[cdec.sa] Explicit feature names in grammar extractor output

+ sparse features in extractor
+ hg.intersect(string)
+ basestring = str|unicode

8 files changed, 9913 insertions, 5587 deletions

diff --git a/python/src/sa/_sa.c b/python/src/sa/_sa.c
index 0f9b0d22..2dfd212b 100644
--- a/python/src/sa/_sa.c
+++ b/python/src/sa/_sa.c
@@ -1,4 +1,4 @@
-/* Generated by Cython 0.17.beta1 on Sat Jul 28 17:07:03 2012 */
+/* Generated by Cython 0.17.beta1 on Tue Aug 14 22:38:21 2012 */
 
 #define PY_SSIZE_T_CLEAN
 #include "Python.h"
@@ -375,40 +375,50 @@ static const char *__pyx_f[] = {
   "rulefactory.pxi",
   "lcp.pxi",
   "sym.pxi",
-  "_sa.pxd",
   "precomputation.pxi",
   "suffix_array.pxi",
+  "features.pxi",
   "str_map.pxi",
 };
 
 /*--- Type declarations ---*/
 struct __pyx_obj_3_sa_HieroCachingRuleFactory;
-struct __pyx_obj_3_sa___pyx_scope_struct_2_compute_stats;
+struct __pyx_obj_3_sa___pyx_scope_struct_4___iter__;
+struct __pyx_obj_3_sa___pyx_scope_struct_3_compute_stats;
+struct __pyx_obj_3_sa___pyx_scope_struct_11_input;
 struct __pyx_obj_3_sa_IntList;
 struct __pyx_obj_3_sa_VEBIterator;
 struct __pyx_obj_3_sa_BiLex;
-struct __pyx_obj_3_sa_VEB;
+struct __pyx_obj_3_sa_TrieNode;
 struct __pyx_obj_3_sa_LCP;
 struct __pyx_obj_3_sa_DataArray;
 struct __pyx_obj_3_sa_BitSetIterator;
-struct __pyx_obj_3_sa___pyx_scope_struct__read_bitext;
 struct __pyx_obj_3_sa_Precomputation;
+struct __pyx_obj_3_sa___pyx_scope_struct_8___iter__;
 struct __pyx_obj_3_sa_SuffixArray;
-struct __pyx_obj_3_sa___pyx_scope_struct_4_input;
 struct __pyx_obj_3_sa_Alphabet;
 struct __pyx_obj_3_sa_Rule;
+struct __pyx_obj_3_sa___pyx_scope_struct_6_genexpr;
+struct __pyx_obj_3_sa___pyx_scope_struct_2_genexpr;
 struct __pyx_obj_3_sa_PhraseLocation;
-struct __pyx_obj_3_sa___pyx_scope_struct_3___iter__;
+struct __pyx_obj_3_sa___pyx_scope_struct_1_read_bitext;
+struct __pyx_obj_3_sa_FeatureVector;
+struct __pyx_obj_3_sa___pyx_scope_struct_7_alignments;
+struct __pyx_obj_3_sa_Scorer;
 struct __pyx_obj_3_sa_Alignment;
 struct __pyx_obj_3_sa_BitSet;
 struct __pyx_obj_3_sa_Sampler;
+struct __pyx_obj_3_sa___pyx_scope_struct_9___str__;
 struct __pyx_obj_3_sa_StringMap;
-struct __pyx_obj_3_sa_TrieNode;
+struct __pyx_obj_3_sa_VEB;
 struct __pyx_obj_3_sa_ExtendedTrieNode;
 struct __pyx_obj_3_sa_TrieMap;
+struct __pyx_obj_3_sa_DefaultScorer;
 struct __pyx_obj_3_sa_Phrase;
+struct __pyx_obj_3_sa___pyx_scope_struct____iter__;
 struct __pyx_obj_3_sa_TrieTable;
-struct __pyx_obj_3_sa___pyx_scope_struct_1_genexpr;
+struct __pyx_obj_3_sa___pyx_scope_struct_5___str__;
+struct __pyx_obj_3_sa___pyx_scope_struct_10_genexpr;
 struct __pyx_obj_3_sa_FloatList;
 struct __pyx_t_3_sa__node;
 struct __pyx_t_3_sa__BitSet;
@@ -490,7 +500,7 @@ struct __pyx_t_3_sa__Trie_Node {
   int arr_len;
 };
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":48
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":50
  * 
  * # linked list structure for storing matches in BaselineRuleFactory
  * cdef struct match_node:             # <<<<<<<<<<<<<<
@@ -502,7 +512,7 @@ struct __pyx_t_3_sa_match_node {
   struct __pyx_t_3_sa_match_node *next;
 };
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":145
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":146
  * 
  * # struct used to encapsulate a single matching
  * cdef struct Matching:             # <<<<<<<<<<<<<<
@@ -517,7 +527,7 @@ struct __pyx_t_3_sa_Matching {
   int size;
 };
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":201
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":202
  * 
  * 
  * cdef class HieroCachingRuleFactory:             # <<<<<<<<<<<<<<
@@ -529,6 +539,7 @@ struct __pyx_obj_3_sa_HieroCachingRuleFactory {
   struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *__pyx_vtab;
   struct __pyx_obj_3_sa_TrieTable *rules;
   struct __pyx_obj_3_sa_Sampler *sampler;
+  struct __pyx_obj_3_sa_Scorer *scorer;
   int max_chunks;
   int max_target_chunks;
   int max_length;
@@ -565,6 +576,21 @@ struct __pyx_obj_3_sa_HieroCachingRuleFactory {
 };
 
 
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":141
+ *         return self.syms[i]
+ * 
+ *     def __iter__(self):             # <<<<<<<<<<<<<<
+ *         cdef int i
+ *         for i from 0 <= i < self.n:
+ */
+struct __pyx_obj_3_sa___pyx_scope_struct_4___iter__ {
+  PyObject_HEAD
+  int __pyx_v_i;
+  struct __pyx_obj_3_sa_Phrase *__pyx_v_self;
+  int __pyx_t_0;
+};
+
+
 /* "/Users/vchahun/Sandbox/cdec/python/src/sa/lcp.pxi":36
  *         logger.info("LCP array completed")
  * 
@@ -572,7 +598,7 @@ struct __pyx_obj_3_sa_HieroCachingRuleFactory {
  *         """Note: the output of this function is not exact.  In
  *         particular, the frequency associated with each word is
  */
-struct __pyx_obj_3_sa___pyx_scope_struct_2_compute_stats {
+struct __pyx_obj_3_sa___pyx_scope_struct_3_compute_stats {
   PyObject_HEAD
   int __pyx_v_N;
   int __pyx_v_freq;
@@ -596,8 +622,90 @@ struct __pyx_obj_3_sa___pyx_scope_struct_2_compute_stats {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":9
- * from libc.string cimport memset, memcpy
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":923
+ *         return sorted(result);
+ * 
+ *     def input(self, fwords):             # <<<<<<<<<<<<<<
+ *         '''When this function is called on the RuleFactory,
+ *         it looks up all of the rules that can be used to translate
+ */
+struct __pyx_obj_3_sa___pyx_scope_struct_11_input {
+  PyObject_HEAD
+  PyObject *__pyx_v_alignment;
+  PyObject *__pyx_v_als;
+  PyObject *__pyx_v_alslist;
+  int __pyx_v_alt;
+  int __pyx_v_alt_id;
+  int __pyx_v_arity;
+  struct __pyx_obj_3_sa_IntList *__pyx_v_chunklen;
+  PyObject *__pyx_v_count;
+  PyObject *__pyx_v_currcount;
+  PyObject *__pyx_v_e;
+  PyObject *__pyx_v_elist;
+  PyObject *__pyx_v_extract;
+  PyObject *__pyx_v_extract_start;
+  PyObject *__pyx_v_extract_stop;
+  PyObject *__pyx_v_extracts;
+  PyObject *__pyx_v_f;
+  PyObject *__pyx_v_fcount;
+  int __pyx_v_flen;
+  PyObject *__pyx_v_fphrases;
+  PyObject *__pyx_v_frontier;
+  PyObject *__pyx_v_frontier_nodes;
+  PyObject *__pyx_v_fwords;
+  struct __pyx_obj_3_sa_Phrase *__pyx_v_hiero_phrase;
+  long __pyx_v_hit;
+  int __pyx_v_i;
+  PyObject *__pyx_v_is_shadow_path;
+  int __pyx_v_j;
+  int __pyx_v_k;
+  PyObject *__pyx_v_key;
+  int __pyx_v_lookup_required;
+  struct __pyx_t_3_sa_Matching __pyx_v_matching;
+  PyObject *__pyx_v_new_frontier;
+  PyObject *__pyx_v_new_node;
+  PyObject *__pyx_v_next_states;
+  PyObject *__pyx_v_node;
+  PyObject *__pyx_v_nodes_isteps_away_buffer;
+  int __pyx_v_nualt;
+  int __pyx_v_num_samples;
+  int __pyx_v_num_subpatterns;
+  PyObject *__pyx_v_pathlen;
+  PyObject *__pyx_v_phrase;
+  struct __pyx_obj_3_sa_PhraseLocation *__pyx_v_phrase_location;
+  PyObject *__pyx_v_prefix;
+  PyObject *__pyx_v_reachable_buffer;
+  PyObject *__pyx_v_sa_range;
+  struct __pyx_obj_3_sa_IntList *__pyx_v_sample;
+  struct __pyx_obj_3_sa_FeatureVector *__pyx_v_scores;
+  struct __pyx_obj_3_sa_HieroCachingRuleFactory *__pyx_v_self;
+  PyObject *__pyx_v_spanlen;
+  float __pyx_v_start_time;
+  PyObject *__pyx_v_stop_time;
+  PyObject *__pyx_v_suffix_link;
+  int __pyx_v_suffix_link_xcat;
+  PyObject *__pyx_v_suffix_link_xcat_index;
+  PyObject *__pyx_v_word_id;
+  int __pyx_v_x1;
+  int __pyx_v_xcat;
+  PyObject *__pyx_v_xcat_index;
+  PyObject *__pyx_v_xnode;
+  PyObject *__pyx_v_xroot;
+  Py_ssize_t __pyx_t_0;
+  PyObject *__pyx_t_1;
+  Py_ssize_t __pyx_t_2;
+  int __pyx_t_3;
+  PyObject *__pyx_t_4;
+  PyObject *__pyx_t_5;
+  int __pyx_t_6;
+  Py_ssize_t __pyx_t_7;
+  Py_ssize_t __pyx_t_8;
+  Py_ssize_t __pyx_t_9;
+};
+
+
+/* "_sa.pxd":12
+ *     cdef void read_handle(self, FILE* f)
  * 
  * cdef class IntList:             # <<<<<<<<<<<<<<
  *     cdef int size
@@ -648,17 +756,16 @@ struct __pyx_obj_3_sa_BiLex {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/veb.pxi":354
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":20
+ * cdef int EPSILON = sym_fromstring('*EPS*', True)
  * 
+ * cdef class TrieNode:             # <<<<<<<<<<<<<<
+ *     cdef public children
  * 
- * cdef class VEB:             # <<<<<<<<<<<<<<
- *     cdef _VEB* veb
- *     cdef int _findsucc(self, int i)
  */
-struct __pyx_obj_3_sa_VEB {
+struct __pyx_obj_3_sa_TrieNode {
   PyObject_HEAD
-  struct __pyx_vtabstruct_3_sa_VEB *__pyx_vtab;
-  struct __pyx_t_3_sa__VEB *veb;
+  PyObject *children;
 };
 
 
@@ -709,20 +816,6 @@ struct __pyx_obj_3_sa_BitSetIterator {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/data_array.pxi":71
- *             self.read_text_data(fp)
- * 
- *     def read_bitext(self, char* filename, int side):             # <<<<<<<<<<<<<<
- *         with gzip_or_text(filename) as fp:
- *             data = (line.split(' ||| ')[side] for line in fp)
- */
-struct __pyx_obj_3_sa___pyx_scope_struct__read_bitext {
-  PyObject_HEAD
-  PyObject *__pyx_v_fp;
-  int __pyx_v_side;
-};
-
-
 /* "/Users/vchahun/Sandbox/cdec/python/src/sa/precomputation.pxi":188
  * 
  * 
@@ -744,6 +837,22 @@ struct __pyx_obj_3_sa_Precomputation {
 };
 
 
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":15
+ *         self.values.append(value)
+ * 
+ *     def __iter__(self):             # <<<<<<<<<<<<<<
+ *         cdef unsigned i
+ *         for i in range(self.names.len):
+ */
+struct __pyx_obj_3_sa___pyx_scope_struct_8___iter__ {
+  PyObject_HEAD
+  unsigned int __pyx_v_i;
+  struct __pyx_obj_3_sa_FeatureVector *__pyx_v_self;
+  int __pyx_t_0;
+  unsigned int __pyx_t_1;
+};
+
+
 /* "/Users/vchahun/Sandbox/cdec/python/src/sa/suffix_array.pxi":6
  * from libc.stdio cimport FILE, fclose, fopen
  * 
@@ -760,92 +869,6 @@ struct __pyx_obj_3_sa_SuffixArray {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":919
- *         return sorted(result);
- * 
- *     def input(self, fwords, models):             # <<<<<<<<<<<<<<
- *         '''When this function is called on the RuleFactory,
- *         it looks up all of the rules that can be used to translate
- */
-struct __pyx_obj_3_sa___pyx_scope_struct_4_input {
-  PyObject_HEAD
-  PyObject *__pyx_v_alignment;
-  PyObject *__pyx_v_als;
-  PyObject *__pyx_v_alslist;
-  int __pyx_v_alt;
-  int __pyx_v_alt_id;
-  int __pyx_v_arity;
-  struct __pyx_obj_3_sa_IntList *__pyx_v_chunklen;
-  PyObject *__pyx_v_count;
-  PyObject *__pyx_v_currcount;
-  PyObject *__pyx_v_e;
-  PyObject *__pyx_v_elist;
-  PyObject *__pyx_v_extract;
-  PyObject *__pyx_v_extract_start;
-  PyObject *__pyx_v_extract_stop;
-  PyObject *__pyx_v_extracts;
-  PyObject *__pyx_v_f;
-  PyObject *__pyx_v_f_margin;
-  PyObject *__pyx_v_fals;
-  PyObject *__pyx_v_fcount;
-  int __pyx_v_flen;
-  PyObject *__pyx_v_fphrases;
-  PyObject *__pyx_v_frontier;
-  PyObject *__pyx_v_frontier_nodes;
-  PyObject *__pyx_v_fwords;
-  struct __pyx_obj_3_sa_Phrase *__pyx_v_hiero_phrase;
-  long __pyx_v_hit;
-  int __pyx_v_i;
-  PyObject *__pyx_v_is_shadow_path;
-  int __pyx_v_j;
-  int __pyx_v_k;
-  PyObject *__pyx_v_key;
-  int __pyx_v_lookup_required;
-  struct __pyx_t_3_sa_Matching __pyx_v_matching;
-  PyObject *__pyx_v_model;
-  PyObject *__pyx_v_models;
-  PyObject *__pyx_v_new_frontier;
-  PyObject *__pyx_v_new_node;
-  PyObject *__pyx_v_next_states;
-  PyObject *__pyx_v_node;
-  PyObject *__pyx_v_nodes_isteps_away_buffer;
-  int __pyx_v_nualt;
-  int __pyx_v_num_samples;
-  int __pyx_v_num_subpatterns;
-  PyObject *__pyx_v_pathlen;
-  PyObject *__pyx_v_phrase;
-  struct __pyx_obj_3_sa_PhraseLocation *__pyx_v_phrase_location;
-  PyObject *__pyx_v_prefix;
-  PyObject *__pyx_v_reachable_buffer;
-  PyObject *__pyx_v_sa_range;
-  struct __pyx_obj_3_sa_IntList *__pyx_v_sample;
-  PyObject *__pyx_v_scores;
-  struct __pyx_obj_3_sa_HieroCachingRuleFactory *__pyx_v_self;
-  PyObject *__pyx_v_spanlen;
-  float __pyx_v_start_time;
-  PyObject *__pyx_v_stop_time;
-  PyObject *__pyx_v_suffix_link;
-  int __pyx_v_suffix_link_xcat;
-  PyObject *__pyx_v_suffix_link_xcat_index;
-  PyObject *__pyx_v_word_id;
-  int __pyx_v_x1;
-  int __pyx_v_xcat;
-  PyObject *__pyx_v_xcat_index;
-  PyObject *__pyx_v_xnode;
-  PyObject *__pyx_v_xroot;
-  Py_ssize_t __pyx_t_0;
-  PyObject *__pyx_t_1;
-  Py_ssize_t __pyx_t_2;
-  int __pyx_t_3;
-  PyObject *__pyx_t_4;
-  PyObject *__pyx_t_5;
-  int __pyx_t_6;
-  Py_ssize_t __pyx_t_7;
-  Py_ssize_t __pyx_t_8;
-  Py_ssize_t __pyx_t_9;
-};
-
-
 /* "/Users/vchahun/Sandbox/cdec/python/src/sa/sym.pxi":7
  * cdef int INDEX_MASK = (1<<INDEX_SHIFT)-1
  * 
@@ -863,18 +886,60 @@ struct __pyx_obj_3_sa_Alphabet {
   PyObject *id2sym;
 };
 
+
+/* "_sa.pxd":35
+ *     cdef public int chunklen(self, int k)
+ * 
+ * cdef class Rule:             # <<<<<<<<<<<<<<
+ *     cdef int lhs
+ *     cdef readonly Phrase f, e
+ */
 struct __pyx_obj_3_sa_Rule {
   PyObject_HEAD
   int lhs;
   struct __pyx_obj_3_sa_Phrase *f;
   struct __pyx_obj_3_sa_Phrase *e;
-  float *cscores;
+  struct __pyx_obj_3_sa_FeatureVector *scores;
   int n_scores;
   PyObject *word_alignments;
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":56
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":187
+ *         fields = [sym_tostring(self.lhs), str(self.f), str(self.e), str(self.scores)]
+ *         if self.word_alignments is not None:
+ *             fields.append(' '.join('%d-%d' % a for a in self.alignments()))             # <<<<<<<<<<<<<<
+ *         return ' ||| '.join(fields)
+ * 
+ */
+struct __pyx_obj_3_sa___pyx_scope_struct_6_genexpr {
+  PyObject_HEAD
+  struct __pyx_obj_3_sa___pyx_scope_struct_5___str__ *__pyx_outer_scope;
+  PyObject *__pyx_v_a;
+  PyObject *__pyx_t_0;
+  Py_ssize_t __pyx_t_1;
+  PyObject *(*__pyx_t_2)(PyObject *);
+};
+
+
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/data_array.pxi":73
+ *     def read_bitext(self, char* filename, int side):
+ *         with gzip_or_text(filename) as fp:
+ *             data = (line.split(' ||| ')[side] for line in fp)             # <<<<<<<<<<<<<<
+ *             self.read_text_data(data)
+ * 
+ */
+struct __pyx_obj_3_sa___pyx_scope_struct_2_genexpr {
+  PyObject_HEAD
+  struct __pyx_obj_3_sa___pyx_scope_struct_1_read_bitext *__pyx_outer_scope;
+  PyObject *__pyx_v_line;
+  PyObject *__pyx_t_0;
+  Py_ssize_t __pyx_t_1;
+  PyObject *(*__pyx_t_2)(PyObject *);
+};
+
+
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":58
  * # in the suffix array; if discontiguous, it is the set of
  * # actual locations (packed into an array)
  * cdef class PhraseLocation:             # <<<<<<<<<<<<<<
@@ -893,18 +958,62 @@ struct __pyx_obj_3_sa_PhraseLocation {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":141
- *         return self.syms[i]
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/data_array.pxi":71
+ *             self.read_text_data(fp)
  * 
- *     def __iter__(self):             # <<<<<<<<<<<<<<
- *         cdef int i
- *         for i from 0 <= i < self.n:
+ *     def read_bitext(self, char* filename, int side):             # <<<<<<<<<<<<<<
+ *         with gzip_or_text(filename) as fp:
+ *             data = (line.split(' ||| ')[side] for line in fp)
  */
-struct __pyx_obj_3_sa___pyx_scope_struct_3___iter__ {
+struct __pyx_obj_3_sa___pyx_scope_struct_1_read_bitext {
   PyObject_HEAD
-  int __pyx_v_i;
-  struct __pyx_obj_3_sa_Phrase *__pyx_v_self;
-  int __pyx_t_0;
+  PyObject *__pyx_v_fp;
+  int __pyx_v_side;
+};
+
+
+/* "_sa.pxd":25
+ *     cdef void read_handle(self, FILE* f)
+ * 
+ * cdef class FeatureVector:             # <<<<<<<<<<<<<<
+ *     cdef IntList names
+ *     cdef FloatList values
+ */
+struct __pyx_obj_3_sa_FeatureVector {
+  PyObject_HEAD
+  struct __pyx_obj_3_sa_IntList *names;
+  struct __pyx_obj_3_sa_FloatList *values;
+};
+
+
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":190
+ *         return ' ||| '.join(fields)
+ * 
+ *     def alignments(self):             # <<<<<<<<<<<<<<
+ *         for point in self.word_alignments:
+ *             yield point/65536, point%65536
+ */
+struct __pyx_obj_3_sa___pyx_scope_struct_7_alignments {
+  PyObject_HEAD
+  PyObject *__pyx_v_point;
+  struct __pyx_obj_3_sa_Rule *__pyx_v_self;
+  PyObject *__pyx_t_0;
+  Py_ssize_t __pyx_t_1;
+  PyObject *(*__pyx_t_2)(PyObject *);
+};
+
+
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":23
+ *         return ' '.join('%s=%s' % feat for feat in self)
+ * 
+ * cdef class Scorer:             # <<<<<<<<<<<<<<
+ *     cdef models
+ *     def __init__(self, *models):
+ */
+struct __pyx_obj_3_sa_Scorer {
+  PyObject_HEAD
+  struct __pyx_vtabstruct_3_sa_Scorer *__pyx_vtab;
+  PyObject *models;
 };
 
 
@@ -936,7 +1045,7 @@ struct __pyx_obj_3_sa_BitSet {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":79
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":80
  * 
  * 
  * cdef class Sampler:             # <<<<<<<<<<<<<<
@@ -950,6 +1059,19 @@ struct __pyx_obj_3_sa_Sampler {
 };
 
 
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":20
+ *             yield (FD.word(self.names[i]), self.values[i])
+ * 
+ *     def __str__(self):             # <<<<<<<<<<<<<<
+ *         return ' '.join('%s=%s' % feat for feat in self)
+ * 
+ */
+struct __pyx_obj_3_sa___pyx_scope_struct_9___str__ {
+  PyObject_HEAD
+  struct __pyx_obj_3_sa_FeatureVector *__pyx_v_self;
+};
+
+
 /* "/Users/vchahun/Sandbox/cdec/python/src/sa/str_map.pxi":8
  *     char* stringmap_word(StrMap *vocab, int i)
  * 
@@ -964,20 +1086,21 @@ struct __pyx_obj_3_sa_StringMap {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":18
- * cdef int EPSILON = sym_fromstring('*EPS*', True)
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/veb.pxi":354
  * 
- * cdef class TrieNode:             # <<<<<<<<<<<<<<
- *     cdef public children
  * 
+ * cdef class VEB:             # <<<<<<<<<<<<<<
+ *     cdef _VEB* veb
+ *     cdef int _findsucc(self, int i)
  */
-struct __pyx_obj_3_sa_TrieNode {
+struct __pyx_obj_3_sa_VEB {
   PyObject_HEAD
-  PyObject *children;
+  struct __pyx_vtabstruct_3_sa_VEB *__pyx_vtab;
+  struct __pyx_t_3_sa__VEB *veb;
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":24
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":26
  *         self.children = {}
  * 
  * cdef class ExtendedTrieNode(TrieNode):             # <<<<<<<<<<<<<<
@@ -1007,7 +1130,23 @@ struct __pyx_obj_3_sa_TrieMap {
 };
 
 
-/* "_sa.pxd":1
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":49
+ * NFEATURES = 7
+ * 
+ * cdef class DefaultScorer(Scorer):             # <<<<<<<<<<<<<<
+ *     cdef BiLex ttable
+ *     cdef int* fid
+ */
+struct __pyx_obj_3_sa_DefaultScorer {
+  struct __pyx_obj_3_sa_Scorer __pyx_base;
+  struct __pyx_obj_3_sa_BiLex *ttable;
+  int *fid;
+};
+
+
+/* "_sa.pxd":29
+ *     cdef FloatList values
+ * 
  * cdef class Phrase:             # <<<<<<<<<<<<<<
  *     cdef int *syms
  *     cdef int n, *varpos, n_vars
@@ -1022,7 +1161,23 @@ struct __pyx_obj_3_sa_Phrase {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":35
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":81
+ *         free(self.arr)
+ * 
+ *     def __iter__(self):             # <<<<<<<<<<<<<<
+ *         cdef int i
+ *         for i in range(self.len):
+ */
+struct __pyx_obj_3_sa___pyx_scope_struct____iter__ {
+  PyObject_HEAD
+  int __pyx_v_i;
+  struct __pyx_obj_3_sa_IntList *__pyx_v_self;
+  int __pyx_t_0;
+  int __pyx_t_1;
+};
+
+
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":37
  * 
  * 
  * cdef class TrieTable:             # <<<<<<<<<<<<<<
@@ -1037,25 +1192,38 @@ struct __pyx_obj_3_sa_TrieTable {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/data_array.pxi":73
- *     def read_bitext(self, char* filename, int side):
- *         with gzip_or_text(filename) as fp:
- *             data = (line.split(' ||| ')[side] for line in fp)             # <<<<<<<<<<<<<<
- *             self.read_text_data(data)
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":183
+ *         return self.f.arity()
  * 
+ *     def __str__(self):             # <<<<<<<<<<<<<<
+ *         cdef unsigned i
+ *         fields = [sym_tostring(self.lhs), str(self.f), str(self.e), str(self.scores)]
  */
-struct __pyx_obj_3_sa___pyx_scope_struct_1_genexpr {
+struct __pyx_obj_3_sa___pyx_scope_struct_5___str__ {
   PyObject_HEAD
-  struct __pyx_obj_3_sa___pyx_scope_struct__read_bitext *__pyx_outer_scope;
-  PyObject *__pyx_v_line;
+  struct __pyx_obj_3_sa_Rule *__pyx_v_self;
+};
+
+
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":21
+ * 
+ *     def __str__(self):
+ *         return ' '.join('%s=%s' % feat for feat in self)             # <<<<<<<<<<<<<<
+ * 
+ * cdef class Scorer:
+ */
+struct __pyx_obj_3_sa___pyx_scope_struct_10_genexpr {
+  PyObject_HEAD
+  struct __pyx_obj_3_sa___pyx_scope_struct_9___str__ *__pyx_outer_scope;
+  PyObject *__pyx_v_feat;
   PyObject *__pyx_t_0;
   Py_ssize_t __pyx_t_1;
   PyObject *(*__pyx_t_2)(PyObject *);
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":9
- * from libc.string cimport memset, strcpy, strlen
+/* "_sa.pxd":3
+ * from libc.stdio cimport FILE
  * 
  * cdef class FloatList:             # <<<<<<<<<<<<<<
  *     cdef int size
@@ -1117,6 +1285,34 @@ struct __pyx_vtabstruct_3_sa_TrieMap {
 static struct __pyx_vtabstruct_3_sa_TrieMap *__pyx_vtabptr_3_sa_TrieMap;
 
 
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":23
+ *         return ' '.join('%s=%s' % feat for feat in self)
+ * 
+ * cdef class Scorer:             # <<<<<<<<<<<<<<
+ *     cdef models
+ *     def __init__(self, *models):
+ */
+
+struct __pyx_vtabstruct_3_sa_Scorer {
+  struct __pyx_obj_3_sa_FeatureVector *(*score)(struct __pyx_obj_3_sa_Scorer *, struct __pyx_obj_3_sa_Phrase *, struct __pyx_obj_3_sa_Phrase *, unsigned int, unsigned int, unsigned int);
+};
+static struct __pyx_vtabstruct_3_sa_Scorer *__pyx_vtabptr_3_sa_Scorer;
+
+
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":49
+ * NFEATURES = 7
+ * 
+ * cdef class DefaultScorer(Scorer):             # <<<<<<<<<<<<<<
+ *     cdef BiLex ttable
+ *     cdef int* fid
+ */
+
+struct __pyx_vtabstruct_3_sa_DefaultScorer {
+  struct __pyx_vtabstruct_3_sa_Scorer __pyx_base;
+};
+static struct __pyx_vtabstruct_3_sa_DefaultScorer *__pyx_vtabptr_3_sa_DefaultScorer;
+
+
 /* "/Users/vchahun/Sandbox/cdec/python/src/sa/alignment.pxi":8
  * # May need to revisit if things get really tight, though.
  * 
@@ -1156,8 +1352,8 @@ static struct __pyx_vtabstruct_3_sa_BiLex *__pyx_vtabptr_3_sa_BiLex;
  * from libc.string cimport memset, memcpy
  * 
  * cdef class IntList:             # <<<<<<<<<<<<<<
- *     cdef int size
- *     cdef int increment
+ * 
+ *     def __cinit__(self, int size=0, int increment=1, int initial_len=0):
  */
 
 struct __pyx_vtabstruct_3_sa_IntList {
@@ -1187,7 +1383,7 @@ struct __pyx_vtabstruct_3_sa_Phrase {
 static struct __pyx_vtabstruct_3_sa_Phrase *__pyx_vtabptr_3_sa_Phrase;
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":56
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":58
  * # in the suffix array; if discontiguous, it is the set of
  * # actual locations (packed into an array)
  * cdef class PhraseLocation:             # <<<<<<<<<<<<<<
@@ -1220,8 +1416,8 @@ static struct __pyx_vtabstruct_3_sa_Precomputation *__pyx_vtabptr_3_sa_Precomput
  * from libc.string cimport memset, strcpy, strlen
  * 
  * cdef class FloatList:             # <<<<<<<<<<<<<<
- *     cdef int size
- *     cdef int increment
+ * 
+ *     def __cinit__(self, int size=0, int increment=1, int initial_len=0):
  */
 
 struct __pyx_vtabstruct_3_sa_FloatList {
@@ -1271,7 +1467,7 @@ struct __pyx_vtabstruct_3_sa_Alphabet {
 static struct __pyx_vtabstruct_3_sa_Alphabet *__pyx_vtabptr_3_sa_Alphabet;
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":201
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":202
  * 
  * 
  * cdef class HieroCachingRuleFactory:             # <<<<<<<<<<<<<<
@@ -1293,7 +1489,7 @@ struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory {
   PyObject *(*find_projection)(struct __pyx_obj_3_sa_HieroCachingRuleFactory *, int, int, int *, int *, int *, int *);
   int *(*int_arr_extend)(struct __pyx_obj_3_sa_HieroCachingRuleFactory *, int *, int *, int *, int);
   PyObject *(*extract_phrases)(struct __pyx_obj_3_sa_HieroCachingRuleFactory *, int, int, int *, int *, int *, int, int, int, int *, int *, int *, int, int, int);
-  PyObject *(*create_alignments)(struct __pyx_obj_3_sa_HieroCachingRuleFactory *, int *, int, PyObject *, PyObject *);
+  struct __pyx_obj_3_sa_IntList *(*create_alignments)(struct __pyx_obj_3_sa_HieroCachingRuleFactory *, int *, int, PyObject *, PyObject *);
   PyObject *(*extract)(struct __pyx_obj_3_sa_HieroCachingRuleFactory *, struct __pyx_obj_3_sa_Phrase *, struct __pyx_t_3_sa_Matching *, int *, int);
 };
 static struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *__pyx_vtabptr_3_sa_HieroCachingRuleFactory;
@@ -1744,43 +1940,13 @@ static CYTHON_INLINE PyObject* __Pyx_PyObject_Pop(PyObject* L) {
     return PyObject_CallMethod(L, (char*)"pop", NULL);
 }
 
-static PyObject *__Pyx_PyDict_SetDefault(PyObject *d, PyObject *key, PyObject *default_value) {
-    PyObject* value;
-#if PY_MAJOR_VERSION >= 3
-    value = PyDict_GetItemWithError(d, key);
-    if (unlikely(!value)) {
-        if (unlikely(PyErr_Occurred()))
-            return NULL;
-        if (unlikely(PyDict_SetItem(d, key, default_value) == -1))
-            return NULL;
-        value = default_value;
-    }
-    Py_INCREF(value);
-#else
-    if (PyString_CheckExact(key) || PyUnicode_CheckExact(key) || PyInt_CheckExact(key)) {
-        value = PyDict_GetItem(d, key);
-        if (unlikely(!value)) {
-            if (unlikely(PyDict_SetItem(d, key, default_value) == -1))
-                return NULL;
-            value = default_value;
-        }
-        Py_INCREF(value);
-    } else {
-        PyObject *m;
-        m = __Pyx_GetAttrString(d, "setdefault");
-        if (!m) return NULL;
-        value = PyObject_CallFunctionObjArgs(m, key, default_value, NULL);
-        Py_DECREF(m);
-    }
-#endif
-    return value;
-}
-
 static CYTHON_INLINE void __Pyx_ExceptionSave(PyObject **type, PyObject **value, PyObject **tb); /*proto*/
 static void __Pyx_ExceptionReset(PyObject *type, PyObject *value, PyObject *tb); /*proto*/
 
 static PyObject *__Pyx_Import(PyObject *name, PyObject *from_list, long level); /*proto*/
 
+static CYTHON_INLINE void __Pyx_RaiseImportError(PyObject *name);
+
 #include <string.h>
 
 static CYTHON_INLINE int __Pyx_PyBytes_Equals(PyObject* s1, PyObject* s2, int equals); /*proto*/
@@ -1793,6 +1959,48 @@ static CYTHON_INLINE int __Pyx_PyUnicode_Equals(PyObject* s1, PyObject* s2, int
 #define __Pyx_PyString_Equals __Pyx_PyBytes_Equals
 #endif
 
+#define __Pyx_CyFunction_USED 1
+#include <structmember.h>
+#define __Pyx_CYFUNCTION_STATICMETHOD  0x01
+#define __Pyx_CYFUNCTION_CLASSMETHOD   0x02
+#define __Pyx_CYFUNCTION_CCLASS        0x04
+#define __Pyx_CyFunction_GetClosure(f) \
+    (((__pyx_CyFunctionObject *) (f))->func_closure)
+#define __Pyx_CyFunction_GetClassObj(f) \
+    (((__pyx_CyFunctionObject *) (f))->func_classobj)
+#define __Pyx_CyFunction_Defaults(type, f) \
+    ((type *)(((__pyx_CyFunctionObject *) (f))->defaults))
+#define __Pyx_CyFunction_SetDefaultsGetter(f, g) \
+    ((__pyx_CyFunctionObject *) (f))->defaults_getter = (g)
+typedef struct {
+    PyCFunctionObject func;
+    int flags;
+    PyObject *func_dict;
+    PyObject *func_weakreflist;
+    PyObject *func_name;
+    PyObject *func_doc;
+    PyObject *func_code;
+    PyObject *func_closure;
+    PyObject *func_classobj; /* No-args super() class cell */
+    void *defaults;
+    int defaults_pyobjects;
+    PyObject *defaults_tuple; /* Const defaults tuple */
+    PyObject *(*defaults_getter)(PyObject *);
+} __pyx_CyFunctionObject;
+static PyTypeObject *__pyx_CyFunctionType = 0;
+#define __Pyx_CyFunction_NewEx(ml, flags, self, module, code) \
+    __Pyx_CyFunction_New(__pyx_CyFunctionType, ml, flags, self, module, code)
+static PyObject *__Pyx_CyFunction_New(PyTypeObject *,
+                                      PyMethodDef *ml, int flags,
+                                      PyObject *self, PyObject *module,
+                                      PyObject* code);
+static CYTHON_INLINE void *__Pyx_CyFunction_InitDefaults(PyObject *m,
+                                                         size_t size,
+                                                         int pyobjects);
+static CYTHON_INLINE void __Pyx_CyFunction_SetDefaultsTuple(PyObject *m,
+                                                            PyObject *tuple);
+static int __Pyx_CyFunction_init(void);
+
 static CYTHON_INLINE unsigned char __Pyx_PyInt_AsUnsignedChar(PyObject *);
 
 static CYTHON_INLINE unsigned short __Pyx_PyInt_AsUnsignedShort(PyObject *);
@@ -1892,10 +2100,11 @@ static int __Pyx_InitStrings(__Pyx_StringTabEntry *t); /*proto*/
 /* Module declarations from 'libc.math' */
 
 /* Module declarations from '_sa' */
-static PyTypeObject *__pyx_ptype_3_sa_Phrase = 0;
-static PyTypeObject *__pyx_ptype_3_sa_Rule = 0;
 static PyTypeObject *__pyx_ptype_3_sa_FloatList = 0;
 static PyTypeObject *__pyx_ptype_3_sa_IntList = 0;
+static PyTypeObject *__pyx_ptype_3_sa_FeatureVector = 0;
+static PyTypeObject *__pyx_ptype_3_sa_Phrase = 0;
+static PyTypeObject *__pyx_ptype_3_sa_Rule = 0;
 static PyTypeObject *__pyx_ptype_3_sa_StringMap = 0;
 static PyTypeObject *__pyx_ptype_3_sa_DataArray = 0;
 static PyTypeObject *__pyx_ptype_3_sa_Alignment = 0;
@@ -1909,23 +2118,33 @@ static PyTypeObject *__pyx_ptype_3_sa_Alphabet = 0;
 static PyTypeObject *__pyx_ptype_3_sa_TrieMap = 0;
 static PyTypeObject *__pyx_ptype_3_sa_Precomputation = 0;
 static PyTypeObject *__pyx_ptype_3_sa_SuffixArray = 0;
+static PyTypeObject *__pyx_ptype_3_sa_Scorer = 0;
+static PyTypeObject *__pyx_ptype_3_sa_DefaultScorer = 0;
 static PyTypeObject *__pyx_ptype_3_sa_TrieNode = 0;
 static PyTypeObject *__pyx_ptype_3_sa_ExtendedTrieNode = 0;
 static PyTypeObject *__pyx_ptype_3_sa_TrieTable = 0;
 static PyTypeObject *__pyx_ptype_3_sa_PhraseLocation = 0;
 static PyTypeObject *__pyx_ptype_3_sa_Sampler = 0;
 static PyTypeObject *__pyx_ptype_3_sa_HieroCachingRuleFactory = 0;
-static PyTypeObject *__pyx_ptype_3_sa___pyx_scope_struct__read_bitext = 0;
-static PyTypeObject *__pyx_ptype_3_sa___pyx_scope_struct_1_genexpr = 0;
-static PyTypeObject *__pyx_ptype_3_sa___pyx_scope_struct_2_compute_stats = 0;
-static PyTypeObject *__pyx_ptype_3_sa___pyx_scope_struct_3___iter__ = 0;
-static PyTypeObject *__pyx_ptype_3_sa___pyx_scope_struct_4_input = 0;
+static PyTypeObject *__pyx_ptype_3_sa___pyx_scope_struct____iter__ = 0;
+static PyTypeObject *__pyx_ptype_3_sa___pyx_scope_struct_1_read_bitext = 0;
+static PyTypeObject *__pyx_ptype_3_sa___pyx_scope_struct_2_genexpr = 0;
+static PyTypeObject *__pyx_ptype_3_sa___pyx_scope_struct_3_compute_stats = 0;
+static PyTypeObject *__pyx_ptype_3_sa___pyx_scope_struct_4___iter__ = 0;
+static PyTypeObject *__pyx_ptype_3_sa___pyx_scope_struct_5___str__ = 0;
+static PyTypeObject *__pyx_ptype_3_sa___pyx_scope_struct_6_genexpr = 0;
+static PyTypeObject *__pyx_ptype_3_sa___pyx_scope_struct_7_alignments = 0;
+static PyTypeObject *__pyx_ptype_3_sa___pyx_scope_struct_8___iter__ = 0;
+static PyTypeObject *__pyx_ptype_3_sa___pyx_scope_struct_9___str__ = 0;
+static PyTypeObject *__pyx_ptype_3_sa___pyx_scope_struct_10_genexpr = 0;
+static PyTypeObject *__pyx_ptype_3_sa___pyx_scope_struct_11_input = 0;
 static int __pyx_v_3_sa_MIN_BOTTOM_SIZE;
 static int __pyx_v_3_sa_MIN_BOTTOM_BITS;
 static int __pyx_v_3_sa_LOWER_MASK[32];
 static int __pyx_v_3_sa_INDEX_SHIFT;
 static int __pyx_v_3_sa_INDEX_MASK;
 static struct __pyx_obj_3_sa_Alphabet *__pyx_v_3_sa_ALPHABET = 0;
+static struct __pyx_obj_3_sa_StringMap *__pyx_v_3_sa_FD = 0;
 static int __pyx_v_3_sa_PRECOMPUTE;
 static int __pyx_v_3_sa_MERGE;
 static int __pyx_v_3_sa_BAEZA_YATES;
@@ -1977,7 +2196,6 @@ static PyObject *__pyx_builtin_Exception;
 static PyObject *__pyx_builtin_zip;
 static PyObject *__pyx_builtin_StopIteration;
 static PyObject *__pyx_builtin_cmp;
-static PyObject *__pyx_builtin_ValueError;
 static PyObject *__pyx_builtin_sorted;
 static PyObject *__pyx_pf_3_sa_gzip_or_text(CYTHON_UNUSED PyObject *__pyx_self, char *__pyx_v_filename); /* proto */
 static int __pyx_pf_3_sa_9FloatList___cinit__(struct __pyx_obj_3_sa_FloatList *__pyx_v_self, int __pyx_v_size, int __pyx_v_increment, int __pyx_v_initial_len); /* proto */
@@ -1996,14 +2214,15 @@ static PyObject *__pyx_pf_3_sa_7IntList_8_doquicksort(struct __pyx_obj_3_sa_IntL
 static PyObject *__pyx_pf_3_sa_7IntList_10sort(struct __pyx_obj_3_sa_IntList *__pyx_v_self); /* proto */
 static PyObject *__pyx_pf_3_sa_7IntList_12reset(struct __pyx_obj_3_sa_IntList *__pyx_v_self); /* proto */
 static void __pyx_pf_3_sa_7IntList_14__dealloc__(struct __pyx_obj_3_sa_IntList *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_3_sa_7IntList_16__getitem__(struct __pyx_obj_3_sa_IntList *__pyx_v_self, PyObject *__pyx_v_index); /* proto */
-static int __pyx_pf_3_sa_7IntList_18__setitem__(struct __pyx_obj_3_sa_IntList *__pyx_v_self, PyObject *__pyx_v_i, PyObject *__pyx_v_val); /* proto */
-static Py_ssize_t __pyx_pf_3_sa_7IntList_20__len__(struct __pyx_obj_3_sa_IntList *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_3_sa_7IntList_22getSize(struct __pyx_obj_3_sa_IntList *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_3_sa_7IntList_24append(struct __pyx_obj_3_sa_IntList *__pyx_v_self, int __pyx_v_val); /* proto */
-static PyObject *__pyx_pf_3_sa_7IntList_26extend(struct __pyx_obj_3_sa_IntList *__pyx_v_self, PyObject *__pyx_v_other); /* proto */
-static PyObject *__pyx_pf_3_sa_7IntList_28write(struct __pyx_obj_3_sa_IntList *__pyx_v_self, char *__pyx_v_filename); /* proto */
-static PyObject *__pyx_pf_3_sa_7IntList_30read(struct __pyx_obj_3_sa_IntList *__pyx_v_self, char *__pyx_v_filename); /* proto */
+static PyObject *__pyx_pf_3_sa_7IntList_16__iter__(struct __pyx_obj_3_sa_IntList *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_3_sa_7IntList_19__getitem__(struct __pyx_obj_3_sa_IntList *__pyx_v_self, PyObject *__pyx_v_index); /* proto */
+static int __pyx_pf_3_sa_7IntList_21__setitem__(struct __pyx_obj_3_sa_IntList *__pyx_v_self, PyObject *__pyx_v_i, PyObject *__pyx_v_val); /* proto */
+static Py_ssize_t __pyx_pf_3_sa_7IntList_23__len__(struct __pyx_obj_3_sa_IntList *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_3_sa_7IntList_25getSize(struct __pyx_obj_3_sa_IntList *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_3_sa_7IntList_27append(struct __pyx_obj_3_sa_IntList *__pyx_v_self, int __pyx_v_val); /* proto */
+static PyObject *__pyx_pf_3_sa_7IntList_29extend(struct __pyx_obj_3_sa_IntList *__pyx_v_self, PyObject *__pyx_v_other); /* proto */
+static PyObject *__pyx_pf_3_sa_7IntList_31write(struct __pyx_obj_3_sa_IntList *__pyx_v_self, char *__pyx_v_filename); /* proto */
+static PyObject *__pyx_pf_3_sa_7IntList_33read(struct __pyx_obj_3_sa_IntList *__pyx_v_self, char *__pyx_v_filename); /* proto */
 static int __pyx_pf_3_sa_9StringMap___cinit__(struct __pyx_obj_3_sa_StringMap *__pyx_v_self); /* proto */
 static void __pyx_pf_3_sa_9StringMap_2__dealloc__(struct __pyx_obj_3_sa_StringMap *__pyx_v_self); /* proto */
 static int __pyx_pf_3_sa_9DataArray___cinit__(struct __pyx_obj_3_sa_DataArray *__pyx_v_self, PyObject *__pyx_v_from_binary, PyObject *__pyx_v_from_text, PyObject *__pyx_v_side, int __pyx_v_use_sent_id); /* proto */
@@ -2086,24 +2305,17 @@ static PyObject *__pyx_pf_3_sa_6Phrase_28__iter__(struct __pyx_obj_3_sa_Phrase *
 static PyObject *__pyx_pf_3_sa_6Phrase_31subst(struct __pyx_obj_3_sa_Phrase *__pyx_v_self, PyObject *__pyx_v_start, PyObject *__pyx_v_children); /* proto */
 static PyObject *__pyx_pf_3_sa_6Phrase_5words___get__(struct __pyx_obj_3_sa_Phrase *__pyx_v_self); /* proto */
 static int __pyx_pf_3_sa_4Rule___cinit__(struct __pyx_obj_3_sa_Rule *__pyx_v_self, int __pyx_v_lhs, struct __pyx_obj_3_sa_Phrase *__pyx_v_f, struct __pyx_obj_3_sa_Phrase *__pyx_v_e, PyObject *__pyx_v_scores, PyObject *__pyx_v_word_alignments); /* proto */
-static void __pyx_pf_3_sa_4Rule_2__dealloc__(struct __pyx_obj_3_sa_Rule *__pyx_v_self); /* proto */
-static Py_hash_t __pyx_pf_3_sa_4Rule_4__hash__(struct __pyx_obj_3_sa_Rule *__pyx_v_self); /* proto */
+static Py_hash_t __pyx_pf_3_sa_4Rule_2__hash__(struct __pyx_obj_3_sa_Rule *__pyx_v_self); /* proto */
 #if PY_MAJOR_VERSION < 3
-static int __pyx_pf_3_sa_4Rule_6__cmp__(struct __pyx_obj_3_sa_Rule *__pyx_v_self, struct __pyx_obj_3_sa_Rule *__pyx_v_other); /* proto */
+static int __pyx_pf_3_sa_4Rule_4__cmp__(struct __pyx_obj_3_sa_Rule *__pyx_v_self, struct __pyx_obj_3_sa_Rule *__pyx_v_other); /* proto */
 #endif
-static PyObject *__pyx_pf_3_sa_4Rule_8__iadd__(struct __pyx_obj_3_sa_Rule *__pyx_v_self, struct __pyx_obj_3_sa_Rule *__pyx_v_other); /* proto */
-static PyObject *__pyx_pf_3_sa_4Rule_10fmerge(struct __pyx_obj_3_sa_Rule *__pyx_v_self, struct __pyx_obj_3_sa_Phrase *__pyx_v_f); /* proto */
-static PyObject *__pyx_pf_3_sa_4Rule_12arity(struct __pyx_obj_3_sa_Rule *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_3_sa_4Rule_14__str__(struct __pyx_obj_3_sa_Rule *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_3_sa_4Rule_6scores___get__(struct __pyx_obj_3_sa_Rule *__pyx_v_self); /* proto */
-static int __pyx_pf_3_sa_4Rule_6scores_2__set__(struct __pyx_obj_3_sa_Rule *__pyx_v_self, PyObject *__pyx_v_s); /* proto */
-static PyObject *__pyx_pf_3_sa_4Rule_3lhs___get__(struct __pyx_obj_3_sa_Rule *__pyx_v_self); /* proto */
-static int __pyx_pf_3_sa_4Rule_3lhs_2__set__(struct __pyx_obj_3_sa_Rule *__pyx_v_self, PyObject *__pyx_v_value); /* proto */
+static PyObject *__pyx_pf_3_sa_4Rule_6fmerge(struct __pyx_obj_3_sa_Rule *__pyx_v_self, struct __pyx_obj_3_sa_Phrase *__pyx_v_f); /* proto */
+static PyObject *__pyx_pf_3_sa_4Rule_8arity(struct __pyx_obj_3_sa_Rule *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_3_sa_4Rule_7__str___genexpr(PyObject *__pyx_self); /* proto */
+static PyObject *__pyx_pf_3_sa_4Rule_10__str__(struct __pyx_obj_3_sa_Rule *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_3_sa_4Rule_12alignments(struct __pyx_obj_3_sa_Rule *__pyx_v_self); /* proto */
 static PyObject *__pyx_pf_3_sa_4Rule_1f___get__(struct __pyx_obj_3_sa_Rule *__pyx_v_self); /* proto */
 static PyObject *__pyx_pf_3_sa_4Rule_1e___get__(struct __pyx_obj_3_sa_Rule *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_3_sa_4Rule_15word_alignments___get__(struct __pyx_obj_3_sa_Rule *__pyx_v_self); /* proto */
-static int __pyx_pf_3_sa_4Rule_15word_alignments_2__set__(struct __pyx_obj_3_sa_Rule *__pyx_v_self, PyObject *__pyx_v_value); /* proto */
-static int __pyx_pf_3_sa_4Rule_15word_alignments_4__del__(struct __pyx_obj_3_sa_Rule *__pyx_v_self); /* proto */
 static int __pyx_pf_3_sa_7TrieMap___cinit__(struct __pyx_obj_3_sa_TrieMap *__pyx_v_self, int __pyx_v_alphabet_size); /* proto */
 static void __pyx_pf_3_sa_7TrieMap_2__dealloc__(struct __pyx_obj_3_sa_TrieMap *__pyx_v_self); /* proto */
 static PyObject *__pyx_pf_3_sa_7TrieMap_4insert(struct __pyx_obj_3_sa_TrieMap *__pyx_v_self, PyObject *__pyx_v_pattern); /* proto */
@@ -2125,6 +2337,14 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_16read_binary(struct __pyx_obj_3_sa
 static PyObject *__pyx_pf_3_sa_11SuffixArray_18write_binary(struct __pyx_obj_3_sa_SuffixArray *__pyx_v_self, char *__pyx_v_filename); /* proto */
 static PyObject *__pyx_pf_3_sa_11SuffixArray_20write_enhanced(struct __pyx_obj_3_sa_SuffixArray *__pyx_v_self, char *__pyx_v_filename); /* proto */
 static PyObject *__pyx_pf_3_sa_11SuffixArray_22lookup(struct __pyx_obj_3_sa_SuffixArray *__pyx_v_self, PyObject *__pyx_v_word, int __pyx_v_offset, int __pyx_v_low, int __pyx_v_high); /* proto */
+static int __pyx_pf_3_sa_13FeatureVector___cinit__(struct __pyx_obj_3_sa_FeatureVector *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_3_sa_13FeatureVector_2set(struct __pyx_obj_3_sa_FeatureVector *__pyx_v_self, unsigned int __pyx_v_name, float __pyx_v_value); /* proto */
+static PyObject *__pyx_pf_3_sa_13FeatureVector_4__iter__(struct __pyx_obj_3_sa_FeatureVector *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_3_sa_13FeatureVector_7__str___genexpr(PyObject *__pyx_self); /* proto */
+static PyObject *__pyx_pf_3_sa_13FeatureVector_7__str__(struct __pyx_obj_3_sa_FeatureVector *__pyx_v_self); /* proto */
+static int __pyx_pf_3_sa_6Scorer___init__(struct __pyx_obj_3_sa_Scorer *__pyx_v_self, PyObject *__pyx_v_models); /* proto */
+static void __pyx_pf_3_sa_13DefaultScorer___dealloc__(struct __pyx_obj_3_sa_DefaultScorer *__pyx_v_self); /* proto */
+static int __pyx_pf_3_sa_13DefaultScorer_2__init__(struct __pyx_obj_3_sa_DefaultScorer *__pyx_v_self, struct __pyx_obj_3_sa_BiLex *__pyx_v_ttable); /* proto */
 static int __pyx_pf_3_sa_8TrieNode___cinit__(struct __pyx_obj_3_sa_TrieNode *__pyx_v_self); /* proto */
 static PyObject *__pyx_pf_3_sa_8TrieNode_8children___get__(struct __pyx_obj_3_sa_TrieNode *__pyx_v_self); /* proto */
 static int __pyx_pf_3_sa_8TrieNode_8children_2__set__(struct __pyx_obj_3_sa_TrieNode *__pyx_v_self, PyObject *__pyx_v_value); /* proto */
@@ -2151,7 +2371,7 @@ static int __pyx_pf_3_sa_14PhraseLocation___cinit__(struct __pyx_obj_3_sa_Phrase
 static int __pyx_pf_3_sa_7Sampler___cinit__(struct __pyx_obj_3_sa_Sampler *__pyx_v_self, int __pyx_v_sample_size, struct __pyx_obj_3_sa_SuffixArray *__pyx_v_fsarray); /* proto */
 static PyObject *__pyx_pf_3_sa_7Sampler_2sample(struct __pyx_obj_3_sa_Sampler *__pyx_v_self, struct __pyx_obj_3_sa_PhraseLocation *__pyx_v_phrase_location); /* proto */
 static int __pyx_pf_3_sa_23HieroCachingRuleFactory___cinit__(struct __pyx_obj_3_sa_HieroCachingRuleFactory *__pyx_v_self, struct __pyx_obj_3_sa_Alignment *__pyx_v_alignment, float __pyx_v_by_slack_factor, char *__pyx_v_category, PyObject *__pyx_v_max_chunks, unsigned int __pyx_v_max_initial_size, unsigned int __pyx_v_max_length, unsigned int __pyx_v_max_nonterminals, PyObject *__pyx_v_max_target_chunks, PyObject *__pyx_v_max_target_length, unsigned int __pyx_v_min_gap_size, PyObject *__pyx_v_precompute_file, unsigned int __pyx_v_precompute_secondary_rank, unsigned int __pyx_v_precompute_rank, int __pyx_v_require_aligned_terminal, int __pyx_v_require_aligned_chunks, unsigned int __pyx_v_train_max_initial_size, unsigned int __pyx_v_train_min_gap_size, int __pyx_v_tight_phrases, int __pyx_v_use_baeza_yates, int __pyx_v_use_collocations, int __pyx_v_use_index); /* proto */
-static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_2configure(struct __pyx_obj_3_sa_HieroCachingRuleFactory *__pyx_v_self, struct __pyx_obj_3_sa_SuffixArray *__pyx_v_fsarray, struct __pyx_obj_3_sa_DataArray *__pyx_v_edarray, struct __pyx_obj_3_sa_Sampler *__pyx_v_sampler); /* proto */
+static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_2configure(struct __pyx_obj_3_sa_HieroCachingRuleFactory *__pyx_v_self, struct __pyx_obj_3_sa_SuffixArray *__pyx_v_fsarray, struct __pyx_obj_3_sa_DataArray *__pyx_v_edarray, struct __pyx_obj_3_sa_Sampler *__pyx_v_sampler, struct __pyx_obj_3_sa_Scorer *__pyx_v_scorer); /* proto */
 static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_4pattern2phrase(struct __pyx_obj_3_sa_HieroCachingRuleFactory *__pyx_v_self, PyObject *__pyx_v_pattern); /* proto */
 static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_6pattern2phrase_plus(struct __pyx_obj_3_sa_HieroCachingRuleFactory *__pyx_v_self, PyObject *__pyx_v_pattern); /* proto */
 static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_8precompute(struct __pyx_obj_3_sa_HieroCachingRuleFactory *__pyx_v_self); /* proto */
@@ -2161,7 +2381,8 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_14get_all_nodes_isteps_
 static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_16reachable(struct __pyx_obj_3_sa_HieroCachingRuleFactory *__pyx_v_self, PyObject *__pyx_v_fwords, PyObject *__pyx_v_ifrom, PyObject *__pyx_v_dist); /* proto */
 static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_18shortest(struct __pyx_obj_3_sa_HieroCachingRuleFactory *__pyx_v_self, PyObject *__pyx_v_fwords, PyObject *__pyx_v_ifrom, PyObject *__pyx_v_ito); /* proto */
 static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_20get_next_states(struct __pyx_obj_3_sa_HieroCachingRuleFactory *__pyx_v_self, PyObject *__pyx_v__columns, PyObject *__pyx_v_curr_idx, PyObject *__pyx_v_min_dist); /* proto */
-static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_22input(struct __pyx_obj_3_sa_HieroCachingRuleFactory *__pyx_v_self, PyObject *__pyx_v_fwords, PyObject *__pyx_v_models); /* proto */
+static PyObject *__pyx_lambda_funcdef_lambda1(CYTHON_UNUSED PyObject *__pyx_self); /* proto */
+static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_22input(struct __pyx_obj_3_sa_HieroCachingRuleFactory *__pyx_v_self, PyObject *__pyx_v_fwords); /* proto */
 static char __pyx_k_1[] = ".gz";
 static char __pyx_k_2[] = "Requested index %d of %d-length FloatList";
 static char __pyx_k_3[] = "IntList[";
@@ -2214,6 +2435,7 @@ static char __pyx_k_91[] = "    Refinement took %f seconds";
 static char __pyx_k_92[] = "    Finalizing sort...";
 static char __pyx_k_94[] = "Suffix array construction took %f seconds";
 static char __pyx_k_95[] = "Unexpected condition found in q3sort: sort from %d to %d";
+static char __pyx_k_99[] = "%s=%s";
 static char __pyx_k__0[] = "0";
 static char __pyx_k__1[] = "1";
 static char __pyx_k__e[] = "e";
@@ -2223,41 +2445,41 @@ static char __pyx_k__i[] = "i";
 static char __pyx_k__j[] = "j";
 static char __pyx_k__r[] = "r";
 static char __pyx_k__w[] = "w";
-static char __pyx_k_100[] = "Sampling strategy: uniform, max sample size = %d";
-static char __pyx_k_101[] = "Sampling strategy: no sampling";
-static char __pyx_k_103[] = "require_aligned_terminal";
-static char __pyx_k_104[] = "require_aligned_chunks";
-static char __pyx_k_105[] = "[X]";
-static char __pyx_k_106[] = "Must specify an alignment object";
-static char __pyx_k_108[] = "Reading precomputed data from file %s... ";
-static char __pyx_k_109[] = "Precomputation done with max nonterminals %d, decoder uses %d";
-static char __pyx_k_110[] = "Precomputation done with max terminals %d, decoder uses %d";
-static char __pyx_k_111[] = "Precomputation done with max initial size %d, decoder uses %d";
-static char __pyx_k_112[] = "Precomputation done with min gap size %d, decoder uses %d";
-static char __pyx_k_113[] = "Converting %d hash keys on precomputed inverted index... ";
-static char __pyx_k_114[] = "Converting %d hash keys on precomputed collocations... ";
-static char __pyx_k_115[] = "Processing precomputations took %f seconds";
-static char __pyx_k_116[] = "{";
-  static char __pyx_k_117[] = "(";
-static char __pyx_k_118[] = "}";
-static char __pyx_k_119[] = "get_precomputed_collocation";
-static char __pyx_k_120[] = "double binary";
-static char __pyx_k_121[] = "Keyword trie error";
-static char __pyx_k_123[] = "get_all_nodes_isteps_away";
-static char __pyx_k_124[] = "Total time for rule lookup, extraction, and scoring = %f seconds";
-static char __pyx_k_125[] = "    Extract time = %f seconds";
-static char __pyx_k_126[] = "No aligned terminals";
-static char __pyx_k_127[] = "Unaligned chunk";
-static char __pyx_k_128[] = "Gaps are not tight phrases";
-static char __pyx_k_129[] = "Inside edges of preceding subphrase are not tight";
-static char __pyx_k_130[] = "Inside edges of following subphrase are not tight";
-static char __pyx_k_131[] = "Subphrase [%d, %d] failed integrity check";
-static char __pyx_k_132[] = "Didn't extract anything from [%d, %d] -> [%d, %d]";
-static char __pyx_k_133[] = "Unable to extract basic phrase";
-static char __pyx_k_136[] = "/Users/vchahun/Sandbox/cdec/python/src/sa/_sa.pyx";
-static char __pyx_k_137[] = "cdec.sa";
-static char __pyx_k_141[] = "/Users/vchahun/Sandbox/cdec/python/src/sa/sym.pxi";
-static char __pyx_k_142[] = "*EPS*";
+static char __pyx_k_102[] = "Sampling strategy: uniform, max sample size = %d";
+static char __pyx_k_103[] = "Sampling strategy: no sampling";
+static char __pyx_k_105[] = "require_aligned_terminal";
+static char __pyx_k_106[] = "require_aligned_chunks";
+static char __pyx_k_107[] = "[X]";
+static char __pyx_k_108[] = "Must specify an alignment object";
+static char __pyx_k_110[] = "Reading precomputed data from file %s... ";
+static char __pyx_k_111[] = "Precomputation done with max nonterminals %d, decoder uses %d";
+static char __pyx_k_112[] = "Precomputation done with max terminals %d, decoder uses %d";
+static char __pyx_k_113[] = "Precomputation done with max initial size %d, decoder uses %d";
+static char __pyx_k_114[] = "Precomputation done with min gap size %d, decoder uses %d";
+static char __pyx_k_115[] = "Converting %d hash keys on precomputed inverted index... ";
+static char __pyx_k_116[] = "Converting %d hash keys on precomputed collocations... ";
+static char __pyx_k_117[] = "Processing precomputations took %f seconds";
+static char __pyx_k_118[] = "{";
+  static char __pyx_k_119[] = "(";
+static char __pyx_k_120[] = "}";
+static char __pyx_k_121[] = "get_precomputed_collocation";
+static char __pyx_k_122[] = "double binary";
+static char __pyx_k_123[] = "Keyword trie error";
+static char __pyx_k_125[] = "get_all_nodes_isteps_away";
+static char __pyx_k_126[] = "Total time for rule lookup, extraction, and scoring = %f seconds";
+static char __pyx_k_127[] = "    Extract time = %f seconds";
+static char __pyx_k_128[] = "No aligned terminals";
+static char __pyx_k_129[] = "Unaligned chunk";
+static char __pyx_k_130[] = "Gaps are not tight phrases";
+static char __pyx_k_131[] = "Inside edges of preceding subphrase are not tight";
+static char __pyx_k_132[] = "Inside edges of following subphrase are not tight";
+static char __pyx_k_133[] = "Subphrase [%d, %d] failed integrity check";
+static char __pyx_k_134[] = "Didn't extract anything from [%d, %d] -> [%d, %d]";
+static char __pyx_k_135[] = "Unable to extract basic phrase";
+static char __pyx_k_138[] = "/Users/vchahun/Sandbox/cdec/python/src/sa/_sa.pyx";
+static char __pyx_k_139[] = "cdec.sa";
+static char __pyx_k_143[] = "/Users/vchahun/Sandbox/cdec/python/src/sa/sym.pxi";
+static char __pyx_k_144[] = "*EPS*";
 static char __pyx_k__gc[] = "gc";
 static char __pyx_k__sa[] = "sa";
 static char __pyx_k___sa[] = "_sa";
@@ -2272,6 +2494,7 @@ static char __pyx_k__low[] = "low";
 static char __pyx_k__map[] = "map";
 static char __pyx_k__pad[] = "pad";
 static char __pyx_k__res[] = "res";
+static char __pyx_k__set[] = "set";
 static char __pyx_k__zip[] = "zip";
 static char __pyx_k__NULL[] = "NULL";
 static char __pyx_k__dist[] = "dist";
@@ -2279,6 +2502,7 @@ static char __pyx_k__gzip[] = "gzip";
 static char __pyx_k__high[] = "high";
 static char __pyx_k__info[] = "info";
 static char __pyx_k__join[] = "join";
+static char __pyx_k__name[] = "name";
 static char __pyx_k__open[] = "open";
 static char __pyx_k__seek[] = "seek";
 static char __pyx_k__side[] = "side";
@@ -2301,6 +2525,7 @@ static char __pyx_k__split[] = "split";
 static char __pyx_k__start[] = "start";
 static char __pyx_k__stats[] = "stats";
 static char __pyx_k__toMap[] = "toMap";
+static char __pyx_k__value[] = "value";
 static char __pyx_k__words[] = "words";
 static char __pyx_k__write[] = "write";
 static char __pyx_k__earray[] = "earray";
@@ -2310,18 +2535,21 @@ static char __pyx_k__get_id[] = "get_id";
 static char __pyx_k__insert[] = "insert";
 static char __pyx_k__logger[] = "logger";
 static char __pyx_k__lookup[] = "lookup";
-static char __pyx_k__models[] = "models";
 static char __pyx_k__offset[] = "offset";
 static char __pyx_k__phrase[] = "phrase";
 static char __pyx_k__q3sort[] = "q3sort";
 static char __pyx_k__sa_low[] = "sa_low";
 static char __pyx_k__sample[] = "sample";
 static char __pyx_k__sarray[] = "sarray";
+static char __pyx_k__scorer[] = "scorer";
 static char __pyx_k__scores[] = "scores";
 static char __pyx_k__sorted[] = "sorted";
 static char __pyx_k__source[] = "source";
 static char __pyx_k__string[] = "string";
+static char __pyx_k__ttable[] = "ttable";
 static char __pyx_k__unlink[] = "unlink";
+static char __pyx_k__CountEF[] = "CountEF";
+static char __pyx_k__Counter[] = "Counter";
 static char __pyx_k__advance[] = "advance";
 static char __pyx_k__arr_low[] = "arr_low";
 static char __pyx_k__collect[] = "collect";
@@ -2334,8 +2562,10 @@ static char __pyx_k__sa_high[] = "sa_high";
 static char __pyx_k__sampler[] = "sampler";
 static char __pyx_k__spanlen[] = "spanlen";
 static char __pyx_k__GzipFile[] = "GzipFile";
+static char __pyx_k__MAXSCORE[] = "MAXSCORE";
 static char __pyx_k____exit__[] = "__exit__";
 static char __pyx_k____main__[] = "__main__";
+static char __pyx_k____name__[] = "__name__";
 static char __pyx_k____test__[] = "__test__";
 static char __pyx_k___columns[] = "_columns";
 static char __pyx_k__arr_high[] = "arr_high";
@@ -2356,6 +2586,8 @@ static char __pyx_k__ru_utime[] = "ru_utime";
 static char __pyx_k__shortest[] = "shortest";
 static char __pyx_k__terminal[] = "terminal";
 static char __pyx_k__Exception[] = "Exception";
+static char __pyx_k__INCREMENT[] = "INCREMENT";
+static char __pyx_k__NFEATURES[] = "NFEATURES";
 static char __pyx_k__TypeError[] = "TypeError";
 static char __pyx_k____enter__[] = "__enter__";
 static char __pyx_k__alignment[] = "alignment";
@@ -2364,6 +2596,7 @@ static char __pyx_k__from_data[] = "from_data";
 static char __pyx_k__from_text[] = "from_text";
 static char __pyx_k__getLogger[] = "getLogger";
 static char __pyx_k__getSentId[] = "getSentId";
+static char __pyx_k__get_score[] = "get_score";
 static char __pyx_k__getrusage[] = "getrusage";
 static char __pyx_k__increment[] = "increment";
 static char __pyx_k__iteritems[] = "iteritems";
@@ -2372,17 +2605,18 @@ static char __pyx_k__reachable[] = "reachable";
 static char __pyx_k__read_text[] = "read_text";
 static char __pyx_k__use_index[] = "use_index";
 static char __pyx_k__IndexError[] = "IndexError";
-static char __pyx_k__ValueError[] = "ValueError";
+static char __pyx_k__alignments[] = "alignments";
 static char __pyx_k__from_stats[] = "from_stats";
 static char __pyx_k__getSentPos[] = "getSentPos";
 static char __pyx_k__max_chunks[] = "max_chunks";
 static char __pyx_k__max_length[] = "max_length";
 static char __pyx_k__precompute[] = "precompute";
-static char __pyx_k__setdefault[] = "setdefault";
 static char __pyx_k__write_text[] = "write_text";
 static char __pyx_k__END_OF_FILE[] = "END_OF_FILE";
 static char __pyx_k__END_OF_LINE[] = "END_OF_LINE";
 static char __pyx_k__RUSAGE_SELF[] = "RUSAGE_SELF";
+static char __pyx_k__collections[] = "collections";
+static char __pyx_k__defaultdict[] = "defaultdict";
 static char __pyx_k__from_binary[] = "from_binary";
 static char __pyx_k__initial_len[] = "initial_len";
 static char __pyx_k__next_states[] = "next_states";
@@ -2392,15 +2626,21 @@ static char __pyx_k__read_bitext[] = "read_bitext";
 static char __pyx_k__sample_size[] = "sample_size";
 static char __pyx_k__suffix_link[] = "suffix_link";
 static char __pyx_k__use_sent_id[] = "use_sent_id";
+static char __pyx_k__IsSingletonF[] = "IsSingletonF";
+static char __pyx_k__SampleCountF[] = "SampleCountF";
 static char __pyx_k___doquicksort[] = "_doquicksort";
 static char __pyx_k__gzip_or_text[] = "gzip_or_text";
 static char __pyx_k__min_gap_size[] = "min_gap_size";
+static char __pyx_k__IsSingletonFE[] = "IsSingletonFE";
+static char __pyx_k__MaxLexEgivenF[] = "MaxLexEgivenF";
+static char __pyx_k__MaxLexFgivenE[] = "MaxLexFgivenE";
 static char __pyx_k__StopIteration[] = "StopIteration";
 static char __pyx_k__alphabet_size[] = "alphabet_size";
 static char __pyx_k__tight_phrases[] = "tight_phrases";
 static char __pyx_k__pattern2phrase[] = "pattern2phrase";
 static char __pyx_k__read_text_data[] = "read_text_data";
 static char __pyx_k__sym_fromstring[] = "sym_fromstring";
+static char __pyx_k__EgivenFCoherent[] = "EgivenFCoherent";
 static char __pyx_k__by_slack_factor[] = "by_slack_factor";
 static char __pyx_k__get_next_states[] = "get_next_states";
 static char __pyx_k__num_subpatterns[] = "num_subpatterns";
@@ -2409,6 +2649,7 @@ static char __pyx_k__precompute_file[] = "precompute_file";
 static char __pyx_k__precompute_rank[] = "precompute_rank";
 static char __pyx_k__use_baeza_yates[] = "use_baeza_yates";
 static char __pyx_k__word_alignments[] = "word_alignments";
+static char __pyx_k__INITIAL_CAPACITY[] = "INITIAL_CAPACITY";
 static char __pyx_k__max_initial_size[] = "max_initial_size";
 static char __pyx_k__max_nonterminals[] = "max_nonterminals";
 static char __pyx_k__reachable_buffer[] = "reachable_buffer";
@@ -2418,13 +2659,11 @@ static char __pyx_k__max_target_length[] = "max_target_length";
 static char __pyx_k__train_min_gap_size[] = "train_min_gap_size";
 static char __pyx_k__pattern2phrase_plus[] = "pattern2phrase_plus";
 static PyObject *__pyx_kp_s_1;
-static PyObject *__pyx_kp_s_100;
-static PyObject *__pyx_kp_s_101;
-static PyObject *__pyx_n_s_103;
-static PyObject *__pyx_n_s_104;
-static PyObject *__pyx_kp_s_106;
+static PyObject *__pyx_kp_s_102;
+static PyObject *__pyx_kp_s_103;
+static PyObject *__pyx_n_s_105;
+static PyObject *__pyx_n_s_106;
 static PyObject *__pyx_kp_s_108;
-static PyObject *__pyx_kp_s_109;
 static PyObject *__pyx_kp_s_110;
 static PyObject *__pyx_kp_s_111;
 static PyObject *__pyx_kp_s_112;
@@ -2434,12 +2673,12 @@ static PyObject *__pyx_kp_s_115;
 static PyObject *__pyx_kp_s_116;
 static PyObject *__pyx_kp_s_117;
 static PyObject *__pyx_kp_s_118;
-static PyObject *__pyx_n_s_119;
+static PyObject *__pyx_kp_s_119;
 static PyObject *__pyx_kp_s_120;
-static PyObject *__pyx_kp_s_121;
-static PyObject *__pyx_n_s_123;
-static PyObject *__pyx_kp_s_124;
-static PyObject *__pyx_kp_s_125;
+static PyObject *__pyx_n_s_121;
+static PyObject *__pyx_kp_s_122;
+static PyObject *__pyx_kp_s_123;
+static PyObject *__pyx_n_s_125;
 static PyObject *__pyx_kp_s_126;
 static PyObject *__pyx_kp_s_127;
 static PyObject *__pyx_kp_s_128;
@@ -2449,11 +2688,13 @@ static PyObject *__pyx_kp_s_130;
 static PyObject *__pyx_kp_s_131;
 static PyObject *__pyx_kp_s_132;
 static PyObject *__pyx_kp_s_133;
-static PyObject *__pyx_kp_s_136;
-static PyObject *__pyx_kp_s_137;
+static PyObject *__pyx_kp_s_134;
+static PyObject *__pyx_kp_s_135;
+static PyObject *__pyx_kp_s_138;
+static PyObject *__pyx_kp_s_139;
 static PyObject *__pyx_kp_s_14;
-static PyObject *__pyx_kp_s_141;
-static PyObject *__pyx_kp_s_142;
+static PyObject *__pyx_kp_s_143;
+static PyObject *__pyx_kp_s_144;
 static PyObject *__pyx_kp_s_18;
 static PyObject *__pyx_kp_s_2;
 static PyObject *__pyx_kp_s_21;
@@ -2503,27 +2744,41 @@ static PyObject *__pyx_kp_s_91;
 static PyObject *__pyx_kp_s_92;
 static PyObject *__pyx_kp_s_94;
 static PyObject *__pyx_kp_s_95;
+static PyObject *__pyx_kp_s_99;
 static PyObject *__pyx_kp_s__0;
 static PyObject *__pyx_kp_s__1;
+static PyObject *__pyx_n_s__CountEF;
+static PyObject *__pyx_n_s__Counter;
 static PyObject *__pyx_n_s__END_OF_FILE;
 static PyObject *__pyx_n_s__END_OF_LINE;
+static PyObject *__pyx_n_s__EgivenFCoherent;
 static PyObject *__pyx_n_s__Exception;
 static PyObject *__pyx_n_s__GzipFile;
+static PyObject *__pyx_n_s__INCREMENT;
+static PyObject *__pyx_n_s__INITIAL_CAPACITY;
 static PyObject *__pyx_n_s__IndexError;
+static PyObject *__pyx_n_s__IsSingletonF;
+static PyObject *__pyx_n_s__IsSingletonFE;
+static PyObject *__pyx_n_s__MAXSCORE;
+static PyObject *__pyx_n_s__MaxLexEgivenF;
+static PyObject *__pyx_n_s__MaxLexFgivenE;
+static PyObject *__pyx_n_s__NFEATURES;
 static PyObject *__pyx_n_s__NULL;
 static PyObject *__pyx_n_s__RUSAGE_SELF;
+static PyObject *__pyx_n_s__SampleCountF;
 static PyObject *__pyx_n_s__StopIteration;
 static PyObject *__pyx_n_s__TypeError;
-static PyObject *__pyx_n_s__ValueError;
 static PyObject *__pyx_n_s____enter__;
 static PyObject *__pyx_n_s____exit__;
 static PyObject *__pyx_n_s____main__;
+static PyObject *__pyx_n_s____name__;
 static PyObject *__pyx_n_s____test__;
 static PyObject *__pyx_n_s___columns;
 static PyObject *__pyx_n_s___doquicksort;
 static PyObject *__pyx_n_s___sa;
 static PyObject *__pyx_n_s__advance;
 static PyObject *__pyx_n_s__alignment;
+static PyObject *__pyx_n_s__alignments;
 static PyObject *__pyx_n_s__alphabet_size;
 static PyObject *__pyx_n_s__arity;
 static PyObject *__pyx_n_s__arr;
@@ -2535,8 +2790,10 @@ static PyObject *__pyx_n_s__children;
 static PyObject *__pyx_n_s__cmp;
 static PyObject *__pyx_n_s__col;
 static PyObject *__pyx_n_s__collect;
+static PyObject *__pyx_n_s__collections;
 static PyObject *__pyx_n_s__curr_idx;
 static PyObject *__pyx_n_s__debug;
+static PyObject *__pyx_n_s__defaultdict;
 static PyObject *__pyx_n_s__dist;
 static PyObject *__pyx_n_s__e;
 static PyObject *__pyx_n_s__earray;
@@ -2565,6 +2822,7 @@ static PyObject *__pyx_n_s__get_e_id;
 static PyObject *__pyx_n_s__get_f_id;
 static PyObject *__pyx_n_s__get_id;
 static PyObject *__pyx_n_s__get_next_states;
+static PyObject *__pyx_n_s__get_score;
 static PyObject *__pyx_n_s__get_word;
 static PyObject *__pyx_n_s__getchunk;
 static PyObject *__pyx_n_s__getrusage;
@@ -2599,7 +2857,7 @@ static PyObject *__pyx_n_s__max_target_length;
 static PyObject *__pyx_n_s__merge;
 static PyObject *__pyx_n_s__min_dist;
 static PyObject *__pyx_n_s__min_gap_size;
-static PyObject *__pyx_n_s__models;
+static PyObject *__pyx_n_s__name;
 static PyObject *__pyx_n_s__next_states;
 static PyObject *__pyx_n_s__num_subpatterns;
 static PyObject *__pyx_n_s__offset;
@@ -2635,9 +2893,10 @@ static PyObject *__pyx_n_s__sample;
 static PyObject *__pyx_n_s__sample_size;
 static PyObject *__pyx_n_s__sampler;
 static PyObject *__pyx_n_s__sarray;
+static PyObject *__pyx_n_s__scorer;
 static PyObject *__pyx_n_s__scores;
 static PyObject *__pyx_n_s__seek;
-static PyObject *__pyx_n_s__setdefault;
+static PyObject *__pyx_n_s__set;
 static PyObject *__pyx_n_s__shortest;
 static PyObject *__pyx_n_s__side;
 static PyObject *__pyx_n_s__size;
@@ -2656,11 +2915,13 @@ static PyObject *__pyx_n_s__terminal;
 static PyObject *__pyx_n_s__tight_phrases;
 static PyObject *__pyx_n_s__toMap;
 static PyObject *__pyx_n_s__train_min_gap_size;
+static PyObject *__pyx_n_s__ttable;
 static PyObject *__pyx_n_s__unlink;
 static PyObject *__pyx_n_s__use_baeza_yates;
 static PyObject *__pyx_n_s__use_collocations;
 static PyObject *__pyx_n_s__use_index;
 static PyObject *__pyx_n_s__use_sent_id;
+static PyObject *__pyx_n_s__value;
 static PyObject *__pyx_n_s__w;
 static PyObject *__pyx_n_s__warn;
 static PyObject *__pyx_n_s__word;
@@ -2672,14 +2933,19 @@ static PyObject *__pyx_n_s__zip;
 static PyObject *__pyx_int_0;
 static PyObject *__pyx_int_1;
 static PyObject *__pyx_int_2;
+static PyObject *__pyx_int_3;
+static PyObject *__pyx_int_4;
 static PyObject *__pyx_int_5;
+static PyObject *__pyx_int_6;
+static PyObject *__pyx_int_7;
 static PyObject *__pyx_int_neg_1;
 static PyObject *__pyx_int_10;
 static PyObject *__pyx_int_20;
+static PyObject *__pyx_int_neg_99;
 static PyObject *__pyx_int_1000;
 static PyObject *__pyx_int_65536;
 static PyObject *__pyx_k_41;
-static PyObject *__pyx_k_99;
+static PyObject *__pyx_k_101;
 static PyObject *__pyx_k_tuple_10;
 static PyObject *__pyx_k_tuple_11;
 static PyObject *__pyx_k_tuple_12;
@@ -2725,14 +2991,15 @@ static PyObject *__pyx_k_tuple_93;
 static PyObject *__pyx_k_tuple_96;
 static PyObject *__pyx_k_tuple_97;
 static PyObject *__pyx_k_tuple_98;
-static PyObject *__pyx_k_tuple_102;
-static PyObject *__pyx_k_tuple_107;
-static PyObject *__pyx_k_tuple_122;
-static PyObject *__pyx_k_tuple_134;
-static PyObject *__pyx_k_tuple_138;
-static PyObject *__pyx_k_tuple_139;
-static PyObject *__pyx_k_codeobj_135;
-static PyObject *__pyx_k_codeobj_140;
+static PyObject *__pyx_k_tuple_100;
+static PyObject *__pyx_k_tuple_104;
+static PyObject *__pyx_k_tuple_109;
+static PyObject *__pyx_k_tuple_124;
+static PyObject *__pyx_k_tuple_136;
+static PyObject *__pyx_k_tuple_140;
+static PyObject *__pyx_k_tuple_141;
+static PyObject *__pyx_k_codeobj_137;
+static PyObject *__pyx_k_codeobj_142;
 
 /* "_sa.pyx":5
  * import gzip
@@ -3002,7 +3269,7 @@ static int __pyx_pw_3_sa_9FloatList_1__cinit__(PyObject *__pyx_v_self, PyObject
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "__cinit__") < 0)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 15; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "__cinit__") < 0)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 11; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else {
       switch (PyTuple_GET_SIZE(__pyx_args)) {
@@ -3014,24 +3281,24 @@ static int __pyx_pw_3_sa_9FloatList_1__cinit__(PyObject *__pyx_v_self, PyObject
       }
     }
     if (values[0]) {
-      __pyx_v_size = __Pyx_PyInt_AsInt(values[0]); if (unlikely((__pyx_v_size == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 15; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+      __pyx_v_size = __Pyx_PyInt_AsInt(values[0]); if (unlikely((__pyx_v_size == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 11; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
     } else {
       __pyx_v_size = ((int)0);
     }
     if (values[1]) {
-      __pyx_v_increment = __Pyx_PyInt_AsInt(values[1]); if (unlikely((__pyx_v_increment == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 15; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+      __pyx_v_increment = __Pyx_PyInt_AsInt(values[1]); if (unlikely((__pyx_v_increment == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 11; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
     } else {
       __pyx_v_increment = ((int)1);
     }
     if (values[2]) {
-      __pyx_v_initial_len = __Pyx_PyInt_AsInt(values[2]); if (unlikely((__pyx_v_initial_len == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 15; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+      __pyx_v_initial_len = __Pyx_PyInt_AsInt(values[2]); if (unlikely((__pyx_v_initial_len == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 11; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
     } else {
       __pyx_v_initial_len = ((int)0);
     }
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("__cinit__", 0, 0, 3, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[1]; __pyx_lineno = 15; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+  __Pyx_RaiseArgtupleInvalid("__cinit__", 0, 0, 3, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[1]; __pyx_lineno = 11; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_AddTraceback("_sa.FloatList.__cinit__", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -3042,8 +3309,8 @@ static int __pyx_pw_3_sa_9FloatList_1__cinit__(PyObject *__pyx_v_self, PyObject
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":15
- *     cdef float* arr
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":11
+ * cdef class FloatList:
  * 
  *     def __cinit__(self, int size=0, int increment=1, int initial_len=0):             # <<<<<<<<<<<<<<
  *         if initial_len > size:
@@ -3056,7 +3323,7 @@ static int __pyx_pf_3_sa_9FloatList___cinit__(struct __pyx_obj_3_sa_FloatList *_
   int __pyx_t_1;
   __Pyx_RefNannySetupContext("__cinit__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":16
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":12
  * 
  *     def __cinit__(self, int size=0, int increment=1, int initial_len=0):
  *         if initial_len > size:             # <<<<<<<<<<<<<<
@@ -3066,7 +3333,7 @@ static int __pyx_pf_3_sa_9FloatList___cinit__(struct __pyx_obj_3_sa_FloatList *_
   __pyx_t_1 = (__pyx_v_initial_len > __pyx_v_size);
   if (__pyx_t_1) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":17
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":13
  *     def __cinit__(self, int size=0, int increment=1, int initial_len=0):
  *         if initial_len > size:
  *             size = initial_len             # <<<<<<<<<<<<<<
@@ -3078,7 +3345,7 @@ static int __pyx_pf_3_sa_9FloatList___cinit__(struct __pyx_obj_3_sa_FloatList *_
   }
   __pyx_L3:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":18
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":14
  *         if initial_len > size:
  *             size = initial_len
  *         self.size = size             # <<<<<<<<<<<<<<
@@ -3087,7 +3354,7 @@ static int __pyx_pf_3_sa_9FloatList___cinit__(struct __pyx_obj_3_sa_FloatList *_
  */
   __pyx_v_self->size = __pyx_v_size;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":19
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":15
  *             size = initial_len
  *         self.size = size
  *         self.increment = increment             # <<<<<<<<<<<<<<
@@ -3096,7 +3363,7 @@ static int __pyx_pf_3_sa_9FloatList___cinit__(struct __pyx_obj_3_sa_FloatList *_
  */
   __pyx_v_self->increment = __pyx_v_increment;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":20
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":16
  *         self.size = size
  *         self.increment = increment
  *         self.len = initial_len             # <<<<<<<<<<<<<<
@@ -3105,7 +3372,7 @@ static int __pyx_pf_3_sa_9FloatList___cinit__(struct __pyx_obj_3_sa_FloatList *_
  */
   __pyx_v_self->len = __pyx_v_initial_len;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":21
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":17
  *         self.increment = increment
  *         self.len = initial_len
  *         self.arr = <float*> malloc(size*sizeof(float))             # <<<<<<<<<<<<<<
@@ -3114,7 +3381,7 @@ static int __pyx_pf_3_sa_9FloatList___cinit__(struct __pyx_obj_3_sa_FloatList *_
  */
   __pyx_v_self->arr = ((float *)malloc((__pyx_v_size * (sizeof(float)))));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":22
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":18
  *         self.len = initial_len
  *         self.arr = <float*> malloc(size*sizeof(float))
  *         memset(self.arr, 0, initial_len*sizeof(float))             # <<<<<<<<<<<<<<
@@ -3137,7 +3404,7 @@ static void __pyx_pw_3_sa_9FloatList_3__dealloc__(PyObject *__pyx_v_self) {
   __Pyx_RefNannyFinishContext();
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":24
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":20
  *         memset(self.arr, 0, initial_len*sizeof(float))
  * 
  *     def __dealloc__(self):             # <<<<<<<<<<<<<<
@@ -3149,7 +3416,7 @@ static void __pyx_pf_3_sa_9FloatList_2__dealloc__(struct __pyx_obj_3_sa_FloatLis
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__dealloc__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":25
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":21
  * 
  *     def __dealloc__(self):
  *         free(self.arr)             # <<<<<<<<<<<<<<
@@ -3172,7 +3439,7 @@ static PyObject *__pyx_pw_3_sa_9FloatList_5__getitem__(PyObject *__pyx_v_self, P
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":27
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":23
  *         free(self.arr)
  * 
  *     def __getitem__(self, i):             # <<<<<<<<<<<<<<
@@ -3195,7 +3462,7 @@ static PyObject *__pyx_pf_3_sa_9FloatList_4__getitem__(struct __pyx_obj_3_sa_Flo
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__getitem__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":28
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":24
  * 
  *     def __getitem__(self, i):
  *         j = i             # <<<<<<<<<<<<<<
@@ -3205,29 +3472,29 @@ static PyObject *__pyx_pf_3_sa_9FloatList_4__getitem__(struct __pyx_obj_3_sa_Flo
   __Pyx_INCREF(__pyx_v_i);
   __pyx_v_j = __pyx_v_i;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":29
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":25
  *     def __getitem__(self, i):
  *         j = i
  *         if i<0:             # <<<<<<<<<<<<<<
  *             j = self.len + i
  *         if j<0 or j>=self.len:
  */
-  __pyx_t_1 = PyObject_RichCompare(__pyx_v_i, __pyx_int_0, Py_LT); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 29; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_RichCompare(__pyx_v_i, __pyx_int_0, Py_LT); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 25; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_2 < 0)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 29; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_2 < 0)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 25; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   if (__pyx_t_2) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":30
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":26
  *         j = i
  *         if i<0:
  *             j = self.len + i             # <<<<<<<<<<<<<<
  *         if j<0 or j>=self.len:
  *             raise IndexError("Requested index %d of %d-length FloatList" % (i, self.len))
  */
-    __pyx_t_1 = PyInt_FromLong(__pyx_v_self->len); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 30; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyInt_FromLong(__pyx_v_self->len); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 26; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_3 = PyNumber_Add(__pyx_t_1, __pyx_v_i); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 30; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyNumber_Add(__pyx_t_1, __pyx_v_i); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 26; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     __Pyx_DECREF(__pyx_v_j);
@@ -3237,24 +3504,24 @@ static PyObject *__pyx_pf_3_sa_9FloatList_4__getitem__(struct __pyx_obj_3_sa_Flo
   }
   __pyx_L3:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":31
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":27
  *         if i<0:
  *             j = self.len + i
  *         if j<0 or j>=self.len:             # <<<<<<<<<<<<<<
  *             raise IndexError("Requested index %d of %d-length FloatList" % (i, self.len))
  *         return self.arr[j]
  */
-  __pyx_t_3 = PyObject_RichCompare(__pyx_v_j, __pyx_int_0, Py_LT); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 31; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_RichCompare(__pyx_v_j, __pyx_int_0, Py_LT); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 27; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
-  __pyx_t_2 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_2 < 0)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 31; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_2 < 0)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 27; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   if (!__pyx_t_2) {
-    __pyx_t_3 = PyInt_FromLong(__pyx_v_self->len); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 31; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyInt_FromLong(__pyx_v_self->len); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 27; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_1 = PyObject_RichCompare(__pyx_v_j, __pyx_t_3, Py_GE); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 31; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyObject_RichCompare(__pyx_v_j, __pyx_t_3, Py_GE); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 27; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 31; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 27; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     __pyx_t_5 = __pyx_t_4;
   } else {
@@ -3262,16 +3529,16 @@ static PyObject *__pyx_pf_3_sa_9FloatList_4__getitem__(struct __pyx_obj_3_sa_Flo
   }
   if (__pyx_t_5) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":32
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":28
  *             j = self.len + i
  *         if j<0 or j>=self.len:
  *             raise IndexError("Requested index %d of %d-length FloatList" % (i, self.len))             # <<<<<<<<<<<<<<
  *         return self.arr[j]
  * 
  */
-    __pyx_t_1 = PyInt_FromLong(__pyx_v_self->len); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 32; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyInt_FromLong(__pyx_v_self->len); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 28; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 32; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 28; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_INCREF(__pyx_v_i);
     PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_v_i);
@@ -3279,25 +3546,25 @@ static PyObject *__pyx_pf_3_sa_9FloatList_4__getitem__(struct __pyx_obj_3_sa_Flo
     PyTuple_SET_ITEM(__pyx_t_3, 1, __pyx_t_1);
     __Pyx_GIVEREF(__pyx_t_1);
     __pyx_t_1 = 0;
-    __pyx_t_1 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_2), ((PyObject *)__pyx_t_3)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 32; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_2), ((PyObject *)__pyx_t_3)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 28; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(((PyObject *)__pyx_t_1));
     __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
-    __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 32; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 28; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     PyTuple_SET_ITEM(__pyx_t_3, 0, ((PyObject *)__pyx_t_1));
     __Pyx_GIVEREF(((PyObject *)__pyx_t_1));
     __pyx_t_1 = 0;
-    __pyx_t_1 = PyObject_Call(__pyx_builtin_IndexError, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 32; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyObject_Call(__pyx_builtin_IndexError, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 28; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
     __Pyx_Raise(__pyx_t_1, 0, 0, 0);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-    {__pyx_filename = __pyx_f[1]; __pyx_lineno = 32; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    {__pyx_filename = __pyx_f[1]; __pyx_lineno = 28; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     goto __pyx_L4;
   }
   __pyx_L4:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":33
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":29
  *         if j<0 or j>=self.len:
  *             raise IndexError("Requested index %d of %d-length FloatList" % (i, self.len))
  *         return self.arr[j]             # <<<<<<<<<<<<<<
@@ -3305,8 +3572,8 @@ static PyObject *__pyx_pf_3_sa_9FloatList_4__getitem__(struct __pyx_obj_3_sa_Flo
  *     cdef void set(self, int i, float v):
  */
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_6 = __Pyx_PyIndex_AsSsize_t(__pyx_v_j); if (unlikely((__pyx_t_6 == (Py_ssize_t)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 33; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_t_1 = PyFloat_FromDouble((__pyx_v_self->arr[__pyx_t_6])); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 33; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_6 = __Pyx_PyIndex_AsSsize_t(__pyx_v_j); if (unlikely((__pyx_t_6 == (Py_ssize_t)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 29; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyFloat_FromDouble((__pyx_v_self->arr[__pyx_t_6])); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 29; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_r = __pyx_t_1;
   __pyx_t_1 = 0;
@@ -3326,7 +3593,7 @@ static PyObject *__pyx_pf_3_sa_9FloatList_4__getitem__(struct __pyx_obj_3_sa_Flo
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":35
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":31
  *         return self.arr[j]
  * 
  *     cdef void set(self, int i, float v):             # <<<<<<<<<<<<<<
@@ -3348,7 +3615,7 @@ static void __pyx_f_3_sa_9FloatList_set(struct __pyx_obj_3_sa_FloatList *__pyx_v
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("set", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":36
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":32
  * 
  *     cdef void set(self, int i, float v):
  *         j = i             # <<<<<<<<<<<<<<
@@ -3357,7 +3624,7 @@ static void __pyx_f_3_sa_9FloatList_set(struct __pyx_obj_3_sa_FloatList *__pyx_v
  */
   __pyx_v_j = __pyx_v_i;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":37
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":33
  *     cdef void set(self, int i, float v):
  *         j = i
  *         if i<0:             # <<<<<<<<<<<<<<
@@ -3367,7 +3634,7 @@ static void __pyx_f_3_sa_9FloatList_set(struct __pyx_obj_3_sa_FloatList *__pyx_v
   __pyx_t_1 = (__pyx_v_i < 0);
   if (__pyx_t_1) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":38
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":34
  *         j = i
  *         if i<0:
  *             j = self.len + i             # <<<<<<<<<<<<<<
@@ -3379,7 +3646,7 @@ static void __pyx_f_3_sa_9FloatList_set(struct __pyx_obj_3_sa_FloatList *__pyx_v
   }
   __pyx_L3:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":39
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":35
  *         if i<0:
  *             j = self.len + i
  *         if j<0 or j>=self.len:             # <<<<<<<<<<<<<<
@@ -3395,18 +3662,18 @@ static void __pyx_f_3_sa_9FloatList_set(struct __pyx_obj_3_sa_FloatList *__pyx_v
   }
   if (__pyx_t_3) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":40
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":36
  *             j = self.len + i
  *         if j<0 or j>=self.len:
  *             raise IndexError("Requested index %d of %d-length FloatList" % (i, self.len))             # <<<<<<<<<<<<<<
  *         self.arr[j] = v
  * 
  */
-    __pyx_t_4 = PyInt_FromLong(__pyx_v_i); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 40; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyInt_FromLong(__pyx_v_i); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 36; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_5 = PyInt_FromLong(__pyx_v_self->len); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 40; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyInt_FromLong(__pyx_v_self->len); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 36; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
-    __pyx_t_6 = PyTuple_New(2); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 40; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = PyTuple_New(2); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 36; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
     PyTuple_SET_ITEM(__pyx_t_6, 0, __pyx_t_4);
     __Pyx_GIVEREF(__pyx_t_4);
@@ -3414,25 +3681,25 @@ static void __pyx_f_3_sa_9FloatList_set(struct __pyx_obj_3_sa_FloatList *__pyx_v
     __Pyx_GIVEREF(__pyx_t_5);
     __pyx_t_4 = 0;
     __pyx_t_5 = 0;
-    __pyx_t_5 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_2), ((PyObject *)__pyx_t_6)); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 40; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_2), ((PyObject *)__pyx_t_6)); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 36; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(((PyObject *)__pyx_t_5));
     __Pyx_DECREF(((PyObject *)__pyx_t_6)); __pyx_t_6 = 0;
-    __pyx_t_6 = PyTuple_New(1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 40; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = PyTuple_New(1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 36; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
     PyTuple_SET_ITEM(__pyx_t_6, 0, ((PyObject *)__pyx_t_5));
     __Pyx_GIVEREF(((PyObject *)__pyx_t_5));
     __pyx_t_5 = 0;
-    __pyx_t_5 = PyObject_Call(__pyx_builtin_IndexError, ((PyObject *)__pyx_t_6), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 40; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyObject_Call(__pyx_builtin_IndexError, ((PyObject *)__pyx_t_6), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 36; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
     __Pyx_DECREF(((PyObject *)__pyx_t_6)); __pyx_t_6 = 0;
     __Pyx_Raise(__pyx_t_5, 0, 0, 0);
     __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-    {__pyx_filename = __pyx_f[1]; __pyx_lineno = 40; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    {__pyx_filename = __pyx_f[1]; __pyx_lineno = 36; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     goto __pyx_L4;
   }
   __pyx_L4:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":41
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":37
  *         if j<0 or j>=self.len:
  *             raise IndexError("Requested index %d of %d-length FloatList" % (i, self.len))
  *         self.arr[j] = v             # <<<<<<<<<<<<<<
@@ -3462,7 +3729,7 @@ static int __pyx_pw_3_sa_9FloatList_7__setitem__(PyObject *__pyx_v_self, PyObjec
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":43
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":39
  *         self.arr[j] = v
  * 
  *     def __setitem__(self, i, val):             # <<<<<<<<<<<<<<
@@ -3480,15 +3747,15 @@ static int __pyx_pf_3_sa_9FloatList_6__setitem__(struct __pyx_obj_3_sa_FloatList
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__setitem__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":44
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":40
  * 
  *     def __setitem__(self, i, val):
  *         self.set(i, val)             # <<<<<<<<<<<<<<
  * 
  *     def __len__(self):
  */
-  __pyx_t_1 = __Pyx_PyInt_AsInt(__pyx_v_i); if (unlikely((__pyx_t_1 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 44; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_t_2 = __pyx_PyFloat_AsFloat(__pyx_v_val); if (unlikely((__pyx_t_2 == (float)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 44; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_PyInt_AsInt(__pyx_v_i); if (unlikely((__pyx_t_1 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 40; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = __pyx_PyFloat_AsFloat(__pyx_v_val); if (unlikely((__pyx_t_2 == (float)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 40; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   ((struct __pyx_vtabstruct_3_sa_FloatList *)__pyx_v_self->__pyx_vtab)->set(__pyx_v_self, __pyx_t_1, __pyx_t_2);
 
   __pyx_r = 0;
@@ -3512,7 +3779,7 @@ static Py_ssize_t __pyx_pw_3_sa_9FloatList_9__len__(PyObject *__pyx_v_self) {
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":46
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":42
  *         self.set(i, val)
  * 
  *     def __len__(self):             # <<<<<<<<<<<<<<
@@ -3525,7 +3792,7 @@ static Py_ssize_t __pyx_pf_3_sa_9FloatList_8__len__(struct __pyx_obj_3_sa_FloatL
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__len__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":47
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":43
  * 
  *     def __len__(self):
  *         return self.len             # <<<<<<<<<<<<<<
@@ -3549,7 +3816,7 @@ static PyObject *__pyx_pw_3_sa_9FloatList_11append(PyObject *__pyx_v_self, PyObj
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("append (wrapper)", 0);
   assert(__pyx_arg_val); {
-    __pyx_v_val = __pyx_PyFloat_AsFloat(__pyx_arg_val); if (unlikely((__pyx_v_val == (float)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 49; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+    __pyx_v_val = __pyx_PyFloat_AsFloat(__pyx_arg_val); if (unlikely((__pyx_v_val == (float)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 45; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L3_error:;
@@ -3562,7 +3829,7 @@ static PyObject *__pyx_pw_3_sa_9FloatList_11append(PyObject *__pyx_v_self, PyObj
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":49
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":45
  *         return self.len
  * 
  *     def append(self, float val):             # <<<<<<<<<<<<<<
@@ -3576,7 +3843,7 @@ static PyObject *__pyx_pf_3_sa_9FloatList_10append(struct __pyx_obj_3_sa_FloatLi
   int __pyx_t_1;
   __Pyx_RefNannySetupContext("append", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":50
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":46
  * 
  *     def append(self, float val):
  *         if self.len == self.size:             # <<<<<<<<<<<<<<
@@ -3586,7 +3853,7 @@ static PyObject *__pyx_pf_3_sa_9FloatList_10append(struct __pyx_obj_3_sa_FloatLi
   __pyx_t_1 = (__pyx_v_self->len == __pyx_v_self->size);
   if (__pyx_t_1) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":51
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":47
  *     def append(self, float val):
  *         if self.len == self.size:
  *             self.size = self.size + self.increment             # <<<<<<<<<<<<<<
@@ -3595,7 +3862,7 @@ static PyObject *__pyx_pf_3_sa_9FloatList_10append(struct __pyx_obj_3_sa_FloatLi
  */
     __pyx_v_self->size = (__pyx_v_self->size + __pyx_v_self->increment);
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":52
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":48
  *         if self.len == self.size:
  *             self.size = self.size + self.increment
  *             self.arr = <float*> realloc(self.arr, self.size*sizeof(float))             # <<<<<<<<<<<<<<
@@ -3607,7 +3874,7 @@ static PyObject *__pyx_pf_3_sa_9FloatList_10append(struct __pyx_obj_3_sa_FloatLi
   }
   __pyx_L3:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":53
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":49
  *             self.size = self.size + self.increment
  *             self.arr = <float*> realloc(self.arr, self.size*sizeof(float))
  *         self.arr[self.len] = val             # <<<<<<<<<<<<<<
@@ -3616,7 +3883,7 @@ static PyObject *__pyx_pf_3_sa_9FloatList_10append(struct __pyx_obj_3_sa_FloatLi
  */
   (__pyx_v_self->arr[__pyx_v_self->len]) = __pyx_v_val;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":54
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":50
  *             self.arr = <float*> realloc(self.arr, self.size*sizeof(float))
  *         self.arr[self.len] = val
  *         self.len = self.len + 1             # <<<<<<<<<<<<<<
@@ -3631,7 +3898,7 @@ static PyObject *__pyx_pf_3_sa_9FloatList_10append(struct __pyx_obj_3_sa_FloatLi
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":56
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":52
  *         self.len = self.len + 1
  * 
  *     cdef void write_handle(self, FILE* f):             # <<<<<<<<<<<<<<
@@ -3643,7 +3910,7 @@ static void __pyx_f_3_sa_9FloatList_write_handle(struct __pyx_obj_3_sa_FloatList
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("write_handle", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":57
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":53
  * 
  *     cdef void write_handle(self, FILE* f):
  *         fwrite(&(self.len), sizeof(float), 1, f)             # <<<<<<<<<<<<<<
@@ -3652,7 +3919,7 @@ static void __pyx_f_3_sa_9FloatList_write_handle(struct __pyx_obj_3_sa_FloatList
  */
   fwrite((&__pyx_v_self->len), (sizeof(float)), 1, __pyx_v_f);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":58
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":54
  *     cdef void write_handle(self, FILE* f):
  *         fwrite(&(self.len), sizeof(float), 1, f)
  *         fwrite(self.arr, sizeof(float), self.len, f)             # <<<<<<<<<<<<<<
@@ -3672,7 +3939,7 @@ static PyObject *__pyx_pw_3_sa_9FloatList_13write(PyObject *__pyx_v_self, PyObje
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("write (wrapper)", 0);
   assert(__pyx_arg_filename); {
-    __pyx_v_filename = PyBytes_AsString(__pyx_arg_filename); if (unlikely((!__pyx_v_filename) && PyErr_Occurred())) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 60; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+    __pyx_v_filename = PyBytes_AsString(__pyx_arg_filename); if (unlikely((!__pyx_v_filename) && PyErr_Occurred())) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 56; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L3_error:;
@@ -3685,7 +3952,7 @@ static PyObject *__pyx_pw_3_sa_9FloatList_13write(PyObject *__pyx_v_self, PyObje
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":60
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":56
  *         fwrite(self.arr, sizeof(float), self.len, f)
  * 
  *     def write(self, char* filename):             # <<<<<<<<<<<<<<
@@ -3699,7 +3966,7 @@ static PyObject *__pyx_pf_3_sa_9FloatList_12write(struct __pyx_obj_3_sa_FloatLis
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("write", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":62
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":58
  *     def write(self, char* filename):
  *         cdef FILE* f
  *         f = fopen(filename, "w")             # <<<<<<<<<<<<<<
@@ -3708,7 +3975,7 @@ static PyObject *__pyx_pf_3_sa_9FloatList_12write(struct __pyx_obj_3_sa_FloatLis
  */
   __pyx_v_f = fopen(__pyx_v_filename, __pyx_k__w);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":63
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":59
  *         cdef FILE* f
  *         f = fopen(filename, "w")
  *         self.write_handle(f)             # <<<<<<<<<<<<<<
@@ -3717,7 +3984,7 @@ static PyObject *__pyx_pf_3_sa_9FloatList_12write(struct __pyx_obj_3_sa_FloatLis
  */
   ((struct __pyx_vtabstruct_3_sa_FloatList *)__pyx_v_self->__pyx_vtab)->write_handle(__pyx_v_self, __pyx_v_f);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":64
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":60
  *         f = fopen(filename, "w")
  *         self.write_handle(f)
  *         fclose(f)             # <<<<<<<<<<<<<<
@@ -3732,7 +3999,7 @@ static PyObject *__pyx_pf_3_sa_9FloatList_12write(struct __pyx_obj_3_sa_FloatLis
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":66
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":62
  *         fclose(f)
  * 
  *     cdef void read_handle(self, FILE* f):             # <<<<<<<<<<<<<<
@@ -3744,7 +4011,7 @@ static void __pyx_f_3_sa_9FloatList_read_handle(struct __pyx_obj_3_sa_FloatList
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("read_handle", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":67
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":63
  * 
  *     cdef void read_handle(self, FILE* f):
  *         free(self.arr)             # <<<<<<<<<<<<<<
@@ -3753,7 +4020,7 @@ static void __pyx_f_3_sa_9FloatList_read_handle(struct __pyx_obj_3_sa_FloatList
  */
   free(__pyx_v_self->arr);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":68
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":64
  *     cdef void read_handle(self, FILE* f):
  *         free(self.arr)
  *         fread(&(self.len), sizeof(float), 1, f)             # <<<<<<<<<<<<<<
@@ -3762,7 +4029,7 @@ static void __pyx_f_3_sa_9FloatList_read_handle(struct __pyx_obj_3_sa_FloatList
  */
   fread((&__pyx_v_self->len), (sizeof(float)), 1, __pyx_v_f);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":69
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":65
  *         free(self.arr)
  *         fread(&(self.len), sizeof(float), 1, f)
  *         self.arr = <float*> malloc(self.len * sizeof(float))             # <<<<<<<<<<<<<<
@@ -3771,7 +4038,7 @@ static void __pyx_f_3_sa_9FloatList_read_handle(struct __pyx_obj_3_sa_FloatList
  */
   __pyx_v_self->arr = ((float *)malloc((__pyx_v_self->len * (sizeof(float)))));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":70
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":66
  *         fread(&(self.len), sizeof(float), 1, f)
  *         self.arr = <float*> malloc(self.len * sizeof(float))
  *         self.size = self.len             # <<<<<<<<<<<<<<
@@ -3780,7 +4047,7 @@ static void __pyx_f_3_sa_9FloatList_read_handle(struct __pyx_obj_3_sa_FloatList
  */
   __pyx_v_self->size = __pyx_v_self->len;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":71
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":67
  *         self.arr = <float*> malloc(self.len * sizeof(float))
  *         self.size = self.len
  *         fread(self.arr, sizeof(float), self.len, f)             # <<<<<<<<<<<<<<
@@ -3800,7 +4067,7 @@ static PyObject *__pyx_pw_3_sa_9FloatList_15read(PyObject *__pyx_v_self, PyObjec
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("read (wrapper)", 0);
   assert(__pyx_arg_filename); {
-    __pyx_v_filename = PyBytes_AsString(__pyx_arg_filename); if (unlikely((!__pyx_v_filename) && PyErr_Occurred())) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 73; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+    __pyx_v_filename = PyBytes_AsString(__pyx_arg_filename); if (unlikely((!__pyx_v_filename) && PyErr_Occurred())) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 69; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L3_error:;
@@ -3813,7 +4080,7 @@ static PyObject *__pyx_pw_3_sa_9FloatList_15read(PyObject *__pyx_v_self, PyObjec
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":73
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":69
  *         fread(self.arr, sizeof(float), self.len, f)
  * 
  *     def read(self, char* filename):             # <<<<<<<<<<<<<<
@@ -3827,7 +4094,7 @@ static PyObject *__pyx_pf_3_sa_9FloatList_14read(struct __pyx_obj_3_sa_FloatList
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("read", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":75
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":71
  *     def read(self, char* filename):
  *         cdef FILE* f
  *         f = fopen(filename, "r")             # <<<<<<<<<<<<<<
@@ -3836,7 +4103,7 @@ static PyObject *__pyx_pf_3_sa_9FloatList_14read(struct __pyx_obj_3_sa_FloatList
  */
   __pyx_v_f = fopen(__pyx_v_filename, __pyx_k__r);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":76
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":72
  *         cdef FILE* f
  *         f = fopen(filename, "r")
  *         self.read_handle(f)             # <<<<<<<<<<<<<<
@@ -3844,7 +4111,7 @@ static PyObject *__pyx_pf_3_sa_9FloatList_14read(struct __pyx_obj_3_sa_FloatList
  */
   ((struct __pyx_vtabstruct_3_sa_FloatList *)__pyx_v_self->__pyx_vtab)->read_handle(__pyx_v_self, __pyx_v_f);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":77
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/float_list.pxi":73
  *         f = fopen(filename, "r")
  *         self.read_handle(f)
  *         fclose(f)             # <<<<<<<<<<<<<<
@@ -3898,7 +4165,7 @@ static int __pyx_pw_3_sa_7IntList_1__cinit__(PyObject *__pyx_v_self, PyObject *_
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "__cinit__") < 0)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 15; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "__cinit__") < 0)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 11; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else {
       switch (PyTuple_GET_SIZE(__pyx_args)) {
@@ -3910,24 +4177,24 @@ static int __pyx_pw_3_sa_7IntList_1__cinit__(PyObject *__pyx_v_self, PyObject *_
       }
     }
     if (values[0]) {
-      __pyx_v_size = __Pyx_PyInt_AsInt(values[0]); if (unlikely((__pyx_v_size == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 15; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+      __pyx_v_size = __Pyx_PyInt_AsInt(values[0]); if (unlikely((__pyx_v_size == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 11; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
     } else {
       __pyx_v_size = ((int)0);
     }
     if (values[1]) {
-      __pyx_v_increment = __Pyx_PyInt_AsInt(values[1]); if (unlikely((__pyx_v_increment == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 15; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+      __pyx_v_increment = __Pyx_PyInt_AsInt(values[1]); if (unlikely((__pyx_v_increment == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 11; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
     } else {
       __pyx_v_increment = ((int)1);
     }
     if (values[2]) {
-      __pyx_v_initial_len = __Pyx_PyInt_AsInt(values[2]); if (unlikely((__pyx_v_initial_len == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 15; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+      __pyx_v_initial_len = __Pyx_PyInt_AsInt(values[2]); if (unlikely((__pyx_v_initial_len == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 11; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
     } else {
       __pyx_v_initial_len = ((int)0);
     }
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("__cinit__", 0, 0, 3, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[2]; __pyx_lineno = 15; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+  __Pyx_RaiseArgtupleInvalid("__cinit__", 0, 0, 3, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[2]; __pyx_lineno = 11; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_AddTraceback("_sa.IntList.__cinit__", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -3938,8 +4205,8 @@ static int __pyx_pw_3_sa_7IntList_1__cinit__(PyObject *__pyx_v_self, PyObject *_
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":15
- *     cdef int* arr
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":11
+ * cdef class IntList:
  * 
  *     def __cinit__(self, int size=0, int increment=1, int initial_len=0):             # <<<<<<<<<<<<<<
  *         if initial_len > size:
@@ -3952,7 +4219,7 @@ static int __pyx_pf_3_sa_7IntList___cinit__(struct __pyx_obj_3_sa_IntList *__pyx
   int __pyx_t_1;
   __Pyx_RefNannySetupContext("__cinit__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":16
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":12
  * 
  *     def __cinit__(self, int size=0, int increment=1, int initial_len=0):
  *         if initial_len > size:             # <<<<<<<<<<<<<<
@@ -3962,7 +4229,7 @@ static int __pyx_pf_3_sa_7IntList___cinit__(struct __pyx_obj_3_sa_IntList *__pyx
   __pyx_t_1 = (__pyx_v_initial_len > __pyx_v_size);
   if (__pyx_t_1) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":17
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":13
  *     def __cinit__(self, int size=0, int increment=1, int initial_len=0):
  *         if initial_len > size:
  *             size = initial_len             # <<<<<<<<<<<<<<
@@ -3974,7 +4241,7 @@ static int __pyx_pf_3_sa_7IntList___cinit__(struct __pyx_obj_3_sa_IntList *__pyx
   }
   __pyx_L3:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":18
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":14
  *         if initial_len > size:
  *             size = initial_len
  *         self.size = size             # <<<<<<<<<<<<<<
@@ -3983,7 +4250,7 @@ static int __pyx_pf_3_sa_7IntList___cinit__(struct __pyx_obj_3_sa_IntList *__pyx
  */
   __pyx_v_self->size = __pyx_v_size;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":19
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":15
  *             size = initial_len
  *         self.size = size
  *         self.increment = increment             # <<<<<<<<<<<<<<
@@ -3992,7 +4259,7 @@ static int __pyx_pf_3_sa_7IntList___cinit__(struct __pyx_obj_3_sa_IntList *__pyx
  */
   __pyx_v_self->increment = __pyx_v_increment;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":20
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":16
  *         self.size = size
  *         self.increment = increment
  *         self.len = initial_len             # <<<<<<<<<<<<<<
@@ -4001,7 +4268,7 @@ static int __pyx_pf_3_sa_7IntList___cinit__(struct __pyx_obj_3_sa_IntList *__pyx
  */
   __pyx_v_self->len = __pyx_v_initial_len;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":21
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":17
  *         self.increment = increment
  *         self.len = initial_len
  *         self.arr = <int*> malloc(size*sizeof(int))             # <<<<<<<<<<<<<<
@@ -4010,7 +4277,7 @@ static int __pyx_pf_3_sa_7IntList___cinit__(struct __pyx_obj_3_sa_IntList *__pyx
  */
   __pyx_v_self->arr = ((int *)malloc((__pyx_v_size * (sizeof(int)))));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":22
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":18
  *         self.len = initial_len
  *         self.arr = <int*> malloc(size*sizeof(int))
  *         memset(self.arr, 0, initial_len*sizeof(int))             # <<<<<<<<<<<<<<
@@ -4035,7 +4302,7 @@ static PyObject *__pyx_pw_3_sa_7IntList_3__str__(PyObject *__pyx_v_self) {
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":24
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":20
  *         memset(self.arr, 0, initial_len*sizeof(int))
  * 
  *     def __str__(self):             # <<<<<<<<<<<<<<
@@ -4058,7 +4325,7 @@ static PyObject *__pyx_pf_3_sa_7IntList_2__str__(struct __pyx_obj_3_sa_IntList *
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__str__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":26
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":22
  *     def __str__(self):
  *         cdef unsigned i
  *         ret = "IntList["             # <<<<<<<<<<<<<<
@@ -4068,7 +4335,7 @@ static PyObject *__pyx_pf_3_sa_7IntList_2__str__(struct __pyx_obj_3_sa_IntList *
   __Pyx_INCREF(((PyObject *)__pyx_kp_s_3));
   __pyx_v_ret = ((PyObject *)__pyx_kp_s_3);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":27
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":23
  *         cdef unsigned i
  *         ret = "IntList["
  *         for idx in range(self.size):             # <<<<<<<<<<<<<<
@@ -4079,7 +4346,7 @@ static PyObject *__pyx_pf_3_sa_7IntList_2__str__(struct __pyx_obj_3_sa_IntList *
   for (__pyx_t_2 = 0; __pyx_t_2 < __pyx_t_1; __pyx_t_2+=1) {
     __pyx_v_idx = __pyx_t_2;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":28
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":24
  *         ret = "IntList["
  *         for idx in range(self.size):
  *             if idx>0:             # <<<<<<<<<<<<<<
@@ -4089,14 +4356,14 @@ static PyObject *__pyx_pf_3_sa_7IntList_2__str__(struct __pyx_obj_3_sa_IntList *
     __pyx_t_3 = (__pyx_v_idx > 0);
     if (__pyx_t_3) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":29
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":25
  *         for idx in range(self.size):
  *             if idx>0:
  *                 ret += ","             # <<<<<<<<<<<<<<
  *             ret += str(self.arr[idx])
  *         ret += "]"
  */
-      __pyx_t_4 = PyNumber_InPlaceAdd(__pyx_v_ret, ((PyObject *)__pyx_kp_s_4)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 29; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyNumber_InPlaceAdd(__pyx_v_ret, ((PyObject *)__pyx_kp_s_4)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 25; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_DECREF(__pyx_v_ret);
       __pyx_v_ret = __pyx_t_4;
@@ -4105,24 +4372,24 @@ static PyObject *__pyx_pf_3_sa_7IntList_2__str__(struct __pyx_obj_3_sa_IntList *
     }
     __pyx_L5:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":30
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":26
  *             if idx>0:
  *                 ret += ","
  *             ret += str(self.arr[idx])             # <<<<<<<<<<<<<<
  *         ret += "]"
  *         ret += "len="
  */
-    __pyx_t_4 = PyInt_FromLong((__pyx_v_self->arr[__pyx_v_idx])); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 30; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyInt_FromLong((__pyx_v_self->arr[__pyx_v_idx])); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 26; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_5 = PyTuple_New(1); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 30; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyTuple_New(1); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 26; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
     PyTuple_SET_ITEM(__pyx_t_5, 0, __pyx_t_4);
     __Pyx_GIVEREF(__pyx_t_4);
     __pyx_t_4 = 0;
-    __pyx_t_4 = PyObject_Call(((PyObject *)((PyObject*)(&PyString_Type))), ((PyObject *)__pyx_t_5), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 30; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyObject_Call(((PyObject *)((PyObject*)(&PyString_Type))), ((PyObject *)__pyx_t_5), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 26; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(((PyObject *)__pyx_t_5)); __pyx_t_5 = 0;
-    __pyx_t_5 = PyNumber_InPlaceAdd(__pyx_v_ret, __pyx_t_4); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 30; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyNumber_InPlaceAdd(__pyx_v_ret, __pyx_t_4); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 26; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     __Pyx_DECREF(__pyx_v_ret);
@@ -4130,49 +4397,49 @@ static PyObject *__pyx_pf_3_sa_7IntList_2__str__(struct __pyx_obj_3_sa_IntList *
     __pyx_t_5 = 0;
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":31
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":27
  *                 ret += ","
  *             ret += str(self.arr[idx])
  *         ret += "]"             # <<<<<<<<<<<<<<
  *         ret += "len="
  *         ret += self.len
  */
-  __pyx_t_5 = PyNumber_InPlaceAdd(__pyx_v_ret, ((PyObject *)__pyx_kp_s_5)); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 31; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_5 = PyNumber_InPlaceAdd(__pyx_v_ret, ((PyObject *)__pyx_kp_s_5)); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 27; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_5);
   __Pyx_DECREF(__pyx_v_ret);
   __pyx_v_ret = __pyx_t_5;
   __pyx_t_5 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":32
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":28
  *             ret += str(self.arr[idx])
  *         ret += "]"
  *         ret += "len="             # <<<<<<<<<<<<<<
  *         ret += self.len
  *         return ret
  */
-  __pyx_t_5 = PyNumber_InPlaceAdd(__pyx_v_ret, ((PyObject *)__pyx_kp_s_6)); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 32; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_5 = PyNumber_InPlaceAdd(__pyx_v_ret, ((PyObject *)__pyx_kp_s_6)); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 28; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_5);
   __Pyx_DECREF(__pyx_v_ret);
   __pyx_v_ret = __pyx_t_5;
   __pyx_t_5 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":33
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":29
  *         ret += "]"
  *         ret += "len="
  *         ret += self.len             # <<<<<<<<<<<<<<
  *         return ret
  * 
  */
-  __pyx_t_5 = PyInt_FromLong(__pyx_v_self->len); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 33; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_5 = PyInt_FromLong(__pyx_v_self->len); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 29; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_5);
-  __pyx_t_4 = PyNumber_InPlaceAdd(__pyx_v_ret, __pyx_t_5); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 33; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_4 = PyNumber_InPlaceAdd(__pyx_v_ret, __pyx_t_5); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 29; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_4);
   __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
   __Pyx_DECREF(__pyx_v_ret);
   __pyx_v_ret = __pyx_t_4;
   __pyx_t_4 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":34
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":30
  *         ret += "len="
  *         ret += self.len
  *         return ret             # <<<<<<<<<<<<<<
@@ -4209,7 +4476,7 @@ static PyObject *__pyx_pw_3_sa_7IntList_5index(PyObject *__pyx_v_self, PyObject
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":36
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":32
  *         return ret
  * 
  *     def index(self, val):             # <<<<<<<<<<<<<<
@@ -4231,7 +4498,7 @@ static PyObject *__pyx_pf_3_sa_7IntList_4index(struct __pyx_obj_3_sa_IntList *__
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("index", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":38
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":34
  *     def index(self, val):
  *         cdef unsigned i
  *         for i in range(self.len):             # <<<<<<<<<<<<<<
@@ -4242,23 +4509,23 @@ static PyObject *__pyx_pf_3_sa_7IntList_4index(struct __pyx_obj_3_sa_IntList *__
   for (__pyx_t_2 = 0; __pyx_t_2 < __pyx_t_1; __pyx_t_2+=1) {
     __pyx_v_i = __pyx_t_2;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":39
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":35
  *         cdef unsigned i
  *         for i in range(self.len):
  *             if self.arr[i] == val:             # <<<<<<<<<<<<<<
  *                 return i
  *         return IndexError
  */
-    __pyx_t_3 = PyInt_FromLong((__pyx_v_self->arr[__pyx_v_i])); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 39; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyInt_FromLong((__pyx_v_self->arr[__pyx_v_i])); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 35; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_4 = PyObject_RichCompare(__pyx_t_3, __pyx_v_val, Py_EQ); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 39; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyObject_RichCompare(__pyx_t_3, __pyx_v_val, Py_EQ); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 35; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 39; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 35; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     if (__pyx_t_5) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":40
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":36
  *         for i in range(self.len):
  *             if self.arr[i] == val:
  *                 return i             # <<<<<<<<<<<<<<
@@ -4266,7 +4533,7 @@ static PyObject *__pyx_pf_3_sa_7IntList_4index(struct __pyx_obj_3_sa_IntList *__
  * 
  */
       __Pyx_XDECREF(__pyx_r);
-      __pyx_t_4 = PyLong_FromUnsignedLong(__pyx_v_i); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 40; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyLong_FromUnsignedLong(__pyx_v_i); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 36; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       __pyx_r = __pyx_t_4;
       __pyx_t_4 = 0;
@@ -4276,7 +4543,7 @@ static PyObject *__pyx_pf_3_sa_7IntList_4index(struct __pyx_obj_3_sa_IntList *__
     __pyx_L5:;
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":41
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":37
  *             if self.arr[i] == val:
  *                 return i
  *         return IndexError             # <<<<<<<<<<<<<<
@@ -4329,11 +4596,11 @@ static PyObject *__pyx_pw_3_sa_7IntList_7partition(PyObject *__pyx_v_self, PyObj
         case  1:
         if (likely((values[1] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__end)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("partition", 1, 2, 2, 1); {__pyx_filename = __pyx_f[2]; __pyx_lineno = 43; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("partition", 1, 2, 2, 1); {__pyx_filename = __pyx_f[2]; __pyx_lineno = 39; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "partition") < 0)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 43; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "partition") < 0)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 39; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else if (PyTuple_GET_SIZE(__pyx_args) != 2) {
       goto __pyx_L5_argtuple_error;
@@ -4346,7 +4613,7 @@ static PyObject *__pyx_pw_3_sa_7IntList_7partition(PyObject *__pyx_v_self, PyObj
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("partition", 1, 2, 2, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[2]; __pyx_lineno = 43; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+  __Pyx_RaiseArgtupleInvalid("partition", 1, 2, 2, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[2]; __pyx_lineno = 39; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_AddTraceback("_sa.IntList.partition", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -4357,7 +4624,7 @@ static PyObject *__pyx_pw_3_sa_7IntList_7partition(PyObject *__pyx_v_self, PyObj
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":43
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":39
  *         return IndexError
  * 
  *     def partition(self,start,end):             # <<<<<<<<<<<<<<
@@ -4383,32 +4650,32 @@ static PyObject *__pyx_pf_3_sa_7IntList_6partition(struct __pyx_obj_3_sa_IntList
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("partition", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":44
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":40
  * 
  *     def partition(self,start,end):
  *         pivot = self.arr[end]             # <<<<<<<<<<<<<<
  *         bottom = start-1
  *         top = end
  */
-  __pyx_t_1 = __Pyx_PyIndex_AsSsize_t(__pyx_v_end); if (unlikely((__pyx_t_1 == (Py_ssize_t)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 44; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_t_2 = PyInt_FromLong((__pyx_v_self->arr[__pyx_t_1])); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 44; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_PyIndex_AsSsize_t(__pyx_v_end); if (unlikely((__pyx_t_1 == (Py_ssize_t)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 40; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyInt_FromLong((__pyx_v_self->arr[__pyx_t_1])); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 40; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __pyx_v_pivot = __pyx_t_2;
   __pyx_t_2 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":45
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":41
  *     def partition(self,start,end):
  *         pivot = self.arr[end]
  *         bottom = start-1             # <<<<<<<<<<<<<<
  *         top = end
  *         done = 0
  */
-  __pyx_t_2 = PyNumber_Subtract(__pyx_v_start, __pyx_int_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 45; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyNumber_Subtract(__pyx_v_start, __pyx_int_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 41; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __pyx_v_bottom = __pyx_t_2;
   __pyx_t_2 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":46
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":42
  *         pivot = self.arr[end]
  *         bottom = start-1
  *         top = end             # <<<<<<<<<<<<<<
@@ -4418,7 +4685,7 @@ static PyObject *__pyx_pf_3_sa_7IntList_6partition(struct __pyx_obj_3_sa_IntList
   __Pyx_INCREF(__pyx_v_end);
   __pyx_v_top = __pyx_v_end;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":47
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":43
  *         bottom = start-1
  *         top = end
  *         done = 0             # <<<<<<<<<<<<<<
@@ -4427,7 +4694,7 @@ static PyObject *__pyx_pf_3_sa_7IntList_6partition(struct __pyx_obj_3_sa_IntList
  */
   __pyx_v_done = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":48
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":44
  *         top = end
  *         done = 0
  *         while not done:             # <<<<<<<<<<<<<<
@@ -4438,7 +4705,7 @@ static PyObject *__pyx_pf_3_sa_7IntList_6partition(struct __pyx_obj_3_sa_IntList
     __pyx_t_3 = (!__pyx_v_done);
     if (!__pyx_t_3) break;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":49
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":45
  *         done = 0
  *         while not done:
  *             while not done:             # <<<<<<<<<<<<<<
@@ -4449,33 +4716,33 @@ static PyObject *__pyx_pf_3_sa_7IntList_6partition(struct __pyx_obj_3_sa_IntList
       __pyx_t_3 = (!__pyx_v_done);
       if (!__pyx_t_3) break;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":50
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":46
  *         while not done:
  *             while not done:
  *                 bottom += 1             # <<<<<<<<<<<<<<
  *                 if bottom == top:
  *                     done = 1
  */
-      __pyx_t_2 = PyNumber_InPlaceAdd(__pyx_v_bottom, __pyx_int_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 50; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyNumber_InPlaceAdd(__pyx_v_bottom, __pyx_int_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 46; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_v_bottom);
       __pyx_v_bottom = __pyx_t_2;
       __pyx_t_2 = 0;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":51
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":47
  *             while not done:
  *                 bottom += 1
  *                 if bottom == top:             # <<<<<<<<<<<<<<
  *                     done = 1
  *                     break
  */
-      __pyx_t_2 = PyObject_RichCompare(__pyx_v_bottom, __pyx_v_top, Py_EQ); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 51; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyObject_RichCompare(__pyx_v_bottom, __pyx_v_top, Py_EQ); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 47; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 51; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 47; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       if (__pyx_t_3) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":52
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":48
  *                 bottom += 1
  *                 if bottom == top:
  *                     done = 1             # <<<<<<<<<<<<<<
@@ -4484,7 +4751,7 @@ static PyObject *__pyx_pf_3_sa_7IntList_6partition(struct __pyx_obj_3_sa_IntList
  */
         __pyx_v_done = 1;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":53
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":49
  *                 if bottom == top:
  *                     done = 1
  *                     break             # <<<<<<<<<<<<<<
@@ -4496,35 +4763,35 @@ static PyObject *__pyx_pf_3_sa_7IntList_6partition(struct __pyx_obj_3_sa_IntList
       }
       __pyx_L7:;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":54
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":50
  *                     done = 1
  *                     break
  *                 if self.arr[bottom] > pivot:             # <<<<<<<<<<<<<<
  *                     self.arr[top] = self.arr[bottom]
  *                     break
  */
-      __pyx_t_1 = __Pyx_PyIndex_AsSsize_t(__pyx_v_bottom); if (unlikely((__pyx_t_1 == (Py_ssize_t)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 54; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __pyx_t_2 = PyInt_FromLong((__pyx_v_self->arr[__pyx_t_1])); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 54; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = __Pyx_PyIndex_AsSsize_t(__pyx_v_bottom); if (unlikely((__pyx_t_1 == (Py_ssize_t)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 50; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyInt_FromLong((__pyx_v_self->arr[__pyx_t_1])); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 50; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_4 = PyObject_RichCompare(__pyx_t_2, __pyx_v_pivot, Py_GT); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 54; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyObject_RichCompare(__pyx_t_2, __pyx_v_pivot, Py_GT); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 50; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-      __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 54; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 50; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       if (__pyx_t_3) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":55
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":51
  *                     break
  *                 if self.arr[bottom] > pivot:
  *                     self.arr[top] = self.arr[bottom]             # <<<<<<<<<<<<<<
  *                     break
  *             while not done:
  */
-        __pyx_t_1 = __Pyx_PyIndex_AsSsize_t(__pyx_v_bottom); if (unlikely((__pyx_t_1 == (Py_ssize_t)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 55; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __pyx_t_5 = __Pyx_PyIndex_AsSsize_t(__pyx_v_top); if (unlikely((__pyx_t_5 == (Py_ssize_t)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 55; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_1 = __Pyx_PyIndex_AsSsize_t(__pyx_v_bottom); if (unlikely((__pyx_t_1 == (Py_ssize_t)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 51; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_5 = __Pyx_PyIndex_AsSsize_t(__pyx_v_top); if (unlikely((__pyx_t_5 == (Py_ssize_t)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 51; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         (__pyx_v_self->arr[__pyx_t_5]) = (__pyx_v_self->arr[__pyx_t_1]);
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":56
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":52
  *                 if self.arr[bottom] > pivot:
  *                     self.arr[top] = self.arr[bottom]
  *                     break             # <<<<<<<<<<<<<<
@@ -4538,7 +4805,7 @@ static PyObject *__pyx_pf_3_sa_7IntList_6partition(struct __pyx_obj_3_sa_IntList
     }
     __pyx_L6_break:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":57
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":53
  *                     self.arr[top] = self.arr[bottom]
  *                     break
  *             while not done:             # <<<<<<<<<<<<<<
@@ -4549,33 +4816,33 @@ static PyObject *__pyx_pf_3_sa_7IntList_6partition(struct __pyx_obj_3_sa_IntList
       __pyx_t_3 = (!__pyx_v_done);
       if (!__pyx_t_3) break;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":58
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":54
  *                     break
  *             while not done:
  *                 top -= 1             # <<<<<<<<<<<<<<
  *                 if top == bottom:
  *                     done = 1
  */
-      __pyx_t_4 = PyNumber_InPlaceSubtract(__pyx_v_top, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 58; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyNumber_InPlaceSubtract(__pyx_v_top, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 54; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_DECREF(__pyx_v_top);
       __pyx_v_top = __pyx_t_4;
       __pyx_t_4 = 0;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":59
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":55
  *             while not done:
  *                 top -= 1
  *                 if top == bottom:             # <<<<<<<<<<<<<<
  *                     done = 1
  *                     break
  */
-      __pyx_t_4 = PyObject_RichCompare(__pyx_v_top, __pyx_v_bottom, Py_EQ); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 59; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyObject_RichCompare(__pyx_v_top, __pyx_v_bottom, Py_EQ); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 55; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 59; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 55; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       if (__pyx_t_3) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":60
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":56
  *                 top -= 1
  *                 if top == bottom:
  *                     done = 1             # <<<<<<<<<<<<<<
@@ -4584,7 +4851,7 @@ static PyObject *__pyx_pf_3_sa_7IntList_6partition(struct __pyx_obj_3_sa_IntList
  */
         __pyx_v_done = 1;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":61
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":57
  *                 if top == bottom:
  *                     done = 1
  *                     break             # <<<<<<<<<<<<<<
@@ -4596,35 +4863,35 @@ static PyObject *__pyx_pf_3_sa_7IntList_6partition(struct __pyx_obj_3_sa_IntList
       }
       __pyx_L11:;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":62
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":58
  *                     done = 1
  *                     break
  *                 if self.arr[top] < pivot:             # <<<<<<<<<<<<<<
  *                     self.arr[bottom] = self.arr[top]
  *                     break
  */
-      __pyx_t_1 = __Pyx_PyIndex_AsSsize_t(__pyx_v_top); if (unlikely((__pyx_t_1 == (Py_ssize_t)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 62; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __pyx_t_4 = PyInt_FromLong((__pyx_v_self->arr[__pyx_t_1])); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 62; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = __Pyx_PyIndex_AsSsize_t(__pyx_v_top); if (unlikely((__pyx_t_1 == (Py_ssize_t)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 58; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyInt_FromLong((__pyx_v_self->arr[__pyx_t_1])); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 58; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_2 = PyObject_RichCompare(__pyx_t_4, __pyx_v_pivot, Py_LT); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 62; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyObject_RichCompare(__pyx_t_4, __pyx_v_pivot, Py_LT); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 58; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-      __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 62; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 58; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       if (__pyx_t_3) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":63
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":59
  *                     break
  *                 if self.arr[top] < pivot:
  *                     self.arr[bottom] = self.arr[top]             # <<<<<<<<<<<<<<
  *                     break
  *         self.arr[top] = pivot
  */
-        __pyx_t_1 = __Pyx_PyIndex_AsSsize_t(__pyx_v_top); if (unlikely((__pyx_t_1 == (Py_ssize_t)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 63; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __pyx_t_5 = __Pyx_PyIndex_AsSsize_t(__pyx_v_bottom); if (unlikely((__pyx_t_5 == (Py_ssize_t)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 63; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_1 = __Pyx_PyIndex_AsSsize_t(__pyx_v_top); if (unlikely((__pyx_t_1 == (Py_ssize_t)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 59; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_5 = __Pyx_PyIndex_AsSsize_t(__pyx_v_bottom); if (unlikely((__pyx_t_5 == (Py_ssize_t)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 59; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         (__pyx_v_self->arr[__pyx_t_5]) = (__pyx_v_self->arr[__pyx_t_1]);
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":64
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":60
  *                 if self.arr[top] < pivot:
  *                     self.arr[bottom] = self.arr[top]
  *                     break             # <<<<<<<<<<<<<<
@@ -4639,18 +4906,18 @@ static PyObject *__pyx_pf_3_sa_7IntList_6partition(struct __pyx_obj_3_sa_IntList
     __pyx_L10_break:;
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":65
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":61
  *                     self.arr[bottom] = self.arr[top]
  *                     break
  *         self.arr[top] = pivot             # <<<<<<<<<<<<<<
  *         return top
  * 
  */
-  __pyx_t_6 = __Pyx_PyInt_AsInt(__pyx_v_pivot); if (unlikely((__pyx_t_6 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 65; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_t_1 = __Pyx_PyIndex_AsSsize_t(__pyx_v_top); if (unlikely((__pyx_t_1 == (Py_ssize_t)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 65; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_6 = __Pyx_PyInt_AsInt(__pyx_v_pivot); if (unlikely((__pyx_t_6 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 61; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_PyIndex_AsSsize_t(__pyx_v_top); if (unlikely((__pyx_t_1 == (Py_ssize_t)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 61; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   (__pyx_v_self->arr[__pyx_t_1]) = __pyx_t_6;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":66
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":62
  *                     break
  *         self.arr[top] = pivot
  *         return top             # <<<<<<<<<<<<<<
@@ -4706,11 +4973,11 @@ static PyObject *__pyx_pw_3_sa_7IntList_9_doquicksort(PyObject *__pyx_v_self, Py
         case  1:
         if (likely((values[1] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__end)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("_doquicksort", 1, 2, 2, 1); {__pyx_filename = __pyx_f[2]; __pyx_lineno = 68; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("_doquicksort", 1, 2, 2, 1); {__pyx_filename = __pyx_f[2]; __pyx_lineno = 64; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "_doquicksort") < 0)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 68; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "_doquicksort") < 0)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 64; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else if (PyTuple_GET_SIZE(__pyx_args) != 2) {
       goto __pyx_L5_argtuple_error;
@@ -4723,7 +4990,7 @@ static PyObject *__pyx_pw_3_sa_7IntList_9_doquicksort(PyObject *__pyx_v_self, Py
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("_doquicksort", 1, 2, 2, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[2]; __pyx_lineno = 68; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+  __Pyx_RaiseArgtupleInvalid("_doquicksort", 1, 2, 2, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[2]; __pyx_lineno = 64; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_AddTraceback("_sa.IntList._doquicksort", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -4734,7 +5001,7 @@ static PyObject *__pyx_pw_3_sa_7IntList_9_doquicksort(PyObject *__pyx_v_self, Py
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":68
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":64
  *         return top
  * 
  *     def _doquicksort(self,start,end):             # <<<<<<<<<<<<<<
@@ -4755,29 +5022,29 @@ static PyObject *__pyx_pf_3_sa_7IntList_8_doquicksort(struct __pyx_obj_3_sa_IntL
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("_doquicksort", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":69
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":65
  * 
  *     def _doquicksort(self,start,end):
  *         if start < end:             # <<<<<<<<<<<<<<
  *             split = self.partition(start,end)
  *             self._doquicksort(start,split-1)
  */
-  __pyx_t_1 = PyObject_RichCompare(__pyx_v_start, __pyx_v_end, Py_LT); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 69; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_RichCompare(__pyx_v_start, __pyx_v_end, Py_LT); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 65; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_2 < 0)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 69; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_2 < 0)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 65; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   if (__pyx_t_2) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":70
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":66
  *     def _doquicksort(self,start,end):
  *         if start < end:
  *             split = self.partition(start,end)             # <<<<<<<<<<<<<<
  *             self._doquicksort(start,split-1)
  *             self._doquicksort(split+1,end)
  */
-    __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_v_self), __pyx_n_s__partition); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 70; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_v_self), __pyx_n_s__partition); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 66; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 70; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 66; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_INCREF(__pyx_v_start);
     PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_v_start);
@@ -4785,25 +5052,25 @@ static PyObject *__pyx_pf_3_sa_7IntList_8_doquicksort(struct __pyx_obj_3_sa_IntL
     __Pyx_INCREF(__pyx_v_end);
     PyTuple_SET_ITEM(__pyx_t_3, 1, __pyx_v_end);
     __Pyx_GIVEREF(__pyx_v_end);
-    __pyx_t_4 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 70; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 66; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
     __pyx_v_split = __pyx_t_4;
     __pyx_t_4 = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":71
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":67
  *         if start < end:
  *             split = self.partition(start,end)
  *             self._doquicksort(start,split-1)             # <<<<<<<<<<<<<<
  *             self._doquicksort(split+1,end)
  *         else:
  */
-    __pyx_t_4 = PyObject_GetAttr(((PyObject *)__pyx_v_self), __pyx_n_s___doquicksort); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 71; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyObject_GetAttr(((PyObject *)__pyx_v_self), __pyx_n_s___doquicksort); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 67; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_3 = PyNumber_Subtract(__pyx_v_split, __pyx_int_1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 71; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyNumber_Subtract(__pyx_v_split, __pyx_int_1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 67; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_1 = PyTuple_New(2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 71; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyTuple_New(2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 67; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_INCREF(__pyx_v_start);
     PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_v_start);
@@ -4811,24 +5078,24 @@ static PyObject *__pyx_pf_3_sa_7IntList_8_doquicksort(struct __pyx_obj_3_sa_IntL
     PyTuple_SET_ITEM(__pyx_t_1, 1, __pyx_t_3);
     __Pyx_GIVEREF(__pyx_t_3);
     __pyx_t_3 = 0;
-    __pyx_t_3 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 71; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 67; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":72
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":68
  *             split = self.partition(start,end)
  *             self._doquicksort(start,split-1)
  *             self._doquicksort(split+1,end)             # <<<<<<<<<<<<<<
  *         else:
  *             return
  */
-    __pyx_t_3 = PyObject_GetAttr(((PyObject *)__pyx_v_self), __pyx_n_s___doquicksort); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 72; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_GetAttr(((PyObject *)__pyx_v_self), __pyx_n_s___doquicksort); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 68; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_1 = PyNumber_Add(__pyx_v_split, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 72; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyNumber_Add(__pyx_v_split, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 68; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_4 = PyTuple_New(2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 72; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyTuple_New(2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 68; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     PyTuple_SET_ITEM(__pyx_t_4, 0, __pyx_t_1);
     __Pyx_GIVEREF(__pyx_t_1);
@@ -4836,7 +5103,7 @@ static PyObject *__pyx_pf_3_sa_7IntList_8_doquicksort(struct __pyx_obj_3_sa_IntL
     PyTuple_SET_ITEM(__pyx_t_4, 1, __pyx_v_end);
     __Pyx_GIVEREF(__pyx_v_end);
     __pyx_t_1 = 0;
-    __pyx_t_1 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 72; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 68; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
@@ -4845,7 +5112,7 @@ static PyObject *__pyx_pf_3_sa_7IntList_8_doquicksort(struct __pyx_obj_3_sa_IntL
   }
   /*else*/ {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":74
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":70
  *             self._doquicksort(split+1,end)
  *         else:
  *             return             # <<<<<<<<<<<<<<
@@ -4884,7 +5151,7 @@ static PyObject *__pyx_pw_3_sa_7IntList_11sort(PyObject *__pyx_v_self, CYTHON_UN
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":76
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":72
  *             return
  * 
  *     def sort(self):             # <<<<<<<<<<<<<<
@@ -4903,18 +5170,18 @@ static PyObject *__pyx_pf_3_sa_7IntList_10sort(struct __pyx_obj_3_sa_IntList *__
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("sort", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":77
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":73
  * 
  *     def sort(self):
  *         self._doquicksort(0,self.len-1)             # <<<<<<<<<<<<<<
  * 
  *     def reset(self):
  */
-  __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_v_self), __pyx_n_s___doquicksort); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 77; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_v_self), __pyx_n_s___doquicksort); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 73; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = PyInt_FromLong((__pyx_v_self->len - 1)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 77; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyInt_FromLong((__pyx_v_self->len - 1)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 73; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 77; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 73; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_INCREF(__pyx_int_0);
   PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_int_0);
@@ -4922,7 +5189,7 @@ static PyObject *__pyx_pf_3_sa_7IntList_10sort(struct __pyx_obj_3_sa_IntList *__
   PyTuple_SET_ITEM(__pyx_t_3, 1, __pyx_t_2);
   __Pyx_GIVEREF(__pyx_t_2);
   __pyx_t_2 = 0;
-  __pyx_t_2 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 77; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 73; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
@@ -4953,7 +5220,7 @@ static PyObject *__pyx_pw_3_sa_7IntList_13reset(PyObject *__pyx_v_self, CYTHON_U
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":79
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":75
  *         self._doquicksort(0,self.len-1)
  * 
  *     def reset(self):             # <<<<<<<<<<<<<<
@@ -4966,7 +5233,7 @@ static PyObject *__pyx_pf_3_sa_7IntList_12reset(struct __pyx_obj_3_sa_IntList *_
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("reset", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":80
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":76
  * 
  *     def reset(self):
  *         self.len = 0             # <<<<<<<<<<<<<<
@@ -4990,7 +5257,7 @@ static void __pyx_pw_3_sa_7IntList_15__dealloc__(PyObject *__pyx_v_self) {
   __Pyx_RefNannyFinishContext();
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":82
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":78
  *         self.len = 0
  * 
  *     def __dealloc__(self):             # <<<<<<<<<<<<<<
@@ -5002,38 +5269,160 @@ static void __pyx_pf_3_sa_7IntList_14__dealloc__(struct __pyx_obj_3_sa_IntList *
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__dealloc__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":83
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":79
  * 
  *     def __dealloc__(self):
  *         free(self.arr)             # <<<<<<<<<<<<<<
  * 
- *     def __getitem__(self, index):
+ *     def __iter__(self):
  */
   free(__pyx_v_self->arr);
 
   __Pyx_RefNannyFinishContext();
 }
+static PyObject *__pyx_gb_3_sa_7IntList_18generator(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
 
 /* Python wrapper */
-static PyObject *__pyx_pw_3_sa_7IntList_17__getitem__(PyObject *__pyx_v_self, PyObject *__pyx_v_index); /*proto*/
-static PyObject *__pyx_pw_3_sa_7IntList_17__getitem__(PyObject *__pyx_v_self, PyObject *__pyx_v_index) {
+static PyObject *__pyx_pw_3_sa_7IntList_17__iter__(PyObject *__pyx_v_self); /*proto*/
+static PyObject *__pyx_pw_3_sa_7IntList_17__iter__(PyObject *__pyx_v_self) {
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
-  __Pyx_RefNannySetupContext("__getitem__ (wrapper)", 0);
-  __pyx_r = __pyx_pf_3_sa_7IntList_16__getitem__(((struct __pyx_obj_3_sa_IntList *)__pyx_v_self), ((PyObject *)__pyx_v_index));
+  __Pyx_RefNannySetupContext("__iter__ (wrapper)", 0);
+  __pyx_r = __pyx_pf_3_sa_7IntList_16__iter__(((struct __pyx_obj_3_sa_IntList *)__pyx_v_self));
   __Pyx_RefNannyFinishContext();
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":85
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":81
  *         free(self.arr)
  * 
+ *     def __iter__(self):             # <<<<<<<<<<<<<<
+ *         cdef int i
+ *         for i in range(self.len):
+ */
+
+static PyObject *__pyx_pf_3_sa_7IntList_16__iter__(struct __pyx_obj_3_sa_IntList *__pyx_v_self) {
+  struct __pyx_obj_3_sa___pyx_scope_struct____iter__ *__pyx_cur_scope;
+  PyObject *__pyx_r = NULL;
+  __Pyx_RefNannyDeclarations
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
+  __Pyx_RefNannySetupContext("__iter__", 0);
+  __pyx_cur_scope = (struct __pyx_obj_3_sa___pyx_scope_struct____iter__ *)__pyx_ptype_3_sa___pyx_scope_struct____iter__->tp_new(__pyx_ptype_3_sa___pyx_scope_struct____iter__, __pyx_empty_tuple, NULL);
+  if (unlikely(!__pyx_cur_scope)) {
+    __Pyx_RefNannyFinishContext();
+    return NULL;
+  }
+  __Pyx_GOTREF(__pyx_cur_scope);
+  __pyx_cur_scope->__pyx_v_self = __pyx_v_self;
+  __Pyx_INCREF((PyObject *)__pyx_cur_scope->__pyx_v_self);
+  __Pyx_GIVEREF((PyObject *)__pyx_cur_scope->__pyx_v_self);
+  {
+    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_3_sa_7IntList_18generator, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 81; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_DECREF(__pyx_cur_scope);
+    __Pyx_RefNannyFinishContext();
+    return (PyObject *) gen;
+  }
+
+  __pyx_r = Py_None; __Pyx_INCREF(Py_None);
+  goto __pyx_L0;
+  __pyx_L1_error:;
+  __Pyx_AddTraceback("_sa.IntList.__iter__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __pyx_r = NULL;
+  __pyx_L0:;
+  __Pyx_DECREF(((PyObject *)__pyx_cur_scope));
+  __Pyx_XGIVEREF(__pyx_r);
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+
+static PyObject *__pyx_gb_3_sa_7IntList_18generator(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
+{
+  struct __pyx_obj_3_sa___pyx_scope_struct____iter__ *__pyx_cur_scope = ((struct __pyx_obj_3_sa___pyx_scope_struct____iter__ *)__pyx_generator->closure);
+  PyObject *__pyx_r = NULL;
+  int __pyx_t_1;
+  int __pyx_t_2;
+  PyObject *__pyx_t_3 = NULL;
+  __Pyx_RefNannyDeclarations
+  __Pyx_RefNannySetupContext("None", 0);
+  switch (__pyx_generator->resume_label) {
+    case 0: goto __pyx_L3_first_run;
+    case 1: goto __pyx_L6_resume_from_yield;
+    default: /* CPython raises the right error here */
+    __Pyx_RefNannyFinishContext();
+    return NULL;
+  }
+  __pyx_L3_first_run:;
+  if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 81; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":83
+ *     def __iter__(self):
+ *         cdef int i
+ *         for i in range(self.len):             # <<<<<<<<<<<<<<
+ *             yield self.arr[i]
+ * 
+ */
+  __pyx_t_1 = __pyx_cur_scope->__pyx_v_self->len;
+  for (__pyx_t_2 = 0; __pyx_t_2 < __pyx_t_1; __pyx_t_2+=1) {
+    __pyx_cur_scope->__pyx_v_i = __pyx_t_2;
+
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":84
+ *         cdef int i
+ *         for i in range(self.len):
+ *             yield self.arr[i]             # <<<<<<<<<<<<<<
+ * 
+ *     def __getitem__(self, index):
+ */
+    __pyx_t_3 = PyInt_FromLong((__pyx_cur_scope->__pyx_v_self->arr[__pyx_cur_scope->__pyx_v_i])); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 84; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_3);
+    __pyx_r = __pyx_t_3;
+    __pyx_t_3 = 0;
+    __pyx_cur_scope->__pyx_t_0 = __pyx_t_1;
+    __pyx_cur_scope->__pyx_t_1 = __pyx_t_2;
+    __Pyx_XGIVEREF(__pyx_r);
+    __Pyx_RefNannyFinishContext();
+    /* return from generator, yielding value */
+    __pyx_generator->resume_label = 1;
+    return __pyx_r;
+    __pyx_L6_resume_from_yield:;
+    __pyx_t_1 = __pyx_cur_scope->__pyx_t_0;
+    __pyx_t_2 = __pyx_cur_scope->__pyx_t_1;
+    if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 84; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  }
+  PyErr_SetNone(PyExc_StopIteration);
+  goto __pyx_L0;
+  __pyx_L1_error:;
+  __Pyx_XDECREF(__pyx_t_3);
+  __Pyx_AddTraceback("__iter__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __pyx_L0:;
+  __Pyx_XDECREF(__pyx_r);
+  __pyx_generator->resume_label = -1;
+  __Pyx_Generator_clear((PyObject*)__pyx_generator);
+  __Pyx_RefNannyFinishContext();
+  return NULL;
+}
+
+/* Python wrapper */
+static PyObject *__pyx_pw_3_sa_7IntList_20__getitem__(PyObject *__pyx_v_self, PyObject *__pyx_v_index); /*proto*/
+static PyObject *__pyx_pw_3_sa_7IntList_20__getitem__(PyObject *__pyx_v_self, PyObject *__pyx_v_index) {
+  PyObject *__pyx_r = 0;
+  __Pyx_RefNannyDeclarations
+  __Pyx_RefNannySetupContext("__getitem__ (wrapper)", 0);
+  __pyx_r = __pyx_pf_3_sa_7IntList_19__getitem__(((struct __pyx_obj_3_sa_IntList *)__pyx_v_self), ((PyObject *)__pyx_v_index));
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":86
+ *             yield self.arr[i]
+ * 
  *     def __getitem__(self, index):             # <<<<<<<<<<<<<<
  *         cdef int i, j, k
  *         if isinstance(index, int):
  */
 
-static PyObject *__pyx_pf_3_sa_7IntList_16__getitem__(struct __pyx_obj_3_sa_IntList *__pyx_v_self, PyObject *__pyx_v_index) {
+static PyObject *__pyx_pf_3_sa_7IntList_19__getitem__(struct __pyx_obj_3_sa_IntList *__pyx_v_self, PyObject *__pyx_v_index) {
   int __pyx_v_i;
   int __pyx_v_j;
   int __pyx_v_k;
@@ -5055,7 +5444,7 @@ static PyObject *__pyx_pf_3_sa_7IntList_16__getitem__(struct __pyx_obj_3_sa_IntL
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__getitem__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":87
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":88
  *     def __getitem__(self, index):
  *         cdef int i, j, k
  *         if isinstance(index, int):             # <<<<<<<<<<<<<<
@@ -5068,17 +5457,17 @@ static PyObject *__pyx_pf_3_sa_7IntList_16__getitem__(struct __pyx_obj_3_sa_IntL
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   if (__pyx_t_2) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":88
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":89
  *         cdef int i, j, k
  *         if isinstance(index, int):
  *             j = index             # <<<<<<<<<<<<<<
  *             if j < 0:
  *                 j = self.len + j
  */
-    __pyx_t_3 = __Pyx_PyInt_AsInt(__pyx_v_index); if (unlikely((__pyx_t_3 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 88; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = __Pyx_PyInt_AsInt(__pyx_v_index); if (unlikely((__pyx_t_3 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 89; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __pyx_v_j = __pyx_t_3;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":89
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":90
  *         if isinstance(index, int):
  *             j = index
  *             if j < 0:             # <<<<<<<<<<<<<<
@@ -5088,7 +5477,7 @@ static PyObject *__pyx_pf_3_sa_7IntList_16__getitem__(struct __pyx_obj_3_sa_IntL
     __pyx_t_2 = (__pyx_v_j < 0);
     if (__pyx_t_2) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":90
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":91
  *             j = index
  *             if j < 0:
  *                 j = self.len + j             # <<<<<<<<<<<<<<
@@ -5100,7 +5489,7 @@ static PyObject *__pyx_pf_3_sa_7IntList_16__getitem__(struct __pyx_obj_3_sa_IntL
     }
     __pyx_L4:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":91
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":92
  *             if j < 0:
  *                 j = self.len + j
  *             if j<0 or j>=self.len:             # <<<<<<<<<<<<<<
@@ -5116,16 +5505,16 @@ static PyObject *__pyx_pf_3_sa_7IntList_16__getitem__(struct __pyx_obj_3_sa_IntL
     }
     if (__pyx_t_5) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":92
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":93
  *                 j = self.len + j
  *             if j<0 or j>=self.len:
  *                 raise IndexError("Requested index %d of %d-length IntList" % (index, self.len))             # <<<<<<<<<<<<<<
  *             return self.arr[j]
  *         elif isinstance(index, slice):
  */
-      __pyx_t_1 = PyInt_FromLong(__pyx_v_self->len); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 92; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyInt_FromLong(__pyx_v_self->len); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 93; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
-      __pyx_t_6 = PyTuple_New(2); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 92; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = PyTuple_New(2); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 93; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_6);
       __Pyx_INCREF(__pyx_v_index);
       PyTuple_SET_ITEM(__pyx_t_6, 0, __pyx_v_index);
@@ -5133,25 +5522,25 @@ static PyObject *__pyx_pf_3_sa_7IntList_16__getitem__(struct __pyx_obj_3_sa_IntL
       PyTuple_SET_ITEM(__pyx_t_6, 1, __pyx_t_1);
       __Pyx_GIVEREF(__pyx_t_1);
       __pyx_t_1 = 0;
-      __pyx_t_1 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_7), ((PyObject *)__pyx_t_6)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 92; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_7), ((PyObject *)__pyx_t_6)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 93; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(((PyObject *)__pyx_t_1));
       __Pyx_DECREF(((PyObject *)__pyx_t_6)); __pyx_t_6 = 0;
-      __pyx_t_6 = PyTuple_New(1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 92; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = PyTuple_New(1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 93; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_6);
       PyTuple_SET_ITEM(__pyx_t_6, 0, ((PyObject *)__pyx_t_1));
       __Pyx_GIVEREF(((PyObject *)__pyx_t_1));
       __pyx_t_1 = 0;
-      __pyx_t_1 = PyObject_Call(__pyx_builtin_IndexError, ((PyObject *)__pyx_t_6), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 92; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyObject_Call(__pyx_builtin_IndexError, ((PyObject *)__pyx_t_6), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 93; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
       __Pyx_DECREF(((PyObject *)__pyx_t_6)); __pyx_t_6 = 0;
       __Pyx_Raise(__pyx_t_1, 0, 0, 0);
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-      {__pyx_filename = __pyx_f[2]; __pyx_lineno = 92; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      {__pyx_filename = __pyx_f[2]; __pyx_lineno = 93; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       goto __pyx_L5;
     }
     __pyx_L5:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":93
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":94
  *             if j<0 or j>=self.len:
  *                 raise IndexError("Requested index %d of %d-length IntList" % (index, self.len))
  *             return self.arr[j]             # <<<<<<<<<<<<<<
@@ -5159,7 +5548,7 @@ static PyObject *__pyx_pf_3_sa_7IntList_16__getitem__(struct __pyx_obj_3_sa_IntL
  *             i = index.start
  */
     __Pyx_XDECREF(__pyx_r);
-    __pyx_t_1 = PyInt_FromLong((__pyx_v_self->arr[__pyx_v_j])); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 93; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyInt_FromLong((__pyx_v_self->arr[__pyx_v_j])); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 94; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __pyx_r = __pyx_t_1;
     __pyx_t_1 = 0;
@@ -5167,7 +5556,7 @@ static PyObject *__pyx_pf_3_sa_7IntList_16__getitem__(struct __pyx_obj_3_sa_IntL
     goto __pyx_L3;
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":94
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":95
  *                 raise IndexError("Requested index %d of %d-length IntList" % (index, self.len))
  *             return self.arr[j]
  *         elif isinstance(index, slice):             # <<<<<<<<<<<<<<
@@ -5180,33 +5569,33 @@ static PyObject *__pyx_pf_3_sa_7IntList_16__getitem__(struct __pyx_obj_3_sa_IntL
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   if (__pyx_t_5) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":95
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":96
  *             return self.arr[j]
  *         elif isinstance(index, slice):
  *             i = index.start             # <<<<<<<<<<<<<<
  *             j = index.stop
  *             if i < 0:
  */
-    __pyx_t_1 = PyObject_GetAttr(__pyx_v_index, __pyx_n_s__start); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 95; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyObject_GetAttr(__pyx_v_index, __pyx_n_s__start); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 96; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_3 = __Pyx_PyInt_AsInt(__pyx_t_1); if (unlikely((__pyx_t_3 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 95; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = __Pyx_PyInt_AsInt(__pyx_t_1); if (unlikely((__pyx_t_3 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 96; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     __pyx_v_i = __pyx_t_3;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":96
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":97
  *         elif isinstance(index, slice):
  *             i = index.start
  *             j = index.stop             # <<<<<<<<<<<<<<
  *             if i < 0:
  *                 i = self.len + i
  */
-    __pyx_t_1 = PyObject_GetAttr(__pyx_v_index, __pyx_n_s__stop); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 96; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyObject_GetAttr(__pyx_v_index, __pyx_n_s__stop); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 97; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_3 = __Pyx_PyInt_AsInt(__pyx_t_1); if (unlikely((__pyx_t_3 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 96; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = __Pyx_PyInt_AsInt(__pyx_t_1); if (unlikely((__pyx_t_3 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 97; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     __pyx_v_j = __pyx_t_3;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":97
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":98
  *             i = index.start
  *             j = index.stop
  *             if i < 0:             # <<<<<<<<<<<<<<
@@ -5216,7 +5605,7 @@ static PyObject *__pyx_pf_3_sa_7IntList_16__getitem__(struct __pyx_obj_3_sa_IntL
     __pyx_t_5 = (__pyx_v_i < 0);
     if (__pyx_t_5) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":98
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":99
  *             j = index.stop
  *             if i < 0:
  *                 i = self.len + i             # <<<<<<<<<<<<<<
@@ -5228,7 +5617,7 @@ static PyObject *__pyx_pf_3_sa_7IntList_16__getitem__(struct __pyx_obj_3_sa_IntL
     }
     __pyx_L6:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":99
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":100
  *             if i < 0:
  *                 i = self.len + i
  *             if j < 0:             # <<<<<<<<<<<<<<
@@ -5238,7 +5627,7 @@ static PyObject *__pyx_pf_3_sa_7IntList_16__getitem__(struct __pyx_obj_3_sa_IntL
     __pyx_t_5 = (__pyx_v_j < 0);
     if (__pyx_t_5) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":100
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":101
  *                 i = self.len + i
  *             if j < 0:
  *                 j = self.len + j             # <<<<<<<<<<<<<<
@@ -5250,7 +5639,7 @@ static PyObject *__pyx_pf_3_sa_7IntList_16__getitem__(struct __pyx_obj_3_sa_IntL
     }
     __pyx_L7:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":101
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":102
  *             if j < 0:
  *                 j = self.len + j
  *             if i < 0 or i >= self.len or j < 0 or j > self.len:             # <<<<<<<<<<<<<<
@@ -5278,20 +5667,20 @@ static PyObject *__pyx_pf_3_sa_7IntList_16__getitem__(struct __pyx_obj_3_sa_IntL
     }
     if (__pyx_t_2) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":102
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":103
  *                 j = self.len + j
  *             if i < 0 or i >= self.len or j < 0 or j > self.len:
  *                 raise IndexError("Requested index %d:%d of %d-length IntList" % (index.start, index.stop, self.len))             # <<<<<<<<<<<<<<
  *             result = ()
  *             for k from i <= k < j:
  */
-      __pyx_t_1 = PyObject_GetAttr(__pyx_v_index, __pyx_n_s__start); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 102; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyObject_GetAttr(__pyx_v_index, __pyx_n_s__start); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 103; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
-      __pyx_t_6 = PyObject_GetAttr(__pyx_v_index, __pyx_n_s__stop); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 102; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = PyObject_GetAttr(__pyx_v_index, __pyx_n_s__stop); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 103; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_6);
-      __pyx_t_9 = PyInt_FromLong(__pyx_v_self->len); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 102; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_9 = PyInt_FromLong(__pyx_v_self->len); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 103; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_9);
-      __pyx_t_10 = PyTuple_New(3); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 102; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_10 = PyTuple_New(3); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 103; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_10);
       PyTuple_SET_ITEM(__pyx_t_10, 0, __pyx_t_1);
       __Pyx_GIVEREF(__pyx_t_1);
@@ -5302,25 +5691,25 @@ static PyObject *__pyx_pf_3_sa_7IntList_16__getitem__(struct __pyx_obj_3_sa_IntL
       __pyx_t_1 = 0;
       __pyx_t_6 = 0;
       __pyx_t_9 = 0;
-      __pyx_t_9 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_8), ((PyObject *)__pyx_t_10)); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 102; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_9 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_8), ((PyObject *)__pyx_t_10)); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 103; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(((PyObject *)__pyx_t_9));
       __Pyx_DECREF(((PyObject *)__pyx_t_10)); __pyx_t_10 = 0;
-      __pyx_t_10 = PyTuple_New(1); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 102; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_10 = PyTuple_New(1); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 103; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_10);
       PyTuple_SET_ITEM(__pyx_t_10, 0, ((PyObject *)__pyx_t_9));
       __Pyx_GIVEREF(((PyObject *)__pyx_t_9));
       __pyx_t_9 = 0;
-      __pyx_t_9 = PyObject_Call(__pyx_builtin_IndexError, ((PyObject *)__pyx_t_10), NULL); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 102; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_9 = PyObject_Call(__pyx_builtin_IndexError, ((PyObject *)__pyx_t_10), NULL); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 103; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_9);
       __Pyx_DECREF(((PyObject *)__pyx_t_10)); __pyx_t_10 = 0;
       __Pyx_Raise(__pyx_t_9, 0, 0, 0);
       __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
-      {__pyx_filename = __pyx_f[2]; __pyx_lineno = 102; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      {__pyx_filename = __pyx_f[2]; __pyx_lineno = 103; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       goto __pyx_L8;
     }
     __pyx_L8:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":103
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":104
  *             if i < 0 or i >= self.len or j < 0 or j > self.len:
  *                 raise IndexError("Requested index %d:%d of %d-length IntList" % (index.start, index.stop, self.len))
  *             result = ()             # <<<<<<<<<<<<<<
@@ -5330,7 +5719,7 @@ static PyObject *__pyx_pf_3_sa_7IntList_16__getitem__(struct __pyx_obj_3_sa_IntL
     __Pyx_INCREF(((PyObject *)__pyx_empty_tuple));
     __pyx_v_result = __pyx_empty_tuple;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":104
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":105
  *                 raise IndexError("Requested index %d:%d of %d-length IntList" % (index.start, index.stop, self.len))
  *             result = ()
  *             for k from i <= k < j:             # <<<<<<<<<<<<<<
@@ -5340,21 +5729,21 @@ static PyObject *__pyx_pf_3_sa_7IntList_16__getitem__(struct __pyx_obj_3_sa_IntL
     __pyx_t_3 = __pyx_v_j;
     for (__pyx_v_k = __pyx_v_i; __pyx_v_k < __pyx_t_3; __pyx_v_k++) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":105
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":106
  *             result = ()
  *             for k from i <= k < j:
  *                 result = result + (self.arr[k],)             # <<<<<<<<<<<<<<
  *             return result
  *         else:
  */
-      __pyx_t_9 = PyInt_FromLong((__pyx_v_self->arr[__pyx_v_k])); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 105; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_9 = PyInt_FromLong((__pyx_v_self->arr[__pyx_v_k])); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 106; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_9);
-      __pyx_t_10 = PyTuple_New(1); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 105; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_10 = PyTuple_New(1); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 106; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_10);
       PyTuple_SET_ITEM(__pyx_t_10, 0, __pyx_t_9);
       __Pyx_GIVEREF(__pyx_t_9);
       __pyx_t_9 = 0;
-      __pyx_t_9 = PyNumber_Add(((PyObject *)__pyx_v_result), ((PyObject *)__pyx_t_10)); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 105; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_9 = PyNumber_Add(((PyObject *)__pyx_v_result), ((PyObject *)__pyx_t_10)); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 106; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(((PyObject *)__pyx_t_9));
       __Pyx_DECREF(((PyObject *)__pyx_t_10)); __pyx_t_10 = 0;
       __Pyx_DECREF(((PyObject *)__pyx_v_result));
@@ -5362,7 +5751,7 @@ static PyObject *__pyx_pf_3_sa_7IntList_16__getitem__(struct __pyx_obj_3_sa_IntL
       __pyx_t_9 = 0;
     }
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":106
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":107
  *             for k from i <= k < j:
  *                 result = result + (self.arr[k],)
  *             return result             # <<<<<<<<<<<<<<
@@ -5377,26 +5766,26 @@ static PyObject *__pyx_pf_3_sa_7IntList_16__getitem__(struct __pyx_obj_3_sa_IntL
   }
   /*else*/ {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":108
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":109
  *             return result
  *         else:
  *             raise TypeError("Illegal key type %s for IntList" % type(index))             # <<<<<<<<<<<<<<
  * 
  *     cdef void set(self, int i, int val):
  */
-    __pyx_t_9 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_9), ((PyObject *)Py_TYPE(__pyx_v_index))); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 108; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_9 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_9), ((PyObject *)Py_TYPE(__pyx_v_index))); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 109; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(((PyObject *)__pyx_t_9));
-    __pyx_t_10 = PyTuple_New(1); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 108; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_10 = PyTuple_New(1); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 109; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_10);
     PyTuple_SET_ITEM(__pyx_t_10, 0, ((PyObject *)__pyx_t_9));
     __Pyx_GIVEREF(((PyObject *)__pyx_t_9));
     __pyx_t_9 = 0;
-    __pyx_t_9 = PyObject_Call(__pyx_builtin_TypeError, ((PyObject *)__pyx_t_10), NULL); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 108; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_9 = PyObject_Call(__pyx_builtin_TypeError, ((PyObject *)__pyx_t_10), NULL); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 109; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_9);
     __Pyx_DECREF(((PyObject *)__pyx_t_10)); __pyx_t_10 = 0;
     __Pyx_Raise(__pyx_t_9, 0, 0, 0);
     __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
-    {__pyx_filename = __pyx_f[2]; __pyx_lineno = 108; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    {__pyx_filename = __pyx_f[2]; __pyx_lineno = 109; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   }
   __pyx_L3:;
 
@@ -5416,7 +5805,7 @@ static PyObject *__pyx_pf_3_sa_7IntList_16__getitem__(struct __pyx_obj_3_sa_IntL
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":110
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":111
  *             raise TypeError("Illegal key type %s for IntList" % type(index))
  * 
  *     cdef void set(self, int i, int val):             # <<<<<<<<<<<<<<
@@ -5438,7 +5827,7 @@ static void __pyx_f_3_sa_7IntList_set(struct __pyx_obj_3_sa_IntList *__pyx_v_sel
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("set", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":111
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":112
  * 
  *     cdef void set(self, int i, int val):
  *         j = i             # <<<<<<<<<<<<<<
@@ -5447,7 +5836,7 @@ static void __pyx_f_3_sa_7IntList_set(struct __pyx_obj_3_sa_IntList *__pyx_v_sel
  */
   __pyx_v_j = __pyx_v_i;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":112
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":113
  *     cdef void set(self, int i, int val):
  *         j = i
  *         if i<0:             # <<<<<<<<<<<<<<
@@ -5457,7 +5846,7 @@ static void __pyx_f_3_sa_7IntList_set(struct __pyx_obj_3_sa_IntList *__pyx_v_sel
   __pyx_t_1 = (__pyx_v_i < 0);
   if (__pyx_t_1) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":113
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":114
  *         j = i
  *         if i<0:
  *             j = self.len + i             # <<<<<<<<<<<<<<
@@ -5469,7 +5858,7 @@ static void __pyx_f_3_sa_7IntList_set(struct __pyx_obj_3_sa_IntList *__pyx_v_sel
   }
   __pyx_L3:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":114
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":115
  *         if i<0:
  *             j = self.len + i
  *         if j<0 or j>=self.len:             # <<<<<<<<<<<<<<
@@ -5485,18 +5874,18 @@ static void __pyx_f_3_sa_7IntList_set(struct __pyx_obj_3_sa_IntList *__pyx_v_sel
   }
   if (__pyx_t_3) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":115
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":116
  *             j = self.len + i
  *         if j<0 or j>=self.len:
  *             raise IndexError("Requested index %d of %d-length IntList" % (i, self.len))             # <<<<<<<<<<<<<<
  *         self.arr[j] = val
  * 
  */
-    __pyx_t_4 = PyInt_FromLong(__pyx_v_i); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 115; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyInt_FromLong(__pyx_v_i); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 116; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_5 = PyInt_FromLong(__pyx_v_self->len); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 115; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyInt_FromLong(__pyx_v_self->len); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 116; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
-    __pyx_t_6 = PyTuple_New(2); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 115; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = PyTuple_New(2); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 116; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
     PyTuple_SET_ITEM(__pyx_t_6, 0, __pyx_t_4);
     __Pyx_GIVEREF(__pyx_t_4);
@@ -5504,25 +5893,25 @@ static void __pyx_f_3_sa_7IntList_set(struct __pyx_obj_3_sa_IntList *__pyx_v_sel
     __Pyx_GIVEREF(__pyx_t_5);
     __pyx_t_4 = 0;
     __pyx_t_5 = 0;
-    __pyx_t_5 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_7), ((PyObject *)__pyx_t_6)); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 115; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_7), ((PyObject *)__pyx_t_6)); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 116; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(((PyObject *)__pyx_t_5));
     __Pyx_DECREF(((PyObject *)__pyx_t_6)); __pyx_t_6 = 0;
-    __pyx_t_6 = PyTuple_New(1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 115; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = PyTuple_New(1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 116; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
     PyTuple_SET_ITEM(__pyx_t_6, 0, ((PyObject *)__pyx_t_5));
     __Pyx_GIVEREF(((PyObject *)__pyx_t_5));
     __pyx_t_5 = 0;
-    __pyx_t_5 = PyObject_Call(__pyx_builtin_IndexError, ((PyObject *)__pyx_t_6), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 115; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyObject_Call(__pyx_builtin_IndexError, ((PyObject *)__pyx_t_6), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 116; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
     __Pyx_DECREF(((PyObject *)__pyx_t_6)); __pyx_t_6 = 0;
     __Pyx_Raise(__pyx_t_5, 0, 0, 0);
     __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-    {__pyx_filename = __pyx_f[2]; __pyx_lineno = 115; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    {__pyx_filename = __pyx_f[2]; __pyx_lineno = 116; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     goto __pyx_L4;
   }
   __pyx_L4:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":116
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":117
  *         if j<0 or j>=self.len:
  *             raise IndexError("Requested index %d of %d-length IntList" % (i, self.len))
  *         self.arr[j] = val             # <<<<<<<<<<<<<<
@@ -5542,17 +5931,17 @@ static void __pyx_f_3_sa_7IntList_set(struct __pyx_obj_3_sa_IntList *__pyx_v_sel
 }
 
 /* Python wrapper */
-static int __pyx_pw_3_sa_7IntList_19__setitem__(PyObject *__pyx_v_self, PyObject *__pyx_v_i, PyObject *__pyx_v_val); /*proto*/
-static int __pyx_pw_3_sa_7IntList_19__setitem__(PyObject *__pyx_v_self, PyObject *__pyx_v_i, PyObject *__pyx_v_val) {
+static int __pyx_pw_3_sa_7IntList_22__setitem__(PyObject *__pyx_v_self, PyObject *__pyx_v_i, PyObject *__pyx_v_val); /*proto*/
+static int __pyx_pw_3_sa_7IntList_22__setitem__(PyObject *__pyx_v_self, PyObject *__pyx_v_i, PyObject *__pyx_v_val) {
   int __pyx_r;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__setitem__ (wrapper)", 0);
-  __pyx_r = __pyx_pf_3_sa_7IntList_18__setitem__(((struct __pyx_obj_3_sa_IntList *)__pyx_v_self), ((PyObject *)__pyx_v_i), ((PyObject *)__pyx_v_val));
+  __pyx_r = __pyx_pf_3_sa_7IntList_21__setitem__(((struct __pyx_obj_3_sa_IntList *)__pyx_v_self), ((PyObject *)__pyx_v_i), ((PyObject *)__pyx_v_val));
   __Pyx_RefNannyFinishContext();
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":118
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":119
  *         self.arr[j] = val
  * 
  *     def __setitem__(self, i, val):             # <<<<<<<<<<<<<<
@@ -5560,7 +5949,7 @@ static int __pyx_pw_3_sa_7IntList_19__setitem__(PyObject *__pyx_v_self, PyObject
  * 
  */
 
-static int __pyx_pf_3_sa_7IntList_18__setitem__(struct __pyx_obj_3_sa_IntList *__pyx_v_self, PyObject *__pyx_v_i, PyObject *__pyx_v_val) {
+static int __pyx_pf_3_sa_7IntList_21__setitem__(struct __pyx_obj_3_sa_IntList *__pyx_v_self, PyObject *__pyx_v_i, PyObject *__pyx_v_val) {
   int __pyx_r;
   __Pyx_RefNannyDeclarations
   int __pyx_t_1;
@@ -5570,15 +5959,15 @@ static int __pyx_pf_3_sa_7IntList_18__setitem__(struct __pyx_obj_3_sa_IntList *_
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__setitem__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":119
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":120
  * 
  *     def __setitem__(self, i, val):
  *         self.set(i, val)             # <<<<<<<<<<<<<<
  * 
  *     def __len__(self):
  */
-  __pyx_t_1 = __Pyx_PyInt_AsInt(__pyx_v_i); if (unlikely((__pyx_t_1 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 119; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_t_2 = __Pyx_PyInt_AsInt(__pyx_v_val); if (unlikely((__pyx_t_2 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 119; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_PyInt_AsInt(__pyx_v_i); if (unlikely((__pyx_t_1 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 120; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = __Pyx_PyInt_AsInt(__pyx_v_val); if (unlikely((__pyx_t_2 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 120; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   ((struct __pyx_vtabstruct_3_sa_IntList *)__pyx_v_self->__pyx_vtab)->set(__pyx_v_self, __pyx_t_1, __pyx_t_2);
 
   __pyx_r = 0;
@@ -5592,17 +5981,17 @@ static int __pyx_pf_3_sa_7IntList_18__setitem__(struct __pyx_obj_3_sa_IntList *_
 }
 
 /* Python wrapper */
-static Py_ssize_t __pyx_pw_3_sa_7IntList_21__len__(PyObject *__pyx_v_self); /*proto*/
-static Py_ssize_t __pyx_pw_3_sa_7IntList_21__len__(PyObject *__pyx_v_self) {
+static Py_ssize_t __pyx_pw_3_sa_7IntList_24__len__(PyObject *__pyx_v_self); /*proto*/
+static Py_ssize_t __pyx_pw_3_sa_7IntList_24__len__(PyObject *__pyx_v_self) {
   Py_ssize_t __pyx_r;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__len__ (wrapper)", 0);
-  __pyx_r = __pyx_pf_3_sa_7IntList_20__len__(((struct __pyx_obj_3_sa_IntList *)__pyx_v_self));
+  __pyx_r = __pyx_pf_3_sa_7IntList_23__len__(((struct __pyx_obj_3_sa_IntList *)__pyx_v_self));
   __Pyx_RefNannyFinishContext();
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":121
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":122
  *         self.set(i, val)
  * 
  *     def __len__(self):             # <<<<<<<<<<<<<<
@@ -5610,12 +5999,12 @@ static Py_ssize_t __pyx_pw_3_sa_7IntList_21__len__(PyObject *__pyx_v_self) {
  * 
  */
 
-static Py_ssize_t __pyx_pf_3_sa_7IntList_20__len__(struct __pyx_obj_3_sa_IntList *__pyx_v_self) {
+static Py_ssize_t __pyx_pf_3_sa_7IntList_23__len__(struct __pyx_obj_3_sa_IntList *__pyx_v_self) {
   Py_ssize_t __pyx_r;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__len__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":122
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":123
  * 
  *     def __len__(self):
  *         return self.len             # <<<<<<<<<<<<<<
@@ -5632,17 +6021,17 @@ static Py_ssize_t __pyx_pf_3_sa_7IntList_20__len__(struct __pyx_obj_3_sa_IntList
 }
 
 /* Python wrapper */
-static PyObject *__pyx_pw_3_sa_7IntList_23getSize(PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *unused); /*proto*/
-static PyObject *__pyx_pw_3_sa_7IntList_23getSize(PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *unused) {
+static PyObject *__pyx_pw_3_sa_7IntList_26getSize(PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *unused); /*proto*/
+static PyObject *__pyx_pw_3_sa_7IntList_26getSize(PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *unused) {
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("getSize (wrapper)", 0);
-  __pyx_r = __pyx_pf_3_sa_7IntList_22getSize(((struct __pyx_obj_3_sa_IntList *)__pyx_v_self));
+  __pyx_r = __pyx_pf_3_sa_7IntList_25getSize(((struct __pyx_obj_3_sa_IntList *)__pyx_v_self));
   __Pyx_RefNannyFinishContext();
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":124
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":125
  *         return self.len
  * 
  *     def getSize(self):             # <<<<<<<<<<<<<<
@@ -5650,7 +6039,7 @@ static PyObject *__pyx_pw_3_sa_7IntList_23getSize(PyObject *__pyx_v_self, CYTHON
  * 
  */
 
-static PyObject *__pyx_pf_3_sa_7IntList_22getSize(struct __pyx_obj_3_sa_IntList *__pyx_v_self) {
+static PyObject *__pyx_pf_3_sa_7IntList_25getSize(struct __pyx_obj_3_sa_IntList *__pyx_v_self) {
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
   PyObject *__pyx_t_1 = NULL;
@@ -5659,7 +6048,7 @@ static PyObject *__pyx_pf_3_sa_7IntList_22getSize(struct __pyx_obj_3_sa_IntList
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("getSize", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":125
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":126
  * 
  *     def getSize(self):
  *         return self.size             # <<<<<<<<<<<<<<
@@ -5667,7 +6056,7 @@ static PyObject *__pyx_pf_3_sa_7IntList_22getSize(struct __pyx_obj_3_sa_IntList
  *     def append(self, int val):
  */
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = PyInt_FromLong(__pyx_v_self->size); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 125; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyInt_FromLong(__pyx_v_self->size); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 126; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_r = __pyx_t_1;
   __pyx_t_1 = 0;
@@ -5686,14 +6075,14 @@ static PyObject *__pyx_pf_3_sa_7IntList_22getSize(struct __pyx_obj_3_sa_IntList
 }
 
 /* Python wrapper */
-static PyObject *__pyx_pw_3_sa_7IntList_25append(PyObject *__pyx_v_self, PyObject *__pyx_arg_val); /*proto*/
-static PyObject *__pyx_pw_3_sa_7IntList_25append(PyObject *__pyx_v_self, PyObject *__pyx_arg_val) {
+static PyObject *__pyx_pw_3_sa_7IntList_28append(PyObject *__pyx_v_self, PyObject *__pyx_arg_val); /*proto*/
+static PyObject *__pyx_pw_3_sa_7IntList_28append(PyObject *__pyx_v_self, PyObject *__pyx_arg_val) {
   int __pyx_v_val;
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("append (wrapper)", 0);
   assert(__pyx_arg_val); {
-    __pyx_v_val = __Pyx_PyInt_AsInt(__pyx_arg_val); if (unlikely((__pyx_v_val == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 127; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+    __pyx_v_val = __Pyx_PyInt_AsInt(__pyx_arg_val); if (unlikely((__pyx_v_val == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 128; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L3_error:;
@@ -5701,12 +6090,12 @@ static PyObject *__pyx_pw_3_sa_7IntList_25append(PyObject *__pyx_v_self, PyObjec
   __Pyx_RefNannyFinishContext();
   return NULL;
   __pyx_L4_argument_unpacking_done:;
-  __pyx_r = __pyx_pf_3_sa_7IntList_24append(((struct __pyx_obj_3_sa_IntList *)__pyx_v_self), ((int)__pyx_v_val));
+  __pyx_r = __pyx_pf_3_sa_7IntList_27append(((struct __pyx_obj_3_sa_IntList *)__pyx_v_self), ((int)__pyx_v_val));
   __Pyx_RefNannyFinishContext();
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":127
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":128
  *         return self.size
  * 
  *     def append(self, int val):             # <<<<<<<<<<<<<<
@@ -5714,12 +6103,12 @@ static PyObject *__pyx_pw_3_sa_7IntList_25append(PyObject *__pyx_v_self, PyObjec
  * 
  */
 
-static PyObject *__pyx_pf_3_sa_7IntList_24append(struct __pyx_obj_3_sa_IntList *__pyx_v_self, int __pyx_v_val) {
+static PyObject *__pyx_pf_3_sa_7IntList_27append(struct __pyx_obj_3_sa_IntList *__pyx_v_self, int __pyx_v_val) {
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("append", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":128
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":129
  * 
  *     def append(self, int val):
  *         self._append(val)             # <<<<<<<<<<<<<<
@@ -5734,7 +6123,7 @@ static PyObject *__pyx_pf_3_sa_7IntList_24append(struct __pyx_obj_3_sa_IntList *
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":130
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":131
  *         self._append(val)
  * 
  *     cdef void _append(self, int val):             # <<<<<<<<<<<<<<
@@ -5747,7 +6136,7 @@ static void __pyx_f_3_sa_7IntList__append(struct __pyx_obj_3_sa_IntList *__pyx_v
   int __pyx_t_1;
   __Pyx_RefNannySetupContext("_append", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":131
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":132
  * 
  *     cdef void _append(self, int val):
  *         if self.len == self.size:             # <<<<<<<<<<<<<<
@@ -5757,7 +6146,7 @@ static void __pyx_f_3_sa_7IntList__append(struct __pyx_obj_3_sa_IntList *__pyx_v
   __pyx_t_1 = (__pyx_v_self->len == __pyx_v_self->size);
   if (__pyx_t_1) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":132
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":133
  *     cdef void _append(self, int val):
  *         if self.len == self.size:
  *             self.size = self.size + self.increment             # <<<<<<<<<<<<<<
@@ -5766,7 +6155,7 @@ static void __pyx_f_3_sa_7IntList__append(struct __pyx_obj_3_sa_IntList *__pyx_v
  */
     __pyx_v_self->size = (__pyx_v_self->size + __pyx_v_self->increment);
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":133
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":134
  *         if self.len == self.size:
  *             self.size = self.size + self.increment
  *             self.arr = <int*> realloc(self.arr, self.size*sizeof(int))             # <<<<<<<<<<<<<<
@@ -5778,7 +6167,7 @@ static void __pyx_f_3_sa_7IntList__append(struct __pyx_obj_3_sa_IntList *__pyx_v
   }
   __pyx_L3:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":134
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":135
  *             self.size = self.size + self.increment
  *             self.arr = <int*> realloc(self.arr, self.size*sizeof(int))
  *         self.arr[self.len] = val             # <<<<<<<<<<<<<<
@@ -5787,7 +6176,7 @@ static void __pyx_f_3_sa_7IntList__append(struct __pyx_obj_3_sa_IntList *__pyx_v
  */
   (__pyx_v_self->arr[__pyx_v_self->len]) = __pyx_v_val;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":135
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":136
  *             self.arr = <int*> realloc(self.arr, self.size*sizeof(int))
  *         self.arr[self.len] = val
  *         self.len = self.len + 1             # <<<<<<<<<<<<<<
@@ -5800,17 +6189,17 @@ static void __pyx_f_3_sa_7IntList__append(struct __pyx_obj_3_sa_IntList *__pyx_v
 }
 
 /* Python wrapper */
-static PyObject *__pyx_pw_3_sa_7IntList_27extend(PyObject *__pyx_v_self, PyObject *__pyx_v_other); /*proto*/
-static PyObject *__pyx_pw_3_sa_7IntList_27extend(PyObject *__pyx_v_self, PyObject *__pyx_v_other) {
+static PyObject *__pyx_pw_3_sa_7IntList_30extend(PyObject *__pyx_v_self, PyObject *__pyx_v_other); /*proto*/
+static PyObject *__pyx_pw_3_sa_7IntList_30extend(PyObject *__pyx_v_self, PyObject *__pyx_v_other) {
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("extend (wrapper)", 0);
-  __pyx_r = __pyx_pf_3_sa_7IntList_26extend(((struct __pyx_obj_3_sa_IntList *)__pyx_v_self), ((PyObject *)__pyx_v_other));
+  __pyx_r = __pyx_pf_3_sa_7IntList_29extend(((struct __pyx_obj_3_sa_IntList *)__pyx_v_self), ((PyObject *)__pyx_v_other));
   __Pyx_RefNannyFinishContext();
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":137
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":138
  *         self.len = self.len + 1
  * 
  *     def extend(self, other):             # <<<<<<<<<<<<<<
@@ -5818,7 +6207,7 @@ static PyObject *__pyx_pw_3_sa_7IntList_27extend(PyObject *__pyx_v_self, PyObjec
  * 
  */
 
-static PyObject *__pyx_pf_3_sa_7IntList_26extend(struct __pyx_obj_3_sa_IntList *__pyx_v_self, PyObject *__pyx_v_other) {
+static PyObject *__pyx_pf_3_sa_7IntList_29extend(struct __pyx_obj_3_sa_IntList *__pyx_v_self, PyObject *__pyx_v_other) {
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
   PyObject *__pyx_t_1 = NULL;
@@ -5827,14 +6216,14 @@ static PyObject *__pyx_pf_3_sa_7IntList_26extend(struct __pyx_obj_3_sa_IntList *
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("extend", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":138
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":139
  * 
  *     def extend(self, other):
  *         self._extend(other)             # <<<<<<<<<<<<<<
  * 
  *     cdef void _extend(self, IntList other):
  */
-  if (!(likely(((__pyx_v_other) == Py_None) || likely(__Pyx_TypeTest(__pyx_v_other, __pyx_ptype_3_sa_IntList))))) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 138; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (!(likely(((__pyx_v_other) == Py_None) || likely(__Pyx_TypeTest(__pyx_v_other, __pyx_ptype_3_sa_IntList))))) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 139; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_t_1 = __pyx_v_other;
   __Pyx_INCREF(__pyx_t_1);
   ((struct __pyx_vtabstruct_3_sa_IntList *)__pyx_v_self->__pyx_vtab)->_extend(__pyx_v_self, ((struct __pyx_obj_3_sa_IntList *)__pyx_t_1));
@@ -5852,7 +6241,7 @@ static PyObject *__pyx_pf_3_sa_7IntList_26extend(struct __pyx_obj_3_sa_IntList *
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":140
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":141
  *         self._extend(other)
  * 
  *     cdef void _extend(self, IntList other):             # <<<<<<<<<<<<<<
@@ -5864,7 +6253,7 @@ static void __pyx_f_3_sa_7IntList__extend(struct __pyx_obj_3_sa_IntList *__pyx_v
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("_extend", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":141
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":142
  * 
  *     cdef void _extend(self, IntList other):
  *         self._extend_arr(other.arr, other.len)             # <<<<<<<<<<<<<<
@@ -5876,7 +6265,7 @@ static void __pyx_f_3_sa_7IntList__extend(struct __pyx_obj_3_sa_IntList *__pyx_v
   __Pyx_RefNannyFinishContext();
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":143
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":144
  *         self._extend_arr(other.arr, other.len)
  * 
  *     cdef void _extend_arr(self, int* other, int other_len):             # <<<<<<<<<<<<<<
@@ -5889,7 +6278,7 @@ static void __pyx_f_3_sa_7IntList__extend_arr(struct __pyx_obj_3_sa_IntList *__p
   int __pyx_t_1;
   __Pyx_RefNannySetupContext("_extend_arr", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":144
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":145
  * 
  *     cdef void _extend_arr(self, int* other, int other_len):
  *         if self.size < self.len + other_len:             # <<<<<<<<<<<<<<
@@ -5899,7 +6288,7 @@ static void __pyx_f_3_sa_7IntList__extend_arr(struct __pyx_obj_3_sa_IntList *__p
   __pyx_t_1 = (__pyx_v_self->size < (__pyx_v_self->len + __pyx_v_other_len));
   if (__pyx_t_1) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":145
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":146
  *     cdef void _extend_arr(self, int* other, int other_len):
  *         if self.size < self.len + other_len:
  *             self.size = self.len + other_len             # <<<<<<<<<<<<<<
@@ -5908,7 +6297,7 @@ static void __pyx_f_3_sa_7IntList__extend_arr(struct __pyx_obj_3_sa_IntList *__p
  */
     __pyx_v_self->size = (__pyx_v_self->len + __pyx_v_other_len);
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":146
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":147
  *         if self.size < self.len + other_len:
  *             self.size = self.len + other_len
  *             self.arr = <int*> realloc(self.arr, self.size*sizeof(int))             # <<<<<<<<<<<<<<
@@ -5920,7 +6309,7 @@ static void __pyx_f_3_sa_7IntList__extend_arr(struct __pyx_obj_3_sa_IntList *__p
   }
   __pyx_L3:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":147
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":148
  *             self.size = self.len + other_len
  *             self.arr = <int*> realloc(self.arr, self.size*sizeof(int))
  *         memcpy(self.arr+self.len, other, other_len*sizeof(int))             # <<<<<<<<<<<<<<
@@ -5929,7 +6318,7 @@ static void __pyx_f_3_sa_7IntList__extend_arr(struct __pyx_obj_3_sa_IntList *__p
  */
   memcpy((__pyx_v_self->arr + __pyx_v_self->len), __pyx_v_other, (__pyx_v_other_len * (sizeof(int))));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":148
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":149
  *             self.arr = <int*> realloc(self.arr, self.size*sizeof(int))
  *         memcpy(self.arr+self.len, other, other_len*sizeof(int))
  *         self.len = self.len + other_len             # <<<<<<<<<<<<<<
@@ -5941,7 +6330,7 @@ static void __pyx_f_3_sa_7IntList__extend_arr(struct __pyx_obj_3_sa_IntList *__p
   __Pyx_RefNannyFinishContext();
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":150
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":151
  *         self.len = self.len + other_len
  * 
  *     cdef void _clear(self):             # <<<<<<<<<<<<<<
@@ -5953,7 +6342,7 @@ static void __pyx_f_3_sa_7IntList__clear(struct __pyx_obj_3_sa_IntList *__pyx_v_
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("_clear", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":151
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":152
  * 
  *     cdef void _clear(self):
  *         free(self.arr)             # <<<<<<<<<<<<<<
@@ -5962,7 +6351,7 @@ static void __pyx_f_3_sa_7IntList__clear(struct __pyx_obj_3_sa_IntList *__pyx_v_
  */
   free(__pyx_v_self->arr);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":152
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":153
  *     cdef void _clear(self):
  *         free(self.arr)
  *         self.len = 0             # <<<<<<<<<<<<<<
@@ -5971,7 +6360,7 @@ static void __pyx_f_3_sa_7IntList__clear(struct __pyx_obj_3_sa_IntList *__pyx_v_
  */
   __pyx_v_self->len = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":153
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":154
  *         free(self.arr)
  *         self.len = 0
  *         self.size = 0             # <<<<<<<<<<<<<<
@@ -5980,7 +6369,7 @@ static void __pyx_f_3_sa_7IntList__clear(struct __pyx_obj_3_sa_IntList *__pyx_v_
  */
   __pyx_v_self->size = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":154
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":155
  *         self.len = 0
  *         self.size = 0
  *         self.arr = <int*> malloc(0)             # <<<<<<<<<<<<<<
@@ -5992,7 +6381,7 @@ static void __pyx_f_3_sa_7IntList__clear(struct __pyx_obj_3_sa_IntList *__pyx_v_
   __Pyx_RefNannyFinishContext();
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":156
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":157
  *         self.arr = <int*> malloc(0)
  * 
  *     cdef void write_handle(self, FILE* f):             # <<<<<<<<<<<<<<
@@ -6004,7 +6393,7 @@ static void __pyx_f_3_sa_7IntList_write_handle(struct __pyx_obj_3_sa_IntList *__
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("write_handle", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":157
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":158
  * 
  *     cdef void write_handle(self, FILE* f):
  *         fwrite(&(self.len), sizeof(int), 1, f)             # <<<<<<<<<<<<<<
@@ -6013,7 +6402,7 @@ static void __pyx_f_3_sa_7IntList_write_handle(struct __pyx_obj_3_sa_IntList *__
  */
   fwrite((&__pyx_v_self->len), (sizeof(int)), 1, __pyx_v_f);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":158
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":159
  *     cdef void write_handle(self, FILE* f):
  *         fwrite(&(self.len), sizeof(int), 1, f)
  *         fwrite(self.arr, sizeof(int), self.len, f)             # <<<<<<<<<<<<<<
@@ -6026,14 +6415,14 @@ static void __pyx_f_3_sa_7IntList_write_handle(struct __pyx_obj_3_sa_IntList *__
 }
 
 /* Python wrapper */
-static PyObject *__pyx_pw_3_sa_7IntList_29write(PyObject *__pyx_v_self, PyObject *__pyx_arg_filename); /*proto*/
-static PyObject *__pyx_pw_3_sa_7IntList_29write(PyObject *__pyx_v_self, PyObject *__pyx_arg_filename) {
+static PyObject *__pyx_pw_3_sa_7IntList_32write(PyObject *__pyx_v_self, PyObject *__pyx_arg_filename); /*proto*/
+static PyObject *__pyx_pw_3_sa_7IntList_32write(PyObject *__pyx_v_self, PyObject *__pyx_arg_filename) {
   char *__pyx_v_filename;
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("write (wrapper)", 0);
   assert(__pyx_arg_filename); {
-    __pyx_v_filename = PyBytes_AsString(__pyx_arg_filename); if (unlikely((!__pyx_v_filename) && PyErr_Occurred())) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 160; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+    __pyx_v_filename = PyBytes_AsString(__pyx_arg_filename); if (unlikely((!__pyx_v_filename) && PyErr_Occurred())) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 161; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L3_error:;
@@ -6041,12 +6430,12 @@ static PyObject *__pyx_pw_3_sa_7IntList_29write(PyObject *__pyx_v_self, PyObject
   __Pyx_RefNannyFinishContext();
   return NULL;
   __pyx_L4_argument_unpacking_done:;
-  __pyx_r = __pyx_pf_3_sa_7IntList_28write(((struct __pyx_obj_3_sa_IntList *)__pyx_v_self), ((char *)__pyx_v_filename));
+  __pyx_r = __pyx_pf_3_sa_7IntList_31write(((struct __pyx_obj_3_sa_IntList *)__pyx_v_self), ((char *)__pyx_v_filename));
   __Pyx_RefNannyFinishContext();
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":160
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":161
  *         fwrite(self.arr, sizeof(int), self.len, f)
  * 
  *     def write(self, char* filename):             # <<<<<<<<<<<<<<
@@ -6054,13 +6443,13 @@ static PyObject *__pyx_pw_3_sa_7IntList_29write(PyObject *__pyx_v_self, PyObject
  *         f = fopen(filename, "w")
  */
 
-static PyObject *__pyx_pf_3_sa_7IntList_28write(struct __pyx_obj_3_sa_IntList *__pyx_v_self, char *__pyx_v_filename) {
+static PyObject *__pyx_pf_3_sa_7IntList_31write(struct __pyx_obj_3_sa_IntList *__pyx_v_self, char *__pyx_v_filename) {
   FILE *__pyx_v_f;
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("write", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":162
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":163
  *     def write(self, char* filename):
  *         cdef FILE* f
  *         f = fopen(filename, "w")             # <<<<<<<<<<<<<<
@@ -6069,7 +6458,7 @@ static PyObject *__pyx_pf_3_sa_7IntList_28write(struct __pyx_obj_3_sa_IntList *_
  */
   __pyx_v_f = fopen(__pyx_v_filename, __pyx_k__w);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":163
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":164
  *         cdef FILE* f
  *         f = fopen(filename, "w")
  *         self.write_handle(f)             # <<<<<<<<<<<<<<
@@ -6078,7 +6467,7 @@ static PyObject *__pyx_pf_3_sa_7IntList_28write(struct __pyx_obj_3_sa_IntList *_
  */
   ((struct __pyx_vtabstruct_3_sa_IntList *)__pyx_v_self->__pyx_vtab)->write_handle(__pyx_v_self, __pyx_v_f);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":164
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":165
  *         f = fopen(filename, "w")
  *         self.write_handle(f)
  *         fclose(f)             # <<<<<<<<<<<<<<
@@ -6093,7 +6482,7 @@ static PyObject *__pyx_pf_3_sa_7IntList_28write(struct __pyx_obj_3_sa_IntList *_
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":166
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":167
  *         fclose(f)
  * 
  *     cdef void read_handle(self, FILE* f):             # <<<<<<<<<<<<<<
@@ -6105,7 +6494,7 @@ static void __pyx_f_3_sa_7IntList_read_handle(struct __pyx_obj_3_sa_IntList *__p
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("read_handle", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":167
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":168
  * 
  *     cdef void read_handle(self, FILE* f):
  *         (self.arr)             # <<<<<<<<<<<<<<
@@ -6114,7 +6503,7 @@ static void __pyx_f_3_sa_7IntList_read_handle(struct __pyx_obj_3_sa_IntList *__p
  */
   __pyx_v_self->arr;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":168
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":169
  *     cdef void read_handle(self, FILE* f):
  *         (self.arr)
  *         fread(&(self.len), sizeof(int), 1, f)             # <<<<<<<<<<<<<<
@@ -6123,7 +6512,7 @@ static void __pyx_f_3_sa_7IntList_read_handle(struct __pyx_obj_3_sa_IntList *__p
  */
   fread((&__pyx_v_self->len), (sizeof(int)), 1, __pyx_v_f);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":169
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":170
  *         (self.arr)
  *         fread(&(self.len), sizeof(int), 1, f)
  *         self.arr = <int*> malloc(self.len * sizeof(int))             # <<<<<<<<<<<<<<
@@ -6132,7 +6521,7 @@ static void __pyx_f_3_sa_7IntList_read_handle(struct __pyx_obj_3_sa_IntList *__p
  */
   __pyx_v_self->arr = ((int *)malloc((__pyx_v_self->len * (sizeof(int)))));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":170
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":171
  *         fread(&(self.len), sizeof(int), 1, f)
  *         self.arr = <int*> malloc(self.len * sizeof(int))
  *         self.size = self.len             # <<<<<<<<<<<<<<
@@ -6141,7 +6530,7 @@ static void __pyx_f_3_sa_7IntList_read_handle(struct __pyx_obj_3_sa_IntList *__p
  */
   __pyx_v_self->size = __pyx_v_self->len;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":171
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":172
  *         self.arr = <int*> malloc(self.len * sizeof(int))
  *         self.size = self.len
  *         fread(self.arr, sizeof(int), self.len, f)             # <<<<<<<<<<<<<<
@@ -6154,14 +6543,14 @@ static void __pyx_f_3_sa_7IntList_read_handle(struct __pyx_obj_3_sa_IntList *__p
 }
 
 /* Python wrapper */
-static PyObject *__pyx_pw_3_sa_7IntList_31read(PyObject *__pyx_v_self, PyObject *__pyx_arg_filename); /*proto*/
-static PyObject *__pyx_pw_3_sa_7IntList_31read(PyObject *__pyx_v_self, PyObject *__pyx_arg_filename) {
+static PyObject *__pyx_pw_3_sa_7IntList_34read(PyObject *__pyx_v_self, PyObject *__pyx_arg_filename); /*proto*/
+static PyObject *__pyx_pw_3_sa_7IntList_34read(PyObject *__pyx_v_self, PyObject *__pyx_arg_filename) {
   char *__pyx_v_filename;
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("read (wrapper)", 0);
   assert(__pyx_arg_filename); {
-    __pyx_v_filename = PyBytes_AsString(__pyx_arg_filename); if (unlikely((!__pyx_v_filename) && PyErr_Occurred())) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 173; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+    __pyx_v_filename = PyBytes_AsString(__pyx_arg_filename); if (unlikely((!__pyx_v_filename) && PyErr_Occurred())) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 174; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L3_error:;
@@ -6169,12 +6558,12 @@ static PyObject *__pyx_pw_3_sa_7IntList_31read(PyObject *__pyx_v_self, PyObject
   __Pyx_RefNannyFinishContext();
   return NULL;
   __pyx_L4_argument_unpacking_done:;
-  __pyx_r = __pyx_pf_3_sa_7IntList_30read(((struct __pyx_obj_3_sa_IntList *)__pyx_v_self), ((char *)__pyx_v_filename));
+  __pyx_r = __pyx_pf_3_sa_7IntList_33read(((struct __pyx_obj_3_sa_IntList *)__pyx_v_self), ((char *)__pyx_v_filename));
   __Pyx_RefNannyFinishContext();
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":173
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":174
  *         fread(self.arr, sizeof(int), self.len, f)
  * 
  *     def read(self, char* filename):             # <<<<<<<<<<<<<<
@@ -6182,13 +6571,13 @@ static PyObject *__pyx_pw_3_sa_7IntList_31read(PyObject *__pyx_v_self, PyObject
  *         f = fopen(filename, "r")
  */
 
-static PyObject *__pyx_pf_3_sa_7IntList_30read(struct __pyx_obj_3_sa_IntList *__pyx_v_self, char *__pyx_v_filename) {
+static PyObject *__pyx_pf_3_sa_7IntList_33read(struct __pyx_obj_3_sa_IntList *__pyx_v_self, char *__pyx_v_filename) {
   FILE *__pyx_v_f;
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("read", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":175
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":176
  *     def read(self, char* filename):
  *         cdef FILE* f
  *         f = fopen(filename, "r")             # <<<<<<<<<<<<<<
@@ -6197,7 +6586,7 @@ static PyObject *__pyx_pf_3_sa_7IntList_30read(struct __pyx_obj_3_sa_IntList *__
  */
   __pyx_v_f = fopen(__pyx_v_filename, __pyx_k__r);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":176
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":177
  *         cdef FILE* f
  *         f = fopen(filename, "r")
  *         self.read_handle(f)             # <<<<<<<<<<<<<<
@@ -6205,7 +6594,7 @@ static PyObject *__pyx_pf_3_sa_7IntList_30read(struct __pyx_obj_3_sa_IntList *__
  */
   ((struct __pyx_vtabstruct_3_sa_IntList *)__pyx_v_self->__pyx_vtab)->read_handle(__pyx_v_self, __pyx_v_f);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":177
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/int_list.pxi":178
  *         f = fopen(filename, "r")
  *         self.read_handle(f)
  *         fclose(f)             # <<<<<<<<<<<<<<
@@ -7730,7 +8119,7 @@ static PyObject *__pyx_pw_3_sa_9DataArray_19read_bitext(PyObject *__pyx_v_self,
   __Pyx_RefNannyFinishContext();
   return __pyx_r;
 }
-static PyObject *__pyx_gb_3_sa_9DataArray_11read_bitext_2generator3(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
+static PyObject *__pyx_gb_3_sa_9DataArray_11read_bitext_2generator6(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
 
 /* "/Users/vchahun/Sandbox/cdec/python/src/sa/data_array.pxi":73
  *     def read_bitext(self, char* filename, int side):
@@ -7741,24 +8130,24 @@ static PyObject *__pyx_gb_3_sa_9DataArray_11read_bitext_2generator3(__pyx_Genera
  */
 
 static PyObject *__pyx_pf_3_sa_9DataArray_11read_bitext_genexpr(PyObject *__pyx_self) {
-  struct __pyx_obj_3_sa___pyx_scope_struct_1_genexpr *__pyx_cur_scope;
+  struct __pyx_obj_3_sa___pyx_scope_struct_2_genexpr *__pyx_cur_scope;
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
   int __pyx_lineno = 0;
   const char *__pyx_filename = NULL;
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("genexpr", 0);
-  __pyx_cur_scope = (struct __pyx_obj_3_sa___pyx_scope_struct_1_genexpr *)__pyx_ptype_3_sa___pyx_scope_struct_1_genexpr->tp_new(__pyx_ptype_3_sa___pyx_scope_struct_1_genexpr, __pyx_empty_tuple, NULL);
+  __pyx_cur_scope = (struct __pyx_obj_3_sa___pyx_scope_struct_2_genexpr *)__pyx_ptype_3_sa___pyx_scope_struct_2_genexpr->tp_new(__pyx_ptype_3_sa___pyx_scope_struct_2_genexpr, __pyx_empty_tuple, NULL);
   if (unlikely(!__pyx_cur_scope)) {
     __Pyx_RefNannyFinishContext();
     return NULL;
   }
   __Pyx_GOTREF(__pyx_cur_scope);
-  __pyx_cur_scope->__pyx_outer_scope = (struct __pyx_obj_3_sa___pyx_scope_struct__read_bitext *) __pyx_self;
+  __pyx_cur_scope->__pyx_outer_scope = (struct __pyx_obj_3_sa___pyx_scope_struct_1_read_bitext *) __pyx_self;
   __Pyx_INCREF(((PyObject *)__pyx_cur_scope->__pyx_outer_scope));
   __Pyx_GIVEREF(__pyx_cur_scope->__pyx_outer_scope);
   {
-    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_3_sa_9DataArray_11read_bitext_2generator3, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 73; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_3_sa_9DataArray_11read_bitext_2generator6, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 73; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_cur_scope);
     __Pyx_RefNannyFinishContext();
     return (PyObject *) gen;
@@ -7776,9 +8165,9 @@ static PyObject *__pyx_pf_3_sa_9DataArray_11read_bitext_genexpr(PyObject *__pyx_
   return __pyx_r;
 }
 
-static PyObject *__pyx_gb_3_sa_9DataArray_11read_bitext_2generator3(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
+static PyObject *__pyx_gb_3_sa_9DataArray_11read_bitext_2generator6(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
 {
-  struct __pyx_obj_3_sa___pyx_scope_struct_1_genexpr *__pyx_cur_scope = ((struct __pyx_obj_3_sa___pyx_scope_struct_1_genexpr *)__pyx_generator->closure);
+  struct __pyx_obj_3_sa___pyx_scope_struct_2_genexpr *__pyx_cur_scope = ((struct __pyx_obj_3_sa___pyx_scope_struct_2_genexpr *)__pyx_generator->closure);
   PyObject *__pyx_r = NULL;
   PyObject *__pyx_t_1 = NULL;
   Py_ssize_t __pyx_t_2;
@@ -7888,7 +8277,7 @@ static PyObject *__pyx_gb_3_sa_9DataArray_11read_bitext_2generator3(__pyx_Genera
  */
 
 static PyObject *__pyx_pf_3_sa_9DataArray_18read_bitext(struct __pyx_obj_3_sa_DataArray *__pyx_v_self, char *__pyx_v_filename, int __pyx_v_side) {
-  struct __pyx_obj_3_sa___pyx_scope_struct__read_bitext *__pyx_cur_scope;
+  struct __pyx_obj_3_sa___pyx_scope_struct_1_read_bitext *__pyx_cur_scope;
   PyObject *__pyx_v_data = NULL;
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
@@ -7907,7 +8296,7 @@ static PyObject *__pyx_pf_3_sa_9DataArray_18read_bitext(struct __pyx_obj_3_sa_Da
   const char *__pyx_filename = NULL;
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("read_bitext", 0);
-  __pyx_cur_scope = (struct __pyx_obj_3_sa___pyx_scope_struct__read_bitext *)__pyx_ptype_3_sa___pyx_scope_struct__read_bitext->tp_new(__pyx_ptype_3_sa___pyx_scope_struct__read_bitext, __pyx_empty_tuple, NULL);
+  __pyx_cur_scope = (struct __pyx_obj_3_sa___pyx_scope_struct_1_read_bitext *)__pyx_ptype_3_sa___pyx_scope_struct_1_read_bitext->tp_new(__pyx_ptype_3_sa___pyx_scope_struct_1_read_bitext, __pyx_empty_tuple, NULL);
   if (unlikely(!__pyx_cur_scope)) {
     __Pyx_RefNannyFinishContext();
     return NULL;
@@ -20752,7 +21141,7 @@ static int __pyx_pf_3_sa_3LCP___cinit__(struct __pyx_obj_3_sa_LCP *__pyx_v_self,
   __Pyx_RefNannyFinishContext();
   return __pyx_r;
 }
-static PyObject *__pyx_gb_3_sa_3LCP_4generator(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
+static PyObject *__pyx_gb_3_sa_3LCP_4generator1(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
 
 /* Python wrapper */
 static PyObject *__pyx_pw_3_sa_3LCP_3compute_stats(PyObject *__pyx_v_self, PyObject *__pyx_arg_max_n); /*proto*/
@@ -20785,14 +21174,14 @@ static PyObject *__pyx_pw_3_sa_3LCP_3compute_stats(PyObject *__pyx_v_self, PyObj
  */
 
 static PyObject *__pyx_pf_3_sa_3LCP_2compute_stats(struct __pyx_obj_3_sa_LCP *__pyx_v_self, int __pyx_v_max_n) {
-  struct __pyx_obj_3_sa___pyx_scope_struct_2_compute_stats *__pyx_cur_scope;
+  struct __pyx_obj_3_sa___pyx_scope_struct_3_compute_stats *__pyx_cur_scope;
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
   int __pyx_lineno = 0;
   const char *__pyx_filename = NULL;
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("compute_stats", 0);
-  __pyx_cur_scope = (struct __pyx_obj_3_sa___pyx_scope_struct_2_compute_stats *)__pyx_ptype_3_sa___pyx_scope_struct_2_compute_stats->tp_new(__pyx_ptype_3_sa___pyx_scope_struct_2_compute_stats, __pyx_empty_tuple, NULL);
+  __pyx_cur_scope = (struct __pyx_obj_3_sa___pyx_scope_struct_3_compute_stats *)__pyx_ptype_3_sa___pyx_scope_struct_3_compute_stats->tp_new(__pyx_ptype_3_sa___pyx_scope_struct_3_compute_stats, __pyx_empty_tuple, NULL);
   if (unlikely(!__pyx_cur_scope)) {
     __Pyx_RefNannyFinishContext();
     return NULL;
@@ -20803,7 +21192,7 @@ static PyObject *__pyx_pf_3_sa_3LCP_2compute_stats(struct __pyx_obj_3_sa_LCP *__
   __Pyx_GIVEREF((PyObject *)__pyx_cur_scope->__pyx_v_self);
   __pyx_cur_scope->__pyx_v_max_n = __pyx_v_max_n;
   {
-    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_3_sa_3LCP_4generator, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[9]; __pyx_lineno = 36; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_3_sa_3LCP_4generator1, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[9]; __pyx_lineno = 36; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_cur_scope);
     __Pyx_RefNannyFinishContext();
     return (PyObject *) gen;
@@ -20821,9 +21210,9 @@ static PyObject *__pyx_pf_3_sa_3LCP_2compute_stats(struct __pyx_obj_3_sa_LCP *__
   return __pyx_r;
 }
 
-static PyObject *__pyx_gb_3_sa_3LCP_4generator(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
+static PyObject *__pyx_gb_3_sa_3LCP_4generator1(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
 {
-  struct __pyx_obj_3_sa___pyx_scope_struct_2_compute_stats *__pyx_cur_scope = ((struct __pyx_obj_3_sa___pyx_scope_struct_2_compute_stats *)__pyx_generator->closure);
+  struct __pyx_obj_3_sa___pyx_scope_struct_3_compute_stats *__pyx_cur_scope = ((struct __pyx_obj_3_sa___pyx_scope_struct_3_compute_stats *)__pyx_generator->closure);
   PyObject *__pyx_r = NULL;
   PyObject *__pyx_t_1 = NULL;
   int __pyx_t_2;
@@ -22797,7 +23186,7 @@ static PyObject *__pyx_pf_3_sa_6Phrase_4__str__(struct __pyx_obj_3_sa_Phrase *__
  *         for i from 0 <= i < self.n:
  *             s = self.syms[i]             # <<<<<<<<<<<<<<
  *             strs.append(sym_tostring(s))
- *         return " ".join(strs)
+ *         return ' '.join(strs)
  */
     __pyx_v_s = (__pyx_v_self->syms[__pyx_v_i]);
 
@@ -22805,7 +23194,7 @@ static PyObject *__pyx_pf_3_sa_6Phrase_4__str__(struct __pyx_obj_3_sa_Phrase *__
  *         for i from 0 <= i < self.n:
  *             s = self.syms[i]
  *             strs.append(sym_tostring(s))             # <<<<<<<<<<<<<<
- *         return " ".join(strs)
+ *         return ' '.join(strs)
  * 
  */
     __pyx_t_1 = PyBytes_FromString(__pyx_f_3_sa_sym_tostring(__pyx_v_s)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 33; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
@@ -22817,7 +23206,7 @@ static PyObject *__pyx_pf_3_sa_6Phrase_4__str__(struct __pyx_obj_3_sa_Phrase *__
   /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":34
  *             s = self.syms[i]
  *             strs.append(sym_tostring(s))
- *         return " ".join(strs)             # <<<<<<<<<<<<<<
+ *         return ' '.join(strs)             # <<<<<<<<<<<<<<
  * 
  *     def handle(self):
  */
@@ -22865,7 +23254,7 @@ static PyObject *__pyx_pw_3_sa_6Phrase_7handle(PyObject *__pyx_v_self, CYTHON_UN
 }
 
 /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":36
- *         return " ".join(strs)
+ *         return ' '.join(strs)
  * 
  *     def handle(self):             # <<<<<<<<<<<<<<
  *         """return a hashable representation that normalizes the ordering
@@ -23131,7 +23520,7 @@ static PyObject *__pyx_pf_3_sa_6Phrase_8strhandle(struct __pyx_obj_3_sa_Phrase *
  *                 s = sym_setindex(s,i)
  *                 i = i + 1             # <<<<<<<<<<<<<<
  *             norm.append(sym_tostring(s))
- *         return " ".join(norm)
+ *         return ' '.join(norm)
  */
       __pyx_v_i = (__pyx_v_i + 1);
       goto __pyx_L5;
@@ -23142,7 +23531,7 @@ static PyObject *__pyx_pf_3_sa_6Phrase_8strhandle(struct __pyx_obj_3_sa_Phrase *
  *                 s = sym_setindex(s,i)
  *                 i = i + 1
  *             norm.append(sym_tostring(s))             # <<<<<<<<<<<<<<
- *         return " ".join(norm)
+ *         return ' '.join(norm)
  * 
  */
     __pyx_t_1 = PyBytes_FromString(__pyx_f_3_sa_sym_tostring(__pyx_v_s)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 62; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
@@ -23154,7 +23543,7 @@ static PyObject *__pyx_pf_3_sa_6Phrase_8strhandle(struct __pyx_obj_3_sa_Phrase *
   /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":63
  *                 i = i + 1
  *             norm.append(sym_tostring(s))
- *         return " ".join(norm)             # <<<<<<<<<<<<<<
+ *         return ' '.join(norm)             # <<<<<<<<<<<<<<
  * 
  *     def arity(self):
  */
@@ -23202,7 +23591,7 @@ static PyObject *__pyx_pw_3_sa_6Phrase_11arity(PyObject *__pyx_v_self, CYTHON_UN
 }
 
 /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":65
- *         return " ".join(norm)
+ *         return ' '.join(norm)
  * 
  *     def arity(self):             # <<<<<<<<<<<<<<
  *         return self.n_vars
@@ -24130,7 +24519,7 @@ static PyObject *__pyx_pf_3_sa_6Phrase_26__getitem__(struct __pyx_obj_3_sa_Phras
   __Pyx_RefNannyFinishContext();
   return __pyx_r;
 }
-static PyObject *__pyx_gb_3_sa_6Phrase_30generator1(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
+static PyObject *__pyx_gb_3_sa_6Phrase_30generator2(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
 
 /* Python wrapper */
 static PyObject *__pyx_pw_3_sa_6Phrase_29__iter__(PyObject *__pyx_v_self); /*proto*/
@@ -24152,14 +24541,14 @@ static PyObject *__pyx_pw_3_sa_6Phrase_29__iter__(PyObject *__pyx_v_self) {
  */
 
 static PyObject *__pyx_pf_3_sa_6Phrase_28__iter__(struct __pyx_obj_3_sa_Phrase *__pyx_v_self) {
-  struct __pyx_obj_3_sa___pyx_scope_struct_3___iter__ *__pyx_cur_scope;
+  struct __pyx_obj_3_sa___pyx_scope_struct_4___iter__ *__pyx_cur_scope;
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
   int __pyx_lineno = 0;
   const char *__pyx_filename = NULL;
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__iter__", 0);
-  __pyx_cur_scope = (struct __pyx_obj_3_sa___pyx_scope_struct_3___iter__ *)__pyx_ptype_3_sa___pyx_scope_struct_3___iter__->tp_new(__pyx_ptype_3_sa___pyx_scope_struct_3___iter__, __pyx_empty_tuple, NULL);
+  __pyx_cur_scope = (struct __pyx_obj_3_sa___pyx_scope_struct_4___iter__ *)__pyx_ptype_3_sa___pyx_scope_struct_4___iter__->tp_new(__pyx_ptype_3_sa___pyx_scope_struct_4___iter__, __pyx_empty_tuple, NULL);
   if (unlikely(!__pyx_cur_scope)) {
     __Pyx_RefNannyFinishContext();
     return NULL;
@@ -24169,7 +24558,7 @@ static PyObject *__pyx_pf_3_sa_6Phrase_28__iter__(struct __pyx_obj_3_sa_Phrase *
   __Pyx_INCREF((PyObject *)__pyx_cur_scope->__pyx_v_self);
   __Pyx_GIVEREF((PyObject *)__pyx_cur_scope->__pyx_v_self);
   {
-    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_3_sa_6Phrase_30generator1, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 141; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_3_sa_6Phrase_30generator2, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 141; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_cur_scope);
     __Pyx_RefNannyFinishContext();
     return (PyObject *) gen;
@@ -24187,9 +24576,9 @@ static PyObject *__pyx_pf_3_sa_6Phrase_28__iter__(struct __pyx_obj_3_sa_Phrase *
   return __pyx_r;
 }
 
-static PyObject *__pyx_gb_3_sa_6Phrase_30generator1(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
+static PyObject *__pyx_gb_3_sa_6Phrase_30generator2(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
 {
-  struct __pyx_obj_3_sa___pyx_scope_struct_3___iter__ *__pyx_cur_scope = ((struct __pyx_obj_3_sa___pyx_scope_struct_3___iter__ *)__pyx_generator->closure);
+  struct __pyx_obj_3_sa___pyx_scope_struct_4___iter__ *__pyx_cur_scope = ((struct __pyx_obj_3_sa___pyx_scope_struct_4___iter__ *)__pyx_generator->closure);
   PyObject *__pyx_r = NULL;
   int __pyx_t_1;
   PyObject *__pyx_t_2 = NULL;
@@ -24548,12 +24937,12 @@ static int __pyx_pw_3_sa_4Rule_1__cinit__(PyObject *__pyx_v_self, PyObject *__py
     static PyObject **__pyx_pyargnames[] = {&__pyx_n_s__lhs,&__pyx_n_s__f,&__pyx_n_s__e,&__pyx_n_s__scores,&__pyx_n_s__word_alignments,0};
     PyObject* values[5] = {0,0,0,0,0};
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":162
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":161
+ * cdef class Rule:
  * 
- *     def __cinit__(self, int lhs, Phrase f, Phrase e,
- *             scores=None, word_alignments=None):             # <<<<<<<<<<<<<<
- *         cdef int i, n
- *         cdef char *rest
+ *     def __cinit__(self, int lhs, Phrase f, Phrase e, scores=None, word_alignments=None):             # <<<<<<<<<<<<<<
+ *         if not sym_isvar(lhs): raise Exception('Invalid LHS symbol: %d' % lhs)
+ *         self.lhs = lhs
  */
     values[3] = ((PyObject *)Py_None);
     values[4] = ((PyObject *)Py_None);
@@ -24634,82 +25023,61 @@ static int __pyx_pw_3_sa_4Rule_1__cinit__(PyObject *__pyx_v_self, PyObject *__py
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":161
- * cdef class Rule:
- * 
- *     def __cinit__(self, int lhs, Phrase f, Phrase e,             # <<<<<<<<<<<<<<
- *             scores=None, word_alignments=None):
- *         cdef int i, n
- */
-
 static int __pyx_pf_3_sa_4Rule___cinit__(struct __pyx_obj_3_sa_Rule *__pyx_v_self, int __pyx_v_lhs, struct __pyx_obj_3_sa_Phrase *__pyx_v_f, struct __pyx_obj_3_sa_Phrase *__pyx_v_e, PyObject *__pyx_v_scores, PyObject *__pyx_v_word_alignments) {
-  int __pyx_v_i;
-  int __pyx_v_n;
   int __pyx_r;
   __Pyx_RefNannyDeclarations
   int __pyx_t_1;
   PyObject *__pyx_t_2 = NULL;
   PyObject *__pyx_t_3 = NULL;
-  Py_ssize_t __pyx_t_4;
-  int __pyx_t_5;
-  float __pyx_t_6;
   int __pyx_lineno = 0;
   const char *__pyx_filename = NULL;
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__cinit__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":166
- *         cdef char *rest
- * 
- *         if not sym_isvar(lhs):             # <<<<<<<<<<<<<<
- *             raise Exception('Invalid LHS symbol: %d' % lhs)
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":162
  * 
+ *     def __cinit__(self, int lhs, Phrase f, Phrase e, scores=None, word_alignments=None):
+ *         if not sym_isvar(lhs): raise Exception('Invalid LHS symbol: %d' % lhs)             # <<<<<<<<<<<<<<
+ *         self.lhs = lhs
+ *         self.f = f
  */
   __pyx_t_1 = (!__pyx_f_3_sa_sym_isvar(__pyx_v_lhs));
   if (__pyx_t_1) {
-
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":167
- * 
- *         if not sym_isvar(lhs):
- *             raise Exception('Invalid LHS symbol: %d' % lhs)             # <<<<<<<<<<<<<<
- * 
- *         self.lhs = lhs
- */
-    __pyx_t_2 = PyInt_FromLong(__pyx_v_lhs); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 167; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyInt_FromLong(__pyx_v_lhs); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 162; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_3 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_68), __pyx_t_2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 167; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_68), __pyx_t_2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 162; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(((PyObject *)__pyx_t_3));
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 167; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 162; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_t_3));
     __Pyx_GIVEREF(((PyObject *)__pyx_t_3));
     __pyx_t_3 = 0;
-    __pyx_t_3 = PyObject_Call(__pyx_builtin_Exception, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 167; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_Call(__pyx_builtin_Exception, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 162; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
     __Pyx_Raise(__pyx_t_3, 0, 0, 0);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    {__pyx_filename = __pyx_f[7]; __pyx_lineno = 167; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    {__pyx_filename = __pyx_f[7]; __pyx_lineno = 162; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     goto __pyx_L3;
   }
   __pyx_L3:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":169
- *             raise Exception('Invalid LHS symbol: %d' % lhs)
- * 
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":163
+ *     def __cinit__(self, int lhs, Phrase f, Phrase e, scores=None, word_alignments=None):
+ *         if not sym_isvar(lhs): raise Exception('Invalid LHS symbol: %d' % lhs)
  *         self.lhs = lhs             # <<<<<<<<<<<<<<
  *         self.f = f
  *         self.e = e
  */
   __pyx_v_self->lhs = __pyx_v_lhs;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":170
- * 
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":164
+ *         if not sym_isvar(lhs): raise Exception('Invalid LHS symbol: %d' % lhs)
  *         self.lhs = lhs
  *         self.f = f             # <<<<<<<<<<<<<<
  *         self.e = e
- * 
+ *         self.word_alignments = word_alignments
  */
   __Pyx_INCREF(((PyObject *)__pyx_v_f));
   __Pyx_GIVEREF(((PyObject *)__pyx_v_f));
@@ -24717,12 +25085,12 @@ static int __pyx_pf_3_sa_4Rule___cinit__(struct __pyx_obj_3_sa_Rule *__pyx_v_sel
   __Pyx_DECREF(((PyObject *)__pyx_v_self->f));
   __pyx_v_self->f = __pyx_v_f;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":171
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":165
  *         self.lhs = lhs
  *         self.f = f
  *         self.e = e             # <<<<<<<<<<<<<<
- * 
  *         self.word_alignments = word_alignments
+ *         self.scores = scores
  */
   __Pyx_INCREF(((PyObject *)__pyx_v_e));
   __Pyx_GIVEREF(((PyObject *)__pyx_v_e));
@@ -24730,12 +25098,12 @@ static int __pyx_pf_3_sa_4Rule___cinit__(struct __pyx_obj_3_sa_Rule *__pyx_v_sel
   __Pyx_DECREF(((PyObject *)__pyx_v_self->e));
   __pyx_v_self->e = __pyx_v_e;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":173
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":166
+ *         self.f = f
  *         self.e = e
- * 
  *         self.word_alignments = word_alignments             # <<<<<<<<<<<<<<
- *         if scores is None:
- *             self.cscores = NULL
+ *         self.scores = scores
+ * 
  */
   __Pyx_INCREF(__pyx_v_word_alignments);
   __Pyx_GIVEREF(__pyx_v_word_alignments);
@@ -24743,90 +25111,19 @@ static int __pyx_pf_3_sa_4Rule___cinit__(struct __pyx_obj_3_sa_Rule *__pyx_v_sel
   __Pyx_DECREF(__pyx_v_self->word_alignments);
   __pyx_v_self->word_alignments = __pyx_v_word_alignments;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":174
- * 
- *         self.word_alignments = word_alignments
- *         if scores is None:             # <<<<<<<<<<<<<<
- *             self.cscores = NULL
- *             self.n_scores = 0
- */
-  __pyx_t_1 = (__pyx_v_scores == Py_None);
-  if (__pyx_t_1) {
-
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":175
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":167
+ *         self.e = e
  *         self.word_alignments = word_alignments
- *         if scores is None:
- *             self.cscores = NULL             # <<<<<<<<<<<<<<
- *             self.n_scores = 0
- *         else:
- */
-    __pyx_v_self->cscores = NULL;
-
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":176
- *         if scores is None:
- *             self.cscores = NULL
- *             self.n_scores = 0             # <<<<<<<<<<<<<<
- *         else:
- *             n = len(scores)
- */
-    __pyx_v_self->n_scores = 0;
-    goto __pyx_L4;
-  }
-  /*else*/ {
-
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":178
- *             self.n_scores = 0
- *         else:
- *             n = len(scores)             # <<<<<<<<<<<<<<
- *             self.cscores = <float *>malloc(n*sizeof(float))
- *             self.n_scores = n
- */
-    __pyx_t_4 = PyObject_Length(__pyx_v_scores); if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 178; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __pyx_v_n = __pyx_t_4;
-
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":179
- *         else:
- *             n = len(scores)
- *             self.cscores = <float *>malloc(n*sizeof(float))             # <<<<<<<<<<<<<<
- *             self.n_scores = n
- *             for i from 0 <= i < n:
- */
-    __pyx_v_self->cscores = ((float *)malloc((__pyx_v_n * (sizeof(float)))));
-
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":180
- *             n = len(scores)
- *             self.cscores = <float *>malloc(n*sizeof(float))
- *             self.n_scores = n             # <<<<<<<<<<<<<<
- *             for i from 0 <= i < n:
- *                 self.cscores[i] = scores[i]
- */
-    __pyx_v_self->n_scores = __pyx_v_n;
-
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":181
- *             self.cscores = <float *>malloc(n*sizeof(float))
- *             self.n_scores = n
- *             for i from 0 <= i < n:             # <<<<<<<<<<<<<<
- *                 self.cscores[i] = scores[i]
+ *         self.scores = scores             # <<<<<<<<<<<<<<
  * 
+ *     def __hash__(self):
  */
-    __pyx_t_5 = __pyx_v_n;
-    for (__pyx_v_i = 0; __pyx_v_i < __pyx_t_5; __pyx_v_i++) {
-
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":182
- *             self.n_scores = n
- *             for i from 0 <= i < n:
- *                 self.cscores[i] = scores[i]             # <<<<<<<<<<<<<<
- * 
- *     def __dealloc__(self):
- */
-      __pyx_t_3 = __Pyx_GetItemInt(__pyx_v_scores, __pyx_v_i, sizeof(int), PyInt_FromLong); if (!__pyx_t_3) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 182; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_3);
-      __pyx_t_6 = __pyx_PyFloat_AsFloat(__pyx_t_3); if (unlikely((__pyx_t_6 == (float)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 182; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-      (__pyx_v_self->cscores[__pyx_v_i]) = __pyx_t_6;
-    }
-  }
-  __pyx_L4:;
+  if (!(likely(((__pyx_v_scores) == Py_None) || likely(__Pyx_TypeTest(__pyx_v_scores, __pyx_ptype_3_sa_FeatureVector))))) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 167; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_INCREF(__pyx_v_scores);
+  __Pyx_GIVEREF(__pyx_v_scores);
+  __Pyx_GOTREF(__pyx_v_self->scores);
+  __Pyx_DECREF(((PyObject *)__pyx_v_self->scores));
+  __pyx_v_self->scores = ((struct __pyx_obj_3_sa_FeatureVector *)__pyx_v_scores);
 
   __pyx_r = 0;
   goto __pyx_L0;
@@ -24841,72 +25138,25 @@ static int __pyx_pf_3_sa_4Rule___cinit__(struct __pyx_obj_3_sa_Rule *__pyx_v_sel
 }
 
 /* Python wrapper */
-static void __pyx_pw_3_sa_4Rule_3__dealloc__(PyObject *__pyx_v_self); /*proto*/
-static void __pyx_pw_3_sa_4Rule_3__dealloc__(PyObject *__pyx_v_self) {
-  __Pyx_RefNannyDeclarations
-  __Pyx_RefNannySetupContext("__dealloc__ (wrapper)", 0);
-  __pyx_pf_3_sa_4Rule_2__dealloc__(((struct __pyx_obj_3_sa_Rule *)__pyx_v_self));
-  __Pyx_RefNannyFinishContext();
-}
-
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":184
- *                 self.cscores[i] = scores[i]
- * 
- *     def __dealloc__(self):             # <<<<<<<<<<<<<<
- *         if self.cscores != NULL:
- *             free(self.cscores)
- */
-
-static void __pyx_pf_3_sa_4Rule_2__dealloc__(struct __pyx_obj_3_sa_Rule *__pyx_v_self) {
-  __Pyx_RefNannyDeclarations
-  int __pyx_t_1;
-  __Pyx_RefNannySetupContext("__dealloc__", 0);
-
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":185
- * 
- *     def __dealloc__(self):
- *         if self.cscores != NULL:             # <<<<<<<<<<<<<<
- *             free(self.cscores)
- * 
- */
-  __pyx_t_1 = (__pyx_v_self->cscores != NULL);
-  if (__pyx_t_1) {
-
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":186
- *     def __dealloc__(self):
- *         if self.cscores != NULL:
- *             free(self.cscores)             # <<<<<<<<<<<<<<
- * 
- *     def __hash__(self):
- */
-    free(__pyx_v_self->cscores);
-    goto __pyx_L3;
-  }
-  __pyx_L3:;
-
-  __Pyx_RefNannyFinishContext();
-}
-
-/* Python wrapper */
-static Py_hash_t __pyx_pw_3_sa_4Rule_5__hash__(PyObject *__pyx_v_self); /*proto*/
-static Py_hash_t __pyx_pw_3_sa_4Rule_5__hash__(PyObject *__pyx_v_self) {
+static Py_hash_t __pyx_pw_3_sa_4Rule_3__hash__(PyObject *__pyx_v_self); /*proto*/
+static Py_hash_t __pyx_pw_3_sa_4Rule_3__hash__(PyObject *__pyx_v_self) {
   Py_hash_t __pyx_r;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__hash__ (wrapper)", 0);
-  __pyx_r = __pyx_pf_3_sa_4Rule_4__hash__(((struct __pyx_obj_3_sa_Rule *)__pyx_v_self));
+  __pyx_r = __pyx_pf_3_sa_4Rule_2__hash__(((struct __pyx_obj_3_sa_Rule *)__pyx_v_self));
   __Pyx_RefNannyFinishContext();
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":188
- *             free(self.cscores)
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":169
+ *         self.scores = scores
  * 
  *     def __hash__(self):             # <<<<<<<<<<<<<<
  *         return hash((self.lhs, self.f, self.e))
  * 
  */
 
-static Py_hash_t __pyx_pf_3_sa_4Rule_4__hash__(struct __pyx_obj_3_sa_Rule *__pyx_v_self) {
+static Py_hash_t __pyx_pf_3_sa_4Rule_2__hash__(struct __pyx_obj_3_sa_Rule *__pyx_v_self) {
   Py_hash_t __pyx_r;
   __Pyx_RefNannyDeclarations
   PyObject *__pyx_t_1 = NULL;
@@ -24917,16 +25167,16 @@ static Py_hash_t __pyx_pf_3_sa_4Rule_4__hash__(struct __pyx_obj_3_sa_Rule *__pyx
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__hash__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":189
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":170
  * 
  *     def __hash__(self):
  *         return hash((self.lhs, self.f, self.e))             # <<<<<<<<<<<<<<
  * 
  *     def __cmp__(self, Rule other):
  */
-  __pyx_t_1 = PyInt_FromLong(__pyx_v_self->lhs); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 189; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyInt_FromLong(__pyx_v_self->lhs); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 170; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = PyTuple_New(3); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 189; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyTuple_New(3); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 170; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_t_1);
   __Pyx_GIVEREF(__pyx_t_1);
@@ -24937,7 +25187,7 @@ static Py_hash_t __pyx_pf_3_sa_4Rule_4__hash__(struct __pyx_obj_3_sa_Rule *__pyx
   PyTuple_SET_ITEM(__pyx_t_2, 2, ((PyObject *)__pyx_v_self->e));
   __Pyx_GIVEREF(((PyObject *)__pyx_v_self->e));
   __pyx_t_1 = 0;
-  __pyx_t_3 = PyObject_Hash(((PyObject *)__pyx_t_2)); if (unlikely(__pyx_t_3 == -1)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 189; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_Hash(((PyObject *)__pyx_t_2)); if (unlikely(__pyx_t_3 == -1)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 170; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
   __pyx_r = __pyx_t_3;
   goto __pyx_L0;
@@ -24957,13 +25207,13 @@ static Py_hash_t __pyx_pf_3_sa_4Rule_4__hash__(struct __pyx_obj_3_sa_Rule *__pyx
 
 /* Python wrapper */
 #if PY_MAJOR_VERSION < 3
-static int __pyx_pw_3_sa_4Rule_7__cmp__(PyObject *__pyx_v_self, PyObject *__pyx_v_other); /*proto*/
-static int __pyx_pw_3_sa_4Rule_7__cmp__(PyObject *__pyx_v_self, PyObject *__pyx_v_other) {
+static int __pyx_pw_3_sa_4Rule_5__cmp__(PyObject *__pyx_v_self, PyObject *__pyx_v_other); /*proto*/
+static int __pyx_pw_3_sa_4Rule_5__cmp__(PyObject *__pyx_v_self, PyObject *__pyx_v_other) {
   int __pyx_r;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__cmp__ (wrapper)", 0);
-  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_other), __pyx_ptype_3_sa_Rule, 1, "other", 0))) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 191; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_r = __pyx_pf_3_sa_4Rule_6__cmp__(((struct __pyx_obj_3_sa_Rule *)__pyx_v_self), ((struct __pyx_obj_3_sa_Rule *)__pyx_v_other));
+  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_other), __pyx_ptype_3_sa_Rule, 1, "other", 0))) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 172; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_r = __pyx_pf_3_sa_4Rule_4__cmp__(((struct __pyx_obj_3_sa_Rule *)__pyx_v_self), ((struct __pyx_obj_3_sa_Rule *)__pyx_v_other));
   goto __pyx_L0;
   __pyx_L1_error:;
   __pyx_r = -1;
@@ -24973,16 +25223,16 @@ static int __pyx_pw_3_sa_4Rule_7__cmp__(PyObject *__pyx_v_self, PyObject *__pyx_
 }
 #endif /*!(#if PY_MAJOR_VERSION < 3)*/
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":191
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":172
  *         return hash((self.lhs, self.f, self.e))
  * 
  *     def __cmp__(self, Rule other):             # <<<<<<<<<<<<<<
- *         return cmp((self.lhs, self.f, self.e, self.word_alignments), (other.lhs, other.f, other.e, self.word_alignments))
- * 
+ *         return cmp((self.lhs, self.f, self.e, self.word_alignments),
+ *                 (other.lhs, other.f, other.e, self.word_alignments))
  */
 
 #if PY_MAJOR_VERSION < 3
-static int __pyx_pf_3_sa_4Rule_6__cmp__(struct __pyx_obj_3_sa_Rule *__pyx_v_self, struct __pyx_obj_3_sa_Rule *__pyx_v_other) {
+static int __pyx_pf_3_sa_4Rule_4__cmp__(struct __pyx_obj_3_sa_Rule *__pyx_v_self, struct __pyx_obj_3_sa_Rule *__pyx_v_other) {
   int __pyx_r;
   __Pyx_RefNannyDeclarations
   PyObject *__pyx_t_1 = NULL;
@@ -24994,16 +25244,16 @@ static int __pyx_pf_3_sa_4Rule_6__cmp__(struct __pyx_obj_3_sa_Rule *__pyx_v_self
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__cmp__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":192
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":173
  * 
  *     def __cmp__(self, Rule other):
- *         return cmp((self.lhs, self.f, self.e, self.word_alignments), (other.lhs, other.f, other.e, self.word_alignments))             # <<<<<<<<<<<<<<
+ *         return cmp((self.lhs, self.f, self.e, self.word_alignments),             # <<<<<<<<<<<<<<
+ *                 (other.lhs, other.f, other.e, self.word_alignments))
  * 
- *     def __iadd__(self, Rule other):
  */
-  __pyx_t_1 = PyInt_FromLong(__pyx_v_self->lhs); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 192; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyInt_FromLong(__pyx_v_self->lhs); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 173; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = PyTuple_New(4); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 192; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyTuple_New(4); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 173; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_t_1);
   __Pyx_GIVEREF(__pyx_t_1);
@@ -25017,9 +25267,17 @@ static int __pyx_pf_3_sa_4Rule_6__cmp__(struct __pyx_obj_3_sa_Rule *__pyx_v_self
   PyTuple_SET_ITEM(__pyx_t_2, 3, __pyx_v_self->word_alignments);
   __Pyx_GIVEREF(__pyx_v_self->word_alignments);
   __pyx_t_1 = 0;
-  __pyx_t_1 = PyInt_FromLong(__pyx_v_other->lhs); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 192; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":174
+ *     def __cmp__(self, Rule other):
+ *         return cmp((self.lhs, self.f, self.e, self.word_alignments),
+ *                 (other.lhs, other.f, other.e, self.word_alignments))             # <<<<<<<<<<<<<<
+ * 
+ *     def fmerge(self, Phrase f):
+ */
+  __pyx_t_1 = PyInt_FromLong(__pyx_v_other->lhs); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 174; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_3 = PyTuple_New(4); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 192; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyTuple_New(4); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 174; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_1);
   __Pyx_GIVEREF(__pyx_t_1);
@@ -25033,7 +25291,7 @@ static int __pyx_pf_3_sa_4Rule_6__cmp__(struct __pyx_obj_3_sa_Rule *__pyx_v_self
   PyTuple_SET_ITEM(__pyx_t_3, 3, __pyx_v_self->word_alignments);
   __Pyx_GIVEREF(__pyx_v_self->word_alignments);
   __pyx_t_1 = 0;
-  __pyx_t_1 = PyTuple_New(2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 192; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyTuple_New(2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 173; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   PyTuple_SET_ITEM(__pyx_t_1, 0, ((PyObject *)__pyx_t_2));
   __Pyx_GIVEREF(((PyObject *)__pyx_t_2));
@@ -25041,10 +25299,10 @@ static int __pyx_pf_3_sa_4Rule_6__cmp__(struct __pyx_obj_3_sa_Rule *__pyx_v_self
   __Pyx_GIVEREF(((PyObject *)__pyx_t_3));
   __pyx_t_2 = 0;
   __pyx_t_3 = 0;
-  __pyx_t_3 = PyObject_Call(__pyx_builtin_cmp, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 192; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_Call(__pyx_builtin_cmp, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 173; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
-  __pyx_t_4 = __Pyx_PyInt_AsInt(__pyx_t_3); if (unlikely((__pyx_t_4 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 192; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_4 = __Pyx_PyInt_AsInt(__pyx_t_3); if (unlikely((__pyx_t_4 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 173; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   __pyx_r = __pyx_t_4;
   goto __pyx_L0;
@@ -25064,114 +25322,13 @@ static int __pyx_pf_3_sa_4Rule_6__cmp__(struct __pyx_obj_3_sa_Rule *__pyx_v_self
 #endif /*!(#if PY_MAJOR_VERSION < 3)*/
 
 /* Python wrapper */
-static PyObject *__pyx_pw_3_sa_4Rule_9__iadd__(PyObject *__pyx_v_self, PyObject *__pyx_v_other); /*proto*/
-static PyObject *__pyx_pw_3_sa_4Rule_9__iadd__(PyObject *__pyx_v_self, PyObject *__pyx_v_other) {
-  PyObject *__pyx_r = 0;
-  __Pyx_RefNannyDeclarations
-  __Pyx_RefNannySetupContext("__iadd__ (wrapper)", 0);
-  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_other), __pyx_ptype_3_sa_Rule, 1, "other", 0))) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 194; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_r = __pyx_pf_3_sa_4Rule_8__iadd__(((struct __pyx_obj_3_sa_Rule *)__pyx_v_self), ((struct __pyx_obj_3_sa_Rule *)__pyx_v_other));
-  goto __pyx_L0;
-  __pyx_L1_error:;
-  __pyx_r = NULL;
-  __pyx_L0:;
-  __Pyx_RefNannyFinishContext();
-  return __pyx_r;
-}
-
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":194
- *         return cmp((self.lhs, self.f, self.e, self.word_alignments), (other.lhs, other.f, other.e, self.word_alignments))
- * 
- *     def __iadd__(self, Rule other):             # <<<<<<<<<<<<<<
- *         if self.n_scores != other.n_scores:
- *             raise ValueError
- */
-
-static PyObject *__pyx_pf_3_sa_4Rule_8__iadd__(struct __pyx_obj_3_sa_Rule *__pyx_v_self, struct __pyx_obj_3_sa_Rule *__pyx_v_other) {
-  long __pyx_v_i;
-  PyObject *__pyx_r = NULL;
-  __Pyx_RefNannyDeclarations
-  int __pyx_t_1;
-  int __pyx_t_2;
-  int __pyx_lineno = 0;
-  const char *__pyx_filename = NULL;
-  int __pyx_clineno = 0;
-  __Pyx_RefNannySetupContext("__iadd__", 0);
-
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":195
- * 
- *     def __iadd__(self, Rule other):
- *         if self.n_scores != other.n_scores:             # <<<<<<<<<<<<<<
- *             raise ValueError
- *         for i from 0 <= i < self.n_scores:
- */
-  __pyx_t_1 = (__pyx_v_self->n_scores != __pyx_v_other->n_scores);
-  if (__pyx_t_1) {
-
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":196
- *     def __iadd__(self, Rule other):
- *         if self.n_scores != other.n_scores:
- *             raise ValueError             # <<<<<<<<<<<<<<
- *         for i from 0 <= i < self.n_scores:
- *             self.cscores[i] = self.cscores[i] + other.cscores[i]
- */
-    __Pyx_Raise(__pyx_builtin_ValueError, 0, 0, 0);
-    {__pyx_filename = __pyx_f[7]; __pyx_lineno = 196; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    goto __pyx_L3;
-  }
-  __pyx_L3:;
-
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":197
- *         if self.n_scores != other.n_scores:
- *             raise ValueError
- *         for i from 0 <= i < self.n_scores:             # <<<<<<<<<<<<<<
- *             self.cscores[i] = self.cscores[i] + other.cscores[i]
- *         return self
- */
-  __pyx_t_2 = __pyx_v_self->n_scores;
-  for (__pyx_v_i = 0; __pyx_v_i < __pyx_t_2; __pyx_v_i++) {
-
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":198
- *             raise ValueError
- *         for i from 0 <= i < self.n_scores:
- *             self.cscores[i] = self.cscores[i] + other.cscores[i]             # <<<<<<<<<<<<<<
- *         return self
- * 
- */
-    (__pyx_v_self->cscores[__pyx_v_i]) = ((__pyx_v_self->cscores[__pyx_v_i]) + (__pyx_v_other->cscores[__pyx_v_i]));
-  }
-
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":199
- *         for i from 0 <= i < self.n_scores:
- *             self.cscores[i] = self.cscores[i] + other.cscores[i]
- *         return self             # <<<<<<<<<<<<<<
- * 
- *     def fmerge(self, Phrase f):
- */
-  __Pyx_XDECREF(__pyx_r);
-  __Pyx_INCREF(((PyObject *)__pyx_v_self));
-  __pyx_r = ((PyObject *)__pyx_v_self);
-  goto __pyx_L0;
-
-  __pyx_r = Py_None; __Pyx_INCREF(Py_None);
-  goto __pyx_L0;
-  __pyx_L1_error:;
-  __Pyx_AddTraceback("_sa.Rule.__iadd__", __pyx_clineno, __pyx_lineno, __pyx_filename);
-  __pyx_r = NULL;
-  __pyx_L0:;
-  __Pyx_XGIVEREF(__pyx_r);
-  __Pyx_RefNannyFinishContext();
-  return __pyx_r;
-}
-
-/* Python wrapper */
-static PyObject *__pyx_pw_3_sa_4Rule_11fmerge(PyObject *__pyx_v_self, PyObject *__pyx_v_f); /*proto*/
-static PyObject *__pyx_pw_3_sa_4Rule_11fmerge(PyObject *__pyx_v_self, PyObject *__pyx_v_f) {
+static PyObject *__pyx_pw_3_sa_4Rule_7fmerge(PyObject *__pyx_v_self, PyObject *__pyx_v_f); /*proto*/
+static PyObject *__pyx_pw_3_sa_4Rule_7fmerge(PyObject *__pyx_v_self, PyObject *__pyx_v_f) {
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("fmerge (wrapper)", 0);
-  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_f), __pyx_ptype_3_sa_Phrase, 1, "f", 0))) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 201; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_r = __pyx_pf_3_sa_4Rule_10fmerge(((struct __pyx_obj_3_sa_Rule *)__pyx_v_self), ((struct __pyx_obj_3_sa_Phrase *)__pyx_v_f));
+  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_f), __pyx_ptype_3_sa_Phrase, 1, "f", 0))) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 176; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_r = __pyx_pf_3_sa_4Rule_6fmerge(((struct __pyx_obj_3_sa_Rule *)__pyx_v_self), ((struct __pyx_obj_3_sa_Phrase *)__pyx_v_f));
   goto __pyx_L0;
   __pyx_L1_error:;
   __pyx_r = NULL;
@@ -25180,15 +25337,15 @@ static PyObject *__pyx_pw_3_sa_4Rule_11fmerge(PyObject *__pyx_v_self, PyObject *
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":201
- *         return self
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":176
+ *                 (other.lhs, other.f, other.e, self.word_alignments))
  * 
  *     def fmerge(self, Phrase f):             # <<<<<<<<<<<<<<
  *         if self.f == f:
  *             self.f = f
  */
 
-static PyObject *__pyx_pf_3_sa_4Rule_10fmerge(struct __pyx_obj_3_sa_Rule *__pyx_v_self, struct __pyx_obj_3_sa_Phrase *__pyx_v_f) {
+static PyObject *__pyx_pf_3_sa_4Rule_6fmerge(struct __pyx_obj_3_sa_Rule *__pyx_v_self, struct __pyx_obj_3_sa_Phrase *__pyx_v_f) {
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
   PyObject *__pyx_t_1 = NULL;
@@ -25198,20 +25355,20 @@ static PyObject *__pyx_pf_3_sa_4Rule_10fmerge(struct __pyx_obj_3_sa_Rule *__pyx_
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("fmerge", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":202
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":177
  * 
  *     def fmerge(self, Phrase f):
  *         if self.f == f:             # <<<<<<<<<<<<<<
  *             self.f = f
  * 
  */
-  __pyx_t_1 = PyObject_RichCompare(((PyObject *)__pyx_v_self->f), ((PyObject *)__pyx_v_f), Py_EQ); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 202; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_RichCompare(((PyObject *)__pyx_v_self->f), ((PyObject *)__pyx_v_f), Py_EQ); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 177; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_2 < 0)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 202; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_2 < 0)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 177; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   if (__pyx_t_2) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":203
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":178
  *     def fmerge(self, Phrase f):
  *         if self.f == f:
  *             self.f = f             # <<<<<<<<<<<<<<
@@ -25240,17 +25397,17 @@ static PyObject *__pyx_pf_3_sa_4Rule_10fmerge(struct __pyx_obj_3_sa_Rule *__pyx_
 }
 
 /* Python wrapper */
-static PyObject *__pyx_pw_3_sa_4Rule_13arity(PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *unused); /*proto*/
-static PyObject *__pyx_pw_3_sa_4Rule_13arity(PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *unused) {
+static PyObject *__pyx_pw_3_sa_4Rule_9arity(PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *unused); /*proto*/
+static PyObject *__pyx_pw_3_sa_4Rule_9arity(PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *unused) {
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("arity (wrapper)", 0);
-  __pyx_r = __pyx_pf_3_sa_4Rule_12arity(((struct __pyx_obj_3_sa_Rule *)__pyx_v_self));
+  __pyx_r = __pyx_pf_3_sa_4Rule_8arity(((struct __pyx_obj_3_sa_Rule *)__pyx_v_self));
   __Pyx_RefNannyFinishContext();
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":205
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":180
  *             self.f = f
  * 
  *     def arity(self):             # <<<<<<<<<<<<<<
@@ -25258,7 +25415,7 @@ static PyObject *__pyx_pw_3_sa_4Rule_13arity(PyObject *__pyx_v_self, CYTHON_UNUS
  * 
  */
 
-static PyObject *__pyx_pf_3_sa_4Rule_12arity(struct __pyx_obj_3_sa_Rule *__pyx_v_self) {
+static PyObject *__pyx_pf_3_sa_4Rule_8arity(struct __pyx_obj_3_sa_Rule *__pyx_v_self) {
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
   PyObject *__pyx_t_1 = NULL;
@@ -25268,7 +25425,7 @@ static PyObject *__pyx_pf_3_sa_4Rule_12arity(struct __pyx_obj_3_sa_Rule *__pyx_v
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("arity", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":206
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":181
  * 
  *     def arity(self):
  *         return self.f.arity()             # <<<<<<<<<<<<<<
@@ -25276,9 +25433,9 @@ static PyObject *__pyx_pf_3_sa_4Rule_12arity(struct __pyx_obj_3_sa_Rule *__pyx_v
  *     def __str__(self):
  */
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_v_self->f), __pyx_n_s__arity); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 206; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_v_self->f), __pyx_n_s__arity); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 181; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 206; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 181; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __pyx_r = __pyx_t_2;
@@ -25299,557 +25456,498 @@ static PyObject *__pyx_pf_3_sa_4Rule_12arity(struct __pyx_obj_3_sa_Rule *__pyx_v
 }
 
 /* Python wrapper */
-static PyObject *__pyx_pw_3_sa_4Rule_15__str__(PyObject *__pyx_v_self); /*proto*/
-static PyObject *__pyx_pw_3_sa_4Rule_15__str__(PyObject *__pyx_v_self) {
+static PyObject *__pyx_pw_3_sa_4Rule_11__str__(PyObject *__pyx_v_self); /*proto*/
+static PyObject *__pyx_pw_3_sa_4Rule_11__str__(PyObject *__pyx_v_self) {
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__str__ (wrapper)", 0);
-  __pyx_r = __pyx_pf_3_sa_4Rule_14__str__(((struct __pyx_obj_3_sa_Rule *)__pyx_v_self));
+  __pyx_r = __pyx_pf_3_sa_4Rule_10__str__(((struct __pyx_obj_3_sa_Rule *)__pyx_v_self));
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+static PyObject *__pyx_gb_3_sa_4Rule_7__str___2generator7(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
+
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":187
+ *         fields = [sym_tostring(self.lhs), str(self.f), str(self.e), str(self.scores)]
+ *         if self.word_alignments is not None:
+ *             fields.append(' '.join('%d-%d' % a for a in self.alignments()))             # <<<<<<<<<<<<<<
+ *         return ' ||| '.join(fields)
+ * 
+ */
+
+static PyObject *__pyx_pf_3_sa_4Rule_7__str___genexpr(PyObject *__pyx_self) {
+  struct __pyx_obj_3_sa___pyx_scope_struct_6_genexpr *__pyx_cur_scope;
+  PyObject *__pyx_r = NULL;
+  __Pyx_RefNannyDeclarations
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
+  __Pyx_RefNannySetupContext("genexpr", 0);
+  __pyx_cur_scope = (struct __pyx_obj_3_sa___pyx_scope_struct_6_genexpr *)__pyx_ptype_3_sa___pyx_scope_struct_6_genexpr->tp_new(__pyx_ptype_3_sa___pyx_scope_struct_6_genexpr, __pyx_empty_tuple, NULL);
+  if (unlikely(!__pyx_cur_scope)) {
+    __Pyx_RefNannyFinishContext();
+    return NULL;
+  }
+  __Pyx_GOTREF(__pyx_cur_scope);
+  __pyx_cur_scope->__pyx_outer_scope = (struct __pyx_obj_3_sa___pyx_scope_struct_5___str__ *) __pyx_self;
+  __Pyx_INCREF(((PyObject *)__pyx_cur_scope->__pyx_outer_scope));
+  __Pyx_GIVEREF(__pyx_cur_scope->__pyx_outer_scope);
+  {
+    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_3_sa_4Rule_7__str___2generator7, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 187; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_DECREF(__pyx_cur_scope);
+    __Pyx_RefNannyFinishContext();
+    return (PyObject *) gen;
+  }
+
+  __pyx_r = Py_None; __Pyx_INCREF(Py_None);
+  goto __pyx_L0;
+  __pyx_L1_error:;
+  __Pyx_AddTraceback("_sa.Rule.__str__.genexpr", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __pyx_r = NULL;
+  __pyx_L0:;
+  __Pyx_DECREF(((PyObject *)__pyx_cur_scope));
+  __Pyx_XGIVEREF(__pyx_r);
   __Pyx_RefNannyFinishContext();
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":208
+static PyObject *__pyx_gb_3_sa_4Rule_7__str___2generator7(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
+{
+  struct __pyx_obj_3_sa___pyx_scope_struct_6_genexpr *__pyx_cur_scope = ((struct __pyx_obj_3_sa___pyx_scope_struct_6_genexpr *)__pyx_generator->closure);
+  PyObject *__pyx_r = NULL;
+  PyObject *__pyx_t_1 = NULL;
+  PyObject *__pyx_t_2 = NULL;
+  Py_ssize_t __pyx_t_3;
+  PyObject *(*__pyx_t_4)(PyObject *);
+  __Pyx_RefNannyDeclarations
+  __Pyx_RefNannySetupContext("None", 0);
+  switch (__pyx_generator->resume_label) {
+    case 0: goto __pyx_L3_first_run;
+    case 1: goto __pyx_L6_resume_from_yield;
+    default: /* CPython raises the right error here */
+    __Pyx_RefNannyFinishContext();
+    return NULL;
+  }
+  __pyx_L3_first_run:;
+  if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 187; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (unlikely(!__pyx_cur_scope->__pyx_outer_scope->__pyx_v_self)) { __Pyx_RaiseClosureNameError("self"); {__pyx_filename = __pyx_f[7]; __pyx_lineno = 187; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+  __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_cur_scope->__pyx_outer_scope->__pyx_v_self), __pyx_n_s__alignments); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 187; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_1);
+  __pyx_t_2 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 187; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  if (PyList_CheckExact(__pyx_t_2) || PyTuple_CheckExact(__pyx_t_2)) {
+    __pyx_t_1 = __pyx_t_2; __Pyx_INCREF(__pyx_t_1); __pyx_t_3 = 0;
+    __pyx_t_4 = NULL;
+  } else {
+    __pyx_t_3 = -1; __pyx_t_1 = PyObject_GetIter(__pyx_t_2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 187; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_1);
+    __pyx_t_4 = Py_TYPE(__pyx_t_1)->tp_iternext;
+  }
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+  for (;;) {
+    if (!__pyx_t_4 && PyList_CheckExact(__pyx_t_1)) {
+      if (__pyx_t_3 >= PyList_GET_SIZE(__pyx_t_1)) break;
+      #if CYTHON_COMPILING_IN_CPYTHON
+      __pyx_t_2 = PyList_GET_ITEM(__pyx_t_1, __pyx_t_3); __Pyx_INCREF(__pyx_t_2); __pyx_t_3++;
+      #else
+      __pyx_t_2 = PySequence_ITEM(__pyx_t_1, __pyx_t_3); __pyx_t_3++; if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 187; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+      #endif
+    } else if (!__pyx_t_4 && PyTuple_CheckExact(__pyx_t_1)) {
+      if (__pyx_t_3 >= PyTuple_GET_SIZE(__pyx_t_1)) break;
+      #if CYTHON_COMPILING_IN_CPYTHON
+      __pyx_t_2 = PyTuple_GET_ITEM(__pyx_t_1, __pyx_t_3); __Pyx_INCREF(__pyx_t_2); __pyx_t_3++;
+      #else
+      __pyx_t_2 = PySequence_ITEM(__pyx_t_1, __pyx_t_3); __pyx_t_3++; if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 187; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+      #endif
+    } else {
+      __pyx_t_2 = __pyx_t_4(__pyx_t_1);
+      if (unlikely(!__pyx_t_2)) {
+        if (PyErr_Occurred()) {
+          if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
+          else {__pyx_filename = __pyx_f[7]; __pyx_lineno = 187; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        }
+        break;
+      }
+      __Pyx_GOTREF(__pyx_t_2);
+    }
+    __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_a);
+    __Pyx_XDECREF(__pyx_cur_scope->__pyx_v_a);
+    __Pyx_GIVEREF(__pyx_t_2);
+    __pyx_cur_scope->__pyx_v_a = __pyx_t_2;
+    __pyx_t_2 = 0;
+    __pyx_t_2 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_69), __pyx_cur_scope->__pyx_v_a); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 187; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(((PyObject *)__pyx_t_2));
+    __pyx_r = ((PyObject *)__pyx_t_2);
+    __pyx_t_2 = 0;
+    __Pyx_XGIVEREF(__pyx_t_1);
+    __pyx_cur_scope->__pyx_t_0 = __pyx_t_1;
+    __pyx_cur_scope->__pyx_t_1 = __pyx_t_3;
+    __pyx_cur_scope->__pyx_t_2 = __pyx_t_4;
+    __Pyx_XGIVEREF(__pyx_r);
+    __Pyx_RefNannyFinishContext();
+    /* return from generator, yielding value */
+    __pyx_generator->resume_label = 1;
+    return __pyx_r;
+    __pyx_L6_resume_from_yield:;
+    __pyx_t_1 = __pyx_cur_scope->__pyx_t_0;
+    __pyx_cur_scope->__pyx_t_0 = 0;
+    __Pyx_XGOTREF(__pyx_t_1);
+    __pyx_t_3 = __pyx_cur_scope->__pyx_t_1;
+    __pyx_t_4 = __pyx_cur_scope->__pyx_t_2;
+    if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 187; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  }
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  PyErr_SetNone(PyExc_StopIteration);
+  goto __pyx_L0;
+  __pyx_L1_error:;
+  __Pyx_XDECREF(__pyx_t_1);
+  __Pyx_XDECREF(__pyx_t_2);
+  __Pyx_AddTraceback("genexpr", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __pyx_L0:;
+  __Pyx_XDECREF(__pyx_r);
+  __pyx_generator->resume_label = -1;
+  __Pyx_Generator_clear((PyObject*)__pyx_generator);
+  __Pyx_RefNannyFinishContext();
+  return NULL;
+}
+
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":183
  *         return self.f.arity()
  * 
  *     def __str__(self):             # <<<<<<<<<<<<<<
- *         scorestrs = []
- *         for i from 0 <= i < self.n_scores:
+ *         cdef unsigned i
+ *         fields = [sym_tostring(self.lhs), str(self.f), str(self.e), str(self.scores)]
  */
 
-static PyObject *__pyx_pf_3_sa_4Rule_14__str__(struct __pyx_obj_3_sa_Rule *__pyx_v_self) {
-  PyObject *__pyx_v_scorestrs = NULL;
-  long __pyx_v_i;
+static PyObject *__pyx_pf_3_sa_4Rule_10__str__(struct __pyx_obj_3_sa_Rule *__pyx_v_self) {
+  struct __pyx_obj_3_sa___pyx_scope_struct_5___str__ *__pyx_cur_scope;
   PyObject *__pyx_v_fields = NULL;
-  PyObject *__pyx_v_alignstr = NULL;
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
   PyObject *__pyx_t_1 = NULL;
-  int __pyx_t_2;
+  PyObject *__pyx_t_2 = NULL;
   PyObject *__pyx_t_3 = NULL;
-  int __pyx_t_4;
+  PyObject *__pyx_t_4 = NULL;
   PyObject *__pyx_t_5 = NULL;
-  PyObject *__pyx_t_6 = NULL;
-  PyObject *__pyx_t_7 = NULL;
-  PyObject *__pyx_t_8 = NULL;
-  int __pyx_t_9;
-  Py_ssize_t __pyx_t_10;
+  int __pyx_t_6;
+  int __pyx_t_7;
   int __pyx_lineno = 0;
   const char *__pyx_filename = NULL;
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__str__", 0);
-
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":209
- * 
- *     def __str__(self):
- *         scorestrs = []             # <<<<<<<<<<<<<<
- *         for i from 0 <= i < self.n_scores:
- *             scorestrs.append(str(self.cscores[i]))
- */
-  __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 209; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  __pyx_v_scorestrs = __pyx_t_1;
-  __pyx_t_1 = 0;
-
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":210
- *     def __str__(self):
- *         scorestrs = []
- *         for i from 0 <= i < self.n_scores:             # <<<<<<<<<<<<<<
- *             scorestrs.append(str(self.cscores[i]))
- *         fields = [sym_tostring(self.lhs), str(self.f), str(self.e), " ".join(scorestrs)]
- */
-  __pyx_t_2 = __pyx_v_self->n_scores;
-  for (__pyx_v_i = 0; __pyx_v_i < __pyx_t_2; __pyx_v_i++) {
-
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":211
- *         scorestrs = []
- *         for i from 0 <= i < self.n_scores:
- *             scorestrs.append(str(self.cscores[i]))             # <<<<<<<<<<<<<<
- *         fields = [sym_tostring(self.lhs), str(self.f), str(self.e), " ".join(scorestrs)]
- *         if self.word_alignments is not None:
- */
-    __pyx_t_1 = PyFloat_FromDouble((__pyx_v_self->cscores[__pyx_v_i])); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 211; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 211; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_3);
-    PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_1);
-    __Pyx_GIVEREF(__pyx_t_1);
-    __pyx_t_1 = 0;
-    __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)(&PyString_Type))), ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 211; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_1);
-    __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
-    __pyx_t_4 = PyList_Append(__pyx_v_scorestrs, __pyx_t_1); if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 211; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_cur_scope = (struct __pyx_obj_3_sa___pyx_scope_struct_5___str__ *)__pyx_ptype_3_sa___pyx_scope_struct_5___str__->tp_new(__pyx_ptype_3_sa___pyx_scope_struct_5___str__, __pyx_empty_tuple, NULL);
+  if (unlikely(!__pyx_cur_scope)) {
+    __Pyx_RefNannyFinishContext();
+    return NULL;
   }
+  __Pyx_GOTREF(__pyx_cur_scope);
+  __pyx_cur_scope->__pyx_v_self = __pyx_v_self;
+  __Pyx_INCREF((PyObject *)__pyx_cur_scope->__pyx_v_self);
+  __Pyx_GIVEREF((PyObject *)__pyx_cur_scope->__pyx_v_self);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":212
- *         for i from 0 <= i < self.n_scores:
- *             scorestrs.append(str(self.cscores[i]))
- *         fields = [sym_tostring(self.lhs), str(self.f), str(self.e), " ".join(scorestrs)]             # <<<<<<<<<<<<<<
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":185
+ *     def __str__(self):
+ *         cdef unsigned i
+ *         fields = [sym_tostring(self.lhs), str(self.f), str(self.e), str(self.scores)]             # <<<<<<<<<<<<<<
  *         if self.word_alignments is not None:
- *             alignstr = []
+ *             fields.append(' '.join('%d-%d' % a for a in self.alignments()))
  */
-  __pyx_t_1 = PyBytes_FromString(__pyx_f_3_sa_sym_tostring(__pyx_v_self->lhs)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 212; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyBytes_FromString(__pyx_f_3_sa_sym_tostring(__pyx_cur_scope->__pyx_v_self->lhs)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 185; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_1));
-  __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 212; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 185; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __Pyx_INCREF(((PyObject *)__pyx_cur_scope->__pyx_v_self->f));
+  PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_cur_scope->__pyx_v_self->f));
+  __Pyx_GIVEREF(((PyObject *)__pyx_cur_scope->__pyx_v_self->f));
+  __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)(&PyString_Type))), ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 185; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
-  __Pyx_INCREF(((PyObject *)__pyx_v_self->f));
-  PyTuple_SET_ITEM(__pyx_t_3, 0, ((PyObject *)__pyx_v_self->f));
-  __Pyx_GIVEREF(((PyObject *)__pyx_v_self->f));
-  __pyx_t_5 = PyObject_Call(((PyObject *)((PyObject*)(&PyString_Type))), ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 212; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
+  __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 185; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __Pyx_INCREF(((PyObject *)__pyx_cur_scope->__pyx_v_self->e));
+  PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_cur_scope->__pyx_v_self->e));
+  __Pyx_GIVEREF(((PyObject *)__pyx_cur_scope->__pyx_v_self->e));
+  __pyx_t_4 = PyObject_Call(((PyObject *)((PyObject*)(&PyString_Type))), ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 185; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
+  __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 185; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __Pyx_INCREF(((PyObject *)__pyx_cur_scope->__pyx_v_self->scores));
+  PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_cur_scope->__pyx_v_self->scores));
+  __Pyx_GIVEREF(((PyObject *)__pyx_cur_scope->__pyx_v_self->scores));
+  __pyx_t_5 = PyObject_Call(((PyObject *)((PyObject*)(&PyString_Type))), ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 185; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_5);
-  __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
-  __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 212; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_3);
-  __Pyx_INCREF(((PyObject *)__pyx_v_self->e));
-  PyTuple_SET_ITEM(__pyx_t_3, 0, ((PyObject *)__pyx_v_self->e));
-  __Pyx_GIVEREF(((PyObject *)__pyx_v_self->e));
-  __pyx_t_6 = PyObject_Call(((PyObject *)((PyObject*)(&PyString_Type))), ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 212; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_6);
-  __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
-  __pyx_t_3 = PyObject_GetAttr(((PyObject *)__pyx_kp_s_67), __pyx_n_s__join); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 212; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_3);
-  __pyx_t_7 = PyTuple_New(1); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 212; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_7);
-  __Pyx_INCREF(((PyObject *)__pyx_v_scorestrs));
-  PyTuple_SET_ITEM(__pyx_t_7, 0, ((PyObject *)__pyx_v_scorestrs));
-  __Pyx_GIVEREF(((PyObject *)__pyx_v_scorestrs));
-  __pyx_t_8 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_7), NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 212; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_8);
-  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  __Pyx_DECREF(((PyObject *)__pyx_t_7)); __pyx_t_7 = 0;
-  __pyx_t_7 = PyList_New(4); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 212; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_7);
-  PyList_SET_ITEM(__pyx_t_7, 0, ((PyObject *)__pyx_t_1));
+  __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
+  __pyx_t_2 = PyList_New(4); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 185; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  PyList_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_t_1));
   __Pyx_GIVEREF(((PyObject *)__pyx_t_1));
-  PyList_SET_ITEM(__pyx_t_7, 1, __pyx_t_5);
+  PyList_SET_ITEM(__pyx_t_2, 1, __pyx_t_3);
+  __Pyx_GIVEREF(__pyx_t_3);
+  PyList_SET_ITEM(__pyx_t_2, 2, __pyx_t_4);
+  __Pyx_GIVEREF(__pyx_t_4);
+  PyList_SET_ITEM(__pyx_t_2, 3, __pyx_t_5);
   __Pyx_GIVEREF(__pyx_t_5);
-  PyList_SET_ITEM(__pyx_t_7, 2, __pyx_t_6);
-  __Pyx_GIVEREF(__pyx_t_6);
-  PyList_SET_ITEM(__pyx_t_7, 3, __pyx_t_8);
-  __Pyx_GIVEREF(__pyx_t_8);
   __pyx_t_1 = 0;
+  __pyx_t_3 = 0;
+  __pyx_t_4 = 0;
   __pyx_t_5 = 0;
-  __pyx_t_6 = 0;
-  __pyx_t_8 = 0;
-  __pyx_v_fields = __pyx_t_7;
-  __pyx_t_7 = 0;
+  __pyx_v_fields = __pyx_t_2;
+  __pyx_t_2 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":213
- *             scorestrs.append(str(self.cscores[i]))
- *         fields = [sym_tostring(self.lhs), str(self.f), str(self.e), " ".join(scorestrs)]
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":186
+ *         cdef unsigned i
+ *         fields = [sym_tostring(self.lhs), str(self.f), str(self.e), str(self.scores)]
  *         if self.word_alignments is not None:             # <<<<<<<<<<<<<<
- *             alignstr = []
- *             for i from 0 <= i < len(self.word_alignments):
+ *             fields.append(' '.join('%d-%d' % a for a in self.alignments()))
+ *         return ' ||| '.join(fields)
  */
-  __pyx_t_9 = (__pyx_v_self->word_alignments != Py_None);
-  if (__pyx_t_9) {
+  __pyx_t_6 = (__pyx_cur_scope->__pyx_v_self->word_alignments != Py_None);
+  if (__pyx_t_6) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":214
- *         fields = [sym_tostring(self.lhs), str(self.f), str(self.e), " ".join(scorestrs)]
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":187
+ *         fields = [sym_tostring(self.lhs), str(self.f), str(self.e), str(self.scores)]
  *         if self.word_alignments is not None:
- *             alignstr = []             # <<<<<<<<<<<<<<
- *             for i from 0 <= i < len(self.word_alignments):
- *                 alignstr.append("%d-%d" % (self.word_alignments[i]/65536, self.word_alignments[i]%65536))
- */
-    __pyx_t_7 = PyList_New(0); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 214; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_7);
-    __pyx_v_alignstr = __pyx_t_7;
-    __pyx_t_7 = 0;
-
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":215
- *         if self.word_alignments is not None:
- *             alignstr = []
- *             for i from 0 <= i < len(self.word_alignments):             # <<<<<<<<<<<<<<
- *                 alignstr.append("%d-%d" % (self.word_alignments[i]/65536, self.word_alignments[i]%65536))
- *             #for s,t in self.word_alignments:
- */
-    __pyx_t_7 = __pyx_v_self->word_alignments;
-    __Pyx_INCREF(__pyx_t_7);
-    __pyx_t_10 = PyObject_Length(__pyx_t_7); if (unlikely(__pyx_t_10 == -1)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 215; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-    for (__pyx_v_i = 0; __pyx_v_i < __pyx_t_10; __pyx_v_i++) {
-
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":216
- *             alignstr = []
- *             for i from 0 <= i < len(self.word_alignments):
- *                 alignstr.append("%d-%d" % (self.word_alignments[i]/65536, self.word_alignments[i]%65536))             # <<<<<<<<<<<<<<
- *             #for s,t in self.word_alignments:
- *                  #alignstr.append("%d-%d" % (s,t))
- */
-      __pyx_t_7 = __Pyx_GetItemInt(__pyx_v_self->word_alignments, __pyx_v_i, sizeof(long), PyInt_FromLong); if (!__pyx_t_7) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 216; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_7);
-      __pyx_t_8 = __Pyx_PyNumber_Divide(__pyx_t_7, __pyx_int_65536); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 216; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_8);
-      __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-      __pyx_t_7 = __Pyx_GetItemInt(__pyx_v_self->word_alignments, __pyx_v_i, sizeof(long), PyInt_FromLong); if (!__pyx_t_7) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 216; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_7);
-      __pyx_t_6 = PyNumber_Remainder(__pyx_t_7, __pyx_int_65536); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 216; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_6);
-      __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-      __pyx_t_7 = PyTuple_New(2); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 216; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_7);
-      PyTuple_SET_ITEM(__pyx_t_7, 0, __pyx_t_8);
-      __Pyx_GIVEREF(__pyx_t_8);
-      PyTuple_SET_ITEM(__pyx_t_7, 1, __pyx_t_6);
-      __Pyx_GIVEREF(__pyx_t_6);
-      __pyx_t_8 = 0;
-      __pyx_t_6 = 0;
-      __pyx_t_6 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_69), ((PyObject *)__pyx_t_7)); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 216; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_6));
-      __Pyx_DECREF(((PyObject *)__pyx_t_7)); __pyx_t_7 = 0;
-      __pyx_t_4 = PyList_Append(__pyx_v_alignstr, ((PyObject *)__pyx_t_6)); if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 216; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_DECREF(((PyObject *)__pyx_t_6)); __pyx_t_6 = 0;
-    }
-
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":219
- *             #for s,t in self.word_alignments:
- *                  #alignstr.append("%d-%d" % (s,t))
- *             fields.append(" ".join(alignstr))             # <<<<<<<<<<<<<<
+ *             fields.append(' '.join('%d-%d' % a for a in self.alignments()))             # <<<<<<<<<<<<<<
+ *         return ' ||| '.join(fields)
  * 
- *         return " ||| ".join(fields)
  */
-    __pyx_t_6 = PyObject_GetAttr(((PyObject *)__pyx_kp_s_67), __pyx_n_s__join); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 219; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_6);
-    __pyx_t_7 = PyTuple_New(1); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 219; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_7);
-    __Pyx_INCREF(((PyObject *)__pyx_v_alignstr));
-    PyTuple_SET_ITEM(__pyx_t_7, 0, ((PyObject *)__pyx_v_alignstr));
-    __Pyx_GIVEREF(((PyObject *)__pyx_v_alignstr));
-    __pyx_t_8 = PyObject_Call(__pyx_t_6, ((PyObject *)__pyx_t_7), NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 219; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_8);
-    __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-    __Pyx_DECREF(((PyObject *)__pyx_t_7)); __pyx_t_7 = 0;
-    __pyx_t_4 = PyList_Append(__pyx_v_fields, __pyx_t_8); if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 219; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-    goto __pyx_L5;
+    __pyx_t_2 = PyObject_GetAttr(((PyObject *)__pyx_kp_s_67), __pyx_n_s__join); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 187; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_2);
+    __pyx_t_5 = __pyx_pf_3_sa_4Rule_7__str___genexpr(((PyObject*)__pyx_cur_scope)); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 187; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_5);
+    __pyx_t_4 = PyTuple_New(1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 187; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_4);
+    PyTuple_SET_ITEM(__pyx_t_4, 0, __pyx_t_5);
+    __Pyx_GIVEREF(__pyx_t_5);
+    __pyx_t_5 = 0;
+    __pyx_t_5 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 187; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_5);
+    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+    __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
+    __pyx_t_7 = PyList_Append(__pyx_v_fields, __pyx_t_5); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 187; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
+    goto __pyx_L3;
   }
-  __pyx_L5:;
+  __pyx_L3:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":221
- *             fields.append(" ".join(alignstr))
- * 
- *         return " ||| ".join(fields)             # <<<<<<<<<<<<<<
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":188
+ *         if self.word_alignments is not None:
+ *             fields.append(' '.join('%d-%d' % a for a in self.alignments()))
+ *         return ' ||| '.join(fields)             # <<<<<<<<<<<<<<
  * 
- *     property scores:
+ *     def alignments(self):
  */
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_8 = PyObject_GetAttr(((PyObject *)__pyx_kp_s_18), __pyx_n_s__join); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 221; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_8);
-  __pyx_t_7 = PyTuple_New(1); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 221; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_7);
+  __pyx_t_5 = PyObject_GetAttr(((PyObject *)__pyx_kp_s_18), __pyx_n_s__join); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 188; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_5);
+  __pyx_t_4 = PyTuple_New(1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 188; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
   __Pyx_INCREF(((PyObject *)__pyx_v_fields));
-  PyTuple_SET_ITEM(__pyx_t_7, 0, ((PyObject *)__pyx_v_fields));
+  PyTuple_SET_ITEM(__pyx_t_4, 0, ((PyObject *)__pyx_v_fields));
   __Pyx_GIVEREF(((PyObject *)__pyx_v_fields));
-  __pyx_t_6 = PyObject_Call(__pyx_t_8, ((PyObject *)__pyx_t_7), NULL); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 221; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_6);
-  __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-  __Pyx_DECREF(((PyObject *)__pyx_t_7)); __pyx_t_7 = 0;
-  __pyx_r = __pyx_t_6;
-  __pyx_t_6 = 0;
+  __pyx_t_2 = PyObject_Call(__pyx_t_5, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 188; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
+  __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
+  __pyx_r = __pyx_t_2;
+  __pyx_t_2 = 0;
   goto __pyx_L0;
 
   __pyx_r = Py_None; __Pyx_INCREF(Py_None);
   goto __pyx_L0;
   __pyx_L1_error:;
   __Pyx_XDECREF(__pyx_t_1);
+  __Pyx_XDECREF(__pyx_t_2);
   __Pyx_XDECREF(__pyx_t_3);
+  __Pyx_XDECREF(__pyx_t_4);
   __Pyx_XDECREF(__pyx_t_5);
-  __Pyx_XDECREF(__pyx_t_6);
-  __Pyx_XDECREF(__pyx_t_7);
-  __Pyx_XDECREF(__pyx_t_8);
   __Pyx_AddTraceback("_sa.Rule.__str__", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __pyx_r = NULL;
   __pyx_L0:;
-  __Pyx_XDECREF(__pyx_v_scorestrs);
   __Pyx_XDECREF(__pyx_v_fields);
-  __Pyx_XDECREF(__pyx_v_alignstr);
+  __Pyx_DECREF(((PyObject *)__pyx_cur_scope));
   __Pyx_XGIVEREF(__pyx_r);
   __Pyx_RefNannyFinishContext();
   return __pyx_r;
 }
+static PyObject *__pyx_gb_3_sa_4Rule_14generator3(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
 
 /* Python wrapper */
-static PyObject *__pyx_pw_3_sa_4Rule_6scores_1__get__(PyObject *__pyx_v_self); /*proto*/
-static PyObject *__pyx_pw_3_sa_4Rule_6scores_1__get__(PyObject *__pyx_v_self) {
+static PyObject *__pyx_pw_3_sa_4Rule_13alignments(PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *unused); /*proto*/
+static PyObject *__pyx_pw_3_sa_4Rule_13alignments(PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *unused) {
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
-  __Pyx_RefNannySetupContext("__get__ (wrapper)", 0);
-  __pyx_r = __pyx_pf_3_sa_4Rule_6scores___get__(((struct __pyx_obj_3_sa_Rule *)__pyx_v_self));
+  __Pyx_RefNannySetupContext("alignments (wrapper)", 0);
+  __pyx_r = __pyx_pf_3_sa_4Rule_12alignments(((struct __pyx_obj_3_sa_Rule *)__pyx_v_self));
   __Pyx_RefNannyFinishContext();
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":224
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":190
+ *         return ' ||| '.join(fields)
  * 
- *     property scores:
- *         def __get__(self):             # <<<<<<<<<<<<<<
- *             s = [None]*self.n_scores
- *             for i from 0 <= i < self.n_scores:
+ *     def alignments(self):             # <<<<<<<<<<<<<<
+ *         for point in self.word_alignments:
+ *             yield point/65536, point%65536
  */
 
-static PyObject *__pyx_pf_3_sa_4Rule_6scores___get__(struct __pyx_obj_3_sa_Rule *__pyx_v_self) {
-  PyObject *__pyx_v_s = NULL;
-  long __pyx_v_i;
+static PyObject *__pyx_pf_3_sa_4Rule_12alignments(struct __pyx_obj_3_sa_Rule *__pyx_v_self) {
+  struct __pyx_obj_3_sa___pyx_scope_struct_7_alignments *__pyx_cur_scope;
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
-  PyObject *__pyx_t_1 = NULL;
-  int __pyx_t_2;
   int __pyx_lineno = 0;
   const char *__pyx_filename = NULL;
   int __pyx_clineno = 0;
-  __Pyx_RefNannySetupContext("__get__", 0);
-
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":225
- *     property scores:
- *         def __get__(self):
- *             s = [None]*self.n_scores             # <<<<<<<<<<<<<<
- *             for i from 0 <= i < self.n_scores:
- *                 s[i] = self.cscores[i]
- */
-  __pyx_t_1 = PyList_New(1 * ((__pyx_v_self->n_scores<0) ? 0:__pyx_v_self->n_scores)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 225; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  { Py_ssize_t __pyx_temp;
-    for (__pyx_temp=0; __pyx_temp < __pyx_v_self->n_scores; __pyx_temp++) {
-      __Pyx_INCREF(Py_None);
-      PyList_SET_ITEM(__pyx_t_1, __pyx_temp, Py_None);
-      __Pyx_GIVEREF(Py_None);
-    }
+  __Pyx_RefNannySetupContext("alignments", 0);
+  __pyx_cur_scope = (struct __pyx_obj_3_sa___pyx_scope_struct_7_alignments *)__pyx_ptype_3_sa___pyx_scope_struct_7_alignments->tp_new(__pyx_ptype_3_sa___pyx_scope_struct_7_alignments, __pyx_empty_tuple, NULL);
+  if (unlikely(!__pyx_cur_scope)) {
+    __Pyx_RefNannyFinishContext();
+    return NULL;
   }
-  __pyx_v_s = __pyx_t_1;
-  __pyx_t_1 = 0;
-
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":226
- *         def __get__(self):
- *             s = [None]*self.n_scores
- *             for i from 0 <= i < self.n_scores:             # <<<<<<<<<<<<<<
- *                 s[i] = self.cscores[i]
- *             return s
- */
-  __pyx_t_2 = __pyx_v_self->n_scores;
-  for (__pyx_v_i = 0; __pyx_v_i < __pyx_t_2; __pyx_v_i++) {
-
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":227
- *             s = [None]*self.n_scores
- *             for i from 0 <= i < self.n_scores:
- *                 s[i] = self.cscores[i]             # <<<<<<<<<<<<<<
- *             return s
- * 
- */
-    __pyx_t_1 = PyFloat_FromDouble((__pyx_v_self->cscores[__pyx_v_i])); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 227; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_1);
-    if (__Pyx_SetItemInt(((PyObject *)__pyx_v_s), __pyx_v_i, __pyx_t_1, sizeof(long), PyInt_FromLong) < 0) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 227; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __Pyx_GOTREF(__pyx_cur_scope);
+  __pyx_cur_scope->__pyx_v_self = __pyx_v_self;
+  __Pyx_INCREF((PyObject *)__pyx_cur_scope->__pyx_v_self);
+  __Pyx_GIVEREF((PyObject *)__pyx_cur_scope->__pyx_v_self);
+  {
+    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_3_sa_4Rule_14generator3, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 190; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_DECREF(__pyx_cur_scope);
+    __Pyx_RefNannyFinishContext();
+    return (PyObject *) gen;
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":228
- *             for i from 0 <= i < self.n_scores:
- *                 s[i] = self.cscores[i]
- *             return s             # <<<<<<<<<<<<<<
- * 
- *         def __set__(self, s):
- */
-  __Pyx_XDECREF(__pyx_r);
-  __Pyx_INCREF(((PyObject *)__pyx_v_s));
-  __pyx_r = ((PyObject *)__pyx_v_s);
-  goto __pyx_L0;
-
   __pyx_r = Py_None; __Pyx_INCREF(Py_None);
   goto __pyx_L0;
   __pyx_L1_error:;
-  __Pyx_XDECREF(__pyx_t_1);
-  __Pyx_AddTraceback("_sa.Rule.scores.__get__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("_sa.Rule.alignments", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __pyx_r = NULL;
   __pyx_L0:;
-  __Pyx_XDECREF(__pyx_v_s);
+  __Pyx_DECREF(((PyObject *)__pyx_cur_scope));
   __Pyx_XGIVEREF(__pyx_r);
   __Pyx_RefNannyFinishContext();
   return __pyx_r;
 }
 
-/* Python wrapper */
-static int __pyx_pw_3_sa_4Rule_6scores_3__set__(PyObject *__pyx_v_self, PyObject *__pyx_v_s); /*proto*/
-static int __pyx_pw_3_sa_4Rule_6scores_3__set__(PyObject *__pyx_v_self, PyObject *__pyx_v_s) {
-  int __pyx_r;
-  __Pyx_RefNannyDeclarations
-  __Pyx_RefNannySetupContext("__set__ (wrapper)", 0);
-  __pyx_r = __pyx_pf_3_sa_4Rule_6scores_2__set__(((struct __pyx_obj_3_sa_Rule *)__pyx_v_self), ((PyObject *)__pyx_v_s));
-  __Pyx_RefNannyFinishContext();
-  return __pyx_r;
-}
-
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":230
- *             return s
- * 
- *         def __set__(self, s):             # <<<<<<<<<<<<<<
- *             if self.cscores != NULL:
- *                 free(self.cscores)
- */
-
-static int __pyx_pf_3_sa_4Rule_6scores_2__set__(struct __pyx_obj_3_sa_Rule *__pyx_v_self, PyObject *__pyx_v_s) {
-  long __pyx_v_i;
-  int __pyx_r;
-  __Pyx_RefNannyDeclarations
-  int __pyx_t_1;
+static PyObject *__pyx_gb_3_sa_4Rule_14generator3(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
+{
+  struct __pyx_obj_3_sa___pyx_scope_struct_7_alignments *__pyx_cur_scope = ((struct __pyx_obj_3_sa___pyx_scope_struct_7_alignments *)__pyx_generator->closure);
+  PyObject *__pyx_r = NULL;
+  PyObject *__pyx_t_1 = NULL;
   Py_ssize_t __pyx_t_2;
-  int __pyx_t_3;
+  PyObject *(*__pyx_t_3)(PyObject *);
   PyObject *__pyx_t_4 = NULL;
-  float __pyx_t_5;
-  int __pyx_lineno = 0;
-  const char *__pyx_filename = NULL;
-  int __pyx_clineno = 0;
-  __Pyx_RefNannySetupContext("__set__", 0);
+  PyObject *__pyx_t_5 = NULL;
+  PyObject *__pyx_t_6 = NULL;
+  __Pyx_RefNannyDeclarations
+  __Pyx_RefNannySetupContext("None", 0);
+  switch (__pyx_generator->resume_label) {
+    case 0: goto __pyx_L3_first_run;
+    case 1: goto __pyx_L6_resume_from_yield;
+    default: /* CPython raises the right error here */
+    __Pyx_RefNannyFinishContext();
+    return NULL;
+  }
+  __pyx_L3_first_run:;
+  if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 190; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":231
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":191
  * 
- *         def __set__(self, s):
- *             if self.cscores != NULL:             # <<<<<<<<<<<<<<
- *                 free(self.cscores)
- *             self.cscores = <float *>malloc(len(s)*sizeof(float))
- */
-  __pyx_t_1 = (__pyx_v_self->cscores != NULL);
-  if (__pyx_t_1) {
-
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":232
- *         def __set__(self, s):
- *             if self.cscores != NULL:
- *                 free(self.cscores)             # <<<<<<<<<<<<<<
- *             self.cscores = <float *>malloc(len(s)*sizeof(float))
- *             self.n_scores = len(s)
+ *     def alignments(self):
+ *         for point in self.word_alignments:             # <<<<<<<<<<<<<<
+ *             yield point/65536, point%65536
  */
-    free(__pyx_v_self->cscores);
-    goto __pyx_L3;
+  if (PyList_CheckExact(__pyx_cur_scope->__pyx_v_self->word_alignments) || PyTuple_CheckExact(__pyx_cur_scope->__pyx_v_self->word_alignments)) {
+    __pyx_t_1 = __pyx_cur_scope->__pyx_v_self->word_alignments; __Pyx_INCREF(__pyx_t_1); __pyx_t_2 = 0;
+    __pyx_t_3 = NULL;
+  } else {
+    __pyx_t_2 = -1; __pyx_t_1 = PyObject_GetIter(__pyx_cur_scope->__pyx_v_self->word_alignments); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 191; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_1);
+    __pyx_t_3 = Py_TYPE(__pyx_t_1)->tp_iternext;
   }
-  __pyx_L3:;
-
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":233
- *             if self.cscores != NULL:
- *                 free(self.cscores)
- *             self.cscores = <float *>malloc(len(s)*sizeof(float))             # <<<<<<<<<<<<<<
- *             self.n_scores = len(s)
- *             for i from 0 <= i < self.n_scores:
- */
-  __pyx_t_2 = PyObject_Length(__pyx_v_s); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 233; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_v_self->cscores = ((float *)malloc((__pyx_t_2 * (sizeof(float)))));
-
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":234
- *                 free(self.cscores)
- *             self.cscores = <float *>malloc(len(s)*sizeof(float))
- *             self.n_scores = len(s)             # <<<<<<<<<<<<<<
- *             for i from 0 <= i < self.n_scores:
- *                 self.cscores[i] = s[i]
- */
-  __pyx_t_2 = PyObject_Length(__pyx_v_s); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 234; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_v_self->n_scores = __pyx_t_2;
-
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":235
- *             self.cscores = <float *>malloc(len(s)*sizeof(float))
- *             self.n_scores = len(s)
- *             for i from 0 <= i < self.n_scores:             # <<<<<<<<<<<<<<
- *                 self.cscores[i] = s[i]
- */
-  __pyx_t_3 = __pyx_v_self->n_scores;
-  for (__pyx_v_i = 0; __pyx_v_i < __pyx_t_3; __pyx_v_i++) {
+  for (;;) {
+    if (!__pyx_t_3 && PyList_CheckExact(__pyx_t_1)) {
+      if (__pyx_t_2 >= PyList_GET_SIZE(__pyx_t_1)) break;
+      #if CYTHON_COMPILING_IN_CPYTHON
+      __pyx_t_4 = PyList_GET_ITEM(__pyx_t_1, __pyx_t_2); __Pyx_INCREF(__pyx_t_4); __pyx_t_2++;
+      #else
+      __pyx_t_4 = PySequence_ITEM(__pyx_t_1, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 191; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+      #endif
+    } else if (!__pyx_t_3 && PyTuple_CheckExact(__pyx_t_1)) {
+      if (__pyx_t_2 >= PyTuple_GET_SIZE(__pyx_t_1)) break;
+      #if CYTHON_COMPILING_IN_CPYTHON
+      __pyx_t_4 = PyTuple_GET_ITEM(__pyx_t_1, __pyx_t_2); __Pyx_INCREF(__pyx_t_4); __pyx_t_2++;
+      #else
+      __pyx_t_4 = PySequence_ITEM(__pyx_t_1, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 191; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+      #endif
+    } else {
+      __pyx_t_4 = __pyx_t_3(__pyx_t_1);
+      if (unlikely(!__pyx_t_4)) {
+        if (PyErr_Occurred()) {
+          if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
+          else {__pyx_filename = __pyx_f[7]; __pyx_lineno = 191; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        }
+        break;
+      }
+      __Pyx_GOTREF(__pyx_t_4);
+    }
+    __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_point);
+    __Pyx_XDECREF(__pyx_cur_scope->__pyx_v_point);
+    __Pyx_GIVEREF(__pyx_t_4);
+    __pyx_cur_scope->__pyx_v_point = __pyx_t_4;
+    __pyx_t_4 = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":236
- *             self.n_scores = len(s)
- *             for i from 0 <= i < self.n_scores:
- *                 self.cscores[i] = s[i]             # <<<<<<<<<<<<<<
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rule.pxi":192
+ *     def alignments(self):
+ *         for point in self.word_alignments:
+ *             yield point/65536, point%65536             # <<<<<<<<<<<<<<
  */
-    __pyx_t_4 = __Pyx_GetItemInt(__pyx_v_s, __pyx_v_i, sizeof(long), PyInt_FromLong); if (!__pyx_t_4) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 236; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = __Pyx_PyNumber_Divide(__pyx_cur_scope->__pyx_v_point, __pyx_int_65536); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 192; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_5 = __pyx_PyFloat_AsFloat(__pyx_t_4); if (unlikely((__pyx_t_5 == (float)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 236; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    (__pyx_v_self->cscores[__pyx_v_i]) = __pyx_t_5;
+    __pyx_t_5 = PyNumber_Remainder(__pyx_cur_scope->__pyx_v_point, __pyx_int_65536); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 192; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_5);
+    __pyx_t_6 = PyTuple_New(2); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 192; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_6);
+    PyTuple_SET_ITEM(__pyx_t_6, 0, __pyx_t_4);
+    __Pyx_GIVEREF(__pyx_t_4);
+    PyTuple_SET_ITEM(__pyx_t_6, 1, __pyx_t_5);
+    __Pyx_GIVEREF(__pyx_t_5);
+    __pyx_t_4 = 0;
+    __pyx_t_5 = 0;
+    __pyx_r = ((PyObject *)__pyx_t_6);
+    __pyx_t_6 = 0;
+    __Pyx_XGIVEREF(__pyx_t_1);
+    __pyx_cur_scope->__pyx_t_0 = __pyx_t_1;
+    __pyx_cur_scope->__pyx_t_1 = __pyx_t_2;
+    __pyx_cur_scope->__pyx_t_2 = __pyx_t_3;
+    __Pyx_XGIVEREF(__pyx_r);
+    __Pyx_RefNannyFinishContext();
+    /* return from generator, yielding value */
+    __pyx_generator->resume_label = 1;
+    return __pyx_r;
+    __pyx_L6_resume_from_yield:;
+    __pyx_t_1 = __pyx_cur_scope->__pyx_t_0;
+    __pyx_cur_scope->__pyx_t_0 = 0;
+    __Pyx_XGOTREF(__pyx_t_1);
+    __pyx_t_2 = __pyx_cur_scope->__pyx_t_1;
+    __pyx_t_3 = __pyx_cur_scope->__pyx_t_2;
+    if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 192; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   }
-
-  __pyx_r = 0;
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  PyErr_SetNone(PyExc_StopIteration);
   goto __pyx_L0;
   __pyx_L1_error:;
+  __Pyx_XDECREF(__pyx_t_1);
   __Pyx_XDECREF(__pyx_t_4);
-  __Pyx_AddTraceback("_sa.Rule.scores.__set__", __pyx_clineno, __pyx_lineno, __pyx_filename);
-  __pyx_r = -1;
+  __Pyx_XDECREF(__pyx_t_5);
+  __Pyx_XDECREF(__pyx_t_6);
+  __Pyx_AddTraceback("alignments", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __pyx_L0:;
-  __Pyx_RefNannyFinishContext();
-  return __pyx_r;
-}
-
-/* Python wrapper */
-static PyObject *__pyx_pw_3_sa_4Rule_3lhs_1__get__(PyObject *__pyx_v_self); /*proto*/
-static PyObject *__pyx_pw_3_sa_4Rule_3lhs_1__get__(PyObject *__pyx_v_self) {
-  PyObject *__pyx_r = 0;
-  __Pyx_RefNannyDeclarations
-  __Pyx_RefNannySetupContext("__get__ (wrapper)", 0);
-  __pyx_r = __pyx_pf_3_sa_4Rule_3lhs___get__(((struct __pyx_obj_3_sa_Rule *)__pyx_v_self));
-  __Pyx_RefNannyFinishContext();
-  return __pyx_r;
-}
-
-/* "_sa.pxd":8
- * 
- * cdef class Rule:
- *     cdef public int lhs             # <<<<<<<<<<<<<<
- *     cdef readonly Phrase f, e
- *     cdef float *cscores
- */
-
-static PyObject *__pyx_pf_3_sa_4Rule_3lhs___get__(struct __pyx_obj_3_sa_Rule *__pyx_v_self) {
-  PyObject *__pyx_r = NULL;
-  __Pyx_RefNannyDeclarations
-  PyObject *__pyx_t_1 = NULL;
-  int __pyx_lineno = 0;
-  const char *__pyx_filename = NULL;
-  int __pyx_clineno = 0;
-  __Pyx_RefNannySetupContext("__get__", 0);
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = PyInt_FromLong(__pyx_v_self->lhs); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 8; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  __pyx_r = __pyx_t_1;
-  __pyx_t_1 = 0;
-  goto __pyx_L0;
-
-  __pyx_r = Py_None; __Pyx_INCREF(Py_None);
-  goto __pyx_L0;
-  __pyx_L1_error:;
-  __Pyx_XDECREF(__pyx_t_1);
-  __Pyx_AddTraceback("_sa.Rule.lhs.__get__", __pyx_clineno, __pyx_lineno, __pyx_filename);
-  __pyx_r = NULL;
-  __pyx_L0:;
-  __Pyx_XGIVEREF(__pyx_r);
-  __Pyx_RefNannyFinishContext();
-  return __pyx_r;
-}
-
-/* Python wrapper */
-static int __pyx_pw_3_sa_4Rule_3lhs_3__set__(PyObject *__pyx_v_self, PyObject *__pyx_v_value); /*proto*/
-static int __pyx_pw_3_sa_4Rule_3lhs_3__set__(PyObject *__pyx_v_self, PyObject *__pyx_v_value) {
-  int __pyx_r;
-  __Pyx_RefNannyDeclarations
-  __Pyx_RefNannySetupContext("__set__ (wrapper)", 0);
-  __pyx_r = __pyx_pf_3_sa_4Rule_3lhs_2__set__(((struct __pyx_obj_3_sa_Rule *)__pyx_v_self), ((PyObject *)__pyx_v_value));
-  __Pyx_RefNannyFinishContext();
-  return __pyx_r;
-}
-
-static int __pyx_pf_3_sa_4Rule_3lhs_2__set__(struct __pyx_obj_3_sa_Rule *__pyx_v_self, PyObject *__pyx_v_value) {
-  int __pyx_r;
-  __Pyx_RefNannyDeclarations
-  int __pyx_t_1;
-  int __pyx_lineno = 0;
-  const char *__pyx_filename = NULL;
-  int __pyx_clineno = 0;
-  __Pyx_RefNannySetupContext("__set__", 0);
-  __pyx_t_1 = __Pyx_PyInt_AsInt(__pyx_v_value); if (unlikely((__pyx_t_1 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 8; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_v_self->lhs = __pyx_t_1;
-
-  __pyx_r = 0;
-  goto __pyx_L0;
-  __pyx_L1_error:;
-  __Pyx_AddTraceback("_sa.Rule.lhs.__set__", __pyx_clineno, __pyx_lineno, __pyx_filename);
-  __pyx_r = -1;
-  __pyx_L0:;
+  __pyx_generator->resume_label = -1;
+  __Pyx_Generator_clear((PyObject*)__pyx_generator);
   __Pyx_RefNannyFinishContext();
-  return __pyx_r;
+  return NULL;
 }
 
 /* Python wrapper */
@@ -25863,11 +25961,11 @@ static PyObject *__pyx_pw_3_sa_4Rule_1f_1__get__(PyObject *__pyx_v_self) {
   return __pyx_r;
 }
 
-/* "_sa.pxd":9
+/* "_sa.pxd":37
  * cdef class Rule:
- *     cdef public int lhs
+ *     cdef int lhs
  *     cdef readonly Phrase f, e             # <<<<<<<<<<<<<<
- *     cdef float *cscores
+ *     cdef FeatureVector scores
  *     cdef int n_scores
  */
 
@@ -25914,93 +26012,6 @@ static PyObject *__pyx_pf_3_sa_4Rule_1e___get__(struct __pyx_obj_3_sa_Rule *__py
   return __pyx_r;
 }
 
-/* Python wrapper */
-static PyObject *__pyx_pw_3_sa_4Rule_15word_alignments_1__get__(PyObject *__pyx_v_self); /*proto*/
-static PyObject *__pyx_pw_3_sa_4Rule_15word_alignments_1__get__(PyObject *__pyx_v_self) {
-  PyObject *__pyx_r = 0;
-  __Pyx_RefNannyDeclarations
-  __Pyx_RefNannySetupContext("__get__ (wrapper)", 0);
-  __pyx_r = __pyx_pf_3_sa_4Rule_15word_alignments___get__(((struct __pyx_obj_3_sa_Rule *)__pyx_v_self));
-  __Pyx_RefNannyFinishContext();
-  return __pyx_r;
-}
-
-/* "_sa.pxd":12
- *     cdef float *cscores
- *     cdef int n_scores
- *     cdef public word_alignments             # <<<<<<<<<<<<<<
- * 
- * cdef char* sym_tostring(int sym)
- */
-
-static PyObject *__pyx_pf_3_sa_4Rule_15word_alignments___get__(struct __pyx_obj_3_sa_Rule *__pyx_v_self) {
-  PyObject *__pyx_r = NULL;
-  __Pyx_RefNannyDeclarations
-  __Pyx_RefNannySetupContext("__get__", 0);
-  __Pyx_XDECREF(__pyx_r);
-  __Pyx_INCREF(__pyx_v_self->word_alignments);
-  __pyx_r = __pyx_v_self->word_alignments;
-  goto __pyx_L0;
-
-  __pyx_r = Py_None; __Pyx_INCREF(Py_None);
-  __pyx_L0:;
-  __Pyx_XGIVEREF(__pyx_r);
-  __Pyx_RefNannyFinishContext();
-  return __pyx_r;
-}
-
-/* Python wrapper */
-static int __pyx_pw_3_sa_4Rule_15word_alignments_3__set__(PyObject *__pyx_v_self, PyObject *__pyx_v_value); /*proto*/
-static int __pyx_pw_3_sa_4Rule_15word_alignments_3__set__(PyObject *__pyx_v_self, PyObject *__pyx_v_value) {
-  int __pyx_r;
-  __Pyx_RefNannyDeclarations
-  __Pyx_RefNannySetupContext("__set__ (wrapper)", 0);
-  __pyx_r = __pyx_pf_3_sa_4Rule_15word_alignments_2__set__(((struct __pyx_obj_3_sa_Rule *)__pyx_v_self), ((PyObject *)__pyx_v_value));
-  __Pyx_RefNannyFinishContext();
-  return __pyx_r;
-}
-
-static int __pyx_pf_3_sa_4Rule_15word_alignments_2__set__(struct __pyx_obj_3_sa_Rule *__pyx_v_self, PyObject *__pyx_v_value) {
-  int __pyx_r;
-  __Pyx_RefNannyDeclarations
-  __Pyx_RefNannySetupContext("__set__", 0);
-  __Pyx_INCREF(__pyx_v_value);
-  __Pyx_GIVEREF(__pyx_v_value);
-  __Pyx_GOTREF(__pyx_v_self->word_alignments);
-  __Pyx_DECREF(__pyx_v_self->word_alignments);
-  __pyx_v_self->word_alignments = __pyx_v_value;
-
-  __pyx_r = 0;
-  __Pyx_RefNannyFinishContext();
-  return __pyx_r;
-}
-
-/* Python wrapper */
-static int __pyx_pw_3_sa_4Rule_15word_alignments_5__del__(PyObject *__pyx_v_self); /*proto*/
-static int __pyx_pw_3_sa_4Rule_15word_alignments_5__del__(PyObject *__pyx_v_self) {
-  int __pyx_r;
-  __Pyx_RefNannyDeclarations
-  __Pyx_RefNannySetupContext("__del__ (wrapper)", 0);
-  __pyx_r = __pyx_pf_3_sa_4Rule_15word_alignments_4__del__(((struct __pyx_obj_3_sa_Rule *)__pyx_v_self));
-  __Pyx_RefNannyFinishContext();
-  return __pyx_r;
-}
-
-static int __pyx_pf_3_sa_4Rule_15word_alignments_4__del__(struct __pyx_obj_3_sa_Rule *__pyx_v_self) {
-  int __pyx_r;
-  __Pyx_RefNannyDeclarations
-  __Pyx_RefNannySetupContext("__del__", 0);
-  __Pyx_INCREF(Py_None);
-  __Pyx_GIVEREF(Py_None);
-  __Pyx_GOTREF(__pyx_v_self->word_alignments);
-  __Pyx_DECREF(__pyx_v_self->word_alignments);
-  __pyx_v_self->word_alignments = Py_None;
-
-  __pyx_r = 0;
-  __Pyx_RefNannyFinishContext();
-  return __pyx_r;
-}
-
 /* "/Users/vchahun/Sandbox/cdec/python/src/sa/precomputation.pxi":21
  *     int arr_len
  * 
@@ -26177,7 +26188,7 @@ static PyObject *__pyx_f_3_sa_free_trie_node(struct __pyx_t_3_sa__Trie_Node *__p
  *         free(node.arr)
  * 
  */
-    __pyx_t_2 = __pyx_f_3_sa_free_trie_edge(__pyx_v_node->root); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 40; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = __pyx_f_3_sa_free_trie_edge(__pyx_v_node->root); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 40; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
@@ -26240,7 +26251,7 @@ static PyObject *__pyx_f_3_sa_free_trie_edge(struct __pyx_t_3_sa__Trie_Edge *__p
  *         free_trie_edge(edge.bigger)
  *         free_trie_edge(edge.smaller)
  */
-    __pyx_t_2 = __pyx_f_3_sa_free_trie_node(__pyx_v_edge->node); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 45; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = __pyx_f_3_sa_free_trie_node(__pyx_v_edge->node); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 45; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
@@ -26251,7 +26262,7 @@ static PyObject *__pyx_f_3_sa_free_trie_edge(struct __pyx_t_3_sa__Trie_Edge *__p
  *         free_trie_edge(edge.smaller)
  * 
  */
-    __pyx_t_2 = __pyx_f_3_sa_free_trie_edge(__pyx_v_edge->bigger); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 46; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = __pyx_f_3_sa_free_trie_edge(__pyx_v_edge->bigger); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 46; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
@@ -26262,7 +26273,7 @@ static PyObject *__pyx_f_3_sa_free_trie_edge(struct __pyx_t_3_sa__Trie_Edge *__p
  * 
  * cdef _Trie_Node* trie_find(_Trie_Node* node, int val):
  */
-    __pyx_t_2 = __pyx_f_3_sa_free_trie_edge(__pyx_v_edge->smaller); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 47; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = __pyx_f_3_sa_free_trie_edge(__pyx_v_edge->smaller); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 47; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     goto __pyx_L3;
@@ -26688,7 +26699,7 @@ static PyObject *__pyx_f_3_sa_trie_node_to_map(struct __pyx_t_3_sa__Trie_Node *_
  *         free(arr.arr)
  *         arr.arr = <int*> malloc(node.arr_len * sizeof(int))
  */
-    __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 93; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 93; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     __pyx_v_arr = ((struct __pyx_obj_3_sa_IntList *)__pyx_t_3);
     __pyx_t_3 = 0;
@@ -26745,7 +26756,7 @@ static PyObject *__pyx_f_3_sa_trie_node_to_map(struct __pyx_t_3_sa__Trie_Node *_
  *     trie_edge_to_map(node.root, result, prefix, include_zeros)
  * 
  */
-    if (PyObject_SetItem(__pyx_v_result, __pyx_v_prefix, ((PyObject *)__pyx_v_arr)) < 0) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 99; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (PyObject_SetItem(__pyx_v_result, __pyx_v_prefix, ((PyObject *)__pyx_v_arr)) < 0) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 99; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     goto __pyx_L3;
   }
   __pyx_L3:;
@@ -26757,7 +26768,7 @@ static PyObject *__pyx_f_3_sa_trie_node_to_map(struct __pyx_t_3_sa__Trie_Node *_
  * 
  * cdef trie_edge_to_map(_Trie_Edge* edge, result, prefix, int include_zeros):
  */
-  __pyx_t_3 = __pyx_f_3_sa_trie_edge_to_map(__pyx_v_node->root, __pyx_v_result, __pyx_v_prefix, __pyx_v_include_zeros); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 100; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = __pyx_f_3_sa_trie_edge_to_map(__pyx_v_node->root, __pyx_v_result, __pyx_v_prefix, __pyx_v_include_zeros); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 100; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
@@ -26811,7 +26822,7 @@ static PyObject *__pyx_f_3_sa_trie_edge_to_map(struct __pyx_t_3_sa__Trie_Edge *_
  *         trie_edge_to_map(edge.bigger, result, prefix, include_zeros)
  *         prefix = prefix + (edge.val,)
  */
-    __pyx_t_2 = __pyx_f_3_sa_trie_edge_to_map(__pyx_v_edge->smaller, __pyx_v_result, __pyx_v_prefix, __pyx_v_include_zeros); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 104; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = __pyx_f_3_sa_trie_edge_to_map(__pyx_v_edge->smaller, __pyx_v_result, __pyx_v_prefix, __pyx_v_include_zeros); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 104; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
@@ -26822,7 +26833,7 @@ static PyObject *__pyx_f_3_sa_trie_edge_to_map(struct __pyx_t_3_sa__Trie_Edge *_
  *         prefix = prefix + (edge.val,)
  *         trie_node_to_map(edge.node, result, prefix, include_zeros)
  */
-    __pyx_t_2 = __pyx_f_3_sa_trie_edge_to_map(__pyx_v_edge->bigger, __pyx_v_result, __pyx_v_prefix, __pyx_v_include_zeros); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 105; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = __pyx_f_3_sa_trie_edge_to_map(__pyx_v_edge->bigger, __pyx_v_result, __pyx_v_prefix, __pyx_v_include_zeros); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 105; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
@@ -26833,14 +26844,14 @@ static PyObject *__pyx_f_3_sa_trie_edge_to_map(struct __pyx_t_3_sa__Trie_Edge *_
  *         trie_node_to_map(edge.node, result, prefix, include_zeros)
  * 
  */
-    __pyx_t_2 = PyInt_FromLong(__pyx_v_edge->val); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 106; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyInt_FromLong(__pyx_v_edge->val); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 106; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 106; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 106; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_2);
     __Pyx_GIVEREF(__pyx_t_2);
     __pyx_t_2 = 0;
-    __pyx_t_2 = PyNumber_Add(__pyx_v_prefix, ((PyObject *)__pyx_t_3)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 106; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyNumber_Add(__pyx_v_prefix, ((PyObject *)__pyx_t_3)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 106; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
     __Pyx_DECREF(__pyx_v_prefix);
@@ -26854,7 +26865,7 @@ static PyObject *__pyx_f_3_sa_trie_edge_to_map(struct __pyx_t_3_sa__Trie_Edge *_
  * 
  * cdef class TrieMap:
  */
-    __pyx_t_2 = __pyx_f_3_sa_trie_node_to_map(__pyx_v_edge->node, __pyx_v_result, __pyx_v_prefix, __pyx_v_include_zeros); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 107; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = __pyx_f_3_sa_trie_node_to_map(__pyx_v_edge->node, __pyx_v_result, __pyx_v_prefix, __pyx_v_include_zeros); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 107; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     goto __pyx_L3;
@@ -26900,18 +26911,18 @@ static int __pyx_pw_3_sa_7TrieMap_1__cinit__(PyObject *__pyx_v_self, PyObject *_
         else goto __pyx_L5_argtuple_error;
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "__cinit__") < 0)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 114; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "__cinit__") < 0)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 114; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else if (PyTuple_GET_SIZE(__pyx_args) != 1) {
       goto __pyx_L5_argtuple_error;
     } else {
       values[0] = PyTuple_GET_ITEM(__pyx_args, 0);
     }
-    __pyx_v_alphabet_size = __Pyx_PyInt_AsInt(values[0]); if (unlikely((__pyx_v_alphabet_size == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 114; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+    __pyx_v_alphabet_size = __Pyx_PyInt_AsInt(values[0]); if (unlikely((__pyx_v_alphabet_size == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 114; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("__cinit__", 1, 1, 1, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[12]; __pyx_lineno = 114; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+  __Pyx_RaiseArgtupleInvalid("__cinit__", 1, 1, 1, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[11]; __pyx_lineno = 114; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_AddTraceback("_sa.TrieMap.__cinit__", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -27022,7 +27033,7 @@ static void __pyx_pf_3_sa_7TrieMap_2__dealloc__(struct __pyx_obj_3_sa_TrieMap *_
  *         free(self.root)
  * 
  */
-      __pyx_t_3 = __pyx_f_3_sa_free_trie_node((__pyx_v_self->root[__pyx_v_i])); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 124; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = __pyx_f_3_sa_free_trie_node((__pyx_v_self->root[__pyx_v_i])); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 124; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       goto __pyx_L5;
@@ -27088,7 +27099,7 @@ static PyObject *__pyx_pf_3_sa_7TrieMap_4insert(struct __pyx_obj_3_sa_TrieMap *_
  *         p = <int*> malloc(l*sizeof(int))
  *         for i from 0 <= i < l:
  */
-  __pyx_t_1 = PyObject_Length(__pyx_v_pattern); if (unlikely(__pyx_t_1 == -1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 131; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Length(__pyx_v_pattern); if (unlikely(__pyx_t_1 == -1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 131; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_v_l = __pyx_t_1;
 
   /* "/Users/vchahun/Sandbox/cdec/python/src/sa/precomputation.pxi":132
@@ -27117,9 +27128,9 @@ static PyObject *__pyx_pf_3_sa_7TrieMap_4insert(struct __pyx_obj_3_sa_TrieMap *_
  *         self._insert(p,l)
  *         free(p)
  */
-    __pyx_t_3 = __Pyx_GetItemInt(__pyx_v_pattern, __pyx_v_i, sizeof(int), PyInt_FromLong); if (!__pyx_t_3) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 134; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = __Pyx_GetItemInt(__pyx_v_pattern, __pyx_v_i, sizeof(int), PyInt_FromLong); if (!__pyx_t_3) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 134; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_4 = __Pyx_PyInt_AsInt(__pyx_t_3); if (unlikely((__pyx_t_4 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 134; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = __Pyx_PyInt_AsInt(__pyx_t_3); if (unlikely((__pyx_t_4 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 134; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     (__pyx_v_p[__pyx_v_i]) = __pyx_t_4;
   }
@@ -27281,7 +27292,7 @@ static PyObject *__pyx_pf_3_sa_7TrieMap_6contains(struct __pyx_obj_3_sa_TrieMap
  *         p = <int*> malloc(l*sizeof(int))
  *         for i from 0 <= i < l:
  */
-  __pyx_t_1 = PyObject_Length(__pyx_v_pattern); if (unlikely(__pyx_t_1 == -1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 153; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Length(__pyx_v_pattern); if (unlikely(__pyx_t_1 == -1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 153; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_v_l = __pyx_t_1;
 
   /* "/Users/vchahun/Sandbox/cdec/python/src/sa/precomputation.pxi":154
@@ -27310,9 +27321,9 @@ static PyObject *__pyx_pf_3_sa_7TrieMap_6contains(struct __pyx_obj_3_sa_TrieMap
  *         node = self._contains(p,l)
  *         free(p)
  */
-    __pyx_t_3 = __Pyx_GetItemInt(__pyx_v_pattern, __pyx_v_i, sizeof(int), PyInt_FromLong); if (!__pyx_t_3) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 156; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = __Pyx_GetItemInt(__pyx_v_pattern, __pyx_v_i, sizeof(int), PyInt_FromLong); if (!__pyx_t_3) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 156; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_4 = __Pyx_PyInt_AsInt(__pyx_t_3); if (unlikely((__pyx_t_4 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 156; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = __Pyx_PyInt_AsInt(__pyx_t_3); if (unlikely((__pyx_t_4 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 156; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     (__pyx_v_p[__pyx_v_i]) = __pyx_t_4;
   }
@@ -27353,7 +27364,7 @@ static PyObject *__pyx_pf_3_sa_7TrieMap_6contains(struct __pyx_obj_3_sa_TrieMap
  *             return True
  */
     __Pyx_XDECREF(__pyx_r);
-    __pyx_t_3 = __Pyx_PyBool_FromLong(0); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 160; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = __Pyx_PyBool_FromLong(0); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 160; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     __pyx_r = __pyx_t_3;
     __pyx_t_3 = 0;
@@ -27370,7 +27381,7 @@ static PyObject *__pyx_pf_3_sa_7TrieMap_6contains(struct __pyx_obj_3_sa_TrieMap
  *     cdef _Trie_Node* _contains(self, int* pattern, int pattern_len):
  */
     __Pyx_XDECREF(__pyx_r);
-    __pyx_t_3 = __Pyx_PyBool_FromLong(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 162; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = __Pyx_PyBool_FromLong(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 162; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     __pyx_r = __pyx_t_3;
     __pyx_t_3 = 0;
@@ -27519,7 +27530,7 @@ static PyObject *__pyx_pf_3_sa_7TrieMap_8toMap(struct __pyx_obj_3_sa_TrieMap *__
  *             include_zeros=1
  *         else:
  */
-  __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_v_flag); if (unlikely(__pyx_t_1 < 0)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 177; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_v_flag); if (unlikely(__pyx_t_1 < 0)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 177; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   if (__pyx_t_1) {
 
     /* "/Users/vchahun/Sandbox/cdec/python/src/sa/precomputation.pxi":178
@@ -27552,7 +27563,7 @@ static PyObject *__pyx_pf_3_sa_7TrieMap_8toMap(struct __pyx_obj_3_sa_TrieMap *__
  *         for i from 0 <= i < self.V:
  *             if self.root[i] != NULL:
  */
-  __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 181; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 181; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_2));
   __pyx_v_result = __pyx_t_2;
   __pyx_t_2 = 0;
@@ -27584,14 +27595,14 @@ static PyObject *__pyx_pf_3_sa_7TrieMap_8toMap(struct __pyx_obj_3_sa_TrieMap *__
  *         return result
  * 
  */
-      __pyx_t_2 = PyInt_FromLong(__pyx_v_i); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 184; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyInt_FromLong(__pyx_v_i); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 184; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_4 = PyTuple_New(1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 184; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyTuple_New(1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 184; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       PyTuple_SET_ITEM(__pyx_t_4, 0, __pyx_t_2);
       __Pyx_GIVEREF(__pyx_t_2);
       __pyx_t_2 = 0;
-      __pyx_t_2 = __pyx_f_3_sa_trie_node_to_map((__pyx_v_self->root[__pyx_v_i]), ((PyObject *)__pyx_v_result), ((PyObject *)__pyx_t_4), __pyx_v_include_zeros); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 184; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = __pyx_f_3_sa_trie_node_to_map((__pyx_v_self->root[__pyx_v_i]), ((PyObject *)__pyx_v_result), ((PyObject *)__pyx_t_4), __pyx_v_include_zeros); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 184; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
@@ -27726,7 +27737,7 @@ static int __pyx_pw_3_sa_14Precomputation_1__cinit__(PyObject *__pyx_v_self, PyO
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "__cinit__") < 0)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 200; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "__cinit__") < 0)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 200; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else {
       switch (PyTuple_GET_SIZE(__pyx_args)) {
@@ -27755,7 +27766,7 @@ static int __pyx_pw_3_sa_14Precomputation_1__cinit__(PyObject *__pyx_v_self, PyO
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("__cinit__", 0, 0, 9, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[12]; __pyx_lineno = 200; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+  __Pyx_RaiseArgtupleInvalid("__cinit__", 0, 0, 9, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[11]; __pyx_lineno = 200; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_AddTraceback("_sa.Precomputation.__cinit__", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -27786,7 +27797,7 @@ static int __pyx_pf_3_sa_14Precomputation___cinit__(struct __pyx_obj_3_sa_Precom
  *         self.precompute_secondary_rank = precompute_secondary_rank
  *         self.max_length = max_length
  */
-  __pyx_t_1 = __Pyx_PyInt_AsInt(__pyx_v_precompute_rank); if (unlikely((__pyx_t_1 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 204; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_PyInt_AsInt(__pyx_v_precompute_rank); if (unlikely((__pyx_t_1 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 204; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_v_self->precompute_rank = __pyx_t_1;
 
   /* "/Users/vchahun/Sandbox/cdec/python/src/sa/precomputation.pxi":205
@@ -27796,7 +27807,7 @@ static int __pyx_pf_3_sa_14Precomputation___cinit__(struct __pyx_obj_3_sa_Precom
  *         self.max_length = max_length
  *         self.max_nonterminals = max_nonterminals
  */
-  __pyx_t_1 = __Pyx_PyInt_AsInt(__pyx_v_precompute_secondary_rank); if (unlikely((__pyx_t_1 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 205; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_PyInt_AsInt(__pyx_v_precompute_secondary_rank); if (unlikely((__pyx_t_1 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 205; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_v_self->precompute_secondary_rank = __pyx_t_1;
 
   /* "/Users/vchahun/Sandbox/cdec/python/src/sa/precomputation.pxi":206
@@ -27806,7 +27817,7 @@ static int __pyx_pf_3_sa_14Precomputation___cinit__(struct __pyx_obj_3_sa_Precom
  *         self.max_nonterminals = max_nonterminals
  *         self.train_max_initial_size = train_max_initial_size
  */
-  __pyx_t_1 = __Pyx_PyInt_AsInt(__pyx_v_max_length); if (unlikely((__pyx_t_1 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 206; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_PyInt_AsInt(__pyx_v_max_length); if (unlikely((__pyx_t_1 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 206; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_v_self->max_length = __pyx_t_1;
 
   /* "/Users/vchahun/Sandbox/cdec/python/src/sa/precomputation.pxi":207
@@ -27816,7 +27827,7 @@ static int __pyx_pf_3_sa_14Precomputation___cinit__(struct __pyx_obj_3_sa_Precom
  *         self.train_max_initial_size = train_max_initial_size
  *         self.train_min_gap_size = train_min_gap_size
  */
-  __pyx_t_1 = __Pyx_PyInt_AsInt(__pyx_v_max_nonterminals); if (unlikely((__pyx_t_1 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 207; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_PyInt_AsInt(__pyx_v_max_nonterminals); if (unlikely((__pyx_t_1 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 207; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_v_self->max_nonterminals = __pyx_t_1;
 
   /* "/Users/vchahun/Sandbox/cdec/python/src/sa/precomputation.pxi":208
@@ -27826,7 +27837,7 @@ static int __pyx_pf_3_sa_14Precomputation___cinit__(struct __pyx_obj_3_sa_Precom
  *         self.train_min_gap_size = train_min_gap_size
  *         if from_binary:
  */
-  __pyx_t_1 = __Pyx_PyInt_AsInt(__pyx_v_train_max_initial_size); if (unlikely((__pyx_t_1 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 208; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_PyInt_AsInt(__pyx_v_train_max_initial_size); if (unlikely((__pyx_t_1 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 208; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_v_self->train_max_initial_size = __pyx_t_1;
 
   /* "/Users/vchahun/Sandbox/cdec/python/src/sa/precomputation.pxi":209
@@ -27836,7 +27847,7 @@ static int __pyx_pf_3_sa_14Precomputation___cinit__(struct __pyx_obj_3_sa_Precom
  *         if from_binary:
  *             self.read_binary(from_binary)
  */
-  __pyx_t_1 = __Pyx_PyInt_AsInt(__pyx_v_train_min_gap_size); if (unlikely((__pyx_t_1 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 209; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_PyInt_AsInt(__pyx_v_train_min_gap_size); if (unlikely((__pyx_t_1 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 209; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_v_self->train_min_gap_size = __pyx_t_1;
 
   /* "/Users/vchahun/Sandbox/cdec/python/src/sa/precomputation.pxi":210
@@ -27846,7 +27857,7 @@ static int __pyx_pf_3_sa_14Precomputation___cinit__(struct __pyx_obj_3_sa_Precom
  *             self.read_binary(from_binary)
  *         elif from_stats:
  */
-  __pyx_t_2 = __Pyx_PyObject_IsTrue(__pyx_v_from_binary); if (unlikely(__pyx_t_2 < 0)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 210; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = __Pyx_PyObject_IsTrue(__pyx_v_from_binary); if (unlikely(__pyx_t_2 < 0)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 210; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   if (__pyx_t_2) {
 
     /* "/Users/vchahun/Sandbox/cdec/python/src/sa/precomputation.pxi":211
@@ -27856,14 +27867,14 @@ static int __pyx_pf_3_sa_14Precomputation___cinit__(struct __pyx_obj_3_sa_Precom
  *         elif from_stats:
  *             self.precompute(from_stats, fsarray)
  */
-    __pyx_t_3 = PyObject_GetAttr(((PyObject *)__pyx_v_self), __pyx_n_s__read_binary); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 211; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_GetAttr(((PyObject *)__pyx_v_self), __pyx_n_s__read_binary); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 211; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_4 = PyTuple_New(1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 211; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyTuple_New(1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 211; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_INCREF(__pyx_v_from_binary);
     PyTuple_SET_ITEM(__pyx_t_4, 0, __pyx_v_from_binary);
     __Pyx_GIVEREF(__pyx_v_from_binary);
-    __pyx_t_5 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 211; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 211; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
@@ -27878,7 +27889,7 @@ static int __pyx_pf_3_sa_14Precomputation___cinit__(struct __pyx_obj_3_sa_Precom
  *             self.precompute(from_stats, fsarray)
  * 
  */
-  __pyx_t_2 = __Pyx_PyObject_IsTrue(__pyx_v_from_stats); if (unlikely(__pyx_t_2 < 0)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 212; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = __Pyx_PyObject_IsTrue(__pyx_v_from_stats); if (unlikely(__pyx_t_2 < 0)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 212; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   if (__pyx_t_2) {
 
     /* "/Users/vchahun/Sandbox/cdec/python/src/sa/precomputation.pxi":213
@@ -27888,9 +27899,9 @@ static int __pyx_pf_3_sa_14Precomputation___cinit__(struct __pyx_obj_3_sa_Precom
  * 
  * 
  */
-    __pyx_t_5 = PyObject_GetAttr(((PyObject *)__pyx_v_self), __pyx_n_s__precompute); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 213; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyObject_GetAttr(((PyObject *)__pyx_v_self), __pyx_n_s__precompute); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 213; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
-    __pyx_t_4 = PyTuple_New(2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 213; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyTuple_New(2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 213; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_INCREF(__pyx_v_from_stats);
     PyTuple_SET_ITEM(__pyx_t_4, 0, __pyx_v_from_stats);
@@ -27898,7 +27909,7 @@ static int __pyx_pf_3_sa_14Precomputation___cinit__(struct __pyx_obj_3_sa_Precom
     __Pyx_INCREF(__pyx_v_fsarray);
     PyTuple_SET_ITEM(__pyx_t_4, 1, __pyx_v_fsarray);
     __Pyx_GIVEREF(__pyx_v_fsarray);
-    __pyx_t_3 = PyObject_Call(__pyx_t_5, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 213; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_Call(__pyx_t_5, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 213; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
     __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
@@ -27928,7 +27939,7 @@ static PyObject *__pyx_pw_3_sa_14Precomputation_3read_binary(PyObject *__pyx_v_s
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("read_binary (wrapper)", 0);
   assert(__pyx_arg_filename); {
-    __pyx_v_filename = PyBytes_AsString(__pyx_arg_filename); if (unlikely((!__pyx_v_filename) && PyErr_Occurred())) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 216; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+    __pyx_v_filename = PyBytes_AsString(__pyx_arg_filename); if (unlikely((!__pyx_v_filename) && PyErr_Occurred())) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 216; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L3_error:;
@@ -28029,7 +28040,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_2read_binary(struct __pyx_obj_3_
  *         self.precomputed_collocations = self.read_map(f)
  *         fclose(f)
  */
-  __pyx_t_1 = ((struct __pyx_vtabstruct_3_sa_Precomputation *)__pyx_v_self->__pyx_vtab)->read_map(__pyx_v_self, __pyx_v_f); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 225; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = ((struct __pyx_vtabstruct_3_sa_Precomputation *)__pyx_v_self->__pyx_vtab)->read_map(__pyx_v_self, __pyx_v_f); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 225; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_GIVEREF(__pyx_t_1);
   __Pyx_GOTREF(__pyx_v_self->precomputed_index);
@@ -28044,7 +28055,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_2read_binary(struct __pyx_obj_3_
  *         fclose(f)
  * 
  */
-  __pyx_t_1 = ((struct __pyx_vtabstruct_3_sa_Precomputation *)__pyx_v_self->__pyx_vtab)->read_map(__pyx_v_self, __pyx_v_f); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 226; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = ((struct __pyx_vtabstruct_3_sa_Precomputation *)__pyx_v_self->__pyx_vtab)->read_map(__pyx_v_self, __pyx_v_f); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 226; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_GIVEREF(__pyx_t_1);
   __Pyx_GOTREF(__pyx_v_self->precomputed_collocations);
@@ -28081,7 +28092,7 @@ static PyObject *__pyx_pw_3_sa_14Precomputation_5write_binary(PyObject *__pyx_v_
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("write_binary (wrapper)", 0);
   assert(__pyx_arg_filename); {
-    __pyx_v_filename = PyBytes_AsString(__pyx_arg_filename); if (unlikely((!__pyx_v_filename) && PyErr_Occurred())) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 230; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+    __pyx_v_filename = PyBytes_AsString(__pyx_arg_filename); if (unlikely((!__pyx_v_filename) && PyErr_Occurred())) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 230; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L3_error:;
@@ -28185,7 +28196,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_4write_binary(struct __pyx_obj_3
  */
   __pyx_t_1 = __pyx_v_self->precomputed_index;
   __Pyx_INCREF(__pyx_t_1);
-  __pyx_t_2 = ((struct __pyx_vtabstruct_3_sa_Precomputation *)__pyx_v_self->__pyx_vtab)->write_map(__pyx_v_self, __pyx_t_1, __pyx_v_f); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 239; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = ((struct __pyx_vtabstruct_3_sa_Precomputation *)__pyx_v_self->__pyx_vtab)->write_map(__pyx_v_self, __pyx_t_1, __pyx_v_f); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 239; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
@@ -28199,7 +28210,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_4write_binary(struct __pyx_obj_3
  */
   __pyx_t_2 = __pyx_v_self->precomputed_collocations;
   __Pyx_INCREF(__pyx_t_2);
-  __pyx_t_1 = ((struct __pyx_vtabstruct_3_sa_Precomputation *)__pyx_v_self->__pyx_vtab)->write_map(__pyx_v_self, __pyx_t_2, __pyx_v_f); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 240; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = ((struct __pyx_vtabstruct_3_sa_Precomputation *)__pyx_v_self->__pyx_vtab)->write_map(__pyx_v_self, __pyx_t_2, __pyx_v_f); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 240; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
@@ -28264,7 +28275,7 @@ static PyObject *__pyx_f_3_sa_14Precomputation_write_map(CYTHON_UNUSED struct __
  *         fwrite(&(N), sizeof(int), 1, f)
  *         for pattern, val in m.iteritems():
  */
-  __pyx_t_1 = PyObject_Length(__pyx_v_m); if (unlikely(__pyx_t_1 == -1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 248; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Length(__pyx_v_m); if (unlikely(__pyx_t_1 == -1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 248; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_v_N = __pyx_t_1;
 
   /* "/Users/vchahun/Sandbox/cdec/python/src/sa/precomputation.pxi":249
@@ -28286,9 +28297,9 @@ static PyObject *__pyx_f_3_sa_14Precomputation_write_map(CYTHON_UNUSED struct __
   __pyx_t_1 = 0;
   if (unlikely(__pyx_v_m == Py_None)) {
     PyErr_Format(PyExc_AttributeError, "'NoneType' object has no attribute '%s'", "iteritems");
-    {__pyx_filename = __pyx_f[12]; __pyx_lineno = 250; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    {__pyx_filename = __pyx_f[11]; __pyx_lineno = 250; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   }
-  __pyx_t_5 = __Pyx_dict_iterator(__pyx_v_m, 0, ((PyObject *)__pyx_n_s__iteritems), (&__pyx_t_3), (&__pyx_t_4)); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 250; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_5 = __Pyx_dict_iterator(__pyx_v_m, 0, ((PyObject *)__pyx_n_s__iteritems), (&__pyx_t_3), (&__pyx_t_4)); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 250; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_5);
   __Pyx_XDECREF(__pyx_t_2);
   __pyx_t_2 = __pyx_t_5;
@@ -28296,7 +28307,7 @@ static PyObject *__pyx_f_3_sa_14Precomputation_write_map(CYTHON_UNUSED struct __
   while (1) {
     __pyx_t_7 = __Pyx_dict_iter_next(__pyx_t_2, __pyx_t_3, &__pyx_t_1, &__pyx_t_5, &__pyx_t_6, NULL, __pyx_t_4);
     if (unlikely(__pyx_t_7 == 0)) break;
-    if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 250; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 250; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_XDECREF(__pyx_v_pattern);
@@ -28313,7 +28324,7 @@ static PyObject *__pyx_f_3_sa_14Precomputation_write_map(CYTHON_UNUSED struct __
  *             fwrite(&(N), sizeof(int), 1, f)
  *             for word_id in pattern:
  */
-    __pyx_t_8 = PyObject_Length(__pyx_v_pattern); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 251; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_8 = PyObject_Length(__pyx_v_pattern); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 251; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __pyx_v_N = __pyx_t_8;
 
     /* "/Users/vchahun/Sandbox/cdec/python/src/sa/precomputation.pxi":252
@@ -28336,7 +28347,7 @@ static PyObject *__pyx_f_3_sa_14Precomputation_write_map(CYTHON_UNUSED struct __
       __pyx_t_6 = __pyx_v_pattern; __Pyx_INCREF(__pyx_t_6); __pyx_t_8 = 0;
       __pyx_t_9 = NULL;
     } else {
-      __pyx_t_8 = -1; __pyx_t_6 = PyObject_GetIter(__pyx_v_pattern); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 253; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = -1; __pyx_t_6 = PyObject_GetIter(__pyx_v_pattern); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 253; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_6);
       __pyx_t_9 = Py_TYPE(__pyx_t_6)->tp_iternext;
     }
@@ -28346,21 +28357,21 @@ static PyObject *__pyx_f_3_sa_14Precomputation_write_map(CYTHON_UNUSED struct __
         #if CYTHON_COMPILING_IN_CPYTHON
         __pyx_t_5 = PyList_GET_ITEM(__pyx_t_6, __pyx_t_8); __Pyx_INCREF(__pyx_t_5); __pyx_t_8++;
         #else
-        __pyx_t_5 = PySequence_ITEM(__pyx_t_6, __pyx_t_8); __pyx_t_8++; if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 253; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+        __pyx_t_5 = PySequence_ITEM(__pyx_t_6, __pyx_t_8); __pyx_t_8++; if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 253; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
         #endif
       } else if (!__pyx_t_9 && PyTuple_CheckExact(__pyx_t_6)) {
         if (__pyx_t_8 >= PyTuple_GET_SIZE(__pyx_t_6)) break;
         #if CYTHON_COMPILING_IN_CPYTHON
         __pyx_t_5 = PyTuple_GET_ITEM(__pyx_t_6, __pyx_t_8); __Pyx_INCREF(__pyx_t_5); __pyx_t_8++;
         #else
-        __pyx_t_5 = PySequence_ITEM(__pyx_t_6, __pyx_t_8); __pyx_t_8++; if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 253; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+        __pyx_t_5 = PySequence_ITEM(__pyx_t_6, __pyx_t_8); __pyx_t_8++; if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 253; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
         #endif
       } else {
         __pyx_t_5 = __pyx_t_9(__pyx_t_6);
         if (unlikely(!__pyx_t_5)) {
           if (PyErr_Occurred()) {
             if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-            else {__pyx_filename = __pyx_f[12]; __pyx_lineno = 253; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            else {__pyx_filename = __pyx_f[11]; __pyx_lineno = 253; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           }
           break;
         }
@@ -28377,7 +28388,7 @@ static PyObject *__pyx_f_3_sa_14Precomputation_write_map(CYTHON_UNUSED struct __
  *                 fwrite(&(i), sizeof(int), 1, f)
  *             arr = val
  */
-      __pyx_t_7 = __Pyx_PyInt_AsInt(__pyx_v_word_id); if (unlikely((__pyx_t_7 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 254; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_7 = __Pyx_PyInt_AsInt(__pyx_v_word_id); if (unlikely((__pyx_t_7 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 254; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __pyx_v_i = __pyx_t_7;
 
       /* "/Users/vchahun/Sandbox/cdec/python/src/sa/precomputation.pxi":255
@@ -28398,7 +28409,7 @@ static PyObject *__pyx_f_3_sa_14Precomputation_write_map(CYTHON_UNUSED struct __
  *             arr.write_handle(f)
  * 
  */
-    if (!(likely(((__pyx_v_val) == Py_None) || likely(__Pyx_TypeTest(__pyx_v_val, __pyx_ptype_3_sa_IntList))))) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 256; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (!(likely(((__pyx_v_val) == Py_None) || likely(__Pyx_TypeTest(__pyx_v_val, __pyx_ptype_3_sa_IntList))))) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 256; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_INCREF(__pyx_v_val);
     __Pyx_XDECREF(((PyObject *)__pyx_v_arr));
     __pyx_v_arr = ((struct __pyx_obj_3_sa_IntList *)__pyx_v_val);
@@ -28467,7 +28478,7 @@ static PyObject *__pyx_f_3_sa_14Precomputation_read_map(CYTHON_UNUSED struct __p
  *         fread(&(N), sizeof(int), 1, f)
  *         for j from 0 <= j < N:
  */
-  __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 264; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 264; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_1));
   __pyx_v_m = __pyx_t_1;
   __pyx_t_1 = 0;
@@ -28537,14 +28548,14 @@ static PyObject *__pyx_f_3_sa_14Precomputation_read_map(CYTHON_UNUSED struct __p
  *             arr = IntList()
  *             arr.read_handle(f)
  */
-      __pyx_t_1 = PyInt_FromLong(__pyx_v_word_id); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 271; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyInt_FromLong(__pyx_v_word_id); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 271; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
-      __pyx_t_4 = PyTuple_New(1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 271; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyTuple_New(1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 271; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       PyTuple_SET_ITEM(__pyx_t_4, 0, __pyx_t_1);
       __Pyx_GIVEREF(__pyx_t_1);
       __pyx_t_1 = 0;
-      __pyx_t_1 = PyNumber_Add(((PyObject *)__pyx_v_key), ((PyObject *)__pyx_t_4)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 271; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyNumber_Add(((PyObject *)__pyx_v_key), ((PyObject *)__pyx_t_4)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 271; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(((PyObject *)__pyx_t_1));
       __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
       __Pyx_DECREF(((PyObject *)__pyx_v_key));
@@ -28559,7 +28570,7 @@ static PyObject *__pyx_f_3_sa_14Precomputation_read_map(CYTHON_UNUSED struct __p
  *             arr.read_handle(f)
  *             m[key] = arr
  */
-    __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 272; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 272; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_XDECREF(((PyObject *)__pyx_v_arr));
     __pyx_v_arr = ((struct __pyx_obj_3_sa_IntList *)__pyx_t_1);
@@ -28581,7 +28592,7 @@ static PyObject *__pyx_f_3_sa_14Precomputation_read_map(CYTHON_UNUSED struct __p
  *         return m
  * 
  */
-    if (PyDict_SetItem(((PyObject *)__pyx_v_m), ((PyObject *)__pyx_v_key), ((PyObject *)__pyx_v_arr)) < 0) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 274; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (PyDict_SetItem(((PyObject *)__pyx_v_m), ((PyObject *)__pyx_v_key), ((PyObject *)__pyx_v_arr)) < 0) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 274; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   }
 
   /* "/Users/vchahun/Sandbox/cdec/python/src/sa/precomputation.pxi":275
@@ -28640,11 +28651,11 @@ static PyObject *__pyx_pw_3_sa_14Precomputation_7precompute(PyObject *__pyx_v_se
         case  1:
         if (likely((values[1] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__sarray)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("precompute", 1, 2, 2, 1); {__pyx_filename = __pyx_f[12]; __pyx_lineno = 278; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("precompute", 1, 2, 2, 1); {__pyx_filename = __pyx_f[11]; __pyx_lineno = 278; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "precompute") < 0)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 278; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "precompute") < 0)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 278; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else if (PyTuple_GET_SIZE(__pyx_args) != 2) {
       goto __pyx_L5_argtuple_error;
@@ -28657,13 +28668,13 @@ static PyObject *__pyx_pw_3_sa_14Precomputation_7precompute(PyObject *__pyx_v_se
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("precompute", 1, 2, 2, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[12]; __pyx_lineno = 278; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+  __Pyx_RaiseArgtupleInvalid("precompute", 1, 2, 2, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[11]; __pyx_lineno = 278; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_AddTraceback("_sa.Precomputation.precompute", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
   return NULL;
   __pyx_L4_argument_unpacking_done:;
-  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_sarray), __pyx_ptype_3_sa_SuffixArray, 1, "sarray", 0))) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 278; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_sarray), __pyx_ptype_3_sa_SuffixArray, 1, "sarray", 0))) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 278; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_r = __pyx_pf_3_sa_14Precomputation_6precompute(((struct __pyx_obj_3_sa_Precomputation *)__pyx_v_self), __pyx_v_stats, __pyx_v_sarray);
   goto __pyx_L0;
   __pyx_L1_error:;
@@ -28787,16 +28798,16 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  */
   __pyx_t_1 = __pyx_v_darray->id2word;
   __Pyx_INCREF(__pyx_t_1);
-  __pyx_t_2 = PyObject_Length(__pyx_t_1); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 287; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyObject_Length(__pyx_t_1); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 287; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_1 = PyInt_FromSsize_t(__pyx_t_2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 287; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyInt_FromSsize_t(__pyx_t_2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 287; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 287; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 287; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_1);
   __Pyx_GIVEREF(__pyx_t_1);
   __pyx_t_1 = 0;
-  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_TrieMap)), ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 287; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_TrieMap)), ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 287; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
   __pyx_v_frequent_patterns = ((struct __pyx_obj_3_sa_TrieMap *)__pyx_t_1);
@@ -28811,16 +28822,16 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  */
   __pyx_t_1 = __pyx_v_darray->id2word;
   __Pyx_INCREF(__pyx_t_1);
-  __pyx_t_2 = PyObject_Length(__pyx_t_1); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 288; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyObject_Length(__pyx_t_1); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 288; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_1 = PyInt_FromSsize_t(__pyx_t_2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 288; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyInt_FromSsize_t(__pyx_t_2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 288; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 288; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 288; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_1);
   __Pyx_GIVEREF(__pyx_t_1);
   __pyx_t_1 = 0;
-  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_TrieMap)), ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 288; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_TrieMap)), ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 288; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
   __pyx_v_super_frequent_patterns = ((struct __pyx_obj_3_sa_TrieMap *)__pyx_t_1);
@@ -28835,16 +28846,16 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  */
   __pyx_t_1 = __pyx_v_darray->id2word;
   __Pyx_INCREF(__pyx_t_1);
-  __pyx_t_2 = PyObject_Length(__pyx_t_1); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 289; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyObject_Length(__pyx_t_1); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 289; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_1 = PyInt_FromSsize_t(__pyx_t_2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 289; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyInt_FromSsize_t(__pyx_t_2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 289; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 289; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 289; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_1);
   __Pyx_GIVEREF(__pyx_t_1);
   __pyx_t_1 = 0;
-  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_TrieMap)), ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 289; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_TrieMap)), ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 289; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
   __pyx_v_collocations = ((struct __pyx_obj_3_sa_TrieMap *)__pyx_t_1);
@@ -28857,7 +28868,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *         J_set = set()
  *         J2_set = set()
  */
-  __pyx_t_1 = PySet_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 291; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PySet_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 291; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_1));
   __pyx_v_I_set = __pyx_t_1;
   __pyx_t_1 = 0;
@@ -28869,7 +28880,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *         J2_set = set()
  *         IJ_set = set()
  */
-  __pyx_t_1 = PySet_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 292; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PySet_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 292; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_1));
   __pyx_v_J_set = __pyx_t_1;
   __pyx_t_1 = 0;
@@ -28881,7 +28892,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *         IJ_set = set()
  *         pattern_rank = {}
  */
-  __pyx_t_1 = PySet_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 293; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PySet_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 293; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_1));
   __pyx_v_J2_set = __pyx_t_1;
   __pyx_t_1 = 0;
@@ -28893,7 +28904,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *         pattern_rank = {}
  * 
  */
-  __pyx_t_1 = PySet_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 294; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PySet_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 294; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_1));
   __pyx_v_IJ_set = __pyx_t_1;
   __pyx_t_1 = 0;
@@ -28905,7 +28916,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  * 
  *         logger.info("Precomputing frequent intersections")
  */
-  __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 295; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 295; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_1));
   __pyx_v_pattern_rank = __pyx_t_1;
   __pyx_t_1 = 0;
@@ -28917,12 +28928,12 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *         cdef float start_time = monitor_cpu()
  * 
  */
-  __pyx_t_1 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 297; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 297; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_3 = PyObject_GetAttr(__pyx_t_1, __pyx_n_s__info); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 297; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_GetAttr(__pyx_t_1, __pyx_n_s__info); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 297; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_1 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_k_tuple_73), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 297; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_k_tuple_73), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 297; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
@@ -28958,7 +28969,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
     __pyx_t_3 = __pyx_v_stats; __Pyx_INCREF(__pyx_t_3); __pyx_t_2 = 0;
     __pyx_t_4 = NULL;
   } else {
-    __pyx_t_2 = -1; __pyx_t_3 = PyObject_GetIter(__pyx_v_stats); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 301; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = -1; __pyx_t_3 = PyObject_GetIter(__pyx_v_stats); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 301; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     __pyx_t_4 = Py_TYPE(__pyx_t_3)->tp_iternext;
   }
@@ -28968,21 +28979,21 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
       #if CYTHON_COMPILING_IN_CPYTHON
       __pyx_t_5 = PyList_GET_ITEM(__pyx_t_3, __pyx_t_2); __Pyx_INCREF(__pyx_t_5); __pyx_t_2++;
       #else
-      __pyx_t_5 = PySequence_ITEM(__pyx_t_3, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 301; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+      __pyx_t_5 = PySequence_ITEM(__pyx_t_3, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 301; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
       #endif
     } else if (!__pyx_t_4 && PyTuple_CheckExact(__pyx_t_3)) {
       if (__pyx_t_2 >= PyTuple_GET_SIZE(__pyx_t_3)) break;
       #if CYTHON_COMPILING_IN_CPYTHON
       __pyx_t_5 = PyTuple_GET_ITEM(__pyx_t_3, __pyx_t_2); __Pyx_INCREF(__pyx_t_5); __pyx_t_2++;
       #else
-      __pyx_t_5 = PySequence_ITEM(__pyx_t_3, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 301; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+      __pyx_t_5 = PySequence_ITEM(__pyx_t_3, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 301; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
       #endif
     } else {
       __pyx_t_5 = __pyx_t_4(__pyx_t_3);
       if (unlikely(!__pyx_t_5)) {
         if (PyErr_Occurred()) {
           if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-          else {__pyx_filename = __pyx_f[12]; __pyx_lineno = 301; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          else {__pyx_filename = __pyx_f[11]; __pyx_lineno = 301; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         }
         break;
       }
@@ -28998,7 +29009,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
       if (unlikely(size != 3)) {
         if (size > 3) __Pyx_RaiseTooManyValuesError(3);
         else if (size >= 0) __Pyx_RaiseNeedMoreValuesError(size);
-        {__pyx_filename = __pyx_f[12]; __pyx_lineno = 301; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        {__pyx_filename = __pyx_f[11]; __pyx_lineno = 301; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       }
       #if CYTHON_COMPILING_IN_CPYTHON
       if (likely(PyTuple_CheckExact(sequence))) {
@@ -29014,15 +29025,15 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
       __Pyx_INCREF(__pyx_t_7);
       __Pyx_INCREF(__pyx_t_8);
       #else
-      __pyx_t_6 = PySequence_ITEM(sequence, 0); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 301; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __pyx_t_7 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 301; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __pyx_t_8 = PySequence_ITEM(sequence, 2); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 301; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = PySequence_ITEM(sequence, 0); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 301; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_7 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 301; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = PySequence_ITEM(sequence, 2); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 301; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #endif
       __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
     } else
     {
       Py_ssize_t index = -1;
-      __pyx_t_9 = PyObject_GetIter(__pyx_t_5); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 301; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_9 = PyObject_GetIter(__pyx_t_5); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 301; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_9);
       __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
       __pyx_t_10 = Py_TYPE(__pyx_t_9)->tp_iternext;
@@ -29032,7 +29043,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
       __Pyx_GOTREF(__pyx_t_7);
       index = 2; __pyx_t_8 = __pyx_t_10(__pyx_t_9); if (unlikely(!__pyx_t_8)) goto __pyx_L5_unpacking_failed;
       __Pyx_GOTREF(__pyx_t_8);
-      if (__Pyx_IternextUnpackEndCheck(__pyx_t_10(__pyx_t_9), 3) < 0) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 301; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      if (__Pyx_IternextUnpackEndCheck(__pyx_t_10(__pyx_t_9), 3) < 0) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 301; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __pyx_t_10 = NULL;
       __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
       goto __pyx_L6_unpacking_done;
@@ -29040,7 +29051,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
       __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
       __pyx_t_10 = NULL;
       if (__Pyx_IterFinish() == 0) __Pyx_RaiseNeedMoreValuesError(index);
-      {__pyx_filename = __pyx_f[12]; __pyx_lineno = 301; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      {__pyx_filename = __pyx_f[11]; __pyx_lineno = 301; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __pyx_L6_unpacking_done:;
     }
     __Pyx_XDECREF(__pyx_v__);
@@ -29055,7 +29066,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
     __Pyx_INCREF(__pyx_t_1);
     __Pyx_XDECREF(__pyx_v_rank);
     __pyx_v_rank = __pyx_t_1;
-    __pyx_t_5 = PyNumber_Add(__pyx_t_1, __pyx_int_1); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 301; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyNumber_Add(__pyx_t_1, __pyx_int_1); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 301; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
     __Pyx_DECREF(__pyx_t_1);
     __pyx_t_1 = __pyx_t_5;
@@ -29068,12 +29079,12 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *                 break
  *             max_pattern_len = max(max_pattern_len, len(phrase))
  */
-    __pyx_t_5 = PyInt_FromLong(__pyx_v_self->precompute_rank); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 302; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyInt_FromLong(__pyx_v_self->precompute_rank); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 302; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
-    __pyx_t_8 = PyObject_RichCompare(__pyx_v_rank, __pyx_t_5, Py_GE); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 302; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_8 = PyObject_RichCompare(__pyx_v_rank, __pyx_t_5, Py_GE); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 302; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_8);
     __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-    __pyx_t_11 = __Pyx_PyObject_IsTrue(__pyx_t_8); if (unlikely(__pyx_t_11 < 0)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 302; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_11 = __Pyx_PyObject_IsTrue(__pyx_t_8); if (unlikely(__pyx_t_11 < 0)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 302; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
     if (__pyx_t_11) {
 
@@ -29096,7 +29107,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *             frequent_patterns.insert(phrase)
  *             I_set.add(phrase)
  */
-    __pyx_t_12 = PyObject_Length(__pyx_v_phrase); if (unlikely(__pyx_t_12 == -1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 304; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_12 = PyObject_Length(__pyx_v_phrase); if (unlikely(__pyx_t_12 == -1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 304; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __pyx_t_13 = __pyx_v_max_pattern_len;
     if ((__pyx_t_12 > __pyx_t_13)) {
       __pyx_t_14 = __pyx_t_12;
@@ -29112,14 +29123,14 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *             I_set.add(phrase)
  *             pattern_rank[phrase] = rank
  */
-    __pyx_t_8 = PyObject_GetAttr(((PyObject *)__pyx_v_frequent_patterns), __pyx_n_s__insert); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 305; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_8 = PyObject_GetAttr(((PyObject *)__pyx_v_frequent_patterns), __pyx_n_s__insert); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 305; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_8);
-    __pyx_t_5 = PyTuple_New(1); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 305; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyTuple_New(1); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 305; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
     __Pyx_INCREF(__pyx_v_phrase);
     PyTuple_SET_ITEM(__pyx_t_5, 0, __pyx_v_phrase);
     __Pyx_GIVEREF(__pyx_v_phrase);
-    __pyx_t_7 = PyObject_Call(__pyx_t_8, ((PyObject *)__pyx_t_5), NULL); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 305; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_7 = PyObject_Call(__pyx_t_8, ((PyObject *)__pyx_t_5), NULL); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 305; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_7);
     __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
     __Pyx_DECREF(((PyObject *)__pyx_t_5)); __pyx_t_5 = 0;
@@ -29132,7 +29143,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *             pattern_rank[phrase] = rank
  *             if rank < self.precompute_secondary_rank:
  */
-    __pyx_t_15 = PySet_Add(__pyx_v_I_set, __pyx_v_phrase); if (unlikely(__pyx_t_15 == -1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 306; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_15 = PySet_Add(__pyx_v_I_set, __pyx_v_phrase); if (unlikely(__pyx_t_15 == -1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 306; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
     /* "/Users/vchahun/Sandbox/cdec/python/src/sa/precomputation.pxi":307
  *             frequent_patterns.insert(phrase)
@@ -29141,7 +29152,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *             if rank < self.precompute_secondary_rank:
  *                 super_frequent_patterns.insert(phrase)
  */
-    if (PyDict_SetItem(((PyObject *)__pyx_v_pattern_rank), __pyx_v_phrase, __pyx_v_rank) < 0) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 307; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (PyDict_SetItem(((PyObject *)__pyx_v_pattern_rank), __pyx_v_phrase, __pyx_v_rank) < 0) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 307; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
     /* "/Users/vchahun/Sandbox/cdec/python/src/sa/precomputation.pxi":308
  *             I_set.add(phrase)
@@ -29150,12 +29161,12 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *                 super_frequent_patterns.insert(phrase)
  *                 J_set.add(phrase)
  */
-    __pyx_t_7 = PyInt_FromLong(__pyx_v_self->precompute_secondary_rank); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 308; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_7 = PyInt_FromLong(__pyx_v_self->precompute_secondary_rank); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 308; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_7);
-    __pyx_t_5 = PyObject_RichCompare(__pyx_v_rank, __pyx_t_7, Py_LT); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 308; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyObject_RichCompare(__pyx_v_rank, __pyx_t_7, Py_LT); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 308; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-    __pyx_t_11 = __Pyx_PyObject_IsTrue(__pyx_t_5); if (unlikely(__pyx_t_11 < 0)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 308; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_11 = __Pyx_PyObject_IsTrue(__pyx_t_5); if (unlikely(__pyx_t_11 < 0)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 308; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
     if (__pyx_t_11) {
 
@@ -29166,14 +29177,14 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *                 J_set.add(phrase)
  * 
  */
-      __pyx_t_5 = PyObject_GetAttr(((PyObject *)__pyx_v_super_frequent_patterns), __pyx_n_s__insert); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 309; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_5 = PyObject_GetAttr(((PyObject *)__pyx_v_super_frequent_patterns), __pyx_n_s__insert); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 309; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_5);
-      __pyx_t_7 = PyTuple_New(1); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 309; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_7 = PyTuple_New(1); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 309; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_7);
       __Pyx_INCREF(__pyx_v_phrase);
       PyTuple_SET_ITEM(__pyx_t_7, 0, __pyx_v_phrase);
       __Pyx_GIVEREF(__pyx_v_phrase);
-      __pyx_t_8 = PyObject_Call(__pyx_t_5, ((PyObject *)__pyx_t_7), NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 309; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = PyObject_Call(__pyx_t_5, ((PyObject *)__pyx_t_7), NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 309; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_8);
       __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
       __Pyx_DECREF(((PyObject *)__pyx_t_7)); __pyx_t_7 = 0;
@@ -29186,7 +29197,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  * 
  *         queue = IntList(increment=1000)
  */
-      __pyx_t_15 = PySet_Add(__pyx_v_J_set, __pyx_v_phrase); if (unlikely(__pyx_t_15 == -1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 310; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_15 = PySet_Add(__pyx_v_J_set, __pyx_v_phrase); if (unlikely(__pyx_t_15 == -1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 310; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       goto __pyx_L8;
     }
     __pyx_L8:;
@@ -29202,10 +29213,10 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  * 
  *         logger.info("    Computing inverted indexes...")
  */
-  __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 312; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 312; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_1));
-  if (PyDict_SetItem(__pyx_t_1, ((PyObject *)__pyx_n_s__increment), __pyx_int_1000) < 0) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 312; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_1)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 312; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_1, ((PyObject *)__pyx_n_s__increment), __pyx_int_1000) < 0) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 312; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_1)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 312; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
   __pyx_v_queue = ((struct __pyx_obj_3_sa_IntList *)__pyx_t_3);
@@ -29218,12 +29229,12 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *         N = len(data)
  *         for i from 0 <= i < N:
  */
-  __pyx_t_3 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 314; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 314; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
-  __pyx_t_1 = PyObject_GetAttr(__pyx_t_3, __pyx_n_s__info); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 314; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_GetAttr(__pyx_t_3, __pyx_n_s__info); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 314; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  __pyx_t_3 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_k_tuple_75), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 314; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_k_tuple_75), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 314; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
@@ -29235,7 +29246,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *         for i from 0 <= i < N:
  *             sa_word_id = data.arr[i]
  */
-  __pyx_t_2 = PyObject_Length(((PyObject *)__pyx_v_data)); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 315; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyObject_Length(((PyObject *)__pyx_v_data)); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 315; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_v_N = __pyx_t_2;
 
   /* "/Users/vchahun/Sandbox/cdec/python/src/sa/precomputation.pxi":316
@@ -29345,7 +29356,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  * 
  *         logger.info("    Computing collocations...")
  */
-        __pyx_t_3 = __pyx_f_3_sa_trie_node_data_append(__pyx_v_node, __pyx_v_i); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 327; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_3 = __pyx_f_3_sa_trie_node_data_append(__pyx_v_node, __pyx_v_i); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 327; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_3);
         __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       }
@@ -29361,12 +29372,12 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *         N = len(queue)
  *         ptr1 = 0
  */
-  __pyx_t_3 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 329; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 329; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
-  __pyx_t_1 = PyObject_GetAttr(__pyx_t_3, __pyx_n_s__info); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 329; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_GetAttr(__pyx_t_3, __pyx_n_s__info); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 329; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  __pyx_t_3 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_k_tuple_77), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 329; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_k_tuple_77), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 329; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
@@ -29378,7 +29389,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *         ptr1 = 0
  *         sent_count = 0
  */
-  __pyx_t_2 = PyObject_Length(((PyObject *)__pyx_v_queue)); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 330; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyObject_Length(((PyObject *)__pyx_v_queue)); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 330; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_v_N = __pyx_t_2;
 
   /* "/Users/vchahun/Sandbox/cdec/python/src/sa/precomputation.pxi":331
@@ -29587,7 +29598,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *                         trie_node_data_append(node, i2)
  *                         if super_frequent_patterns._contains(data.arr+i2, l2) != NULL:
  */
-          __pyx_t_3 = __pyx_f_3_sa_trie_node_data_append(__pyx_v_node, __pyx_v_i1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 350; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_3 = __pyx_f_3_sa_trie_node_data_append(__pyx_v_node, __pyx_v_i1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 350; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_3);
           __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
@@ -29598,7 +29609,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *                         if super_frequent_patterns._contains(data.arr+i2, l2) != NULL:
  *                             if super_frequent_patterns._contains(data.arr+i1, l1) != NULL:
  */
-          __pyx_t_3 = __pyx_f_3_sa_trie_node_data_append(__pyx_v_node, __pyx_v_i2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 351; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_3 = __pyx_f_3_sa_trie_node_data_append(__pyx_v_node, __pyx_v_i2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 351; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_3);
           __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
@@ -29838,7 +29849,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *                                         trie_node_data_append(node, i2)
  *                                         trie_node_data_append(node, i3)
  */
-                  __pyx_t_3 = __pyx_f_3_sa_trie_node_data_append(__pyx_v_node, __pyx_v_i1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 374; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  __pyx_t_3 = __pyx_f_3_sa_trie_node_data_append(__pyx_v_node, __pyx_v_i1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 374; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   __Pyx_GOTREF(__pyx_t_3);
                   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
@@ -29849,7 +29860,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *                                         trie_node_data_append(node, i3)
  *                                 ptr3 = ptr3 + 2
  */
-                  __pyx_t_3 = __pyx_f_3_sa_trie_node_data_append(__pyx_v_node, __pyx_v_i2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 375; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  __pyx_t_3 = __pyx_f_3_sa_trie_node_data_append(__pyx_v_node, __pyx_v_i2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 375; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   __Pyx_GOTREF(__pyx_t_3);
                   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
@@ -29860,7 +29871,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *                                 ptr3 = ptr3 + 2
  *                     ptr2 = ptr2 + 2
  */
-                  __pyx_t_3 = __pyx_f_3_sa_trie_node_data_append(__pyx_v_node, __pyx_v_i3); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 376; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  __pyx_t_3 = __pyx_f_3_sa_trie_node_data_append(__pyx_v_node, __pyx_v_i3); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 376; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   __Pyx_GOTREF(__pyx_t_3);
                   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
                   goto __pyx_L30;
@@ -29936,14 +29947,14 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *                 ptr1 = ptr1 + 1
  * 
  */
-        __pyx_t_3 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 383; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_3 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 383; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_3);
-        __pyx_t_1 = PyObject_GetAttr(__pyx_t_3, __pyx_n_s__debug); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 383; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_1 = PyObject_GetAttr(__pyx_t_3, __pyx_n_s__debug); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 383; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_1);
         __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-        __pyx_t_3 = PyInt_FromLong(__pyx_v_sent_count); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 383; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_3 = PyInt_FromLong(__pyx_v_sent_count); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 383; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_3);
-        __pyx_t_8 = PyTuple_New(2); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 383; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_8 = PyTuple_New(2); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 383; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_8);
         __Pyx_INCREF(((PyObject *)__pyx_kp_s_78));
         PyTuple_SET_ITEM(__pyx_t_8, 0, ((PyObject *)__pyx_kp_s_78));
@@ -29951,7 +29962,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
         PyTuple_SET_ITEM(__pyx_t_8, 1, __pyx_t_3);
         __Pyx_GIVEREF(__pyx_t_3);
         __pyx_t_3 = 0;
-        __pyx_t_3 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_8), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 383; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_3 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_8), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 383; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_3);
         __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
         __Pyx_DECREF(((PyObject *)__pyx_t_8)); __pyx_t_8 = 0;
@@ -29979,16 +29990,16 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *         self.precomputed_index = frequent_patterns.toMap(True)
  * 
  */
-  __pyx_t_3 = PyObject_GetAttr(((PyObject *)__pyx_v_collocations), __pyx_n_s__toMap); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 386; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_GetAttr(((PyObject *)__pyx_v_collocations), __pyx_n_s__toMap); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 386; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
-  __pyx_t_8 = __Pyx_PyBool_FromLong(0); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 386; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_8 = __Pyx_PyBool_FromLong(0); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 386; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_8);
-  __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 386; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 386; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_t_8);
   __Pyx_GIVEREF(__pyx_t_8);
   __pyx_t_8 = 0;
-  __pyx_t_8 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 386; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_8 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 386; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_8);
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
@@ -30005,16 +30016,16 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  * 
  *         x = 0
  */
-  __pyx_t_8 = PyObject_GetAttr(((PyObject *)__pyx_v_frequent_patterns), __pyx_n_s__toMap); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 387; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_8 = PyObject_GetAttr(((PyObject *)__pyx_v_frequent_patterns), __pyx_n_s__toMap); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 387; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_8);
-  __pyx_t_1 = __Pyx_PyBool_FromLong(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 387; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_PyBool_FromLong(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 387; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 387; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 387; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_1);
   __Pyx_GIVEREF(__pyx_t_1);
   __pyx_t_1 = 0;
-  __pyx_t_1 = PyObject_Call(__pyx_t_8, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 387; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Call(__pyx_t_8, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 387; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
   __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
@@ -30041,7 +30052,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *             for pattern2 in J_set:
  *                 if len(pattern1) + len(pattern2) + 1 < self.max_length:
  */
-  __pyx_t_1 = PyObject_GetIter(((PyObject *)__pyx_v_J_set)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 390; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_GetIter(((PyObject *)__pyx_v_J_set)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 390; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_t_4 = Py_TYPE(__pyx_t_1)->tp_iternext;
   for (;;) {
@@ -30050,7 +30061,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
       if (unlikely(!__pyx_t_3)) {
         if (PyErr_Occurred()) {
           if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-          else {__pyx_filename = __pyx_f[12]; __pyx_lineno = 390; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          else {__pyx_filename = __pyx_f[11]; __pyx_lineno = 390; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         }
         break;
       }
@@ -30067,7 +30078,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *                 if len(pattern1) + len(pattern2) + 1 < self.max_length:
  *                     combined_pattern = pattern1 + (-1,) + pattern2
  */
-    __pyx_t_3 = PyObject_GetIter(((PyObject *)__pyx_v_J_set)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 391; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_GetIter(((PyObject *)__pyx_v_J_set)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 391; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     __pyx_t_20 = Py_TYPE(__pyx_t_3)->tp_iternext;
     for (;;) {
@@ -30076,7 +30087,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
         if (unlikely(!__pyx_t_8)) {
           if (PyErr_Occurred()) {
             if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-            else {__pyx_filename = __pyx_f[12]; __pyx_lineno = 391; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            else {__pyx_filename = __pyx_f[11]; __pyx_lineno = 391; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           }
           break;
         }
@@ -30093,8 +30104,8 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *                     combined_pattern = pattern1 + (-1,) + pattern2
  *                     J2_set.add(combined_pattern)
  */
-      __pyx_t_2 = PyObject_Length(__pyx_v_pattern1); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 392; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __pyx_t_14 = PyObject_Length(__pyx_v_pattern2); if (unlikely(__pyx_t_14 == -1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 392; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyObject_Length(__pyx_v_pattern1); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 392; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_14 = PyObject_Length(__pyx_v_pattern2); if (unlikely(__pyx_t_14 == -1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 392; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __pyx_t_19 = (((__pyx_t_2 + __pyx_t_14) + 1) < __pyx_v_self->max_length);
       if (__pyx_t_19) {
 
@@ -30105,9 +30116,9 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *                     J2_set.add(combined_pattern)
  * 
  */
-        __pyx_t_8 = PyNumber_Add(__pyx_v_pattern1, ((PyObject *)__pyx_k_tuple_79)); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 393; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_8 = PyNumber_Add(__pyx_v_pattern1, ((PyObject *)__pyx_k_tuple_79)); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 393; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_8);
-        __pyx_t_7 = PyNumber_Add(__pyx_t_8, __pyx_v_pattern2); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 393; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_7 = PyNumber_Add(__pyx_t_8, __pyx_v_pattern2); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 393; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_7);
         __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
         __Pyx_XDECREF(__pyx_v_combined_pattern);
@@ -30121,7 +30132,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  * 
  *         for pattern1 in I_set:
  */
-        __pyx_t_15 = PySet_Add(__pyx_v_J2_set, __pyx_v_combined_pattern); if (unlikely(__pyx_t_15 == -1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 394; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_15 = PySet_Add(__pyx_v_J2_set, __pyx_v_combined_pattern); if (unlikely(__pyx_t_15 == -1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 394; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         goto __pyx_L40;
       }
       __pyx_L40:;
@@ -30137,7 +30148,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *             for pattern2 in I_set:
  *                 x = x+1
  */
-  __pyx_t_1 = PyObject_GetIter(((PyObject *)__pyx_v_I_set)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 396; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_GetIter(((PyObject *)__pyx_v_I_set)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 396; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_t_4 = Py_TYPE(__pyx_t_1)->tp_iternext;
   for (;;) {
@@ -30146,7 +30157,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
       if (unlikely(!__pyx_t_3)) {
         if (PyErr_Occurred()) {
           if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-          else {__pyx_filename = __pyx_f[12]; __pyx_lineno = 396; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          else {__pyx_filename = __pyx_f[11]; __pyx_lineno = 396; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         }
         break;
       }
@@ -30163,7 +30174,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *                 x = x+1
  *                 if len(pattern1) + len(pattern2) + 1 <= self.max_length:
  */
-    __pyx_t_3 = PyObject_GetIter(((PyObject *)__pyx_v_I_set)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 397; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_GetIter(((PyObject *)__pyx_v_I_set)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 397; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     __pyx_t_20 = Py_TYPE(__pyx_t_3)->tp_iternext;
     for (;;) {
@@ -30172,7 +30183,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
         if (unlikely(!__pyx_t_7)) {
           if (PyErr_Occurred()) {
             if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-            else {__pyx_filename = __pyx_f[12]; __pyx_lineno = 397; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            else {__pyx_filename = __pyx_f[11]; __pyx_lineno = 397; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           }
           break;
         }
@@ -30189,7 +30200,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *                 if len(pattern1) + len(pattern2) + 1 <= self.max_length:
  *                     combined_pattern = pattern1 + (-1,) + pattern2
  */
-      __pyx_t_7 = PyNumber_Add(__pyx_v_x, __pyx_int_1); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 398; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_7 = PyNumber_Add(__pyx_v_x, __pyx_int_1); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 398; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_7);
       __Pyx_DECREF(__pyx_v_x);
       __pyx_v_x = __pyx_t_7;
@@ -30202,8 +30213,8 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *                     combined_pattern = pattern1 + (-1,) + pattern2
  *                     IJ_set.add(combined_pattern)
  */
-      __pyx_t_14 = PyObject_Length(__pyx_v_pattern1); if (unlikely(__pyx_t_14 == -1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 399; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __pyx_t_2 = PyObject_Length(__pyx_v_pattern2); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 399; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_14 = PyObject_Length(__pyx_v_pattern1); if (unlikely(__pyx_t_14 == -1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 399; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyObject_Length(__pyx_v_pattern2); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 399; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __pyx_t_19 = (((__pyx_t_14 + __pyx_t_2) + 1) <= __pyx_v_self->max_length);
       if (__pyx_t_19) {
 
@@ -30214,9 +30225,9 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *                     IJ_set.add(combined_pattern)
  * 
  */
-        __pyx_t_7 = PyNumber_Add(__pyx_v_pattern1, ((PyObject *)__pyx_k_tuple_80)); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 400; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_7 = PyNumber_Add(__pyx_v_pattern1, ((PyObject *)__pyx_k_tuple_80)); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 400; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_7);
-        __pyx_t_8 = PyNumber_Add(__pyx_t_7, __pyx_v_pattern2); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 400; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_8 = PyNumber_Add(__pyx_t_7, __pyx_v_pattern2); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 400; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_8);
         __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
         __Pyx_XDECREF(__pyx_v_combined_pattern);
@@ -30230,7 +30241,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  * 
  *         for pattern1 in I_set:
  */
-        __pyx_t_15 = PySet_Add(__pyx_v_IJ_set, __pyx_v_combined_pattern); if (unlikely(__pyx_t_15 == -1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 401; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_15 = PySet_Add(__pyx_v_IJ_set, __pyx_v_combined_pattern); if (unlikely(__pyx_t_15 == -1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 401; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         goto __pyx_L45;
       }
       __pyx_L45:;
@@ -30246,7 +30257,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *             for pattern2 in J2_set:
  *                 x = x+2
  */
-  __pyx_t_1 = PyObject_GetIter(((PyObject *)__pyx_v_I_set)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 403; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_GetIter(((PyObject *)__pyx_v_I_set)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 403; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_t_4 = Py_TYPE(__pyx_t_1)->tp_iternext;
   for (;;) {
@@ -30255,7 +30266,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
       if (unlikely(!__pyx_t_3)) {
         if (PyErr_Occurred()) {
           if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-          else {__pyx_filename = __pyx_f[12]; __pyx_lineno = 403; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          else {__pyx_filename = __pyx_f[11]; __pyx_lineno = 403; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         }
         break;
       }
@@ -30272,7 +30283,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *                 x = x+2
  *                 if len(pattern1) + len(pattern2) + 1<= self.max_length:
  */
-    __pyx_t_3 = PyObject_GetIter(((PyObject *)__pyx_v_J2_set)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 404; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_GetIter(((PyObject *)__pyx_v_J2_set)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 404; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     __pyx_t_20 = Py_TYPE(__pyx_t_3)->tp_iternext;
     for (;;) {
@@ -30281,7 +30292,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
         if (unlikely(!__pyx_t_8)) {
           if (PyErr_Occurred()) {
             if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-            else {__pyx_filename = __pyx_f[12]; __pyx_lineno = 404; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            else {__pyx_filename = __pyx_f[11]; __pyx_lineno = 404; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           }
           break;
         }
@@ -30298,7 +30309,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *                 if len(pattern1) + len(pattern2) + 1<= self.max_length:
  *                     combined_pattern = pattern1 + (-1,) + pattern2
  */
-      __pyx_t_8 = PyNumber_Add(__pyx_v_x, __pyx_int_2); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 405; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = PyNumber_Add(__pyx_v_x, __pyx_int_2); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 405; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_8);
       __Pyx_DECREF(__pyx_v_x);
       __pyx_v_x = __pyx_t_8;
@@ -30311,8 +30322,8 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *                     combined_pattern = pattern1 + (-1,) + pattern2
  *                     IJ_set.add(combined_pattern)
  */
-      __pyx_t_2 = PyObject_Length(__pyx_v_pattern1); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 406; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __pyx_t_14 = PyObject_Length(__pyx_v_pattern2); if (unlikely(__pyx_t_14 == -1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 406; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyObject_Length(__pyx_v_pattern1); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 406; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_14 = PyObject_Length(__pyx_v_pattern2); if (unlikely(__pyx_t_14 == -1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 406; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __pyx_t_19 = (((__pyx_t_2 + __pyx_t_14) + 1) <= __pyx_v_self->max_length);
       if (__pyx_t_19) {
 
@@ -30323,9 +30334,9 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *                     IJ_set.add(combined_pattern)
  *                     combined_pattern = pattern2 + (-1,) + pattern1
  */
-        __pyx_t_8 = PyNumber_Add(__pyx_v_pattern1, ((PyObject *)__pyx_k_tuple_81)); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 407; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_8 = PyNumber_Add(__pyx_v_pattern1, ((PyObject *)__pyx_k_tuple_81)); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 407; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_8);
-        __pyx_t_7 = PyNumber_Add(__pyx_t_8, __pyx_v_pattern2); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 407; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_7 = PyNumber_Add(__pyx_t_8, __pyx_v_pattern2); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 407; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_7);
         __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
         __Pyx_XDECREF(__pyx_v_combined_pattern);
@@ -30339,7 +30350,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *                     combined_pattern = pattern2 + (-1,) + pattern1
  *                     IJ_set.add(combined_pattern)
  */
-        __pyx_t_15 = PySet_Add(__pyx_v_IJ_set, __pyx_v_combined_pattern); if (unlikely(__pyx_t_15 == -1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 408; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_15 = PySet_Add(__pyx_v_IJ_set, __pyx_v_combined_pattern); if (unlikely(__pyx_t_15 == -1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 408; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
         /* "/Users/vchahun/Sandbox/cdec/python/src/sa/precomputation.pxi":409
  *                     combined_pattern = pattern1 + (-1,) + pattern2
@@ -30348,9 +30359,9 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *                     IJ_set.add(combined_pattern)
  * 
  */
-        __pyx_t_7 = PyNumber_Add(__pyx_v_pattern2, ((PyObject *)__pyx_k_tuple_82)); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 409; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_7 = PyNumber_Add(__pyx_v_pattern2, ((PyObject *)__pyx_k_tuple_82)); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 409; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_7);
-        __pyx_t_8 = PyNumber_Add(__pyx_t_7, __pyx_v_pattern1); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 409; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_8 = PyNumber_Add(__pyx_t_7, __pyx_v_pattern1); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 409; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_8);
         __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
         __Pyx_DECREF(__pyx_v_combined_pattern);
@@ -30364,7 +30375,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  * 
  *         N = len(pattern_rank)
  */
-        __pyx_t_15 = PySet_Add(__pyx_v_IJ_set, __pyx_v_combined_pattern); if (unlikely(__pyx_t_15 == -1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 410; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_15 = PySet_Add(__pyx_v_IJ_set, __pyx_v_combined_pattern); if (unlikely(__pyx_t_15 == -1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 410; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         goto __pyx_L50;
       }
       __pyx_L50:;
@@ -30380,7 +30391,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *         cost_by_rank = IntList(initial_len=N)
  *         count_by_rank = IntList(initial_len=N)
  */
-  __pyx_t_14 = PyDict_Size(((PyObject *)__pyx_v_pattern_rank)); if (unlikely(__pyx_t_14 == -1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 412; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_14 = PyDict_Size(((PyObject *)__pyx_v_pattern_rank)); if (unlikely(__pyx_t_14 == -1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 412; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_v_N = __pyx_t_14;
 
   /* "/Users/vchahun/Sandbox/cdec/python/src/sa/precomputation.pxi":413
@@ -30390,13 +30401,13 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *         count_by_rank = IntList(initial_len=N)
  *         for pattern, arr in self.precomputed_collocations.iteritems():
  */
-  __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 413; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 413; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_1));
-  __pyx_t_3 = PyInt_FromLong(__pyx_v_N); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 413; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyInt_FromLong(__pyx_v_N); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 413; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
-  if (PyDict_SetItem(__pyx_t_1, ((PyObject *)__pyx_n_s__initial_len), __pyx_t_3) < 0) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 413; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_1, ((PyObject *)__pyx_n_s__initial_len), __pyx_t_3) < 0) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 413; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_1)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 413; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_1)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 413; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
   __pyx_v_cost_by_rank = ((struct __pyx_obj_3_sa_IntList *)__pyx_t_3);
@@ -30409,13 +30420,13 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *         for pattern, arr in self.precomputed_collocations.iteritems():
  *             if pattern not in IJ_set:
  */
-  __pyx_t_3 = PyDict_New(); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 414; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyDict_New(); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 414; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_3));
-  __pyx_t_1 = PyInt_FromLong(__pyx_v_N); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 414; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyInt_FromLong(__pyx_v_N); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 414; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  if (PyDict_SetItem(__pyx_t_3, ((PyObject *)__pyx_n_s__initial_len), __pyx_t_1) < 0) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 414; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_3, ((PyObject *)__pyx_n_s__initial_len), __pyx_t_1) < 0) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 414; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_3)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 414; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_3)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 414; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
   __pyx_v_count_by_rank = ((struct __pyx_obj_3_sa_IntList *)__pyx_t_1);
@@ -30431,9 +30442,9 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
   __pyx_t_14 = 0;
   if (unlikely(__pyx_v_self->precomputed_collocations == Py_None)) {
     PyErr_Format(PyExc_AttributeError, "'NoneType' object has no attribute '%s'", "iteritems");
-    {__pyx_filename = __pyx_f[12]; __pyx_lineno = 415; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    {__pyx_filename = __pyx_f[11]; __pyx_lineno = 415; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   }
-  __pyx_t_3 = __Pyx_dict_iterator(__pyx_v_self->precomputed_collocations, 0, ((PyObject *)__pyx_n_s__iteritems), (&__pyx_t_2), (&__pyx_t_13)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 415; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = __Pyx_dict_iterator(__pyx_v_self->precomputed_collocations, 0, ((PyObject *)__pyx_n_s__iteritems), (&__pyx_t_2), (&__pyx_t_13)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 415; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_XDECREF(__pyx_t_1);
   __pyx_t_1 = __pyx_t_3;
@@ -30441,7 +30452,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
   while (1) {
     __pyx_t_16 = __Pyx_dict_iter_next(__pyx_t_1, __pyx_t_2, &__pyx_t_14, &__pyx_t_3, &__pyx_t_8, NULL, __pyx_t_13);
     if (unlikely(__pyx_t_16 == 0)) break;
-    if (unlikely(__pyx_t_16 == -1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 415; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (unlikely(__pyx_t_16 == -1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 415; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_GOTREF(__pyx_t_8);
     __Pyx_XDECREF(__pyx_v_pattern);
@@ -30458,7 +30469,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *                 s = ""
  *                 for word_id in pattern:
  */
-    __pyx_t_19 = (__Pyx_NegateNonNeg(PySequence_Contains(((PyObject *)__pyx_v_IJ_set), __pyx_v_pattern))); if (unlikely(__pyx_t_19 < 0)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 416; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_19 = (__Pyx_NegateNonNeg(PySequence_Contains(((PyObject *)__pyx_v_IJ_set), __pyx_v_pattern))); if (unlikely(__pyx_t_19 < 0)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 416; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     if (__pyx_t_19) {
 
       /* "/Users/vchahun/Sandbox/cdec/python/src/sa/precomputation.pxi":417
@@ -30483,7 +30494,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
         __pyx_t_8 = __pyx_v_pattern; __Pyx_INCREF(__pyx_t_8); __pyx_t_12 = 0;
         __pyx_t_4 = NULL;
       } else {
-        __pyx_t_12 = -1; __pyx_t_8 = PyObject_GetIter(__pyx_v_pattern); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 418; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_12 = -1; __pyx_t_8 = PyObject_GetIter(__pyx_v_pattern); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 418; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_8);
         __pyx_t_4 = Py_TYPE(__pyx_t_8)->tp_iternext;
       }
@@ -30493,21 +30504,21 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
           #if CYTHON_COMPILING_IN_CPYTHON
           __pyx_t_3 = PyList_GET_ITEM(__pyx_t_8, __pyx_t_12); __Pyx_INCREF(__pyx_t_3); __pyx_t_12++;
           #else
-          __pyx_t_3 = PySequence_ITEM(__pyx_t_8, __pyx_t_12); __pyx_t_12++; if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 418; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+          __pyx_t_3 = PySequence_ITEM(__pyx_t_8, __pyx_t_12); __pyx_t_12++; if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 418; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
           #endif
         } else if (!__pyx_t_4 && PyTuple_CheckExact(__pyx_t_8)) {
           if (__pyx_t_12 >= PyTuple_GET_SIZE(__pyx_t_8)) break;
           #if CYTHON_COMPILING_IN_CPYTHON
           __pyx_t_3 = PyTuple_GET_ITEM(__pyx_t_8, __pyx_t_12); __Pyx_INCREF(__pyx_t_3); __pyx_t_12++;
           #else
-          __pyx_t_3 = PySequence_ITEM(__pyx_t_8, __pyx_t_12); __pyx_t_12++; if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 418; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+          __pyx_t_3 = PySequence_ITEM(__pyx_t_8, __pyx_t_12); __pyx_t_12++; if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 418; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
           #endif
         } else {
           __pyx_t_3 = __pyx_t_4(__pyx_t_8);
           if (unlikely(!__pyx_t_3)) {
             if (PyErr_Occurred()) {
               if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-              else {__pyx_filename = __pyx_f[12]; __pyx_lineno = 418; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              else {__pyx_filename = __pyx_f[11]; __pyx_lineno = 418; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             }
             break;
           }
@@ -30524,9 +30535,9 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *                         s = s + "X "
  *                     else:
  */
-        __pyx_t_3 = PyObject_RichCompare(__pyx_v_word_id, __pyx_int_neg_1, Py_EQ); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 419; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_3 = PyObject_RichCompare(__pyx_v_word_id, __pyx_int_neg_1, Py_EQ); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 419; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_3);
-        __pyx_t_19 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_19 < 0)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 419; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_19 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_19 < 0)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 419; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
         if (__pyx_t_19) {
 
@@ -30537,7 +30548,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *                     else:
  *                         s = s + darray.id2word[word_id] + " "
  */
-          __pyx_t_3 = PyNumber_Add(__pyx_v_s, ((PyObject *)__pyx_kp_s_83)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 420; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_3 = PyNumber_Add(__pyx_v_s, ((PyObject *)__pyx_kp_s_83)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 420; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_3);
           __Pyx_DECREF(__pyx_v_s);
           __pyx_v_s = __pyx_t_3;
@@ -30553,12 +30564,12 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *                 logger.warn("ERROR: unexpected pattern %s in set of precomputed collocations", s)
  *             else:
  */
-          __pyx_t_3 = PyObject_GetItem(__pyx_v_darray->id2word, __pyx_v_word_id); if (!__pyx_t_3) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 422; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_3 = PyObject_GetItem(__pyx_v_darray->id2word, __pyx_v_word_id); if (!__pyx_t_3) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 422; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_3);
-          __pyx_t_7 = PyNumber_Add(__pyx_v_s, __pyx_t_3); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 422; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_7 = PyNumber_Add(__pyx_v_s, __pyx_t_3); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 422; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_7);
           __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-          __pyx_t_3 = PyNumber_Add(__pyx_t_7, ((PyObject *)__pyx_kp_s_67)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 422; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_3 = PyNumber_Add(__pyx_t_7, ((PyObject *)__pyx_kp_s_67)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 422; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_3);
           __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
           __Pyx_DECREF(__pyx_v_s);
@@ -30576,12 +30587,12 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *             else:
  *                 chunk = ()
  */
-      __pyx_t_8 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 423; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 423; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_8);
-      __pyx_t_3 = PyObject_GetAttr(__pyx_t_8, __pyx_n_s__warn); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 423; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = PyObject_GetAttr(__pyx_t_8, __pyx_n_s__warn); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 423; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-      __pyx_t_8 = PyTuple_New(2); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 423; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = PyTuple_New(2); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 423; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_8);
       __Pyx_INCREF(((PyObject *)__pyx_kp_s_84));
       PyTuple_SET_ITEM(__pyx_t_8, 0, ((PyObject *)__pyx_kp_s_84));
@@ -30589,7 +30600,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
       __Pyx_INCREF(__pyx_v_s);
       PyTuple_SET_ITEM(__pyx_t_8, 1, __pyx_v_s);
       __Pyx_GIVEREF(__pyx_v_s);
-      __pyx_t_7 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_8), NULL); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 423; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_7 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_8), NULL); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 423; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_7);
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       __Pyx_DECREF(((PyObject *)__pyx_t_8)); __pyx_t_8 = 0;
@@ -30640,7 +30651,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
         __pyx_t_7 = __pyx_v_pattern; __Pyx_INCREF(__pyx_t_7); __pyx_t_12 = 0;
         __pyx_t_4 = NULL;
       } else {
-        __pyx_t_12 = -1; __pyx_t_7 = PyObject_GetIter(__pyx_v_pattern); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 428; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_12 = -1; __pyx_t_7 = PyObject_GetIter(__pyx_v_pattern); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 428; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_7);
         __pyx_t_4 = Py_TYPE(__pyx_t_7)->tp_iternext;
       }
@@ -30650,21 +30661,21 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
           #if CYTHON_COMPILING_IN_CPYTHON
           __pyx_t_8 = PyList_GET_ITEM(__pyx_t_7, __pyx_t_12); __Pyx_INCREF(__pyx_t_8); __pyx_t_12++;
           #else
-          __pyx_t_8 = PySequence_ITEM(__pyx_t_7, __pyx_t_12); __pyx_t_12++; if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 428; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+          __pyx_t_8 = PySequence_ITEM(__pyx_t_7, __pyx_t_12); __pyx_t_12++; if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 428; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
           #endif
         } else if (!__pyx_t_4 && PyTuple_CheckExact(__pyx_t_7)) {
           if (__pyx_t_12 >= PyTuple_GET_SIZE(__pyx_t_7)) break;
           #if CYTHON_COMPILING_IN_CPYTHON
           __pyx_t_8 = PyTuple_GET_ITEM(__pyx_t_7, __pyx_t_12); __Pyx_INCREF(__pyx_t_8); __pyx_t_12++;
           #else
-          __pyx_t_8 = PySequence_ITEM(__pyx_t_7, __pyx_t_12); __pyx_t_12++; if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 428; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+          __pyx_t_8 = PySequence_ITEM(__pyx_t_7, __pyx_t_12); __pyx_t_12++; if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 428; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
           #endif
         } else {
           __pyx_t_8 = __pyx_t_4(__pyx_t_7);
           if (unlikely(!__pyx_t_8)) {
             if (PyErr_Occurred()) {
               if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-              else {__pyx_filename = __pyx_f[12]; __pyx_lineno = 428; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              else {__pyx_filename = __pyx_f[11]; __pyx_lineno = 428; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             }
             break;
           }
@@ -30681,9 +30692,9 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *                         max_rank = max(max_rank, pattern_rank[chunk])
  *                         arity = arity + 1
  */
-        __pyx_t_8 = PyObject_RichCompare(__pyx_v_word_id, __pyx_int_neg_1, Py_EQ); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 429; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_8 = PyObject_RichCompare(__pyx_v_word_id, __pyx_int_neg_1, Py_EQ); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 429; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_8);
-        __pyx_t_19 = __Pyx_PyObject_IsTrue(__pyx_t_8); if (unlikely(__pyx_t_19 < 0)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 429; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_19 = __Pyx_PyObject_IsTrue(__pyx_t_8); if (unlikely(__pyx_t_19 < 0)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 429; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
         if (__pyx_t_19) {
 
@@ -30694,27 +30705,27 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *                         arity = arity + 1
  *                         chunk = ()
  */
-          __pyx_t_8 = __Pyx_PyDict_GetItem(((PyObject *)__pyx_v_pattern_rank), ((PyObject *)__pyx_v_chunk)); if (!__pyx_t_8) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 430; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_8 = __Pyx_PyDict_GetItem(((PyObject *)__pyx_v_pattern_rank), ((PyObject *)__pyx_v_chunk)); if (!__pyx_t_8) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 430; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_8);
           __pyx_t_16 = __pyx_v_max_rank;
-          __pyx_t_5 = PyInt_FromLong(__pyx_t_16); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 430; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_5 = PyInt_FromLong(__pyx_t_16); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 430; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_5);
-          __pyx_t_6 = PyObject_RichCompare(__pyx_t_8, __pyx_t_5, Py_GT); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 430; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_6 = PyObject_RichCompare(__pyx_t_8, __pyx_t_5, Py_GT); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 430; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_6);
           __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-          __pyx_t_19 = __Pyx_PyObject_IsTrue(__pyx_t_6); if (unlikely(__pyx_t_19 < 0)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 430; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_19 = __Pyx_PyObject_IsTrue(__pyx_t_6); if (unlikely(__pyx_t_19 < 0)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 430; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
           if (__pyx_t_19) {
             __Pyx_INCREF(__pyx_t_8);
             __pyx_t_3 = __pyx_t_8;
           } else {
-            __pyx_t_6 = PyInt_FromLong(__pyx_t_16); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 430; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_6 = PyInt_FromLong(__pyx_t_16); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 430; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_6);
             __pyx_t_3 = __pyx_t_6;
             __pyx_t_6 = 0;
           }
           __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-          __pyx_t_16 = __Pyx_PyInt_AsInt(__pyx_t_3); if (unlikely((__pyx_t_16 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 430; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_16 = __Pyx_PyInt_AsInt(__pyx_t_3); if (unlikely((__pyx_t_16 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 430; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
           __pyx_v_max_rank = __pyx_t_16;
 
@@ -30725,7 +30736,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *                         chunk = ()
  *                     else:
  */
-          __pyx_t_3 = PyNumber_Add(__pyx_v_arity, __pyx_int_1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 431; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_3 = PyNumber_Add(__pyx_v_arity, __pyx_int_1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 431; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_3);
           __Pyx_DECREF(__pyx_v_arity);
           __pyx_v_arity = __pyx_t_3;
@@ -30752,12 +30763,12 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *                 max_rank = max(max_rank, pattern_rank[chunk])
  *                 cost_by_rank.arr[max_rank] = cost_by_rank.arr[max_rank] + (4*len(arr))
  */
-          __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 434; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 434; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_3);
           __Pyx_INCREF(__pyx_v_word_id);
           PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_v_word_id);
           __Pyx_GIVEREF(__pyx_v_word_id);
-          __pyx_t_8 = PyNumber_Add(((PyObject *)__pyx_v_chunk), ((PyObject *)__pyx_t_3)); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 434; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_8 = PyNumber_Add(((PyObject *)__pyx_v_chunk), ((PyObject *)__pyx_t_3)); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 434; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(((PyObject *)__pyx_t_8));
           __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
           __Pyx_DECREF(((PyObject *)__pyx_v_chunk));
@@ -30775,27 +30786,27 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *                 cost_by_rank.arr[max_rank] = cost_by_rank.arr[max_rank] + (4*len(arr))
  *                 count_by_rank.arr[max_rank] = count_by_rank.arr[max_rank] + (len(arr)/(arity+1))
  */
-      __pyx_t_7 = __Pyx_PyDict_GetItem(((PyObject *)__pyx_v_pattern_rank), ((PyObject *)__pyx_v_chunk)); if (!__pyx_t_7) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 435; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_7 = __Pyx_PyDict_GetItem(((PyObject *)__pyx_v_pattern_rank), ((PyObject *)__pyx_v_chunk)); if (!__pyx_t_7) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 435; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_7);
       __pyx_t_16 = __pyx_v_max_rank;
-      __pyx_t_3 = PyInt_FromLong(__pyx_t_16); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 435; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = PyInt_FromLong(__pyx_t_16); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 435; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
-      __pyx_t_6 = PyObject_RichCompare(__pyx_t_7, __pyx_t_3, Py_GT); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 435; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = PyObject_RichCompare(__pyx_t_7, __pyx_t_3, Py_GT); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 435; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_6);
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-      __pyx_t_19 = __Pyx_PyObject_IsTrue(__pyx_t_6); if (unlikely(__pyx_t_19 < 0)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 435; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_19 = __Pyx_PyObject_IsTrue(__pyx_t_6); if (unlikely(__pyx_t_19 < 0)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 435; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
       if (__pyx_t_19) {
         __Pyx_INCREF(__pyx_t_7);
         __pyx_t_8 = __pyx_t_7;
       } else {
-        __pyx_t_6 = PyInt_FromLong(__pyx_t_16); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 435; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_6 = PyInt_FromLong(__pyx_t_16); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 435; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_6);
         __pyx_t_8 = __pyx_t_6;
         __pyx_t_6 = 0;
       }
       __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-      __pyx_t_16 = __Pyx_PyInt_AsInt(__pyx_t_8); if (unlikely((__pyx_t_16 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 435; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_16 = __Pyx_PyInt_AsInt(__pyx_t_8); if (unlikely((__pyx_t_16 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 435; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
       __pyx_v_max_rank = __pyx_t_16;
 
@@ -30806,7 +30817,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *                 count_by_rank.arr[max_rank] = count_by_rank.arr[max_rank] + (len(arr)/(arity+1))
  * 
  */
-      __pyx_t_12 = PyObject_Length(__pyx_v_arr); if (unlikely(__pyx_t_12 == -1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 436; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_12 = PyObject_Length(__pyx_v_arr); if (unlikely(__pyx_t_12 == -1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 436; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       (__pyx_v_cost_by_rank->arr[__pyx_v_max_rank]) = ((__pyx_v_cost_by_rank->arr[__pyx_v_max_rank]) + (4 * __pyx_t_12));
 
       /* "/Users/vchahun/Sandbox/cdec/python/src/sa/precomputation.pxi":437
@@ -30816,22 +30827,22 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  * 
  *         cumul_cost = 0
  */
-      __pyx_t_8 = PyInt_FromLong((__pyx_v_count_by_rank->arr[__pyx_v_max_rank])); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 437; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = PyInt_FromLong((__pyx_v_count_by_rank->arr[__pyx_v_max_rank])); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 437; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_8);
-      __pyx_t_12 = PyObject_Length(__pyx_v_arr); if (unlikely(__pyx_t_12 == -1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 437; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __pyx_t_7 = PyInt_FromSsize_t(__pyx_t_12); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 437; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_12 = PyObject_Length(__pyx_v_arr); if (unlikely(__pyx_t_12 == -1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 437; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_7 = PyInt_FromSsize_t(__pyx_t_12); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 437; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_7);
-      __pyx_t_6 = PyNumber_Add(__pyx_v_arity, __pyx_int_1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 437; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = PyNumber_Add(__pyx_v_arity, __pyx_int_1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 437; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_6);
-      __pyx_t_3 = __Pyx_PyNumber_Divide(__pyx_t_7, __pyx_t_6); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 437; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = __Pyx_PyNumber_Divide(__pyx_t_7, __pyx_t_6); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 437; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
       __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-      __pyx_t_6 = PyNumber_Add(__pyx_t_8, __pyx_t_3); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 437; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = PyNumber_Add(__pyx_t_8, __pyx_t_3); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 437; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_6);
       __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-      __pyx_t_16 = __Pyx_PyInt_AsInt(__pyx_t_6); if (unlikely((__pyx_t_16 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 437; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_16 = __Pyx_PyInt_AsInt(__pyx_t_6); if (unlikely((__pyx_t_16 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 437; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
       (__pyx_v_count_by_rank->arr[__pyx_v_max_rank]) = __pyx_t_16;
     }
@@ -30876,9 +30887,9 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *             cumul_count = cumul_count + count_by_rank.arr[i]
  *             logger.debug("RANK %d\tCOUNT, COST: %d    %d\tCUMUL: %d, %d", i, count_by_rank.arr[i], cost_by_rank.arr[i], cumul_count, cumul_cost)
  */
-    __pyx_t_1 = PyInt_FromLong((__pyx_v_cost_by_rank->arr[__pyx_v_i])); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 442; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyInt_FromLong((__pyx_v_cost_by_rank->arr[__pyx_v_i])); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 442; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_6 = PyNumber_Add(__pyx_v_cumul_cost, __pyx_t_1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 442; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = PyNumber_Add(__pyx_v_cumul_cost, __pyx_t_1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 442; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     __Pyx_DECREF(__pyx_v_cumul_cost);
@@ -30892,9 +30903,9 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *             logger.debug("RANK %d\tCOUNT, COST: %d    %d\tCUMUL: %d, %d", i, count_by_rank.arr[i], cost_by_rank.arr[i], cumul_count, cumul_cost)
  * 
  */
-    __pyx_t_6 = PyInt_FromLong((__pyx_v_count_by_rank->arr[__pyx_v_i])); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 443; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = PyInt_FromLong((__pyx_v_count_by_rank->arr[__pyx_v_i])); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 443; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
-    __pyx_t_1 = PyNumber_Add(__pyx_v_cumul_count, __pyx_t_6); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 443; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyNumber_Add(__pyx_v_cumul_count, __pyx_t_6); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 443; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
     __Pyx_DECREF(__pyx_v_cumul_count);
@@ -30908,18 +30919,18 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  * 
  *         num_found_patterns = len(self.precomputed_collocations)
  */
-    __pyx_t_1 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 444; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 444; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_6 = PyObject_GetAttr(__pyx_t_1, __pyx_n_s__debug); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 444; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = PyObject_GetAttr(__pyx_t_1, __pyx_n_s__debug); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 444; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-    __pyx_t_1 = PyInt_FromLong(__pyx_v_i); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 444; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyInt_FromLong(__pyx_v_i); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 444; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_3 = PyInt_FromLong((__pyx_v_count_by_rank->arr[__pyx_v_i])); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 444; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyInt_FromLong((__pyx_v_count_by_rank->arr[__pyx_v_i])); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 444; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_8 = PyInt_FromLong((__pyx_v_cost_by_rank->arr[__pyx_v_i])); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 444; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_8 = PyInt_FromLong((__pyx_v_cost_by_rank->arr[__pyx_v_i])); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 444; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_8);
-    __pyx_t_7 = PyTuple_New(6); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 444; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_7 = PyTuple_New(6); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 444; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_7);
     __Pyx_INCREF(((PyObject *)__pyx_kp_s_85));
     PyTuple_SET_ITEM(__pyx_t_7, 0, ((PyObject *)__pyx_kp_s_85));
@@ -30939,7 +30950,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
     __pyx_t_1 = 0;
     __pyx_t_3 = 0;
     __pyx_t_8 = 0;
-    __pyx_t_8 = PyObject_Call(__pyx_t_6, ((PyObject *)__pyx_t_7), NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 444; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_8 = PyObject_Call(__pyx_t_6, ((PyObject *)__pyx_t_7), NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 444; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_8);
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
     __Pyx_DECREF(((PyObject *)__pyx_t_7)); __pyx_t_7 = 0;
@@ -30955,9 +30966,9 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  */
   __pyx_t_8 = __pyx_v_self->precomputed_collocations;
   __Pyx_INCREF(__pyx_t_8);
-  __pyx_t_2 = PyObject_Length(__pyx_t_8); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 446; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyObject_Length(__pyx_t_8); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 446; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-  __pyx_t_8 = PyInt_FromSsize_t(__pyx_t_2); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 446; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_8 = PyInt_FromSsize_t(__pyx_t_2); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 446; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_8);
   __pyx_v_num_found_patterns = __pyx_t_8;
   __pyx_t_8 = 0;
@@ -30969,7 +30980,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *             if pattern not in self.precomputed_collocations:
  *                 self.precomputed_collocations[pattern] = IntList()
  */
-  __pyx_t_8 = PyObject_GetIter(((PyObject *)__pyx_v_IJ_set)); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 447; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_8 = PyObject_GetIter(((PyObject *)__pyx_v_IJ_set)); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 447; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_8);
   __pyx_t_4 = Py_TYPE(__pyx_t_8)->tp_iternext;
   for (;;) {
@@ -30978,7 +30989,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
       if (unlikely(!__pyx_t_7)) {
         if (PyErr_Occurred()) {
           if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-          else {__pyx_filename = __pyx_f[12]; __pyx_lineno = 447; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          else {__pyx_filename = __pyx_f[11]; __pyx_lineno = 447; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         }
         break;
       }
@@ -30995,7 +31006,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *                 self.precomputed_collocations[pattern] = IntList()
  * 
  */
-    __pyx_t_19 = (__Pyx_NegateNonNeg(PySequence_Contains(__pyx_v_self->precomputed_collocations, __pyx_v_pattern))); if (unlikely(__pyx_t_19 < 0)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 448; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_19 = (__Pyx_NegateNonNeg(PySequence_Contains(__pyx_v_self->precomputed_collocations, __pyx_v_pattern))); if (unlikely(__pyx_t_19 < 0)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 448; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     if (__pyx_t_19) {
 
       /* "/Users/vchahun/Sandbox/cdec/python/src/sa/precomputation.pxi":449
@@ -31005,9 +31016,9 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  * 
  *         cdef float stop_time = monitor_cpu()
  */
-      __pyx_t_7 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 449; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_7 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 449; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_7);
-      if (PyObject_SetItem(__pyx_v_self->precomputed_collocations, __pyx_v_pattern, __pyx_t_7) < 0) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 449; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      if (PyObject_SetItem(__pyx_v_self->precomputed_collocations, __pyx_v_pattern, __pyx_t_7) < 0) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 449; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
       goto __pyx_L64;
     }
@@ -31031,18 +31042,18 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *         logger.info("Precomputed inverted index for %d patterns ", len(self.precomputed_index))
  *         logger.info("Precomputation took %f seconds", (stop_time - start_time))
  */
-  __pyx_t_8 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 452; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_8 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 452; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_8);
-  __pyx_t_7 = PyObject_GetAttr(__pyx_t_8, __pyx_n_s__info); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 452; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_7 = PyObject_GetAttr(__pyx_t_8, __pyx_n_s__info); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 452; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_7);
   __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
   __pyx_t_8 = __pyx_v_self->precomputed_collocations;
   __Pyx_INCREF(__pyx_t_8);
-  __pyx_t_2 = PyObject_Length(__pyx_t_8); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 452; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyObject_Length(__pyx_t_8); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 452; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-  __pyx_t_8 = PyInt_FromSsize_t(__pyx_t_2); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 452; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_8 = PyInt_FromSsize_t(__pyx_t_2); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 452; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_8);
-  __pyx_t_6 = PyTuple_New(4); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 452; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_6 = PyTuple_New(4); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 452; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_6);
   __Pyx_INCREF(((PyObject *)__pyx_kp_s_86));
   PyTuple_SET_ITEM(__pyx_t_6, 0, ((PyObject *)__pyx_kp_s_86));
@@ -31056,7 +31067,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
   PyTuple_SET_ITEM(__pyx_t_6, 3, __pyx_v_x);
   __Pyx_GIVEREF(__pyx_v_x);
   __pyx_t_8 = 0;
-  __pyx_t_8 = PyObject_Call(__pyx_t_7, ((PyObject *)__pyx_t_6), NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 452; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_8 = PyObject_Call(__pyx_t_7, ((PyObject *)__pyx_t_6), NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 452; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_8);
   __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
   __Pyx_DECREF(((PyObject *)__pyx_t_6)); __pyx_t_6 = 0;
@@ -31068,18 +31079,18 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *         logger.info("Precomputed inverted index for %d patterns ", len(self.precomputed_index))             # <<<<<<<<<<<<<<
  *         logger.info("Precomputation took %f seconds", (stop_time - start_time))
  */
-  __pyx_t_8 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 453; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_8 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 453; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_8);
-  __pyx_t_6 = PyObject_GetAttr(__pyx_t_8, __pyx_n_s__info); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 453; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_6 = PyObject_GetAttr(__pyx_t_8, __pyx_n_s__info); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 453; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_6);
   __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
   __pyx_t_8 = __pyx_v_self->precomputed_index;
   __Pyx_INCREF(__pyx_t_8);
-  __pyx_t_2 = PyObject_Length(__pyx_t_8); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 453; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyObject_Length(__pyx_t_8); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 453; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-  __pyx_t_8 = PyInt_FromSsize_t(__pyx_t_2); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 453; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_8 = PyInt_FromSsize_t(__pyx_t_2); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 453; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_8);
-  __pyx_t_7 = PyTuple_New(2); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 453; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_7 = PyTuple_New(2); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 453; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_7);
   __Pyx_INCREF(((PyObject *)__pyx_kp_s_87));
   PyTuple_SET_ITEM(__pyx_t_7, 0, ((PyObject *)__pyx_kp_s_87));
@@ -31087,7 +31098,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
   PyTuple_SET_ITEM(__pyx_t_7, 1, __pyx_t_8);
   __Pyx_GIVEREF(__pyx_t_8);
   __pyx_t_8 = 0;
-  __pyx_t_8 = PyObject_Call(__pyx_t_6, ((PyObject *)__pyx_t_7), NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 453; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_8 = PyObject_Call(__pyx_t_6, ((PyObject *)__pyx_t_7), NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 453; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_8);
   __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
   __Pyx_DECREF(((PyObject *)__pyx_t_7)); __pyx_t_7 = 0;
@@ -31098,14 +31109,14 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
  *         logger.info("Precomputed inverted index for %d patterns ", len(self.precomputed_index))
  *         logger.info("Precomputation took %f seconds", (stop_time - start_time))             # <<<<<<<<<<<<<<
  */
-  __pyx_t_8 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 454; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_8 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 454; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_8);
-  __pyx_t_7 = PyObject_GetAttr(__pyx_t_8, __pyx_n_s__info); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 454; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_7 = PyObject_GetAttr(__pyx_t_8, __pyx_n_s__info); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 454; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_7);
   __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-  __pyx_t_8 = PyFloat_FromDouble((__pyx_v_stop_time - __pyx_v_start_time)); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 454; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_8 = PyFloat_FromDouble((__pyx_v_stop_time - __pyx_v_start_time)); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 454; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_8);
-  __pyx_t_6 = PyTuple_New(2); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 454; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_6 = PyTuple_New(2); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 454; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_6);
   __Pyx_INCREF(((PyObject *)__pyx_kp_s_88));
   PyTuple_SET_ITEM(__pyx_t_6, 0, ((PyObject *)__pyx_kp_s_88));
@@ -31113,7 +31124,7 @@ static PyObject *__pyx_pf_3_sa_14Precomputation_6precompute(struct __pyx_obj_3_s
   PyTuple_SET_ITEM(__pyx_t_6, 1, __pyx_t_8);
   __Pyx_GIVEREF(__pyx_t_8);
   __pyx_t_8 = 0;
-  __pyx_t_8 = PyObject_Call(__pyx_t_7, ((PyObject *)__pyx_t_6), NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 454; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_8 = PyObject_Call(__pyx_t_7, ((PyObject *)__pyx_t_6), NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 454; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_8);
   __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
   __Pyx_DECREF(((PyObject *)__pyx_t_6)); __pyx_t_6 = 0;
@@ -31218,7 +31229,7 @@ static int __pyx_pw_3_sa_11SuffixArray_1__cinit__(PyObject *__pyx_v_self, PyObje
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "__cinit__") < 0)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 11; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "__cinit__") < 0)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 11; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else {
       switch (PyTuple_GET_SIZE(__pyx_args)) {
@@ -31235,7 +31246,7 @@ static int __pyx_pw_3_sa_11SuffixArray_1__cinit__(PyObject *__pyx_v_self, PyObje
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("__cinit__", 0, 0, 3, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[13]; __pyx_lineno = 11; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+  __Pyx_RaiseArgtupleInvalid("__cinit__", 0, 0, 3, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[12]; __pyx_lineno = 11; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_AddTraceback("_sa.SuffixArray.__cinit__", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -31265,7 +31276,7 @@ static int __pyx_pf_3_sa_11SuffixArray___cinit__(struct __pyx_obj_3_sa_SuffixArr
  *         self.sa = IntList()
  *         self.ha = IntList()
  */
-  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_DataArray)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 12; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_DataArray)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 12; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_GIVEREF(__pyx_t_1);
   __Pyx_GOTREF(__pyx_v_self->darray);
@@ -31280,7 +31291,7 @@ static int __pyx_pf_3_sa_11SuffixArray___cinit__(struct __pyx_obj_3_sa_SuffixArr
  *         self.ha = IntList()
  *         if from_binary:
  */
-  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 13; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 13; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_GIVEREF(__pyx_t_1);
   __Pyx_GOTREF(__pyx_v_self->sa);
@@ -31295,7 +31306,7 @@ static int __pyx_pf_3_sa_11SuffixArray___cinit__(struct __pyx_obj_3_sa_SuffixArr
  *         if from_binary:
  *             self.read_binary(from_binary)
  */
-  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 14; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 14; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_GIVEREF(__pyx_t_1);
   __Pyx_GOTREF(__pyx_v_self->ha);
@@ -31310,7 +31321,7 @@ static int __pyx_pf_3_sa_11SuffixArray___cinit__(struct __pyx_obj_3_sa_SuffixArr
  *             self.read_binary(from_binary)
  *         elif from_text:
  */
-  __pyx_t_2 = __Pyx_PyObject_IsTrue(__pyx_v_from_binary); if (unlikely(__pyx_t_2 < 0)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 15; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = __Pyx_PyObject_IsTrue(__pyx_v_from_binary); if (unlikely(__pyx_t_2 < 0)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 15; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   if (__pyx_t_2) {
 
     /* "/Users/vchahun/Sandbox/cdec/python/src/sa/suffix_array.pxi":16
@@ -31320,14 +31331,14 @@ static int __pyx_pf_3_sa_11SuffixArray___cinit__(struct __pyx_obj_3_sa_SuffixArr
  *         elif from_text:
  *             self.read_text(from_text, side)
  */
-    __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_v_self), __pyx_n_s__read_binary); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 16; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_v_self), __pyx_n_s__read_binary); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 16; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 16; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 16; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_INCREF(__pyx_v_from_binary);
     PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_v_from_binary);
     __Pyx_GIVEREF(__pyx_v_from_binary);
-    __pyx_t_4 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 16; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 16; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
@@ -31342,7 +31353,7 @@ static int __pyx_pf_3_sa_11SuffixArray___cinit__(struct __pyx_obj_3_sa_SuffixArr
  *             self.read_text(from_text, side)
  * 
  */
-  __pyx_t_2 = __Pyx_PyObject_IsTrue(__pyx_v_from_text); if (unlikely(__pyx_t_2 < 0)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 17; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = __Pyx_PyObject_IsTrue(__pyx_v_from_text); if (unlikely(__pyx_t_2 < 0)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 17; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   if (__pyx_t_2) {
 
     /* "/Users/vchahun/Sandbox/cdec/python/src/sa/suffix_array.pxi":18
@@ -31352,9 +31363,9 @@ static int __pyx_pf_3_sa_11SuffixArray___cinit__(struct __pyx_obj_3_sa_SuffixArr
  * 
  *     def __getitem__(self, i):
  */
-    __pyx_t_4 = PyObject_GetAttr(((PyObject *)__pyx_v_self), __pyx_n_s__read_text); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 18; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyObject_GetAttr(((PyObject *)__pyx_v_self), __pyx_n_s__read_text); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 18; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 18; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 18; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_INCREF(__pyx_v_from_text);
     PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_v_from_text);
@@ -31362,7 +31373,7 @@ static int __pyx_pf_3_sa_11SuffixArray___cinit__(struct __pyx_obj_3_sa_SuffixArr
     __Pyx_INCREF(__pyx_v_side);
     PyTuple_SET_ITEM(__pyx_t_3, 1, __pyx_v_side);
     __Pyx_GIVEREF(__pyx_v_side);
-    __pyx_t_1 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 18; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 18; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
@@ -31421,8 +31432,8 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_2__getitem__(struct __pyx_obj_3_sa_
  *     def getSentId(self, i):
  */
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __Pyx_PyIndex_AsSsize_t(__pyx_v_i); if (unlikely((__pyx_t_1 == (Py_ssize_t)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 21; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_t_2 = PyInt_FromLong((__pyx_v_self->sa->arr[__pyx_t_1])); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 21; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_PyIndex_AsSsize_t(__pyx_v_i); if (unlikely((__pyx_t_1 == (Py_ssize_t)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 21; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyInt_FromLong((__pyx_v_self->sa->arr[__pyx_t_1])); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 21; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __pyx_r = __pyx_t_2;
   __pyx_t_2 = 0;
@@ -31478,14 +31489,14 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_4getSentId(struct __pyx_obj_3_sa_Su
  *     def getSent(self, i):
  */
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_v_self->darray), __pyx_n_s__getSentId); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 24; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_v_self->darray), __pyx_n_s__getSentId); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 24; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 24; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 24; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_INCREF(__pyx_v_i);
   PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_v_i);
   __Pyx_GIVEREF(__pyx_v_i);
-  __pyx_t_3 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 24; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 24; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
@@ -31545,14 +31556,14 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_6getSent(struct __pyx_obj_3_sa_Suff
  *     def getSentPos(self, loc):
  */
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_v_self->darray), __pyx_n_s__getSent); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 27; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_v_self->darray), __pyx_n_s__getSent); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 27; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 27; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 27; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_INCREF(__pyx_v_i);
   PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_v_i);
   __Pyx_GIVEREF(__pyx_v_i);
-  __pyx_t_3 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 27; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 27; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
@@ -31612,14 +31623,14 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_8getSentPos(struct __pyx_obj_3_sa_S
  *     def read_text(self, filename, side):
  */
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_v_self->darray), __pyx_n_s__getSentPos); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 30; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_v_self->darray), __pyx_n_s__getSentPos); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 30; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 30; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 30; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_INCREF(__pyx_v_loc);
   PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_v_loc);
   __Pyx_GIVEREF(__pyx_v_loc);
-  __pyx_t_3 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 30; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 30; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
@@ -31670,11 +31681,11 @@ static PyObject *__pyx_pw_3_sa_11SuffixArray_11read_text(PyObject *__pyx_v_self,
         case  1:
         if (likely((values[1] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__side)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("read_text", 1, 2, 2, 1); {__pyx_filename = __pyx_f[13]; __pyx_lineno = 32; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("read_text", 1, 2, 2, 1); {__pyx_filename = __pyx_f[12]; __pyx_lineno = 32; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "read_text") < 0)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 32; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "read_text") < 0)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 32; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else if (PyTuple_GET_SIZE(__pyx_args) != 2) {
       goto __pyx_L5_argtuple_error;
@@ -31687,7 +31698,7 @@ static PyObject *__pyx_pw_3_sa_11SuffixArray_11read_text(PyObject *__pyx_v_self,
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("read_text", 1, 2, 2, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[13]; __pyx_lineno = 32; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+  __Pyx_RaiseArgtupleInvalid("read_text", 1, 2, 2, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[12]; __pyx_lineno = 32; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_AddTraceback("_sa.SuffixArray.read_text", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -31745,15 +31756,15 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_10read_text(struct __pyx_obj_3_sa_S
  *         N = len(self.darray)
  *         V = len(self.darray.id2word)
  */
-  __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 38; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 38; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_1));
-  if (PyDict_SetItem(__pyx_t_1, ((PyObject *)__pyx_n_s__from_text), __pyx_v_filename) < 0) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 38; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (PyDict_SetItem(__pyx_t_1, ((PyObject *)__pyx_n_s__side), __pyx_v_side) < 0) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 38; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_t_2 = __Pyx_PyBool_FromLong(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 38; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_1, ((PyObject *)__pyx_n_s__from_text), __pyx_v_filename) < 0) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 38; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_1, ((PyObject *)__pyx_n_s__side), __pyx_v_side) < 0) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 38; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = __Pyx_PyBool_FromLong(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 38; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
-  if (PyDict_SetItem(__pyx_t_1, ((PyObject *)__pyx_n_s__use_sent_id), __pyx_t_2) < 0) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 38; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_1, ((PyObject *)__pyx_n_s__use_sent_id), __pyx_t_2) < 0) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 38; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_2 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_DataArray)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_1)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 38; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_DataArray)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_1)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 38; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
   __Pyx_GIVEREF(__pyx_t_2);
@@ -31771,7 +31782,7 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_10read_text(struct __pyx_obj_3_sa_S
  */
   __pyx_t_2 = ((PyObject *)__pyx_v_self->darray);
   __Pyx_INCREF(__pyx_t_2);
-  __pyx_t_3 = PyObject_Length(__pyx_t_2); if (unlikely(__pyx_t_3 == -1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 39; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_Length(__pyx_t_2); if (unlikely(__pyx_t_3 == -1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 39; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __pyx_v_N = __pyx_t_3;
 
@@ -31784,7 +31795,7 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_10read_text(struct __pyx_obj_3_sa_S
  */
   __pyx_t_2 = __pyx_v_self->darray->id2word;
   __Pyx_INCREF(__pyx_t_2);
-  __pyx_t_3 = PyObject_Length(__pyx_t_2); if (unlikely(__pyx_t_3 == -1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 40; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_Length(__pyx_t_2); if (unlikely(__pyx_t_3 == -1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 40; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __pyx_v_V = __pyx_t_3;
 
@@ -31795,13 +31806,13 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_10read_text(struct __pyx_obj_3_sa_S
  *         self.ha = IntList(initial_len=V+1)
  * 
  */
-  __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 42; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 42; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_2));
-  __pyx_t_1 = PyInt_FromLong(__pyx_v_N); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 42; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyInt_FromLong(__pyx_v_N); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 42; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  if (PyDict_SetItem(__pyx_t_2, ((PyObject *)__pyx_n_s__initial_len), __pyx_t_1) < 0) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 42; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_2, ((PyObject *)__pyx_n_s__initial_len), __pyx_t_1) < 0) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 42; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_2)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 42; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_2)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 42; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
   __Pyx_GIVEREF(__pyx_t_1);
@@ -31817,13 +31828,13 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_10read_text(struct __pyx_obj_3_sa_S
  * 
  *         isa = IntList(initial_len=N)
  */
-  __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 43; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 43; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_1));
-  __pyx_t_2 = PyInt_FromLong((__pyx_v_V + 1)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 43; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyInt_FromLong((__pyx_v_V + 1)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 43; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
-  if (PyDict_SetItem(__pyx_t_1, ((PyObject *)__pyx_n_s__initial_len), __pyx_t_2) < 0) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 43; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_1, ((PyObject *)__pyx_n_s__initial_len), __pyx_t_2) < 0) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 43; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_2 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_1)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 43; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_1)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 43; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
   __Pyx_GIVEREF(__pyx_t_2);
@@ -31839,13 +31850,13 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_10read_text(struct __pyx_obj_3_sa_S
  *         word_count = IntList(initial_len=V+1)
  * 
  */
-  __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 45; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 45; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_2));
-  __pyx_t_1 = PyInt_FromLong(__pyx_v_N); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 45; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyInt_FromLong(__pyx_v_N); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 45; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  if (PyDict_SetItem(__pyx_t_2, ((PyObject *)__pyx_n_s__initial_len), __pyx_t_1) < 0) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 45; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_2, ((PyObject *)__pyx_n_s__initial_len), __pyx_t_1) < 0) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 45; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_2)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 45; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_2)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 45; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
   __pyx_v_isa = ((struct __pyx_obj_3_sa_IntList *)__pyx_t_1);
@@ -31858,13 +31869,13 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_10read_text(struct __pyx_obj_3_sa_S
  * 
  *         '''Step 1: bucket sort data'''
  */
-  __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 46; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 46; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_1));
-  __pyx_t_2 = PyInt_FromLong((__pyx_v_V + 1)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 46; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyInt_FromLong((__pyx_v_V + 1)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 46; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
-  if (PyDict_SetItem(__pyx_t_1, ((PyObject *)__pyx_n_s__initial_len), __pyx_t_2) < 0) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 46; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_1, ((PyObject *)__pyx_n_s__initial_len), __pyx_t_2) < 0) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 46; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_2 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_1)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 46; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_1)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 46; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
   __pyx_v_word_count = ((struct __pyx_obj_3_sa_IntList *)__pyx_t_2);
@@ -32099,14 +32110,14 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_10read_text(struct __pyx_obj_3_sa_S
  * 
  *         '''Step 2: prefix-doubling sort'''
  */
-  __pyx_t_2 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 77; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 77; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_1 = PyObject_GetAttr(__pyx_t_2, __pyx_n_s__info); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 77; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_GetAttr(__pyx_t_2, __pyx_n_s__info); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 77; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_2 = PyFloat_FromDouble((__pyx_f_3_sa_monitor_cpu() - __pyx_v_sort_start_time)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 77; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyFloat_FromDouble((__pyx_f_3_sa_monitor_cpu() - __pyx_v_sort_start_time)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 77; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_9 = PyTuple_New(2); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 77; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_9 = PyTuple_New(2); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 77; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_9);
   __Pyx_INCREF(((PyObject *)__pyx_kp_s_89));
   PyTuple_SET_ITEM(__pyx_t_9, 0, ((PyObject *)__pyx_kp_s_89));
@@ -32114,7 +32125,7 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_10read_text(struct __pyx_obj_3_sa_S
   PyTuple_SET_ITEM(__pyx_t_9, 1, __pyx_t_2);
   __Pyx_GIVEREF(__pyx_t_2);
   __pyx_t_2 = 0;
-  __pyx_t_2 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_9), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 77; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_9), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 77; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __Pyx_DECREF(((PyObject *)__pyx_t_9)); __pyx_t_9 = 0;
@@ -32156,14 +32167,14 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_10read_text(struct __pyx_obj_3_sa_S
  *             i = 0
  *             skip = 0
  */
-    __pyx_t_2 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 83; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 83; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_9 = PyObject_GetAttr(__pyx_t_2, __pyx_n_s__debug); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 83; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_9 = PyObject_GetAttr(__pyx_t_2, __pyx_n_s__debug); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 83; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_9);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __pyx_t_2 = PyInt_FromLong(__pyx_v_h); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 83; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyInt_FromLong(__pyx_v_h); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 83; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_1 = PyTuple_New(2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 83; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyTuple_New(2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 83; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_INCREF(((PyObject *)__pyx_kp_s_90));
     PyTuple_SET_ITEM(__pyx_t_1, 0, ((PyObject *)__pyx_kp_s_90));
@@ -32171,7 +32182,7 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_10read_text(struct __pyx_obj_3_sa_S
     PyTuple_SET_ITEM(__pyx_t_1, 1, __pyx_t_2);
     __Pyx_GIVEREF(__pyx_t_2);
     __pyx_t_2 = 0;
-    __pyx_t_2 = PyObject_Call(__pyx_t_9, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 83; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyObject_Call(__pyx_t_9, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 83; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
     __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
@@ -32284,15 +32295,15 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_10read_text(struct __pyx_obj_3_sa_S
  *                     i = j+1
  *             if skip < 0:
  */
-        __pyx_t_2 = PyObject_GetAttr(((PyObject *)__pyx_v_self), __pyx_n_s__q3sort); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 95; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_2 = PyObject_GetAttr(((PyObject *)__pyx_v_self), __pyx_n_s__q3sort); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 95; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_2);
-        __pyx_t_1 = PyInt_FromLong(__pyx_v_i); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 95; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_1 = PyInt_FromLong(__pyx_v_i); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 95; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_1);
-        __pyx_t_9 = PyInt_FromLong(__pyx_v_j); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 95; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_9 = PyInt_FromLong(__pyx_v_j); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 95; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_9);
-        __pyx_t_10 = PyInt_FromLong(__pyx_v_h); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 95; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_10 = PyInt_FromLong(__pyx_v_h); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 95; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_10);
-        __pyx_t_11 = PyTuple_New(4); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 95; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_11 = PyTuple_New(4); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 95; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_11);
         PyTuple_SET_ITEM(__pyx_t_11, 0, __pyx_t_1);
         __Pyx_GIVEREF(__pyx_t_1);
@@ -32306,7 +32317,7 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_10read_text(struct __pyx_obj_3_sa_S
         __pyx_t_1 = 0;
         __pyx_t_9 = 0;
         __pyx_t_10 = 0;
-        __pyx_t_10 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_11), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 95; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_10 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_11), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 95; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_10);
         __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
         __Pyx_DECREF(((PyObject *)__pyx_t_11)); __pyx_t_11 = 0;
@@ -32362,14 +32373,14 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_10read_text(struct __pyx_obj_3_sa_S
  * 
  *         '''Step 3: read off suffix array from inverse suffix array'''
  */
-    __pyx_t_10 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 100; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_10 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 100; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_10);
-    __pyx_t_11 = PyObject_GetAttr(__pyx_t_10, __pyx_n_s__debug); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 100; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_11 = PyObject_GetAttr(__pyx_t_10, __pyx_n_s__debug); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 100; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_11);
     __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-    __pyx_t_10 = PyFloat_FromDouble((__pyx_f_3_sa_monitor_cpu() - __pyx_v_sort_start_time)); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 100; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_10 = PyFloat_FromDouble((__pyx_f_3_sa_monitor_cpu() - __pyx_v_sort_start_time)); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 100; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_10);
-    __pyx_t_2 = PyTuple_New(2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 100; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyTuple_New(2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 100; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_INCREF(((PyObject *)__pyx_kp_s_91));
     PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_kp_s_91));
@@ -32377,7 +32388,7 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_10read_text(struct __pyx_obj_3_sa_S
     PyTuple_SET_ITEM(__pyx_t_2, 1, __pyx_t_10);
     __Pyx_GIVEREF(__pyx_t_10);
     __pyx_t_10 = 0;
-    __pyx_t_10 = PyObject_Call(__pyx_t_11, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 100; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_10 = PyObject_Call(__pyx_t_11, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 100; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_10);
     __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
     __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
@@ -32391,12 +32402,12 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_10read_text(struct __pyx_obj_3_sa_S
  *         for i from 0 <= i < N:
  *             j = isa.arr[i]
  */
-  __pyx_t_10 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 103; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_10 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 103; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_10);
-  __pyx_t_2 = PyObject_GetAttr(__pyx_t_10, __pyx_n_s__info); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 103; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyObject_GetAttr(__pyx_t_10, __pyx_n_s__info); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 103; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-  __pyx_t_10 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_k_tuple_93), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 103; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_10 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_k_tuple_93), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 103; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_10);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
@@ -32437,14 +32448,14 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_10read_text(struct __pyx_obj_3_sa_S
  * 
  *     def q3sort(self, int i, int j, int h, IntList isa, pad=""):
  */
-  __pyx_t_10 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 107; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_10 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 107; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_10);
-  __pyx_t_2 = PyObject_GetAttr(__pyx_t_10, __pyx_n_s__info); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 107; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyObject_GetAttr(__pyx_t_10, __pyx_n_s__info); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 107; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-  __pyx_t_10 = PyFloat_FromDouble((__pyx_f_3_sa_monitor_cpu() - __pyx_v_start_time)); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 107; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_10 = PyFloat_FromDouble((__pyx_f_3_sa_monitor_cpu() - __pyx_v_start_time)); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 107; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_10);
-  __pyx_t_11 = PyTuple_New(2); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 107; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_11 = PyTuple_New(2); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 107; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_11);
   __Pyx_INCREF(((PyObject *)__pyx_kp_s_94));
   PyTuple_SET_ITEM(__pyx_t_11, 0, ((PyObject *)__pyx_kp_s_94));
@@ -32452,7 +32463,7 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_10read_text(struct __pyx_obj_3_sa_S
   PyTuple_SET_ITEM(__pyx_t_11, 1, __pyx_t_10);
   __Pyx_GIVEREF(__pyx_t_10);
   __pyx_t_10 = 0;
-  __pyx_t_10 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_11), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 107; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_10 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_11), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 107; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_10);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __Pyx_DECREF(((PyObject *)__pyx_t_11)); __pyx_t_11 = 0;
@@ -32512,17 +32523,17 @@ static PyObject *__pyx_pw_3_sa_11SuffixArray_13q3sort(PyObject *__pyx_v_self, Py
         case  1:
         if (likely((values[1] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__j)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("q3sort", 0, 4, 5, 1); {__pyx_filename = __pyx_f[13]; __pyx_lineno = 109; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("q3sort", 0, 4, 5, 1); {__pyx_filename = __pyx_f[12]; __pyx_lineno = 109; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
         case  2:
         if (likely((values[2] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__h)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("q3sort", 0, 4, 5, 2); {__pyx_filename = __pyx_f[13]; __pyx_lineno = 109; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("q3sort", 0, 4, 5, 2); {__pyx_filename = __pyx_f[12]; __pyx_lineno = 109; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
         case  3:
         if (likely((values[3] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__isa)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("q3sort", 0, 4, 5, 3); {__pyx_filename = __pyx_f[13]; __pyx_lineno = 109; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("q3sort", 0, 4, 5, 3); {__pyx_filename = __pyx_f[12]; __pyx_lineno = 109; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
         case  4:
         if (kw_args > 0) {
@@ -32531,7 +32542,7 @@ static PyObject *__pyx_pw_3_sa_11SuffixArray_13q3sort(PyObject *__pyx_v_self, Py
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "q3sort") < 0)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 109; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "q3sort") < 0)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 109; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else {
       switch (PyTuple_GET_SIZE(__pyx_args)) {
@@ -32544,21 +32555,21 @@ static PyObject *__pyx_pw_3_sa_11SuffixArray_13q3sort(PyObject *__pyx_v_self, Py
         default: goto __pyx_L5_argtuple_error;
       }
     }
-    __pyx_v_i = __Pyx_PyInt_AsInt(values[0]); if (unlikely((__pyx_v_i == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 109; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
-    __pyx_v_j = __Pyx_PyInt_AsInt(values[1]); if (unlikely((__pyx_v_j == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 109; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
-    __pyx_v_h = __Pyx_PyInt_AsInt(values[2]); if (unlikely((__pyx_v_h == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 109; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+    __pyx_v_i = __Pyx_PyInt_AsInt(values[0]); if (unlikely((__pyx_v_i == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 109; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+    __pyx_v_j = __Pyx_PyInt_AsInt(values[1]); if (unlikely((__pyx_v_j == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 109; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+    __pyx_v_h = __Pyx_PyInt_AsInt(values[2]); if (unlikely((__pyx_v_h == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 109; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
     __pyx_v_isa = ((struct __pyx_obj_3_sa_IntList *)values[3]);
     __pyx_v_pad = values[4];
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("q3sort", 0, 4, 5, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[13]; __pyx_lineno = 109; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+  __Pyx_RaiseArgtupleInvalid("q3sort", 0, 4, 5, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[12]; __pyx_lineno = 109; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_AddTraceback("_sa.SuffixArray.q3sort", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
   return NULL;
   __pyx_L4_argument_unpacking_done:;
-  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_isa), __pyx_ptype_3_sa_IntList, 1, "isa", 0))) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 109; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_isa), __pyx_ptype_3_sa_IntList, 1, "isa", 0))) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 109; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_r = __pyx_pf_3_sa_11SuffixArray_12q3sort(((struct __pyx_obj_3_sa_SuffixArray *)__pyx_v_self), __pyx_v_i, __pyx_v_j, __pyx_v_h, __pyx_v_isa, __pyx_v_pad);
   goto __pyx_L0;
   __pyx_L1_error:;
@@ -32615,11 +32626,11 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_12q3sort(struct __pyx_obj_3_sa_Suff
  *         if j-i == -1:    # recursive base case -- empty interval
  *             return
  */
-    __pyx_t_2 = PyInt_FromLong(__pyx_v_i); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 117; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyInt_FromLong(__pyx_v_i); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 117; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_3 = PyInt_FromLong(__pyx_v_j); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 117; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyInt_FromLong(__pyx_v_j); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 117; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_4 = PyTuple_New(2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 117; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyTuple_New(2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 117; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     PyTuple_SET_ITEM(__pyx_t_4, 0, __pyx_t_2);
     __Pyx_GIVEREF(__pyx_t_2);
@@ -32627,20 +32638,20 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_12q3sort(struct __pyx_obj_3_sa_Suff
     __Pyx_GIVEREF(__pyx_t_3);
     __pyx_t_2 = 0;
     __pyx_t_3 = 0;
-    __pyx_t_3 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_95), ((PyObject *)__pyx_t_4)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 117; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_95), ((PyObject *)__pyx_t_4)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 117; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(((PyObject *)__pyx_t_3));
     __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
-    __pyx_t_4 = PyTuple_New(1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 117; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyTuple_New(1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 117; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     PyTuple_SET_ITEM(__pyx_t_4, 0, ((PyObject *)__pyx_t_3));
     __Pyx_GIVEREF(((PyObject *)__pyx_t_3));
     __pyx_t_3 = 0;
-    __pyx_t_3 = PyObject_Call(__pyx_builtin_Exception, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 117; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_Call(__pyx_builtin_Exception, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 117; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
     __Pyx_Raise(__pyx_t_3, 0, 0, 0);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    {__pyx_filename = __pyx_f[13]; __pyx_lineno = 117; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    {__pyx_filename = __pyx_f[12]; __pyx_lineno = 117; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     goto __pyx_L3;
   }
   __pyx_L3:;
@@ -32978,17 +32989,17 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_12q3sort(struct __pyx_obj_3_sa_Suff
  * 
  *         # update suffixes with pivot value
  */
-  __pyx_t_3 = PyObject_GetAttr(((PyObject *)__pyx_v_self), __pyx_n_s__q3sort); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 165; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_GetAttr(((PyObject *)__pyx_v_self), __pyx_n_s__q3sort); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 165; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
-  __pyx_t_4 = PyInt_FromLong(__pyx_v_i); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 165; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_4 = PyInt_FromLong(__pyx_v_i); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 165; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_4);
-  __pyx_t_2 = PyInt_FromLong((__pyx_v_phead - 1)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 165; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyInt_FromLong((__pyx_v_phead - 1)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 165; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_6 = PyInt_FromLong(__pyx_v_h); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 165; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_6 = PyInt_FromLong(__pyx_v_h); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 165; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_6);
-  __pyx_t_7 = PyNumber_Add(__pyx_v_pad, ((PyObject *)__pyx_kp_s_48)); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 165; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_7 = PyNumber_Add(__pyx_v_pad, ((PyObject *)__pyx_kp_s_48)); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 165; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_7);
-  __pyx_t_8 = PyTuple_New(5); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 165; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_8 = PyTuple_New(5); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 165; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_8);
   PyTuple_SET_ITEM(__pyx_t_8, 0, __pyx_t_4);
   __Pyx_GIVEREF(__pyx_t_4);
@@ -33005,7 +33016,7 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_12q3sort(struct __pyx_obj_3_sa_Suff
   __pyx_t_2 = 0;
   __pyx_t_6 = 0;
   __pyx_t_7 = 0;
-  __pyx_t_7 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_8), NULL); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 165; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_7 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_8), NULL); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 165; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_7);
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   __Pyx_DECREF(((PyObject *)__pyx_t_8)); __pyx_t_8 = 0;
@@ -33060,17 +33071,17 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_12q3sort(struct __pyx_obj_3_sa_Suff
  * 
  * 
  */
-  __pyx_t_7 = PyObject_GetAttr(((PyObject *)__pyx_v_self), __pyx_n_s__q3sort); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 175; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_7 = PyObject_GetAttr(((PyObject *)__pyx_v_self), __pyx_n_s__q3sort); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 175; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_7);
-  __pyx_t_8 = PyInt_FromLong((__pyx_v_ptail + 1)); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 175; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_8 = PyInt_FromLong((__pyx_v_ptail + 1)); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 175; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_8);
-  __pyx_t_3 = PyInt_FromLong(__pyx_v_j); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 175; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyInt_FromLong(__pyx_v_j); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 175; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
-  __pyx_t_6 = PyInt_FromLong(__pyx_v_h); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 175; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_6 = PyInt_FromLong(__pyx_v_h); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 175; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_6);
-  __pyx_t_2 = PyNumber_Add(__pyx_v_pad, ((PyObject *)__pyx_kp_s_48)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 175; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyNumber_Add(__pyx_v_pad, ((PyObject *)__pyx_kp_s_48)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 175; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_4 = PyTuple_New(5); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 175; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_4 = PyTuple_New(5); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 175; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_4);
   PyTuple_SET_ITEM(__pyx_t_4, 0, __pyx_t_8);
   __Pyx_GIVEREF(__pyx_t_8);
@@ -33087,7 +33098,7 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_12q3sort(struct __pyx_obj_3_sa_Suff
   __pyx_t_3 = 0;
   __pyx_t_6 = 0;
   __pyx_t_2 = 0;
-  __pyx_t_2 = PyObject_Call(__pyx_t_7, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 175; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyObject_Call(__pyx_t_7, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 175; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
   __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
@@ -33118,7 +33129,7 @@ static PyObject *__pyx_pw_3_sa_11SuffixArray_15write_text(PyObject *__pyx_v_self
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("write_text (wrapper)", 0);
   assert(__pyx_arg_filename); {
-    __pyx_v_filename = PyBytes_AsString(__pyx_arg_filename); if (unlikely((!__pyx_v_filename) && PyErr_Occurred())) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 178; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+    __pyx_v_filename = PyBytes_AsString(__pyx_arg_filename); if (unlikely((!__pyx_v_filename) && PyErr_Occurred())) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 178; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L3_error:;
@@ -33157,16 +33168,16 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_14write_text(struct __pyx_obj_3_sa_
  * 
  *     def read_binary(self, char* filename):
  */
-  __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_v_self->darray), __pyx_n_s__write_text); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 179; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_v_self->darray), __pyx_n_s__write_text); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 179; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = PyBytes_FromString(__pyx_v_filename); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 179; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyBytes_FromString(__pyx_v_filename); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 179; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_2));
-  __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 179; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 179; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   PyTuple_SET_ITEM(__pyx_t_3, 0, ((PyObject *)__pyx_t_2));
   __Pyx_GIVEREF(((PyObject *)__pyx_t_2));
   __pyx_t_2 = 0;
-  __pyx_t_2 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 179; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 179; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
@@ -33194,7 +33205,7 @@ static PyObject *__pyx_pw_3_sa_11SuffixArray_17read_binary(PyObject *__pyx_v_sel
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("read_binary (wrapper)", 0);
   assert(__pyx_arg_filename); {
-    __pyx_v_filename = PyBytes_AsString(__pyx_arg_filename); if (unlikely((!__pyx_v_filename) && PyErr_Occurred())) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 181; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+    __pyx_v_filename = PyBytes_AsString(__pyx_arg_filename); if (unlikely((!__pyx_v_filename) && PyErr_Occurred())) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 181; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L3_error:;
@@ -33280,7 +33291,7 @@ static PyObject *__pyx_pw_3_sa_11SuffixArray_19write_binary(PyObject *__pyx_v_se
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("write_binary (wrapper)", 0);
   assert(__pyx_arg_filename); {
-    __pyx_v_filename = PyBytes_AsString(__pyx_arg_filename); if (unlikely((!__pyx_v_filename) && PyErr_Occurred())) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 189; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+    __pyx_v_filename = PyBytes_AsString(__pyx_arg_filename); if (unlikely((!__pyx_v_filename) && PyErr_Occurred())) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 189; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L3_error:;
@@ -33366,7 +33377,7 @@ static PyObject *__pyx_pw_3_sa_11SuffixArray_21write_enhanced(PyObject *__pyx_v_
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("write_enhanced (wrapper)", 0);
   assert(__pyx_arg_filename); {
-    __pyx_v_filename = PyBytes_AsString(__pyx_arg_filename); if (unlikely((!__pyx_v_filename) && PyErr_Occurred())) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 197; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+    __pyx_v_filename = PyBytes_AsString(__pyx_arg_filename); if (unlikely((!__pyx_v_filename) && PyErr_Occurred())) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 197; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L3_error:;
@@ -33419,9 +33430,9 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_20write_enhanced(struct __pyx_obj_3
  *             for a_i in self.sa:
  */
   /*with:*/ {
-    __pyx_t_1 = PyBytes_FromString(__pyx_v_filename); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 198; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyBytes_FromString(__pyx_v_filename); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 198; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(((PyObject *)__pyx_t_1));
-    __pyx_t_2 = PyTuple_New(2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 198; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyTuple_New(2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 198; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_t_1));
     __Pyx_GIVEREF(((PyObject *)__pyx_t_1));
@@ -33429,14 +33440,14 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_20write_enhanced(struct __pyx_obj_3
     PyTuple_SET_ITEM(__pyx_t_2, 1, ((PyObject *)__pyx_n_s__w));
     __Pyx_GIVEREF(((PyObject *)__pyx_n_s__w));
     __pyx_t_1 = 0;
-    __pyx_t_1 = PyObject_Call(__pyx_builtin_open, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 198; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyObject_Call(__pyx_builtin_open, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 198; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
-    __pyx_t_3 = PyObject_GetAttr(__pyx_t_1, __pyx_n_s____exit__); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 198; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_GetAttr(__pyx_t_1, __pyx_n_s____exit__); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 198; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_2 = PyObject_GetAttr(__pyx_t_1, __pyx_n_s____enter__); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 198; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+    __pyx_t_2 = PyObject_GetAttr(__pyx_t_1, __pyx_n_s____enter__); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 198; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_4 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 198; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+    __pyx_t_4 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 198; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
@@ -33458,14 +33469,14 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_20write_enhanced(struct __pyx_obj_3
  *             for a_i in self.sa:
  *                 f.write("%d " % a_i)
  */
-          __pyx_t_4 = PyObject_GetAttr(((PyObject *)__pyx_v_self->darray), __pyx_n_s_27); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 199; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
+          __pyx_t_4 = PyObject_GetAttr(((PyObject *)__pyx_v_self->darray), __pyx_n_s_27); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 199; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
           __Pyx_GOTREF(__pyx_t_4);
-          __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 199; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
+          __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 199; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
           __Pyx_GOTREF(__pyx_t_1);
           __Pyx_INCREF(__pyx_v_f);
           PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_v_f);
           __Pyx_GIVEREF(__pyx_v_f);
-          __pyx_t_2 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 199; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
+          __pyx_t_2 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 199; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
           __Pyx_GOTREF(__pyx_t_2);
           __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
           __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
@@ -33482,7 +33493,7 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_20write_enhanced(struct __pyx_obj_3
             __pyx_t_2 = ((PyObject *)__pyx_v_self->sa); __Pyx_INCREF(__pyx_t_2); __pyx_t_8 = 0;
             __pyx_t_9 = NULL;
           } else {
-            __pyx_t_8 = -1; __pyx_t_2 = PyObject_GetIter(((PyObject *)__pyx_v_self->sa)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 200; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
+            __pyx_t_8 = -1; __pyx_t_2 = PyObject_GetIter(((PyObject *)__pyx_v_self->sa)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 200; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
             __Pyx_GOTREF(__pyx_t_2);
             __pyx_t_9 = Py_TYPE(__pyx_t_2)->tp_iternext;
           }
@@ -33492,21 +33503,21 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_20write_enhanced(struct __pyx_obj_3
               #if CYTHON_COMPILING_IN_CPYTHON
               __pyx_t_1 = PyList_GET_ITEM(__pyx_t_2, __pyx_t_8); __Pyx_INCREF(__pyx_t_1); __pyx_t_8++;
               #else
-              __pyx_t_1 = PySequence_ITEM(__pyx_t_2, __pyx_t_8); __pyx_t_8++; if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 200; __pyx_clineno = __LINE__; goto __pyx_L7_error;};
+              __pyx_t_1 = PySequence_ITEM(__pyx_t_2, __pyx_t_8); __pyx_t_8++; if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 200; __pyx_clineno = __LINE__; goto __pyx_L7_error;};
               #endif
             } else if (!__pyx_t_9 && PyTuple_CheckExact(__pyx_t_2)) {
               if (__pyx_t_8 >= PyTuple_GET_SIZE(__pyx_t_2)) break;
               #if CYTHON_COMPILING_IN_CPYTHON
               __pyx_t_1 = PyTuple_GET_ITEM(__pyx_t_2, __pyx_t_8); __Pyx_INCREF(__pyx_t_1); __pyx_t_8++;
               #else
-              __pyx_t_1 = PySequence_ITEM(__pyx_t_2, __pyx_t_8); __pyx_t_8++; if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 200; __pyx_clineno = __LINE__; goto __pyx_L7_error;};
+              __pyx_t_1 = PySequence_ITEM(__pyx_t_2, __pyx_t_8); __pyx_t_8++; if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 200; __pyx_clineno = __LINE__; goto __pyx_L7_error;};
               #endif
             } else {
               __pyx_t_1 = __pyx_t_9(__pyx_t_2);
               if (unlikely(!__pyx_t_1)) {
                 if (PyErr_Occurred()) {
                   if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-                  else {__pyx_filename = __pyx_f[13]; __pyx_lineno = 200; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
+                  else {__pyx_filename = __pyx_f[12]; __pyx_lineno = 200; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
                 }
                 break;
               }
@@ -33523,16 +33534,16 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_20write_enhanced(struct __pyx_obj_3
  *             f.write("\n")
  *             for w_i in self.ha:
  */
-            __pyx_t_1 = PyObject_GetAttr(__pyx_v_f, __pyx_n_s__write); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 201; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
+            __pyx_t_1 = PyObject_GetAttr(__pyx_v_f, __pyx_n_s__write); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 201; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
             __Pyx_GOTREF(__pyx_t_1);
-            __pyx_t_4 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_21), __pyx_v_a_i); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 201; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
+            __pyx_t_4 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_21), __pyx_v_a_i); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 201; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
             __Pyx_GOTREF(((PyObject *)__pyx_t_4));
-            __pyx_t_10 = PyTuple_New(1); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 201; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
+            __pyx_t_10 = PyTuple_New(1); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 201; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
             __Pyx_GOTREF(__pyx_t_10);
             PyTuple_SET_ITEM(__pyx_t_10, 0, ((PyObject *)__pyx_t_4));
             __Pyx_GIVEREF(((PyObject *)__pyx_t_4));
             __pyx_t_4 = 0;
-            __pyx_t_4 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_10), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 201; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
+            __pyx_t_4 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_10), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 201; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
             __Pyx_GOTREF(__pyx_t_4);
             __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
             __Pyx_DECREF(((PyObject *)__pyx_t_10)); __pyx_t_10 = 0;
@@ -33547,9 +33558,9 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_20write_enhanced(struct __pyx_obj_3
  *             for w_i in self.ha:
  *                 f.write("%d " % w_i)
  */
-          __pyx_t_2 = PyObject_GetAttr(__pyx_v_f, __pyx_n_s__write); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 202; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
+          __pyx_t_2 = PyObject_GetAttr(__pyx_v_f, __pyx_n_s__write); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 202; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
           __Pyx_GOTREF(__pyx_t_2);
-          __pyx_t_4 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_k_tuple_96), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 202; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
+          __pyx_t_4 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_k_tuple_96), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 202; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
           __Pyx_GOTREF(__pyx_t_4);
           __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
           __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
@@ -33565,7 +33576,7 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_20write_enhanced(struct __pyx_obj_3
             __pyx_t_4 = ((PyObject *)__pyx_v_self->ha); __Pyx_INCREF(__pyx_t_4); __pyx_t_8 = 0;
             __pyx_t_9 = NULL;
           } else {
-            __pyx_t_8 = -1; __pyx_t_4 = PyObject_GetIter(((PyObject *)__pyx_v_self->ha)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 203; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
+            __pyx_t_8 = -1; __pyx_t_4 = PyObject_GetIter(((PyObject *)__pyx_v_self->ha)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 203; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
             __Pyx_GOTREF(__pyx_t_4);
             __pyx_t_9 = Py_TYPE(__pyx_t_4)->tp_iternext;
           }
@@ -33575,21 +33586,21 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_20write_enhanced(struct __pyx_obj_3
               #if CYTHON_COMPILING_IN_CPYTHON
               __pyx_t_2 = PyList_GET_ITEM(__pyx_t_4, __pyx_t_8); __Pyx_INCREF(__pyx_t_2); __pyx_t_8++;
               #else
-              __pyx_t_2 = PySequence_ITEM(__pyx_t_4, __pyx_t_8); __pyx_t_8++; if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 203; __pyx_clineno = __LINE__; goto __pyx_L7_error;};
+              __pyx_t_2 = PySequence_ITEM(__pyx_t_4, __pyx_t_8); __pyx_t_8++; if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 203; __pyx_clineno = __LINE__; goto __pyx_L7_error;};
               #endif
             } else if (!__pyx_t_9 && PyTuple_CheckExact(__pyx_t_4)) {
               if (__pyx_t_8 >= PyTuple_GET_SIZE(__pyx_t_4)) break;
               #if CYTHON_COMPILING_IN_CPYTHON
               __pyx_t_2 = PyTuple_GET_ITEM(__pyx_t_4, __pyx_t_8); __Pyx_INCREF(__pyx_t_2); __pyx_t_8++;
               #else
-              __pyx_t_2 = PySequence_ITEM(__pyx_t_4, __pyx_t_8); __pyx_t_8++; if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 203; __pyx_clineno = __LINE__; goto __pyx_L7_error;};
+              __pyx_t_2 = PySequence_ITEM(__pyx_t_4, __pyx_t_8); __pyx_t_8++; if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 203; __pyx_clineno = __LINE__; goto __pyx_L7_error;};
               #endif
             } else {
               __pyx_t_2 = __pyx_t_9(__pyx_t_4);
               if (unlikely(!__pyx_t_2)) {
                 if (PyErr_Occurred()) {
                   if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-                  else {__pyx_filename = __pyx_f[13]; __pyx_lineno = 203; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
+                  else {__pyx_filename = __pyx_f[12]; __pyx_lineno = 203; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
                 }
                 break;
               }
@@ -33606,16 +33617,16 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_20write_enhanced(struct __pyx_obj_3
  *             f.write("\n")
  * 
  */
-            __pyx_t_2 = PyObject_GetAttr(__pyx_v_f, __pyx_n_s__write); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 204; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
+            __pyx_t_2 = PyObject_GetAttr(__pyx_v_f, __pyx_n_s__write); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 204; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
             __Pyx_GOTREF(__pyx_t_2);
-            __pyx_t_10 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_21), __pyx_v_w_i); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 204; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
+            __pyx_t_10 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_21), __pyx_v_w_i); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 204; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
             __Pyx_GOTREF(((PyObject *)__pyx_t_10));
-            __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 204; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
+            __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 204; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
             __Pyx_GOTREF(__pyx_t_1);
             PyTuple_SET_ITEM(__pyx_t_1, 0, ((PyObject *)__pyx_t_10));
             __Pyx_GIVEREF(((PyObject *)__pyx_t_10));
             __pyx_t_10 = 0;
-            __pyx_t_10 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 204; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
+            __pyx_t_10 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 204; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
             __Pyx_GOTREF(__pyx_t_10);
             __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
             __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
@@ -33630,9 +33641,9 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_20write_enhanced(struct __pyx_obj_3
  * 
  *     cdef int __search_high(self, int word_id, int offset, int low, int high):
  */
-          __pyx_t_4 = PyObject_GetAttr(__pyx_v_f, __pyx_n_s__write); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 205; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
+          __pyx_t_4 = PyObject_GetAttr(__pyx_v_f, __pyx_n_s__write); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 205; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
           __Pyx_GOTREF(__pyx_t_4);
-          __pyx_t_10 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_k_tuple_97), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 205; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
+          __pyx_t_10 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_k_tuple_97), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 205; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
           __Pyx_GOTREF(__pyx_t_10);
           __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
           __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
@@ -33656,11 +33667,11 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_20write_enhanced(struct __pyx_obj_3
  */
         /*except:*/ {
           __Pyx_AddTraceback("_sa.SuffixArray.write_enhanced", __pyx_clineno, __pyx_lineno, __pyx_filename);
-          if (__Pyx_GetException(&__pyx_t_10, &__pyx_t_4, &__pyx_t_1) < 0) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 198; __pyx_clineno = __LINE__; goto __pyx_L9_except_error;}
+          if (__Pyx_GetException(&__pyx_t_10, &__pyx_t_4, &__pyx_t_1) < 0) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 198; __pyx_clineno = __LINE__; goto __pyx_L9_except_error;}
           __Pyx_GOTREF(__pyx_t_10);
           __Pyx_GOTREF(__pyx_t_4);
           __Pyx_GOTREF(__pyx_t_1);
-          __pyx_t_2 = PyTuple_New(3); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 198; __pyx_clineno = __LINE__; goto __pyx_L9_except_error;}
+          __pyx_t_2 = PyTuple_New(3); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 198; __pyx_clineno = __LINE__; goto __pyx_L9_except_error;}
           __Pyx_GOTREF(__pyx_t_2);
           __Pyx_INCREF(__pyx_t_10);
           PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_t_10);
@@ -33673,11 +33684,11 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_20write_enhanced(struct __pyx_obj_3
           __Pyx_GIVEREF(__pyx_t_1);
           __pyx_t_12 = PyObject_Call(__pyx_t_3, __pyx_t_2, NULL);
           __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-          if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 198; __pyx_clineno = __LINE__; goto __pyx_L9_except_error;}
+          if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 198; __pyx_clineno = __LINE__; goto __pyx_L9_except_error;}
           __Pyx_GOTREF(__pyx_t_12);
           __pyx_t_11 = __Pyx_PyObject_IsTrue(__pyx_t_12);
           __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
-          if (unlikely(__pyx_t_11 < 0)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 198; __pyx_clineno = __LINE__; goto __pyx_L9_except_error;}
+          if (unlikely(__pyx_t_11 < 0)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 198; __pyx_clineno = __LINE__; goto __pyx_L9_except_error;}
           __pyx_t_13 = (!__pyx_t_11);
           if (__pyx_t_13) {
             __Pyx_GIVEREF(__pyx_t_10);
@@ -33685,7 +33696,7 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_20write_enhanced(struct __pyx_obj_3
             __Pyx_GIVEREF(__pyx_t_1);
             __Pyx_ErrRestore(__pyx_t_10, __pyx_t_4, __pyx_t_1);
             __pyx_t_10 = 0; __pyx_t_4 = 0; __pyx_t_1 = 0; 
-            {__pyx_filename = __pyx_f[13]; __pyx_lineno = 198; __pyx_clineno = __LINE__; goto __pyx_L9_except_error;}
+            {__pyx_filename = __pyx_f[12]; __pyx_lineno = 198; __pyx_clineno = __LINE__; goto __pyx_L9_except_error;}
             goto __pyx_L22;
           }
           __pyx_L22:;
@@ -33713,11 +33724,11 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_20write_enhanced(struct __pyx_obj_3
       if (__pyx_t_3) {
         __pyx_t_7 = PyObject_Call(__pyx_t_3, __pyx_k_tuple_98, NULL);
         __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-        if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 198; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 198; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_7);
         __pyx_t_13 = __Pyx_PyObject_IsTrue(__pyx_t_7);
         __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-        if (unlikely(__pyx_t_13 < 0)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 198; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        if (unlikely(__pyx_t_13 < 0)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 198; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       }
     }
     goto __pyx_L23;
@@ -33948,7 +33959,7 @@ static PyObject *__pyx_f_3_sa_11SuffixArray___get_range(struct __pyx_obj_3_sa_Su
  * 
  */
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = PyInt_FromLong(((struct __pyx_vtabstruct_3_sa_SuffixArray *)__pyx_v_self->__pyx_vtab)->__pyx___search_low(__pyx_v_self, __pyx_v_word_id, __pyx_v_offset, __pyx_v_low, __pyx_v_midpoint)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 230; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyInt_FromLong(((struct __pyx_vtabstruct_3_sa_SuffixArray *)__pyx_v_self->__pyx_vtab)->__pyx___search_low(__pyx_v_self, __pyx_v_word_id, __pyx_v_offset, __pyx_v_low, __pyx_v_midpoint)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 230; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
 
   /* "/Users/vchahun/Sandbox/cdec/python/src/sa/suffix_array.pxi":231
@@ -33958,9 +33969,9 @@ static PyObject *__pyx_f_3_sa_11SuffixArray___get_range(struct __pyx_obj_3_sa_Su
  * 
  *     cdef __lookup_helper(self, int word_id, int offset, int low, int high):
  */
-  __pyx_t_2 = PyInt_FromLong(((struct __pyx_vtabstruct_3_sa_SuffixArray *)__pyx_v_self->__pyx_vtab)->__pyx___search_high(__pyx_v_self, __pyx_v_word_id, __pyx_v_offset, __pyx_v_midpoint, __pyx_v_high)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 231; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyInt_FromLong(((struct __pyx_vtabstruct_3_sa_SuffixArray *)__pyx_v_self->__pyx_vtab)->__pyx___search_high(__pyx_v_self, __pyx_v_word_id, __pyx_v_offset, __pyx_v_midpoint, __pyx_v_high)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 231; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 230; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 230; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_1);
   __Pyx_GIVEREF(__pyx_t_1);
@@ -34025,11 +34036,11 @@ static PyObject *__pyx_f_3_sa_11SuffixArray___lookup_helper(struct __pyx_obj_3_s
  *             return None
  */
     __Pyx_XDECREF(__pyx_r);
-    __pyx_t_2 = PyInt_FromLong((__pyx_v_self->ha->arr[__pyx_v_word_id])); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 237; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyInt_FromLong((__pyx_v_self->ha->arr[__pyx_v_word_id])); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 237; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_3 = PyInt_FromLong((__pyx_v_self->ha->arr[(__pyx_v_word_id + 1)])); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 237; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyInt_FromLong((__pyx_v_self->ha->arr[(__pyx_v_word_id + 1)])); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 237; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_4 = PyTuple_New(2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 237; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyTuple_New(2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 237; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     PyTuple_SET_ITEM(__pyx_t_4, 0, __pyx_t_2);
     __Pyx_GIVEREF(__pyx_t_2);
@@ -34096,7 +34107,7 @@ static PyObject *__pyx_f_3_sa_11SuffixArray___lookup_helper(struct __pyx_obj_3_s
  *             return self.__lookup_helper(word_id, offset, low, midpoint)
  */
     __Pyx_XDECREF(__pyx_r);
-    __pyx_t_4 = ((struct __pyx_vtabstruct_3_sa_SuffixArray *)__pyx_v_self->__pyx_vtab)->__pyx___get_range(__pyx_v_self, __pyx_v_word_id, __pyx_v_offset, __pyx_v_low, __pyx_v_high, __pyx_v_midpoint); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 243; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = ((struct __pyx_vtabstruct_3_sa_SuffixArray *)__pyx_v_self->__pyx_vtab)->__pyx___get_range(__pyx_v_self, __pyx_v_word_id, __pyx_v_offset, __pyx_v_low, __pyx_v_high, __pyx_v_midpoint); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 243; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __pyx_r = __pyx_t_4;
     __pyx_t_4 = 0;
@@ -34123,7 +34134,7 @@ static PyObject *__pyx_f_3_sa_11SuffixArray___lookup_helper(struct __pyx_obj_3_s
  *             return self.__lookup_helper(word_id, offset, midpoint+1, high)
  */
     __Pyx_XDECREF(__pyx_r);
-    __pyx_t_4 = ((struct __pyx_vtabstruct_3_sa_SuffixArray *)__pyx_v_self->__pyx_vtab)->__pyx___lookup_helper(__pyx_v_self, __pyx_v_word_id, __pyx_v_offset, __pyx_v_low, __pyx_v_midpoint); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 245; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = ((struct __pyx_vtabstruct_3_sa_SuffixArray *)__pyx_v_self->__pyx_vtab)->__pyx___lookup_helper(__pyx_v_self, __pyx_v_word_id, __pyx_v_offset, __pyx_v_low, __pyx_v_midpoint); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 245; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __pyx_r = __pyx_t_4;
     __pyx_t_4 = 0;
@@ -34140,7 +34151,7 @@ static PyObject *__pyx_f_3_sa_11SuffixArray___lookup_helper(struct __pyx_obj_3_s
  *     def lookup(self, word, int offset, int low, int high):
  */
     __Pyx_XDECREF(__pyx_r);
-    __pyx_t_4 = ((struct __pyx_vtabstruct_3_sa_SuffixArray *)__pyx_v_self->__pyx_vtab)->__pyx___lookup_helper(__pyx_v_self, __pyx_v_word_id, __pyx_v_offset, (__pyx_v_midpoint + 1), __pyx_v_high); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 247; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = ((struct __pyx_vtabstruct_3_sa_SuffixArray *)__pyx_v_self->__pyx_vtab)->__pyx___lookup_helper(__pyx_v_self, __pyx_v_word_id, __pyx_v_offset, (__pyx_v_midpoint + 1), __pyx_v_high); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 247; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __pyx_r = __pyx_t_4;
     __pyx_t_4 = 0;
@@ -34194,21 +34205,21 @@ static PyObject *__pyx_pw_3_sa_11SuffixArray_23lookup(PyObject *__pyx_v_self, Py
         case  1:
         if (likely((values[1] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__offset)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("lookup", 1, 4, 4, 1); {__pyx_filename = __pyx_f[13]; __pyx_lineno = 249; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("lookup", 1, 4, 4, 1); {__pyx_filename = __pyx_f[12]; __pyx_lineno = 249; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
         case  2:
         if (likely((values[2] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__low)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("lookup", 1, 4, 4, 2); {__pyx_filename = __pyx_f[13]; __pyx_lineno = 249; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("lookup", 1, 4, 4, 2); {__pyx_filename = __pyx_f[12]; __pyx_lineno = 249; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
         case  3:
         if (likely((values[3] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__high)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("lookup", 1, 4, 4, 3); {__pyx_filename = __pyx_f[13]; __pyx_lineno = 249; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("lookup", 1, 4, 4, 3); {__pyx_filename = __pyx_f[12]; __pyx_lineno = 249; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "lookup") < 0)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 249; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "lookup") < 0)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 249; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else if (PyTuple_GET_SIZE(__pyx_args) != 4) {
       goto __pyx_L5_argtuple_error;
@@ -34219,13 +34230,13 @@ static PyObject *__pyx_pw_3_sa_11SuffixArray_23lookup(PyObject *__pyx_v_self, Py
       values[3] = PyTuple_GET_ITEM(__pyx_args, 3);
     }
     __pyx_v_word = values[0];
-    __pyx_v_offset = __Pyx_PyInt_AsInt(values[1]); if (unlikely((__pyx_v_offset == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 249; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
-    __pyx_v_low = __Pyx_PyInt_AsInt(values[2]); if (unlikely((__pyx_v_low == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 249; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
-    __pyx_v_high = __Pyx_PyInt_AsInt(values[3]); if (unlikely((__pyx_v_high == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 249; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+    __pyx_v_offset = __Pyx_PyInt_AsInt(values[1]); if (unlikely((__pyx_v_offset == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 249; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+    __pyx_v_low = __Pyx_PyInt_AsInt(values[2]); if (unlikely((__pyx_v_low == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 249; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+    __pyx_v_high = __Pyx_PyInt_AsInt(values[3]); if (unlikely((__pyx_v_high == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 249; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("lookup", 1, 4, 4, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[13]; __pyx_lineno = 249; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+  __Pyx_RaiseArgtupleInvalid("lookup", 1, 4, 4, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[12]; __pyx_lineno = 249; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_AddTraceback("_sa.SuffixArray.lookup", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -34298,7 +34309,7 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_22lookup(struct __pyx_obj_3_sa_Suff
  */
     __pyx_t_2 = ((PyObject *)__pyx_v_self->sa);
     __Pyx_INCREF(__pyx_t_2);
-    __pyx_t_3 = PyObject_Length(__pyx_t_2); if (unlikely(__pyx_t_3 == -1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 254; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_Length(__pyx_t_2); if (unlikely(__pyx_t_3 == -1)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 254; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     __pyx_v_high = __pyx_t_3;
     goto __pyx_L4;
@@ -34312,7 +34323,7 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_22lookup(struct __pyx_obj_3_sa_Suff
  *             word_id = self.darray.word2id[word]
  *             return self.__lookup_helper(word_id, offset, low, high)
  */
-  __pyx_t_1 = ((PySequence_Contains(__pyx_v_self->darray->word2id, __pyx_v_word))); if (unlikely(__pyx_t_1 < 0)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 255; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = ((PySequence_Contains(__pyx_v_self->darray->word2id, __pyx_v_word))); if (unlikely(__pyx_t_1 < 0)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 255; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   if (__pyx_t_1) {
 
     /* "/Users/vchahun/Sandbox/cdec/python/src/sa/suffix_array.pxi":256
@@ -34322,7 +34333,7 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_22lookup(struct __pyx_obj_3_sa_Suff
  *             return self.__lookup_helper(word_id, offset, low, high)
  *         else:
  */
-    __pyx_t_2 = PyObject_GetItem(__pyx_v_self->darray->word2id, __pyx_v_word); if (!__pyx_t_2) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 256; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyObject_GetItem(__pyx_v_self->darray->word2id, __pyx_v_word); if (!__pyx_t_2) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 256; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __pyx_v_word_id = __pyx_t_2;
     __pyx_t_2 = 0;
@@ -34335,8 +34346,8 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_22lookup(struct __pyx_obj_3_sa_Suff
  *             return None
  */
     __Pyx_XDECREF(__pyx_r);
-    __pyx_t_4 = __Pyx_PyInt_AsInt(__pyx_v_word_id); if (unlikely((__pyx_t_4 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 257; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __pyx_t_2 = ((struct __pyx_vtabstruct_3_sa_SuffixArray *)__pyx_v_self->__pyx_vtab)->__pyx___lookup_helper(__pyx_v_self, __pyx_t_4, __pyx_v_offset, __pyx_v_low, __pyx_v_high); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 257; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = __Pyx_PyInt_AsInt(__pyx_v_word_id); if (unlikely((__pyx_t_4 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 257; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = ((struct __pyx_vtabstruct_3_sa_SuffixArray *)__pyx_v_self->__pyx_vtab)->__pyx___lookup_helper(__pyx_v_self, __pyx_t_4, __pyx_v_offset, __pyx_v_low, __pyx_v_high); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 257; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __pyx_r = __pyx_t_2;
     __pyx_t_2 = 0;
@@ -34371,6 +34382,1864 @@ static PyObject *__pyx_pf_3_sa_11SuffixArray_22lookup(struct __pyx_obj_3_sa_Suff
 }
 
 /* Python wrapper */
+static int __pyx_pw_3_sa_13FeatureVector_1__cinit__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static int __pyx_pw_3_sa_13FeatureVector_1__cinit__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+  int __pyx_r;
+  __Pyx_RefNannyDeclarations
+  __Pyx_RefNannySetupContext("__cinit__ (wrapper)", 0);
+  if (unlikely(PyTuple_GET_SIZE(__pyx_args) > 0)) {
+    __Pyx_RaiseArgtupleInvalid("__cinit__", 1, 0, 0, PyTuple_GET_SIZE(__pyx_args)); return -1;}
+  if (unlikely(__pyx_kwds) && unlikely(PyDict_Size(__pyx_kwds) > 0) && unlikely(!__Pyx_CheckKeywordStrings(__pyx_kwds, "__cinit__", 0))) return -1;
+  __pyx_r = __pyx_pf_3_sa_13FeatureVector___cinit__(((struct __pyx_obj_3_sa_FeatureVector *)__pyx_v_self));
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":7
+ * 
+ * cdef class FeatureVector:
+ *     def __cinit__(self):             # <<<<<<<<<<<<<<
+ *         self.names = IntList(INITIAL_CAPACITY, INCREMENT)
+ *         self.values = FloatList(INITIAL_CAPACITY, INCREMENT)
+ */
+
+static int __pyx_pf_3_sa_13FeatureVector___cinit__(struct __pyx_obj_3_sa_FeatureVector *__pyx_v_self) {
+  int __pyx_r;
+  __Pyx_RefNannyDeclarations
+  PyObject *__pyx_t_1 = NULL;
+  PyObject *__pyx_t_2 = NULL;
+  PyObject *__pyx_t_3 = NULL;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
+  __Pyx_RefNannySetupContext("__cinit__", 0);
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":8
+ * cdef class FeatureVector:
+ *     def __cinit__(self):
+ *         self.names = IntList(INITIAL_CAPACITY, INCREMENT)             # <<<<<<<<<<<<<<
+ *         self.values = FloatList(INITIAL_CAPACITY, INCREMENT)
+ * 
+ */
+  __pyx_t_1 = __Pyx_GetName(__pyx_m, __pyx_n_s__INITIAL_CAPACITY); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 8; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_1);
+  __pyx_t_2 = __Pyx_GetName(__pyx_m, __pyx_n_s__INCREMENT); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 8; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 8; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_1);
+  __Pyx_GIVEREF(__pyx_t_1);
+  PyTuple_SET_ITEM(__pyx_t_3, 1, __pyx_t_2);
+  __Pyx_GIVEREF(__pyx_t_2);
+  __pyx_t_1 = 0;
+  __pyx_t_2 = 0;
+  __pyx_t_2 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 8; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
+  __Pyx_GIVEREF(__pyx_t_2);
+  __Pyx_GOTREF(__pyx_v_self->names);
+  __Pyx_DECREF(((PyObject *)__pyx_v_self->names));
+  __pyx_v_self->names = ((struct __pyx_obj_3_sa_IntList *)__pyx_t_2);
+  __pyx_t_2 = 0;
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":9
+ *     def __cinit__(self):
+ *         self.names = IntList(INITIAL_CAPACITY, INCREMENT)
+ *         self.values = FloatList(INITIAL_CAPACITY, INCREMENT)             # <<<<<<<<<<<<<<
+ * 
+ *     def set(self, unsigned name, float value):
+ */
+  __pyx_t_2 = __Pyx_GetName(__pyx_m, __pyx_n_s__INITIAL_CAPACITY); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 9; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __pyx_t_3 = __Pyx_GetName(__pyx_m, __pyx_n_s__INCREMENT); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 9; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __pyx_t_1 = PyTuple_New(2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 9; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_1);
+  PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_t_2);
+  __Pyx_GIVEREF(__pyx_t_2);
+  PyTuple_SET_ITEM(__pyx_t_1, 1, __pyx_t_3);
+  __Pyx_GIVEREF(__pyx_t_3);
+  __pyx_t_2 = 0;
+  __pyx_t_3 = 0;
+  __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_FloatList)), ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 9; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+  __Pyx_GIVEREF(__pyx_t_3);
+  __Pyx_GOTREF(__pyx_v_self->values);
+  __Pyx_DECREF(((PyObject *)__pyx_v_self->values));
+  __pyx_v_self->values = ((struct __pyx_obj_3_sa_FloatList *)__pyx_t_3);
+  __pyx_t_3 = 0;
+
+  __pyx_r = 0;
+  goto __pyx_L0;
+  __pyx_L1_error:;
+  __Pyx_XDECREF(__pyx_t_1);
+  __Pyx_XDECREF(__pyx_t_2);
+  __Pyx_XDECREF(__pyx_t_3);
+  __Pyx_AddTraceback("_sa.FeatureVector.__cinit__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __pyx_r = -1;
+  __pyx_L0:;
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+
+/* Python wrapper */
+static PyObject *__pyx_pw_3_sa_13FeatureVector_3set(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static PyObject *__pyx_pw_3_sa_13FeatureVector_3set(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+  unsigned int __pyx_v_name;
+  float __pyx_v_value;
+  PyObject *__pyx_r = 0;
+  __Pyx_RefNannyDeclarations
+  __Pyx_RefNannySetupContext("set (wrapper)", 0);
+  {
+    static PyObject **__pyx_pyargnames[] = {&__pyx_n_s__name,&__pyx_n_s__value,0};
+    PyObject* values[2] = {0,0};
+    if (unlikely(__pyx_kwds)) {
+      Py_ssize_t kw_args;
+      const Py_ssize_t pos_args = PyTuple_GET_SIZE(__pyx_args);
+      switch (pos_args) {
+        case  2: values[1] = PyTuple_GET_ITEM(__pyx_args, 1);
+        case  1: values[0] = PyTuple_GET_ITEM(__pyx_args, 0);
+        case  0: break;
+        default: goto __pyx_L5_argtuple_error;
+      }
+      kw_args = PyDict_Size(__pyx_kwds);
+      switch (pos_args) {
+        case  0:
+        if (likely((values[0] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__name)) != 0)) kw_args--;
+        else goto __pyx_L5_argtuple_error;
+        case  1:
+        if (likely((values[1] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__value)) != 0)) kw_args--;
+        else {
+          __Pyx_RaiseArgtupleInvalid("set", 1, 2, 2, 1); {__pyx_filename = __pyx_f[13]; __pyx_lineno = 11; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+        }
+      }
+      if (unlikely(kw_args > 0)) {
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "set") < 0)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 11; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+      }
+    } else if (PyTuple_GET_SIZE(__pyx_args) != 2) {
+      goto __pyx_L5_argtuple_error;
+    } else {
+      values[0] = PyTuple_GET_ITEM(__pyx_args, 0);
+      values[1] = PyTuple_GET_ITEM(__pyx_args, 1);
+    }
+    __pyx_v_name = __Pyx_PyInt_AsUnsignedInt(values[0]); if (unlikely((__pyx_v_name == (unsigned int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 11; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+    __pyx_v_value = __pyx_PyFloat_AsFloat(values[1]); if (unlikely((__pyx_v_value == (float)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 11; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+  }
+  goto __pyx_L4_argument_unpacking_done;
+  __pyx_L5_argtuple_error:;
+  __Pyx_RaiseArgtupleInvalid("set", 1, 2, 2, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[13]; __pyx_lineno = 11; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+  __pyx_L3_error:;
+  __Pyx_AddTraceback("_sa.FeatureVector.set", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_RefNannyFinishContext();
+  return NULL;
+  __pyx_L4_argument_unpacking_done:;
+  __pyx_r = __pyx_pf_3_sa_13FeatureVector_2set(((struct __pyx_obj_3_sa_FeatureVector *)__pyx_v_self), __pyx_v_name, __pyx_v_value);
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":11
+ *         self.values = FloatList(INITIAL_CAPACITY, INCREMENT)
+ * 
+ *     def set(self, unsigned name, float value):             # <<<<<<<<<<<<<<
+ *         self.names.append(name)
+ *         self.values.append(value)
+ */
+
+static PyObject *__pyx_pf_3_sa_13FeatureVector_2set(struct __pyx_obj_3_sa_FeatureVector *__pyx_v_self, unsigned int __pyx_v_name, float __pyx_v_value) {
+  PyObject *__pyx_r = NULL;
+  __Pyx_RefNannyDeclarations
+  PyObject *__pyx_t_1 = NULL;
+  PyObject *__pyx_t_2 = NULL;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
+  __Pyx_RefNannySetupContext("set", 0);
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":12
+ * 
+ *     def set(self, unsigned name, float value):
+ *         self.names.append(name)             # <<<<<<<<<<<<<<
+ *         self.values.append(value)
+ * 
+ */
+  __pyx_t_1 = PyLong_FromUnsignedLong(__pyx_v_name); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 12; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_1);
+  __pyx_t_2 = __Pyx_PyObject_Append(((PyObject *)__pyx_v_self->names), __pyx_t_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 12; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":13
+ *     def set(self, unsigned name, float value):
+ *         self.names.append(name)
+ *         self.values.append(value)             # <<<<<<<<<<<<<<
+ * 
+ *     def __iter__(self):
+ */
+  __pyx_t_2 = PyFloat_FromDouble(__pyx_v_value); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 13; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __pyx_t_1 = __Pyx_PyObject_Append(((PyObject *)__pyx_v_self->values), __pyx_t_2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 13; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_1);
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+
+  __pyx_r = Py_None; __Pyx_INCREF(Py_None);
+  goto __pyx_L0;
+  __pyx_L1_error:;
+  __Pyx_XDECREF(__pyx_t_1);
+  __Pyx_XDECREF(__pyx_t_2);
+  __Pyx_AddTraceback("_sa.FeatureVector.set", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __pyx_r = NULL;
+  __pyx_L0:;
+  __Pyx_XGIVEREF(__pyx_r);
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+static PyObject *__pyx_gb_3_sa_13FeatureVector_6generator4(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
+
+/* Python wrapper */
+static PyObject *__pyx_pw_3_sa_13FeatureVector_5__iter__(PyObject *__pyx_v_self); /*proto*/
+static PyObject *__pyx_pw_3_sa_13FeatureVector_5__iter__(PyObject *__pyx_v_self) {
+  PyObject *__pyx_r = 0;
+  __Pyx_RefNannyDeclarations
+  __Pyx_RefNannySetupContext("__iter__ (wrapper)", 0);
+  __pyx_r = __pyx_pf_3_sa_13FeatureVector_4__iter__(((struct __pyx_obj_3_sa_FeatureVector *)__pyx_v_self));
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":15
+ *         self.values.append(value)
+ * 
+ *     def __iter__(self):             # <<<<<<<<<<<<<<
+ *         cdef unsigned i
+ *         for i in range(self.names.len):
+ */
+
+static PyObject *__pyx_pf_3_sa_13FeatureVector_4__iter__(struct __pyx_obj_3_sa_FeatureVector *__pyx_v_self) {
+  struct __pyx_obj_3_sa___pyx_scope_struct_8___iter__ *__pyx_cur_scope;
+  PyObject *__pyx_r = NULL;
+  __Pyx_RefNannyDeclarations
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
+  __Pyx_RefNannySetupContext("__iter__", 0);
+  __pyx_cur_scope = (struct __pyx_obj_3_sa___pyx_scope_struct_8___iter__ *)__pyx_ptype_3_sa___pyx_scope_struct_8___iter__->tp_new(__pyx_ptype_3_sa___pyx_scope_struct_8___iter__, __pyx_empty_tuple, NULL);
+  if (unlikely(!__pyx_cur_scope)) {
+    __Pyx_RefNannyFinishContext();
+    return NULL;
+  }
+  __Pyx_GOTREF(__pyx_cur_scope);
+  __pyx_cur_scope->__pyx_v_self = __pyx_v_self;
+  __Pyx_INCREF((PyObject *)__pyx_cur_scope->__pyx_v_self);
+  __Pyx_GIVEREF((PyObject *)__pyx_cur_scope->__pyx_v_self);
+  {
+    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_3_sa_13FeatureVector_6generator4, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 15; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_DECREF(__pyx_cur_scope);
+    __Pyx_RefNannyFinishContext();
+    return (PyObject *) gen;
+  }
+
+  __pyx_r = Py_None; __Pyx_INCREF(Py_None);
+  goto __pyx_L0;
+  __pyx_L1_error:;
+  __Pyx_AddTraceback("_sa.FeatureVector.__iter__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __pyx_r = NULL;
+  __pyx_L0:;
+  __Pyx_DECREF(((PyObject *)__pyx_cur_scope));
+  __Pyx_XGIVEREF(__pyx_r);
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+
+static PyObject *__pyx_gb_3_sa_13FeatureVector_6generator4(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
+{
+  struct __pyx_obj_3_sa___pyx_scope_struct_8___iter__ *__pyx_cur_scope = ((struct __pyx_obj_3_sa___pyx_scope_struct_8___iter__ *)__pyx_generator->closure);
+  PyObject *__pyx_r = NULL;
+  int __pyx_t_1;
+  unsigned int __pyx_t_2;
+  PyObject *__pyx_t_3 = NULL;
+  int __pyx_t_4;
+  PyObject *__pyx_t_5 = NULL;
+  PyObject *__pyx_t_6 = NULL;
+  __Pyx_RefNannyDeclarations
+  __Pyx_RefNannySetupContext("None", 0);
+  switch (__pyx_generator->resume_label) {
+    case 0: goto __pyx_L3_first_run;
+    case 1: goto __pyx_L6_resume_from_yield;
+    default: /* CPython raises the right error here */
+    __Pyx_RefNannyFinishContext();
+    return NULL;
+  }
+  __pyx_L3_first_run:;
+  if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 15; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":17
+ *     def __iter__(self):
+ *         cdef unsigned i
+ *         for i in range(self.names.len):             # <<<<<<<<<<<<<<
+ *             yield (FD.word(self.names[i]), self.values[i])
+ * 
+ */
+  __pyx_t_1 = __pyx_cur_scope->__pyx_v_self->names->len;
+  for (__pyx_t_2 = 0; __pyx_t_2 < __pyx_t_1; __pyx_t_2+=1) {
+    __pyx_cur_scope->__pyx_v_i = __pyx_t_2;
+
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":18
+ *         cdef unsigned i
+ *         for i in range(self.names.len):
+ *             yield (FD.word(self.names[i]), self.values[i])             # <<<<<<<<<<<<<<
+ * 
+ *     def __str__(self):
+ */
+    __pyx_t_3 = __Pyx_GetItemInt(((PyObject *)__pyx_cur_scope->__pyx_v_self->names), __pyx_cur_scope->__pyx_v_i, sizeof(unsigned int)+1, PyLong_FromUnsignedLong); if (!__pyx_t_3) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 18; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_3);
+    __pyx_t_4 = __Pyx_PyInt_AsInt(__pyx_t_3); if (unlikely((__pyx_t_4 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 18; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+    __pyx_t_3 = PyBytes_FromString(((struct __pyx_vtabstruct_3_sa_StringMap *)__pyx_v_3_sa_FD->__pyx_vtab)->word(__pyx_v_3_sa_FD, __pyx_t_4)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 18; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(((PyObject *)__pyx_t_3));
+    __pyx_t_5 = __Pyx_GetItemInt(((PyObject *)__pyx_cur_scope->__pyx_v_self->values), __pyx_cur_scope->__pyx_v_i, sizeof(unsigned int)+1, PyLong_FromUnsignedLong); if (!__pyx_t_5) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 18; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_5);
+    __pyx_t_6 = PyTuple_New(2); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 18; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_6);
+    PyTuple_SET_ITEM(__pyx_t_6, 0, ((PyObject *)__pyx_t_3));
+    __Pyx_GIVEREF(((PyObject *)__pyx_t_3));
+    PyTuple_SET_ITEM(__pyx_t_6, 1, __pyx_t_5);
+    __Pyx_GIVEREF(__pyx_t_5);
+    __pyx_t_3 = 0;
+    __pyx_t_5 = 0;
+    __pyx_r = ((PyObject *)__pyx_t_6);
+    __pyx_t_6 = 0;
+    __pyx_cur_scope->__pyx_t_0 = __pyx_t_1;
+    __pyx_cur_scope->__pyx_t_1 = __pyx_t_2;
+    __Pyx_XGIVEREF(__pyx_r);
+    __Pyx_RefNannyFinishContext();
+    /* return from generator, yielding value */
+    __pyx_generator->resume_label = 1;
+    return __pyx_r;
+    __pyx_L6_resume_from_yield:;
+    __pyx_t_1 = __pyx_cur_scope->__pyx_t_0;
+    __pyx_t_2 = __pyx_cur_scope->__pyx_t_1;
+    if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 18; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  }
+  PyErr_SetNone(PyExc_StopIteration);
+  goto __pyx_L0;
+  __pyx_L1_error:;
+  __Pyx_XDECREF(__pyx_t_3);
+  __Pyx_XDECREF(__pyx_t_5);
+  __Pyx_XDECREF(__pyx_t_6);
+  __Pyx_AddTraceback("__iter__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __pyx_L0:;
+  __Pyx_XDECREF(__pyx_r);
+  __pyx_generator->resume_label = -1;
+  __Pyx_Generator_clear((PyObject*)__pyx_generator);
+  __Pyx_RefNannyFinishContext();
+  return NULL;
+}
+
+/* Python wrapper */
+static PyObject *__pyx_pw_3_sa_13FeatureVector_8__str__(PyObject *__pyx_v_self); /*proto*/
+static PyObject *__pyx_pw_3_sa_13FeatureVector_8__str__(PyObject *__pyx_v_self) {
+  PyObject *__pyx_r = 0;
+  __Pyx_RefNannyDeclarations
+  __Pyx_RefNannySetupContext("__str__ (wrapper)", 0);
+  __pyx_r = __pyx_pf_3_sa_13FeatureVector_7__str__(((struct __pyx_obj_3_sa_FeatureVector *)__pyx_v_self));
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+static PyObject *__pyx_gb_3_sa_13FeatureVector_7__str___2generator8(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
+
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":21
+ * 
+ *     def __str__(self):
+ *         return ' '.join('%s=%s' % feat for feat in self)             # <<<<<<<<<<<<<<
+ * 
+ * cdef class Scorer:
+ */
+
+static PyObject *__pyx_pf_3_sa_13FeatureVector_7__str___genexpr(PyObject *__pyx_self) {
+  struct __pyx_obj_3_sa___pyx_scope_struct_10_genexpr *__pyx_cur_scope;
+  PyObject *__pyx_r = NULL;
+  __Pyx_RefNannyDeclarations
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
+  __Pyx_RefNannySetupContext("genexpr", 0);
+  __pyx_cur_scope = (struct __pyx_obj_3_sa___pyx_scope_struct_10_genexpr *)__pyx_ptype_3_sa___pyx_scope_struct_10_genexpr->tp_new(__pyx_ptype_3_sa___pyx_scope_struct_10_genexpr, __pyx_empty_tuple, NULL);
+  if (unlikely(!__pyx_cur_scope)) {
+    __Pyx_RefNannyFinishContext();
+    return NULL;
+  }
+  __Pyx_GOTREF(__pyx_cur_scope);
+  __pyx_cur_scope->__pyx_outer_scope = (struct __pyx_obj_3_sa___pyx_scope_struct_9___str__ *) __pyx_self;
+  __Pyx_INCREF(((PyObject *)__pyx_cur_scope->__pyx_outer_scope));
+  __Pyx_GIVEREF(__pyx_cur_scope->__pyx_outer_scope);
+  {
+    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_3_sa_13FeatureVector_7__str___2generator8, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 21; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_DECREF(__pyx_cur_scope);
+    __Pyx_RefNannyFinishContext();
+    return (PyObject *) gen;
+  }
+
+  __pyx_r = Py_None; __Pyx_INCREF(Py_None);
+  goto __pyx_L0;
+  __pyx_L1_error:;
+  __Pyx_AddTraceback("_sa.FeatureVector.__str__.genexpr", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __pyx_r = NULL;
+  __pyx_L0:;
+  __Pyx_DECREF(((PyObject *)__pyx_cur_scope));
+  __Pyx_XGIVEREF(__pyx_r);
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+
+static PyObject *__pyx_gb_3_sa_13FeatureVector_7__str___2generator8(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
+{
+  struct __pyx_obj_3_sa___pyx_scope_struct_10_genexpr *__pyx_cur_scope = ((struct __pyx_obj_3_sa___pyx_scope_struct_10_genexpr *)__pyx_generator->closure);
+  PyObject *__pyx_r = NULL;
+  PyObject *__pyx_t_1 = NULL;
+  Py_ssize_t __pyx_t_2;
+  PyObject *(*__pyx_t_3)(PyObject *);
+  PyObject *__pyx_t_4 = NULL;
+  __Pyx_RefNannyDeclarations
+  __Pyx_RefNannySetupContext("None", 0);
+  switch (__pyx_generator->resume_label) {
+    case 0: goto __pyx_L3_first_run;
+    case 1: goto __pyx_L6_resume_from_yield;
+    default: /* CPython raises the right error here */
+    __Pyx_RefNannyFinishContext();
+    return NULL;
+  }
+  __pyx_L3_first_run:;
+  if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 21; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (unlikely(!__pyx_cur_scope->__pyx_outer_scope->__pyx_v_self)) { __Pyx_RaiseClosureNameError("self"); {__pyx_filename = __pyx_f[13]; __pyx_lineno = 21; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+  if (PyList_CheckExact(((PyObject *)__pyx_cur_scope->__pyx_outer_scope->__pyx_v_self)) || PyTuple_CheckExact(((PyObject *)__pyx_cur_scope->__pyx_outer_scope->__pyx_v_self))) {
+    __pyx_t_1 = ((PyObject *)__pyx_cur_scope->__pyx_outer_scope->__pyx_v_self); __Pyx_INCREF(__pyx_t_1); __pyx_t_2 = 0;
+    __pyx_t_3 = NULL;
+  } else {
+    __pyx_t_2 = -1; __pyx_t_1 = PyObject_GetIter(((PyObject *)__pyx_cur_scope->__pyx_outer_scope->__pyx_v_self)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 21; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_1);
+    __pyx_t_3 = Py_TYPE(__pyx_t_1)->tp_iternext;
+  }
+  for (;;) {
+    if (!__pyx_t_3 && PyList_CheckExact(__pyx_t_1)) {
+      if (__pyx_t_2 >= PyList_GET_SIZE(__pyx_t_1)) break;
+      #if CYTHON_COMPILING_IN_CPYTHON
+      __pyx_t_4 = PyList_GET_ITEM(__pyx_t_1, __pyx_t_2); __Pyx_INCREF(__pyx_t_4); __pyx_t_2++;
+      #else
+      __pyx_t_4 = PySequence_ITEM(__pyx_t_1, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 21; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+      #endif
+    } else if (!__pyx_t_3 && PyTuple_CheckExact(__pyx_t_1)) {
+      if (__pyx_t_2 >= PyTuple_GET_SIZE(__pyx_t_1)) break;
+      #if CYTHON_COMPILING_IN_CPYTHON
+      __pyx_t_4 = PyTuple_GET_ITEM(__pyx_t_1, __pyx_t_2); __Pyx_INCREF(__pyx_t_4); __pyx_t_2++;
+      #else
+      __pyx_t_4 = PySequence_ITEM(__pyx_t_1, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 21; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+      #endif
+    } else {
+      __pyx_t_4 = __pyx_t_3(__pyx_t_1);
+      if (unlikely(!__pyx_t_4)) {
+        if (PyErr_Occurred()) {
+          if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
+          else {__pyx_filename = __pyx_f[13]; __pyx_lineno = 21; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        }
+        break;
+      }
+      __Pyx_GOTREF(__pyx_t_4);
+    }
+    __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_feat);
+    __Pyx_XDECREF(__pyx_cur_scope->__pyx_v_feat);
+    __Pyx_GIVEREF(__pyx_t_4);
+    __pyx_cur_scope->__pyx_v_feat = __pyx_t_4;
+    __pyx_t_4 = 0;
+    __pyx_t_4 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_99), __pyx_cur_scope->__pyx_v_feat); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 21; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(((PyObject *)__pyx_t_4));
+    __pyx_r = ((PyObject *)__pyx_t_4);
+    __pyx_t_4 = 0;
+    __Pyx_XGIVEREF(__pyx_t_1);
+    __pyx_cur_scope->__pyx_t_0 = __pyx_t_1;
+    __pyx_cur_scope->__pyx_t_1 = __pyx_t_2;
+    __pyx_cur_scope->__pyx_t_2 = __pyx_t_3;
+    __Pyx_XGIVEREF(__pyx_r);
+    __Pyx_RefNannyFinishContext();
+    /* return from generator, yielding value */
+    __pyx_generator->resume_label = 1;
+    return __pyx_r;
+    __pyx_L6_resume_from_yield:;
+    __pyx_t_1 = __pyx_cur_scope->__pyx_t_0;
+    __pyx_cur_scope->__pyx_t_0 = 0;
+    __Pyx_XGOTREF(__pyx_t_1);
+    __pyx_t_2 = __pyx_cur_scope->__pyx_t_1;
+    __pyx_t_3 = __pyx_cur_scope->__pyx_t_2;
+    if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 21; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  }
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  PyErr_SetNone(PyExc_StopIteration);
+  goto __pyx_L0;
+  __pyx_L1_error:;
+  __Pyx_XDECREF(__pyx_t_1);
+  __Pyx_XDECREF(__pyx_t_4);
+  __Pyx_AddTraceback("genexpr", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __pyx_L0:;
+  __Pyx_XDECREF(__pyx_r);
+  __pyx_generator->resume_label = -1;
+  __Pyx_Generator_clear((PyObject*)__pyx_generator);
+  __Pyx_RefNannyFinishContext();
+  return NULL;
+}
+
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":20
+ *             yield (FD.word(self.names[i]), self.values[i])
+ * 
+ *     def __str__(self):             # <<<<<<<<<<<<<<
+ *         return ' '.join('%s=%s' % feat for feat in self)
+ * 
+ */
+
+static PyObject *__pyx_pf_3_sa_13FeatureVector_7__str__(struct __pyx_obj_3_sa_FeatureVector *__pyx_v_self) {
+  struct __pyx_obj_3_sa___pyx_scope_struct_9___str__ *__pyx_cur_scope;
+  PyObject *__pyx_r = NULL;
+  __Pyx_RefNannyDeclarations
+  PyObject *__pyx_t_1 = NULL;
+  PyObject *__pyx_t_2 = NULL;
+  PyObject *__pyx_t_3 = NULL;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
+  __Pyx_RefNannySetupContext("__str__", 0);
+  __pyx_cur_scope = (struct __pyx_obj_3_sa___pyx_scope_struct_9___str__ *)__pyx_ptype_3_sa___pyx_scope_struct_9___str__->tp_new(__pyx_ptype_3_sa___pyx_scope_struct_9___str__, __pyx_empty_tuple, NULL);
+  if (unlikely(!__pyx_cur_scope)) {
+    __Pyx_RefNannyFinishContext();
+    return NULL;
+  }
+  __Pyx_GOTREF(__pyx_cur_scope);
+  __pyx_cur_scope->__pyx_v_self = __pyx_v_self;
+  __Pyx_INCREF((PyObject *)__pyx_cur_scope->__pyx_v_self);
+  __Pyx_GIVEREF((PyObject *)__pyx_cur_scope->__pyx_v_self);
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":21
+ * 
+ *     def __str__(self):
+ *         return ' '.join('%s=%s' % feat for feat in self)             # <<<<<<<<<<<<<<
+ * 
+ * cdef class Scorer:
+ */
+  __Pyx_XDECREF(__pyx_r);
+  __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_kp_s_67), __pyx_n_s__join); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 21; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_1);
+  __pyx_t_2 = __pyx_pf_3_sa_13FeatureVector_7__str___genexpr(((PyObject*)__pyx_cur_scope)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 21; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 21; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_2);
+  __Pyx_GIVEREF(__pyx_t_2);
+  __pyx_t_2 = 0;
+  __pyx_t_2 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 21; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
+  __pyx_r = __pyx_t_2;
+  __pyx_t_2 = 0;
+  goto __pyx_L0;
+
+  __pyx_r = Py_None; __Pyx_INCREF(Py_None);
+  goto __pyx_L0;
+  __pyx_L1_error:;
+  __Pyx_XDECREF(__pyx_t_1);
+  __Pyx_XDECREF(__pyx_t_2);
+  __Pyx_XDECREF(__pyx_t_3);
+  __Pyx_AddTraceback("_sa.FeatureVector.__str__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __pyx_r = NULL;
+  __pyx_L0:;
+  __Pyx_DECREF(((PyObject *)__pyx_cur_scope));
+  __Pyx_XGIVEREF(__pyx_r);
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+
+/* Python wrapper */
+static int __pyx_pw_3_sa_6Scorer_1__init__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static int __pyx_pw_3_sa_6Scorer_1__init__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+  PyObject *__pyx_v_models = 0;
+  int __pyx_r;
+  __Pyx_RefNannyDeclarations
+  __Pyx_RefNannySetupContext("__init__ (wrapper)", 0);
+  if (unlikely(__pyx_kwds) && unlikely(PyDict_Size(__pyx_kwds) > 0) && unlikely(!__Pyx_CheckKeywordStrings(__pyx_kwds, "__init__", 0))) return -1;
+  __Pyx_INCREF(__pyx_args);
+  __pyx_v_models = __pyx_args;
+  __pyx_r = __pyx_pf_3_sa_6Scorer___init__(((struct __pyx_obj_3_sa_Scorer *)__pyx_v_self), __pyx_v_models);
+  __Pyx_XDECREF(__pyx_v_models);
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":25
+ * cdef class Scorer:
+ *     cdef models
+ *     def __init__(self, *models):             # <<<<<<<<<<<<<<
+ *         names = [FD.index(<char *>model.__name__) for model in models]
+ *         self.models = zip(names, models)
+ */
+
+static int __pyx_pf_3_sa_6Scorer___init__(struct __pyx_obj_3_sa_Scorer *__pyx_v_self, PyObject *__pyx_v_models) {
+  PyObject *__pyx_v_names = NULL;
+  PyObject *__pyx_v_model = NULL;
+  int __pyx_r;
+  __Pyx_RefNannyDeclarations
+  PyObject *__pyx_t_1 = NULL;
+  PyObject *__pyx_t_2 = NULL;
+  Py_ssize_t __pyx_t_3;
+  PyObject *__pyx_t_4 = NULL;
+  char *__pyx_t_5;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
+  __Pyx_RefNannySetupContext("__init__", 0);
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":26
+ *     cdef models
+ *     def __init__(self, *models):
+ *         names = [FD.index(<char *>model.__name__) for model in models]             # <<<<<<<<<<<<<<
+ *         self.models = zip(names, models)
+ * 
+ */
+  __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 26; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_1);
+  __pyx_t_2 = ((PyObject *)__pyx_v_models); __Pyx_INCREF(__pyx_t_2); __pyx_t_3 = 0;
+  for (;;) {
+    if (__pyx_t_3 >= PyTuple_GET_SIZE(__pyx_t_2)) break;
+    #if CYTHON_COMPILING_IN_CPYTHON
+    __pyx_t_4 = PyTuple_GET_ITEM(__pyx_t_2, __pyx_t_3); __Pyx_INCREF(__pyx_t_4); __pyx_t_3++;
+    #else
+    __pyx_t_4 = PySequence_ITEM(__pyx_t_2, __pyx_t_3); __pyx_t_3++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 26; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+    #endif
+    __Pyx_XDECREF(__pyx_v_model);
+    __pyx_v_model = __pyx_t_4;
+    __pyx_t_4 = 0;
+    __pyx_t_4 = PyObject_GetAttr(__pyx_v_model, __pyx_n_s____name__); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 26; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_4);
+    __pyx_t_5 = PyBytes_AsString(__pyx_t_4); if (unlikely((!__pyx_t_5) && PyErr_Occurred())) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 26; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+    __pyx_t_4 = PyInt_FromLong(((struct __pyx_vtabstruct_3_sa_StringMap *)__pyx_v_3_sa_FD->__pyx_vtab)->index(__pyx_v_3_sa_FD, ((char *)__pyx_t_5))); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 26; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_4);
+    if (unlikely(__Pyx_PyList_Append(__pyx_t_1, (PyObject*)__pyx_t_4))) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 26; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+  }
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+  __Pyx_INCREF(((PyObject *)__pyx_t_1));
+  __pyx_v_names = __pyx_t_1;
+  __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":27
+ *     def __init__(self, *models):
+ *         names = [FD.index(<char *>model.__name__) for model in models]
+ *         self.models = zip(names, models)             # <<<<<<<<<<<<<<
+ * 
+ *     cdef FeatureVector score(self, Phrase fphrase, Phrase ephrase,
+ */
+  __pyx_t_1 = PyTuple_New(2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 27; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_1);
+  __Pyx_INCREF(((PyObject *)__pyx_v_names));
+  PyTuple_SET_ITEM(__pyx_t_1, 0, ((PyObject *)__pyx_v_names));
+  __Pyx_GIVEREF(((PyObject *)__pyx_v_names));
+  __Pyx_INCREF(((PyObject *)__pyx_v_models));
+  PyTuple_SET_ITEM(__pyx_t_1, 1, ((PyObject *)__pyx_v_models));
+  __Pyx_GIVEREF(((PyObject *)__pyx_v_models));
+  __pyx_t_2 = PyObject_Call(__pyx_builtin_zip, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 27; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+  __Pyx_GIVEREF(__pyx_t_2);
+  __Pyx_GOTREF(__pyx_v_self->models);
+  __Pyx_DECREF(__pyx_v_self->models);
+  __pyx_v_self->models = __pyx_t_2;
+  __pyx_t_2 = 0;
+
+  __pyx_r = 0;
+  goto __pyx_L0;
+  __pyx_L1_error:;
+  __Pyx_XDECREF(__pyx_t_1);
+  __Pyx_XDECREF(__pyx_t_2);
+  __Pyx_XDECREF(__pyx_t_4);
+  __Pyx_AddTraceback("_sa.Scorer.__init__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __pyx_r = -1;
+  __pyx_L0:;
+  __Pyx_XDECREF(__pyx_v_names);
+  __Pyx_XDECREF(__pyx_v_model);
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":29
+ *         self.models = zip(names, models)
+ * 
+ *     cdef FeatureVector score(self, Phrase fphrase, Phrase ephrase,             # <<<<<<<<<<<<<<
+ *             unsigned paircount, unsigned fcount, unsigned fsample_count):
+ *         cdef FeatureVector scores = FeatureVector()
+ */
+
+static struct __pyx_obj_3_sa_FeatureVector *__pyx_f_3_sa_6Scorer_score(struct __pyx_obj_3_sa_Scorer *__pyx_v_self, struct __pyx_obj_3_sa_Phrase *__pyx_v_fphrase, struct __pyx_obj_3_sa_Phrase *__pyx_v_ephrase, unsigned int __pyx_v_paircount, unsigned int __pyx_v_fcount, unsigned int __pyx_v_fsample_count) {
+  struct __pyx_obj_3_sa_FeatureVector *__pyx_v_scores = 0;
+  PyObject *__pyx_v_name = NULL;
+  PyObject *__pyx_v_model = NULL;
+  struct __pyx_obj_3_sa_FeatureVector *__pyx_r = NULL;
+  __Pyx_RefNannyDeclarations
+  PyObject *__pyx_t_1 = NULL;
+  Py_ssize_t __pyx_t_2;
+  PyObject *(*__pyx_t_3)(PyObject *);
+  PyObject *__pyx_t_4 = NULL;
+  PyObject *__pyx_t_5 = NULL;
+  PyObject *__pyx_t_6 = NULL;
+  PyObject *__pyx_t_7 = NULL;
+  PyObject *(*__pyx_t_8)(PyObject *);
+  PyObject *__pyx_t_9 = NULL;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
+  __Pyx_RefNannySetupContext("score", 0);
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":31
+ *     cdef FeatureVector score(self, Phrase fphrase, Phrase ephrase,
+ *             unsigned paircount, unsigned fcount, unsigned fsample_count):
+ *         cdef FeatureVector scores = FeatureVector()             # <<<<<<<<<<<<<<
+ *         for name, model in self.models:
+ *             scores.set(name, model(fphrase, ephrase, paircount, fcount, fsample_count))
+ */
+  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_FeatureVector)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 31; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_1);
+  __pyx_v_scores = ((struct __pyx_obj_3_sa_FeatureVector *)__pyx_t_1);
+  __pyx_t_1 = 0;
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":32
+ *             unsigned paircount, unsigned fcount, unsigned fsample_count):
+ *         cdef FeatureVector scores = FeatureVector()
+ *         for name, model in self.models:             # <<<<<<<<<<<<<<
+ *             scores.set(name, model(fphrase, ephrase, paircount, fcount, fsample_count))
+ *         return scores
+ */
+  if (PyList_CheckExact(__pyx_v_self->models) || PyTuple_CheckExact(__pyx_v_self->models)) {
+    __pyx_t_1 = __pyx_v_self->models; __Pyx_INCREF(__pyx_t_1); __pyx_t_2 = 0;
+    __pyx_t_3 = NULL;
+  } else {
+    __pyx_t_2 = -1; __pyx_t_1 = PyObject_GetIter(__pyx_v_self->models); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 32; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_1);
+    __pyx_t_3 = Py_TYPE(__pyx_t_1)->tp_iternext;
+  }
+  for (;;) {
+    if (!__pyx_t_3 && PyList_CheckExact(__pyx_t_1)) {
+      if (__pyx_t_2 >= PyList_GET_SIZE(__pyx_t_1)) break;
+      #if CYTHON_COMPILING_IN_CPYTHON
+      __pyx_t_4 = PyList_GET_ITEM(__pyx_t_1, __pyx_t_2); __Pyx_INCREF(__pyx_t_4); __pyx_t_2++;
+      #else
+      __pyx_t_4 = PySequence_ITEM(__pyx_t_1, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 32; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+      #endif
+    } else if (!__pyx_t_3 && PyTuple_CheckExact(__pyx_t_1)) {
+      if (__pyx_t_2 >= PyTuple_GET_SIZE(__pyx_t_1)) break;
+      #if CYTHON_COMPILING_IN_CPYTHON
+      __pyx_t_4 = PyTuple_GET_ITEM(__pyx_t_1, __pyx_t_2); __Pyx_INCREF(__pyx_t_4); __pyx_t_2++;
+      #else
+      __pyx_t_4 = PySequence_ITEM(__pyx_t_1, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 32; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+      #endif
+    } else {
+      __pyx_t_4 = __pyx_t_3(__pyx_t_1);
+      if (unlikely(!__pyx_t_4)) {
+        if (PyErr_Occurred()) {
+          if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
+          else {__pyx_filename = __pyx_f[13]; __pyx_lineno = 32; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        }
+        break;
+      }
+      __Pyx_GOTREF(__pyx_t_4);
+    }
+    if ((likely(PyTuple_CheckExact(__pyx_t_4))) || (PyList_CheckExact(__pyx_t_4))) {
+      PyObject* sequence = __pyx_t_4;
+      #if CYTHON_COMPILING_IN_CPYTHON
+      Py_ssize_t size = Py_SIZE(sequence);
+      #else
+      Py_ssize_t size = PySequence_Size(sequence);
+      #endif
+      if (unlikely(size != 2)) {
+        if (size > 2) __Pyx_RaiseTooManyValuesError(2);
+        else if (size >= 0) __Pyx_RaiseNeedMoreValuesError(size);
+        {__pyx_filename = __pyx_f[13]; __pyx_lineno = 32; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      }
+      #if CYTHON_COMPILING_IN_CPYTHON
+      if (likely(PyTuple_CheckExact(sequence))) {
+        __pyx_t_5 = PyTuple_GET_ITEM(sequence, 0); 
+        __pyx_t_6 = PyTuple_GET_ITEM(sequence, 1); 
+      } else {
+        __pyx_t_5 = PyList_GET_ITEM(sequence, 0); 
+        __pyx_t_6 = PyList_GET_ITEM(sequence, 1); 
+      }
+      __Pyx_INCREF(__pyx_t_5);
+      __Pyx_INCREF(__pyx_t_6);
+      #else
+      __pyx_t_5 = PySequence_ITEM(sequence, 0); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 32; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 32; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      #endif
+      __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+    } else
+    {
+      Py_ssize_t index = -1;
+      __pyx_t_7 = PyObject_GetIter(__pyx_t_4); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 32; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_7);
+      __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+      __pyx_t_8 = Py_TYPE(__pyx_t_7)->tp_iternext;
+      index = 0; __pyx_t_5 = __pyx_t_8(__pyx_t_7); if (unlikely(!__pyx_t_5)) goto __pyx_L5_unpacking_failed;
+      __Pyx_GOTREF(__pyx_t_5);
+      index = 1; __pyx_t_6 = __pyx_t_8(__pyx_t_7); if (unlikely(!__pyx_t_6)) goto __pyx_L5_unpacking_failed;
+      __Pyx_GOTREF(__pyx_t_6);
+      if (__Pyx_IternextUnpackEndCheck(__pyx_t_8(__pyx_t_7), 2) < 0) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 32; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = NULL;
+      __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
+      goto __pyx_L6_unpacking_done;
+      __pyx_L5_unpacking_failed:;
+      __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
+      __pyx_t_8 = NULL;
+      if (__Pyx_IterFinish() == 0) __Pyx_RaiseNeedMoreValuesError(index);
+      {__pyx_filename = __pyx_f[13]; __pyx_lineno = 32; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_L6_unpacking_done:;
+    }
+    __Pyx_XDECREF(__pyx_v_name);
+    __pyx_v_name = __pyx_t_5;
+    __pyx_t_5 = 0;
+    __Pyx_XDECREF(__pyx_v_model);
+    __pyx_v_model = __pyx_t_6;
+    __pyx_t_6 = 0;
+
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":33
+ *         cdef FeatureVector scores = FeatureVector()
+ *         for name, model in self.models:
+ *             scores.set(name, model(fphrase, ephrase, paircount, fcount, fsample_count))             # <<<<<<<<<<<<<<
+ *         return scores
+ * 
+ */
+    __pyx_t_4 = PyObject_GetAttr(((PyObject *)__pyx_v_scores), __pyx_n_s__set); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 33; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_4);
+    __pyx_t_6 = PyLong_FromUnsignedLong(__pyx_v_paircount); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 33; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_6);
+    __pyx_t_5 = PyLong_FromUnsignedLong(__pyx_v_fcount); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 33; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_5);
+    __pyx_t_7 = PyLong_FromUnsignedLong(__pyx_v_fsample_count); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 33; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_7);
+    __pyx_t_9 = PyTuple_New(5); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 33; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_9);
+    __Pyx_INCREF(((PyObject *)__pyx_v_fphrase));
+    PyTuple_SET_ITEM(__pyx_t_9, 0, ((PyObject *)__pyx_v_fphrase));
+    __Pyx_GIVEREF(((PyObject *)__pyx_v_fphrase));
+    __Pyx_INCREF(((PyObject *)__pyx_v_ephrase));
+    PyTuple_SET_ITEM(__pyx_t_9, 1, ((PyObject *)__pyx_v_ephrase));
+    __Pyx_GIVEREF(((PyObject *)__pyx_v_ephrase));
+    PyTuple_SET_ITEM(__pyx_t_9, 2, __pyx_t_6);
+    __Pyx_GIVEREF(__pyx_t_6);
+    PyTuple_SET_ITEM(__pyx_t_9, 3, __pyx_t_5);
+    __Pyx_GIVEREF(__pyx_t_5);
+    PyTuple_SET_ITEM(__pyx_t_9, 4, __pyx_t_7);
+    __Pyx_GIVEREF(__pyx_t_7);
+    __pyx_t_6 = 0;
+    __pyx_t_5 = 0;
+    __pyx_t_7 = 0;
+    __pyx_t_7 = PyObject_Call(__pyx_v_model, ((PyObject *)__pyx_t_9), NULL); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 33; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_7);
+    __Pyx_DECREF(((PyObject *)__pyx_t_9)); __pyx_t_9 = 0;
+    __pyx_t_9 = PyTuple_New(2); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 33; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_9);
+    __Pyx_INCREF(__pyx_v_name);
+    PyTuple_SET_ITEM(__pyx_t_9, 0, __pyx_v_name);
+    __Pyx_GIVEREF(__pyx_v_name);
+    PyTuple_SET_ITEM(__pyx_t_9, 1, __pyx_t_7);
+    __Pyx_GIVEREF(__pyx_t_7);
+    __pyx_t_7 = 0;
+    __pyx_t_7 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_9), NULL); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 33; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_7);
+    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+    __Pyx_DECREF(((PyObject *)__pyx_t_9)); __pyx_t_9 = 0;
+    __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
+  }
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":34
+ *         for name, model in self.models:
+ *             scores.set(name, model(fphrase, ephrase, paircount, fcount, fsample_count))
+ *         return scores             # <<<<<<<<<<<<<<
+ * 
+ * from libc.stdlib cimport malloc, realloc, free
+ */
+  __Pyx_XDECREF(((PyObject *)__pyx_r));
+  __Pyx_INCREF(((PyObject *)__pyx_v_scores));
+  __pyx_r = __pyx_v_scores;
+  goto __pyx_L0;
+
+  __pyx_r = ((struct __pyx_obj_3_sa_FeatureVector *)Py_None); __Pyx_INCREF(Py_None);
+  goto __pyx_L0;
+  __pyx_L1_error:;
+  __Pyx_XDECREF(__pyx_t_1);
+  __Pyx_XDECREF(__pyx_t_4);
+  __Pyx_XDECREF(__pyx_t_5);
+  __Pyx_XDECREF(__pyx_t_6);
+  __Pyx_XDECREF(__pyx_t_7);
+  __Pyx_XDECREF(__pyx_t_9);
+  __Pyx_AddTraceback("_sa.Scorer.score", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __pyx_r = 0;
+  __pyx_L0:;
+  __Pyx_XDECREF((PyObject *)__pyx_v_scores);
+  __Pyx_XDECREF(__pyx_v_name);
+  __Pyx_XDECREF(__pyx_v_model);
+  __Pyx_XGIVEREF((PyObject *)__pyx_r);
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+
+/* Python wrapper */
+static void __pyx_pw_3_sa_13DefaultScorer_1__dealloc__(PyObject *__pyx_v_self); /*proto*/
+static void __pyx_pw_3_sa_13DefaultScorer_1__dealloc__(PyObject *__pyx_v_self) {
+  __Pyx_RefNannyDeclarations
+  __Pyx_RefNannySetupContext("__dealloc__ (wrapper)", 0);
+  __pyx_pf_3_sa_13DefaultScorer___dealloc__(((struct __pyx_obj_3_sa_DefaultScorer *)__pyx_v_self));
+  __Pyx_RefNannyFinishContext();
+}
+
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":53
+ *     cdef int* fid
+ * 
+ *     def __dealloc__(self):             # <<<<<<<<<<<<<<
+ *         free(self.fid)
+ * 
+ */
+
+static void __pyx_pf_3_sa_13DefaultScorer___dealloc__(struct __pyx_obj_3_sa_DefaultScorer *__pyx_v_self) {
+  __Pyx_RefNannyDeclarations
+  __Pyx_RefNannySetupContext("__dealloc__", 0);
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":54
+ * 
+ *     def __dealloc__(self):
+ *         free(self.fid)             # <<<<<<<<<<<<<<
+ * 
+ *     def __init__(self, BiLex ttable):
+ */
+  free(__pyx_v_self->fid);
+
+  __Pyx_RefNannyFinishContext();
+}
+
+/* Python wrapper */
+static int __pyx_pw_3_sa_13DefaultScorer_3__init__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static int __pyx_pw_3_sa_13DefaultScorer_3__init__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+  struct __pyx_obj_3_sa_BiLex *__pyx_v_ttable = 0;
+  int __pyx_r;
+  __Pyx_RefNannyDeclarations
+  __Pyx_RefNannySetupContext("__init__ (wrapper)", 0);
+  {
+    static PyObject **__pyx_pyargnames[] = {&__pyx_n_s__ttable,0};
+    PyObject* values[1] = {0};
+    if (unlikely(__pyx_kwds)) {
+      Py_ssize_t kw_args;
+      const Py_ssize_t pos_args = PyTuple_GET_SIZE(__pyx_args);
+      switch (pos_args) {
+        case  1: values[0] = PyTuple_GET_ITEM(__pyx_args, 0);
+        case  0: break;
+        default: goto __pyx_L5_argtuple_error;
+      }
+      kw_args = PyDict_Size(__pyx_kwds);
+      switch (pos_args) {
+        case  0:
+        if (likely((values[0] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__ttable)) != 0)) kw_args--;
+        else goto __pyx_L5_argtuple_error;
+      }
+      if (unlikely(kw_args > 0)) {
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "__init__") < 0)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 56; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+      }
+    } else if (PyTuple_GET_SIZE(__pyx_args) != 1) {
+      goto __pyx_L5_argtuple_error;
+    } else {
+      values[0] = PyTuple_GET_ITEM(__pyx_args, 0);
+    }
+    __pyx_v_ttable = ((struct __pyx_obj_3_sa_BiLex *)values[0]);
+  }
+  goto __pyx_L4_argument_unpacking_done;
+  __pyx_L5_argtuple_error:;
+  __Pyx_RaiseArgtupleInvalid("__init__", 1, 1, 1, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[13]; __pyx_lineno = 56; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+  __pyx_L3_error:;
+  __Pyx_AddTraceback("_sa.DefaultScorer.__init__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_RefNannyFinishContext();
+  return -1;
+  __pyx_L4_argument_unpacking_done:;
+  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_ttable), __pyx_ptype_3_sa_BiLex, 1, "ttable", 0))) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 56; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_r = __pyx_pf_3_sa_13DefaultScorer_2__init__(((struct __pyx_obj_3_sa_DefaultScorer *)__pyx_v_self), __pyx_v_ttable);
+  goto __pyx_L0;
+  __pyx_L1_error:;
+  __pyx_r = -1;
+  __pyx_L0:;
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":56
+ *         free(self.fid)
+ * 
+ *     def __init__(self, BiLex ttable):             # <<<<<<<<<<<<<<
+ *         self.ttable = ttable
+ *         self.fid = <int*> malloc(NFEATURES*sizeof(int))
+ */
+
+static int __pyx_pf_3_sa_13DefaultScorer_2__init__(struct __pyx_obj_3_sa_DefaultScorer *__pyx_v_self, struct __pyx_obj_3_sa_BiLex *__pyx_v_ttable) {
+  unsigned int __pyx_v_i;
+  PyObject *__pyx_v_fnames = NULL;
+  int __pyx_r;
+  __Pyx_RefNannyDeclarations
+  PyObject *__pyx_t_1 = NULL;
+  PyObject *__pyx_t_2 = NULL;
+  PyObject *__pyx_t_3 = NULL;
+  size_t __pyx_t_4;
+  unsigned int __pyx_t_5;
+  Py_ssize_t __pyx_t_6;
+  char *__pyx_t_7;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
+  __Pyx_RefNannySetupContext("__init__", 0);
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":57
+ * 
+ *     def __init__(self, BiLex ttable):
+ *         self.ttable = ttable             # <<<<<<<<<<<<<<
+ *         self.fid = <int*> malloc(NFEATURES*sizeof(int))
+ *         cdef unsigned i
+ */
+  __Pyx_INCREF(((PyObject *)__pyx_v_ttable));
+  __Pyx_GIVEREF(((PyObject *)__pyx_v_ttable));
+  __Pyx_GOTREF(__pyx_v_self->ttable);
+  __Pyx_DECREF(((PyObject *)__pyx_v_self->ttable));
+  __pyx_v_self->ttable = __pyx_v_ttable;
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":58
+ *     def __init__(self, BiLex ttable):
+ *         self.ttable = ttable
+ *         self.fid = <int*> malloc(NFEATURES*sizeof(int))             # <<<<<<<<<<<<<<
+ *         cdef unsigned i
+ *         for i, fnames in enumerate(('EgivenFCoherent', 'SampleCountF', 'CountEF',
+ */
+  __pyx_t_1 = __Pyx_GetName(__pyx_m, __pyx_n_s__NFEATURES); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 58; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_1);
+  __pyx_t_2 = __Pyx_PyInt_FromSize_t((sizeof(int))); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 58; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __pyx_t_3 = PyNumber_Multiply(__pyx_t_1, __pyx_t_2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 58; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+  __pyx_t_4 = __Pyx_PyInt_AsSize_t(__pyx_t_3); if (unlikely((__pyx_t_4 == (size_t)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 58; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  __pyx_v_self->fid = ((int *)malloc(__pyx_t_4));
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":60
+ *         self.fid = <int*> malloc(NFEATURES*sizeof(int))
+ *         cdef unsigned i
+ *         for i, fnames in enumerate(('EgivenFCoherent', 'SampleCountF', 'CountEF',             # <<<<<<<<<<<<<<
+ *                 'MaxLexFgivenE', 'MaxLexEgivenF', 'IsSingletonF', 'IsSingletonFE')):
+ *             self.fid[i] = FD.index(fnames)
+ */
+  __pyx_t_5 = 0;
+  __pyx_t_3 = ((PyObject *)__pyx_k_tuple_100); __Pyx_INCREF(__pyx_t_3); __pyx_t_6 = 0;
+  for (;;) {
+    if (__pyx_t_6 >= PyTuple_GET_SIZE(__pyx_t_3)) break;
+    #if CYTHON_COMPILING_IN_CPYTHON
+    __pyx_t_2 = PyTuple_GET_ITEM(__pyx_t_3, __pyx_t_6); __Pyx_INCREF(__pyx_t_2); __pyx_t_6++;
+    #else
+    __pyx_t_2 = PySequence_ITEM(__pyx_t_3, __pyx_t_6); __pyx_t_6++; if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 60; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+    #endif
+    __Pyx_XDECREF(__pyx_v_fnames);
+    __pyx_v_fnames = __pyx_t_2;
+    __pyx_t_2 = 0;
+    __pyx_v_i = __pyx_t_5;
+    __pyx_t_5 = (__pyx_t_5 + 1);
+
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":62
+ *         for i, fnames in enumerate(('EgivenFCoherent', 'SampleCountF', 'CountEF',
+ *                 'MaxLexFgivenE', 'MaxLexEgivenF', 'IsSingletonF', 'IsSingletonFE')):
+ *             self.fid[i] = FD.index(fnames)             # <<<<<<<<<<<<<<
+ * 
+ *     cdef FeatureVector score(self, Phrase fphrase, Phrase ephrase,
+ */
+    __pyx_t_7 = PyBytes_AsString(__pyx_v_fnames); if (unlikely((!__pyx_t_7) && PyErr_Occurred())) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 62; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    (__pyx_v_self->fid[__pyx_v_i]) = ((struct __pyx_vtabstruct_3_sa_StringMap *)__pyx_v_3_sa_FD->__pyx_vtab)->index(__pyx_v_3_sa_FD, __pyx_t_7);
+  }
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+
+  __pyx_r = 0;
+  goto __pyx_L0;
+  __pyx_L1_error:;
+  __Pyx_XDECREF(__pyx_t_1);
+  __Pyx_XDECREF(__pyx_t_2);
+  __Pyx_XDECREF(__pyx_t_3);
+  __Pyx_AddTraceback("_sa.DefaultScorer.__init__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __pyx_r = -1;
+  __pyx_L0:;
+  __Pyx_XDECREF(__pyx_v_fnames);
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":64
+ *             self.fid[i] = FD.index(fnames)
+ * 
+ *     cdef FeatureVector score(self, Phrase fphrase, Phrase ephrase,             # <<<<<<<<<<<<<<
+ *             unsigned paircount, unsigned fcount, unsigned fsample_count):
+ *         cdef FeatureVector scores = FeatureVector()
+ */
+
+static struct __pyx_obj_3_sa_FeatureVector *__pyx_f_3_sa_13DefaultScorer_score(struct __pyx_obj_3_sa_DefaultScorer *__pyx_v_self, struct __pyx_obj_3_sa_Phrase *__pyx_v_fphrase, struct __pyx_obj_3_sa_Phrase *__pyx_v_ephrase, unsigned int __pyx_v_paircount, unsigned int __pyx_v_fcount, unsigned int __pyx_v_fsample_count) {
+  struct __pyx_obj_3_sa_FeatureVector *__pyx_v_scores = 0;
+  float __pyx_v_efc;
+  PyObject *__pyx_v_ewords = NULL;
+  float __pyx_v_mlfe;
+  float __pyx_v_max_score;
+  PyObject *__pyx_v_f = NULL;
+  PyObject *__pyx_v_e = NULL;
+  PyObject *__pyx_v_score = NULL;
+  PyObject *__pyx_v_fwords = NULL;
+  float __pyx_v_mlef;
+  struct __pyx_obj_3_sa_FeatureVector *__pyx_r = NULL;
+  __Pyx_RefNannyDeclarations
+  PyObject *__pyx_t_1 = NULL;
+  PyObject *__pyx_t_2 = NULL;
+  Py_ssize_t __pyx_t_3;
+  PyObject *__pyx_t_4 = NULL;
+  PyObject *__pyx_t_5 = NULL;
+  PyObject *(*__pyx_t_6)(PyObject *);
+  Py_ssize_t __pyx_t_7;
+  PyObject *(*__pyx_t_8)(PyObject *);
+  PyObject *__pyx_t_9 = NULL;
+  int __pyx_t_10;
+  float __pyx_t_11;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
+  __Pyx_RefNannySetupContext("score", 0);
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":66
+ *     cdef FeatureVector score(self, Phrase fphrase, Phrase ephrase,
+ *             unsigned paircount, unsigned fcount, unsigned fsample_count):
+ *         cdef FeatureVector scores = FeatureVector()             # <<<<<<<<<<<<<<
+ * 
+ *         #  EgivenFCoherent
+ */
+  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_FeatureVector)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 66; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_1);
+  __pyx_v_scores = ((struct __pyx_obj_3_sa_FeatureVector *)__pyx_t_1);
+  __pyx_t_1 = 0;
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":69
+ * 
+ *         #  EgivenFCoherent
+ *         cdef float efc = <float>paircount/fsample_count             # <<<<<<<<<<<<<<
+ *         scores.set(self.fid[EgivenFCoherent], -log10(efc) if efc > 0 else MAXSCORE)
+ * 
+ */
+  if (unlikely(__pyx_v_fsample_count == 0)) {
+    PyErr_Format(PyExc_ZeroDivisionError, "float division");
+    {__pyx_filename = __pyx_f[13]; __pyx_lineno = 69; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  }
+  __pyx_v_efc = (((float)__pyx_v_paircount) / __pyx_v_fsample_count);
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":70
+ *         #  EgivenFCoherent
+ *         cdef float efc = <float>paircount/fsample_count
+ *         scores.set(self.fid[EgivenFCoherent], -log10(efc) if efc > 0 else MAXSCORE)             # <<<<<<<<<<<<<<
+ * 
+ *         # SampleCountF
+ */
+  __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_v_scores), __pyx_n_s__set); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 70; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_1);
+  __pyx_t_2 = __Pyx_GetName(__pyx_m, __pyx_n_s__EgivenFCoherent); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 70; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __pyx_t_3 = __Pyx_PyIndex_AsSsize_t(__pyx_t_2); if (unlikely((__pyx_t_3 == (Py_ssize_t)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 70; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+  __pyx_t_2 = PyInt_FromLong((__pyx_v_self->fid[__pyx_t_3])); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 70; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  if ((__pyx_v_efc > 0.0)) {
+    __pyx_t_5 = PyFloat_FromDouble((-log10(__pyx_v_efc))); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 70; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_5);
+    __pyx_t_4 = __pyx_t_5;
+    __pyx_t_5 = 0;
+  } else {
+    __pyx_t_5 = __Pyx_GetName(__pyx_m, __pyx_n_s__MAXSCORE); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 70; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_5);
+    __pyx_t_4 = __pyx_t_5;
+    __pyx_t_5 = 0;
+  }
+  __pyx_t_5 = PyTuple_New(2); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 70; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_5);
+  PyTuple_SET_ITEM(__pyx_t_5, 0, __pyx_t_2);
+  __Pyx_GIVEREF(__pyx_t_2);
+  PyTuple_SET_ITEM(__pyx_t_5, 1, __pyx_t_4);
+  __Pyx_GIVEREF(__pyx_t_4);
+  __pyx_t_2 = 0;
+  __pyx_t_4 = 0;
+  __pyx_t_4 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_5), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 70; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __Pyx_DECREF(((PyObject *)__pyx_t_5)); __pyx_t_5 = 0;
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":73
+ * 
+ *         # SampleCountF
+ *         scores.set(self.fid[SampleCountF], log10(1 + fsample_count))             # <<<<<<<<<<<<<<
+ * 
+ *         # CountEF
+ */
+  __pyx_t_4 = PyObject_GetAttr(((PyObject *)__pyx_v_scores), __pyx_n_s__set); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 73; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __pyx_t_5 = __Pyx_GetName(__pyx_m, __pyx_n_s__SampleCountF); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 73; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_5);
+  __pyx_t_3 = __Pyx_PyIndex_AsSsize_t(__pyx_t_5); if (unlikely((__pyx_t_3 == (Py_ssize_t)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 73; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
+  __pyx_t_5 = PyInt_FromLong((__pyx_v_self->fid[__pyx_t_3])); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 73; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_5);
+  __pyx_t_1 = PyFloat_FromDouble(log10((1 + __pyx_v_fsample_count))); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 73; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_1);
+  __pyx_t_2 = PyTuple_New(2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 73; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_t_5);
+  __Pyx_GIVEREF(__pyx_t_5);
+  PyTuple_SET_ITEM(__pyx_t_2, 1, __pyx_t_1);
+  __Pyx_GIVEREF(__pyx_t_1);
+  __pyx_t_5 = 0;
+  __pyx_t_1 = 0;
+  __pyx_t_1 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 73; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_1);
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+  __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":76
+ * 
+ *         # CountEF
+ *         scores.set(self.fid[CountEF], log10(1 + paircount))             # <<<<<<<<<<<<<<
+ * 
+ *         # MaxLexFgivenE TODO typify
+ */
+  __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_v_scores), __pyx_n_s__set); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 76; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_1);
+  __pyx_t_2 = __Pyx_GetName(__pyx_m, __pyx_n_s__CountEF); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 76; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __pyx_t_3 = __Pyx_PyIndex_AsSsize_t(__pyx_t_2); if (unlikely((__pyx_t_3 == (Py_ssize_t)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 76; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+  __pyx_t_2 = PyInt_FromLong((__pyx_v_self->fid[__pyx_t_3])); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 76; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __pyx_t_4 = PyFloat_FromDouble(log10((1 + __pyx_v_paircount))); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 76; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __pyx_t_5 = PyTuple_New(2); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 76; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_5);
+  PyTuple_SET_ITEM(__pyx_t_5, 0, __pyx_t_2);
+  __Pyx_GIVEREF(__pyx_t_2);
+  PyTuple_SET_ITEM(__pyx_t_5, 1, __pyx_t_4);
+  __Pyx_GIVEREF(__pyx_t_4);
+  __pyx_t_2 = 0;
+  __pyx_t_4 = 0;
+  __pyx_t_4 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_5), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 76; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __Pyx_DECREF(((PyObject *)__pyx_t_5)); __pyx_t_5 = 0;
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":79
+ * 
+ *         # MaxLexFgivenE TODO typify
+ *         ewords = ephrase.words             # <<<<<<<<<<<<<<
+ *         ewords.append('NULL')
+ *         cdef float mlfe = 0, max_score = -1
+ */
+  __pyx_t_4 = PyObject_GetAttr(((PyObject *)__pyx_v_ephrase), __pyx_n_s__words); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 79; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __pyx_v_ewords = __pyx_t_4;
+  __pyx_t_4 = 0;
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":80
+ *         # MaxLexFgivenE TODO typify
+ *         ewords = ephrase.words
+ *         ewords.append('NULL')             # <<<<<<<<<<<<<<
+ *         cdef float mlfe = 0, max_score = -1
+ *         for f in fphrase.words:
+ */
+  __pyx_t_4 = __Pyx_PyObject_Append(__pyx_v_ewords, ((PyObject *)__pyx_n_s__NULL)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 80; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":81
+ *         ewords = ephrase.words
+ *         ewords.append('NULL')
+ *         cdef float mlfe = 0, max_score = -1             # <<<<<<<<<<<<<<
+ *         for f in fphrase.words:
+ *             for e in ewords:
+ */
+  __pyx_v_mlfe = 0.0;
+  __pyx_v_max_score = -1.0;
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":82
+ *         ewords.append('NULL')
+ *         cdef float mlfe = 0, max_score = -1
+ *         for f in fphrase.words:             # <<<<<<<<<<<<<<
+ *             for e in ewords:
+ *                 score = self.ttable.get_score(f, e, 1)
+ */
+  __pyx_t_4 = PyObject_GetAttr(((PyObject *)__pyx_v_fphrase), __pyx_n_s__words); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 82; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  if (PyList_CheckExact(__pyx_t_4) || PyTuple_CheckExact(__pyx_t_4)) {
+    __pyx_t_5 = __pyx_t_4; __Pyx_INCREF(__pyx_t_5); __pyx_t_3 = 0;
+    __pyx_t_6 = NULL;
+  } else {
+    __pyx_t_3 = -1; __pyx_t_5 = PyObject_GetIter(__pyx_t_4); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 82; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_5);
+    __pyx_t_6 = Py_TYPE(__pyx_t_5)->tp_iternext;
+  }
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+  for (;;) {
+    if (!__pyx_t_6 && PyList_CheckExact(__pyx_t_5)) {
+      if (__pyx_t_3 >= PyList_GET_SIZE(__pyx_t_5)) break;
+      #if CYTHON_COMPILING_IN_CPYTHON
+      __pyx_t_4 = PyList_GET_ITEM(__pyx_t_5, __pyx_t_3); __Pyx_INCREF(__pyx_t_4); __pyx_t_3++;
+      #else
+      __pyx_t_4 = PySequence_ITEM(__pyx_t_5, __pyx_t_3); __pyx_t_3++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 82; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+      #endif
+    } else if (!__pyx_t_6 && PyTuple_CheckExact(__pyx_t_5)) {
+      if (__pyx_t_3 >= PyTuple_GET_SIZE(__pyx_t_5)) break;
+      #if CYTHON_COMPILING_IN_CPYTHON
+      __pyx_t_4 = PyTuple_GET_ITEM(__pyx_t_5, __pyx_t_3); __Pyx_INCREF(__pyx_t_4); __pyx_t_3++;
+      #else
+      __pyx_t_4 = PySequence_ITEM(__pyx_t_5, __pyx_t_3); __pyx_t_3++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 82; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+      #endif
+    } else {
+      __pyx_t_4 = __pyx_t_6(__pyx_t_5);
+      if (unlikely(!__pyx_t_4)) {
+        if (PyErr_Occurred()) {
+          if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
+          else {__pyx_filename = __pyx_f[13]; __pyx_lineno = 82; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        }
+        break;
+      }
+      __Pyx_GOTREF(__pyx_t_4);
+    }
+    __Pyx_XDECREF(__pyx_v_f);
+    __pyx_v_f = __pyx_t_4;
+    __pyx_t_4 = 0;
+
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":83
+ *         cdef float mlfe = 0, max_score = -1
+ *         for f in fphrase.words:
+ *             for e in ewords:             # <<<<<<<<<<<<<<
+ *                 score = self.ttable.get_score(f, e, 1)
+ *                 if score > max_score:
+ */
+    if (PyList_CheckExact(__pyx_v_ewords) || PyTuple_CheckExact(__pyx_v_ewords)) {
+      __pyx_t_4 = __pyx_v_ewords; __Pyx_INCREF(__pyx_t_4); __pyx_t_7 = 0;
+      __pyx_t_8 = NULL;
+    } else {
+      __pyx_t_7 = -1; __pyx_t_4 = PyObject_GetIter(__pyx_v_ewords); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 83; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_4);
+      __pyx_t_8 = Py_TYPE(__pyx_t_4)->tp_iternext;
+    }
+    for (;;) {
+      if (!__pyx_t_8 && PyList_CheckExact(__pyx_t_4)) {
+        if (__pyx_t_7 >= PyList_GET_SIZE(__pyx_t_4)) break;
+        #if CYTHON_COMPILING_IN_CPYTHON
+        __pyx_t_1 = PyList_GET_ITEM(__pyx_t_4, __pyx_t_7); __Pyx_INCREF(__pyx_t_1); __pyx_t_7++;
+        #else
+        __pyx_t_1 = PySequence_ITEM(__pyx_t_4, __pyx_t_7); __pyx_t_7++; if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 83; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+        #endif
+      } else if (!__pyx_t_8 && PyTuple_CheckExact(__pyx_t_4)) {
+        if (__pyx_t_7 >= PyTuple_GET_SIZE(__pyx_t_4)) break;
+        #if CYTHON_COMPILING_IN_CPYTHON
+        __pyx_t_1 = PyTuple_GET_ITEM(__pyx_t_4, __pyx_t_7); __Pyx_INCREF(__pyx_t_1); __pyx_t_7++;
+        #else
+        __pyx_t_1 = PySequence_ITEM(__pyx_t_4, __pyx_t_7); __pyx_t_7++; if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 83; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+        #endif
+      } else {
+        __pyx_t_1 = __pyx_t_8(__pyx_t_4);
+        if (unlikely(!__pyx_t_1)) {
+          if (PyErr_Occurred()) {
+            if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
+            else {__pyx_filename = __pyx_f[13]; __pyx_lineno = 83; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          }
+          break;
+        }
+        __Pyx_GOTREF(__pyx_t_1);
+      }
+      __Pyx_XDECREF(__pyx_v_e);
+      __pyx_v_e = __pyx_t_1;
+      __pyx_t_1 = 0;
+
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":84
+ *         for f in fphrase.words:
+ *             for e in ewords:
+ *                 score = self.ttable.get_score(f, e, 1)             # <<<<<<<<<<<<<<
+ *                 if score > max_score:
+ *                     max_score = score
+ */
+      __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_v_self->ttable), __pyx_n_s__get_score); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 84; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_1);
+      __pyx_t_2 = PyTuple_New(3); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 84; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_2);
+      __Pyx_INCREF(__pyx_v_f);
+      PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_v_f);
+      __Pyx_GIVEREF(__pyx_v_f);
+      __Pyx_INCREF(__pyx_v_e);
+      PyTuple_SET_ITEM(__pyx_t_2, 1, __pyx_v_e);
+      __Pyx_GIVEREF(__pyx_v_e);
+      __Pyx_INCREF(__pyx_int_1);
+      PyTuple_SET_ITEM(__pyx_t_2, 2, __pyx_int_1);
+      __Pyx_GIVEREF(__pyx_int_1);
+      __pyx_t_9 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 84; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_9);
+      __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+      __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
+      __Pyx_XDECREF(__pyx_v_score);
+      __pyx_v_score = __pyx_t_9;
+      __pyx_t_9 = 0;
+
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":85
+ *             for e in ewords:
+ *                 score = self.ttable.get_score(f, e, 1)
+ *                 if score > max_score:             # <<<<<<<<<<<<<<
+ *                     max_score = score
+ *             mlfe += -log10(max_score) if max_score > 0 else MAXSCORE
+ */
+      __pyx_t_9 = PyFloat_FromDouble(__pyx_v_max_score); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 85; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_9);
+      __pyx_t_2 = PyObject_RichCompare(__pyx_v_score, __pyx_t_9, Py_GT); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 85; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_2);
+      __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+      __pyx_t_10 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_10 < 0)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 85; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+      if (__pyx_t_10) {
+
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":86
+ *                 score = self.ttable.get_score(f, e, 1)
+ *                 if score > max_score:
+ *                     max_score = score             # <<<<<<<<<<<<<<
+ *             mlfe += -log10(max_score) if max_score > 0 else MAXSCORE
+ *         scores.set(self.fid[MaxLexFgivenE], mlfe)
+ */
+        __pyx_t_11 = __pyx_PyFloat_AsFloat(__pyx_v_score); if (unlikely((__pyx_t_11 == (float)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 86; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_v_max_score = __pyx_t_11;
+        goto __pyx_L7;
+      }
+      __pyx_L7:;
+    }
+    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":87
+ *                 if score > max_score:
+ *                     max_score = score
+ *             mlfe += -log10(max_score) if max_score > 0 else MAXSCORE             # <<<<<<<<<<<<<<
+ *         scores.set(self.fid[MaxLexFgivenE], mlfe)
+ * 
+ */
+    __pyx_t_4 = PyFloat_FromDouble(__pyx_v_mlfe); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 87; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_4);
+    if ((__pyx_v_max_score > 0.0)) {
+      __pyx_t_9 = PyFloat_FromDouble((-log10(__pyx_v_max_score))); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 87; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_9);
+      __pyx_t_2 = __pyx_t_9;
+      __pyx_t_9 = 0;
+    } else {
+      __pyx_t_9 = __Pyx_GetName(__pyx_m, __pyx_n_s__MAXSCORE); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 87; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_9);
+      __pyx_t_2 = __pyx_t_9;
+      __pyx_t_9 = 0;
+    }
+    __pyx_t_9 = PyNumber_InPlaceAdd(__pyx_t_4, __pyx_t_2); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 87; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_9);
+    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+    __pyx_t_11 = __pyx_PyFloat_AsFloat(__pyx_t_9); if (unlikely((__pyx_t_11 == (float)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 87; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+    __pyx_v_mlfe = __pyx_t_11;
+  }
+  __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":88
+ *                     max_score = score
+ *             mlfe += -log10(max_score) if max_score > 0 else MAXSCORE
+ *         scores.set(self.fid[MaxLexFgivenE], mlfe)             # <<<<<<<<<<<<<<
+ * 
+ *         # MaxLexEgivenF TODO same
+ */
+  __pyx_t_5 = PyObject_GetAttr(((PyObject *)__pyx_v_scores), __pyx_n_s__set); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 88; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_5);
+  __pyx_t_9 = __Pyx_GetName(__pyx_m, __pyx_n_s__MaxLexFgivenE); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 88; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_9);
+  __pyx_t_3 = __Pyx_PyIndex_AsSsize_t(__pyx_t_9); if (unlikely((__pyx_t_3 == (Py_ssize_t)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 88; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+  __pyx_t_9 = PyInt_FromLong((__pyx_v_self->fid[__pyx_t_3])); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 88; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_9);
+  __pyx_t_2 = PyFloat_FromDouble(__pyx_v_mlfe); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 88; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __pyx_t_4 = PyTuple_New(2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 88; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  PyTuple_SET_ITEM(__pyx_t_4, 0, __pyx_t_9);
+  __Pyx_GIVEREF(__pyx_t_9);
+  PyTuple_SET_ITEM(__pyx_t_4, 1, __pyx_t_2);
+  __Pyx_GIVEREF(__pyx_t_2);
+  __pyx_t_9 = 0;
+  __pyx_t_2 = 0;
+  __pyx_t_2 = PyObject_Call(__pyx_t_5, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 88; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
+  __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":91
+ * 
+ *         # MaxLexEgivenF TODO same
+ *         fwords = fphrase.words             # <<<<<<<<<<<<<<
+ *         fwords.append('NULL')
+ *         cdef float mlef = 0
+ */
+  __pyx_t_2 = PyObject_GetAttr(((PyObject *)__pyx_v_fphrase), __pyx_n_s__words); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 91; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __pyx_v_fwords = __pyx_t_2;
+  __pyx_t_2 = 0;
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":92
+ *         # MaxLexEgivenF TODO same
+ *         fwords = fphrase.words
+ *         fwords.append('NULL')             # <<<<<<<<<<<<<<
+ *         cdef float mlef = 0
+ *         max_score = -1
+ */
+  __pyx_t_2 = __Pyx_PyObject_Append(__pyx_v_fwords, ((PyObject *)__pyx_n_s__NULL)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 92; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":93
+ *         fwords = fphrase.words
+ *         fwords.append('NULL')
+ *         cdef float mlef = 0             # <<<<<<<<<<<<<<
+ *         max_score = -1
+ *         for e in ephrase.words:
+ */
+  __pyx_v_mlef = 0.0;
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":94
+ *         fwords.append('NULL')
+ *         cdef float mlef = 0
+ *         max_score = -1             # <<<<<<<<<<<<<<
+ *         for e in ephrase.words:
+ *             for f in fwords:
+ */
+  __pyx_v_max_score = -1.0;
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":95
+ *         cdef float mlef = 0
+ *         max_score = -1
+ *         for e in ephrase.words:             # <<<<<<<<<<<<<<
+ *             for f in fwords:
+ *                 score = self.ttable.get_score(f, e, 0)
+ */
+  __pyx_t_2 = PyObject_GetAttr(((PyObject *)__pyx_v_ephrase), __pyx_n_s__words); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 95; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  if (PyList_CheckExact(__pyx_t_2) || PyTuple_CheckExact(__pyx_t_2)) {
+    __pyx_t_4 = __pyx_t_2; __Pyx_INCREF(__pyx_t_4); __pyx_t_3 = 0;
+    __pyx_t_6 = NULL;
+  } else {
+    __pyx_t_3 = -1; __pyx_t_4 = PyObject_GetIter(__pyx_t_2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 95; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_4);
+    __pyx_t_6 = Py_TYPE(__pyx_t_4)->tp_iternext;
+  }
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+  for (;;) {
+    if (!__pyx_t_6 && PyList_CheckExact(__pyx_t_4)) {
+      if (__pyx_t_3 >= PyList_GET_SIZE(__pyx_t_4)) break;
+      #if CYTHON_COMPILING_IN_CPYTHON
+      __pyx_t_2 = PyList_GET_ITEM(__pyx_t_4, __pyx_t_3); __Pyx_INCREF(__pyx_t_2); __pyx_t_3++;
+      #else
+      __pyx_t_2 = PySequence_ITEM(__pyx_t_4, __pyx_t_3); __pyx_t_3++; if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 95; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+      #endif
+    } else if (!__pyx_t_6 && PyTuple_CheckExact(__pyx_t_4)) {
+      if (__pyx_t_3 >= PyTuple_GET_SIZE(__pyx_t_4)) break;
+      #if CYTHON_COMPILING_IN_CPYTHON
+      __pyx_t_2 = PyTuple_GET_ITEM(__pyx_t_4, __pyx_t_3); __Pyx_INCREF(__pyx_t_2); __pyx_t_3++;
+      #else
+      __pyx_t_2 = PySequence_ITEM(__pyx_t_4, __pyx_t_3); __pyx_t_3++; if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 95; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+      #endif
+    } else {
+      __pyx_t_2 = __pyx_t_6(__pyx_t_4);
+      if (unlikely(!__pyx_t_2)) {
+        if (PyErr_Occurred()) {
+          if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
+          else {__pyx_filename = __pyx_f[13]; __pyx_lineno = 95; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        }
+        break;
+      }
+      __Pyx_GOTREF(__pyx_t_2);
+    }
+    __Pyx_XDECREF(__pyx_v_e);
+    __pyx_v_e = __pyx_t_2;
+    __pyx_t_2 = 0;
+
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":96
+ *         max_score = -1
+ *         for e in ephrase.words:
+ *             for f in fwords:             # <<<<<<<<<<<<<<
+ *                 score = self.ttable.get_score(f, e, 0)
+ *                 if score > max_score:
+ */
+    if (PyList_CheckExact(__pyx_v_fwords) || PyTuple_CheckExact(__pyx_v_fwords)) {
+      __pyx_t_2 = __pyx_v_fwords; __Pyx_INCREF(__pyx_t_2); __pyx_t_7 = 0;
+      __pyx_t_8 = NULL;
+    } else {
+      __pyx_t_7 = -1; __pyx_t_2 = PyObject_GetIter(__pyx_v_fwords); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 96; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_2);
+      __pyx_t_8 = Py_TYPE(__pyx_t_2)->tp_iternext;
+    }
+    for (;;) {
+      if (!__pyx_t_8 && PyList_CheckExact(__pyx_t_2)) {
+        if (__pyx_t_7 >= PyList_GET_SIZE(__pyx_t_2)) break;
+        #if CYTHON_COMPILING_IN_CPYTHON
+        __pyx_t_5 = PyList_GET_ITEM(__pyx_t_2, __pyx_t_7); __Pyx_INCREF(__pyx_t_5); __pyx_t_7++;
+        #else
+        __pyx_t_5 = PySequence_ITEM(__pyx_t_2, __pyx_t_7); __pyx_t_7++; if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 96; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+        #endif
+      } else if (!__pyx_t_8 && PyTuple_CheckExact(__pyx_t_2)) {
+        if (__pyx_t_7 >= PyTuple_GET_SIZE(__pyx_t_2)) break;
+        #if CYTHON_COMPILING_IN_CPYTHON
+        __pyx_t_5 = PyTuple_GET_ITEM(__pyx_t_2, __pyx_t_7); __Pyx_INCREF(__pyx_t_5); __pyx_t_7++;
+        #else
+        __pyx_t_5 = PySequence_ITEM(__pyx_t_2, __pyx_t_7); __pyx_t_7++; if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 96; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+        #endif
+      } else {
+        __pyx_t_5 = __pyx_t_8(__pyx_t_2);
+        if (unlikely(!__pyx_t_5)) {
+          if (PyErr_Occurred()) {
+            if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
+            else {__pyx_filename = __pyx_f[13]; __pyx_lineno = 96; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          }
+          break;
+        }
+        __Pyx_GOTREF(__pyx_t_5);
+      }
+      __Pyx_XDECREF(__pyx_v_f);
+      __pyx_v_f = __pyx_t_5;
+      __pyx_t_5 = 0;
+
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":97
+ *         for e in ephrase.words:
+ *             for f in fwords:
+ *                 score = self.ttable.get_score(f, e, 0)             # <<<<<<<<<<<<<<
+ *                 if score > max_score:
+ *                     max_score = score
+ */
+      __pyx_t_5 = PyObject_GetAttr(((PyObject *)__pyx_v_self->ttable), __pyx_n_s__get_score); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 97; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_5);
+      __pyx_t_9 = PyTuple_New(3); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 97; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_9);
+      __Pyx_INCREF(__pyx_v_f);
+      PyTuple_SET_ITEM(__pyx_t_9, 0, __pyx_v_f);
+      __Pyx_GIVEREF(__pyx_v_f);
+      __Pyx_INCREF(__pyx_v_e);
+      PyTuple_SET_ITEM(__pyx_t_9, 1, __pyx_v_e);
+      __Pyx_GIVEREF(__pyx_v_e);
+      __Pyx_INCREF(__pyx_int_0);
+      PyTuple_SET_ITEM(__pyx_t_9, 2, __pyx_int_0);
+      __Pyx_GIVEREF(__pyx_int_0);
+      __pyx_t_1 = PyObject_Call(__pyx_t_5, ((PyObject *)__pyx_t_9), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 97; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_1);
+      __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
+      __Pyx_DECREF(((PyObject *)__pyx_t_9)); __pyx_t_9 = 0;
+      __Pyx_XDECREF(__pyx_v_score);
+      __pyx_v_score = __pyx_t_1;
+      __pyx_t_1 = 0;
+
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":98
+ *             for f in fwords:
+ *                 score = self.ttable.get_score(f, e, 0)
+ *                 if score > max_score:             # <<<<<<<<<<<<<<
+ *                     max_score = score
+ *             mlef += -log10(max_score) if max_score > 0 else MAXSCORE
+ */
+      __pyx_t_1 = PyFloat_FromDouble(__pyx_v_max_score); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 98; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_1);
+      __pyx_t_9 = PyObject_RichCompare(__pyx_v_score, __pyx_t_1, Py_GT); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 98; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_9);
+      __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+      __pyx_t_10 = __Pyx_PyObject_IsTrue(__pyx_t_9); if (unlikely(__pyx_t_10 < 0)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 98; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+      if (__pyx_t_10) {
+
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":99
+ *                 score = self.ttable.get_score(f, e, 0)
+ *                 if score > max_score:
+ *                     max_score = score             # <<<<<<<<<<<<<<
+ *             mlef += -log10(max_score) if max_score > 0 else MAXSCORE
+ *         scores.set(self.fid[MaxLexEgivenF], mlef)
+ */
+        __pyx_t_11 = __pyx_PyFloat_AsFloat(__pyx_v_score); if (unlikely((__pyx_t_11 == (float)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 99; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_v_max_score = __pyx_t_11;
+        goto __pyx_L12;
+      }
+      __pyx_L12:;
+    }
+    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":100
+ *                 if score > max_score:
+ *                     max_score = score
+ *             mlef += -log10(max_score) if max_score > 0 else MAXSCORE             # <<<<<<<<<<<<<<
+ *         scores.set(self.fid[MaxLexEgivenF], mlef)
+ * 
+ */
+    __pyx_t_2 = PyFloat_FromDouble(__pyx_v_mlef); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 100; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_2);
+    if ((__pyx_v_max_score > 0.0)) {
+      __pyx_t_1 = PyFloat_FromDouble((-log10(__pyx_v_max_score))); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 100; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_1);
+      __pyx_t_9 = __pyx_t_1;
+      __pyx_t_1 = 0;
+    } else {
+      __pyx_t_1 = __Pyx_GetName(__pyx_m, __pyx_n_s__MAXSCORE); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 100; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_1);
+      __pyx_t_9 = __pyx_t_1;
+      __pyx_t_1 = 0;
+    }
+    __pyx_t_1 = PyNumber_InPlaceAdd(__pyx_t_2, __pyx_t_9); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 100; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_1);
+    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+    __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+    __pyx_t_11 = __pyx_PyFloat_AsFloat(__pyx_t_1); if (unlikely((__pyx_t_11 == (float)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 100; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+    __pyx_v_mlef = __pyx_t_11;
+  }
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":101
+ *                     max_score = score
+ *             mlef += -log10(max_score) if max_score > 0 else MAXSCORE
+ *         scores.set(self.fid[MaxLexEgivenF], mlef)             # <<<<<<<<<<<<<<
+ * 
+ *         # IsSingletonF
+ */
+  __pyx_t_4 = PyObject_GetAttr(((PyObject *)__pyx_v_scores), __pyx_n_s__set); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 101; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __pyx_t_1 = __Pyx_GetName(__pyx_m, __pyx_n_s__MaxLexEgivenF); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 101; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_1);
+  __pyx_t_3 = __Pyx_PyIndex_AsSsize_t(__pyx_t_1); if (unlikely((__pyx_t_3 == (Py_ssize_t)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 101; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_1 = PyInt_FromLong((__pyx_v_self->fid[__pyx_t_3])); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 101; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_1);
+  __pyx_t_9 = PyFloat_FromDouble(__pyx_v_mlef); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 101; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_9);
+  __pyx_t_2 = PyTuple_New(2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 101; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_t_1);
+  __Pyx_GIVEREF(__pyx_t_1);
+  PyTuple_SET_ITEM(__pyx_t_2, 1, __pyx_t_9);
+  __Pyx_GIVEREF(__pyx_t_9);
+  __pyx_t_1 = 0;
+  __pyx_t_9 = 0;
+  __pyx_t_9 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 101; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_9);
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+  __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
+  __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":104
+ * 
+ *         # IsSingletonF
+ *         scores.set(self.fid[IsSingletonF], (fcount == 1))             # <<<<<<<<<<<<<<
+ * 
+ *         # IsSingletonFE
+ */
+  __pyx_t_9 = PyObject_GetAttr(((PyObject *)__pyx_v_scores), __pyx_n_s__set); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 104; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_9);
+  __pyx_t_2 = __Pyx_GetName(__pyx_m, __pyx_n_s__IsSingletonF); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 104; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __pyx_t_3 = __Pyx_PyIndex_AsSsize_t(__pyx_t_2); if (unlikely((__pyx_t_3 == (Py_ssize_t)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 104; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+  __pyx_t_2 = PyInt_FromLong((__pyx_v_self->fid[__pyx_t_3])); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 104; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __pyx_t_4 = __Pyx_PyBool_FromLong((__pyx_v_fcount == 1)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 104; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __pyx_t_1 = PyTuple_New(2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 104; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_1);
+  PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_t_2);
+  __Pyx_GIVEREF(__pyx_t_2);
+  PyTuple_SET_ITEM(__pyx_t_1, 1, __pyx_t_4);
+  __Pyx_GIVEREF(__pyx_t_4);
+  __pyx_t_2 = 0;
+  __pyx_t_4 = 0;
+  __pyx_t_4 = PyObject_Call(__pyx_t_9, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 104; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+  __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":107
+ * 
+ *         # IsSingletonFE
+ *         scores.set(self.fid[IsSingletonFE], (paircount == 1))             # <<<<<<<<<<<<<<
+ * 
+ *         return scores
+ */
+  __pyx_t_4 = PyObject_GetAttr(((PyObject *)__pyx_v_scores), __pyx_n_s__set); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 107; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __pyx_t_1 = __Pyx_GetName(__pyx_m, __pyx_n_s__IsSingletonFE); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 107; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_1);
+  __pyx_t_3 = __Pyx_PyIndex_AsSsize_t(__pyx_t_1); if (unlikely((__pyx_t_3 == (Py_ssize_t)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 107; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_1 = PyInt_FromLong((__pyx_v_self->fid[__pyx_t_3])); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 107; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_1);
+  __pyx_t_9 = __Pyx_PyBool_FromLong((__pyx_v_paircount == 1)); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 107; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_9);
+  __pyx_t_2 = PyTuple_New(2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 107; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_t_1);
+  __Pyx_GIVEREF(__pyx_t_1);
+  PyTuple_SET_ITEM(__pyx_t_2, 1, __pyx_t_9);
+  __Pyx_GIVEREF(__pyx_t_9);
+  __pyx_t_1 = 0;
+  __pyx_t_9 = 0;
+  __pyx_t_9 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 107; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_9);
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+  __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
+  __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":109
+ *         scores.set(self.fid[IsSingletonFE], (paircount == 1))
+ * 
+ *         return scores             # <<<<<<<<<<<<<<
+ */
+  __Pyx_XDECREF(((PyObject *)__pyx_r));
+  __Pyx_INCREF(((PyObject *)__pyx_v_scores));
+  __pyx_r = __pyx_v_scores;
+  goto __pyx_L0;
+
+  __pyx_r = ((struct __pyx_obj_3_sa_FeatureVector *)Py_None); __Pyx_INCREF(Py_None);
+  goto __pyx_L0;
+  __pyx_L1_error:;
+  __Pyx_XDECREF(__pyx_t_1);
+  __Pyx_XDECREF(__pyx_t_2);
+  __Pyx_XDECREF(__pyx_t_4);
+  __Pyx_XDECREF(__pyx_t_5);
+  __Pyx_XDECREF(__pyx_t_9);
+  __Pyx_AddTraceback("_sa.DefaultScorer.score", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __pyx_r = 0;
+  __pyx_L0:;
+  __Pyx_XDECREF((PyObject *)__pyx_v_scores);
+  __Pyx_XDECREF(__pyx_v_ewords);
+  __Pyx_XDECREF(__pyx_v_f);
+  __Pyx_XDECREF(__pyx_v_e);
+  __Pyx_XDECREF(__pyx_v_score);
+  __Pyx_XDECREF(__pyx_v_fwords);
+  __Pyx_XGIVEREF((PyObject *)__pyx_r);
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+
+/* Python wrapper */
 static int __pyx_pw_3_sa_8TrieNode_1__cinit__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
 static int __pyx_pw_3_sa_8TrieNode_1__cinit__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   int __pyx_r;
@@ -34384,7 +36253,7 @@ static int __pyx_pw_3_sa_8TrieNode_1__cinit__(PyObject *__pyx_v_self, PyObject *
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":21
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":23
  *     cdef public children
  * 
  *     def __cinit__(self):             # <<<<<<<<<<<<<<
@@ -34401,14 +36270,14 @@ static int __pyx_pf_3_sa_8TrieNode___cinit__(struct __pyx_obj_3_sa_TrieNode *__p
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__cinit__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":22
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":24
  * 
  *     def __cinit__(self):
  *         self.children = {}             # <<<<<<<<<<<<<<
  * 
  * cdef class ExtendedTrieNode(TrieNode):
  */
-  __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 22; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 24; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_1));
   __Pyx_GIVEREF(((PyObject *)__pyx_t_1));
   __Pyx_GOTREF(__pyx_v_self->children);
@@ -34438,7 +36307,7 @@ static PyObject *__pyx_pw_3_sa_8TrieNode_8children_1__get__(PyObject *__pyx_v_se
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":19
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":21
  * 
  * cdef class TrieNode:
  *     cdef public children             # <<<<<<<<<<<<<<
@@ -34527,7 +36396,7 @@ static int __pyx_pw_3_sa_16ExtendedTrieNode_1__cinit__(PyObject *__pyx_v_self, P
     static PyObject **__pyx_pyargnames[] = {&__pyx_n_s__phrase,&__pyx_n_s__phrase_location,&__pyx_n_s__suffix_link,0};
     PyObject* values[3] = {0,0,0};
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":29
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":31
  *     cdef public suffix_link
  * 
  *     def __cinit__(self, phrase=None, phrase_location=None, suffix_link=None):             # <<<<<<<<<<<<<<
@@ -34566,7 +36435,7 @@ static int __pyx_pw_3_sa_16ExtendedTrieNode_1__cinit__(PyObject *__pyx_v_self, P
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "__cinit__") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 29; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "__cinit__") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 31; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else {
       switch (PyTuple_GET_SIZE(__pyx_args)) {
@@ -34583,7 +36452,7 @@ static int __pyx_pw_3_sa_16ExtendedTrieNode_1__cinit__(PyObject *__pyx_v_self, P
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("__cinit__", 0, 0, 3, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 29; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+  __Pyx_RaiseArgtupleInvalid("__cinit__", 0, 0, 3, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 31; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_AddTraceback("_sa.ExtendedTrieNode.__cinit__", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -34599,7 +36468,7 @@ static int __pyx_pf_3_sa_16ExtendedTrieNode___cinit__(struct __pyx_obj_3_sa_Exte
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__cinit__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":30
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":32
  * 
  *     def __cinit__(self, phrase=None, phrase_location=None, suffix_link=None):
  *         self.phrase = phrase             # <<<<<<<<<<<<<<
@@ -34612,7 +36481,7 @@ static int __pyx_pf_3_sa_16ExtendedTrieNode___cinit__(struct __pyx_obj_3_sa_Exte
   __Pyx_DECREF(__pyx_v_self->phrase);
   __pyx_v_self->phrase = __pyx_v_phrase;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":31
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":33
  *     def __cinit__(self, phrase=None, phrase_location=None, suffix_link=None):
  *         self.phrase = phrase
  *         self.phrase_location = phrase_location             # <<<<<<<<<<<<<<
@@ -34625,7 +36494,7 @@ static int __pyx_pf_3_sa_16ExtendedTrieNode___cinit__(struct __pyx_obj_3_sa_Exte
   __Pyx_DECREF(__pyx_v_self->phrase_location);
   __pyx_v_self->phrase_location = __pyx_v_phrase_location;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":32
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":34
  *         self.phrase = phrase
  *         self.phrase_location = phrase_location
  *         self.suffix_link = suffix_link             # <<<<<<<<<<<<<<
@@ -34654,7 +36523,7 @@ static PyObject *__pyx_pw_3_sa_16ExtendedTrieNode_6phrase_1__get__(PyObject *__p
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":25
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":27
  * 
  * cdef class ExtendedTrieNode(TrieNode):
  *     cdef public phrase             # <<<<<<<<<<<<<<
@@ -34741,7 +36610,7 @@ static PyObject *__pyx_pw_3_sa_16ExtendedTrieNode_15phrase_location_1__get__(PyO
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":26
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":28
  * cdef class ExtendedTrieNode(TrieNode):
  *     cdef public phrase
  *     cdef public phrase_location             # <<<<<<<<<<<<<<
@@ -34828,7 +36697,7 @@ static PyObject *__pyx_pw_3_sa_16ExtendedTrieNode_11suffix_link_1__get__(PyObjec
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":27
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":29
  *     cdef public phrase
  *     cdef public phrase_location
  *     cdef public suffix_link             # <<<<<<<<<<<<<<
@@ -34914,7 +36783,7 @@ static int __pyx_pw_3_sa_9TrieTable_1__cinit__(PyObject *__pyx_v_self, PyObject
   {
     static PyObject **__pyx_pyargnames[] = {&__pyx_n_s__extended,0};
     PyObject* values[1] = {0};
-    values[0] = __pyx_k_99;
+    values[0] = __pyx_k_101;
     if (unlikely(__pyx_kwds)) {
       Py_ssize_t kw_args;
       const Py_ssize_t pos_args = PyTuple_GET_SIZE(__pyx_args);
@@ -34932,7 +36801,7 @@ static int __pyx_pw_3_sa_9TrieTable_1__cinit__(PyObject *__pyx_v_self, PyObject
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "__cinit__") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 39; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "__cinit__") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 41; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else {
       switch (PyTuple_GET_SIZE(__pyx_args)) {
@@ -34945,7 +36814,7 @@ static int __pyx_pw_3_sa_9TrieTable_1__cinit__(PyObject *__pyx_v_self, PyObject
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("__cinit__", 0, 0, 1, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 39; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+  __Pyx_RaiseArgtupleInvalid("__cinit__", 0, 0, 1, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 41; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_AddTraceback("_sa.TrieTable.__cinit__", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -34956,7 +36825,7 @@ static int __pyx_pw_3_sa_9TrieTable_1__cinit__(PyObject *__pyx_v_self, PyObject
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":39
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":41
  *     cdef public int count
  *     cdef public root
  *     def __cinit__(self, extended=False):             # <<<<<<<<<<<<<<
@@ -34975,7 +36844,7 @@ static int __pyx_pf_3_sa_9TrieTable___cinit__(struct __pyx_obj_3_sa_TrieTable *_
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__cinit__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":40
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":42
  *     cdef public root
  *     def __cinit__(self, extended=False):
  *         self.count = 0             # <<<<<<<<<<<<<<
@@ -34984,34 +36853,34 @@ static int __pyx_pf_3_sa_9TrieTable___cinit__(struct __pyx_obj_3_sa_TrieTable *_
  */
   __pyx_v_self->count = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":41
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":43
  *     def __cinit__(self, extended=False):
  *         self.count = 0
  *         self.extended = extended             # <<<<<<<<<<<<<<
  *         if extended:
  *             self.root = ExtendedTrieNode()
  */
-  __pyx_t_1 = __Pyx_PyInt_AsInt(__pyx_v_extended); if (unlikely((__pyx_t_1 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 41; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_PyInt_AsInt(__pyx_v_extended); if (unlikely((__pyx_t_1 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 43; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_v_self->extended = __pyx_t_1;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":42
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":44
  *         self.count = 0
  *         self.extended = extended
  *         if extended:             # <<<<<<<<<<<<<<
  *             self.root = ExtendedTrieNode()
  *         else:
  */
-  __pyx_t_2 = __Pyx_PyObject_IsTrue(__pyx_v_extended); if (unlikely(__pyx_t_2 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 42; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = __Pyx_PyObject_IsTrue(__pyx_v_extended); if (unlikely(__pyx_t_2 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 44; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   if (__pyx_t_2) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":43
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":45
  *         self.extended = extended
  *         if extended:
  *             self.root = ExtendedTrieNode()             # <<<<<<<<<<<<<<
  *         else:
  *             self.root = TrieNode()
  */
-    __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_ExtendedTrieNode)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 43; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_ExtendedTrieNode)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 45; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_GIVEREF(__pyx_t_3);
     __Pyx_GOTREF(__pyx_v_self->root);
@@ -35022,14 +36891,14 @@ static int __pyx_pf_3_sa_9TrieTable___cinit__(struct __pyx_obj_3_sa_TrieTable *_
   }
   /*else*/ {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":45
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":47
  *             self.root = ExtendedTrieNode()
  *         else:
  *             self.root = TrieNode()             # <<<<<<<<<<<<<<
  * 
  * # linked list structure for storing matches in BaselineRuleFactory
  */
-    __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_TrieNode)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 45; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_TrieNode)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 47; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_GIVEREF(__pyx_t_3);
     __Pyx_GOTREF(__pyx_v_self->root);
@@ -35061,7 +36930,7 @@ static PyObject *__pyx_pw_3_sa_9TrieTable_8extended_1__get__(PyObject *__pyx_v_s
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":36
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":38
  * 
  * cdef class TrieTable:
  *     cdef public int extended             # <<<<<<<<<<<<<<
@@ -35078,7 +36947,7 @@ static PyObject *__pyx_pf_3_sa_9TrieTable_8extended___get__(struct __pyx_obj_3_s
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__get__", 0);
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = PyInt_FromLong(__pyx_v_self->extended); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 36; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyInt_FromLong(__pyx_v_self->extended); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 38; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_r = __pyx_t_1;
   __pyx_t_1 = 0;
@@ -35115,7 +36984,7 @@ static int __pyx_pf_3_sa_9TrieTable_8extended_2__set__(struct __pyx_obj_3_sa_Tri
   const char *__pyx_filename = NULL;
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__set__", 0);
-  __pyx_t_1 = __Pyx_PyInt_AsInt(__pyx_v_value); if (unlikely((__pyx_t_1 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 36; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_PyInt_AsInt(__pyx_v_value); if (unlikely((__pyx_t_1 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 38; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_v_self->extended = __pyx_t_1;
 
   __pyx_r = 0;
@@ -35139,7 +37008,7 @@ static PyObject *__pyx_pw_3_sa_9TrieTable_5count_1__get__(PyObject *__pyx_v_self
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":37
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":39
  * cdef class TrieTable:
  *     cdef public int extended
  *     cdef public int count             # <<<<<<<<<<<<<<
@@ -35156,7 +37025,7 @@ static PyObject *__pyx_pf_3_sa_9TrieTable_5count___get__(struct __pyx_obj_3_sa_T
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__get__", 0);
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = PyInt_FromLong(__pyx_v_self->count); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 37; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyInt_FromLong(__pyx_v_self->count); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 39; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_r = __pyx_t_1;
   __pyx_t_1 = 0;
@@ -35193,7 +37062,7 @@ static int __pyx_pf_3_sa_9TrieTable_5count_2__set__(struct __pyx_obj_3_sa_TrieTa
   const char *__pyx_filename = NULL;
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__set__", 0);
-  __pyx_t_1 = __Pyx_PyInt_AsInt(__pyx_v_value); if (unlikely((__pyx_t_1 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 37; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_PyInt_AsInt(__pyx_v_value); if (unlikely((__pyx_t_1 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 39; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_v_self->count = __pyx_t_1;
 
   __pyx_r = 0;
@@ -35217,7 +37086,7 @@ static PyObject *__pyx_pw_3_sa_9TrieTable_4root_1__get__(PyObject *__pyx_v_self)
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":38
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":40
  *     cdef public int extended
  *     cdef public int count
  *     cdef public root             # <<<<<<<<<<<<<<
@@ -35293,7 +37162,7 @@ static int __pyx_pf_3_sa_9TrieTable_4root_4__del__(struct __pyx_obj_3_sa_TrieTab
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":65
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":67
  * 
  *     # returns true if sent_id is contained
  *     cdef int contains(self, int sent_id):             # <<<<<<<<<<<<<<
@@ -35306,7 +37175,7 @@ static int __pyx_f_3_sa_14PhraseLocation_contains(CYTHON_UNUSED struct __pyx_obj
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("contains", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":66
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":68
  *     # returns true if sent_id is contained
  *     cdef int contains(self, int sent_id):
  *         return 1             # <<<<<<<<<<<<<<
@@ -35338,7 +37207,7 @@ static int __pyx_pw_3_sa_14PhraseLocation_1__cinit__(PyObject *__pyx_v_self, PyO
     static PyObject **__pyx_pyargnames[] = {&__pyx_n_s__sa_low,&__pyx_n_s__sa_high,&__pyx_n_s__arr_low,&__pyx_n_s__arr_high,&__pyx_n_s__arr,&__pyx_n_s__num_subpatterns,0};
     PyObject* values[6] = {0,0,0,0,0,0};
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":69
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":71
  * 
  *     def __cinit__(self, int sa_low=-1, int sa_high=-1, int arr_low=-1, int arr_high=-1,
  *             arr=None, int num_subpatterns=1):             # <<<<<<<<<<<<<<
@@ -35393,7 +37262,7 @@ static int __pyx_pw_3_sa_14PhraseLocation_1__cinit__(PyObject *__pyx_v_self, PyO
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "__cinit__") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 68; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "__cinit__") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 70; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else {
       switch (PyTuple_GET_SIZE(__pyx_args)) {
@@ -35408,35 +37277,35 @@ static int __pyx_pw_3_sa_14PhraseLocation_1__cinit__(PyObject *__pyx_v_self, PyO
       }
     }
     if (values[0]) {
-      __pyx_v_sa_low = __Pyx_PyInt_AsInt(values[0]); if (unlikely((__pyx_v_sa_low == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 68; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+      __pyx_v_sa_low = __Pyx_PyInt_AsInt(values[0]); if (unlikely((__pyx_v_sa_low == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 70; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
     } else {
       __pyx_v_sa_low = ((int)-1);
     }
     if (values[1]) {
-      __pyx_v_sa_high = __Pyx_PyInt_AsInt(values[1]); if (unlikely((__pyx_v_sa_high == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 68; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+      __pyx_v_sa_high = __Pyx_PyInt_AsInt(values[1]); if (unlikely((__pyx_v_sa_high == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 70; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
     } else {
       __pyx_v_sa_high = ((int)-1);
     }
     if (values[2]) {
-      __pyx_v_arr_low = __Pyx_PyInt_AsInt(values[2]); if (unlikely((__pyx_v_arr_low == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 68; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+      __pyx_v_arr_low = __Pyx_PyInt_AsInt(values[2]); if (unlikely((__pyx_v_arr_low == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 70; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
     } else {
       __pyx_v_arr_low = ((int)-1);
     }
     if (values[3]) {
-      __pyx_v_arr_high = __Pyx_PyInt_AsInt(values[3]); if (unlikely((__pyx_v_arr_high == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 68; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+      __pyx_v_arr_high = __Pyx_PyInt_AsInt(values[3]); if (unlikely((__pyx_v_arr_high == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 70; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
     } else {
       __pyx_v_arr_high = ((int)-1);
     }
     __pyx_v_arr = values[4];
     if (values[5]) {
-      __pyx_v_num_subpatterns = __Pyx_PyInt_AsInt(values[5]); if (unlikely((__pyx_v_num_subpatterns == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 69; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+      __pyx_v_num_subpatterns = __Pyx_PyInt_AsInt(values[5]); if (unlikely((__pyx_v_num_subpatterns == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 71; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
     } else {
       __pyx_v_num_subpatterns = ((int)1);
     }
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("__cinit__", 0, 0, 6, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 68; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+  __Pyx_RaiseArgtupleInvalid("__cinit__", 0, 0, 6, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 70; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_AddTraceback("_sa.PhraseLocation.__cinit__", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -35447,7 +37316,7 @@ static int __pyx_pw_3_sa_14PhraseLocation_1__cinit__(PyObject *__pyx_v_self, PyO
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":68
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":70
  *         return 1
  * 
  *     def __cinit__(self, int sa_low=-1, int sa_high=-1, int arr_low=-1, int arr_high=-1,             # <<<<<<<<<<<<<<
@@ -35463,7 +37332,7 @@ static int __pyx_pf_3_sa_14PhraseLocation___cinit__(struct __pyx_obj_3_sa_Phrase
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__cinit__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":70
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":72
  *     def __cinit__(self, int sa_low=-1, int sa_high=-1, int arr_low=-1, int arr_high=-1,
  *             arr=None, int num_subpatterns=1):
  *         self.sa_low = sa_low             # <<<<<<<<<<<<<<
@@ -35472,7 +37341,7 @@ static int __pyx_pf_3_sa_14PhraseLocation___cinit__(struct __pyx_obj_3_sa_Phrase
  */
   __pyx_v_self->sa_low = __pyx_v_sa_low;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":71
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":73
  *             arr=None, int num_subpatterns=1):
  *         self.sa_low = sa_low
  *         self.sa_high = sa_high             # <<<<<<<<<<<<<<
@@ -35481,7 +37350,7 @@ static int __pyx_pf_3_sa_14PhraseLocation___cinit__(struct __pyx_obj_3_sa_Phrase
  */
   __pyx_v_self->sa_high = __pyx_v_sa_high;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":72
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":74
  *         self.sa_low = sa_low
  *         self.sa_high = sa_high
  *         self.arr_low = arr_low             # <<<<<<<<<<<<<<
@@ -35490,7 +37359,7 @@ static int __pyx_pf_3_sa_14PhraseLocation___cinit__(struct __pyx_obj_3_sa_Phrase
  */
   __pyx_v_self->arr_low = __pyx_v_arr_low;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":73
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":75
  *         self.sa_high = sa_high
  *         self.arr_low = arr_low
  *         self.arr_high = arr_high             # <<<<<<<<<<<<<<
@@ -35499,21 +37368,21 @@ static int __pyx_pf_3_sa_14PhraseLocation___cinit__(struct __pyx_obj_3_sa_Phrase
  */
   __pyx_v_self->arr_high = __pyx_v_arr_high;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":74
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":76
  *         self.arr_low = arr_low
  *         self.arr_high = arr_high
  *         self.arr = arr             # <<<<<<<<<<<<<<
  *         self.num_subpatterns = num_subpatterns
  * 
  */
-  if (!(likely(((__pyx_v_arr) == Py_None) || likely(__Pyx_TypeTest(__pyx_v_arr, __pyx_ptype_3_sa_IntList))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 74; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (!(likely(((__pyx_v_arr) == Py_None) || likely(__Pyx_TypeTest(__pyx_v_arr, __pyx_ptype_3_sa_IntList))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 76; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_INCREF(__pyx_v_arr);
   __Pyx_GIVEREF(__pyx_v_arr);
   __Pyx_GOTREF(__pyx_v_self->arr);
   __Pyx_DECREF(((PyObject *)__pyx_v_self->arr));
   __pyx_v_self->arr = ((struct __pyx_obj_3_sa_IntList *)__pyx_v_arr);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":75
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":77
  *         self.arr_high = arr_high
  *         self.arr = arr
  *         self.num_subpatterns = num_subpatterns             # <<<<<<<<<<<<<<
@@ -35560,11 +37429,11 @@ static int __pyx_pw_3_sa_7Sampler_1__cinit__(PyObject *__pyx_v_self, PyObject *_
         case  1:
         if (likely((values[1] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__fsarray)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("__cinit__", 1, 2, 2, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 86; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("__cinit__", 1, 2, 2, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 87; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "__cinit__") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 86; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "__cinit__") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 87; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else if (PyTuple_GET_SIZE(__pyx_args) != 2) {
       goto __pyx_L5_argtuple_error;
@@ -35572,18 +37441,18 @@ static int __pyx_pw_3_sa_7Sampler_1__cinit__(PyObject *__pyx_v_self, PyObject *_
       values[0] = PyTuple_GET_ITEM(__pyx_args, 0);
       values[1] = PyTuple_GET_ITEM(__pyx_args, 1);
     }
-    __pyx_v_sample_size = __Pyx_PyInt_AsInt(values[0]); if (unlikely((__pyx_v_sample_size == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 86; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+    __pyx_v_sample_size = __Pyx_PyInt_AsInt(values[0]); if (unlikely((__pyx_v_sample_size == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 87; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
     __pyx_v_fsarray = ((struct __pyx_obj_3_sa_SuffixArray *)values[1]);
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("__cinit__", 1, 2, 2, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 86; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+  __Pyx_RaiseArgtupleInvalid("__cinit__", 1, 2, 2, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 87; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_AddTraceback("_sa.Sampler.__cinit__", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
   return -1;
   __pyx_L4_argument_unpacking_done:;
-  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_fsarray), __pyx_ptype_3_sa_SuffixArray, 1, "fsarray", 0))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 86; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_fsarray), __pyx_ptype_3_sa_SuffixArray, 1, "fsarray", 0))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 87; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_r = __pyx_pf_3_sa_7Sampler___cinit__(((struct __pyx_obj_3_sa_Sampler *)__pyx_v_self), __pyx_v_sample_size, __pyx_v_fsarray);
   goto __pyx_L0;
   __pyx_L1_error:;
@@ -35593,7 +37462,7 @@ static int __pyx_pw_3_sa_7Sampler_1__cinit__(PyObject *__pyx_v_self, PyObject *_
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":86
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":87
  *     cdef IntList sa
  * 
  *     def __cinit__(self, int sample_size, SuffixArray fsarray):             # <<<<<<<<<<<<<<
@@ -35613,7 +37482,7 @@ static int __pyx_pf_3_sa_7Sampler___cinit__(struct __pyx_obj_3_sa_Sampler *__pyx
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__cinit__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":87
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":88
  * 
  *     def __cinit__(self, int sample_size, SuffixArray fsarray):
  *         self.sample_size = sample_size             # <<<<<<<<<<<<<<
@@ -35622,7 +37491,7 @@ static int __pyx_pf_3_sa_7Sampler___cinit__(struct __pyx_obj_3_sa_Sampler *__pyx
  */
   __pyx_v_self->sample_size = __pyx_v_sample_size;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":88
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":89
  *     def __cinit__(self, int sample_size, SuffixArray fsarray):
  *         self.sample_size = sample_size
  *         self.sa = fsarray.sa             # <<<<<<<<<<<<<<
@@ -35635,7 +37504,7 @@ static int __pyx_pf_3_sa_7Sampler___cinit__(struct __pyx_obj_3_sa_Sampler *__pyx
   __Pyx_DECREF(((PyObject *)__pyx_v_self->sa));
   __pyx_v_self->sa = __pyx_v_fsarray->sa;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":89
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":90
  *         self.sample_size = sample_size
  *         self.sa = fsarray.sa
  *         if sample_size > 0:             # <<<<<<<<<<<<<<
@@ -35645,29 +37514,29 @@ static int __pyx_pf_3_sa_7Sampler___cinit__(struct __pyx_obj_3_sa_Sampler *__pyx
   __pyx_t_1 = (__pyx_v_sample_size > 0);
   if (__pyx_t_1) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":90
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":91
  *         self.sa = fsarray.sa
  *         if sample_size > 0:
  *             logger.info("Sampling strategy: uniform, max sample size = %d", sample_size)             # <<<<<<<<<<<<<<
  *         else:
  *             logger.info("Sampling strategy: no sampling")
  */
-    __pyx_t_2 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 90; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 91; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_3 = PyObject_GetAttr(__pyx_t_2, __pyx_n_s__info); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 90; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_GetAttr(__pyx_t_2, __pyx_n_s__info); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 91; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __pyx_t_2 = PyInt_FromLong(__pyx_v_sample_size); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 90; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyInt_FromLong(__pyx_v_sample_size); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 91; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_4 = PyTuple_New(2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 90; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyTuple_New(2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 91; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
-    __Pyx_INCREF(((PyObject *)__pyx_kp_s_100));
-    PyTuple_SET_ITEM(__pyx_t_4, 0, ((PyObject *)__pyx_kp_s_100));
-    __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_100));
+    __Pyx_INCREF(((PyObject *)__pyx_kp_s_102));
+    PyTuple_SET_ITEM(__pyx_t_4, 0, ((PyObject *)__pyx_kp_s_102));
+    __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_102));
     PyTuple_SET_ITEM(__pyx_t_4, 1, __pyx_t_2);
     __Pyx_GIVEREF(__pyx_t_2);
     __pyx_t_2 = 0;
-    __pyx_t_2 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 90; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 91; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
@@ -35676,19 +37545,19 @@ static int __pyx_pf_3_sa_7Sampler___cinit__(struct __pyx_obj_3_sa_Sampler *__pyx
   }
   /*else*/ {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":92
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":93
  *             logger.info("Sampling strategy: uniform, max sample size = %d", sample_size)
  *         else:
  *             logger.info("Sampling strategy: no sampling")             # <<<<<<<<<<<<<<
  * 
  *     def sample(self, PhraseLocation phrase_location):
  */
-    __pyx_t_2 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 92; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 93; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_4 = PyObject_GetAttr(__pyx_t_2, __pyx_n_s__info); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 92; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyObject_GetAttr(__pyx_t_2, __pyx_n_s__info); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 93; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __pyx_t_2 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_k_tuple_102), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 92; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_k_tuple_104), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 93; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
@@ -35715,7 +37584,7 @@ static PyObject *__pyx_pw_3_sa_7Sampler_3sample(PyObject *__pyx_v_self, PyObject
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("sample (wrapper)", 0);
-  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_phrase_location), __pyx_ptype_3_sa_PhraseLocation, 1, "phrase_location", 0))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 94; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_phrase_location), __pyx_ptype_3_sa_PhraseLocation, 1, "phrase_location", 0))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 95; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_r = __pyx_pf_3_sa_7Sampler_2sample(((struct __pyx_obj_3_sa_Sampler *)__pyx_v_self), ((struct __pyx_obj_3_sa_PhraseLocation *)__pyx_v_phrase_location));
   goto __pyx_L0;
   __pyx_L1_error:;
@@ -35725,7 +37594,7 @@ static PyObject *__pyx_pw_3_sa_7Sampler_3sample(PyObject *__pyx_v_self, PyObject
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":94
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":95
  *             logger.info("Sampling strategy: no sampling")
  * 
  *     def sample(self, PhraseLocation phrase_location):             # <<<<<<<<<<<<<<
@@ -35752,19 +37621,19 @@ static PyObject *__pyx_pf_3_sa_7Sampler_2sample(struct __pyx_obj_3_sa_Sampler *_
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("sample", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":107
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":108
  *         cdef int num_locations, val, j
  * 
  *         sample = IntList()             # <<<<<<<<<<<<<<
  *         if phrase_location.arr is None:
  *             num_locations = phrase_location.sa_high - phrase_location.sa_low
  */
-  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 107; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 108; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_v_sample = ((struct __pyx_obj_3_sa_IntList *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":108
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":109
  * 
  *         sample = IntList()
  *         if phrase_location.arr is None:             # <<<<<<<<<<<<<<
@@ -35774,7 +37643,7 @@ static PyObject *__pyx_pf_3_sa_7Sampler_2sample(struct __pyx_obj_3_sa_Sampler *_
   __pyx_t_2 = (((PyObject *)__pyx_v_phrase_location->arr) == Py_None);
   if (__pyx_t_2) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":109
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":110
  *         sample = IntList()
  *         if phrase_location.arr is None:
  *             num_locations = phrase_location.sa_high - phrase_location.sa_low             # <<<<<<<<<<<<<<
@@ -35783,7 +37652,7 @@ static PyObject *__pyx_pf_3_sa_7Sampler_2sample(struct __pyx_obj_3_sa_Sampler *_
  */
     __pyx_v_num_locations = (__pyx_v_phrase_location->sa_high - __pyx_v_phrase_location->sa_low);
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":110
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":111
  *         if phrase_location.arr is None:
  *             num_locations = phrase_location.sa_high - phrase_location.sa_low
  *             if self.sample_size == -1 or num_locations <= self.sample_size:             # <<<<<<<<<<<<<<
@@ -35799,7 +37668,7 @@ static PyObject *__pyx_pf_3_sa_7Sampler_2sample(struct __pyx_obj_3_sa_Sampler *_
     }
     if (__pyx_t_4) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":111
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":112
  *             num_locations = phrase_location.sa_high - phrase_location.sa_low
  *             if self.sample_size == -1 or num_locations <= self.sample_size:
  *                 sample._extend_arr(self.sa.arr + phrase_location.sa_low, num_locations)             # <<<<<<<<<<<<<<
@@ -35811,7 +37680,7 @@ static PyObject *__pyx_pf_3_sa_7Sampler_2sample(struct __pyx_obj_3_sa_Sampler *_
     }
     /*else*/ {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":113
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":114
  *                 sample._extend_arr(self.sa.arr + phrase_location.sa_low, num_locations)
  *             else:
  *                 stepsize = float(num_locations)/float(self.sample_size)             # <<<<<<<<<<<<<<
@@ -35820,11 +37689,11 @@ static PyObject *__pyx_pf_3_sa_7Sampler_2sample(struct __pyx_obj_3_sa_Sampler *_
  */
       if (unlikely(((double)__pyx_v_self->sample_size) == 0)) {
         PyErr_Format(PyExc_ZeroDivisionError, "float division");
-        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 113; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 114; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       }
       __pyx_v_stepsize = (((double)__pyx_v_num_locations) / ((double)__pyx_v_self->sample_size));
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":114
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":115
  *             else:
  *                 stepsize = float(num_locations)/float(self.sample_size)
  *                 i = phrase_location.sa_low             # <<<<<<<<<<<<<<
@@ -35833,7 +37702,7 @@ static PyObject *__pyx_pf_3_sa_7Sampler_2sample(struct __pyx_obj_3_sa_Sampler *_
  */
       __pyx_v_i = __pyx_v_phrase_location->sa_low;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":115
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":116
  *                 stepsize = float(num_locations)/float(self.sample_size)
  *                 i = phrase_location.sa_low
  *                 while i < phrase_location.sa_high and sample.len < self.sample_size:             # <<<<<<<<<<<<<<
@@ -35850,7 +37719,7 @@ static PyObject *__pyx_pf_3_sa_7Sampler_2sample(struct __pyx_obj_3_sa_Sampler *_
         }
         if (!__pyx_t_3) break;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":118
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":119
  *                     '''Note: int(i) not guaranteed to have the desired
  *                     effect, according to the python documentation'''
  *                     if fmod(i,1.0) > 0.5:             # <<<<<<<<<<<<<<
@@ -35860,7 +37729,7 @@ static PyObject *__pyx_pf_3_sa_7Sampler_2sample(struct __pyx_obj_3_sa_Sampler *_
         __pyx_t_3 = (fmod(__pyx_v_i, 1.0) > 0.5);
         if (__pyx_t_3) {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":119
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":120
  *                     effect, according to the python documentation'''
  *                     if fmod(i,1.0) > 0.5:
  *                         val = int(ceil(i))             # <<<<<<<<<<<<<<
@@ -35872,7 +37741,7 @@ static PyObject *__pyx_pf_3_sa_7Sampler_2sample(struct __pyx_obj_3_sa_Sampler *_
         }
         /*else*/ {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":121
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":122
  *                         val = int(ceil(i))
  *                     else:
  *                         val = int(floor(i))             # <<<<<<<<<<<<<<
@@ -35883,7 +37752,7 @@ static PyObject *__pyx_pf_3_sa_7Sampler_2sample(struct __pyx_obj_3_sa_Sampler *_
         }
         __pyx_L7:;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":122
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":123
  *                     else:
  *                         val = int(floor(i))
  *                     sample._append(self.sa.arr[val])             # <<<<<<<<<<<<<<
@@ -35892,7 +37761,7 @@ static PyObject *__pyx_pf_3_sa_7Sampler_2sample(struct __pyx_obj_3_sa_Sampler *_
  */
         ((struct __pyx_vtabstruct_3_sa_IntList *)__pyx_v_sample->__pyx_vtab)->_append(__pyx_v_sample, (__pyx_v_self->sa->arr[__pyx_v_val]));
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":123
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":124
  *                         val = int(floor(i))
  *                     sample._append(self.sa.arr[val])
  *                     i = i + stepsize             # <<<<<<<<<<<<<<
@@ -35907,7 +37776,7 @@ static PyObject *__pyx_pf_3_sa_7Sampler_2sample(struct __pyx_obj_3_sa_Sampler *_
   }
   /*else*/ {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":125
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":126
  *                     i = i + stepsize
  *         else:
  *             num_locations = (phrase_location.arr_high - phrase_location.arr_low) / phrase_location.num_subpatterns             # <<<<<<<<<<<<<<
@@ -35917,15 +37786,15 @@ static PyObject *__pyx_pf_3_sa_7Sampler_2sample(struct __pyx_obj_3_sa_Sampler *_
     __pyx_t_5 = (__pyx_v_phrase_location->arr_high - __pyx_v_phrase_location->arr_low);
     if (unlikely(__pyx_v_phrase_location->num_subpatterns == 0)) {
       PyErr_Format(PyExc_ZeroDivisionError, "integer division or modulo by zero");
-      {__pyx_filename = __pyx_f[8]; __pyx_lineno = 125; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      {__pyx_filename = __pyx_f[8]; __pyx_lineno = 126; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     }
     else if (sizeof(int) == sizeof(long) && unlikely(__pyx_v_phrase_location->num_subpatterns == -1) && unlikely(UNARY_NEG_WOULD_OVERFLOW(__pyx_t_5))) {
       PyErr_Format(PyExc_OverflowError, "value too large to perform division");
-      {__pyx_filename = __pyx_f[8]; __pyx_lineno = 125; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      {__pyx_filename = __pyx_f[8]; __pyx_lineno = 126; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     }
     __pyx_v_num_locations = __Pyx_div_int(__pyx_t_5, __pyx_v_phrase_location->num_subpatterns);
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":126
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":127
  *         else:
  *             num_locations = (phrase_location.arr_high - phrase_location.arr_low) / phrase_location.num_subpatterns
  *             if self.sample_size == -1 or num_locations <= self.sample_size:             # <<<<<<<<<<<<<<
@@ -35941,7 +37810,7 @@ static PyObject *__pyx_pf_3_sa_7Sampler_2sample(struct __pyx_obj_3_sa_Sampler *_
     }
     if (__pyx_t_2) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":127
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":128
  *             num_locations = (phrase_location.arr_high - phrase_location.arr_low) / phrase_location.num_subpatterns
  *             if self.sample_size == -1 or num_locations <= self.sample_size:
  *                 sample = phrase_location.arr             # <<<<<<<<<<<<<<
@@ -35955,7 +37824,7 @@ static PyObject *__pyx_pf_3_sa_7Sampler_2sample(struct __pyx_obj_3_sa_Sampler *_
     }
     /*else*/ {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":129
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":130
  *                 sample = phrase_location.arr
  *             else:
  *                 stepsize = float(num_locations)/float(self.sample_size)             # <<<<<<<<<<<<<<
@@ -35964,11 +37833,11 @@ static PyObject *__pyx_pf_3_sa_7Sampler_2sample(struct __pyx_obj_3_sa_Sampler *_
  */
       if (unlikely(((double)__pyx_v_self->sample_size) == 0)) {
         PyErr_Format(PyExc_ZeroDivisionError, "float division");
-        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 129; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 130; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       }
       __pyx_v_stepsize = (((double)__pyx_v_num_locations) / ((double)__pyx_v_self->sample_size));
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":130
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":131
  *             else:
  *                 stepsize = float(num_locations)/float(self.sample_size)
  *                 i = phrase_location.arr_low             # <<<<<<<<<<<<<<
@@ -35977,7 +37846,7 @@ static PyObject *__pyx_pf_3_sa_7Sampler_2sample(struct __pyx_obj_3_sa_Sampler *_
  */
       __pyx_v_i = __pyx_v_phrase_location->arr_low;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":131
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":132
  *                 stepsize = float(num_locations)/float(self.sample_size)
  *                 i = phrase_location.arr_low
  *                 while i < num_locations and sample.len < self.sample_size * phrase_location.num_subpatterns:             # <<<<<<<<<<<<<<
@@ -35994,7 +37863,7 @@ static PyObject *__pyx_pf_3_sa_7Sampler_2sample(struct __pyx_obj_3_sa_Sampler *_
         }
         if (!__pyx_t_4) break;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":134
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":135
  *                     '''Note: int(i) not guaranteed to have the desired
  *                     effect, according to the python documentation'''
  *                     if fmod(i,1.0) > 0.5:             # <<<<<<<<<<<<<<
@@ -36004,7 +37873,7 @@ static PyObject *__pyx_pf_3_sa_7Sampler_2sample(struct __pyx_obj_3_sa_Sampler *_
         __pyx_t_4 = (fmod(__pyx_v_i, 1.0) > 0.5);
         if (__pyx_t_4) {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":135
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":136
  *                     effect, according to the python documentation'''
  *                     if fmod(i,1.0) > 0.5:
  *                         val = int(ceil(i))             # <<<<<<<<<<<<<<
@@ -36016,7 +37885,7 @@ static PyObject *__pyx_pf_3_sa_7Sampler_2sample(struct __pyx_obj_3_sa_Sampler *_
         }
         /*else*/ {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":137
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":138
  *                         val = int(ceil(i))
  *                     else:
  *                         val = int(floor(i))             # <<<<<<<<<<<<<<
@@ -36027,7 +37896,7 @@ static PyObject *__pyx_pf_3_sa_7Sampler_2sample(struct __pyx_obj_3_sa_Sampler *_
         }
         __pyx_L11:;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":138
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":139
  *                     else:
  *                         val = int(floor(i))
  *                     j = phrase_location.arr_low + (val*phrase_location.num_subpatterns)             # <<<<<<<<<<<<<<
@@ -36036,7 +37905,7 @@ static PyObject *__pyx_pf_3_sa_7Sampler_2sample(struct __pyx_obj_3_sa_Sampler *_
  */
         __pyx_v_j = (__pyx_v_phrase_location->arr_low + (__pyx_v_val * __pyx_v_phrase_location->num_subpatterns));
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":139
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":140
  *                         val = int(floor(i))
  *                     j = phrase_location.arr_low + (val*phrase_location.num_subpatterns)
  *                     sample._extend_arr(phrase_location.arr.arr + j, phrase_location.num_subpatterns)             # <<<<<<<<<<<<<<
@@ -36045,7 +37914,7 @@ static PyObject *__pyx_pf_3_sa_7Sampler_2sample(struct __pyx_obj_3_sa_Sampler *_
  */
         ((struct __pyx_vtabstruct_3_sa_IntList *)__pyx_v_sample->__pyx_vtab)->_extend_arr(__pyx_v_sample, (__pyx_v_phrase_location->arr->arr + __pyx_v_j), __pyx_v_phrase_location->num_subpatterns);
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":140
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":141
  *                     j = phrase_location.arr_low + (val*phrase_location.num_subpatterns)
  *                     sample._extend_arr(phrase_location.arr.arr + j, phrase_location.num_subpatterns)
  *                     i = i + stepsize             # <<<<<<<<<<<<<<
@@ -36059,7 +37928,7 @@ static PyObject *__pyx_pf_3_sa_7Sampler_2sample(struct __pyx_obj_3_sa_Sampler *_
   }
   __pyx_L3:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":141
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":142
  *                     sample._extend_arr(phrase_location.arr.arr + j, phrase_location.num_subpatterns)
  *                     i = i + stepsize
  *         return sample             # <<<<<<<<<<<<<<
@@ -36084,7 +37953,7 @@ static PyObject *__pyx_pf_3_sa_7Sampler_2sample(struct __pyx_obj_3_sa_Sampler *_
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":153
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":154
  * 
  * 
  * cdef void assign_matching(Matching* m, int* arr, int start, int step, int* sent_id_arr):             # <<<<<<<<<<<<<<
@@ -36096,7 +37965,7 @@ static void __pyx_f_3_sa_assign_matching(struct __pyx_t_3_sa_Matching *__pyx_v_m
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("assign_matching", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":154
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":155
  * 
  * cdef void assign_matching(Matching* m, int* arr, int start, int step, int* sent_id_arr):
  *     m.arr = arr             # <<<<<<<<<<<<<<
@@ -36105,7 +37974,7 @@ static void __pyx_f_3_sa_assign_matching(struct __pyx_t_3_sa_Matching *__pyx_v_m
  */
   __pyx_v_m->arr = __pyx_v_arr;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":155
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":156
  * cdef void assign_matching(Matching* m, int* arr, int start, int step, int* sent_id_arr):
  *     m.arr = arr
  *     m.start = start             # <<<<<<<<<<<<<<
@@ -36114,7 +37983,7 @@ static void __pyx_f_3_sa_assign_matching(struct __pyx_t_3_sa_Matching *__pyx_v_m
  */
   __pyx_v_m->start = __pyx_v_start;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":156
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":157
  *     m.arr = arr
  *     m.start = start
  *     m.end = start + step             # <<<<<<<<<<<<<<
@@ -36123,7 +37992,7 @@ static void __pyx_f_3_sa_assign_matching(struct __pyx_t_3_sa_Matching *__pyx_v_m
  */
   __pyx_v_m->end = (__pyx_v_start + __pyx_v_step);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":157
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":158
  *     m.start = start
  *     m.end = start + step
  *     m.sent_id = sent_id_arr[arr[start]]             # <<<<<<<<<<<<<<
@@ -36132,7 +38001,7 @@ static void __pyx_f_3_sa_assign_matching(struct __pyx_t_3_sa_Matching *__pyx_v_m
  */
   __pyx_v_m->sent_id = (__pyx_v_sent_id_arr[(__pyx_v_arr[__pyx_v_start])]);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":158
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":159
  *     m.end = start + step
  *     m.sent_id = sent_id_arr[arr[start]]
  *     m.size = step             # <<<<<<<<<<<<<<
@@ -36144,7 +38013,7 @@ static void __pyx_f_3_sa_assign_matching(struct __pyx_t_3_sa_Matching *__pyx_v_m
   __Pyx_RefNannyFinishContext();
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":161
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":162
  * 
  * 
  * cdef int* append_combined_matching(int* arr, Matching* loc1, Matching* loc2,             # <<<<<<<<<<<<<<
@@ -36161,7 +38030,7 @@ static int *__pyx_f_3_sa_append_combined_matching(int *__pyx_v_arr, struct __pyx
   int __pyx_t_2;
   __Pyx_RefNannySetupContext("append_combined_matching", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":165
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":166
  *     cdef int i, new_len
  * 
  *     new_len = result_len[0] + num_subpatterns             # <<<<<<<<<<<<<<
@@ -36170,7 +38039,7 @@ static int *__pyx_f_3_sa_append_combined_matching(int *__pyx_v_arr, struct __pyx
  */
   __pyx_v_new_len = ((__pyx_v_result_len[0]) + __pyx_v_num_subpatterns);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":166
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":167
  * 
  *     new_len = result_len[0] + num_subpatterns
  *     arr = <int*> realloc(arr, new_len*sizeof(int))             # <<<<<<<<<<<<<<
@@ -36179,7 +38048,7 @@ static int *__pyx_f_3_sa_append_combined_matching(int *__pyx_v_arr, struct __pyx
  */
   __pyx_v_arr = ((int *)realloc(__pyx_v_arr, (__pyx_v_new_len * (sizeof(int)))));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":168
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":169
  *     arr = <int*> realloc(arr, new_len*sizeof(int))
  * 
  *     for i from 0 <= i < loc1.size:             # <<<<<<<<<<<<<<
@@ -36189,7 +38058,7 @@ static int *__pyx_f_3_sa_append_combined_matching(int *__pyx_v_arr, struct __pyx
   __pyx_t_1 = __pyx_v_loc1->size;
   for (__pyx_v_i = 0; __pyx_v_i < __pyx_t_1; __pyx_v_i++) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":169
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":170
  * 
  *     for i from 0 <= i < loc1.size:
  *         arr[result_len[0]+i] = loc1.arr[loc1.start+i]             # <<<<<<<<<<<<<<
@@ -36199,7 +38068,7 @@ static int *__pyx_f_3_sa_append_combined_matching(int *__pyx_v_arr, struct __pyx
     (__pyx_v_arr[((__pyx_v_result_len[0]) + __pyx_v_i)]) = (__pyx_v_loc1->arr[(__pyx_v_loc1->start + __pyx_v_i)]);
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":170
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":171
  *     for i from 0 <= i < loc1.size:
  *         arr[result_len[0]+i] = loc1.arr[loc1.start+i]
  *     if num_subpatterns > loc1.size:             # <<<<<<<<<<<<<<
@@ -36209,7 +38078,7 @@ static int *__pyx_f_3_sa_append_combined_matching(int *__pyx_v_arr, struct __pyx
   __pyx_t_2 = (__pyx_v_num_subpatterns > __pyx_v_loc1->size);
   if (__pyx_t_2) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":171
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":172
  *         arr[result_len[0]+i] = loc1.arr[loc1.start+i]
  *     if num_subpatterns > loc1.size:
  *         arr[new_len-1] = loc2.arr[loc2.end-1]             # <<<<<<<<<<<<<<
@@ -36221,7 +38090,7 @@ static int *__pyx_f_3_sa_append_combined_matching(int *__pyx_v_arr, struct __pyx
   }
   __pyx_L5:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":172
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":173
  *     if num_subpatterns > loc1.size:
  *         arr[new_len-1] = loc2.arr[loc2.end-1]
  *     result_len[0] = new_len             # <<<<<<<<<<<<<<
@@ -36230,7 +38099,7 @@ static int *__pyx_f_3_sa_append_combined_matching(int *__pyx_v_arr, struct __pyx
  */
   (__pyx_v_result_len[0]) = __pyx_v_new_len;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":173
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":174
  *         arr[new_len-1] = loc2.arr[loc2.end-1]
  *     result_len[0] = new_len
  *     return arr             # <<<<<<<<<<<<<<
@@ -36246,7 +38115,7 @@ static int *__pyx_f_3_sa_append_combined_matching(int *__pyx_v_arr, struct __pyx
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":176
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":177
  * 
  * 
  * cdef int* extend_arr(int* arr, int* arr_len, int* appendix, int appendix_len):             # <<<<<<<<<<<<<<
@@ -36260,7 +38129,7 @@ static int *__pyx_f_3_sa_extend_arr(int *__pyx_v_arr, int *__pyx_v_arr_len, int
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("extend_arr", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":179
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":180
  *     cdef int new_len
  * 
  *     new_len = arr_len[0] + appendix_len             # <<<<<<<<<<<<<<
@@ -36269,7 +38138,7 @@ static int *__pyx_f_3_sa_extend_arr(int *__pyx_v_arr, int *__pyx_v_arr_len, int
  */
   __pyx_v_new_len = ((__pyx_v_arr_len[0]) + __pyx_v_appendix_len);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":180
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":181
  * 
  *     new_len = arr_len[0] + appendix_len
  *     arr = <int*> realloc(arr, new_len*sizeof(int))             # <<<<<<<<<<<<<<
@@ -36278,7 +38147,7 @@ static int *__pyx_f_3_sa_extend_arr(int *__pyx_v_arr, int *__pyx_v_arr_len, int
  */
   __pyx_v_arr = ((int *)realloc(__pyx_v_arr, (__pyx_v_new_len * (sizeof(int)))));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":181
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":182
  *     new_len = arr_len[0] + appendix_len
  *     arr = <int*> realloc(arr, new_len*sizeof(int))
  *     memcpy(arr+arr_len[0], appendix, appendix_len*sizeof(int))             # <<<<<<<<<<<<<<
@@ -36287,7 +38156,7 @@ static int *__pyx_f_3_sa_extend_arr(int *__pyx_v_arr, int *__pyx_v_arr_len, int
  */
   memcpy((__pyx_v_arr + (__pyx_v_arr_len[0])), __pyx_v_appendix, (__pyx_v_appendix_len * (sizeof(int))));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":182
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":183
  *     arr = <int*> realloc(arr, new_len*sizeof(int))
  *     memcpy(arr+arr_len[0], appendix, appendix_len*sizeof(int))
  *     arr_len[0] = new_len             # <<<<<<<<<<<<<<
@@ -36296,7 +38165,7 @@ static int *__pyx_f_3_sa_extend_arr(int *__pyx_v_arr, int *__pyx_v_arr_len, int
  */
   (__pyx_v_arr_len[0]) = __pyx_v_new_len;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":183
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":184
  *     memcpy(arr+arr_len[0], appendix, appendix_len*sizeof(int))
  *     arr_len[0] = new_len
  *     return arr             # <<<<<<<<<<<<<<
@@ -36312,7 +38181,7 @@ static int *__pyx_f_3_sa_extend_arr(int *__pyx_v_arr, int *__pyx_v_arr_len, int
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":185
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":186
  *     return arr
  * 
  * cdef int median(int low, int high, int step):             # <<<<<<<<<<<<<<
@@ -36329,7 +38198,7 @@ static int __pyx_f_3_sa_median(int __pyx_v_low, int __pyx_v_high, int __pyx_v_st
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("median", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":186
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":187
  * 
  * cdef int median(int low, int high, int step):
  *     return low + (((high - low)/step)/2)*step             # <<<<<<<<<<<<<<
@@ -36339,11 +38208,11 @@ static int __pyx_f_3_sa_median(int __pyx_v_low, int __pyx_v_high, int __pyx_v_st
   __pyx_t_1 = (__pyx_v_high - __pyx_v_low);
   if (unlikely(__pyx_v_step == 0)) {
     PyErr_Format(PyExc_ZeroDivisionError, "integer division or modulo by zero");
-    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 186; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 187; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   }
   else if (sizeof(int) == sizeof(long) && unlikely(__pyx_v_step == -1) && unlikely(UNARY_NEG_WOULD_OVERFLOW(__pyx_t_1))) {
     PyErr_Format(PyExc_OverflowError, "value too large to perform division");
-    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 186; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 187; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   }
   __pyx_r = (__pyx_v_low + (__Pyx_div_long(__Pyx_div_int(__pyx_t_1, __pyx_v_step), 2) * __pyx_v_step));
   goto __pyx_L0;
@@ -36358,7 +38227,7 @@ static int __pyx_f_3_sa_median(int __pyx_v_low, int __pyx_v_high, int __pyx_v_st
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":189
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":190
  * 
  * 
  * cdef void find_comparable_matchings(int low, int high, int* arr, int step, int loc, int* loc_minus, int* loc_plus):             # <<<<<<<<<<<<<<
@@ -36373,7 +38242,7 @@ static void __pyx_f_3_sa_find_comparable_matchings(int __pyx_v_low, int __pyx_v_
   int __pyx_t_3;
   __Pyx_RefNannySetupContext("find_comparable_matchings", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":193
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":194
  *     # in which all matchings have the same first index as the one
  *     # starting at loc
  *     loc_plus[0] = loc + step             # <<<<<<<<<<<<<<
@@ -36382,7 +38251,7 @@ static void __pyx_f_3_sa_find_comparable_matchings(int __pyx_v_low, int __pyx_v_
  */
   (__pyx_v_loc_plus[0]) = (__pyx_v_loc + __pyx_v_step);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":194
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":195
  *     # starting at loc
  *     loc_plus[0] = loc + step
  *     while loc_plus[0] < high and arr[loc_plus[0]] == arr[loc]:             # <<<<<<<<<<<<<<
@@ -36399,7 +38268,7 @@ static void __pyx_f_3_sa_find_comparable_matchings(int __pyx_v_low, int __pyx_v_
     }
     if (!__pyx_t_3) break;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":195
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":196
  *     loc_plus[0] = loc + step
  *     while loc_plus[0] < high and arr[loc_plus[0]] == arr[loc]:
  *         loc_plus[0] = loc_plus[0] + step             # <<<<<<<<<<<<<<
@@ -36409,7 +38278,7 @@ static void __pyx_f_3_sa_find_comparable_matchings(int __pyx_v_low, int __pyx_v_
     (__pyx_v_loc_plus[0]) = ((__pyx_v_loc_plus[0]) + __pyx_v_step);
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":196
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":197
  *     while loc_plus[0] < high and arr[loc_plus[0]] == arr[loc]:
  *         loc_plus[0] = loc_plus[0] + step
  *     loc_minus[0] = loc             # <<<<<<<<<<<<<<
@@ -36418,7 +38287,7 @@ static void __pyx_f_3_sa_find_comparable_matchings(int __pyx_v_low, int __pyx_v_
  */
   (__pyx_v_loc_minus[0]) = __pyx_v_loc;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":197
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":198
  *         loc_plus[0] = loc_plus[0] + step
  *     loc_minus[0] = loc
  *     while loc_minus[0]-step >= low and arr[loc_minus[0]-step] == arr[loc]:             # <<<<<<<<<<<<<<
@@ -36435,7 +38304,7 @@ static void __pyx_f_3_sa_find_comparable_matchings(int __pyx_v_low, int __pyx_v_
     }
     if (!__pyx_t_2) break;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":198
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":199
  *     loc_minus[0] = loc
  *     while loc_minus[0]-step >= low and arr[loc_minus[0]-step] == arr[loc]:
  *         loc_minus[0] = loc_minus[0] - step             # <<<<<<<<<<<<<<
@@ -36476,10 +38345,10 @@ static int __pyx_pw_3_sa_23HieroCachingRuleFactory_1__cinit__(PyObject *__pyx_v_
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__cinit__ (wrapper)", 0);
   {
-    static PyObject **__pyx_pyargnames[] = {&__pyx_n_s__alignment,&__pyx_n_s__by_slack_factor,&__pyx_n_s__category,&__pyx_n_s__max_chunks,&__pyx_n_s__max_initial_size,&__pyx_n_s__max_length,&__pyx_n_s__max_nonterminals,&__pyx_n_s__max_target_chunks,&__pyx_n_s__max_target_length,&__pyx_n_s__min_gap_size,&__pyx_n_s__precompute_file,&__pyx_n_s_70,&__pyx_n_s__precompute_rank,&__pyx_n_s_103,&__pyx_n_s_104,&__pyx_n_s_71,&__pyx_n_s__train_min_gap_size,&__pyx_n_s__tight_phrases,&__pyx_n_s__use_baeza_yates,&__pyx_n_s__use_collocations,&__pyx_n_s__use_index,0};
+    static PyObject **__pyx_pyargnames[] = {&__pyx_n_s__alignment,&__pyx_n_s__by_slack_factor,&__pyx_n_s__category,&__pyx_n_s__max_chunks,&__pyx_n_s__max_initial_size,&__pyx_n_s__max_length,&__pyx_n_s__max_nonterminals,&__pyx_n_s__max_target_chunks,&__pyx_n_s__max_target_length,&__pyx_n_s__min_gap_size,&__pyx_n_s__precompute_file,&__pyx_n_s_70,&__pyx_n_s__precompute_rank,&__pyx_n_s_105,&__pyx_n_s_106,&__pyx_n_s_71,&__pyx_n_s__train_min_gap_size,&__pyx_n_s__tight_phrases,&__pyx_n_s__use_baeza_yates,&__pyx_n_s__use_collocations,&__pyx_n_s__use_index,0};
     PyObject* values[21] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":257
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":259
  *             char* category="[X]",
  *             # maximum number of contiguous chunks of terminal symbols in RHS of a rule. If None, defaults to max_nonterminals+1
  *             max_chunks=None,             # <<<<<<<<<<<<<<
@@ -36488,7 +38357,7 @@ static int __pyx_pw_3_sa_23HieroCachingRuleFactory_1__cinit__(PyObject *__pyx_v_
  */
     values[3] = ((PyObject *)Py_None);
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":265
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":267
  *             unsigned max_nonterminals=2,
  *             # maximum number of contiguous chunks of terminal symbols in target-side RHS of a rule. If None, defaults to max_nonterminals+1
  *             max_target_chunks=None,             # <<<<<<<<<<<<<<
@@ -36497,7 +38366,7 @@ static int __pyx_pw_3_sa_23HieroCachingRuleFactory_1__cinit__(PyObject *__pyx_v_
  */
     values[7] = ((PyObject *)Py_None);
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":267
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":269
  *             max_target_chunks=None,
  *             # maximum number of target side symbols (both T and NT) allowed in a rule. If None, defaults to max_initial_size
  *             max_target_length=None,             # <<<<<<<<<<<<<<
@@ -36506,7 +38375,7 @@ static int __pyx_pw_3_sa_23HieroCachingRuleFactory_1__cinit__(PyObject *__pyx_v_
  */
     values[8] = ((PyObject *)Py_None);
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":271
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":273
  *             unsigned min_gap_size=2,
  *             # filename of file containing precomputed collocations
  *             precompute_file=None,             # <<<<<<<<<<<<<<
@@ -36609,12 +38478,12 @@ static int __pyx_pw_3_sa_23HieroCachingRuleFactory_1__cinit__(PyObject *__pyx_v_
         }
         case 13:
         if (kw_args > 0) {
-          PyObject* value = PyDict_GetItem(__pyx_kwds, __pyx_n_s_103);
+          PyObject* value = PyDict_GetItem(__pyx_kwds, __pyx_n_s_105);
           if (value) { values[13] = value; kw_args--; }
         }
         case 14:
         if (kw_args > 0) {
-          PyObject* value = PyDict_GetItem(__pyx_kwds, __pyx_n_s_104);
+          PyObject* value = PyDict_GetItem(__pyx_kwds, __pyx_n_s_106);
           if (value) { values[14] = value; kw_args--; }
         }
         case 15:
@@ -36649,7 +38518,7 @@ static int __pyx_pw_3_sa_23HieroCachingRuleFactory_1__cinit__(PyObject *__pyx_v_
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "__cinit__") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 249; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "__cinit__") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 251; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else {
       switch (PyTuple_GET_SIZE(__pyx_args)) {
@@ -36680,10 +38549,10 @@ static int __pyx_pw_3_sa_23HieroCachingRuleFactory_1__cinit__(PyObject *__pyx_v_
     }
     __pyx_v_alignment = ((struct __pyx_obj_3_sa_Alignment *)values[0]);
     if (values[1]) {
-      __pyx_v_by_slack_factor = __pyx_PyFloat_AsFloat(values[1]); if (unlikely((__pyx_v_by_slack_factor == (float)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 253; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+      __pyx_v_by_slack_factor = __pyx_PyFloat_AsFloat(values[1]); if (unlikely((__pyx_v_by_slack_factor == (float)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 255; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
     } else {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":253
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":255
  *             Alignment alignment,
  *             # parameter for double-binary search; doesn't seem to matter much
  *             float by_slack_factor=1.0,             # <<<<<<<<<<<<<<
@@ -36693,49 +38562,49 @@ static int __pyx_pw_3_sa_23HieroCachingRuleFactory_1__cinit__(PyObject *__pyx_v_
       __pyx_v_by_slack_factor = ((float)1.0);
     }
     if (values[2]) {
-      __pyx_v_category = PyBytes_AsString(values[2]); if (unlikely((!__pyx_v_category) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 255; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+      __pyx_v_category = PyBytes_AsString(values[2]); if (unlikely((!__pyx_v_category) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 257; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
     } else {
-      __pyx_v_category = ((char *)__pyx_k_105);
+      __pyx_v_category = ((char *)__pyx_k_107);
     }
     __pyx_v_max_chunks = values[3];
     if (values[4]) {
-      __pyx_v_max_initial_size = __Pyx_PyInt_AsUnsignedInt(values[4]); if (unlikely((__pyx_v_max_initial_size == (unsigned int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 259; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+      __pyx_v_max_initial_size = __Pyx_PyInt_AsUnsignedInt(values[4]); if (unlikely((__pyx_v_max_initial_size == (unsigned int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 261; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
     } else {
       __pyx_v_max_initial_size = ((unsigned int)10);
     }
     if (values[5]) {
-      __pyx_v_max_length = __Pyx_PyInt_AsUnsignedInt(values[5]); if (unlikely((__pyx_v_max_length == (unsigned int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 261; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+      __pyx_v_max_length = __Pyx_PyInt_AsUnsignedInt(values[5]); if (unlikely((__pyx_v_max_length == (unsigned int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 263; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
     } else {
       __pyx_v_max_length = ((unsigned int)5);
     }
     if (values[6]) {
-      __pyx_v_max_nonterminals = __Pyx_PyInt_AsUnsignedInt(values[6]); if (unlikely((__pyx_v_max_nonterminals == (unsigned int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 263; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+      __pyx_v_max_nonterminals = __Pyx_PyInt_AsUnsignedInt(values[6]); if (unlikely((__pyx_v_max_nonterminals == (unsigned int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 265; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
     } else {
       __pyx_v_max_nonterminals = ((unsigned int)2);
     }
     __pyx_v_max_target_chunks = values[7];
     __pyx_v_max_target_length = values[8];
     if (values[9]) {
-      __pyx_v_min_gap_size = __Pyx_PyInt_AsUnsignedInt(values[9]); if (unlikely((__pyx_v_min_gap_size == (unsigned int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 269; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+      __pyx_v_min_gap_size = __Pyx_PyInt_AsUnsignedInt(values[9]); if (unlikely((__pyx_v_min_gap_size == (unsigned int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 271; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
     } else {
       __pyx_v_min_gap_size = ((unsigned int)2);
     }
     __pyx_v_precompute_file = values[10];
     if (values[11]) {
-      __pyx_v_precompute_secondary_rank = __Pyx_PyInt_AsUnsignedInt(values[11]); if (unlikely((__pyx_v_precompute_secondary_rank == (unsigned int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 273; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+      __pyx_v_precompute_secondary_rank = __Pyx_PyInt_AsUnsignedInt(values[11]); if (unlikely((__pyx_v_precompute_secondary_rank == (unsigned int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 275; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
     } else {
       __pyx_v_precompute_secondary_rank = ((unsigned int)20);
     }
     if (values[12]) {
-      __pyx_v_precompute_rank = __Pyx_PyInt_AsUnsignedInt(values[12]); if (unlikely((__pyx_v_precompute_rank == (unsigned int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 275; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+      __pyx_v_precompute_rank = __Pyx_PyInt_AsUnsignedInt(values[12]); if (unlikely((__pyx_v_precompute_rank == (unsigned int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 277; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
     } else {
       __pyx_v_precompute_rank = ((unsigned int)100);
     }
     if (values[13]) {
-      __pyx_v_require_aligned_terminal = __Pyx_PyObject_IsTrue(values[13]); if (unlikely((__pyx_v_require_aligned_terminal == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 277; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+      __pyx_v_require_aligned_terminal = __Pyx_PyObject_IsTrue(values[13]); if (unlikely((__pyx_v_require_aligned_terminal == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 279; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
     } else {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":277
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":279
  *             unsigned precompute_rank=100,
  *             # require extracted rules to have at least one aligned word
  *             bint require_aligned_terminal=True,             # <<<<<<<<<<<<<<
@@ -36745,10 +38614,10 @@ static int __pyx_pw_3_sa_23HieroCachingRuleFactory_1__cinit__(PyObject *__pyx_v_
       __pyx_v_require_aligned_terminal = ((int)1);
     }
     if (values[14]) {
-      __pyx_v_require_aligned_chunks = __Pyx_PyObject_IsTrue(values[14]); if (unlikely((__pyx_v_require_aligned_chunks == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 279; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+      __pyx_v_require_aligned_chunks = __Pyx_PyObject_IsTrue(values[14]); if (unlikely((__pyx_v_require_aligned_chunks == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 281; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
     } else {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":279
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":281
  *             bint require_aligned_terminal=True,
  *             # require each contiguous chunk of extracted rules to have at least one aligned word
  *             bint require_aligned_chunks=False,             # <<<<<<<<<<<<<<
@@ -36758,20 +38627,20 @@ static int __pyx_pw_3_sa_23HieroCachingRuleFactory_1__cinit__(PyObject *__pyx_v_
       __pyx_v_require_aligned_chunks = ((int)0);
     }
     if (values[15]) {
-      __pyx_v_train_max_initial_size = __Pyx_PyInt_AsUnsignedInt(values[15]); if (unlikely((__pyx_v_train_max_initial_size == (unsigned int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 281; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+      __pyx_v_train_max_initial_size = __Pyx_PyInt_AsUnsignedInt(values[15]); if (unlikely((__pyx_v_train_max_initial_size == (unsigned int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 283; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
     } else {
       __pyx_v_train_max_initial_size = ((unsigned int)10);
     }
     if (values[16]) {
-      __pyx_v_train_min_gap_size = __Pyx_PyInt_AsUnsignedInt(values[16]); if (unlikely((__pyx_v_train_min_gap_size == (unsigned int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 283; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+      __pyx_v_train_min_gap_size = __Pyx_PyInt_AsUnsignedInt(values[16]); if (unlikely((__pyx_v_train_min_gap_size == (unsigned int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 285; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
     } else {
       __pyx_v_train_min_gap_size = ((unsigned int)2);
     }
     if (values[17]) {
-      __pyx_v_tight_phrases = __Pyx_PyObject_IsTrue(values[17]); if (unlikely((__pyx_v_tight_phrases == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 285; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+      __pyx_v_tight_phrases = __Pyx_PyObject_IsTrue(values[17]); if (unlikely((__pyx_v_tight_phrases == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 287; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
     } else {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":285
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":287
  *             unsigned train_min_gap_size=2,
  *             # True if phrases should be tight, False otherwise (False == slower but better results)
  *             bint tight_phrases=False,             # <<<<<<<<<<<<<<
@@ -36781,10 +38650,10 @@ static int __pyx_pw_3_sa_23HieroCachingRuleFactory_1__cinit__(PyObject *__pyx_v_
       __pyx_v_tight_phrases = ((int)0);
     }
     if (values[18]) {
-      __pyx_v_use_baeza_yates = __Pyx_PyObject_IsTrue(values[18]); if (unlikely((__pyx_v_use_baeza_yates == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 287; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+      __pyx_v_use_baeza_yates = __Pyx_PyObject_IsTrue(values[18]); if (unlikely((__pyx_v_use_baeza_yates == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 289; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
     } else {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":287
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":289
  *             bint tight_phrases=False,
  *             # True to require use of double-binary alg, false otherwise
  *             bint use_baeza_yates=True,             # <<<<<<<<<<<<<<
@@ -36794,10 +38663,10 @@ static int __pyx_pw_3_sa_23HieroCachingRuleFactory_1__cinit__(PyObject *__pyx_v_
       __pyx_v_use_baeza_yates = ((int)1);
     }
     if (values[19]) {
-      __pyx_v_use_collocations = __Pyx_PyObject_IsTrue(values[19]); if (unlikely((__pyx_v_use_collocations == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 289; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+      __pyx_v_use_collocations = __Pyx_PyObject_IsTrue(values[19]); if (unlikely((__pyx_v_use_collocations == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 291; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
     } else {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":289
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":291
  *             bint use_baeza_yates=True,
  *             # True to enable used of precomputed collocations
  *             bint use_collocations=True,             # <<<<<<<<<<<<<<
@@ -36807,10 +38676,10 @@ static int __pyx_pw_3_sa_23HieroCachingRuleFactory_1__cinit__(PyObject *__pyx_v_
       __pyx_v_use_collocations = ((int)1);
     }
     if (values[20]) {
-      __pyx_v_use_index = __Pyx_PyObject_IsTrue(values[20]); if (unlikely((__pyx_v_use_index == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 291; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+      __pyx_v_use_index = __Pyx_PyObject_IsTrue(values[20]); if (unlikely((__pyx_v_use_index == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 293; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
     } else {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":291
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":293
  *             bint use_collocations=True,
  *             # True to enable use of precomputed inverted indices
  *             bint use_index=True):             # <<<<<<<<<<<<<<
@@ -36822,13 +38691,13 @@ static int __pyx_pw_3_sa_23HieroCachingRuleFactory_1__cinit__(PyObject *__pyx_v_
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("__cinit__", 0, 1, 21, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 249; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+  __Pyx_RaiseArgtupleInvalid("__cinit__", 0, 1, 21, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 251; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_AddTraceback("_sa.HieroCachingRuleFactory.__cinit__", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
   return -1;
   __pyx_L4_argument_unpacking_done:;
-  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_alignment), __pyx_ptype_3_sa_Alignment, 1, "alignment", 0))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 251; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_alignment), __pyx_ptype_3_sa_Alignment, 1, "alignment", 0))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 253; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_r = __pyx_pf_3_sa_23HieroCachingRuleFactory___cinit__(((struct __pyx_obj_3_sa_HieroCachingRuleFactory *)__pyx_v_self), __pyx_v_alignment, __pyx_v_by_slack_factor, __pyx_v_category, __pyx_v_max_chunks, __pyx_v_max_initial_size, __pyx_v_max_length, __pyx_v_max_nonterminals, __pyx_v_max_target_chunks, __pyx_v_max_target_length, __pyx_v_min_gap_size, __pyx_v_precompute_file, __pyx_v_precompute_secondary_rank, __pyx_v_precompute_rank, __pyx_v_require_aligned_terminal, __pyx_v_require_aligned_chunks, __pyx_v_train_max_initial_size, __pyx_v_train_min_gap_size, __pyx_v_tight_phrases, __pyx_v_use_baeza_yates, __pyx_v_use_collocations, __pyx_v_use_index);
   goto __pyx_L0;
   __pyx_L1_error:;
@@ -36838,7 +38707,7 @@ static int __pyx_pw_3_sa_23HieroCachingRuleFactory_1__cinit__(PyObject *__pyx_v_
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":249
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":251
  *     cdef IntList findexes1
  * 
  *     def __cinit__(self,             # <<<<<<<<<<<<<<
@@ -36860,21 +38729,21 @@ static int __pyx_pf_3_sa_23HieroCachingRuleFactory___cinit__(struct __pyx_obj_3_
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__cinit__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":297
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":299
  *         respectively.    This is because Chiang's model does not require
  *         them to be the same, therefore we don't either.'''
  *         self.rules = TrieTable(True) # cache             # <<<<<<<<<<<<<<
  *         self.rules.root = ExtendedTrieNode(phrase_location=PhraseLocation())
  *         if alignment is None:
  */
-  __pyx_t_1 = __Pyx_PyBool_FromLong(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 297; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_PyBool_FromLong(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 299; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 297; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 299; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_t_1);
   __Pyx_GIVEREF(__pyx_t_1);
   __pyx_t_1 = 0;
-  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_TrieTable)), ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 297; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_TrieTable)), ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 299; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
   __Pyx_GIVEREF(__pyx_t_1);
@@ -36883,20 +38752,20 @@ static int __pyx_pf_3_sa_23HieroCachingRuleFactory___cinit__(struct __pyx_obj_3_
   __pyx_v_self->rules = ((struct __pyx_obj_3_sa_TrieTable *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":298
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":300
  *         them to be the same, therefore we don't either.'''
  *         self.rules = TrieTable(True) # cache
  *         self.rules.root = ExtendedTrieNode(phrase_location=PhraseLocation())             # <<<<<<<<<<<<<<
  *         if alignment is None:
  *             raise Exception("Must specify an alignment object")
  */
-  __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 298; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 300; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_1));
-  __pyx_t_2 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_PhraseLocation)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 298; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_PhraseLocation)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 300; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
-  if (PyDict_SetItem(__pyx_t_1, ((PyObject *)__pyx_n_s__phrase_location), __pyx_t_2) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 298; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_1, ((PyObject *)__pyx_n_s__phrase_location), __pyx_t_2) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 300; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_2 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_ExtendedTrieNode)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_1)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 298; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_ExtendedTrieNode)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_1)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 300; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
   __Pyx_GIVEREF(__pyx_t_2);
@@ -36905,7 +38774,7 @@ static int __pyx_pf_3_sa_23HieroCachingRuleFactory___cinit__(struct __pyx_obj_3_
   __pyx_v_self->rules->root = __pyx_t_2;
   __pyx_t_2 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":299
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":301
  *         self.rules = TrieTable(True) # cache
  *         self.rules.root = ExtendedTrieNode(phrase_location=PhraseLocation())
  *         if alignment is None:             # <<<<<<<<<<<<<<
@@ -36915,23 +38784,23 @@ static int __pyx_pf_3_sa_23HieroCachingRuleFactory___cinit__(struct __pyx_obj_3_
   __pyx_t_3 = (((PyObject *)__pyx_v_alignment) == Py_None);
   if (__pyx_t_3) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":300
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":302
  *         self.rules.root = ExtendedTrieNode(phrase_location=PhraseLocation())
  *         if alignment is None:
  *             raise Exception("Must specify an alignment object")             # <<<<<<<<<<<<<<
  *         self.alignment = alignment
  * 
  */
-    __pyx_t_2 = PyObject_Call(__pyx_builtin_Exception, ((PyObject *)__pyx_k_tuple_107), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 300; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyObject_Call(__pyx_builtin_Exception, ((PyObject *)__pyx_k_tuple_109), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 302; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_Raise(__pyx_t_2, 0, 0, 0);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 300; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 302; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     goto __pyx_L3;
   }
   __pyx_L3:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":301
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":303
  *         if alignment is None:
  *             raise Exception("Must specify an alignment object")
  *         self.alignment = alignment             # <<<<<<<<<<<<<<
@@ -36944,7 +38813,7 @@ static int __pyx_pf_3_sa_23HieroCachingRuleFactory___cinit__(struct __pyx_obj_3_
   __Pyx_DECREF(((PyObject *)__pyx_v_self->alignment));
   __pyx_v_self->alignment = __pyx_v_alignment;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":305
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":307
  *         # grammar parameters and settings
  *         # NOTE: setting max_nonterminals > 2 is not currently supported in Hiero
  *         self.max_length = max_length             # <<<<<<<<<<<<<<
@@ -36953,7 +38822,7 @@ static int __pyx_pf_3_sa_23HieroCachingRuleFactory___cinit__(struct __pyx_obj_3_
  */
   __pyx_v_self->max_length = __pyx_v_max_length;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":306
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":308
  *         # NOTE: setting max_nonterminals > 2 is not currently supported in Hiero
  *         self.max_length = max_length
  *         self.max_nonterminals = max_nonterminals             # <<<<<<<<<<<<<<
@@ -36962,7 +38831,7 @@ static int __pyx_pf_3_sa_23HieroCachingRuleFactory___cinit__(struct __pyx_obj_3_
  */
   __pyx_v_self->max_nonterminals = __pyx_v_max_nonterminals;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":307
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":309
  *         self.max_length = max_length
  *         self.max_nonterminals = max_nonterminals
  *         self.max_initial_size = max_initial_size             # <<<<<<<<<<<<<<
@@ -36971,7 +38840,7 @@ static int __pyx_pf_3_sa_23HieroCachingRuleFactory___cinit__(struct __pyx_obj_3_
  */
   __pyx_v_self->max_initial_size = __pyx_v_max_initial_size;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":308
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":310
  *         self.max_nonterminals = max_nonterminals
  *         self.max_initial_size = max_initial_size
  *         self.train_max_initial_size = train_max_initial_size             # <<<<<<<<<<<<<<
@@ -36980,7 +38849,7 @@ static int __pyx_pf_3_sa_23HieroCachingRuleFactory___cinit__(struct __pyx_obj_3_
  */
   __pyx_v_self->train_max_initial_size = __pyx_v_train_max_initial_size;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":309
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":311
  *         self.max_initial_size = max_initial_size
  *         self.train_max_initial_size = train_max_initial_size
  *         self.min_gap_size = min_gap_size             # <<<<<<<<<<<<<<
@@ -36989,7 +38858,7 @@ static int __pyx_pf_3_sa_23HieroCachingRuleFactory___cinit__(struct __pyx_obj_3_
  */
   __pyx_v_self->min_gap_size = __pyx_v_min_gap_size;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":310
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":312
  *         self.train_max_initial_size = train_max_initial_size
  *         self.min_gap_size = min_gap_size
  *         self.train_min_gap_size = train_min_gap_size             # <<<<<<<<<<<<<<
@@ -36998,20 +38867,20 @@ static int __pyx_pf_3_sa_23HieroCachingRuleFactory___cinit__(struct __pyx_obj_3_
  */
   __pyx_v_self->train_min_gap_size = __pyx_v_train_min_gap_size;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":311
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":313
  *         self.min_gap_size = min_gap_size
  *         self.train_min_gap_size = train_min_gap_size
  *         self.category = sym_fromstring(category, False)             # <<<<<<<<<<<<<<
  * 
  *         if max_chunks is None:
  */
-  __pyx_t_2 = __Pyx_GetName(__pyx_m, __pyx_n_s__sym_fromstring); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 311; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = __Pyx_GetName(__pyx_m, __pyx_n_s__sym_fromstring); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 313; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_1 = PyBytes_FromString(__pyx_v_category); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 311; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyBytes_FromString(__pyx_v_category); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 313; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_1));
-  __pyx_t_4 = __Pyx_PyBool_FromLong(0); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 311; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_4 = __Pyx_PyBool_FromLong(0); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 313; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_4);
-  __pyx_t_5 = PyTuple_New(2); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 311; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_5 = PyTuple_New(2); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 313; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_5);
   PyTuple_SET_ITEM(__pyx_t_5, 0, ((PyObject *)__pyx_t_1));
   __Pyx_GIVEREF(((PyObject *)__pyx_t_1));
@@ -37019,15 +38888,15 @@ static int __pyx_pf_3_sa_23HieroCachingRuleFactory___cinit__(struct __pyx_obj_3_
   __Pyx_GIVEREF(__pyx_t_4);
   __pyx_t_1 = 0;
   __pyx_t_4 = 0;
-  __pyx_t_4 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_5), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 311; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_4 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_5), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 313; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_4);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __Pyx_DECREF(((PyObject *)__pyx_t_5)); __pyx_t_5 = 0;
-  __pyx_t_6 = __Pyx_PyInt_AsInt(__pyx_t_4); if (unlikely((__pyx_t_6 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 311; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_6 = __Pyx_PyInt_AsInt(__pyx_t_4); if (unlikely((__pyx_t_6 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 313; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
   __pyx_v_self->category = __pyx_t_6;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":313
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":315
  *         self.category = sym_fromstring(category, False)
  * 
  *         if max_chunks is None:             # <<<<<<<<<<<<<<
@@ -37037,7 +38906,7 @@ static int __pyx_pf_3_sa_23HieroCachingRuleFactory___cinit__(struct __pyx_obj_3_
   __pyx_t_3 = (__pyx_v_max_chunks == Py_None);
   if (__pyx_t_3) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":314
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":316
  * 
  *         if max_chunks is None:
  *             self.max_chunks = self.max_nonterminals + 1             # <<<<<<<<<<<<<<
@@ -37049,19 +38918,19 @@ static int __pyx_pf_3_sa_23HieroCachingRuleFactory___cinit__(struct __pyx_obj_3_
   }
   /*else*/ {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":316
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":318
  *             self.max_chunks = self.max_nonterminals + 1
  *         else:
  *             self.max_chunks = max_chunks             # <<<<<<<<<<<<<<
  * 
  *         if max_target_chunks is None:
  */
-    __pyx_t_6 = __Pyx_PyInt_AsInt(__pyx_v_max_chunks); if (unlikely((__pyx_t_6 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 316; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = __Pyx_PyInt_AsInt(__pyx_v_max_chunks); if (unlikely((__pyx_t_6 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 318; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __pyx_v_self->max_chunks = __pyx_t_6;
   }
   __pyx_L4:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":318
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":320
  *             self.max_chunks = max_chunks
  * 
  *         if max_target_chunks is None:             # <<<<<<<<<<<<<<
@@ -37071,7 +38940,7 @@ static int __pyx_pf_3_sa_23HieroCachingRuleFactory___cinit__(struct __pyx_obj_3_
   __pyx_t_3 = (__pyx_v_max_target_chunks == Py_None);
   if (__pyx_t_3) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":319
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":321
  * 
  *         if max_target_chunks is None:
  *             self.max_target_chunks = self.max_nonterminals + 1             # <<<<<<<<<<<<<<
@@ -37083,19 +38952,19 @@ static int __pyx_pf_3_sa_23HieroCachingRuleFactory___cinit__(struct __pyx_obj_3_
   }
   /*else*/ {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":321
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":323
  *             self.max_target_chunks = self.max_nonterminals + 1
  *         else:
  *             self.max_target_chunks = max_target_chunks             # <<<<<<<<<<<<<<
  * 
  *         if max_target_length is None:
  */
-    __pyx_t_6 = __Pyx_PyInt_AsInt(__pyx_v_max_target_chunks); if (unlikely((__pyx_t_6 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 321; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = __Pyx_PyInt_AsInt(__pyx_v_max_target_chunks); if (unlikely((__pyx_t_6 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 323; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __pyx_v_self->max_target_chunks = __pyx_t_6;
   }
   __pyx_L5:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":323
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":325
  *             self.max_target_chunks = max_target_chunks
  * 
  *         if max_target_length is None:             # <<<<<<<<<<<<<<
@@ -37105,7 +38974,7 @@ static int __pyx_pf_3_sa_23HieroCachingRuleFactory___cinit__(struct __pyx_obj_3_
   __pyx_t_3 = (__pyx_v_max_target_length == Py_None);
   if (__pyx_t_3) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":324
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":326
  * 
  *         if max_target_length is None:
  *             self.max_target_length = max_initial_size             # <<<<<<<<<<<<<<
@@ -37117,26 +38986,26 @@ static int __pyx_pf_3_sa_23HieroCachingRuleFactory___cinit__(struct __pyx_obj_3_
   }
   /*else*/ {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":326
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":328
  *             self.max_target_length = max_initial_size
  *         else:
  *             self.max_target_length = max_target_length             # <<<<<<<<<<<<<<
  * 
  *         # algorithmic parameters and settings
  */
-    __pyx_t_6 = __Pyx_PyInt_AsInt(__pyx_v_max_target_length); if (unlikely((__pyx_t_6 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 326; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = __Pyx_PyInt_AsInt(__pyx_v_max_target_length); if (unlikely((__pyx_t_6 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 328; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __pyx_v_self->max_target_length = __pyx_t_6;
   }
   __pyx_L6:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":329
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":331
  * 
  *         # algorithmic parameters and settings
  *         self.precomputed_collocations = {}             # <<<<<<<<<<<<<<
  *         self.precomputed_index = {}
  *         self.use_index = use_index
  */
-  __pyx_t_4 = PyDict_New(); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 329; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_4 = PyDict_New(); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 331; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_4));
   __Pyx_GIVEREF(((PyObject *)__pyx_t_4));
   __Pyx_GOTREF(__pyx_v_self->precomputed_collocations);
@@ -37144,14 +39013,14 @@ static int __pyx_pf_3_sa_23HieroCachingRuleFactory___cinit__(struct __pyx_obj_3_
   __pyx_v_self->precomputed_collocations = ((PyObject *)__pyx_t_4);
   __pyx_t_4 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":330
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":332
  *         # algorithmic parameters and settings
  *         self.precomputed_collocations = {}
  *         self.precomputed_index = {}             # <<<<<<<<<<<<<<
  *         self.use_index = use_index
  *         self.use_collocations = use_collocations
  */
-  __pyx_t_4 = PyDict_New(); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 330; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_4 = PyDict_New(); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 332; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_4));
   __Pyx_GIVEREF(((PyObject *)__pyx_t_4));
   __Pyx_GOTREF(__pyx_v_self->precomputed_index);
@@ -37159,7 +39028,7 @@ static int __pyx_pf_3_sa_23HieroCachingRuleFactory___cinit__(struct __pyx_obj_3_
   __pyx_v_self->precomputed_index = ((PyObject *)__pyx_t_4);
   __pyx_t_4 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":331
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":333
  *         self.precomputed_collocations = {}
  *         self.precomputed_index = {}
  *         self.use_index = use_index             # <<<<<<<<<<<<<<
@@ -37168,7 +39037,7 @@ static int __pyx_pf_3_sa_23HieroCachingRuleFactory___cinit__(struct __pyx_obj_3_
  */
   __pyx_v_self->use_index = __pyx_v_use_index;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":332
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":334
  *         self.precomputed_index = {}
  *         self.use_index = use_index
  *         self.use_collocations = use_collocations             # <<<<<<<<<<<<<<
@@ -37177,14 +39046,14 @@ static int __pyx_pf_3_sa_23HieroCachingRuleFactory___cinit__(struct __pyx_obj_3_
  */
   __pyx_v_self->use_collocations = __pyx_v_use_collocations;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":333
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":335
  *         self.use_index = use_index
  *         self.use_collocations = use_collocations
  *         self.max_rank = {}             # <<<<<<<<<<<<<<
  *         self.precompute_file = precompute_file
  *         self.precompute_rank = precompute_rank
  */
-  __pyx_t_4 = PyDict_New(); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 333; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_4 = PyDict_New(); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 335; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_4));
   __Pyx_GIVEREF(((PyObject *)__pyx_t_4));
   __Pyx_GOTREF(__pyx_v_self->max_rank);
@@ -37192,7 +39061,7 @@ static int __pyx_pf_3_sa_23HieroCachingRuleFactory___cinit__(struct __pyx_obj_3_
   __pyx_v_self->max_rank = ((PyObject *)__pyx_t_4);
   __pyx_t_4 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":334
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":336
  *         self.use_collocations = use_collocations
  *         self.max_rank = {}
  *         self.precompute_file = precompute_file             # <<<<<<<<<<<<<<
@@ -37205,7 +39074,7 @@ static int __pyx_pf_3_sa_23HieroCachingRuleFactory___cinit__(struct __pyx_obj_3_
   __Pyx_DECREF(__pyx_v_self->precompute_file);
   __pyx_v_self->precompute_file = __pyx_v_precompute_file;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":335
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":337
  *         self.max_rank = {}
  *         self.precompute_file = precompute_file
  *         self.precompute_rank = precompute_rank             # <<<<<<<<<<<<<<
@@ -37214,7 +39083,7 @@ static int __pyx_pf_3_sa_23HieroCachingRuleFactory___cinit__(struct __pyx_obj_3_
  */
   __pyx_v_self->precompute_rank = __pyx_v_precompute_rank;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":336
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":338
  *         self.precompute_file = precompute_file
  *         self.precompute_rank = precompute_rank
  *         self.precompute_secondary_rank = precompute_secondary_rank             # <<<<<<<<<<<<<<
@@ -37223,7 +39092,7 @@ static int __pyx_pf_3_sa_23HieroCachingRuleFactory___cinit__(struct __pyx_obj_3_
  */
   __pyx_v_self->precompute_secondary_rank = __pyx_v_precompute_secondary_rank;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":337
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":339
  *         self.precompute_rank = precompute_rank
  *         self.precompute_secondary_rank = precompute_secondary_rank
  *         self.use_baeza_yates = use_baeza_yates             # <<<<<<<<<<<<<<
@@ -37232,7 +39101,7 @@ static int __pyx_pf_3_sa_23HieroCachingRuleFactory___cinit__(struct __pyx_obj_3_
  */
   __pyx_v_self->use_baeza_yates = __pyx_v_use_baeza_yates;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":338
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":340
  *         self.precompute_secondary_rank = precompute_secondary_rank
  *         self.use_baeza_yates = use_baeza_yates
  *         self.by_slack_factor = by_slack_factor             # <<<<<<<<<<<<<<
@@ -37241,7 +39110,7 @@ static int __pyx_pf_3_sa_23HieroCachingRuleFactory___cinit__(struct __pyx_obj_3_
  */
   __pyx_v_self->by_slack_factor = __pyx_v_by_slack_factor;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":339
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":341
  *         self.use_baeza_yates = use_baeza_yates
  *         self.by_slack_factor = by_slack_factor
  *         if tight_phrases:             # <<<<<<<<<<<<<<
@@ -37250,7 +39119,7 @@ static int __pyx_pf_3_sa_23HieroCachingRuleFactory___cinit__(struct __pyx_obj_3_
  */
   if (__pyx_v_tight_phrases) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":340
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":342
  *         self.by_slack_factor = by_slack_factor
  *         if tight_phrases:
  *             self.tight_phrases = 1             # <<<<<<<<<<<<<<
@@ -37262,7 +39131,7 @@ static int __pyx_pf_3_sa_23HieroCachingRuleFactory___cinit__(struct __pyx_obj_3_
   }
   /*else*/ {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":342
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":344
  *             self.tight_phrases = 1
  *         else:
  *             self.tight_phrases = 0             # <<<<<<<<<<<<<<
@@ -37273,7 +39142,7 @@ static int __pyx_pf_3_sa_23HieroCachingRuleFactory___cinit__(struct __pyx_obj_3_
   }
   __pyx_L7:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":344
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":346
  *             self.tight_phrases = 0
  * 
  *         if require_aligned_chunks:             # <<<<<<<<<<<<<<
@@ -37282,7 +39151,7 @@ static int __pyx_pf_3_sa_23HieroCachingRuleFactory___cinit__(struct __pyx_obj_3_
  */
   if (__pyx_v_require_aligned_chunks) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":346
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":348
  *         if require_aligned_chunks:
  *             # one condition is a stronger version of the other.
  *             self.require_aligned_chunks = 1             # <<<<<<<<<<<<<<
@@ -37291,7 +39160,7 @@ static int __pyx_pf_3_sa_23HieroCachingRuleFactory___cinit__(struct __pyx_obj_3_
  */
     __pyx_v_self->require_aligned_chunks = 1;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":347
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":349
  *             # one condition is a stronger version of the other.
  *             self.require_aligned_chunks = 1
  *             self.require_aligned_terminal = 1             # <<<<<<<<<<<<<<
@@ -37302,7 +39171,7 @@ static int __pyx_pf_3_sa_23HieroCachingRuleFactory___cinit__(struct __pyx_obj_3_
     goto __pyx_L8;
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":348
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":350
  *             self.require_aligned_chunks = 1
  *             self.require_aligned_terminal = 1
  *         elif require_aligned_terminal:             # <<<<<<<<<<<<<<
@@ -37311,7 +39180,7 @@ static int __pyx_pf_3_sa_23HieroCachingRuleFactory___cinit__(struct __pyx_obj_3_
  */
   if (__pyx_v_require_aligned_terminal) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":349
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":351
  *             self.require_aligned_terminal = 1
  *         elif require_aligned_terminal:
  *             self.require_aligned_chunks = 0             # <<<<<<<<<<<<<<
@@ -37320,7 +39189,7 @@ static int __pyx_pf_3_sa_23HieroCachingRuleFactory___cinit__(struct __pyx_obj_3_
  */
     __pyx_v_self->require_aligned_chunks = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":350
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":352
  *         elif require_aligned_terminal:
  *             self.require_aligned_chunks = 0
  *             self.require_aligned_terminal = 1             # <<<<<<<<<<<<<<
@@ -37332,7 +39201,7 @@ static int __pyx_pf_3_sa_23HieroCachingRuleFactory___cinit__(struct __pyx_obj_3_
   }
   /*else*/ {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":352
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":354
  *             self.require_aligned_terminal = 1
  *         else:
  *             self.require_aligned_chunks = 0             # <<<<<<<<<<<<<<
@@ -37341,7 +39210,7 @@ static int __pyx_pf_3_sa_23HieroCachingRuleFactory___cinit__(struct __pyx_obj_3_
  */
     __pyx_v_self->require_aligned_chunks = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":353
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":355
  *         else:
  *             self.require_aligned_chunks = 0
  *             self.require_aligned_terminal = 0             # <<<<<<<<<<<<<<
@@ -37352,7 +39221,7 @@ static int __pyx_pf_3_sa_23HieroCachingRuleFactory___cinit__(struct __pyx_obj_3_
   }
   __pyx_L8:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":357
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":359
  * 
  *         # diagnostics
  *         self.prev_norm_prefix = ()             # <<<<<<<<<<<<<<
@@ -37365,17 +39234,17 @@ static int __pyx_pf_3_sa_23HieroCachingRuleFactory___cinit__(struct __pyx_obj_3_
   __Pyx_DECREF(__pyx_v_self->prev_norm_prefix);
   __pyx_v_self->prev_norm_prefix = ((PyObject *)__pyx_empty_tuple);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":359
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":361
  *         self.prev_norm_prefix = ()
  * 
  *         self.findexes = IntList(initial_len=10)             # <<<<<<<<<<<<<<
  *         self.findexes1 = IntList(initial_len=10)
  * 
  */
-  __pyx_t_4 = PyDict_New(); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 359; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_4 = PyDict_New(); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 361; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_4));
-  if (PyDict_SetItem(__pyx_t_4, ((PyObject *)__pyx_n_s__initial_len), __pyx_int_10) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 359; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_t_5 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_4)); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 359; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_4, ((PyObject *)__pyx_n_s__initial_len), __pyx_int_10) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 361; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_5 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_4)); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 361; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_5);
   __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
   __Pyx_GIVEREF(__pyx_t_5);
@@ -37384,17 +39253,17 @@ static int __pyx_pf_3_sa_23HieroCachingRuleFactory___cinit__(struct __pyx_obj_3_
   __pyx_v_self->findexes = ((struct __pyx_obj_3_sa_IntList *)__pyx_t_5);
   __pyx_t_5 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":360
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":362
  * 
  *         self.findexes = IntList(initial_len=10)
  *         self.findexes1 = IntList(initial_len=10)             # <<<<<<<<<<<<<<
  * 
- *     def configure(self, SuffixArray fsarray, DataArray edarray, Sampler sampler):
+ *     def configure(self, SuffixArray fsarray, DataArray edarray,
  */
-  __pyx_t_5 = PyDict_New(); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 360; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_5 = PyDict_New(); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 362; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_5));
-  if (PyDict_SetItem(__pyx_t_5, ((PyObject *)__pyx_n_s__initial_len), __pyx_int_10) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 360; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_t_4 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_5)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 360; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_5, ((PyObject *)__pyx_n_s__initial_len), __pyx_int_10) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 362; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_4 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_5)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 362; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_4);
   __Pyx_DECREF(((PyObject *)__pyx_t_5)); __pyx_t_5 = 0;
   __Pyx_GIVEREF(__pyx_t_4);
@@ -37424,16 +39293,18 @@ static PyObject *__pyx_pw_3_sa_23HieroCachingRuleFactory_3configure(PyObject *__
   struct __pyx_obj_3_sa_SuffixArray *__pyx_v_fsarray = 0;
   struct __pyx_obj_3_sa_DataArray *__pyx_v_edarray = 0;
   struct __pyx_obj_3_sa_Sampler *__pyx_v_sampler = 0;
+  struct __pyx_obj_3_sa_Scorer *__pyx_v_scorer = 0;
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("configure (wrapper)", 0);
   {
-    static PyObject **__pyx_pyargnames[] = {&__pyx_n_s__fsarray,&__pyx_n_s__edarray,&__pyx_n_s__sampler,0};
-    PyObject* values[3] = {0,0,0};
+    static PyObject **__pyx_pyargnames[] = {&__pyx_n_s__fsarray,&__pyx_n_s__edarray,&__pyx_n_s__sampler,&__pyx_n_s__scorer,0};
+    PyObject* values[4] = {0,0,0,0};
     if (unlikely(__pyx_kwds)) {
       Py_ssize_t kw_args;
       const Py_ssize_t pos_args = PyTuple_GET_SIZE(__pyx_args);
       switch (pos_args) {
+        case  4: values[3] = PyTuple_GET_ITEM(__pyx_args, 3);
         case  3: values[2] = PyTuple_GET_ITEM(__pyx_args, 2);
         case  2: values[1] = PyTuple_GET_ITEM(__pyx_args, 1);
         case  1: values[0] = PyTuple_GET_ITEM(__pyx_args, 0);
@@ -37448,40 +39319,48 @@ static PyObject *__pyx_pw_3_sa_23HieroCachingRuleFactory_3configure(PyObject *__
         case  1:
         if (likely((values[1] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__edarray)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("configure", 1, 3, 3, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 362; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("configure", 1, 4, 4, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 364; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
         case  2:
         if (likely((values[2] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__sampler)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("configure", 1, 3, 3, 2); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 362; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("configure", 1, 4, 4, 2); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 364; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+        }
+        case  3:
+        if (likely((values[3] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__scorer)) != 0)) kw_args--;
+        else {
+          __Pyx_RaiseArgtupleInvalid("configure", 1, 4, 4, 3); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 364; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "configure") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 362; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "configure") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 364; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
-    } else if (PyTuple_GET_SIZE(__pyx_args) != 3) {
+    } else if (PyTuple_GET_SIZE(__pyx_args) != 4) {
       goto __pyx_L5_argtuple_error;
     } else {
       values[0] = PyTuple_GET_ITEM(__pyx_args, 0);
       values[1] = PyTuple_GET_ITEM(__pyx_args, 1);
       values[2] = PyTuple_GET_ITEM(__pyx_args, 2);
+      values[3] = PyTuple_GET_ITEM(__pyx_args, 3);
     }
     __pyx_v_fsarray = ((struct __pyx_obj_3_sa_SuffixArray *)values[0]);
     __pyx_v_edarray = ((struct __pyx_obj_3_sa_DataArray *)values[1]);
     __pyx_v_sampler = ((struct __pyx_obj_3_sa_Sampler *)values[2]);
+    __pyx_v_scorer = ((struct __pyx_obj_3_sa_Scorer *)values[3]);
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("configure", 1, 3, 3, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 362; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+  __Pyx_RaiseArgtupleInvalid("configure", 1, 4, 4, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 364; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_AddTraceback("_sa.HieroCachingRuleFactory.configure", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
   return NULL;
   __pyx_L4_argument_unpacking_done:;
-  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_fsarray), __pyx_ptype_3_sa_SuffixArray, 1, "fsarray", 0))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 362; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_edarray), __pyx_ptype_3_sa_DataArray, 1, "edarray", 0))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 362; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_sampler), __pyx_ptype_3_sa_Sampler, 1, "sampler", 0))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 362; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_r = __pyx_pf_3_sa_23HieroCachingRuleFactory_2configure(((struct __pyx_obj_3_sa_HieroCachingRuleFactory *)__pyx_v_self), __pyx_v_fsarray, __pyx_v_edarray, __pyx_v_sampler);
+  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_fsarray), __pyx_ptype_3_sa_SuffixArray, 1, "fsarray", 0))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 364; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_edarray), __pyx_ptype_3_sa_DataArray, 1, "edarray", 0))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 364; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_sampler), __pyx_ptype_3_sa_Sampler, 1, "sampler", 0))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 365; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_scorer), __pyx_ptype_3_sa_Scorer, 1, "scorer", 0))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 365; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_r = __pyx_pf_3_sa_23HieroCachingRuleFactory_2configure(((struct __pyx_obj_3_sa_HieroCachingRuleFactory *)__pyx_v_self), __pyx_v_fsarray, __pyx_v_edarray, __pyx_v_sampler, __pyx_v_scorer);
   goto __pyx_L0;
   __pyx_L1_error:;
   __pyx_r = NULL;
@@ -37490,15 +39369,15 @@ static PyObject *__pyx_pw_3_sa_23HieroCachingRuleFactory_3configure(PyObject *__
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":362
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":364
  *         self.findexes1 = IntList(initial_len=10)
  * 
- *     def configure(self, SuffixArray fsarray, DataArray edarray, Sampler sampler):             # <<<<<<<<<<<<<<
+ *     def configure(self, SuffixArray fsarray, DataArray edarray,             # <<<<<<<<<<<<<<
+ *             Sampler sampler, Scorer scorer):
  *         '''This gives the RuleFactory access to the Context object.
- *         Here we also use it to precompute the most expensive intersections
  */
 
-static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_2configure(struct __pyx_obj_3_sa_HieroCachingRuleFactory *__pyx_v_self, struct __pyx_obj_3_sa_SuffixArray *__pyx_v_fsarray, struct __pyx_obj_3_sa_DataArray *__pyx_v_edarray, struct __pyx_obj_3_sa_Sampler *__pyx_v_sampler) {
+static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_2configure(struct __pyx_obj_3_sa_HieroCachingRuleFactory *__pyx_v_self, struct __pyx_obj_3_sa_SuffixArray *__pyx_v_fsarray, struct __pyx_obj_3_sa_DataArray *__pyx_v_edarray, struct __pyx_obj_3_sa_Sampler *__pyx_v_sampler, struct __pyx_obj_3_sa_Scorer *__pyx_v_scorer) {
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
   PyObject *__pyx_t_1 = NULL;
@@ -37508,7 +39387,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_2configure(struct __pyx
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("configure", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":366
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":369
  *         Here we also use it to precompute the most expensive intersections
  *         in the corpus quickly.'''
  *         self.fsa = fsarray             # <<<<<<<<<<<<<<
@@ -37521,7 +39400,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_2configure(struct __pyx
   __Pyx_DECREF(((PyObject *)__pyx_v_self->fsa));
   __pyx_v_self->fsa = __pyx_v_fsarray;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":367
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":370
  *         in the corpus quickly.'''
  *         self.fsa = fsarray
  *         self.fda = fsarray.darray             # <<<<<<<<<<<<<<
@@ -37534,7 +39413,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_2configure(struct __pyx
   __Pyx_DECREF(((PyObject *)__pyx_v_self->fda));
   __pyx_v_self->fda = __pyx_v_fsarray->darray;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":368
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":371
  *         self.fsa = fsarray
  *         self.fda = fsarray.darray
  *         self.eda = edarray             # <<<<<<<<<<<<<<
@@ -37547,7 +39426,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_2configure(struct __pyx
   __Pyx_DECREF(((PyObject *)__pyx_v_self->eda));
   __pyx_v_self->eda = __pyx_v_edarray;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":369
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":372
  *         self.fda = fsarray.darray
  *         self.eda = edarray
  *         self.fid2symid = self.set_idmap(self.fda)             # <<<<<<<<<<<<<<
@@ -37556,17 +39435,17 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_2configure(struct __pyx
  */
   __pyx_t_1 = ((PyObject *)__pyx_v_self->fda);
   __Pyx_INCREF(__pyx_t_1);
-  __pyx_t_2 = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->set_idmap(__pyx_v_self, ((struct __pyx_obj_3_sa_DataArray *)__pyx_t_1)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 369; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->set_idmap(__pyx_v_self, ((struct __pyx_obj_3_sa_DataArray *)__pyx_t_1)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 372; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  if (!(likely(((__pyx_t_2) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_2, __pyx_ptype_3_sa_IntList))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 369; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (!(likely(((__pyx_t_2) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_2, __pyx_ptype_3_sa_IntList))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 372; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GIVEREF(__pyx_t_2);
   __Pyx_GOTREF(__pyx_v_self->fid2symid);
   __Pyx_DECREF(((PyObject *)__pyx_v_self->fid2symid));
   __pyx_v_self->fid2symid = ((struct __pyx_obj_3_sa_IntList *)__pyx_t_2);
   __pyx_t_2 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":370
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":373
  *         self.eda = edarray
  *         self.fid2symid = self.set_idmap(self.fda)
  *         self.eid2symid = self.set_idmap(self.eda)             # <<<<<<<<<<<<<<
@@ -37575,36 +39454,36 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_2configure(struct __pyx
  */
   __pyx_t_2 = ((PyObject *)__pyx_v_self->eda);
   __Pyx_INCREF(__pyx_t_2);
-  __pyx_t_1 = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->set_idmap(__pyx_v_self, ((struct __pyx_obj_3_sa_DataArray *)__pyx_t_2)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 370; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->set_idmap(__pyx_v_self, ((struct __pyx_obj_3_sa_DataArray *)__pyx_t_2)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 373; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  if (!(likely(((__pyx_t_1) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_1, __pyx_ptype_3_sa_IntList))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 370; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (!(likely(((__pyx_t_1) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_1, __pyx_ptype_3_sa_IntList))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 373; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GIVEREF(__pyx_t_1);
   __Pyx_GOTREF(__pyx_v_self->eid2symid);
   __Pyx_DECREF(((PyObject *)__pyx_v_self->eid2symid));
   __pyx_v_self->eid2symid = ((struct __pyx_obj_3_sa_IntList *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":371
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":374
  *         self.fid2symid = self.set_idmap(self.fda)
  *         self.eid2symid = self.set_idmap(self.eda)
  *         self.precompute()             # <<<<<<<<<<<<<<
  *         self.sampler = sampler
- * 
+ *         self.scorer = scorer
  */
-  __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_v_self), __pyx_n_s__precompute); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 371; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_v_self), __pyx_n_s__precompute); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 374; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 371; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 374; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":372
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":375
  *         self.eid2symid = self.set_idmap(self.eda)
  *         self.precompute()
  *         self.sampler = sampler             # <<<<<<<<<<<<<<
+ *         self.scorer = scorer
  * 
- *     cdef set_idmap(self, DataArray darray):
  */
   __Pyx_INCREF(((PyObject *)__pyx_v_sampler));
   __Pyx_GIVEREF(((PyObject *)__pyx_v_sampler));
@@ -37612,6 +39491,19 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_2configure(struct __pyx
   __Pyx_DECREF(((PyObject *)__pyx_v_self->sampler));
   __pyx_v_self->sampler = __pyx_v_sampler;
 
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":376
+ *         self.precompute()
+ *         self.sampler = sampler
+ *         self.scorer = scorer             # <<<<<<<<<<<<<<
+ * 
+ *     cdef set_idmap(self, DataArray darray):
+ */
+  __Pyx_INCREF(((PyObject *)__pyx_v_scorer));
+  __Pyx_GIVEREF(((PyObject *)__pyx_v_scorer));
+  __Pyx_GOTREF(__pyx_v_self->scorer);
+  __Pyx_DECREF(((PyObject *)__pyx_v_self->scorer));
+  __pyx_v_self->scorer = __pyx_v_scorer;
+
   __pyx_r = Py_None; __Pyx_INCREF(Py_None);
   goto __pyx_L0;
   __pyx_L1_error:;
@@ -37625,8 +39517,8 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_2configure(struct __pyx
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":374
- *         self.sampler = sampler
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":378
+ *         self.scorer = scorer
  * 
  *     cdef set_idmap(self, DataArray darray):             # <<<<<<<<<<<<<<
  *         cdef int word_id, new_word_id, N
@@ -37652,7 +39544,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_set_idmap(CYTHON_UNUSED
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("set_idmap", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":378
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":382
  *         cdef IntList idmap
  * 
  *         N = len(darray.id2word)             # <<<<<<<<<<<<<<
@@ -37661,30 +39553,30 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_set_idmap(CYTHON_UNUSED
  */
   __pyx_t_1 = __pyx_v_darray->id2word;
   __Pyx_INCREF(__pyx_t_1);
-  __pyx_t_2 = PyObject_Length(__pyx_t_1); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 378; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyObject_Length(__pyx_t_1); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 382; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __pyx_v_N = __pyx_t_2;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":379
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":383
  * 
  *         N = len(darray.id2word)
  *         idmap = IntList(initial_len=N)             # <<<<<<<<<<<<<<
  *         for word_id from 0 <= word_id < N:
  *             new_word_id = sym_fromstring(darray.id2word[word_id], True)
  */
-  __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 379; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 383; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_1));
-  __pyx_t_3 = PyInt_FromLong(__pyx_v_N); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 379; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyInt_FromLong(__pyx_v_N); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 383; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
-  if (PyDict_SetItem(__pyx_t_1, ((PyObject *)__pyx_n_s__initial_len), __pyx_t_3) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 379; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_1, ((PyObject *)__pyx_n_s__initial_len), __pyx_t_3) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 383; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_1)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 379; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_1)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 383; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
   __pyx_v_idmap = ((struct __pyx_obj_3_sa_IntList *)__pyx_t_3);
   __pyx_t_3 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":380
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":384
  *         N = len(darray.id2word)
  *         idmap = IntList(initial_len=N)
  *         for word_id from 0 <= word_id < N:             # <<<<<<<<<<<<<<
@@ -37694,20 +39586,20 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_set_idmap(CYTHON_UNUSED
   __pyx_t_4 = __pyx_v_N;
   for (__pyx_v_word_id = 0; __pyx_v_word_id < __pyx_t_4; __pyx_v_word_id++) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":381
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":385
  *         idmap = IntList(initial_len=N)
  *         for word_id from 0 <= word_id < N:
  *             new_word_id = sym_fromstring(darray.id2word[word_id], True)             # <<<<<<<<<<<<<<
  *             idmap.arr[word_id] = new_word_id
  *         return idmap
  */
-    __pyx_t_3 = __Pyx_GetName(__pyx_m, __pyx_n_s__sym_fromstring); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 381; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = __Pyx_GetName(__pyx_m, __pyx_n_s__sym_fromstring); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 385; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_darray->id2word, __pyx_v_word_id, sizeof(int), PyInt_FromLong); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 381; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_darray->id2word, __pyx_v_word_id, sizeof(int), PyInt_FromLong); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 385; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_5 = __Pyx_PyBool_FromLong(1); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 381; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = __Pyx_PyBool_FromLong(1); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 385; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
-    __pyx_t_6 = PyTuple_New(2); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 381; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = PyTuple_New(2); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 385; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
     PyTuple_SET_ITEM(__pyx_t_6, 0, __pyx_t_1);
     __Pyx_GIVEREF(__pyx_t_1);
@@ -37715,15 +39607,15 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_set_idmap(CYTHON_UNUSED
     __Pyx_GIVEREF(__pyx_t_5);
     __pyx_t_1 = 0;
     __pyx_t_5 = 0;
-    __pyx_t_5 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_6), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 381; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_6), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 385; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __Pyx_DECREF(((PyObject *)__pyx_t_6)); __pyx_t_6 = 0;
-    __pyx_t_7 = __Pyx_PyInt_AsInt(__pyx_t_5); if (unlikely((__pyx_t_7 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 381; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_7 = __Pyx_PyInt_AsInt(__pyx_t_5); if (unlikely((__pyx_t_7 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 385; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
     __pyx_v_new_word_id = __pyx_t_7;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":382
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":386
  *         for word_id from 0 <= word_id < N:
  *             new_word_id = sym_fromstring(darray.id2word[word_id], True)
  *             idmap.arr[word_id] = new_word_id             # <<<<<<<<<<<<<<
@@ -37733,7 +39625,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_set_idmap(CYTHON_UNUSED
     (__pyx_v_idmap->arr[__pyx_v_word_id]) = __pyx_v_new_word_id;
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":383
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":387
  *             new_word_id = sym_fromstring(darray.id2word[word_id], True)
  *             idmap.arr[word_id] = new_word_id
  *         return idmap             # <<<<<<<<<<<<<<
@@ -37772,7 +39664,7 @@ static PyObject *__pyx_pw_3_sa_23HieroCachingRuleFactory_5pattern2phrase(PyObjec
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":386
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":390
  * 
  * 
  *     def pattern2phrase(self, pattern):             # <<<<<<<<<<<<<<
@@ -37801,7 +39693,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_4pattern2phrase(struct
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("pattern2phrase", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":388
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":392
  *     def pattern2phrase(self, pattern):
  *         # pattern is a tuple, which we must convert to a hiero Phrase
  *         result = ()             # <<<<<<<<<<<<<<
@@ -37811,7 +39703,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_4pattern2phrase(struct
   __Pyx_INCREF(((PyObject *)__pyx_empty_tuple));
   __pyx_v_result = __pyx_empty_tuple;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":389
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":393
  *         # pattern is a tuple, which we must convert to a hiero Phrase
  *         result = ()
  *         arity = 0             # <<<<<<<<<<<<<<
@@ -37821,7 +39713,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_4pattern2phrase(struct
   __Pyx_INCREF(__pyx_int_0);
   __pyx_v_arity = __pyx_int_0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":390
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":394
  *         result = ()
  *         arity = 0
  *         for word_id in pattern:             # <<<<<<<<<<<<<<
@@ -37832,7 +39724,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_4pattern2phrase(struct
     __pyx_t_1 = __pyx_v_pattern; __Pyx_INCREF(__pyx_t_1); __pyx_t_2 = 0;
     __pyx_t_3 = NULL;
   } else {
-    __pyx_t_2 = -1; __pyx_t_1 = PyObject_GetIter(__pyx_v_pattern); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 390; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = -1; __pyx_t_1 = PyObject_GetIter(__pyx_v_pattern); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 394; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __pyx_t_3 = Py_TYPE(__pyx_t_1)->tp_iternext;
   }
@@ -37842,21 +39734,21 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_4pattern2phrase(struct
       #if CYTHON_COMPILING_IN_CPYTHON
       __pyx_t_4 = PyList_GET_ITEM(__pyx_t_1, __pyx_t_2); __Pyx_INCREF(__pyx_t_4); __pyx_t_2++;
       #else
-      __pyx_t_4 = PySequence_ITEM(__pyx_t_1, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 390; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+      __pyx_t_4 = PySequence_ITEM(__pyx_t_1, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 394; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
       #endif
     } else if (!__pyx_t_3 && PyTuple_CheckExact(__pyx_t_1)) {
       if (__pyx_t_2 >= PyTuple_GET_SIZE(__pyx_t_1)) break;
       #if CYTHON_COMPILING_IN_CPYTHON
       __pyx_t_4 = PyTuple_GET_ITEM(__pyx_t_1, __pyx_t_2); __Pyx_INCREF(__pyx_t_4); __pyx_t_2++;
       #else
-      __pyx_t_4 = PySequence_ITEM(__pyx_t_1, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 390; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+      __pyx_t_4 = PySequence_ITEM(__pyx_t_1, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 394; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
       #endif
     } else {
       __pyx_t_4 = __pyx_t_3(__pyx_t_1);
       if (unlikely(!__pyx_t_4)) {
         if (PyErr_Occurred()) {
           if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-          else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 390; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 394; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         }
         break;
       }
@@ -37866,41 +39758,41 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_4pattern2phrase(struct
     __pyx_v_word_id = __pyx_t_4;
     __pyx_t_4 = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":391
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":395
  *         arity = 0
  *         for word_id in pattern:
  *             if word_id == -1:             # <<<<<<<<<<<<<<
  *                 arity = arity + 1
  *                 new_id = sym_setindex(self.category, arity)
  */
-    __pyx_t_4 = PyObject_RichCompare(__pyx_v_word_id, __pyx_int_neg_1, Py_EQ); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 391; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyObject_RichCompare(__pyx_v_word_id, __pyx_int_neg_1, Py_EQ); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 395; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 391; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 395; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     if (__pyx_t_5) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":392
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":396
  *         for word_id in pattern:
  *             if word_id == -1:
  *                 arity = arity + 1             # <<<<<<<<<<<<<<
  *                 new_id = sym_setindex(self.category, arity)
  *             else:
  */
-      __pyx_t_4 = PyNumber_Add(__pyx_v_arity, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 392; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyNumber_Add(__pyx_v_arity, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 396; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_DECREF(__pyx_v_arity);
       __pyx_v_arity = __pyx_t_4;
       __pyx_t_4 = 0;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":393
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":397
  *             if word_id == -1:
  *                 arity = arity + 1
  *                 new_id = sym_setindex(self.category, arity)             # <<<<<<<<<<<<<<
  *             else:
  *                 new_id = sym_fromstring(self.fda.id2word[word_id], True)
  */
-      __pyx_t_6 = __Pyx_PyInt_AsInt(__pyx_v_arity); if (unlikely((__pyx_t_6 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 393; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __pyx_t_4 = PyInt_FromLong(__pyx_f_3_sa_sym_setindex(__pyx_v_self->category, __pyx_t_6)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 393; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = __Pyx_PyInt_AsInt(__pyx_v_arity); if (unlikely((__pyx_t_6 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 397; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyInt_FromLong(__pyx_f_3_sa_sym_setindex(__pyx_v_self->category, __pyx_t_6)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 397; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_XDECREF(__pyx_v_new_id);
       __pyx_v_new_id = __pyx_t_4;
@@ -37909,20 +39801,20 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_4pattern2phrase(struct
     }
     /*else*/ {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":395
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":399
  *                 new_id = sym_setindex(self.category, arity)
  *             else:
  *                 new_id = sym_fromstring(self.fda.id2word[word_id], True)             # <<<<<<<<<<<<<<
  *             result = result + (new_id,)
  *         return Phrase(result)
  */
-      __pyx_t_4 = __Pyx_GetName(__pyx_m, __pyx_n_s__sym_fromstring); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 395; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = __Pyx_GetName(__pyx_m, __pyx_n_s__sym_fromstring); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 399; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_7 = PyObject_GetItem(__pyx_v_self->fda->id2word, __pyx_v_word_id); if (!__pyx_t_7) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 395; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_7 = PyObject_GetItem(__pyx_v_self->fda->id2word, __pyx_v_word_id); if (!__pyx_t_7) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 399; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_7);
-      __pyx_t_8 = __Pyx_PyBool_FromLong(1); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 395; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = __Pyx_PyBool_FromLong(1); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 399; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_8);
-      __pyx_t_9 = PyTuple_New(2); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 395; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_9 = PyTuple_New(2); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 399; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_9);
       PyTuple_SET_ITEM(__pyx_t_9, 0, __pyx_t_7);
       __Pyx_GIVEREF(__pyx_t_7);
@@ -37930,7 +39822,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_4pattern2phrase(struct
       __Pyx_GIVEREF(__pyx_t_8);
       __pyx_t_7 = 0;
       __pyx_t_8 = 0;
-      __pyx_t_8 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_9), NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 395; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_9), NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 399; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_8);
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       __Pyx_DECREF(((PyObject *)__pyx_t_9)); __pyx_t_9 = 0;
@@ -37940,19 +39832,19 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_4pattern2phrase(struct
     }
     __pyx_L5:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":396
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":400
  *             else:
  *                 new_id = sym_fromstring(self.fda.id2word[word_id], True)
  *             result = result + (new_id,)             # <<<<<<<<<<<<<<
  *         return Phrase(result)
  * 
  */
-    __pyx_t_8 = PyTuple_New(1); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 396; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_8 = PyTuple_New(1); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 400; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_8);
     __Pyx_INCREF(__pyx_v_new_id);
     PyTuple_SET_ITEM(__pyx_t_8, 0, __pyx_v_new_id);
     __Pyx_GIVEREF(__pyx_v_new_id);
-    __pyx_t_9 = PyNumber_Add(((PyObject *)__pyx_v_result), ((PyObject *)__pyx_t_8)); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 396; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_9 = PyNumber_Add(((PyObject *)__pyx_v_result), ((PyObject *)__pyx_t_8)); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 400; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(((PyObject *)__pyx_t_9));
     __Pyx_DECREF(((PyObject *)__pyx_t_8)); __pyx_t_8 = 0;
     __Pyx_DECREF(((PyObject *)__pyx_v_result));
@@ -37961,7 +39853,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_4pattern2phrase(struct
   }
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":397
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":401
  *                 new_id = sym_fromstring(self.fda.id2word[word_id], True)
  *             result = result + (new_id,)
  *         return Phrase(result)             # <<<<<<<<<<<<<<
@@ -37969,12 +39861,12 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_4pattern2phrase(struct
  *     def pattern2phrase_plus(self, pattern):
  */
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 397; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 401; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_INCREF(((PyObject *)__pyx_v_result));
   PyTuple_SET_ITEM(__pyx_t_1, 0, ((PyObject *)__pyx_v_result));
   __Pyx_GIVEREF(((PyObject *)__pyx_v_result));
-  __pyx_t_9 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_Phrase)), ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 397; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_9 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_Phrase)), ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 401; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_9);
   __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
   __pyx_r = __pyx_t_9;
@@ -38012,7 +39904,7 @@ static PyObject *__pyx_pw_3_sa_23HieroCachingRuleFactory_7pattern2phrase_plus(Py
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":399
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":403
  *         return Phrase(result)
  * 
  *     def pattern2phrase_plus(self, pattern):             # <<<<<<<<<<<<<<
@@ -38043,19 +39935,19 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_6pattern2phrase_plus(st
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("pattern2phrase_plus", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":402
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":406
  *         # returns a list containing both the pattern, and pattern
  *         # suffixed/prefixed with the NT category.
  *         patterns = []             # <<<<<<<<<<<<<<
  *         result = ()
  *         arity = 0
  */
-  __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 402; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 406; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_v_patterns = __pyx_t_1;
   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":403
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":407
  *         # suffixed/prefixed with the NT category.
  *         patterns = []
  *         result = ()             # <<<<<<<<<<<<<<
@@ -38065,7 +39957,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_6pattern2phrase_plus(st
   __Pyx_INCREF(((PyObject *)__pyx_empty_tuple));
   __pyx_v_result = __pyx_empty_tuple;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":404
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":408
  *         patterns = []
  *         result = ()
  *         arity = 0             # <<<<<<<<<<<<<<
@@ -38075,7 +39967,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_6pattern2phrase_plus(st
   __Pyx_INCREF(__pyx_int_0);
   __pyx_v_arity = __pyx_int_0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":405
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":409
  *         result = ()
  *         arity = 0
  *         for word_id in pattern:             # <<<<<<<<<<<<<<
@@ -38086,7 +39978,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_6pattern2phrase_plus(st
     __pyx_t_1 = __pyx_v_pattern; __Pyx_INCREF(__pyx_t_1); __pyx_t_2 = 0;
     __pyx_t_3 = NULL;
   } else {
-    __pyx_t_2 = -1; __pyx_t_1 = PyObject_GetIter(__pyx_v_pattern); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 405; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = -1; __pyx_t_1 = PyObject_GetIter(__pyx_v_pattern); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 409; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __pyx_t_3 = Py_TYPE(__pyx_t_1)->tp_iternext;
   }
@@ -38096,21 +39988,21 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_6pattern2phrase_plus(st
       #if CYTHON_COMPILING_IN_CPYTHON
       __pyx_t_4 = PyList_GET_ITEM(__pyx_t_1, __pyx_t_2); __Pyx_INCREF(__pyx_t_4); __pyx_t_2++;
       #else
-      __pyx_t_4 = PySequence_ITEM(__pyx_t_1, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 405; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+      __pyx_t_4 = PySequence_ITEM(__pyx_t_1, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 409; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
       #endif
     } else if (!__pyx_t_3 && PyTuple_CheckExact(__pyx_t_1)) {
       if (__pyx_t_2 >= PyTuple_GET_SIZE(__pyx_t_1)) break;
       #if CYTHON_COMPILING_IN_CPYTHON
       __pyx_t_4 = PyTuple_GET_ITEM(__pyx_t_1, __pyx_t_2); __Pyx_INCREF(__pyx_t_4); __pyx_t_2++;
       #else
-      __pyx_t_4 = PySequence_ITEM(__pyx_t_1, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 405; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+      __pyx_t_4 = PySequence_ITEM(__pyx_t_1, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 409; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
       #endif
     } else {
       __pyx_t_4 = __pyx_t_3(__pyx_t_1);
       if (unlikely(!__pyx_t_4)) {
         if (PyErr_Occurred()) {
           if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-          else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 405; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 409; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         }
         break;
       }
@@ -38120,41 +40012,41 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_6pattern2phrase_plus(st
     __pyx_v_word_id = __pyx_t_4;
     __pyx_t_4 = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":406
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":410
  *         arity = 0
  *         for word_id in pattern:
  *             if word_id == -1:             # <<<<<<<<<<<<<<
  *                 arity = arity + 1
  *                 new_id = sym_setindex(self.category, arity)
  */
-    __pyx_t_4 = PyObject_RichCompare(__pyx_v_word_id, __pyx_int_neg_1, Py_EQ); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 406; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyObject_RichCompare(__pyx_v_word_id, __pyx_int_neg_1, Py_EQ); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 410; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 406; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 410; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     if (__pyx_t_5) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":407
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":411
  *         for word_id in pattern:
  *             if word_id == -1:
  *                 arity = arity + 1             # <<<<<<<<<<<<<<
  *                 new_id = sym_setindex(self.category, arity)
  *             else:
  */
-      __pyx_t_4 = PyNumber_Add(__pyx_v_arity, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 407; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyNumber_Add(__pyx_v_arity, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 411; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_DECREF(__pyx_v_arity);
       __pyx_v_arity = __pyx_t_4;
       __pyx_t_4 = 0;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":408
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":412
  *             if word_id == -1:
  *                 arity = arity + 1
  *                 new_id = sym_setindex(self.category, arity)             # <<<<<<<<<<<<<<
  *             else:
  *                 new_id = sym_fromstring(self.fda.id2word[word_id], True)
  */
-      __pyx_t_6 = __Pyx_PyInt_AsInt(__pyx_v_arity); if (unlikely((__pyx_t_6 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 408; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __pyx_t_4 = PyInt_FromLong(__pyx_f_3_sa_sym_setindex(__pyx_v_self->category, __pyx_t_6)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 408; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = __Pyx_PyInt_AsInt(__pyx_v_arity); if (unlikely((__pyx_t_6 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 412; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyInt_FromLong(__pyx_f_3_sa_sym_setindex(__pyx_v_self->category, __pyx_t_6)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 412; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_XDECREF(__pyx_v_new_id);
       __pyx_v_new_id = __pyx_t_4;
@@ -38163,20 +40055,20 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_6pattern2phrase_plus(st
     }
     /*else*/ {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":410
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":414
  *                 new_id = sym_setindex(self.category, arity)
  *             else:
  *                 new_id = sym_fromstring(self.fda.id2word[word_id], True)             # <<<<<<<<<<<<<<
  *             result = result + (new_id,)
  *         patterns.append(Phrase(result))
  */
-      __pyx_t_4 = __Pyx_GetName(__pyx_m, __pyx_n_s__sym_fromstring); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 410; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = __Pyx_GetName(__pyx_m, __pyx_n_s__sym_fromstring); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 414; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_7 = PyObject_GetItem(__pyx_v_self->fda->id2word, __pyx_v_word_id); if (!__pyx_t_7) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 410; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_7 = PyObject_GetItem(__pyx_v_self->fda->id2word, __pyx_v_word_id); if (!__pyx_t_7) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 414; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_7);
-      __pyx_t_8 = __Pyx_PyBool_FromLong(1); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 410; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = __Pyx_PyBool_FromLong(1); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 414; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_8);
-      __pyx_t_9 = PyTuple_New(2); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 410; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_9 = PyTuple_New(2); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 414; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_9);
       PyTuple_SET_ITEM(__pyx_t_9, 0, __pyx_t_7);
       __Pyx_GIVEREF(__pyx_t_7);
@@ -38184,7 +40076,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_6pattern2phrase_plus(st
       __Pyx_GIVEREF(__pyx_t_8);
       __pyx_t_7 = 0;
       __pyx_t_8 = 0;
-      __pyx_t_8 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_9), NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 410; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_9), NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 414; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_8);
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       __Pyx_DECREF(((PyObject *)__pyx_t_9)); __pyx_t_9 = 0;
@@ -38194,19 +40086,19 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_6pattern2phrase_plus(st
     }
     __pyx_L5:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":411
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":415
  *             else:
  *                 new_id = sym_fromstring(self.fda.id2word[word_id], True)
  *             result = result + (new_id,)             # <<<<<<<<<<<<<<
  *         patterns.append(Phrase(result))
  *         patterns.append(Phrase(result + (sym_setindex(self.category, 1),)))
  */
-    __pyx_t_8 = PyTuple_New(1); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 411; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_8 = PyTuple_New(1); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 415; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_8);
     __Pyx_INCREF(__pyx_v_new_id);
     PyTuple_SET_ITEM(__pyx_t_8, 0, __pyx_v_new_id);
     __Pyx_GIVEREF(__pyx_v_new_id);
-    __pyx_t_9 = PyNumber_Add(((PyObject *)__pyx_v_result), ((PyObject *)__pyx_t_8)); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 411; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_9 = PyNumber_Add(((PyObject *)__pyx_v_result), ((PyObject *)__pyx_t_8)); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 415; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(((PyObject *)__pyx_t_9));
     __Pyx_DECREF(((PyObject *)__pyx_t_8)); __pyx_t_8 = 0;
     __Pyx_DECREF(((PyObject *)__pyx_v_result));
@@ -38215,81 +40107,81 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_6pattern2phrase_plus(st
   }
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":412
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":416
  *                 new_id = sym_fromstring(self.fda.id2word[word_id], True)
  *             result = result + (new_id,)
  *         patterns.append(Phrase(result))             # <<<<<<<<<<<<<<
  *         patterns.append(Phrase(result + (sym_setindex(self.category, 1),)))
  *         patterns.append(Phrase((sym_setindex(self.category, 1),) + result))
  */
-  __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 412; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 416; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_INCREF(((PyObject *)__pyx_v_result));
   PyTuple_SET_ITEM(__pyx_t_1, 0, ((PyObject *)__pyx_v_result));
   __Pyx_GIVEREF(((PyObject *)__pyx_v_result));
-  __pyx_t_9 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_Phrase)), ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 412; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_9 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_Phrase)), ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 416; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_9);
   __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
-  __pyx_t_10 = PyList_Append(__pyx_v_patterns, __pyx_t_9); if (unlikely(__pyx_t_10 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 412; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_10 = PyList_Append(__pyx_v_patterns, __pyx_t_9); if (unlikely(__pyx_t_10 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 416; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":413
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":417
  *             result = result + (new_id,)
  *         patterns.append(Phrase(result))
  *         patterns.append(Phrase(result + (sym_setindex(self.category, 1),)))             # <<<<<<<<<<<<<<
  *         patterns.append(Phrase((sym_setindex(self.category, 1),) + result))
  *         return patterns
  */
-  __pyx_t_9 = PyInt_FromLong(__pyx_f_3_sa_sym_setindex(__pyx_v_self->category, 1)); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 413; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_9 = PyInt_FromLong(__pyx_f_3_sa_sym_setindex(__pyx_v_self->category, 1)); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 417; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_9);
-  __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 413; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 417; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_t_9);
   __Pyx_GIVEREF(__pyx_t_9);
   __pyx_t_9 = 0;
-  __pyx_t_9 = PyNumber_Add(((PyObject *)__pyx_v_result), ((PyObject *)__pyx_t_1)); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 413; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_9 = PyNumber_Add(((PyObject *)__pyx_v_result), ((PyObject *)__pyx_t_1)); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 417; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_9));
   __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
-  __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 413; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 417; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   PyTuple_SET_ITEM(__pyx_t_1, 0, ((PyObject *)__pyx_t_9));
   __Pyx_GIVEREF(((PyObject *)__pyx_t_9));
   __pyx_t_9 = 0;
-  __pyx_t_9 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_Phrase)), ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 413; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_9 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_Phrase)), ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 417; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_9);
   __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
-  __pyx_t_10 = PyList_Append(__pyx_v_patterns, __pyx_t_9); if (unlikely(__pyx_t_10 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 413; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_10 = PyList_Append(__pyx_v_patterns, __pyx_t_9); if (unlikely(__pyx_t_10 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 417; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":414
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":418
  *         patterns.append(Phrase(result))
  *         patterns.append(Phrase(result + (sym_setindex(self.category, 1),)))
  *         patterns.append(Phrase((sym_setindex(self.category, 1),) + result))             # <<<<<<<<<<<<<<
  *         return patterns
  * 
  */
-  __pyx_t_9 = PyInt_FromLong(__pyx_f_3_sa_sym_setindex(__pyx_v_self->category, 1)); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 414; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_9 = PyInt_FromLong(__pyx_f_3_sa_sym_setindex(__pyx_v_self->category, 1)); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 418; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_9);
-  __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 414; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 418; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_t_9);
   __Pyx_GIVEREF(__pyx_t_9);
   __pyx_t_9 = 0;
-  __pyx_t_9 = PyNumber_Add(((PyObject *)__pyx_t_1), ((PyObject *)__pyx_v_result)); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 414; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_9 = PyNumber_Add(((PyObject *)__pyx_t_1), ((PyObject *)__pyx_v_result)); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 418; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_9));
   __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
-  __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 414; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 418; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   PyTuple_SET_ITEM(__pyx_t_1, 0, ((PyObject *)__pyx_t_9));
   __Pyx_GIVEREF(((PyObject *)__pyx_t_9));
   __pyx_t_9 = 0;
-  __pyx_t_9 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_Phrase)), ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 414; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_9 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_Phrase)), ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 418; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_9);
   __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
-  __pyx_t_10 = PyList_Append(__pyx_v_patterns, __pyx_t_9); if (unlikely(__pyx_t_10 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 414; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_10 = PyList_Append(__pyx_v_patterns, __pyx_t_9); if (unlikely(__pyx_t_10 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 418; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":415
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":419
  *         patterns.append(Phrase(result + (sym_setindex(self.category, 1),)))
  *         patterns.append(Phrase((sym_setindex(self.category, 1),) + result))
  *         return patterns             # <<<<<<<<<<<<<<
@@ -38333,7 +40225,7 @@ static PyObject *__pyx_pw_3_sa_23HieroCachingRuleFactory_9precompute(PyObject *_
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":417
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":421
  *         return patterns
  * 
  *     def precompute(self):             # <<<<<<<<<<<<<<
@@ -38367,7 +40259,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_8precompute(struct __py
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("precompute", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":420
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":424
  *         cdef Precomputation pre
  * 
  *         if self.precompute_file is not None:             # <<<<<<<<<<<<<<
@@ -38377,61 +40269,61 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_8precompute(struct __py
   __pyx_t_1 = (__pyx_v_self->precompute_file != Py_None);
   if (__pyx_t_1) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":421
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":425
  * 
  *         if self.precompute_file is not None:
  *             start_time = monitor_cpu()             # <<<<<<<<<<<<<<
  *             logger.info("Reading precomputed data from file %s... ", self.precompute_file)
  *             pre = Precomputation(from_binary=self.precompute_file)
  */
-    __pyx_t_2 = PyFloat_FromDouble(__pyx_f_3_sa_monitor_cpu()); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 421; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyFloat_FromDouble(__pyx_f_3_sa_monitor_cpu()); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 425; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __pyx_v_start_time = __pyx_t_2;
     __pyx_t_2 = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":422
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":426
  *         if self.precompute_file is not None:
  *             start_time = monitor_cpu()
  *             logger.info("Reading precomputed data from file %s... ", self.precompute_file)             # <<<<<<<<<<<<<<
  *             pre = Precomputation(from_binary=self.precompute_file)
  *             # check parameters of precomputation -- some are critical and some are not
  */
-    __pyx_t_2 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 422; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 426; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_3 = PyObject_GetAttr(__pyx_t_2, __pyx_n_s__info); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 422; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_GetAttr(__pyx_t_2, __pyx_n_s__info); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 426; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __pyx_t_2 = PyTuple_New(2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 422; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyTuple_New(2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 426; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __Pyx_INCREF(((PyObject *)__pyx_kp_s_108));
-    PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_kp_s_108));
-    __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_108));
+    __Pyx_INCREF(((PyObject *)__pyx_kp_s_110));
+    PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_kp_s_110));
+    __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_110));
     __Pyx_INCREF(__pyx_v_self->precompute_file);
     PyTuple_SET_ITEM(__pyx_t_2, 1, __pyx_v_self->precompute_file);
     __Pyx_GIVEREF(__pyx_v_self->precompute_file);
-    __pyx_t_4 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 422; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 426; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":423
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":427
  *             start_time = monitor_cpu()
  *             logger.info("Reading precomputed data from file %s... ", self.precompute_file)
  *             pre = Precomputation(from_binary=self.precompute_file)             # <<<<<<<<<<<<<<
  *             # check parameters of precomputation -- some are critical and some are not
  *             if pre.max_nonterminals != self.max_nonterminals:
  */
-    __pyx_t_4 = PyDict_New(); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 423; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyDict_New(); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 427; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(((PyObject *)__pyx_t_4));
-    if (PyDict_SetItem(__pyx_t_4, ((PyObject *)__pyx_n_s__from_binary), __pyx_v_self->precompute_file) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 423; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __pyx_t_2 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_Precomputation)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_4)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 423; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (PyDict_SetItem(__pyx_t_4, ((PyObject *)__pyx_n_s__from_binary), __pyx_v_self->precompute_file) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 427; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_Precomputation)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_4)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 427; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
     __pyx_v_pre = ((struct __pyx_obj_3_sa_Precomputation *)__pyx_t_2);
     __pyx_t_2 = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":425
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":429
  *             pre = Precomputation(from_binary=self.precompute_file)
  *             # check parameters of precomputation -- some are critical and some are not
  *             if pre.max_nonterminals != self.max_nonterminals:             # <<<<<<<<<<<<<<
@@ -38441,34 +40333,34 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_8precompute(struct __py
     __pyx_t_1 = (__pyx_v_pre->max_nonterminals != __pyx_v_self->max_nonterminals);
     if (__pyx_t_1) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":426
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":430
  *             # check parameters of precomputation -- some are critical and some are not
  *             if pre.max_nonterminals != self.max_nonterminals:
  *                 logger.warn("Precomputation done with max nonterminals %d, decoder uses %d", pre.max_nonterminals, self.max_nonterminals)             # <<<<<<<<<<<<<<
  *             if pre.max_length != self.max_length:
  *                 logger.warn("Precomputation done with max terminals %d, decoder uses %d", pre.max_length, self.max_length)
  */
-      __pyx_t_2 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 426; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 430; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_4 = PyObject_GetAttr(__pyx_t_2, __pyx_n_s__warn); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 426; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyObject_GetAttr(__pyx_t_2, __pyx_n_s__warn); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 430; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-      __pyx_t_2 = PyInt_FromLong(__pyx_v_pre->max_nonterminals); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 426; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyInt_FromLong(__pyx_v_pre->max_nonterminals); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 430; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_3 = PyInt_FromLong(__pyx_v_self->max_nonterminals); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 426; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = PyInt_FromLong(__pyx_v_self->max_nonterminals); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 430; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
-      __pyx_t_5 = PyTuple_New(3); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 426; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_5 = PyTuple_New(3); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 430; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_5);
-      __Pyx_INCREF(((PyObject *)__pyx_kp_s_109));
-      PyTuple_SET_ITEM(__pyx_t_5, 0, ((PyObject *)__pyx_kp_s_109));
-      __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_109));
+      __Pyx_INCREF(((PyObject *)__pyx_kp_s_111));
+      PyTuple_SET_ITEM(__pyx_t_5, 0, ((PyObject *)__pyx_kp_s_111));
+      __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_111));
       PyTuple_SET_ITEM(__pyx_t_5, 1, __pyx_t_2);
       __Pyx_GIVEREF(__pyx_t_2);
       PyTuple_SET_ITEM(__pyx_t_5, 2, __pyx_t_3);
       __Pyx_GIVEREF(__pyx_t_3);
       __pyx_t_2 = 0;
       __pyx_t_3 = 0;
-      __pyx_t_3 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_5), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 426; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_5), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 430; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       __Pyx_DECREF(((PyObject *)__pyx_t_5)); __pyx_t_5 = 0;
@@ -38477,7 +40369,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_8precompute(struct __py
     }
     __pyx_L4:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":427
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":431
  *             if pre.max_nonterminals != self.max_nonterminals:
  *                 logger.warn("Precomputation done with max nonterminals %d, decoder uses %d", pre.max_nonterminals, self.max_nonterminals)
  *             if pre.max_length != self.max_length:             # <<<<<<<<<<<<<<
@@ -38487,34 +40379,34 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_8precompute(struct __py
     __pyx_t_1 = (__pyx_v_pre->max_length != __pyx_v_self->max_length);
     if (__pyx_t_1) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":428
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":432
  *                 logger.warn("Precomputation done with max nonterminals %d, decoder uses %d", pre.max_nonterminals, self.max_nonterminals)
  *             if pre.max_length != self.max_length:
  *                 logger.warn("Precomputation done with max terminals %d, decoder uses %d", pre.max_length, self.max_length)             # <<<<<<<<<<<<<<
  *             if pre.train_max_initial_size != self.train_max_initial_size:
  *                 raise Exception("Precomputation done with max initial size %d, decoder uses %d" % (pre.train_max_initial_size, self.train_max_initial_size))
  */
-      __pyx_t_3 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 428; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 432; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
-      __pyx_t_5 = PyObject_GetAttr(__pyx_t_3, __pyx_n_s__warn); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 428; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_5 = PyObject_GetAttr(__pyx_t_3, __pyx_n_s__warn); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 432; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_5);
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-      __pyx_t_3 = PyInt_FromLong(__pyx_v_pre->max_length); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 428; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = PyInt_FromLong(__pyx_v_pre->max_length); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 432; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
-      __pyx_t_4 = PyInt_FromLong(__pyx_v_self->max_length); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 428; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyInt_FromLong(__pyx_v_self->max_length); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 432; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_2 = PyTuple_New(3); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 428; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyTuple_New(3); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 432; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      __Pyx_INCREF(((PyObject *)__pyx_kp_s_110));
-      PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_kp_s_110));
-      __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_110));
+      __Pyx_INCREF(((PyObject *)__pyx_kp_s_112));
+      PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_kp_s_112));
+      __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_112));
       PyTuple_SET_ITEM(__pyx_t_2, 1, __pyx_t_3);
       __Pyx_GIVEREF(__pyx_t_3);
       PyTuple_SET_ITEM(__pyx_t_2, 2, __pyx_t_4);
       __Pyx_GIVEREF(__pyx_t_4);
       __pyx_t_3 = 0;
       __pyx_t_4 = 0;
-      __pyx_t_4 = PyObject_Call(__pyx_t_5, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 428; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyObject_Call(__pyx_t_5, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 432; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
       __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
@@ -38523,7 +40415,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_8precompute(struct __py
     }
     __pyx_L5:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":429
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":433
  *             if pre.max_length != self.max_length:
  *                 logger.warn("Precomputation done with max terminals %d, decoder uses %d", pre.max_length, self.max_length)
  *             if pre.train_max_initial_size != self.train_max_initial_size:             # <<<<<<<<<<<<<<
@@ -38533,18 +40425,18 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_8precompute(struct __py
     __pyx_t_1 = (__pyx_v_pre->train_max_initial_size != __pyx_v_self->train_max_initial_size);
     if (__pyx_t_1) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":430
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":434
  *                 logger.warn("Precomputation done with max terminals %d, decoder uses %d", pre.max_length, self.max_length)
  *             if pre.train_max_initial_size != self.train_max_initial_size:
  *                 raise Exception("Precomputation done with max initial size %d, decoder uses %d" % (pre.train_max_initial_size, self.train_max_initial_size))             # <<<<<<<<<<<<<<
  *             if pre.train_min_gap_size != self.train_min_gap_size:
  *                 raise Exception("Precomputation done with min gap size %d, decoder uses %d" % (pre.train_min_gap_size, self.train_min_gap_size))
  */
-      __pyx_t_4 = PyInt_FromLong(__pyx_v_pre->train_max_initial_size); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 430; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyInt_FromLong(__pyx_v_pre->train_max_initial_size); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 434; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_2 = PyInt_FromLong(__pyx_v_self->train_max_initial_size); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 430; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyInt_FromLong(__pyx_v_self->train_max_initial_size); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 434; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_5 = PyTuple_New(2); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 430; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_5 = PyTuple_New(2); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 434; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_5);
       PyTuple_SET_ITEM(__pyx_t_5, 0, __pyx_t_4);
       __Pyx_GIVEREF(__pyx_t_4);
@@ -38552,25 +40444,25 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_8precompute(struct __py
       __Pyx_GIVEREF(__pyx_t_2);
       __pyx_t_4 = 0;
       __pyx_t_2 = 0;
-      __pyx_t_2 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_111), ((PyObject *)__pyx_t_5)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 430; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_113), ((PyObject *)__pyx_t_5)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 434; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(((PyObject *)__pyx_t_2));
       __Pyx_DECREF(((PyObject *)__pyx_t_5)); __pyx_t_5 = 0;
-      __pyx_t_5 = PyTuple_New(1); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 430; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_5 = PyTuple_New(1); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 434; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_5);
       PyTuple_SET_ITEM(__pyx_t_5, 0, ((PyObject *)__pyx_t_2));
       __Pyx_GIVEREF(((PyObject *)__pyx_t_2));
       __pyx_t_2 = 0;
-      __pyx_t_2 = PyObject_Call(__pyx_builtin_Exception, ((PyObject *)__pyx_t_5), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 430; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyObject_Call(__pyx_builtin_Exception, ((PyObject *)__pyx_t_5), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 434; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(((PyObject *)__pyx_t_5)); __pyx_t_5 = 0;
       __Pyx_Raise(__pyx_t_2, 0, 0, 0);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-      {__pyx_filename = __pyx_f[8]; __pyx_lineno = 430; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      {__pyx_filename = __pyx_f[8]; __pyx_lineno = 434; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       goto __pyx_L6;
     }
     __pyx_L6:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":431
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":435
  *             if pre.train_max_initial_size != self.train_max_initial_size:
  *                 raise Exception("Precomputation done with max initial size %d, decoder uses %d" % (pre.train_max_initial_size, self.train_max_initial_size))
  *             if pre.train_min_gap_size != self.train_min_gap_size:             # <<<<<<<<<<<<<<
@@ -38580,18 +40472,18 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_8precompute(struct __py
     __pyx_t_1 = (__pyx_v_pre->train_min_gap_size != __pyx_v_self->train_min_gap_size);
     if (__pyx_t_1) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":432
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":436
  *                 raise Exception("Precomputation done with max initial size %d, decoder uses %d" % (pre.train_max_initial_size, self.train_max_initial_size))
  *             if pre.train_min_gap_size != self.train_min_gap_size:
  *                 raise Exception("Precomputation done with min gap size %d, decoder uses %d" % (pre.train_min_gap_size, self.train_min_gap_size))             # <<<<<<<<<<<<<<
  *             if self.use_index:
  *                 logger.info("Converting %d hash keys on precomputed inverted index... ", len(pre.precomputed_index))
  */
-      __pyx_t_2 = PyInt_FromLong(__pyx_v_pre->train_min_gap_size); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 432; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyInt_FromLong(__pyx_v_pre->train_min_gap_size); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 436; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_5 = PyInt_FromLong(__pyx_v_self->train_min_gap_size); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 432; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_5 = PyInt_FromLong(__pyx_v_self->train_min_gap_size); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 436; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_5);
-      __pyx_t_4 = PyTuple_New(2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 432; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyTuple_New(2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 436; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       PyTuple_SET_ITEM(__pyx_t_4, 0, __pyx_t_2);
       __Pyx_GIVEREF(__pyx_t_2);
@@ -38599,25 +40491,25 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_8precompute(struct __py
       __Pyx_GIVEREF(__pyx_t_5);
       __pyx_t_2 = 0;
       __pyx_t_5 = 0;
-      __pyx_t_5 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_112), ((PyObject *)__pyx_t_4)); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 432; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_5 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_114), ((PyObject *)__pyx_t_4)); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 436; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(((PyObject *)__pyx_t_5));
       __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
-      __pyx_t_4 = PyTuple_New(1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 432; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyTuple_New(1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 436; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       PyTuple_SET_ITEM(__pyx_t_4, 0, ((PyObject *)__pyx_t_5));
       __Pyx_GIVEREF(((PyObject *)__pyx_t_5));
       __pyx_t_5 = 0;
-      __pyx_t_5 = PyObject_Call(__pyx_builtin_Exception, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 432; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_5 = PyObject_Call(__pyx_builtin_Exception, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 436; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_5);
       __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
       __Pyx_Raise(__pyx_t_5, 0, 0, 0);
       __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-      {__pyx_filename = __pyx_f[8]; __pyx_lineno = 432; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      {__pyx_filename = __pyx_f[8]; __pyx_lineno = 436; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       goto __pyx_L7;
     }
     __pyx_L7:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":433
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":437
  *             if pre.train_min_gap_size != self.train_min_gap_size:
  *                 raise Exception("Precomputation done with min gap size %d, decoder uses %d" % (pre.train_min_gap_size, self.train_min_gap_size))
  *             if self.use_index:             # <<<<<<<<<<<<<<
@@ -38626,39 +40518,39 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_8precompute(struct __py
  */
     if (__pyx_v_self->use_index) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":434
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":438
  *                 raise Exception("Precomputation done with min gap size %d, decoder uses %d" % (pre.train_min_gap_size, self.train_min_gap_size))
  *             if self.use_index:
  *                 logger.info("Converting %d hash keys on precomputed inverted index... ", len(pre.precomputed_index))             # <<<<<<<<<<<<<<
  *                 for pattern, arr in pre.precomputed_index.iteritems():
  *                     phrases = self.pattern2phrase_plus(pattern)
  */
-      __pyx_t_5 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 434; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_5 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 438; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_5);
-      __pyx_t_4 = PyObject_GetAttr(__pyx_t_5, __pyx_n_s__info); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 434; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyObject_GetAttr(__pyx_t_5, __pyx_n_s__info); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 438; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
       __pyx_t_5 = __pyx_v_pre->precomputed_index;
       __Pyx_INCREF(__pyx_t_5);
-      __pyx_t_6 = PyObject_Length(__pyx_t_5); if (unlikely(__pyx_t_6 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 434; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = PyObject_Length(__pyx_t_5); if (unlikely(__pyx_t_6 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 438; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-      __pyx_t_5 = PyInt_FromSsize_t(__pyx_t_6); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 434; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_5 = PyInt_FromSsize_t(__pyx_t_6); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 438; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_5);
-      __pyx_t_2 = PyTuple_New(2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 434; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyTuple_New(2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 438; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      __Pyx_INCREF(((PyObject *)__pyx_kp_s_113));
-      PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_kp_s_113));
-      __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_113));
+      __Pyx_INCREF(((PyObject *)__pyx_kp_s_115));
+      PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_kp_s_115));
+      __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_115));
       PyTuple_SET_ITEM(__pyx_t_2, 1, __pyx_t_5);
       __Pyx_GIVEREF(__pyx_t_5);
       __pyx_t_5 = 0;
-      __pyx_t_5 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 434; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_5 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 438; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_5);
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
       __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":435
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":439
  *             if self.use_index:
  *                 logger.info("Converting %d hash keys on precomputed inverted index... ", len(pre.precomputed_index))
  *                 for pattern, arr in pre.precomputed_index.iteritems():             # <<<<<<<<<<<<<<
@@ -38668,9 +40560,9 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_8precompute(struct __py
       __pyx_t_6 = 0;
       if (unlikely(__pyx_v_pre->precomputed_index == Py_None)) {
         PyErr_Format(PyExc_AttributeError, "'NoneType' object has no attribute '%s'", "iteritems");
-        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 435; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 439; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       }
-      __pyx_t_2 = __Pyx_dict_iterator(__pyx_v_pre->precomputed_index, 0, ((PyObject *)__pyx_n_s__iteritems), (&__pyx_t_7), (&__pyx_t_8)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 435; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = __Pyx_dict_iterator(__pyx_v_pre->precomputed_index, 0, ((PyObject *)__pyx_n_s__iteritems), (&__pyx_t_7), (&__pyx_t_8)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 439; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_XDECREF(__pyx_t_5);
       __pyx_t_5 = __pyx_t_2;
@@ -38678,7 +40570,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_8precompute(struct __py
       while (1) {
         __pyx_t_9 = __Pyx_dict_iter_next(__pyx_t_5, __pyx_t_7, &__pyx_t_6, &__pyx_t_2, &__pyx_t_4, NULL, __pyx_t_8);
         if (unlikely(__pyx_t_9 == 0)) break;
-        if (unlikely(__pyx_t_9 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 435; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        if (unlikely(__pyx_t_9 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 439; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_2);
         __Pyx_GOTREF(__pyx_t_4);
         __Pyx_XDECREF(__pyx_v_pattern);
@@ -38688,21 +40580,21 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_8precompute(struct __py
         __pyx_v_arr = __pyx_t_4;
         __pyx_t_4 = 0;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":436
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":440
  *                 logger.info("Converting %d hash keys on precomputed inverted index... ", len(pre.precomputed_index))
  *                 for pattern, arr in pre.precomputed_index.iteritems():
  *                     phrases = self.pattern2phrase_plus(pattern)             # <<<<<<<<<<<<<<
  *                     for phrase in phrases:
  *                         self.precomputed_index[phrase] = arr
  */
-        __pyx_t_4 = PyObject_GetAttr(((PyObject *)__pyx_v_self), __pyx_n_s__pattern2phrase_plus); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 436; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_4 = PyObject_GetAttr(((PyObject *)__pyx_v_self), __pyx_n_s__pattern2phrase_plus); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 440; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_4);
-        __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 436; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 440; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_2);
         __Pyx_INCREF(__pyx_v_pattern);
         PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_v_pattern);
         __Pyx_GIVEREF(__pyx_v_pattern);
-        __pyx_t_3 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 436; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_3 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 440; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_3);
         __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
         __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
@@ -38710,7 +40602,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_8precompute(struct __py
         __pyx_v_phrases = __pyx_t_3;
         __pyx_t_3 = 0;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":437
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":441
  *                 for pattern, arr in pre.precomputed_index.iteritems():
  *                     phrases = self.pattern2phrase_plus(pattern)
  *                     for phrase in phrases:             # <<<<<<<<<<<<<<
@@ -38721,7 +40613,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_8precompute(struct __py
           __pyx_t_3 = __pyx_v_phrases; __Pyx_INCREF(__pyx_t_3); __pyx_t_10 = 0;
           __pyx_t_11 = NULL;
         } else {
-          __pyx_t_10 = -1; __pyx_t_3 = PyObject_GetIter(__pyx_v_phrases); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 437; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_10 = -1; __pyx_t_3 = PyObject_GetIter(__pyx_v_phrases); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 441; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_3);
           __pyx_t_11 = Py_TYPE(__pyx_t_3)->tp_iternext;
         }
@@ -38731,21 +40623,21 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_8precompute(struct __py
             #if CYTHON_COMPILING_IN_CPYTHON
             __pyx_t_2 = PyList_GET_ITEM(__pyx_t_3, __pyx_t_10); __Pyx_INCREF(__pyx_t_2); __pyx_t_10++;
             #else
-            __pyx_t_2 = PySequence_ITEM(__pyx_t_3, __pyx_t_10); __pyx_t_10++; if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 437; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+            __pyx_t_2 = PySequence_ITEM(__pyx_t_3, __pyx_t_10); __pyx_t_10++; if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 441; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
             #endif
           } else if (!__pyx_t_11 && PyTuple_CheckExact(__pyx_t_3)) {
             if (__pyx_t_10 >= PyTuple_GET_SIZE(__pyx_t_3)) break;
             #if CYTHON_COMPILING_IN_CPYTHON
             __pyx_t_2 = PyTuple_GET_ITEM(__pyx_t_3, __pyx_t_10); __Pyx_INCREF(__pyx_t_2); __pyx_t_10++;
             #else
-            __pyx_t_2 = PySequence_ITEM(__pyx_t_3, __pyx_t_10); __pyx_t_10++; if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 437; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+            __pyx_t_2 = PySequence_ITEM(__pyx_t_3, __pyx_t_10); __pyx_t_10++; if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 441; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
             #endif
           } else {
             __pyx_t_2 = __pyx_t_11(__pyx_t_3);
             if (unlikely(!__pyx_t_2)) {
               if (PyErr_Occurred()) {
                 if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-                else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 437; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 441; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               }
               break;
             }
@@ -38755,14 +40647,14 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_8precompute(struct __py
           __pyx_v_phrase = __pyx_t_2;
           __pyx_t_2 = 0;
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":438
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":442
  *                     phrases = self.pattern2phrase_plus(pattern)
  *                     for phrase in phrases:
  *                         self.precomputed_index[phrase] = arr             # <<<<<<<<<<<<<<
  *             if self.use_collocations:
  *                 logger.info("Converting %d hash keys on precomputed collocations... ", len(pre.precomputed_collocations))
  */
-          if (PyObject_SetItem(__pyx_v_self->precomputed_index, __pyx_v_phrase, __pyx_v_arr) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 438; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          if (PyObject_SetItem(__pyx_v_self->precomputed_index, __pyx_v_phrase, __pyx_v_arr) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 442; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         }
         __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       }
@@ -38771,7 +40663,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_8precompute(struct __py
     }
     __pyx_L8:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":439
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":443
  *                     for phrase in phrases:
  *                         self.precomputed_index[phrase] = arr
  *             if self.use_collocations:             # <<<<<<<<<<<<<<
@@ -38780,39 +40672,39 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_8precompute(struct __py
  */
     if (__pyx_v_self->use_collocations) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":440
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":444
  *                         self.precomputed_index[phrase] = arr
  *             if self.use_collocations:
  *                 logger.info("Converting %d hash keys on precomputed collocations... ", len(pre.precomputed_collocations))             # <<<<<<<<<<<<<<
  *                 for pattern, arr in pre.precomputed_collocations.iteritems():
  *                     phrase = self.pattern2phrase(pattern)
  */
-      __pyx_t_5 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 440; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_5 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 444; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_5);
-      __pyx_t_3 = PyObject_GetAttr(__pyx_t_5, __pyx_n_s__info); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 440; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = PyObject_GetAttr(__pyx_t_5, __pyx_n_s__info); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 444; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
       __pyx_t_5 = __pyx_v_pre->precomputed_collocations;
       __Pyx_INCREF(__pyx_t_5);
-      __pyx_t_7 = PyObject_Length(__pyx_t_5); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 440; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_7 = PyObject_Length(__pyx_t_5); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 444; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-      __pyx_t_5 = PyInt_FromSsize_t(__pyx_t_7); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 440; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_5 = PyInt_FromSsize_t(__pyx_t_7); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 444; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_5);
-      __pyx_t_2 = PyTuple_New(2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 440; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyTuple_New(2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 444; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      __Pyx_INCREF(((PyObject *)__pyx_kp_s_114));
-      PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_kp_s_114));
-      __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_114));
+      __Pyx_INCREF(((PyObject *)__pyx_kp_s_116));
+      PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_kp_s_116));
+      __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_116));
       PyTuple_SET_ITEM(__pyx_t_2, 1, __pyx_t_5);
       __Pyx_GIVEREF(__pyx_t_5);
       __pyx_t_5 = 0;
-      __pyx_t_5 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 440; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_5 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 444; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_5);
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
       __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":441
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":445
  *             if self.use_collocations:
  *                 logger.info("Converting %d hash keys on precomputed collocations... ", len(pre.precomputed_collocations))
  *                 for pattern, arr in pre.precomputed_collocations.iteritems():             # <<<<<<<<<<<<<<
@@ -38822,9 +40714,9 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_8precompute(struct __py
       __pyx_t_7 = 0;
       if (unlikely(__pyx_v_pre->precomputed_collocations == Py_None)) {
         PyErr_Format(PyExc_AttributeError, "'NoneType' object has no attribute '%s'", "iteritems");
-        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 441; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 445; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       }
-      __pyx_t_2 = __Pyx_dict_iterator(__pyx_v_pre->precomputed_collocations, 0, ((PyObject *)__pyx_n_s__iteritems), (&__pyx_t_6), (&__pyx_t_8)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 441; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = __Pyx_dict_iterator(__pyx_v_pre->precomputed_collocations, 0, ((PyObject *)__pyx_n_s__iteritems), (&__pyx_t_6), (&__pyx_t_8)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 445; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_XDECREF(__pyx_t_5);
       __pyx_t_5 = __pyx_t_2;
@@ -38832,7 +40724,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_8precompute(struct __py
       while (1) {
         __pyx_t_9 = __Pyx_dict_iter_next(__pyx_t_5, __pyx_t_6, &__pyx_t_7, &__pyx_t_2, &__pyx_t_3, NULL, __pyx_t_8);
         if (unlikely(__pyx_t_9 == 0)) break;
-        if (unlikely(__pyx_t_9 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 441; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        if (unlikely(__pyx_t_9 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 445; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_2);
         __Pyx_GOTREF(__pyx_t_3);
         __Pyx_XDECREF(__pyx_v_pattern);
@@ -38842,21 +40734,21 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_8precompute(struct __py
         __pyx_v_arr = __pyx_t_3;
         __pyx_t_3 = 0;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":442
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":446
  *                 logger.info("Converting %d hash keys on precomputed collocations... ", len(pre.precomputed_collocations))
  *                 for pattern, arr in pre.precomputed_collocations.iteritems():
  *                     phrase = self.pattern2phrase(pattern)             # <<<<<<<<<<<<<<
  *                     self.precomputed_collocations[phrase] = arr
  *             stop_time = monitor_cpu()
  */
-        __pyx_t_3 = PyObject_GetAttr(((PyObject *)__pyx_v_self), __pyx_n_s__pattern2phrase); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 442; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_3 = PyObject_GetAttr(((PyObject *)__pyx_v_self), __pyx_n_s__pattern2phrase); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 446; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_3);
-        __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 442; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 446; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_2);
         __Pyx_INCREF(__pyx_v_pattern);
         PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_v_pattern);
         __Pyx_GIVEREF(__pyx_v_pattern);
-        __pyx_t_4 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 442; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_4 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 446; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_4);
         __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
         __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
@@ -38864,55 +40756,55 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_8precompute(struct __py
         __pyx_v_phrase = __pyx_t_4;
         __pyx_t_4 = 0;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":443
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":447
  *                 for pattern, arr in pre.precomputed_collocations.iteritems():
  *                     phrase = self.pattern2phrase(pattern)
  *                     self.precomputed_collocations[phrase] = arr             # <<<<<<<<<<<<<<
  *             stop_time = monitor_cpu()
  *             logger.info("Processing precomputations took %f seconds", stop_time - start_time)
  */
-        if (PyObject_SetItem(__pyx_v_self->precomputed_collocations, __pyx_v_phrase, __pyx_v_arr) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 443; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        if (PyObject_SetItem(__pyx_v_self->precomputed_collocations, __pyx_v_phrase, __pyx_v_arr) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 447; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       }
       __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
       goto __pyx_L13;
     }
     __pyx_L13:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":444
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":448
  *                     phrase = self.pattern2phrase(pattern)
  *                     self.precomputed_collocations[phrase] = arr
  *             stop_time = monitor_cpu()             # <<<<<<<<<<<<<<
  *             logger.info("Processing precomputations took %f seconds", stop_time - start_time)
  * 
  */
-    __pyx_t_5 = PyFloat_FromDouble(__pyx_f_3_sa_monitor_cpu()); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 444; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyFloat_FromDouble(__pyx_f_3_sa_monitor_cpu()); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 448; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
     __pyx_v_stop_time = __pyx_t_5;
     __pyx_t_5 = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":445
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":449
  *                     self.precomputed_collocations[phrase] = arr
  *             stop_time = monitor_cpu()
  *             logger.info("Processing precomputations took %f seconds", stop_time - start_time)             # <<<<<<<<<<<<<<
  * 
  * 
  */
-    __pyx_t_5 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 445; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 449; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
-    __pyx_t_4 = PyObject_GetAttr(__pyx_t_5, __pyx_n_s__info); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 445; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyObject_GetAttr(__pyx_t_5, __pyx_n_s__info); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 449; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-    __pyx_t_5 = PyNumber_Subtract(__pyx_v_stop_time, __pyx_v_start_time); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 445; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyNumber_Subtract(__pyx_v_stop_time, __pyx_v_start_time); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 449; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
-    __pyx_t_2 = PyTuple_New(2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 445; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyTuple_New(2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 449; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __Pyx_INCREF(((PyObject *)__pyx_kp_s_115));
-    PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_kp_s_115));
-    __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_115));
+    __Pyx_INCREF(((PyObject *)__pyx_kp_s_117));
+    PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_kp_s_117));
+    __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_117));
     PyTuple_SET_ITEM(__pyx_t_2, 1, __pyx_t_5);
     __Pyx_GIVEREF(__pyx_t_5);
     __pyx_t_5 = 0;
-    __pyx_t_5 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 445; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 449; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
@@ -38954,7 +40846,7 @@ static PyObject *__pyx_pw_3_sa_23HieroCachingRuleFactory_11get_precomputed_collo
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":448
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":452
  * 
  * 
  *     def get_precomputed_collocation(self, phrase):             # <<<<<<<<<<<<<<
@@ -38976,29 +40868,29 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_10get_precomputed_collo
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("get_precomputed_collocation", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":449
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":453
  * 
  *     def get_precomputed_collocation(self, phrase):
  *         if phrase in self.precomputed_collocations:             # <<<<<<<<<<<<<<
  *             arr = self.precomputed_collocations[phrase]
  *             return PhraseLocation(arr=arr, arr_low=0, arr_high=len(arr), num_subpatterns=phrase.arity()+1)
  */
-  __pyx_t_1 = ((PySequence_Contains(__pyx_v_self->precomputed_collocations, __pyx_v_phrase))); if (unlikely(__pyx_t_1 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 449; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = ((PySequence_Contains(__pyx_v_self->precomputed_collocations, __pyx_v_phrase))); if (unlikely(__pyx_t_1 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 453; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   if (__pyx_t_1) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":450
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":454
  *     def get_precomputed_collocation(self, phrase):
  *         if phrase in self.precomputed_collocations:
  *             arr = self.precomputed_collocations[phrase]             # <<<<<<<<<<<<<<
  *             return PhraseLocation(arr=arr, arr_low=0, arr_high=len(arr), num_subpatterns=phrase.arity()+1)
  *         return None
  */
-    __pyx_t_2 = PyObject_GetItem(__pyx_v_self->precomputed_collocations, __pyx_v_phrase); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 450; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyObject_GetItem(__pyx_v_self->precomputed_collocations, __pyx_v_phrase); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 454; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __pyx_v_arr = __pyx_t_2;
     __pyx_t_2 = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":451
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":455
  *         if phrase in self.precomputed_collocations:
  *             arr = self.precomputed_collocations[phrase]
  *             return PhraseLocation(arr=arr, arr_low=0, arr_high=len(arr), num_subpatterns=phrase.arity()+1)             # <<<<<<<<<<<<<<
@@ -39006,26 +40898,26 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_10get_precomputed_collo
  * 
  */
     __Pyx_XDECREF(__pyx_r);
-    __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 451; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 455; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(((PyObject *)__pyx_t_2));
-    if (PyDict_SetItem(__pyx_t_2, ((PyObject *)__pyx_n_s__arr), __pyx_v_arr) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 451; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    if (PyDict_SetItem(__pyx_t_2, ((PyObject *)__pyx_n_s__arr_low), __pyx_int_0) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 451; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __pyx_t_3 = PyObject_Length(__pyx_v_arr); if (unlikely(__pyx_t_3 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 451; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __pyx_t_4 = PyInt_FromSsize_t(__pyx_t_3); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 451; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (PyDict_SetItem(__pyx_t_2, ((PyObject *)__pyx_n_s__arr), __pyx_v_arr) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 455; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (PyDict_SetItem(__pyx_t_2, ((PyObject *)__pyx_n_s__arr_low), __pyx_int_0) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 455; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_Length(__pyx_v_arr); if (unlikely(__pyx_t_3 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 455; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyInt_FromSsize_t(__pyx_t_3); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 455; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
-    if (PyDict_SetItem(__pyx_t_2, ((PyObject *)__pyx_n_s__arr_high), __pyx_t_4) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 451; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (PyDict_SetItem(__pyx_t_2, ((PyObject *)__pyx_n_s__arr_high), __pyx_t_4) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 455; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    __pyx_t_4 = PyObject_GetAttr(__pyx_v_phrase, __pyx_n_s__arity); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 451; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyObject_GetAttr(__pyx_v_phrase, __pyx_n_s__arity); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 455; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_5 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 451; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 455; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    __pyx_t_4 = PyNumber_Add(__pyx_t_5, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 451; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyNumber_Add(__pyx_t_5, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 455; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-    if (PyDict_SetItem(__pyx_t_2, ((PyObject *)__pyx_n_s__num_subpatterns), __pyx_t_4) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 451; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (PyDict_SetItem(__pyx_t_2, ((PyObject *)__pyx_n_s__num_subpatterns), __pyx_t_4) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 455; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    __pyx_t_4 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_PhraseLocation)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_2)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 451; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_PhraseLocation)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_2)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 455; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
     __pyx_r = __pyx_t_4;
@@ -39035,7 +40927,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_10get_precomputed_collo
   }
   __pyx_L3:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":452
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":456
  *             arr = self.precomputed_collocations[phrase]
  *             return PhraseLocation(arr=arr, arr_low=0, arr_high=len(arr), num_subpatterns=phrase.arity()+1)
  *         return None             # <<<<<<<<<<<<<<
@@ -39062,7 +40954,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_10get_precomputed_collo
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":455
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":459
  * 
  * 
  *     cdef int* baeza_yates_helper(self, int low1, int high1, int* arr1, int step1,             # <<<<<<<<<<<<<<
@@ -39108,7 +41000,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("baeza_yates_helper", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":468
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":472
  *         cdef Matching loc1, loc2
  * 
  *         result = <int*> malloc(0*sizeof(int*))             # <<<<<<<<<<<<<<
@@ -39117,7 +41009,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
   __pyx_v_result = ((int *)malloc((0 * (sizeof(int *)))));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":470
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":474
  *         result = <int*> malloc(0*sizeof(int*))
  * 
  *         d_first = 0             # <<<<<<<<<<<<<<
@@ -39126,7 +41018,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
   __pyx_v_d_first = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":471
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":475
  * 
  *         d_first = 0
  *         if high1 - low1 > high2 - low2:             # <<<<<<<<<<<<<<
@@ -39136,7 +41028,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
   __pyx_t_1 = ((__pyx_v_high1 - __pyx_v_low1) > (__pyx_v_high2 - __pyx_v_low2));
   if (__pyx_t_1) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":472
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":476
  *         d_first = 0
  *         if high1 - low1 > high2 - low2:
  *             d_first = 1             # <<<<<<<<<<<<<<
@@ -39148,7 +41040,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
   }
   __pyx_L3:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":476
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":480
  *         # First, check to see if we are at any of the recursive base cases
  *         # Case 1: one of the sets is empty
  *         if low1 >= high1 or low2 >= high2:             # <<<<<<<<<<<<<<
@@ -39164,7 +41056,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
   }
   if (__pyx_t_3) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":477
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":481
  *         # Case 1: one of the sets is empty
  *         if low1 >= high1 or low2 >= high2:
  *             return result             # <<<<<<<<<<<<<<
@@ -39177,7 +41069,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
   }
   __pyx_L4:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":480
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":484
  * 
  *         # Case 2: sets are non-overlapping
  *         assign_matching(&loc1, arr1, high1-step1, step1, self.fda.sent_id.arr)             # <<<<<<<<<<<<<<
@@ -39186,7 +41078,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
   __pyx_f_3_sa_assign_matching((&__pyx_v_loc1), __pyx_v_arr1, (__pyx_v_high1 - __pyx_v_step1), __pyx_v_step1, __pyx_v_self->fda->sent_id->arr);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":481
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":485
  *         # Case 2: sets are non-overlapping
  *         assign_matching(&loc1, arr1, high1-step1, step1, self.fda.sent_id.arr)
  *         assign_matching(&loc2, arr2, low2, step2, self.fda.sent_id.arr)             # <<<<<<<<<<<<<<
@@ -39195,7 +41087,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
   __pyx_f_3_sa_assign_matching((&__pyx_v_loc2), __pyx_v_arr2, __pyx_v_low2, __pyx_v_step2, __pyx_v_self->fda->sent_id->arr);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":482
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":486
  *         assign_matching(&loc1, arr1, high1-step1, step1, self.fda.sent_id.arr)
  *         assign_matching(&loc2, arr2, low2, step2, self.fda.sent_id.arr)
  *         if self.compare_matchings(&loc1, &loc2, offset_by_one, len_last) == -1:             # <<<<<<<<<<<<<<
@@ -39205,7 +41097,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
   __pyx_t_3 = (((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->compare_matchings(__pyx_v_self, (&__pyx_v_loc1), (&__pyx_v_loc2), __pyx_v_offset_by_one, __pyx_v_len_last) == -1);
   if (__pyx_t_3) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":483
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":487
  *         assign_matching(&loc2, arr2, low2, step2, self.fda.sent_id.arr)
  *         if self.compare_matchings(&loc1, &loc2, offset_by_one, len_last) == -1:
  *             return result             # <<<<<<<<<<<<<<
@@ -39218,7 +41110,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
   }
   __pyx_L5:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":485
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":489
  *             return result
  * 
  *         assign_matching(&loc1, arr1, low1, step1, self.fda.sent_id.arr)             # <<<<<<<<<<<<<<
@@ -39227,7 +41119,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
   __pyx_f_3_sa_assign_matching((&__pyx_v_loc1), __pyx_v_arr1, __pyx_v_low1, __pyx_v_step1, __pyx_v_self->fda->sent_id->arr);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":486
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":490
  * 
  *         assign_matching(&loc1, arr1, low1, step1, self.fda.sent_id.arr)
  *         assign_matching(&loc2, arr2, high2-step2, step2, self.fda.sent_id.arr)             # <<<<<<<<<<<<<<
@@ -39236,7 +41128,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
   __pyx_f_3_sa_assign_matching((&__pyx_v_loc2), __pyx_v_arr2, (__pyx_v_high2 - __pyx_v_step2), __pyx_v_step2, __pyx_v_self->fda->sent_id->arr);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":487
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":491
  *         assign_matching(&loc1, arr1, low1, step1, self.fda.sent_id.arr)
  *         assign_matching(&loc2, arr2, high2-step2, step2, self.fda.sent_id.arr)
  *         if self.compare_matchings(&loc1, &loc2, offset_by_one, len_last) == 1:             # <<<<<<<<<<<<<<
@@ -39246,7 +41138,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
   __pyx_t_3 = (((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->compare_matchings(__pyx_v_self, (&__pyx_v_loc1), (&__pyx_v_loc2), __pyx_v_offset_by_one, __pyx_v_len_last) == 1);
   if (__pyx_t_3) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":488
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":492
  *         assign_matching(&loc2, arr2, high2-step2, step2, self.fda.sent_id.arr)
  *         if self.compare_matchings(&loc1, &loc2, offset_by_one, len_last) == 1:
  *             return result             # <<<<<<<<<<<<<<
@@ -39259,7 +41151,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
   }
   __pyx_L6:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":492
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":496
  *         # Case 3: query set and data set do not meet size mismatch constraints;
  *         # We use mergesort instead in this case
  *         qsetsize = (high1-low1) / step1             # <<<<<<<<<<<<<<
@@ -39269,15 +41161,15 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
   __pyx_t_4 = (__pyx_v_high1 - __pyx_v_low1);
   if (unlikely(__pyx_v_step1 == 0)) {
     PyErr_Format(PyExc_ZeroDivisionError, "integer division or modulo by zero");
-    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 492; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 496; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   }
   else if (sizeof(int) == sizeof(long) && unlikely(__pyx_v_step1 == -1) && unlikely(UNARY_NEG_WOULD_OVERFLOW(__pyx_t_4))) {
     PyErr_Format(PyExc_OverflowError, "value too large to perform division");
-    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 492; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 496; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   }
   __pyx_v_qsetsize = __Pyx_div_int(__pyx_t_4, __pyx_v_step1);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":493
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":497
  *         # We use mergesort instead in this case
  *         qsetsize = (high1-low1) / step1
  *         dsetsize = (high2-low2) / step2             # <<<<<<<<<<<<<<
@@ -39287,15 +41179,15 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
   __pyx_t_4 = (__pyx_v_high2 - __pyx_v_low2);
   if (unlikely(__pyx_v_step2 == 0)) {
     PyErr_Format(PyExc_ZeroDivisionError, "integer division or modulo by zero");
-    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 493; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 497; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   }
   else if (sizeof(int) == sizeof(long) && unlikely(__pyx_v_step2 == -1) && unlikely(UNARY_NEG_WOULD_OVERFLOW(__pyx_t_4))) {
     PyErr_Format(PyExc_OverflowError, "value too large to perform division");
-    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 493; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 497; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   }
   __pyx_v_dsetsize = __Pyx_div_int(__pyx_t_4, __pyx_v_step2);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":494
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":498
  *         qsetsize = (high1-low1) / step1
  *         dsetsize = (high2-low2) / step2
  *         if d_first:             # <<<<<<<<<<<<<<
@@ -39304,7 +41196,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
   if (__pyx_v_d_first) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":495
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":499
  *         dsetsize = (high2-low2) / step2
  *         if d_first:
  *             tmp = qsetsize             # <<<<<<<<<<<<<<
@@ -39313,7 +41205,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
     __pyx_v_tmp = __pyx_v_qsetsize;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":496
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":500
  *         if d_first:
  *             tmp = qsetsize
  *             qsetsize = dsetsize             # <<<<<<<<<<<<<<
@@ -39322,7 +41214,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
     __pyx_v_qsetsize = __pyx_v_dsetsize;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":497
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":501
  *             tmp = qsetsize
  *             qsetsize = dsetsize
  *             dsetsize = tmp             # <<<<<<<<<<<<<<
@@ -39334,7 +41226,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
   }
   __pyx_L7:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":499
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":503
  *             dsetsize = tmp
  * 
  *         if self.by_slack_factor * qsetsize * log(dsetsize) / log(2) > dsetsize:             # <<<<<<<<<<<<<<
@@ -39345,12 +41237,12 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
   __pyx_t_6 = log(2.0);
   if (unlikely(__pyx_t_6 == 0)) {
     PyErr_Format(PyExc_ZeroDivisionError, "float division");
-    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 499; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 503; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   }
   __pyx_t_3 = ((__pyx_t_5 / __pyx_t_6) > __pyx_v_dsetsize);
   if (__pyx_t_3) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":500
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":504
  * 
  *         if self.by_slack_factor * qsetsize * log(dsetsize) / log(2) > dsetsize:
  *             free(result)             # <<<<<<<<<<<<<<
@@ -39359,7 +41251,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
     free(__pyx_v_result);
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":501
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":505
  *         if self.by_slack_factor * qsetsize * log(dsetsize) / log(2) > dsetsize:
  *             free(result)
  *             return self.merge_helper(low1, high1, arr1, step1, low2, high2, arr2, step2, offset_by_one, len_last, num_subpatterns, result_len)             # <<<<<<<<<<<<<<
@@ -39372,7 +41264,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
   }
   __pyx_L8:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":505
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":509
  *         # binary search.    There are two flavors, depending on
  *         # whether the queryset or dataset is first
  *         if d_first:             # <<<<<<<<<<<<<<
@@ -39381,7 +41273,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
   if (__pyx_v_d_first) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":506
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":510
  *         # whether the queryset or dataset is first
  *         if d_first:
  *             med2 = median(low2, high2, step2)             # <<<<<<<<<<<<<<
@@ -39390,7 +41282,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
     __pyx_v_med2 = __pyx_f_3_sa_median(__pyx_v_low2, __pyx_v_high2, __pyx_v_step2);
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":507
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":511
  *         if d_first:
  *             med2 = median(low2, high2, step2)
  *             assign_matching(&loc2, arr2, med2, step2, self.fda.sent_id.arr)             # <<<<<<<<<<<<<<
@@ -39399,7 +41291,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
     __pyx_f_3_sa_assign_matching((&__pyx_v_loc2), __pyx_v_arr2, __pyx_v_med2, __pyx_v_step2, __pyx_v_self->fda->sent_id->arr);
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":509
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":513
  *             assign_matching(&loc2, arr2, med2, step2, self.fda.sent_id.arr)
  * 
  *             search_low = low1             # <<<<<<<<<<<<<<
@@ -39408,7 +41300,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
     __pyx_v_search_low = __pyx_v_low1;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":510
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":514
  * 
  *             search_low = low1
  *             search_high = high1             # <<<<<<<<<<<<<<
@@ -39417,7 +41309,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
     __pyx_v_search_high = __pyx_v_high1;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":511
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":515
  *             search_low = low1
  *             search_high = high1
  *             while search_low < search_high:             # <<<<<<<<<<<<<<
@@ -39428,7 +41320,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
       __pyx_t_3 = (__pyx_v_search_low < __pyx_v_search_high);
       if (!__pyx_t_3) break;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":512
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":516
  *             search_high = high1
  *             while search_low < search_high:
  *                 med1 = median(search_low, search_high, step1)             # <<<<<<<<<<<<<<
@@ -39437,7 +41329,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
       __pyx_v_med1 = __pyx_f_3_sa_median(__pyx_v_search_low, __pyx_v_search_high, __pyx_v_step1);
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":513
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":517
  *             while search_low < search_high:
  *                 med1 = median(search_low, search_high, step1)
  *                 find_comparable_matchings(low1, high1, arr1, step1, med1, &med1_minus, &med1_plus)             # <<<<<<<<<<<<<<
@@ -39446,7 +41338,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
       __pyx_f_3_sa_find_comparable_matchings(__pyx_v_low1, __pyx_v_high1, __pyx_v_arr1, __pyx_v_step1, __pyx_v_med1, (&__pyx_v_med1_minus), (&__pyx_v_med1_plus));
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":514
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":518
  *                 med1 = median(search_low, search_high, step1)
  *                 find_comparable_matchings(low1, high1, arr1, step1, med1, &med1_minus, &med1_plus)
  *                 comparison = self.compare_matchings_set(med1_minus, med1_plus, arr1, step1, &loc2, offset_by_one, len_last)             # <<<<<<<<<<<<<<
@@ -39455,7 +41347,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
       __pyx_v_comparison = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->compare_matchings_set(__pyx_v_self, __pyx_v_med1_minus, __pyx_v_med1_plus, __pyx_v_arr1, __pyx_v_step1, (&__pyx_v_loc2), __pyx_v_offset_by_one, __pyx_v_len_last);
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":517
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":521
  *                 if comparison == -1:
  *                     search_low = med1_plus
  *                 elif comparison == 1:             # <<<<<<<<<<<<<<
@@ -39464,7 +41356,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
       switch (__pyx_v_comparison) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":515
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":519
  *                 find_comparable_matchings(low1, high1, arr1, step1, med1, &med1_minus, &med1_plus)
  *                 comparison = self.compare_matchings_set(med1_minus, med1_plus, arr1, step1, &loc2, offset_by_one, len_last)
  *                 if comparison == -1:             # <<<<<<<<<<<<<<
@@ -39473,7 +41365,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
         case -1:
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":516
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":520
  *                 comparison = self.compare_matchings_set(med1_minus, med1_plus, arr1, step1, &loc2, offset_by_one, len_last)
  *                 if comparison == -1:
  *                     search_low = med1_plus             # <<<<<<<<<<<<<<
@@ -39483,7 +41375,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
         __pyx_v_search_low = __pyx_v_med1_plus;
         break;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":517
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":521
  *                 if comparison == -1:
  *                     search_low = med1_plus
  *                 elif comparison == 1:             # <<<<<<<<<<<<<<
@@ -39492,7 +41384,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
         case 1:
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":518
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":522
  *                     search_low = med1_plus
  *                 elif comparison == 1:
  *                     search_high = med1_minus             # <<<<<<<<<<<<<<
@@ -39503,7 +41395,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
         break;
         default:
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":520
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":524
  *                     search_high = med1_minus
  *                 else:
  *                     break             # <<<<<<<<<<<<<<
@@ -39519,7 +41411,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
   }
   /*else*/ {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":522
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":526
  *                     break
  *         else:
  *             med1 = median(low1, high1, step1)             # <<<<<<<<<<<<<<
@@ -39528,7 +41420,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
     __pyx_v_med1 = __pyx_f_3_sa_median(__pyx_v_low1, __pyx_v_high1, __pyx_v_step1);
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":523
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":527
  *         else:
  *             med1 = median(low1, high1, step1)
  *             find_comparable_matchings(low1, high1, arr1, step1, med1, &med1_minus, &med1_plus)             # <<<<<<<<<<<<<<
@@ -39537,7 +41429,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
     __pyx_f_3_sa_find_comparable_matchings(__pyx_v_low1, __pyx_v_high1, __pyx_v_arr1, __pyx_v_step1, __pyx_v_med1, (&__pyx_v_med1_minus), (&__pyx_v_med1_plus));
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":525
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":529
  *             find_comparable_matchings(low1, high1, arr1, step1, med1, &med1_minus, &med1_plus)
  * 
  *             search_low = low2             # <<<<<<<<<<<<<<
@@ -39546,7 +41438,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
     __pyx_v_search_low = __pyx_v_low2;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":526
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":530
  * 
  *             search_low = low2
  *             search_high = high2             # <<<<<<<<<<<<<<
@@ -39555,7 +41447,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
     __pyx_v_search_high = __pyx_v_high2;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":527
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":531
  *             search_low = low2
  *             search_high = high2
  *             while search_low < search_high:             # <<<<<<<<<<<<<<
@@ -39566,7 +41458,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
       __pyx_t_3 = (__pyx_v_search_low < __pyx_v_search_high);
       if (!__pyx_t_3) break;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":528
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":532
  *             search_high = high2
  *             while search_low < search_high:
  *                 med2 = median(search_low, search_high, step2)             # <<<<<<<<<<<<<<
@@ -39575,7 +41467,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
       __pyx_v_med2 = __pyx_f_3_sa_median(__pyx_v_search_low, __pyx_v_search_high, __pyx_v_step2);
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":529
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":533
  *             while search_low < search_high:
  *                 med2 = median(search_low, search_high, step2)
  *                 assign_matching(&loc2, arr2, med2, step2, self.fda.sent_id.arr)             # <<<<<<<<<<<<<<
@@ -39584,7 +41476,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
       __pyx_f_3_sa_assign_matching((&__pyx_v_loc2), __pyx_v_arr2, __pyx_v_med2, __pyx_v_step2, __pyx_v_self->fda->sent_id->arr);
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":530
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":534
  *                 med2 = median(search_low, search_high, step2)
  *                 assign_matching(&loc2, arr2, med2, step2, self.fda.sent_id.arr)
  *                 comparison = self.compare_matchings_set(med1_minus, med1_plus, arr1, step1, &loc2, offset_by_one, len_last)             # <<<<<<<<<<<<<<
@@ -39593,7 +41485,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
       __pyx_v_comparison = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->compare_matchings_set(__pyx_v_self, __pyx_v_med1_minus, __pyx_v_med1_plus, __pyx_v_arr1, __pyx_v_step1, (&__pyx_v_loc2), __pyx_v_offset_by_one, __pyx_v_len_last);
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":533
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":537
  *                 if comparison == -1:
  *                     search_high = med2
  *                 elif comparison == 1:             # <<<<<<<<<<<<<<
@@ -39602,7 +41494,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
       switch (__pyx_v_comparison) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":531
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":535
  *                 assign_matching(&loc2, arr2, med2, step2, self.fda.sent_id.arr)
  *                 comparison = self.compare_matchings_set(med1_minus, med1_plus, arr1, step1, &loc2, offset_by_one, len_last)
  *                 if comparison == -1:             # <<<<<<<<<<<<<<
@@ -39611,7 +41503,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
         case -1:
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":532
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":536
  *                 comparison = self.compare_matchings_set(med1_minus, med1_plus, arr1, step1, &loc2, offset_by_one, len_last)
  *                 if comparison == -1:
  *                     search_high = med2             # <<<<<<<<<<<<<<
@@ -39621,7 +41513,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
         __pyx_v_search_high = __pyx_v_med2;
         break;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":533
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":537
  *                 if comparison == -1:
  *                     search_high = med2
  *                 elif comparison == 1:             # <<<<<<<<<<<<<<
@@ -39630,7 +41522,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
         case 1:
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":534
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":538
  *                     search_high = med2
  *                 elif comparison == 1:
  *                     search_low = med2 + step2             # <<<<<<<<<<<<<<
@@ -39641,7 +41533,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
         break;
         default:
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":536
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":540
  *                     search_low = med2 + step2
  *                 else:
  *                     break             # <<<<<<<<<<<<<<
@@ -39656,7 +41548,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
   }
   __pyx_L9:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":538
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":542
  *                     break
  * 
  *         med_result_len = 0             # <<<<<<<<<<<<<<
@@ -39665,7 +41557,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
   __pyx_v_med_result_len = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":539
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":543
  * 
  *         med_result_len = 0
  *         med_result = <int*> malloc(0*sizeof(int*))             # <<<<<<<<<<<<<<
@@ -39674,7 +41566,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
   __pyx_v_med_result = ((int *)malloc((0 * (sizeof(int *)))));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":540
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":544
  *         med_result_len = 0
  *         med_result = <int*> malloc(0*sizeof(int*))
  *         if search_high > search_low:             # <<<<<<<<<<<<<<
@@ -39684,7 +41576,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
   __pyx_t_3 = (__pyx_v_search_high > __pyx_v_search_low);
   if (__pyx_t_3) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":546
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":550
  *             # want to store the bindings for all of those elements.    We can
  *             # subsequently throw all of them away.
  *             med2_minus = med2             # <<<<<<<<<<<<<<
@@ -39693,7 +41585,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
     __pyx_v_med2_minus = __pyx_v_med2;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":547
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":551
  *             # subsequently throw all of them away.
  *             med2_minus = med2
  *             med2_plus = med2 + step2             # <<<<<<<<<<<<<<
@@ -39702,7 +41594,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
     __pyx_v_med2_plus = (__pyx_v_med2 + __pyx_v_step2);
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":548
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":552
  *             med2_minus = med2
  *             med2_plus = med2 + step2
  *             i1 = med1_minus             # <<<<<<<<<<<<<<
@@ -39711,7 +41603,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
     __pyx_v_i1 = __pyx_v_med1_minus;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":549
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":553
  *             med2_plus = med2 + step2
  *             i1 = med1_minus
  *             while i1 < med1_plus:             # <<<<<<<<<<<<<<
@@ -39722,7 +41614,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
       __pyx_t_3 = (__pyx_v_i1 < __pyx_v_med1_plus);
       if (!__pyx_t_3) break;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":550
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":554
  *             i1 = med1_minus
  *             while i1 < med1_plus:
  *                 assign_matching(&loc1, arr1, i1, step1, self.fda.sent_id.arr)             # <<<<<<<<<<<<<<
@@ -39731,7 +41623,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
       __pyx_f_3_sa_assign_matching((&__pyx_v_loc1), __pyx_v_arr1, __pyx_v_i1, __pyx_v_step1, __pyx_v_self->fda->sent_id->arr);
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":551
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":555
  *             while i1 < med1_plus:
  *                 assign_matching(&loc1, arr1, i1, step1, self.fda.sent_id.arr)
  *                 while med2_minus-step2 >= low2:             # <<<<<<<<<<<<<<
@@ -39742,7 +41634,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
         __pyx_t_3 = ((__pyx_v_med2_minus - __pyx_v_step2) >= __pyx_v_low2);
         if (!__pyx_t_3) break;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":552
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":556
  *                 assign_matching(&loc1, arr1, i1, step1, self.fda.sent_id.arr)
  *                 while med2_minus-step2 >= low2:
  *                     assign_matching(&loc2, arr2, med2_minus-step2, step2, self.fda.sent_id.arr)             # <<<<<<<<<<<<<<
@@ -39751,7 +41643,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
         __pyx_f_3_sa_assign_matching((&__pyx_v_loc2), __pyx_v_arr2, (__pyx_v_med2_minus - __pyx_v_step2), __pyx_v_step2, __pyx_v_self->fda->sent_id->arr);
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":553
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":557
  *                 while med2_minus-step2 >= low2:
  *                     assign_matching(&loc2, arr2, med2_minus-step2, step2, self.fda.sent_id.arr)
  *                     if self.compare_matchings(&loc1, &loc2, offset_by_one, len_last) < 1:             # <<<<<<<<<<<<<<
@@ -39761,7 +41653,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
         __pyx_t_3 = (((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->compare_matchings(__pyx_v_self, (&__pyx_v_loc1), (&__pyx_v_loc2), __pyx_v_offset_by_one, __pyx_v_len_last) < 1);
         if (__pyx_t_3) {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":554
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":558
  *                     assign_matching(&loc2, arr2, med2_minus-step2, step2, self.fda.sent_id.arr)
  *                     if self.compare_matchings(&loc1, &loc2, offset_by_one, len_last) < 1:
  *                         med2_minus = med2_minus - step2             # <<<<<<<<<<<<<<
@@ -39773,7 +41665,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
         }
         /*else*/ {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":556
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":560
  *                         med2_minus = med2_minus - step2
  *                     else:
  *                         break             # <<<<<<<<<<<<<<
@@ -39786,7 +41678,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
       }
       __pyx_L18_break:;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":557
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":561
  *                     else:
  *                         break
  *                 i2 = med2_minus             # <<<<<<<<<<<<<<
@@ -39795,7 +41687,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
       __pyx_v_i2 = __pyx_v_med2_minus;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":558
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":562
  *                         break
  *                 i2 = med2_minus
  *                 while i2 < high2:             # <<<<<<<<<<<<<<
@@ -39806,7 +41698,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
         __pyx_t_3 = (__pyx_v_i2 < __pyx_v_high2);
         if (!__pyx_t_3) break;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":559
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":563
  *                 i2 = med2_minus
  *                 while i2 < high2:
  *                     assign_matching(&loc2, arr2, i2, step2, self.fda.sent_id.arr)             # <<<<<<<<<<<<<<
@@ -39815,7 +41707,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
         __pyx_f_3_sa_assign_matching((&__pyx_v_loc2), __pyx_v_arr2, __pyx_v_i2, __pyx_v_step2, __pyx_v_self->fda->sent_id->arr);
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":560
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":564
  *                 while i2 < high2:
  *                     assign_matching(&loc2, arr2, i2, step2, self.fda.sent_id.arr)
  *                     comparison = self.compare_matchings(&loc1, &loc2, offset_by_one, len_last)             # <<<<<<<<<<<<<<
@@ -39824,7 +41716,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
         __pyx_v_comparison = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->compare_matchings(__pyx_v_self, (&__pyx_v_loc1), (&__pyx_v_loc2), __pyx_v_offset_by_one, __pyx_v_len_last);
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":561
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":565
  *                     assign_matching(&loc2, arr2, i2, step2, self.fda.sent_id.arr)
  *                     comparison = self.compare_matchings(&loc1, &loc2, offset_by_one, len_last)
  *                     if comparison == 0:             # <<<<<<<<<<<<<<
@@ -39834,7 +41726,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
         __pyx_t_3 = (__pyx_v_comparison == 0);
         if (__pyx_t_3) {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":563
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":567
  *                     if comparison == 0:
  *                         pass
  *                         med_result = append_combined_matching(med_result, &loc1, &loc2, offset_by_one, num_subpatterns, &med_result_len)             # <<<<<<<<<<<<<<
@@ -39846,7 +41738,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
         }
         __pyx_L22:;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":564
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":568
  *                         pass
  *                         med_result = append_combined_matching(med_result, &loc1, &loc2, offset_by_one, num_subpatterns, &med_result_len)
  *                     if comparison == -1:             # <<<<<<<<<<<<<<
@@ -39856,7 +41748,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
         __pyx_t_3 = (__pyx_v_comparison == -1);
         if (__pyx_t_3) {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":565
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":569
  *                         med_result = append_combined_matching(med_result, &loc1, &loc2, offset_by_one, num_subpatterns, &med_result_len)
  *                     if comparison == -1:
  *                         break             # <<<<<<<<<<<<<<
@@ -39868,7 +41760,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
         }
         __pyx_L23:;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":566
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":570
  *                     if comparison == -1:
  *                         break
  *                     i2 = i2 + step2             # <<<<<<<<<<<<<<
@@ -39879,7 +41771,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
       }
       __pyx_L21_break:;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":567
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":571
  *                         break
  *                     i2 = i2 + step2
  *                 if i2 > med2_plus:             # <<<<<<<<<<<<<<
@@ -39889,7 +41781,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
       __pyx_t_3 = (__pyx_v_i2 > __pyx_v_med2_plus);
       if (__pyx_t_3) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":568
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":572
  *                     i2 = i2 + step2
  *                 if i2 > med2_plus:
  *                     med2_plus = i2             # <<<<<<<<<<<<<<
@@ -39901,7 +41793,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
       }
       __pyx_L24:;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":569
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":573
  *                 if i2 > med2_plus:
  *                     med2_plus = i2
  *                 i1 = i1 + step1             # <<<<<<<<<<<<<<
@@ -39911,7 +41803,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
       __pyx_v_i1 = (__pyx_v_i1 + __pyx_v_step1);
     }
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":571
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":575
  *                 i1 = i1 + step1
  * 
  *             tmp = med1_minus             # <<<<<<<<<<<<<<
@@ -39920,7 +41812,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
     __pyx_v_tmp = __pyx_v_med1_minus;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":572
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":576
  * 
  *             tmp = med1_minus
  *             med1_minus = med1_plus             # <<<<<<<<<<<<<<
@@ -39929,7 +41821,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
     __pyx_v_med1_minus = __pyx_v_med1_plus;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":573
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":577
  *             tmp = med1_minus
  *             med1_minus = med1_plus
  *             med1_plus = tmp             # <<<<<<<<<<<<<<
@@ -39941,7 +41833,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
   }
   /*else*/ {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":576
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":580
  *         else:
  *             # No match; need to figure out the point of division in D and Q
  *             med2_minus = med2             # <<<<<<<<<<<<<<
@@ -39950,7 +41842,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
     __pyx_v_med2_minus = __pyx_v_med2;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":577
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":581
  *             # No match; need to figure out the point of division in D and Q
  *             med2_minus = med2
  *             med2_plus = med2             # <<<<<<<<<<<<<<
@@ -39959,7 +41851,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
     __pyx_v_med2_plus = __pyx_v_med2;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":578
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":582
  *             med2_minus = med2
  *             med2_plus = med2
  *             if d_first:             # <<<<<<<<<<<<<<
@@ -39968,7 +41860,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
     if (__pyx_v_d_first) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":579
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":583
  *             med2_plus = med2
  *             if d_first:
  *                 med2_minus = med2_minus + step2             # <<<<<<<<<<<<<<
@@ -39977,7 +41869,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
       __pyx_v_med2_minus = (__pyx_v_med2_minus + __pyx_v_step2);
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":580
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":584
  *             if d_first:
  *                 med2_minus = med2_minus + step2
  *                 if comparison == -1:             # <<<<<<<<<<<<<<
@@ -39987,7 +41879,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
       __pyx_t_3 = (__pyx_v_comparison == -1);
       if (__pyx_t_3) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":581
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":585
  *                 med2_minus = med2_minus + step2
  *                 if comparison == -1:
  *                     med1_minus = med1_plus             # <<<<<<<<<<<<<<
@@ -39999,7 +41891,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
       }
       __pyx_L26:;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":582
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":586
  *                 if comparison == -1:
  *                     med1_minus = med1_plus
  *                 if comparison == 1:             # <<<<<<<<<<<<<<
@@ -40009,7 +41901,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
       __pyx_t_3 = (__pyx_v_comparison == 1);
       if (__pyx_t_3) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":583
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":587
  *                     med1_minus = med1_plus
  *                 if comparison == 1:
  *                     med1_plus = med1_minus             # <<<<<<<<<<<<<<
@@ -40024,7 +41916,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
     }
     /*else*/ {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":585
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":589
  *                     med1_plus = med1_minus
  *             else:
  *                 tmp = med1_minus             # <<<<<<<<<<<<<<
@@ -40033,7 +41925,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
       __pyx_v_tmp = __pyx_v_med1_minus;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":586
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":590
  *             else:
  *                 tmp = med1_minus
  *                 med1_minus = med1_plus             # <<<<<<<<<<<<<<
@@ -40042,7 +41934,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
       __pyx_v_med1_minus = __pyx_v_med1_plus;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":587
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":591
  *                 tmp = med1_minus
  *                 med1_minus = med1_plus
  *                 med1_plus = tmp             # <<<<<<<<<<<<<<
@@ -40051,7 +41943,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
       __pyx_v_med1_plus = __pyx_v_tmp;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":588
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":592
  *                 med1_minus = med1_plus
  *                 med1_plus = tmp
  *                 if comparison == 1:             # <<<<<<<<<<<<<<
@@ -40061,7 +41953,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
       __pyx_t_3 = (__pyx_v_comparison == 1);
       if (__pyx_t_3) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":589
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":593
  *                 med1_plus = tmp
  *                 if comparison == 1:
  *                     med2_minus = med2_minus + step2             # <<<<<<<<<<<<<<
@@ -40070,7 +41962,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
         __pyx_v_med2_minus = (__pyx_v_med2_minus + __pyx_v_step2);
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":590
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":594
  *                 if comparison == 1:
  *                     med2_minus = med2_minus + step2
  *                     med2_plus = med2_plus + step2             # <<<<<<<<<<<<<<
@@ -40086,7 +41978,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
   }
   __pyx_L14:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":592
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":596
  *                     med2_plus = med2_plus + step2
  * 
  *         low_result_len = 0             # <<<<<<<<<<<<<<
@@ -40095,7 +41987,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
   __pyx_v_low_result_len = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":593
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":597
  * 
  *         low_result_len = 0
  *         low_result = self.baeza_yates_helper(low1, med1_plus, arr1, step1, low2, med2_plus, arr2, step2, offset_by_one, len_last, num_subpatterns, &low_result_len)             # <<<<<<<<<<<<<<
@@ -40104,7 +41996,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
   __pyx_v_low_result = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->baeza_yates_helper(__pyx_v_self, __pyx_v_low1, __pyx_v_med1_plus, __pyx_v_arr1, __pyx_v_step1, __pyx_v_low2, __pyx_v_med2_plus, __pyx_v_arr2, __pyx_v_step2, __pyx_v_offset_by_one, __pyx_v_len_last, __pyx_v_num_subpatterns, (&__pyx_v_low_result_len));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":594
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":598
  *         low_result_len = 0
  *         low_result = self.baeza_yates_helper(low1, med1_plus, arr1, step1, low2, med2_plus, arr2, step2, offset_by_one, len_last, num_subpatterns, &low_result_len)
  *         high_result_len = 0             # <<<<<<<<<<<<<<
@@ -40113,7 +42005,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
   __pyx_v_high_result_len = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":595
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":599
  *         low_result = self.baeza_yates_helper(low1, med1_plus, arr1, step1, low2, med2_plus, arr2, step2, offset_by_one, len_last, num_subpatterns, &low_result_len)
  *         high_result_len = 0
  *         high_result = self.baeza_yates_helper(med1_minus, high1, arr1, step1, med2_minus, high2, arr2, step2, offset_by_one, len_last, num_subpatterns, &high_result_len)             # <<<<<<<<<<<<<<
@@ -40122,7 +42014,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
   __pyx_v_high_result = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->baeza_yates_helper(__pyx_v_self, __pyx_v_med1_minus, __pyx_v_high1, __pyx_v_arr1, __pyx_v_step1, __pyx_v_med2_minus, __pyx_v_high2, __pyx_v_arr2, __pyx_v_step2, __pyx_v_offset_by_one, __pyx_v_len_last, __pyx_v_num_subpatterns, (&__pyx_v_high_result_len));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":597
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":601
  *         high_result = self.baeza_yates_helper(med1_minus, high1, arr1, step1, med2_minus, high2, arr2, step2, offset_by_one, len_last, num_subpatterns, &high_result_len)
  * 
  *         result = extend_arr(result, result_len, low_result, low_result_len)             # <<<<<<<<<<<<<<
@@ -40131,7 +42023,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
   __pyx_v_result = __pyx_f_3_sa_extend_arr(__pyx_v_result, __pyx_v_result_len, __pyx_v_low_result, __pyx_v_low_result_len);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":598
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":602
  * 
  *         result = extend_arr(result, result_len, low_result, low_result_len)
  *         result = extend_arr(result, result_len, med_result, med_result_len)             # <<<<<<<<<<<<<<
@@ -40140,7 +42032,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
   __pyx_v_result = __pyx_f_3_sa_extend_arr(__pyx_v_result, __pyx_v_result_len, __pyx_v_med_result, __pyx_v_med_result_len);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":599
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":603
  *         result = extend_arr(result, result_len, low_result, low_result_len)
  *         result = extend_arr(result, result_len, med_result, med_result_len)
  *         result = extend_arr(result, result_len, high_result, high_result_len)             # <<<<<<<<<<<<<<
@@ -40149,7 +42041,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
   __pyx_v_result = __pyx_f_3_sa_extend_arr(__pyx_v_result, __pyx_v_result_len, __pyx_v_high_result, __pyx_v_high_result_len);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":600
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":604
  *         result = extend_arr(result, result_len, med_result, med_result_len)
  *         result = extend_arr(result, result_len, high_result, high_result_len)
  *         free(low_result)             # <<<<<<<<<<<<<<
@@ -40158,7 +42050,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
   free(__pyx_v_low_result);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":601
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":605
  *         result = extend_arr(result, result_len, high_result, high_result_len)
  *         free(low_result)
  *         free(med_result)             # <<<<<<<<<<<<<<
@@ -40167,7 +42059,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
   free(__pyx_v_med_result);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":602
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":606
  *         free(low_result)
  *         free(med_result)
  *         free(high_result)             # <<<<<<<<<<<<<<
@@ -40176,7 +42068,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
  */
   free(__pyx_v_high_result);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":604
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":608
  *         free(high_result)
  * 
  *         return result             # <<<<<<<<<<<<<<
@@ -40196,7 +42088,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(struct __p
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":608
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":612
  * 
  * 
  *     cdef long compare_matchings_set(self, int i1_minus, int i1_plus, int* arr1, int step1,             # <<<<<<<<<<<<<<
@@ -40215,7 +42107,7 @@ static long __pyx_f_3_sa_23HieroCachingRuleFactory_compare_matchings_set(struct
   int __pyx_t_1;
   __Pyx_RefNannySetupContext("compare_matchings_set", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":619
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":623
  *         cdef Matching* loc1
  * 
  *         loc1 = &l1_stack             # <<<<<<<<<<<<<<
@@ -40224,7 +42116,7 @@ static long __pyx_f_3_sa_23HieroCachingRuleFactory_compare_matchings_set(struct
  */
   __pyx_v_loc1 = (&__pyx_v_l1_stack);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":621
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":625
  *         loc1 = &l1_stack
  * 
  *         i1 = i1_minus             # <<<<<<<<<<<<<<
@@ -40233,7 +42125,7 @@ static long __pyx_f_3_sa_23HieroCachingRuleFactory_compare_matchings_set(struct
  */
   __pyx_v_i1 = __pyx_v_i1_minus;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":622
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":626
  * 
  *         i1 = i1_minus
  *         while i1 < i1_plus:             # <<<<<<<<<<<<<<
@@ -40244,7 +42136,7 @@ static long __pyx_f_3_sa_23HieroCachingRuleFactory_compare_matchings_set(struct
     __pyx_t_1 = (__pyx_v_i1 < __pyx_v_i1_plus);
     if (!__pyx_t_1) break;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":623
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":627
  *         i1 = i1_minus
  *         while i1 < i1_plus:
  *             assign_matching(loc1, arr1, i1, step1, self.fda.sent_id.arr)             # <<<<<<<<<<<<<<
@@ -40253,7 +42145,7 @@ static long __pyx_f_3_sa_23HieroCachingRuleFactory_compare_matchings_set(struct
  */
     __pyx_f_3_sa_assign_matching(__pyx_v_loc1, __pyx_v_arr1, __pyx_v_i1, __pyx_v_step1, __pyx_v_self->fda->sent_id->arr);
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":624
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":628
  *         while i1 < i1_plus:
  *             assign_matching(loc1, arr1, i1, step1, self.fda.sent_id.arr)
  *             comparison = self.compare_matchings(loc1, loc2, offset_by_one, len_last)             # <<<<<<<<<<<<<<
@@ -40262,7 +42154,7 @@ static long __pyx_f_3_sa_23HieroCachingRuleFactory_compare_matchings_set(struct
  */
     __pyx_v_comparison = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->compare_matchings(__pyx_v_self, __pyx_v_loc1, __pyx_v_loc2, __pyx_v_offset_by_one, __pyx_v_len_last);
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":625
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":629
  *             assign_matching(loc1, arr1, i1, step1, self.fda.sent_id.arr)
  *             comparison = self.compare_matchings(loc1, loc2, offset_by_one, len_last)
  *             if comparison == 0:             # <<<<<<<<<<<<<<
@@ -40272,7 +42164,7 @@ static long __pyx_f_3_sa_23HieroCachingRuleFactory_compare_matchings_set(struct
     __pyx_t_1 = (__pyx_v_comparison == 0);
     if (__pyx_t_1) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":626
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":630
  *             comparison = self.compare_matchings(loc1, loc2, offset_by_one, len_last)
  *             if comparison == 0:
  *                 prev_comparison = 0             # <<<<<<<<<<<<<<
@@ -40281,7 +42173,7 @@ static long __pyx_f_3_sa_23HieroCachingRuleFactory_compare_matchings_set(struct
  */
       __pyx_v_prev_comparison = 0;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":627
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":631
  *             if comparison == 0:
  *                 prev_comparison = 0
  *                 break             # <<<<<<<<<<<<<<
@@ -40292,7 +42184,7 @@ static long __pyx_f_3_sa_23HieroCachingRuleFactory_compare_matchings_set(struct
       goto __pyx_L5;
     }
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":628
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":632
  *                 prev_comparison = 0
  *                 break
  *             elif i1 == i1_minus:             # <<<<<<<<<<<<<<
@@ -40302,7 +42194,7 @@ static long __pyx_f_3_sa_23HieroCachingRuleFactory_compare_matchings_set(struct
     __pyx_t_1 = (__pyx_v_i1 == __pyx_v_i1_minus);
     if (__pyx_t_1) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":629
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":633
  *                 break
  *             elif i1 == i1_minus:
  *                 prev_comparison = comparison             # <<<<<<<<<<<<<<
@@ -40314,7 +42206,7 @@ static long __pyx_f_3_sa_23HieroCachingRuleFactory_compare_matchings_set(struct
     }
     /*else*/ {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":631
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":635
  *                 prev_comparison = comparison
  *             else:
  *                 if comparison != prev_comparison:             # <<<<<<<<<<<<<<
@@ -40324,7 +42216,7 @@ static long __pyx_f_3_sa_23HieroCachingRuleFactory_compare_matchings_set(struct
       __pyx_t_1 = (__pyx_v_comparison != __pyx_v_prev_comparison);
       if (__pyx_t_1) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":632
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":636
  *             else:
  *                 if comparison != prev_comparison:
  *                     prev_comparison = 0             # <<<<<<<<<<<<<<
@@ -40333,7 +42225,7 @@ static long __pyx_f_3_sa_23HieroCachingRuleFactory_compare_matchings_set(struct
  */
         __pyx_v_prev_comparison = 0;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":633
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":637
  *                 if comparison != prev_comparison:
  *                     prev_comparison = 0
  *                     break             # <<<<<<<<<<<<<<
@@ -40347,7 +42239,7 @@ static long __pyx_f_3_sa_23HieroCachingRuleFactory_compare_matchings_set(struct
     }
     __pyx_L5:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":634
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":638
  *                     prev_comparison = 0
  *                     break
  *             i1 = i1 + step1             # <<<<<<<<<<<<<<
@@ -40358,7 +42250,7 @@ static long __pyx_f_3_sa_23HieroCachingRuleFactory_compare_matchings_set(struct
   }
   __pyx_L4_break:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":635
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":639
  *                     break
  *             i1 = i1 + step1
  *         return prev_comparison             # <<<<<<<<<<<<<<
@@ -40374,7 +42266,7 @@ static long __pyx_f_3_sa_23HieroCachingRuleFactory_compare_matchings_set(struct
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":638
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":642
  * 
  * 
  *     cdef long compare_matchings(self, Matching* loc1, Matching* loc2, int offset_by_one, int len_last):             # <<<<<<<<<<<<<<
@@ -40392,7 +42284,7 @@ static long __pyx_f_3_sa_23HieroCachingRuleFactory_compare_matchings(struct __py
   int __pyx_t_4;
   __Pyx_RefNannySetupContext("compare_matchings", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":641
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":645
  *         cdef int i
  * 
  *         if loc1.sent_id > loc2.sent_id:             # <<<<<<<<<<<<<<
@@ -40402,7 +42294,7 @@ static long __pyx_f_3_sa_23HieroCachingRuleFactory_compare_matchings(struct __py
   __pyx_t_1 = (__pyx_v_loc1->sent_id > __pyx_v_loc2->sent_id);
   if (__pyx_t_1) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":642
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":646
  * 
  *         if loc1.sent_id > loc2.sent_id:
  *             return 1             # <<<<<<<<<<<<<<
@@ -40415,7 +42307,7 @@ static long __pyx_f_3_sa_23HieroCachingRuleFactory_compare_matchings(struct __py
   }
   __pyx_L3:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":643
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":647
  *         if loc1.sent_id > loc2.sent_id:
  *             return 1
  *         if loc2.sent_id > loc1.sent_id:             # <<<<<<<<<<<<<<
@@ -40425,7 +42317,7 @@ static long __pyx_f_3_sa_23HieroCachingRuleFactory_compare_matchings(struct __py
   __pyx_t_1 = (__pyx_v_loc2->sent_id > __pyx_v_loc1->sent_id);
   if (__pyx_t_1) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":644
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":648
  *             return 1
  *         if loc2.sent_id > loc1.sent_id:
  *             return -1             # <<<<<<<<<<<<<<
@@ -40438,7 +42330,7 @@ static long __pyx_f_3_sa_23HieroCachingRuleFactory_compare_matchings(struct __py
   }
   __pyx_L4:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":646
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":650
  *             return -1
  * 
  *         if loc1.size == 1 and loc2.size == 1:             # <<<<<<<<<<<<<<
@@ -40454,7 +42346,7 @@ static long __pyx_f_3_sa_23HieroCachingRuleFactory_compare_matchings(struct __py
   }
   if (__pyx_t_3) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":647
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":651
  * 
  *         if loc1.size == 1 and loc2.size == 1:
  *             if loc2.arr[loc2.start] - loc1.arr[loc1.start] <= self.train_min_gap_size:             # <<<<<<<<<<<<<<
@@ -40464,7 +42356,7 @@ static long __pyx_f_3_sa_23HieroCachingRuleFactory_compare_matchings(struct __py
     __pyx_t_3 = (((__pyx_v_loc2->arr[__pyx_v_loc2->start]) - (__pyx_v_loc1->arr[__pyx_v_loc1->start])) <= __pyx_v_self->train_min_gap_size);
     if (__pyx_t_3) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":648
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":652
  *         if loc1.size == 1 and loc2.size == 1:
  *             if loc2.arr[loc2.start] - loc1.arr[loc1.start] <= self.train_min_gap_size:
  *                 return 1             # <<<<<<<<<<<<<<
@@ -40479,7 +42371,7 @@ static long __pyx_f_3_sa_23HieroCachingRuleFactory_compare_matchings(struct __py
     goto __pyx_L5;
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":650
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":654
  *                 return 1
  * 
  *         elif offset_by_one:             # <<<<<<<<<<<<<<
@@ -40488,7 +42380,7 @@ static long __pyx_f_3_sa_23HieroCachingRuleFactory_compare_matchings(struct __py
  */
   if (__pyx_v_offset_by_one) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":651
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":655
  * 
  *         elif offset_by_one:
  *             for i from 1 <= i < loc1.size:             # <<<<<<<<<<<<<<
@@ -40498,7 +42390,7 @@ static long __pyx_f_3_sa_23HieroCachingRuleFactory_compare_matchings(struct __py
     __pyx_t_4 = __pyx_v_loc1->size;
     for (__pyx_v_i = 1; __pyx_v_i < __pyx_t_4; __pyx_v_i++) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":652
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":656
  *         elif offset_by_one:
  *             for i from 1 <= i < loc1.size:
  *                 if loc1.arr[loc1.start+i] > loc2.arr[loc2.start+i-1]:             # <<<<<<<<<<<<<<
@@ -40508,7 +42400,7 @@ static long __pyx_f_3_sa_23HieroCachingRuleFactory_compare_matchings(struct __py
       __pyx_t_3 = ((__pyx_v_loc1->arr[(__pyx_v_loc1->start + __pyx_v_i)]) > (__pyx_v_loc2->arr[((__pyx_v_loc2->start + __pyx_v_i) - 1)]));
       if (__pyx_t_3) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":653
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":657
  *             for i from 1 <= i < loc1.size:
  *                 if loc1.arr[loc1.start+i] > loc2.arr[loc2.start+i-1]:
  *                     return 1             # <<<<<<<<<<<<<<
@@ -40521,7 +42413,7 @@ static long __pyx_f_3_sa_23HieroCachingRuleFactory_compare_matchings(struct __py
       }
       __pyx_L9:;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":654
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":658
  *                 if loc1.arr[loc1.start+i] > loc2.arr[loc2.start+i-1]:
  *                     return 1
  *                 if loc1.arr[loc1.start+i] < loc2.arr[loc2.start+i-1]:             # <<<<<<<<<<<<<<
@@ -40531,7 +42423,7 @@ static long __pyx_f_3_sa_23HieroCachingRuleFactory_compare_matchings(struct __py
       __pyx_t_3 = ((__pyx_v_loc1->arr[(__pyx_v_loc1->start + __pyx_v_i)]) < (__pyx_v_loc2->arr[((__pyx_v_loc2->start + __pyx_v_i) - 1)]));
       if (__pyx_t_3) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":655
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":659
  *                     return 1
  *                 if loc1.arr[loc1.start+i] < loc2.arr[loc2.start+i-1]:
  *                     return -1             # <<<<<<<<<<<<<<
@@ -40548,7 +42440,7 @@ static long __pyx_f_3_sa_23HieroCachingRuleFactory_compare_matchings(struct __py
   }
   /*else*/ {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":658
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":662
  * 
  *         else:
  *             if loc1.arr[loc1.start]+1 > loc2.arr[loc2.start]:             # <<<<<<<<<<<<<<
@@ -40558,7 +42450,7 @@ static long __pyx_f_3_sa_23HieroCachingRuleFactory_compare_matchings(struct __py
     __pyx_t_3 = (((__pyx_v_loc1->arr[__pyx_v_loc1->start]) + 1) > (__pyx_v_loc2->arr[__pyx_v_loc2->start]));
     if (__pyx_t_3) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":659
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":663
  *         else:
  *             if loc1.arr[loc1.start]+1 > loc2.arr[loc2.start]:
  *                 return 1             # <<<<<<<<<<<<<<
@@ -40571,7 +42463,7 @@ static long __pyx_f_3_sa_23HieroCachingRuleFactory_compare_matchings(struct __py
     }
     __pyx_L11:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":660
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":664
  *             if loc1.arr[loc1.start]+1 > loc2.arr[loc2.start]:
  *                 return 1
  *             if loc1.arr[loc1.start]+1 < loc2.arr[loc2.start]:             # <<<<<<<<<<<<<<
@@ -40581,7 +42473,7 @@ static long __pyx_f_3_sa_23HieroCachingRuleFactory_compare_matchings(struct __py
     __pyx_t_3 = (((__pyx_v_loc1->arr[__pyx_v_loc1->start]) + 1) < (__pyx_v_loc2->arr[__pyx_v_loc2->start]));
     if (__pyx_t_3) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":661
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":665
  *                 return 1
  *             if loc1.arr[loc1.start]+1 < loc2.arr[loc2.start]:
  *                 return -1             # <<<<<<<<<<<<<<
@@ -40594,7 +42486,7 @@ static long __pyx_f_3_sa_23HieroCachingRuleFactory_compare_matchings(struct __py
     }
     __pyx_L12:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":663
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":667
  *                 return -1
  * 
  *             for i from 1 <= i < loc1.size:             # <<<<<<<<<<<<<<
@@ -40604,7 +42496,7 @@ static long __pyx_f_3_sa_23HieroCachingRuleFactory_compare_matchings(struct __py
     __pyx_t_4 = __pyx_v_loc1->size;
     for (__pyx_v_i = 1; __pyx_v_i < __pyx_t_4; __pyx_v_i++) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":664
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":668
  * 
  *             for i from 1 <= i < loc1.size:
  *                 if loc1.arr[loc1.start+i] > loc2.arr[loc2.start+i]:             # <<<<<<<<<<<<<<
@@ -40614,7 +42506,7 @@ static long __pyx_f_3_sa_23HieroCachingRuleFactory_compare_matchings(struct __py
       __pyx_t_3 = ((__pyx_v_loc1->arr[(__pyx_v_loc1->start + __pyx_v_i)]) > (__pyx_v_loc2->arr[(__pyx_v_loc2->start + __pyx_v_i)]));
       if (__pyx_t_3) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":665
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":669
  *             for i from 1 <= i < loc1.size:
  *                 if loc1.arr[loc1.start+i] > loc2.arr[loc2.start+i]:
  *                     return 1             # <<<<<<<<<<<<<<
@@ -40627,7 +42519,7 @@ static long __pyx_f_3_sa_23HieroCachingRuleFactory_compare_matchings(struct __py
       }
       __pyx_L15:;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":666
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":670
  *                 if loc1.arr[loc1.start+i] > loc2.arr[loc2.start+i]:
  *                     return 1
  *                 if loc1.arr[loc1.start+i] < loc2.arr[loc2.start+i]:             # <<<<<<<<<<<<<<
@@ -40637,7 +42529,7 @@ static long __pyx_f_3_sa_23HieroCachingRuleFactory_compare_matchings(struct __py
       __pyx_t_3 = ((__pyx_v_loc1->arr[(__pyx_v_loc1->start + __pyx_v_i)]) < (__pyx_v_loc2->arr[(__pyx_v_loc2->start + __pyx_v_i)]));
       if (__pyx_t_3) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":667
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":671
  *                     return 1
  *                 if loc1.arr[loc1.start+i] < loc2.arr[loc2.start+i]:
  *                     return -1             # <<<<<<<<<<<<<<
@@ -40653,7 +42545,7 @@ static long __pyx_f_3_sa_23HieroCachingRuleFactory_compare_matchings(struct __py
   }
   __pyx_L5:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":669
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":673
  *                     return -1
  * 
  *         if loc2.arr[loc2.end-1] + len_last - loc1.arr[loc1.start] > self.train_max_initial_size:             # <<<<<<<<<<<<<<
@@ -40663,7 +42555,7 @@ static long __pyx_f_3_sa_23HieroCachingRuleFactory_compare_matchings(struct __py
   __pyx_t_3 = ((((__pyx_v_loc2->arr[(__pyx_v_loc2->end - 1)]) + __pyx_v_len_last) - (__pyx_v_loc1->arr[__pyx_v_loc1->start])) > __pyx_v_self->train_max_initial_size);
   if (__pyx_t_3) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":670
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":674
  * 
  *         if loc2.arr[loc2.end-1] + len_last - loc1.arr[loc1.start] > self.train_max_initial_size:
  *             return -1             # <<<<<<<<<<<<<<
@@ -40676,7 +42568,7 @@ static long __pyx_f_3_sa_23HieroCachingRuleFactory_compare_matchings(struct __py
   }
   __pyx_L17:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":671
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":675
  *         if loc2.arr[loc2.end-1] + len_last - loc1.arr[loc1.start] > self.train_max_initial_size:
  *             return -1
  *         return 0             # <<<<<<<<<<<<<<
@@ -40692,7 +42584,7 @@ static long __pyx_f_3_sa_23HieroCachingRuleFactory_compare_matchings(struct __py
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":674
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":678
  * 
  * 
  *     cdef int* merge_helper(self, int low1, int high1, int* arr1, int step1,             # <<<<<<<<<<<<<<
@@ -40716,7 +42608,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_merge_helper(struct __pyx_obj
   int __pyx_t_3;
   __Pyx_RefNannySetupContext("merge_helper", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":682
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":686
  *         cdef Matching loc1, loc2
  * 
  *         result_len[0] = 0             # <<<<<<<<<<<<<<
@@ -40725,7 +42617,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_merge_helper(struct __pyx_obj
  */
   (__pyx_v_result_len[0]) = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":683
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":687
  * 
  *         result_len[0] = 0
  *         result = <int*> malloc(0*sizeof(int))             # <<<<<<<<<<<<<<
@@ -40734,7 +42626,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_merge_helper(struct __pyx_obj
  */
   __pyx_v_result = ((int *)malloc((0 * (sizeof(int)))));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":685
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":689
  *         result = <int*> malloc(0*sizeof(int))
  * 
  *         i1 = low1             # <<<<<<<<<<<<<<
@@ -40743,7 +42635,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_merge_helper(struct __pyx_obj
  */
   __pyx_v_i1 = __pyx_v_low1;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":686
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":690
  * 
  *         i1 = low1
  *         i2 = low2             # <<<<<<<<<<<<<<
@@ -40752,7 +42644,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_merge_helper(struct __pyx_obj
  */
   __pyx_v_i2 = __pyx_v_low2;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":687
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":691
  *         i1 = low1
  *         i2 = low2
  *         while i1 < high1 and i2 < high2:             # <<<<<<<<<<<<<<
@@ -40769,7 +42661,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_merge_helper(struct __pyx_obj
     }
     if (!__pyx_t_3) break;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":690
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":694
  * 
  *             # First, pop all unneeded loc2's off the stack
  *             assign_matching(&loc1, arr1, i1, step1, self.fda.sent_id.arr)             # <<<<<<<<<<<<<<
@@ -40778,7 +42670,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_merge_helper(struct __pyx_obj
  */
     __pyx_f_3_sa_assign_matching((&__pyx_v_loc1), __pyx_v_arr1, __pyx_v_i1, __pyx_v_step1, __pyx_v_self->fda->sent_id->arr);
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":691
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":695
  *             # First, pop all unneeded loc2's off the stack
  *             assign_matching(&loc1, arr1, i1, step1, self.fda.sent_id.arr)
  *             while i2 < high2:             # <<<<<<<<<<<<<<
@@ -40789,7 +42681,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_merge_helper(struct __pyx_obj
       __pyx_t_3 = (__pyx_v_i2 < __pyx_v_high2);
       if (!__pyx_t_3) break;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":692
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":696
  *             assign_matching(&loc1, arr1, i1, step1, self.fda.sent_id.arr)
  *             while i2 < high2:
  *                 assign_matching(&loc2, arr2, i2, step2, self.fda.sent_id.arr)             # <<<<<<<<<<<<<<
@@ -40798,7 +42690,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_merge_helper(struct __pyx_obj
  */
       __pyx_f_3_sa_assign_matching((&__pyx_v_loc2), __pyx_v_arr2, __pyx_v_i2, __pyx_v_step2, __pyx_v_self->fda->sent_id->arr);
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":693
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":697
  *             while i2 < high2:
  *                 assign_matching(&loc2, arr2, i2, step2, self.fda.sent_id.arr)
  *                 if self.compare_matchings(&loc1, &loc2, offset_by_one, len_last) == 1:             # <<<<<<<<<<<<<<
@@ -40808,7 +42700,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_merge_helper(struct __pyx_obj
       __pyx_t_3 = (((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->compare_matchings(__pyx_v_self, (&__pyx_v_loc1), (&__pyx_v_loc2), __pyx_v_offset_by_one, __pyx_v_len_last) == 1);
       if (__pyx_t_3) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":694
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":698
  *                 assign_matching(&loc2, arr2, i2, step2, self.fda.sent_id.arr)
  *                 if self.compare_matchings(&loc1, &loc2, offset_by_one, len_last) == 1:
  *                     i2 = i2 + step2             # <<<<<<<<<<<<<<
@@ -40820,7 +42712,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_merge_helper(struct __pyx_obj
       }
       /*else*/ {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":696
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":700
  *                     i2 = i2 + step2
  *                 else:
  *                     break             # <<<<<<<<<<<<<<
@@ -40833,7 +42725,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_merge_helper(struct __pyx_obj
     }
     __pyx_L6_break:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":699
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":703
  * 
  *             # Next: process all loc1's with the same starting val
  *             j1 = i1             # <<<<<<<<<<<<<<
@@ -40842,7 +42734,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_merge_helper(struct __pyx_obj
  */
     __pyx_v_j1 = __pyx_v_i1;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":700
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":704
  *             # Next: process all loc1's with the same starting val
  *             j1 = i1
  *             while i1 < high1 and arr1[j1] == arr1[i1]:             # <<<<<<<<<<<<<<
@@ -40859,7 +42751,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_merge_helper(struct __pyx_obj
       }
       if (!__pyx_t_2) break;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":701
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":705
  *             j1 = i1
  *             while i1 < high1 and arr1[j1] == arr1[i1]:
  *                 assign_matching(&loc1, arr1, i1, step1, self.fda.sent_id.arr)             # <<<<<<<<<<<<<<
@@ -40868,7 +42760,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_merge_helper(struct __pyx_obj
  */
       __pyx_f_3_sa_assign_matching((&__pyx_v_loc1), __pyx_v_arr1, __pyx_v_i1, __pyx_v_step1, __pyx_v_self->fda->sent_id->arr);
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":702
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":706
  *             while i1 < high1 and arr1[j1] == arr1[i1]:
  *                 assign_matching(&loc1, arr1, i1, step1, self.fda.sent_id.arr)
  *                 j2 = i2             # <<<<<<<<<<<<<<
@@ -40877,7 +42769,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_merge_helper(struct __pyx_obj
  */
       __pyx_v_j2 = __pyx_v_i2;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":703
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":707
  *                 assign_matching(&loc1, arr1, i1, step1, self.fda.sent_id.arr)
  *                 j2 = i2
  *                 while j2 < high2:             # <<<<<<<<<<<<<<
@@ -40888,7 +42780,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_merge_helper(struct __pyx_obj
         __pyx_t_2 = (__pyx_v_j2 < __pyx_v_high2);
         if (!__pyx_t_2) break;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":704
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":708
  *                 j2 = i2
  *                 while j2 < high2:
  *                     assign_matching(&loc2, arr2, j2, step2, self.fda.sent_id.arr)             # <<<<<<<<<<<<<<
@@ -40897,7 +42789,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_merge_helper(struct __pyx_obj
  */
         __pyx_f_3_sa_assign_matching((&__pyx_v_loc2), __pyx_v_arr2, __pyx_v_j2, __pyx_v_step2, __pyx_v_self->fda->sent_id->arr);
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":705
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":709
  *                 while j2 < high2:
  *                     assign_matching(&loc2, arr2, j2, step2, self.fda.sent_id.arr)
  *                     comparison = self.compare_matchings(&loc1, &loc2, offset_by_one, len_last)             # <<<<<<<<<<<<<<
@@ -40906,7 +42798,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_merge_helper(struct __pyx_obj
  */
         __pyx_v_comparison = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->compare_matchings(__pyx_v_self, (&__pyx_v_loc1), (&__pyx_v_loc2), __pyx_v_offset_by_one, __pyx_v_len_last);
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":706
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":710
  *                     assign_matching(&loc2, arr2, j2, step2, self.fda.sent_id.arr)
  *                     comparison = self.compare_matchings(&loc1, &loc2, offset_by_one, len_last)
  *                     if comparison == 0:             # <<<<<<<<<<<<<<
@@ -40916,7 +42808,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_merge_helper(struct __pyx_obj
         __pyx_t_2 = (__pyx_v_comparison == 0);
         if (__pyx_t_2) {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":707
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":711
  *                     comparison = self.compare_matchings(&loc1, &loc2, offset_by_one, len_last)
  *                     if comparison == 0:
  *                         result = append_combined_matching(result, &loc1, &loc2, offset_by_one, num_subpatterns, result_len)             # <<<<<<<<<<<<<<
@@ -40928,7 +42820,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_merge_helper(struct __pyx_obj
         }
         __pyx_L12:;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":708
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":712
  *                     if comparison == 0:
  *                         result = append_combined_matching(result, &loc1, &loc2, offset_by_one, num_subpatterns, result_len)
  *                     if comparison == 1:             # <<<<<<<<<<<<<<
@@ -40941,7 +42833,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_merge_helper(struct __pyx_obj
         }
         __pyx_L13:;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":710
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":714
  *                     if comparison == 1:
  *                         pass
  *                     if comparison == -1:             # <<<<<<<<<<<<<<
@@ -40951,7 +42843,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_merge_helper(struct __pyx_obj
         __pyx_t_2 = (__pyx_v_comparison == -1);
         if (__pyx_t_2) {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":711
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":715
  *                         pass
  *                     if comparison == -1:
  *                         break             # <<<<<<<<<<<<<<
@@ -40963,7 +42855,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_merge_helper(struct __pyx_obj
         }
         /*else*/ {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":713
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":717
  *                         break
  *                     else:
  *                         j2 = j2 + step2             # <<<<<<<<<<<<<<
@@ -40976,7 +42868,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_merge_helper(struct __pyx_obj
       }
       __pyx_L11_break:;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":714
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":718
  *                     else:
  *                         j2 = j2 + step2
  *                 i1 = i1 + step1             # <<<<<<<<<<<<<<
@@ -40987,7 +42879,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_merge_helper(struct __pyx_obj
     }
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":715
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":719
  *                         j2 = j2 + step2
  *                 i1 = i1 + step1
  *         return result             # <<<<<<<<<<<<<<
@@ -41003,7 +42895,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_merge_helper(struct __pyx_obj
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":718
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":722
  * 
  * 
  *     cdef void sort_phrase_loc(self, IntList arr, PhraseLocation loc, Phrase phrase):             # <<<<<<<<<<<<<<
@@ -41025,26 +42917,26 @@ static void __pyx_f_3_sa_23HieroCachingRuleFactory_sort_phrase_loc(struct __pyx_
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("sort_phrase_loc", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":723
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":727
  *         cdef IntList result
  * 
  *         if phrase in self.precomputed_index:             # <<<<<<<<<<<<<<
  *             loc.arr = self.precomputed_index[phrase]
  *         else:
  */
-  __pyx_t_1 = ((PySequence_Contains(__pyx_v_self->precomputed_index, ((PyObject *)__pyx_v_phrase)))); if (unlikely(__pyx_t_1 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 723; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = ((PySequence_Contains(__pyx_v_self->precomputed_index, ((PyObject *)__pyx_v_phrase)))); if (unlikely(__pyx_t_1 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 727; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   if (__pyx_t_1) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":724
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":728
  * 
  *         if phrase in self.precomputed_index:
  *             loc.arr = self.precomputed_index[phrase]             # <<<<<<<<<<<<<<
  *         else:
  *             loc.arr = IntList(initial_len=loc.sa_high-loc.sa_low)
  */
-    __pyx_t_2 = PyObject_GetItem(__pyx_v_self->precomputed_index, ((PyObject *)__pyx_v_phrase)); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 724; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyObject_GetItem(__pyx_v_self->precomputed_index, ((PyObject *)__pyx_v_phrase)); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 728; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    if (!(likely(((__pyx_t_2) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_2, __pyx_ptype_3_sa_IntList))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 724; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (!(likely(((__pyx_t_2) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_2, __pyx_ptype_3_sa_IntList))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 728; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GIVEREF(__pyx_t_2);
     __Pyx_GOTREF(__pyx_v_loc->arr);
     __Pyx_DECREF(((PyObject *)__pyx_v_loc->arr));
@@ -41054,20 +42946,20 @@ static void __pyx_f_3_sa_23HieroCachingRuleFactory_sort_phrase_loc(struct __pyx_
   }
   /*else*/ {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":726
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":730
  *             loc.arr = self.precomputed_index[phrase]
  *         else:
  *             loc.arr = IntList(initial_len=loc.sa_high-loc.sa_low)             # <<<<<<<<<<<<<<
  *             veb = VEB(arr.len)
  *             for i from loc.sa_low <= i < loc.sa_high:
  */
-    __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 726; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 730; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(((PyObject *)__pyx_t_2));
-    __pyx_t_3 = PyInt_FromLong((__pyx_v_loc->sa_high - __pyx_v_loc->sa_low)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 726; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyInt_FromLong((__pyx_v_loc->sa_high - __pyx_v_loc->sa_low)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 730; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
-    if (PyDict_SetItem(__pyx_t_2, ((PyObject *)__pyx_n_s__initial_len), __pyx_t_3) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 726; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (PyDict_SetItem(__pyx_t_2, ((PyObject *)__pyx_n_s__initial_len), __pyx_t_3) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 730; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_2)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 726; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_2)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 730; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
     __Pyx_GIVEREF(__pyx_t_3);
@@ -41076,27 +42968,27 @@ static void __pyx_f_3_sa_23HieroCachingRuleFactory_sort_phrase_loc(struct __pyx_
     __pyx_v_loc->arr = ((struct __pyx_obj_3_sa_IntList *)__pyx_t_3);
     __pyx_t_3 = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":727
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":731
  *         else:
  *             loc.arr = IntList(initial_len=loc.sa_high-loc.sa_low)
  *             veb = VEB(arr.len)             # <<<<<<<<<<<<<<
  *             for i from loc.sa_low <= i < loc.sa_high:
  *                 veb._insert(arr.arr[i])
  */
-    __pyx_t_3 = PyInt_FromLong(__pyx_v_arr->len); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 727; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyInt_FromLong(__pyx_v_arr->len); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 731; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 727; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 731; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_t_3);
     __Pyx_GIVEREF(__pyx_t_3);
     __pyx_t_3 = 0;
-    __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_VEB)), ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 727; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_VEB)), ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 731; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
     __pyx_v_veb = ((struct __pyx_obj_3_sa_VEB *)__pyx_t_3);
     __pyx_t_3 = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":728
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":732
  *             loc.arr = IntList(initial_len=loc.sa_high-loc.sa_low)
  *             veb = VEB(arr.len)
  *             for i from loc.sa_low <= i < loc.sa_high:             # <<<<<<<<<<<<<<
@@ -41106,7 +42998,7 @@ static void __pyx_f_3_sa_23HieroCachingRuleFactory_sort_phrase_loc(struct __pyx_
     __pyx_t_4 = __pyx_v_loc->sa_high;
     for (__pyx_v_i = __pyx_v_loc->sa_low; __pyx_v_i < __pyx_t_4; __pyx_v_i++) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":729
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":733
  *             veb = VEB(arr.len)
  *             for i from loc.sa_low <= i < loc.sa_high:
  *                 veb._insert(arr.arr[i])             # <<<<<<<<<<<<<<
@@ -41116,7 +43008,7 @@ static void __pyx_f_3_sa_23HieroCachingRuleFactory_sort_phrase_loc(struct __pyx_
       ((struct __pyx_vtabstruct_3_sa_VEB *)__pyx_v_veb->__pyx_vtab)->_insert(__pyx_v_veb, (__pyx_v_arr->arr[__pyx_v_i]));
     }
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":730
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":734
  *             for i from loc.sa_low <= i < loc.sa_high:
  *                 veb._insert(arr.arr[i])
  *             i = veb.veb.min_val             # <<<<<<<<<<<<<<
@@ -41125,7 +43017,7 @@ static void __pyx_f_3_sa_23HieroCachingRuleFactory_sort_phrase_loc(struct __pyx_
  */
     __pyx_v_i = __pyx_v_veb->veb->min_val;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":731
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":735
  *                 veb._insert(arr.arr[i])
  *             i = veb.veb.min_val
  *             for j from 0 <= j < loc.sa_high-loc.sa_low:             # <<<<<<<<<<<<<<
@@ -41135,7 +43027,7 @@ static void __pyx_f_3_sa_23HieroCachingRuleFactory_sort_phrase_loc(struct __pyx_
     __pyx_t_4 = (__pyx_v_loc->sa_high - __pyx_v_loc->sa_low);
     for (__pyx_v_j = 0; __pyx_v_j < __pyx_t_4; __pyx_v_j++) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":732
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":736
  *             i = veb.veb.min_val
  *             for j from 0 <= j < loc.sa_high-loc.sa_low:
  *                 loc.arr.arr[j] = i             # <<<<<<<<<<<<<<
@@ -41144,7 +43036,7 @@ static void __pyx_f_3_sa_23HieroCachingRuleFactory_sort_phrase_loc(struct __pyx_
  */
       (__pyx_v_loc->arr->arr[__pyx_v_j]) = __pyx_v_i;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":733
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":737
  *             for j from 0 <= j < loc.sa_high-loc.sa_low:
  *                 loc.arr.arr[j] = i
  *                 i = veb._findsucc(i)             # <<<<<<<<<<<<<<
@@ -41156,7 +43048,7 @@ static void __pyx_f_3_sa_23HieroCachingRuleFactory_sort_phrase_loc(struct __pyx_
   }
   __pyx_L3:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":734
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":738
  *                 loc.arr.arr[j] = i
  *                 i = veb._findsucc(i)
  *         loc.arr_low = 0             # <<<<<<<<<<<<<<
@@ -41165,7 +43057,7 @@ static void __pyx_f_3_sa_23HieroCachingRuleFactory_sort_phrase_loc(struct __pyx_
  */
   __pyx_v_loc->arr_low = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":735
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":739
  *                 i = veb._findsucc(i)
  *         loc.arr_low = 0
  *         loc.arr_high = loc.arr.len             # <<<<<<<<<<<<<<
@@ -41184,7 +43076,7 @@ static void __pyx_f_3_sa_23HieroCachingRuleFactory_sort_phrase_loc(struct __pyx_
   __Pyx_RefNannyFinishContext();
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":738
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":742
  * 
  * 
  *     cdef intersect_helper(self, Phrase prefix, Phrase suffix,             # <<<<<<<<<<<<<<
@@ -41221,7 +43113,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_intersect_helper(struct
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("intersect_helper", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":745
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":749
  *         cdef int* result_ptr
  * 
  *         result_len = 0             # <<<<<<<<<<<<<<
@@ -41230,21 +43122,21 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_intersect_helper(struct
  */
   __pyx_v_result_len = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":747
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":751
  *         result_len = 0
  * 
  *         if sym_isvar(suffix[0]):             # <<<<<<<<<<<<<<
  *             offset_by_one = 1
  *         else:
  */
-  __pyx_t_1 = __Pyx_GetItemInt(((PyObject *)__pyx_v_suffix), 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 747; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_GetItemInt(((PyObject *)__pyx_v_suffix), 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 751; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = __Pyx_PyInt_AsInt(__pyx_t_1); if (unlikely((__pyx_t_2 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 747; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = __Pyx_PyInt_AsInt(__pyx_t_1); if (unlikely((__pyx_t_2 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 751; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __pyx_t_3 = __pyx_f_3_sa_sym_isvar(__pyx_t_2);
   if (__pyx_t_3) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":748
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":752
  * 
  *         if sym_isvar(suffix[0]):
  *             offset_by_one = 1             # <<<<<<<<<<<<<<
@@ -41256,7 +43148,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_intersect_helper(struct
   }
   /*else*/ {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":750
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":754
  *             offset_by_one = 1
  *         else:
  *             offset_by_one = 0             # <<<<<<<<<<<<<<
@@ -41267,34 +43159,34 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_intersect_helper(struct
   }
   __pyx_L3:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":752
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":756
  *             offset_by_one = 0
  * 
  *         len_last = len(suffix.getchunk(suffix.arity()))             # <<<<<<<<<<<<<<
  * 
  *         if prefix_loc.arr is None:
  */
-  __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_v_suffix), __pyx_n_s__getchunk); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 752; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_v_suffix), __pyx_n_s__getchunk); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 756; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_4 = PyObject_GetAttr(((PyObject *)__pyx_v_suffix), __pyx_n_s__arity); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 752; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_4 = PyObject_GetAttr(((PyObject *)__pyx_v_suffix), __pyx_n_s__arity); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 756; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_4);
-  __pyx_t_5 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 752; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_5 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 756; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_5);
   __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-  __pyx_t_4 = PyTuple_New(1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 752; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_4 = PyTuple_New(1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 756; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_4);
   PyTuple_SET_ITEM(__pyx_t_4, 0, __pyx_t_5);
   __Pyx_GIVEREF(__pyx_t_5);
   __pyx_t_5 = 0;
-  __pyx_t_5 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 752; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_5 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 756; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_5);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
-  __pyx_t_6 = PyObject_Length(__pyx_t_5); if (unlikely(__pyx_t_6 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 752; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_6 = PyObject_Length(__pyx_t_5); if (unlikely(__pyx_t_6 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 756; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
   __pyx_v_len_last = __pyx_t_6;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":754
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":758
  *         len_last = len(suffix.getchunk(suffix.arity()))
  * 
  *         if prefix_loc.arr is None:             # <<<<<<<<<<<<<<
@@ -41304,7 +43196,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_intersect_helper(struct
   __pyx_t_7 = (((PyObject *)__pyx_v_prefix_loc->arr) == Py_None);
   if (__pyx_t_7) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":755
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":759
  * 
  *         if prefix_loc.arr is None:
  *             self.sort_phrase_loc(self.fsa.sa, prefix_loc, prefix)             # <<<<<<<<<<<<<<
@@ -41319,7 +43211,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_intersect_helper(struct
   }
   __pyx_L4:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":756
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":760
  *         if prefix_loc.arr is None:
  *             self.sort_phrase_loc(self.fsa.sa, prefix_loc, prefix)
  *         arr1 = prefix_loc.arr             # <<<<<<<<<<<<<<
@@ -41329,7 +43221,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_intersect_helper(struct
   __Pyx_INCREF(((PyObject *)__pyx_v_prefix_loc->arr));
   __pyx_v_arr1 = __pyx_v_prefix_loc->arr;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":757
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":761
  *             self.sort_phrase_loc(self.fsa.sa, prefix_loc, prefix)
  *         arr1 = prefix_loc.arr
  *         low1 = prefix_loc.arr_low             # <<<<<<<<<<<<<<
@@ -41338,7 +43230,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_intersect_helper(struct
  */
   __pyx_v_low1 = __pyx_v_prefix_loc->arr_low;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":758
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":762
  *         arr1 = prefix_loc.arr
  *         low1 = prefix_loc.arr_low
  *         high1 = prefix_loc.arr_high             # <<<<<<<<<<<<<<
@@ -41347,7 +43239,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_intersect_helper(struct
  */
   __pyx_v_high1 = __pyx_v_prefix_loc->arr_high;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":759
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":763
  *         low1 = prefix_loc.arr_low
  *         high1 = prefix_loc.arr_high
  *         step1 = prefix_loc.num_subpatterns             # <<<<<<<<<<<<<<
@@ -41356,7 +43248,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_intersect_helper(struct
  */
   __pyx_v_step1 = __pyx_v_prefix_loc->num_subpatterns;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":761
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":765
  *         step1 = prefix_loc.num_subpatterns
  * 
  *         if suffix_loc.arr is None:             # <<<<<<<<<<<<<<
@@ -41366,7 +43258,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_intersect_helper(struct
   __pyx_t_7 = (((PyObject *)__pyx_v_suffix_loc->arr) == Py_None);
   if (__pyx_t_7) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":762
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":766
  * 
  *         if suffix_loc.arr is None:
  *             self.sort_phrase_loc(self.fsa.sa, suffix_loc, suffix)             # <<<<<<<<<<<<<<
@@ -41381,7 +43273,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_intersect_helper(struct
   }
   __pyx_L5:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":763
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":767
  *         if suffix_loc.arr is None:
  *             self.sort_phrase_loc(self.fsa.sa, suffix_loc, suffix)
  *         arr2 = suffix_loc.arr             # <<<<<<<<<<<<<<
@@ -41391,7 +43283,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_intersect_helper(struct
   __Pyx_INCREF(((PyObject *)__pyx_v_suffix_loc->arr));
   __pyx_v_arr2 = __pyx_v_suffix_loc->arr;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":764
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":768
  *             self.sort_phrase_loc(self.fsa.sa, suffix_loc, suffix)
  *         arr2 = suffix_loc.arr
  *         low2 = suffix_loc.arr_low             # <<<<<<<<<<<<<<
@@ -41400,7 +43292,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_intersect_helper(struct
  */
   __pyx_v_low2 = __pyx_v_suffix_loc->arr_low;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":765
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":769
  *         arr2 = suffix_loc.arr
  *         low2 = suffix_loc.arr_low
  *         high2 = suffix_loc.arr_high             # <<<<<<<<<<<<<<
@@ -41409,7 +43301,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_intersect_helper(struct
  */
   __pyx_v_high2 = __pyx_v_suffix_loc->arr_high;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":766
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":770
  *         low2 = suffix_loc.arr_low
  *         high2 = suffix_loc.arr_high
  *         step2 = suffix_loc.num_subpatterns             # <<<<<<<<<<<<<<
@@ -41418,26 +43310,26 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_intersect_helper(struct
  */
   __pyx_v_step2 = __pyx_v_suffix_loc->num_subpatterns;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":768
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":772
  *         step2 = suffix_loc.num_subpatterns
  * 
  *         num_subpatterns = prefix.arity()+1             # <<<<<<<<<<<<<<
  * 
  *         if algorithm == MERGE:
  */
-  __pyx_t_5 = PyObject_GetAttr(((PyObject *)__pyx_v_prefix), __pyx_n_s__arity); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 768; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_5 = PyObject_GetAttr(((PyObject *)__pyx_v_prefix), __pyx_n_s__arity); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 772; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_5);
-  __pyx_t_4 = PyObject_Call(__pyx_t_5, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 768; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_4 = PyObject_Call(__pyx_t_5, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 772; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_4);
   __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-  __pyx_t_5 = PyNumber_Add(__pyx_t_4, __pyx_int_1); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 768; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_5 = PyNumber_Add(__pyx_t_4, __pyx_int_1); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 772; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_5);
   __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-  __pyx_t_3 = __Pyx_PyInt_AsInt(__pyx_t_5); if (unlikely((__pyx_t_3 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 768; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = __Pyx_PyInt_AsInt(__pyx_t_5); if (unlikely((__pyx_t_3 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 772; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
   __pyx_v_num_subpatterns = __pyx_t_3;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":770
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":774
  *         num_subpatterns = prefix.arity()+1
  * 
  *         if algorithm == MERGE:             # <<<<<<<<<<<<<<
@@ -41447,7 +43339,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_intersect_helper(struct
   __pyx_t_7 = (__pyx_v_algorithm == __pyx_v_3_sa_MERGE);
   if (__pyx_t_7) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":773
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":777
  *             result_ptr = self.merge_helper(low1, high1, arr1.arr, step1,
  *                                     low2, high2, arr2.arr, step2,
  *                                     offset_by_one, len_last, num_subpatterns, &result_len)             # <<<<<<<<<<<<<<
@@ -41459,7 +43351,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_intersect_helper(struct
   }
   /*else*/ {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":777
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":781
  *             result_ptr = self.baeza_yates_helper(low1, high1, arr1.arr, step1,
  *                                     low2, high2, arr2.arr, step2,
  *                                     offset_by_one, len_last, num_subpatterns, &result_len)             # <<<<<<<<<<<<<<
@@ -41470,7 +43362,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_intersect_helper(struct
   }
   __pyx_L6:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":779
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":783
  *                                     offset_by_one, len_last, num_subpatterns, &result_len)
  * 
  *         if result_len == 0:             # <<<<<<<<<<<<<<
@@ -41480,7 +43372,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_intersect_helper(struct
   __pyx_t_7 = (__pyx_v_result_len == 0);
   if (__pyx_t_7) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":780
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":784
  * 
  *         if result_len == 0:
  *             free(result_ptr)             # <<<<<<<<<<<<<<
@@ -41489,7 +43381,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_intersect_helper(struct
  */
     free(__pyx_v_result_ptr);
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":781
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":785
  *         if result_len == 0:
  *             free(result_ptr)
  *             return None             # <<<<<<<<<<<<<<
@@ -41504,19 +43396,19 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_intersect_helper(struct
   }
   /*else*/ {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":783
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":787
  *             return None
  *         else:
  *             result = IntList()             # <<<<<<<<<<<<<<
  *             free(result.arr)
  *             result.arr = result_ptr
  */
-    __pyx_t_5 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 783; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 787; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
     __pyx_v_result = ((struct __pyx_obj_3_sa_IntList *)__pyx_t_5);
     __pyx_t_5 = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":784
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":788
  *         else:
  *             result = IntList()
  *             free(result.arr)             # <<<<<<<<<<<<<<
@@ -41525,7 +43417,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_intersect_helper(struct
  */
     free(__pyx_v_result->arr);
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":785
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":789
  *             result = IntList()
  *             free(result.arr)
  *             result.arr = result_ptr             # <<<<<<<<<<<<<<
@@ -41534,7 +43426,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_intersect_helper(struct
  */
     __pyx_v_result->arr = __pyx_v_result_ptr;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":786
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":790
  *             free(result.arr)
  *             result.arr = result_ptr
  *             result.len = result_len             # <<<<<<<<<<<<<<
@@ -41543,7 +43435,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_intersect_helper(struct
  */
     __pyx_v_result->len = __pyx_v_result_len;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":787
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":791
  *             result.arr = result_ptr
  *             result.len = result_len
  *             result.size = result_len             # <<<<<<<<<<<<<<
@@ -41552,7 +43444,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_intersect_helper(struct
  */
     __pyx_v_result->size = __pyx_v_result_len;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":788
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":792
  *             result.len = result_len
  *             result.size = result_len
  *             return PhraseLocation(arr_low=0, arr_high=result_len, arr=result, num_subpatterns=num_subpatterns)             # <<<<<<<<<<<<<<
@@ -41560,19 +43452,19 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_intersect_helper(struct
  *     cdef loc2str(self, PhraseLocation loc):
  */
     __Pyx_XDECREF(__pyx_r);
-    __pyx_t_5 = PyDict_New(); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 788; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyDict_New(); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 792; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(((PyObject *)__pyx_t_5));
-    if (PyDict_SetItem(__pyx_t_5, ((PyObject *)__pyx_n_s__arr_low), __pyx_int_0) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 788; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __pyx_t_4 = PyInt_FromLong(__pyx_v_result_len); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 788; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (PyDict_SetItem(__pyx_t_5, ((PyObject *)__pyx_n_s__arr_low), __pyx_int_0) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 792; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyInt_FromLong(__pyx_v_result_len); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 792; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
-    if (PyDict_SetItem(__pyx_t_5, ((PyObject *)__pyx_n_s__arr_high), __pyx_t_4) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 788; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (PyDict_SetItem(__pyx_t_5, ((PyObject *)__pyx_n_s__arr_high), __pyx_t_4) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 792; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    if (PyDict_SetItem(__pyx_t_5, ((PyObject *)__pyx_n_s__arr), ((PyObject *)__pyx_v_result)) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 788; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __pyx_t_4 = PyInt_FromLong(__pyx_v_num_subpatterns); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 788; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (PyDict_SetItem(__pyx_t_5, ((PyObject *)__pyx_n_s__arr), ((PyObject *)__pyx_v_result)) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 792; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyInt_FromLong(__pyx_v_num_subpatterns); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 792; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
-    if (PyDict_SetItem(__pyx_t_5, ((PyObject *)__pyx_n_s__num_subpatterns), __pyx_t_4) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 788; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (PyDict_SetItem(__pyx_t_5, ((PyObject *)__pyx_n_s__num_subpatterns), __pyx_t_4) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 792; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    __pyx_t_4 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_PhraseLocation)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_5)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 788; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_PhraseLocation)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_5)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 792; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(((PyObject *)__pyx_t_5)); __pyx_t_5 = 0;
     __pyx_r = __pyx_t_4;
@@ -41598,7 +43490,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_intersect_helper(struct
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":790
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":794
  *             return PhraseLocation(arr_low=0, arr_high=result_len, arr=result, num_subpatterns=num_subpatterns)
  * 
  *     cdef loc2str(self, PhraseLocation loc):             # <<<<<<<<<<<<<<
@@ -41621,17 +43513,17 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_loc2str(CYTHON_UNUSED st
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("loc2str", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":792
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":796
  *     cdef loc2str(self, PhraseLocation loc):
  *         cdef int i, j
  *         result = "{"             # <<<<<<<<<<<<<<
  *         i = 0
  *         while i < loc.arr_high:
  */
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_116));
-  __pyx_v_result = ((PyObject *)__pyx_kp_s_116);
+  __Pyx_INCREF(((PyObject *)__pyx_kp_s_118));
+  __pyx_v_result = ((PyObject *)__pyx_kp_s_118);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":793
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":797
  *         cdef int i, j
  *         result = "{"
  *         i = 0             # <<<<<<<<<<<<<<
@@ -41640,7 +43532,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_loc2str(CYTHON_UNUSED st
  */
   __pyx_v_i = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":794
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":798
  *         result = "{"
  *         i = 0
  *         while i < loc.arr_high:             # <<<<<<<<<<<<<<
@@ -41651,20 +43543,20 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_loc2str(CYTHON_UNUSED st
     __pyx_t_1 = (__pyx_v_i < __pyx_v_loc->arr_high);
     if (!__pyx_t_1) break;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":795
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":799
  *         i = 0
  *         while i < loc.arr_high:
  *             result = result + "("             # <<<<<<<<<<<<<<
  *             for j from i <= j < i + loc.num_subpatterns:
  *                 result = result + ("%d " %loc.arr[j])
  */
-    __pyx_t_2 = PyNumber_Add(__pyx_v_result, ((PyObject *)__pyx_kp_s_117)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 795; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyNumber_Add(__pyx_v_result, ((PyObject *)__pyx_kp_s_119)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 799; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_v_result);
     __pyx_v_result = __pyx_t_2;
     __pyx_t_2 = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":796
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":800
  *         while i < loc.arr_high:
  *             result = result + "("
  *             for j from i <= j < i + loc.num_subpatterns:             # <<<<<<<<<<<<<<
@@ -41674,19 +43566,19 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_loc2str(CYTHON_UNUSED st
     __pyx_t_3 = (__pyx_v_i + __pyx_v_loc->num_subpatterns);
     for (__pyx_v_j = __pyx_v_i; __pyx_v_j < __pyx_t_3; __pyx_v_j++) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":797
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":801
  *             result = result + "("
  *             for j from i <= j < i + loc.num_subpatterns:
  *                 result = result + ("%d " %loc.arr[j])             # <<<<<<<<<<<<<<
  *             result = result + ")"
  *             i = i + loc.num_subpatterns
  */
-      __pyx_t_2 = __Pyx_GetItemInt(((PyObject *)__pyx_v_loc->arr), __pyx_v_j, sizeof(int), PyInt_FromLong); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 797; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = __Pyx_GetItemInt(((PyObject *)__pyx_v_loc->arr), __pyx_v_j, sizeof(int), PyInt_FromLong); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 801; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_4 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_21), __pyx_t_2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 797; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_21), __pyx_t_2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 801; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(((PyObject *)__pyx_t_4));
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-      __pyx_t_2 = PyNumber_Add(__pyx_v_result, ((PyObject *)__pyx_t_4)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 797; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyNumber_Add(__pyx_v_result, ((PyObject *)__pyx_t_4)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 801; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
       __Pyx_DECREF(__pyx_v_result);
@@ -41694,20 +43586,20 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_loc2str(CYTHON_UNUSED st
       __pyx_t_2 = 0;
     }
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":798
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":802
  *             for j from i <= j < i + loc.num_subpatterns:
  *                 result = result + ("%d " %loc.arr[j])
  *             result = result + ")"             # <<<<<<<<<<<<<<
  *             i = i + loc.num_subpatterns
  *         result = result + "}"
  */
-    __pyx_t_2 = PyNumber_Add(__pyx_v_result, ((PyObject *)__pyx_kp_s_59)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 798; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyNumber_Add(__pyx_v_result, ((PyObject *)__pyx_kp_s_59)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 802; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_v_result);
     __pyx_v_result = __pyx_t_2;
     __pyx_t_2 = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":799
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":803
  *                 result = result + ("%d " %loc.arr[j])
  *             result = result + ")"
  *             i = i + loc.num_subpatterns             # <<<<<<<<<<<<<<
@@ -41717,20 +43609,20 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_loc2str(CYTHON_UNUSED st
     __pyx_v_i = (__pyx_v_i + __pyx_v_loc->num_subpatterns);
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":800
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":804
  *             result = result + ")"
  *             i = i + loc.num_subpatterns
  *         result = result + "}"             # <<<<<<<<<<<<<<
  *         return result
  * 
  */
-  __pyx_t_2 = PyNumber_Add(__pyx_v_result, ((PyObject *)__pyx_kp_s_118)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 800; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyNumber_Add(__pyx_v_result, ((PyObject *)__pyx_kp_s_120)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 804; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_v_result);
   __pyx_v_result = __pyx_t_2;
   __pyx_t_2 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":801
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":805
  *             i = i + loc.num_subpatterns
  *         result = result + "}"
  *         return result             # <<<<<<<<<<<<<<
@@ -41756,7 +43648,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_loc2str(CYTHON_UNUSED st
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":803
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":807
  *         return result
  * 
  *     cdef PhraseLocation intersect(self, prefix_node, suffix_node, Phrase phrase):             # <<<<<<<<<<<<<<
@@ -41782,81 +43674,81 @@ static struct __pyx_obj_3_sa_PhraseLocation *__pyx_f_3_sa_23HieroCachingRuleFact
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("intersect", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":807
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":811
  *         cdef PhraseLocation prefix_loc, suffix_loc, result
  * 
  *         prefix = prefix_node.phrase             # <<<<<<<<<<<<<<
  *         suffix = suffix_node.phrase
  *         prefix_loc = prefix_node.phrase_location
  */
-  __pyx_t_1 = PyObject_GetAttr(__pyx_v_prefix_node, __pyx_n_s__phrase); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 807; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_GetAttr(__pyx_v_prefix_node, __pyx_n_s__phrase); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 811; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  if (!(likely(((__pyx_t_1) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_1, __pyx_ptype_3_sa_Phrase))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 807; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (!(likely(((__pyx_t_1) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_1, __pyx_ptype_3_sa_Phrase))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 811; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_v_prefix = ((struct __pyx_obj_3_sa_Phrase *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":808
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":812
  * 
  *         prefix = prefix_node.phrase
  *         suffix = suffix_node.phrase             # <<<<<<<<<<<<<<
  *         prefix_loc = prefix_node.phrase_location
  *         suffix_loc = suffix_node.phrase_location
  */
-  __pyx_t_1 = PyObject_GetAttr(__pyx_v_suffix_node, __pyx_n_s__phrase); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 808; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_GetAttr(__pyx_v_suffix_node, __pyx_n_s__phrase); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 812; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  if (!(likely(((__pyx_t_1) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_1, __pyx_ptype_3_sa_Phrase))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 808; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (!(likely(((__pyx_t_1) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_1, __pyx_ptype_3_sa_Phrase))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 812; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_v_suffix = ((struct __pyx_obj_3_sa_Phrase *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":809
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":813
  *         prefix = prefix_node.phrase
  *         suffix = suffix_node.phrase
  *         prefix_loc = prefix_node.phrase_location             # <<<<<<<<<<<<<<
  *         suffix_loc = suffix_node.phrase_location
  * 
  */
-  __pyx_t_1 = PyObject_GetAttr(__pyx_v_prefix_node, __pyx_n_s__phrase_location); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 809; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_GetAttr(__pyx_v_prefix_node, __pyx_n_s__phrase_location); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 813; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  if (!(likely(((__pyx_t_1) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_1, __pyx_ptype_3_sa_PhraseLocation))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 809; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (!(likely(((__pyx_t_1) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_1, __pyx_ptype_3_sa_PhraseLocation))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 813; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_v_prefix_loc = ((struct __pyx_obj_3_sa_PhraseLocation *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":810
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":814
  *         suffix = suffix_node.phrase
  *         prefix_loc = prefix_node.phrase_location
  *         suffix_loc = suffix_node.phrase_location             # <<<<<<<<<<<<<<
  * 
  *         result = self.get_precomputed_collocation(phrase)
  */
-  __pyx_t_1 = PyObject_GetAttr(__pyx_v_suffix_node, __pyx_n_s__phrase_location); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 810; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_GetAttr(__pyx_v_suffix_node, __pyx_n_s__phrase_location); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 814; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  if (!(likely(((__pyx_t_1) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_1, __pyx_ptype_3_sa_PhraseLocation))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 810; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (!(likely(((__pyx_t_1) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_1, __pyx_ptype_3_sa_PhraseLocation))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 814; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_v_suffix_loc = ((struct __pyx_obj_3_sa_PhraseLocation *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":812
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":816
  *         suffix_loc = suffix_node.phrase_location
  * 
  *         result = self.get_precomputed_collocation(phrase)             # <<<<<<<<<<<<<<
  *         if result is not None:
  *             intersect_method = "precomputed"
  */
-  __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_v_self), __pyx_n_s_119); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 812; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_v_self), __pyx_n_s_121); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 816; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 812; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 816; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_INCREF(((PyObject *)__pyx_v_phrase));
   PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_v_phrase));
   __Pyx_GIVEREF(((PyObject *)__pyx_v_phrase));
-  __pyx_t_3 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 812; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 816; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
-  if (!(likely(((__pyx_t_3) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_3, __pyx_ptype_3_sa_PhraseLocation))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 812; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (!(likely(((__pyx_t_3) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_3, __pyx_ptype_3_sa_PhraseLocation))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 816; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_v_result = ((struct __pyx_obj_3_sa_PhraseLocation *)__pyx_t_3);
   __pyx_t_3 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":813
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":817
  * 
  *         result = self.get_precomputed_collocation(phrase)
  *         if result is not None:             # <<<<<<<<<<<<<<
@@ -41866,7 +43758,7 @@ static struct __pyx_obj_3_sa_PhraseLocation *__pyx_f_3_sa_23HieroCachingRuleFact
   __pyx_t_4 = (((PyObject *)__pyx_v_result) != Py_None);
   if (__pyx_t_4) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":814
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":818
  *         result = self.get_precomputed_collocation(phrase)
  *         if result is not None:
  *             intersect_method = "precomputed"             # <<<<<<<<<<<<<<
@@ -41879,7 +43771,7 @@ static struct __pyx_obj_3_sa_PhraseLocation *__pyx_f_3_sa_23HieroCachingRuleFact
   }
   __pyx_L3:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":816
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":820
  *             intersect_method = "precomputed"
  * 
  *         if result is None:             # <<<<<<<<<<<<<<
@@ -41889,7 +43781,7 @@ static struct __pyx_obj_3_sa_PhraseLocation *__pyx_f_3_sa_23HieroCachingRuleFact
   __pyx_t_4 = (((PyObject *)__pyx_v_result) == Py_None);
   if (__pyx_t_4) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":817
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":821
  * 
  *         if result is None:
  *             if self.use_baeza_yates:             # <<<<<<<<<<<<<<
@@ -41898,49 +43790,49 @@ static struct __pyx_obj_3_sa_PhraseLocation *__pyx_f_3_sa_23HieroCachingRuleFact
  */
     if (__pyx_v_self->use_baeza_yates) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":818
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":822
  *         if result is None:
  *             if self.use_baeza_yates:
  *                 result = self.intersect_helper(prefix, suffix, prefix_loc, suffix_loc, BAEZA_YATES)             # <<<<<<<<<<<<<<
  *                 intersect_method="double binary"
  *             else:
  */
-      __pyx_t_3 = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->intersect_helper(__pyx_v_self, __pyx_v_prefix, __pyx_v_suffix, __pyx_v_prefix_loc, __pyx_v_suffix_loc, __pyx_v_3_sa_BAEZA_YATES); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 818; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->intersect_helper(__pyx_v_self, __pyx_v_prefix, __pyx_v_suffix, __pyx_v_prefix_loc, __pyx_v_suffix_loc, __pyx_v_3_sa_BAEZA_YATES); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 822; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
-      if (!(likely(((__pyx_t_3) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_3, __pyx_ptype_3_sa_PhraseLocation))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 818; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      if (!(likely(((__pyx_t_3) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_3, __pyx_ptype_3_sa_PhraseLocation))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 822; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(((PyObject *)__pyx_v_result));
       __pyx_v_result = ((struct __pyx_obj_3_sa_PhraseLocation *)__pyx_t_3);
       __pyx_t_3 = 0;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":819
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":823
  *             if self.use_baeza_yates:
  *                 result = self.intersect_helper(prefix, suffix, prefix_loc, suffix_loc, BAEZA_YATES)
  *                 intersect_method="double binary"             # <<<<<<<<<<<<<<
  *             else:
  *                 result = self.intersect_helper(prefix, suffix, prefix_loc, suffix_loc, MERGE)
  */
-      __Pyx_INCREF(((PyObject *)__pyx_kp_s_120));
+      __Pyx_INCREF(((PyObject *)__pyx_kp_s_122));
       __Pyx_XDECREF(__pyx_v_intersect_method);
-      __pyx_v_intersect_method = ((PyObject *)__pyx_kp_s_120);
+      __pyx_v_intersect_method = ((PyObject *)__pyx_kp_s_122);
       goto __pyx_L5;
     }
     /*else*/ {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":821
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":825
  *                 intersect_method="double binary"
  *             else:
  *                 result = self.intersect_helper(prefix, suffix, prefix_loc, suffix_loc, MERGE)             # <<<<<<<<<<<<<<
  *                 intersect_method="merge"
  *         return result
  */
-      __pyx_t_3 = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->intersect_helper(__pyx_v_self, __pyx_v_prefix, __pyx_v_suffix, __pyx_v_prefix_loc, __pyx_v_suffix_loc, __pyx_v_3_sa_MERGE); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 821; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->intersect_helper(__pyx_v_self, __pyx_v_prefix, __pyx_v_suffix, __pyx_v_prefix_loc, __pyx_v_suffix_loc, __pyx_v_3_sa_MERGE); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 825; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
-      if (!(likely(((__pyx_t_3) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_3, __pyx_ptype_3_sa_PhraseLocation))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 821; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      if (!(likely(((__pyx_t_3) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_3, __pyx_ptype_3_sa_PhraseLocation))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 825; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(((PyObject *)__pyx_v_result));
       __pyx_v_result = ((struct __pyx_obj_3_sa_PhraseLocation *)__pyx_t_3);
       __pyx_t_3 = 0;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":822
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":826
  *             else:
  *                 result = self.intersect_helper(prefix, suffix, prefix_loc, suffix_loc, MERGE)
  *                 intersect_method="merge"             # <<<<<<<<<<<<<<
@@ -41956,7 +43848,7 @@ static struct __pyx_obj_3_sa_PhraseLocation *__pyx_f_3_sa_23HieroCachingRuleFact
   }
   __pyx_L4:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":823
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":827
  *                 result = self.intersect_helper(prefix, suffix, prefix_loc, suffix_loc, MERGE)
  *                 intersect_method="merge"
  *         return result             # <<<<<<<<<<<<<<
@@ -42018,16 +43910,16 @@ static PyObject *__pyx_pw_3_sa_23HieroCachingRuleFactory_13advance(PyObject *__p
         case  1:
         if (likely((values[1] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__res)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("advance", 1, 3, 3, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 825; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("advance", 1, 3, 3, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 829; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
         case  2:
         if (likely((values[2] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__fwords)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("advance", 1, 3, 3, 2); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 825; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("advance", 1, 3, 3, 2); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 829; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "advance") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 825; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "advance") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 829; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else if (PyTuple_GET_SIZE(__pyx_args) != 3) {
       goto __pyx_L5_argtuple_error;
@@ -42042,7 +43934,7 @@ static PyObject *__pyx_pw_3_sa_23HieroCachingRuleFactory_13advance(PyObject *__p
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("advance", 1, 3, 3, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 825; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+  __Pyx_RaiseArgtupleInvalid("advance", 1, 3, 3, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 829; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_AddTraceback("_sa.HieroCachingRuleFactory.advance", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -42053,7 +43945,7 @@ static PyObject *__pyx_pw_3_sa_23HieroCachingRuleFactory_13advance(PyObject *__p
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":825
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":829
  *         return result
  * 
  *     def advance(self, frontier, res, fwords):             # <<<<<<<<<<<<<<
@@ -42094,19 +43986,19 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_12advance(struct __pyx_
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("advance", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":827
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":831
  *     def advance(self, frontier, res, fwords):
  *         cdef unsigned na
  *         nf = []             # <<<<<<<<<<<<<<
  *         for (toskip, (i, alt, pathlen)) in frontier:
  *             spanlen = fwords[i][alt][2]
  */
-  __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 827; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 831; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_v_nf = __pyx_t_1;
   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":828
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":832
  *         cdef unsigned na
  *         nf = []
  *         for (toskip, (i, alt, pathlen)) in frontier:             # <<<<<<<<<<<<<<
@@ -42117,7 +44009,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_12advance(struct __pyx_
     __pyx_t_1 = __pyx_v_frontier; __Pyx_INCREF(__pyx_t_1); __pyx_t_2 = 0;
     __pyx_t_3 = NULL;
   } else {
-    __pyx_t_2 = -1; __pyx_t_1 = PyObject_GetIter(__pyx_v_frontier); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 828; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = -1; __pyx_t_1 = PyObject_GetIter(__pyx_v_frontier); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 832; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __pyx_t_3 = Py_TYPE(__pyx_t_1)->tp_iternext;
   }
@@ -42127,21 +44019,21 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_12advance(struct __pyx_
       #if CYTHON_COMPILING_IN_CPYTHON
       __pyx_t_4 = PyList_GET_ITEM(__pyx_t_1, __pyx_t_2); __Pyx_INCREF(__pyx_t_4); __pyx_t_2++;
       #else
-      __pyx_t_4 = PySequence_ITEM(__pyx_t_1, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 828; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+      __pyx_t_4 = PySequence_ITEM(__pyx_t_1, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 832; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
       #endif
     } else if (!__pyx_t_3 && PyTuple_CheckExact(__pyx_t_1)) {
       if (__pyx_t_2 >= PyTuple_GET_SIZE(__pyx_t_1)) break;
       #if CYTHON_COMPILING_IN_CPYTHON
       __pyx_t_4 = PyTuple_GET_ITEM(__pyx_t_1, __pyx_t_2); __Pyx_INCREF(__pyx_t_4); __pyx_t_2++;
       #else
-      __pyx_t_4 = PySequence_ITEM(__pyx_t_1, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 828; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+      __pyx_t_4 = PySequence_ITEM(__pyx_t_1, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 832; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
       #endif
     } else {
       __pyx_t_4 = __pyx_t_3(__pyx_t_1);
       if (unlikely(!__pyx_t_4)) {
         if (PyErr_Occurred()) {
           if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-          else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 828; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 832; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         }
         break;
       }
@@ -42157,7 +44049,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_12advance(struct __pyx_
       if (unlikely(size != 2)) {
         if (size > 2) __Pyx_RaiseTooManyValuesError(2);
         else if (size >= 0) __Pyx_RaiseNeedMoreValuesError(size);
-        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 828; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 832; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       }
       #if CYTHON_COMPILING_IN_CPYTHON
       if (likely(PyTuple_CheckExact(sequence))) {
@@ -42170,14 +44062,14 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_12advance(struct __pyx_
       __Pyx_INCREF(__pyx_t_5);
       __Pyx_INCREF(__pyx_t_6);
       #else
-      __pyx_t_5 = PySequence_ITEM(sequence, 0); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 828; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __pyx_t_6 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 828; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_5 = PySequence_ITEM(sequence, 0); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 832; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 832; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #endif
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     } else
     {
       Py_ssize_t index = -1;
-      __pyx_t_7 = PyObject_GetIter(__pyx_t_4); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 828; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_7 = PyObject_GetIter(__pyx_t_4); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 832; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_7);
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       __pyx_t_8 = Py_TYPE(__pyx_t_7)->tp_iternext;
@@ -42185,7 +44077,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_12advance(struct __pyx_
       __Pyx_GOTREF(__pyx_t_5);
       index = 1; __pyx_t_6 = __pyx_t_8(__pyx_t_7); if (unlikely(!__pyx_t_6)) goto __pyx_L5_unpacking_failed;
       __Pyx_GOTREF(__pyx_t_6);
-      if (__Pyx_IternextUnpackEndCheck(__pyx_t_8(__pyx_t_7), 2) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 828; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      if (__Pyx_IternextUnpackEndCheck(__pyx_t_8(__pyx_t_7), 2) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 832; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __pyx_t_8 = NULL;
       __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
       goto __pyx_L6_unpacking_done;
@@ -42193,7 +44085,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_12advance(struct __pyx_
       __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
       __pyx_t_8 = NULL;
       if (__Pyx_IterFinish() == 0) __Pyx_RaiseNeedMoreValuesError(index);
-      {__pyx_filename = __pyx_f[8]; __pyx_lineno = 828; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      {__pyx_filename = __pyx_f[8]; __pyx_lineno = 832; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __pyx_L6_unpacking_done:;
     }
     __Pyx_XDECREF(__pyx_v_toskip);
@@ -42209,7 +44101,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_12advance(struct __pyx_
       if (unlikely(size != 3)) {
         if (size > 3) __Pyx_RaiseTooManyValuesError(3);
         else if (size >= 0) __Pyx_RaiseNeedMoreValuesError(size);
-        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 828; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 832; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       }
       #if CYTHON_COMPILING_IN_CPYTHON
       if (likely(PyTuple_CheckExact(sequence))) {
@@ -42225,15 +44117,15 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_12advance(struct __pyx_
       __Pyx_INCREF(__pyx_t_9);
       __Pyx_INCREF(__pyx_t_10);
       #else
-      __pyx_t_7 = PySequence_ITEM(sequence, 0); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 828; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __pyx_t_9 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 828; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __pyx_t_10 = PySequence_ITEM(sequence, 2); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 828; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_7 = PySequence_ITEM(sequence, 0); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 832; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_9 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 832; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_10 = PySequence_ITEM(sequence, 2); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 832; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #endif
       __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
     } else
     {
       Py_ssize_t index = -1;
-      __pyx_t_11 = PyObject_GetIter(__pyx_t_6); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 828; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_11 = PyObject_GetIter(__pyx_t_6); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 832; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_11);
       __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
       __pyx_t_8 = Py_TYPE(__pyx_t_11)->tp_iternext;
@@ -42243,7 +44135,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_12advance(struct __pyx_
       __Pyx_GOTREF(__pyx_t_9);
       index = 2; __pyx_t_10 = __pyx_t_8(__pyx_t_11); if (unlikely(!__pyx_t_10)) goto __pyx_L7_unpacking_failed;
       __Pyx_GOTREF(__pyx_t_10);
-      if (__Pyx_IternextUnpackEndCheck(__pyx_t_8(__pyx_t_11), 3) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 828; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      if (__Pyx_IternextUnpackEndCheck(__pyx_t_8(__pyx_t_11), 3) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 832; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __pyx_t_8 = NULL;
       __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
       goto __pyx_L8_unpacking_done;
@@ -42251,7 +44143,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_12advance(struct __pyx_
       __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
       __pyx_t_8 = NULL;
       if (__Pyx_IterFinish() == 0) __Pyx_RaiseNeedMoreValuesError(index);
-      {__pyx_filename = __pyx_f[8]; __pyx_lineno = 828; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      {__pyx_filename = __pyx_f[8]; __pyx_lineno = 832; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __pyx_L8_unpacking_done:;
     }
     __Pyx_XDECREF(__pyx_v_i);
@@ -42264,46 +44156,46 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_12advance(struct __pyx_
     __pyx_v_pathlen = __pyx_t_10;
     __pyx_t_10 = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":829
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":833
  *         nf = []
  *         for (toskip, (i, alt, pathlen)) in frontier:
  *             spanlen = fwords[i][alt][2]             # <<<<<<<<<<<<<<
  *             if (toskip == 0):
  *                 res.append((i, alt, pathlen))
  */
-    __pyx_t_4 = PyObject_GetItem(__pyx_v_fwords, __pyx_v_i); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 829; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyObject_GetItem(__pyx_v_fwords, __pyx_v_i); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 833; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_6 = PyObject_GetItem(__pyx_t_4, __pyx_v_alt); if (!__pyx_t_6) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 829; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = PyObject_GetItem(__pyx_t_4, __pyx_v_alt); if (!__pyx_t_6) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 833; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_6, 2, sizeof(long), PyInt_FromLong); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 829; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_6, 2, sizeof(long), PyInt_FromLong); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 833; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
     __Pyx_XDECREF(__pyx_v_spanlen);
     __pyx_v_spanlen = __pyx_t_4;
     __pyx_t_4 = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":830
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":834
  *         for (toskip, (i, alt, pathlen)) in frontier:
  *             spanlen = fwords[i][alt][2]
  *             if (toskip == 0):             # <<<<<<<<<<<<<<
  *                 res.append((i, alt, pathlen))
  *             ni = i + spanlen
  */
-    __pyx_t_4 = PyObject_RichCompare(__pyx_v_toskip, __pyx_int_0, Py_EQ); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 830; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyObject_RichCompare(__pyx_v_toskip, __pyx_int_0, Py_EQ); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 834; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_12 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_12 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 830; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_12 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_12 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 834; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     if (__pyx_t_12) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":831
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":835
  *             spanlen = fwords[i][alt][2]
  *             if (toskip == 0):
  *                 res.append((i, alt, pathlen))             # <<<<<<<<<<<<<<
  *             ni = i + spanlen
  *             if (ni < len(fwords) and (pathlen + 1) < self.max_initial_size):
  */
-      __pyx_t_4 = PyTuple_New(3); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 831; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyTuple_New(3); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 835; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_INCREF(__pyx_v_i);
       PyTuple_SET_ITEM(__pyx_t_4, 0, __pyx_v_i);
@@ -42314,7 +44206,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_12advance(struct __pyx_
       __Pyx_INCREF(__pyx_v_pathlen);
       PyTuple_SET_ITEM(__pyx_t_4, 2, __pyx_v_pathlen);
       __Pyx_GIVEREF(__pyx_v_pathlen);
-      __pyx_t_6 = __Pyx_PyObject_Append(__pyx_v_res, ((PyObject *)__pyx_t_4)); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 831; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = __Pyx_PyObject_Append(__pyx_v_res, ((PyObject *)__pyx_t_4)); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 835; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_6);
       __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
       __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
@@ -42322,44 +44214,44 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_12advance(struct __pyx_
     }
     __pyx_L9:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":832
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":836
  *             if (toskip == 0):
  *                 res.append((i, alt, pathlen))
  *             ni = i + spanlen             # <<<<<<<<<<<<<<
  *             if (ni < len(fwords) and (pathlen + 1) < self.max_initial_size):
  *                 for na in range(len(fwords[ni])):
  */
-    __pyx_t_6 = PyNumber_Add(__pyx_v_i, __pyx_v_spanlen); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 832; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = PyNumber_Add(__pyx_v_i, __pyx_v_spanlen); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 836; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_XDECREF(__pyx_v_ni);
     __pyx_v_ni = __pyx_t_6;
     __pyx_t_6 = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":833
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":837
  *                 res.append((i, alt, pathlen))
  *             ni = i + spanlen
  *             if (ni < len(fwords) and (pathlen + 1) < self.max_initial_size):             # <<<<<<<<<<<<<<
  *                 for na in range(len(fwords[ni])):
  *                     nf.append((toskip - 1, (ni, na, pathlen + 1)))
  */
-    __pyx_t_13 = PyObject_Length(__pyx_v_fwords); if (unlikely(__pyx_t_13 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 833; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __pyx_t_6 = PyInt_FromSsize_t(__pyx_t_13); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 833; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_13 = PyObject_Length(__pyx_v_fwords); if (unlikely(__pyx_t_13 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 837; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = PyInt_FromSsize_t(__pyx_t_13); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 837; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
-    __pyx_t_4 = PyObject_RichCompare(__pyx_v_ni, __pyx_t_6, Py_LT); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 833; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyObject_RichCompare(__pyx_v_ni, __pyx_t_6, Py_LT); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 837; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-    __pyx_t_12 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_12 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 833; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_12 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_12 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 837; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     if (__pyx_t_12) {
-      __pyx_t_4 = PyNumber_Add(__pyx_v_pathlen, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 833; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyNumber_Add(__pyx_v_pathlen, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 837; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_6 = PyInt_FromLong(__pyx_v_self->max_initial_size); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 833; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = PyInt_FromLong(__pyx_v_self->max_initial_size); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 837; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_6);
-      __pyx_t_5 = PyObject_RichCompare(__pyx_t_4, __pyx_t_6, Py_LT); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 833; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_5 = PyObject_RichCompare(__pyx_t_4, __pyx_t_6, Py_LT); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 837; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_5);
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-      __pyx_t_14 = __Pyx_PyObject_IsTrue(__pyx_t_5); if (unlikely(__pyx_t_14 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 833; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_14 = __Pyx_PyObject_IsTrue(__pyx_t_5); if (unlikely(__pyx_t_14 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 837; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
       __pyx_t_15 = __pyx_t_14;
     } else {
@@ -42367,34 +44259,34 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_12advance(struct __pyx_
     }
     if (__pyx_t_15) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":834
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":838
  *             ni = i + spanlen
  *             if (ni < len(fwords) and (pathlen + 1) < self.max_initial_size):
  *                 for na in range(len(fwords[ni])):             # <<<<<<<<<<<<<<
  *                     nf.append((toskip - 1, (ni, na, pathlen + 1)))
  *         if (len(nf) > 0):
  */
-      __pyx_t_5 = PyObject_GetItem(__pyx_v_fwords, __pyx_v_ni); if (!__pyx_t_5) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 834; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_5 = PyObject_GetItem(__pyx_v_fwords, __pyx_v_ni); if (!__pyx_t_5) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 838; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_5);
-      __pyx_t_13 = PyObject_Length(__pyx_t_5); if (unlikely(__pyx_t_13 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 834; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_13 = PyObject_Length(__pyx_t_5); if (unlikely(__pyx_t_13 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 838; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
       for (__pyx_t_16 = 0; __pyx_t_16 < __pyx_t_13; __pyx_t_16+=1) {
         __pyx_v_na = __pyx_t_16;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":835
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":839
  *             if (ni < len(fwords) and (pathlen + 1) < self.max_initial_size):
  *                 for na in range(len(fwords[ni])):
  *                     nf.append((toskip - 1, (ni, na, pathlen + 1)))             # <<<<<<<<<<<<<<
  *         if (len(nf) > 0):
  *             return self.advance(nf, res, fwords)
  */
-        __pyx_t_5 = PyNumber_Subtract(__pyx_v_toskip, __pyx_int_1); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 835; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_5 = PyNumber_Subtract(__pyx_v_toskip, __pyx_int_1); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 839; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_5);
-        __pyx_t_6 = PyLong_FromUnsignedLong(__pyx_v_na); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 835; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_6 = PyLong_FromUnsignedLong(__pyx_v_na); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 839; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_6);
-        __pyx_t_4 = PyNumber_Add(__pyx_v_pathlen, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 835; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_4 = PyNumber_Add(__pyx_v_pathlen, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 839; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_4);
-        __pyx_t_10 = PyTuple_New(3); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 835; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_10 = PyTuple_New(3); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 839; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_10);
         __Pyx_INCREF(__pyx_v_ni);
         PyTuple_SET_ITEM(__pyx_t_10, 0, __pyx_v_ni);
@@ -42405,7 +44297,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_12advance(struct __pyx_
         __Pyx_GIVEREF(__pyx_t_4);
         __pyx_t_6 = 0;
         __pyx_t_4 = 0;
-        __pyx_t_4 = PyTuple_New(2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 835; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_4 = PyTuple_New(2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 839; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_4);
         PyTuple_SET_ITEM(__pyx_t_4, 0, __pyx_t_5);
         __Pyx_GIVEREF(__pyx_t_5);
@@ -42413,7 +44305,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_12advance(struct __pyx_
         __Pyx_GIVEREF(((PyObject *)__pyx_t_10));
         __pyx_t_5 = 0;
         __pyx_t_10 = 0;
-        __pyx_t_17 = PyList_Append(__pyx_v_nf, ((PyObject *)__pyx_t_4)); if (unlikely(__pyx_t_17 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 835; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_17 = PyList_Append(__pyx_v_nf, ((PyObject *)__pyx_t_4)); if (unlikely(__pyx_t_17 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 839; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
       }
       goto __pyx_L10;
@@ -42422,18 +44314,18 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_12advance(struct __pyx_
   }
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":836
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":840
  *                 for na in range(len(fwords[ni])):
  *                     nf.append((toskip - 1, (ni, na, pathlen + 1)))
  *         if (len(nf) > 0):             # <<<<<<<<<<<<<<
  *             return self.advance(nf, res, fwords)
  *         else:
  */
-  __pyx_t_2 = PyList_GET_SIZE(((PyObject *)__pyx_v_nf)); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 836; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyList_GET_SIZE(((PyObject *)__pyx_v_nf)); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 840; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_t_15 = (__pyx_t_2 > 0);
   if (__pyx_t_15) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":837
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":841
  *                     nf.append((toskip - 1, (ni, na, pathlen + 1)))
  *         if (len(nf) > 0):
  *             return self.advance(nf, res, fwords)             # <<<<<<<<<<<<<<
@@ -42441,9 +44333,9 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_12advance(struct __pyx_
  *             return res
  */
     __Pyx_XDECREF(__pyx_r);
-    __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_v_self), __pyx_n_s__advance); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 837; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_v_self), __pyx_n_s__advance); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 841; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_4 = PyTuple_New(3); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 837; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyTuple_New(3); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 841; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_INCREF(((PyObject *)__pyx_v_nf));
     PyTuple_SET_ITEM(__pyx_t_4, 0, ((PyObject *)__pyx_v_nf));
@@ -42454,7 +44346,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_12advance(struct __pyx_
     __Pyx_INCREF(__pyx_v_fwords);
     PyTuple_SET_ITEM(__pyx_t_4, 2, __pyx_v_fwords);
     __Pyx_GIVEREF(__pyx_v_fwords);
-    __pyx_t_10 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 837; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_10 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 841; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_10);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
@@ -42465,7 +44357,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_12advance(struct __pyx_
   }
   /*else*/ {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":839
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":843
  *             return self.advance(nf, res, fwords)
  *         else:
  *             return res             # <<<<<<<<<<<<<<
@@ -42543,36 +44435,36 @@ static PyObject *__pyx_pw_3_sa_23HieroCachingRuleFactory_15get_all_nodes_isteps_
         case  1:
         if (likely((values[1] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__i)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("get_all_nodes_isteps_away", 1, 7, 7, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 841; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("get_all_nodes_isteps_away", 1, 7, 7, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 845; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
         case  2:
         if (likely((values[2] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__spanlen)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("get_all_nodes_isteps_away", 1, 7, 7, 2); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 841; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("get_all_nodes_isteps_away", 1, 7, 7, 2); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 845; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
         case  3:
         if (likely((values[3] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__pathlen)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("get_all_nodes_isteps_away", 1, 7, 7, 3); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 841; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("get_all_nodes_isteps_away", 1, 7, 7, 3); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 845; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
         case  4:
         if (likely((values[4] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__fwords)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("get_all_nodes_isteps_away", 1, 7, 7, 4); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 841; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("get_all_nodes_isteps_away", 1, 7, 7, 4); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 845; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
         case  5:
         if (likely((values[5] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__next_states)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("get_all_nodes_isteps_away", 1, 7, 7, 5); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 841; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("get_all_nodes_isteps_away", 1, 7, 7, 5); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 845; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
         case  6:
         if (likely((values[6] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__reachable_buffer)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("get_all_nodes_isteps_away", 1, 7, 7, 6); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 841; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("get_all_nodes_isteps_away", 1, 7, 7, 6); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 845; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "get_all_nodes_isteps_away") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 841; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "get_all_nodes_isteps_away") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 845; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else if (PyTuple_GET_SIZE(__pyx_args) != 7) {
       goto __pyx_L5_argtuple_error;
@@ -42595,7 +44487,7 @@ static PyObject *__pyx_pw_3_sa_23HieroCachingRuleFactory_15get_all_nodes_isteps_
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("get_all_nodes_isteps_away", 1, 7, 7, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 841; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+  __Pyx_RaiseArgtupleInvalid("get_all_nodes_isteps_away", 1, 7, 7, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 845; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_AddTraceback("_sa.HieroCachingRuleFactory.get_all_nodes_isteps_away", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -42606,7 +44498,7 @@ static PyObject *__pyx_pw_3_sa_23HieroCachingRuleFactory_15get_all_nodes_isteps_
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":841
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":845
  *             return res
  * 
  *     def get_all_nodes_isteps_away(self, skip, i, spanlen, pathlen, fwords, next_states, reachable_buffer):             # <<<<<<<<<<<<<<
@@ -42644,42 +44536,42 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_14get_all_nodes_isteps_
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("get_all_nodes_isteps_away", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":843
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":847
  *     def get_all_nodes_isteps_away(self, skip, i, spanlen, pathlen, fwords, next_states, reachable_buffer):
  *         cdef unsigned alt_it
  *         frontier = []             # <<<<<<<<<<<<<<
  *         if (i+spanlen+skip >= len(next_states)):
  *             return frontier
  */
-  __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 843; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 847; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_v_frontier = __pyx_t_1;
   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":844
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":848
  *         cdef unsigned alt_it
  *         frontier = []
  *         if (i+spanlen+skip >= len(next_states)):             # <<<<<<<<<<<<<<
  *             return frontier
  *         key = tuple([i,spanlen])
  */
-  __pyx_t_1 = PyNumber_Add(__pyx_v_i, __pyx_v_spanlen); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 844; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyNumber_Add(__pyx_v_i, __pyx_v_spanlen); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 848; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = PyNumber_Add(__pyx_t_1, __pyx_v_skip); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 844; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyNumber_Add(__pyx_t_1, __pyx_v_skip); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 848; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_3 = PyObject_Length(__pyx_v_next_states); if (unlikely(__pyx_t_3 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 844; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_t_1 = PyInt_FromSsize_t(__pyx_t_3); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 844; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_Length(__pyx_v_next_states); if (unlikely(__pyx_t_3 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 848; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyInt_FromSsize_t(__pyx_t_3); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 848; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_4 = PyObject_RichCompare(__pyx_t_2, __pyx_t_1, Py_GE); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 844; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_4 = PyObject_RichCompare(__pyx_t_2, __pyx_t_1, Py_GE); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 848; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_4);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 844; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 848; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
   if (__pyx_t_5) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":845
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":849
  *         frontier = []
  *         if (i+spanlen+skip >= len(next_states)):
  *             return frontier             # <<<<<<<<<<<<<<
@@ -42694,14 +44586,14 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_14get_all_nodes_isteps_
   }
   __pyx_L3:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":846
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":850
  *         if (i+spanlen+skip >= len(next_states)):
  *             return frontier
  *         key = tuple([i,spanlen])             # <<<<<<<<<<<<<<
  *         reachable = []
  *         if (key in reachable_buffer):
  */
-  __pyx_t_4 = PyList_New(2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 846; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_4 = PyList_New(2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 850; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_4);
   __Pyx_INCREF(__pyx_v_i);
   PyList_SET_ITEM(__pyx_t_4, 0, __pyx_v_i);
@@ -42709,42 +44601,42 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_14get_all_nodes_isteps_
   __Pyx_INCREF(__pyx_v_spanlen);
   PyList_SET_ITEM(__pyx_t_4, 1, __pyx_v_spanlen);
   __Pyx_GIVEREF(__pyx_v_spanlen);
-  __pyx_t_1 = ((PyObject *)PyList_AsTuple(__pyx_t_4)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 846; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = ((PyObject *)PyList_AsTuple(__pyx_t_4)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 850; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_1));
   __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
   __pyx_v_key = __pyx_t_1;
   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":847
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":851
  *             return frontier
  *         key = tuple([i,spanlen])
  *         reachable = []             # <<<<<<<<<<<<<<
  *         if (key in reachable_buffer):
  *             reachable = reachable_buffer[key]
  */
-  __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 847; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 851; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_v_reachable = ((PyObject *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":848
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":852
  *         key = tuple([i,spanlen])
  *         reachable = []
  *         if (key in reachable_buffer):             # <<<<<<<<<<<<<<
  *             reachable = reachable_buffer[key]
  *         else:
  */
-  __pyx_t_5 = ((PySequence_Contains(__pyx_v_reachable_buffer, ((PyObject *)__pyx_v_key)))); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 848; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_5 = ((PySequence_Contains(__pyx_v_reachable_buffer, ((PyObject *)__pyx_v_key)))); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 852; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   if (__pyx_t_5) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":849
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":853
  *         reachable = []
  *         if (key in reachable_buffer):
  *             reachable = reachable_buffer[key]             # <<<<<<<<<<<<<<
  *         else:
  *             reachable = self.reachable(fwords, i, spanlen)
  */
-    __pyx_t_1 = PyObject_GetItem(__pyx_v_reachable_buffer, ((PyObject *)__pyx_v_key)); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 849; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyObject_GetItem(__pyx_v_reachable_buffer, ((PyObject *)__pyx_v_key)); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 853; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(__pyx_v_reachable);
     __pyx_v_reachable = __pyx_t_1;
@@ -42753,16 +44645,16 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_14get_all_nodes_isteps_
   }
   /*else*/ {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":851
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":855
  *             reachable = reachable_buffer[key]
  *         else:
  *             reachable = self.reachable(fwords, i, spanlen)             # <<<<<<<<<<<<<<
  *             reachable_buffer[key] = reachable
  *         for nextreachable in reachable:
  */
-    __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_v_self), __pyx_n_s__reachable); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 851; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_v_self), __pyx_n_s__reachable); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 855; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_4 = PyTuple_New(3); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 851; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyTuple_New(3); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 855; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_INCREF(__pyx_v_fwords);
     PyTuple_SET_ITEM(__pyx_t_4, 0, __pyx_v_fwords);
@@ -42773,7 +44665,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_14get_all_nodes_isteps_
     __Pyx_INCREF(__pyx_v_spanlen);
     PyTuple_SET_ITEM(__pyx_t_4, 2, __pyx_v_spanlen);
     __Pyx_GIVEREF(__pyx_v_spanlen);
-    __pyx_t_2 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 851; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 855; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
@@ -42781,18 +44673,18 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_14get_all_nodes_isteps_
     __pyx_v_reachable = __pyx_t_2;
     __pyx_t_2 = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":852
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":856
  *         else:
  *             reachable = self.reachable(fwords, i, spanlen)
  *             reachable_buffer[key] = reachable             # <<<<<<<<<<<<<<
  *         for nextreachable in reachable:
  *             for next_id in next_states[nextreachable]:
  */
-    if (PyObject_SetItem(__pyx_v_reachable_buffer, ((PyObject *)__pyx_v_key), __pyx_v_reachable) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 852; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (PyObject_SetItem(__pyx_v_reachable_buffer, ((PyObject *)__pyx_v_key), __pyx_v_reachable) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 856; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   }
   __pyx_L4:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":853
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":857
  *             reachable = self.reachable(fwords, i, spanlen)
  *             reachable_buffer[key] = reachable
  *         for nextreachable in reachable:             # <<<<<<<<<<<<<<
@@ -42803,7 +44695,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_14get_all_nodes_isteps_
     __pyx_t_2 = __pyx_v_reachable; __Pyx_INCREF(__pyx_t_2); __pyx_t_3 = 0;
     __pyx_t_6 = NULL;
   } else {
-    __pyx_t_3 = -1; __pyx_t_2 = PyObject_GetIter(__pyx_v_reachable); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 853; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = -1; __pyx_t_2 = PyObject_GetIter(__pyx_v_reachable); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 857; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __pyx_t_6 = Py_TYPE(__pyx_t_2)->tp_iternext;
   }
@@ -42813,21 +44705,21 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_14get_all_nodes_isteps_
       #if CYTHON_COMPILING_IN_CPYTHON
       __pyx_t_4 = PyList_GET_ITEM(__pyx_t_2, __pyx_t_3); __Pyx_INCREF(__pyx_t_4); __pyx_t_3++;
       #else
-      __pyx_t_4 = PySequence_ITEM(__pyx_t_2, __pyx_t_3); __pyx_t_3++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 853; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+      __pyx_t_4 = PySequence_ITEM(__pyx_t_2, __pyx_t_3); __pyx_t_3++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 857; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
       #endif
     } else if (!__pyx_t_6 && PyTuple_CheckExact(__pyx_t_2)) {
       if (__pyx_t_3 >= PyTuple_GET_SIZE(__pyx_t_2)) break;
       #if CYTHON_COMPILING_IN_CPYTHON
       __pyx_t_4 = PyTuple_GET_ITEM(__pyx_t_2, __pyx_t_3); __Pyx_INCREF(__pyx_t_4); __pyx_t_3++;
       #else
-      __pyx_t_4 = PySequence_ITEM(__pyx_t_2, __pyx_t_3); __pyx_t_3++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 853; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+      __pyx_t_4 = PySequence_ITEM(__pyx_t_2, __pyx_t_3); __pyx_t_3++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 857; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
       #endif
     } else {
       __pyx_t_4 = __pyx_t_6(__pyx_t_2);
       if (unlikely(!__pyx_t_4)) {
         if (PyErr_Occurred()) {
           if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-          else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 853; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 857; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         }
         break;
       }
@@ -42837,20 +44729,20 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_14get_all_nodes_isteps_
     __pyx_v_nextreachable = __pyx_t_4;
     __pyx_t_4 = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":854
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":858
  *             reachable_buffer[key] = reachable
  *         for nextreachable in reachable:
  *             for next_id in next_states[nextreachable]:             # <<<<<<<<<<<<<<
  *                 jump = self.shortest(fwords,i,next_id)
  *                 if jump < skip:
  */
-    __pyx_t_4 = PyObject_GetItem(__pyx_v_next_states, __pyx_v_nextreachable); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 854; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyObject_GetItem(__pyx_v_next_states, __pyx_v_nextreachable); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 858; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     if (PyList_CheckExact(__pyx_t_4) || PyTuple_CheckExact(__pyx_t_4)) {
       __pyx_t_1 = __pyx_t_4; __Pyx_INCREF(__pyx_t_1); __pyx_t_7 = 0;
       __pyx_t_8 = NULL;
     } else {
-      __pyx_t_7 = -1; __pyx_t_1 = PyObject_GetIter(__pyx_t_4); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 854; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_7 = -1; __pyx_t_1 = PyObject_GetIter(__pyx_t_4); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 858; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
       __pyx_t_8 = Py_TYPE(__pyx_t_1)->tp_iternext;
     }
@@ -42861,21 +44753,21 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_14get_all_nodes_isteps_
         #if CYTHON_COMPILING_IN_CPYTHON
         __pyx_t_4 = PyList_GET_ITEM(__pyx_t_1, __pyx_t_7); __Pyx_INCREF(__pyx_t_4); __pyx_t_7++;
         #else
-        __pyx_t_4 = PySequence_ITEM(__pyx_t_1, __pyx_t_7); __pyx_t_7++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 854; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+        __pyx_t_4 = PySequence_ITEM(__pyx_t_1, __pyx_t_7); __pyx_t_7++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 858; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
         #endif
       } else if (!__pyx_t_8 && PyTuple_CheckExact(__pyx_t_1)) {
         if (__pyx_t_7 >= PyTuple_GET_SIZE(__pyx_t_1)) break;
         #if CYTHON_COMPILING_IN_CPYTHON
         __pyx_t_4 = PyTuple_GET_ITEM(__pyx_t_1, __pyx_t_7); __Pyx_INCREF(__pyx_t_4); __pyx_t_7++;
         #else
-        __pyx_t_4 = PySequence_ITEM(__pyx_t_1, __pyx_t_7); __pyx_t_7++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 854; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+        __pyx_t_4 = PySequence_ITEM(__pyx_t_1, __pyx_t_7); __pyx_t_7++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 858; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
         #endif
       } else {
         __pyx_t_4 = __pyx_t_8(__pyx_t_1);
         if (unlikely(!__pyx_t_4)) {
           if (PyErr_Occurred()) {
             if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-            else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 854; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 858; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           }
           break;
         }
@@ -42885,16 +44777,16 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_14get_all_nodes_isteps_
       __pyx_v_next_id = __pyx_t_4;
       __pyx_t_4 = 0;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":855
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":859
  *         for nextreachable in reachable:
  *             for next_id in next_states[nextreachable]:
  *                 jump = self.shortest(fwords,i,next_id)             # <<<<<<<<<<<<<<
  *                 if jump < skip:
  *                     continue
  */
-      __pyx_t_4 = PyObject_GetAttr(((PyObject *)__pyx_v_self), __pyx_n_s__shortest); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 855; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyObject_GetAttr(((PyObject *)__pyx_v_self), __pyx_n_s__shortest); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 859; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_9 = PyTuple_New(3); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 855; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_9 = PyTuple_New(3); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 859; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_9);
       __Pyx_INCREF(__pyx_v_fwords);
       PyTuple_SET_ITEM(__pyx_t_9, 0, __pyx_v_fwords);
@@ -42905,7 +44797,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_14get_all_nodes_isteps_
       __Pyx_INCREF(__pyx_v_next_id);
       PyTuple_SET_ITEM(__pyx_t_9, 2, __pyx_v_next_id);
       __Pyx_GIVEREF(__pyx_v_next_id);
-      __pyx_t_10 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_9), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 855; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_10 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_9), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 859; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_10);
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       __Pyx_DECREF(((PyObject *)__pyx_t_9)); __pyx_t_9 = 0;
@@ -42913,20 +44805,20 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_14get_all_nodes_isteps_
       __pyx_v_jump = __pyx_t_10;
       __pyx_t_10 = 0;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":856
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":860
  *             for next_id in next_states[nextreachable]:
  *                 jump = self.shortest(fwords,i,next_id)
  *                 if jump < skip:             # <<<<<<<<<<<<<<
  *                     continue
  *                 if pathlen+jump <= self.max_initial_size:
  */
-      __pyx_t_10 = PyObject_RichCompare(__pyx_v_jump, __pyx_v_skip, Py_LT); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 856; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_10 = PyObject_RichCompare(__pyx_v_jump, __pyx_v_skip, Py_LT); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 860; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_10);
-      __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_10); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 856; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_10); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 860; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
       if (__pyx_t_5) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":857
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":861
  *                 jump = self.shortest(fwords,i,next_id)
  *                 if jump < skip:
  *                     continue             # <<<<<<<<<<<<<<
@@ -42938,51 +44830,51 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_14get_all_nodes_isteps_
       }
       __pyx_L9:;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":858
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":862
  *                 if jump < skip:
  *                     continue
  *                 if pathlen+jump <= self.max_initial_size:             # <<<<<<<<<<<<<<
  *                     for alt_id in range(len(fwords[next_id])):
  *                         if (fwords[next_id][alt_id][0] != EPSILON):
  */
-      __pyx_t_10 = PyNumber_Add(__pyx_v_pathlen, __pyx_v_jump); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 858; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_10 = PyNumber_Add(__pyx_v_pathlen, __pyx_v_jump); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 862; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_10);
-      __pyx_t_9 = PyInt_FromLong(__pyx_v_self->max_initial_size); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 858; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_9 = PyInt_FromLong(__pyx_v_self->max_initial_size); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 862; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_9);
-      __pyx_t_4 = PyObject_RichCompare(__pyx_t_10, __pyx_t_9, Py_LE); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 858; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyObject_RichCompare(__pyx_t_10, __pyx_t_9, Py_LE); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 862; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
       __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
-      __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 858; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 862; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       if (__pyx_t_5) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":859
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":863
  *                     continue
  *                 if pathlen+jump <= self.max_initial_size:
  *                     for alt_id in range(len(fwords[next_id])):             # <<<<<<<<<<<<<<
  *                         if (fwords[next_id][alt_id][0] != EPSILON):
  *                             newel = (next_id,alt_id,pathlen+jump)
  */
-        __pyx_t_4 = PyObject_GetItem(__pyx_v_fwords, __pyx_v_next_id); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 859; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_4 = PyObject_GetItem(__pyx_v_fwords, __pyx_v_next_id); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 863; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_4);
-        __pyx_t_11 = PyObject_Length(__pyx_t_4); if (unlikely(__pyx_t_11 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 859; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_11 = PyObject_Length(__pyx_t_4); if (unlikely(__pyx_t_11 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 863; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-        __pyx_t_4 = PyInt_FromSsize_t(__pyx_t_11); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 859; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_4 = PyInt_FromSsize_t(__pyx_t_11); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 863; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_4);
-        __pyx_t_9 = PyTuple_New(1); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 859; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_9 = PyTuple_New(1); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 863; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_9);
         PyTuple_SET_ITEM(__pyx_t_9, 0, __pyx_t_4);
         __Pyx_GIVEREF(__pyx_t_4);
         __pyx_t_4 = 0;
-        __pyx_t_4 = PyObject_Call(__pyx_builtin_range, ((PyObject *)__pyx_t_9), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 859; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_4 = PyObject_Call(__pyx_builtin_range, ((PyObject *)__pyx_t_9), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 863; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_4);
         __Pyx_DECREF(((PyObject *)__pyx_t_9)); __pyx_t_9 = 0;
         if (PyList_CheckExact(__pyx_t_4) || PyTuple_CheckExact(__pyx_t_4)) {
           __pyx_t_9 = __pyx_t_4; __Pyx_INCREF(__pyx_t_9); __pyx_t_11 = 0;
           __pyx_t_12 = NULL;
         } else {
-          __pyx_t_11 = -1; __pyx_t_9 = PyObject_GetIter(__pyx_t_4); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 859; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_11 = -1; __pyx_t_9 = PyObject_GetIter(__pyx_t_4); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 863; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_9);
           __pyx_t_12 = Py_TYPE(__pyx_t_9)->tp_iternext;
         }
@@ -42993,21 +44885,21 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_14get_all_nodes_isteps_
             #if CYTHON_COMPILING_IN_CPYTHON
             __pyx_t_4 = PyList_GET_ITEM(__pyx_t_9, __pyx_t_11); __Pyx_INCREF(__pyx_t_4); __pyx_t_11++;
             #else
-            __pyx_t_4 = PySequence_ITEM(__pyx_t_9, __pyx_t_11); __pyx_t_11++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 859; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+            __pyx_t_4 = PySequence_ITEM(__pyx_t_9, __pyx_t_11); __pyx_t_11++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 863; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
             #endif
           } else if (!__pyx_t_12 && PyTuple_CheckExact(__pyx_t_9)) {
             if (__pyx_t_11 >= PyTuple_GET_SIZE(__pyx_t_9)) break;
             #if CYTHON_COMPILING_IN_CPYTHON
             __pyx_t_4 = PyTuple_GET_ITEM(__pyx_t_9, __pyx_t_11); __Pyx_INCREF(__pyx_t_4); __pyx_t_11++;
             #else
-            __pyx_t_4 = PySequence_ITEM(__pyx_t_9, __pyx_t_11); __pyx_t_11++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 859; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+            __pyx_t_4 = PySequence_ITEM(__pyx_t_9, __pyx_t_11); __pyx_t_11++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 863; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
             #endif
           } else {
             __pyx_t_4 = __pyx_t_12(__pyx_t_9);
             if (unlikely(!__pyx_t_4)) {
               if (PyErr_Occurred()) {
                 if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-                else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 859; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 863; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               }
               break;
             }
@@ -43017,41 +44909,41 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_14get_all_nodes_isteps_
           __pyx_v_alt_id = __pyx_t_4;
           __pyx_t_4 = 0;
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":860
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":864
  *                 if pathlen+jump <= self.max_initial_size:
  *                     for alt_id in range(len(fwords[next_id])):
  *                         if (fwords[next_id][alt_id][0] != EPSILON):             # <<<<<<<<<<<<<<
  *                             newel = (next_id,alt_id,pathlen+jump)
  *                             if newel not in frontier:
  */
-          __pyx_t_4 = PyObject_GetItem(__pyx_v_fwords, __pyx_v_next_id); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 860; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_4 = PyObject_GetItem(__pyx_v_fwords, __pyx_v_next_id); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 864; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_4);
-          __pyx_t_10 = PyObject_GetItem(__pyx_t_4, __pyx_v_alt_id); if (!__pyx_t_10) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 860; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_10 = PyObject_GetItem(__pyx_t_4, __pyx_v_alt_id); if (!__pyx_t_10) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 864; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_10);
           __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-          __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_10, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 860; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_10, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 864; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_4);
           __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-          __pyx_t_10 = PyInt_FromLong(__pyx_v_3_sa_EPSILON); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 860; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_10 = PyInt_FromLong(__pyx_v_3_sa_EPSILON); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 864; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_10);
-          __pyx_t_13 = PyObject_RichCompare(__pyx_t_4, __pyx_t_10, Py_NE); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 860; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_13 = PyObject_RichCompare(__pyx_t_4, __pyx_t_10, Py_NE); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 864; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_13);
           __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
           __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-          __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_13); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 860; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_13); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 864; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_DECREF(__pyx_t_13); __pyx_t_13 = 0;
           if (__pyx_t_5) {
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":861
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":865
  *                     for alt_id in range(len(fwords[next_id])):
  *                         if (fwords[next_id][alt_id][0] != EPSILON):
  *                             newel = (next_id,alt_id,pathlen+jump)             # <<<<<<<<<<<<<<
  *                             if newel not in frontier:
  *                                 frontier.append((next_id,alt_id,pathlen+jump))
  */
-            __pyx_t_13 = PyNumber_Add(__pyx_v_pathlen, __pyx_v_jump); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 861; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_13 = PyNumber_Add(__pyx_v_pathlen, __pyx_v_jump); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 865; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_13);
-            __pyx_t_10 = PyTuple_New(3); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 861; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_10 = PyTuple_New(3); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 865; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_10);
             __Pyx_INCREF(__pyx_v_next_id);
             PyTuple_SET_ITEM(__pyx_t_10, 0, __pyx_v_next_id);
@@ -43066,26 +44958,26 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_14get_all_nodes_isteps_
             __pyx_v_newel = __pyx_t_10;
             __pyx_t_10 = 0;
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":862
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":866
  *                         if (fwords[next_id][alt_id][0] != EPSILON):
  *                             newel = (next_id,alt_id,pathlen+jump)
  *                             if newel not in frontier:             # <<<<<<<<<<<<<<
  *                                 frontier.append((next_id,alt_id,pathlen+jump))
  *         return frontier
  */
-            __pyx_t_5 = (__Pyx_NegateNonNeg(PySequence_Contains(((PyObject *)__pyx_v_frontier), ((PyObject *)__pyx_v_newel)))); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 862; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_5 = (__Pyx_NegateNonNeg(PySequence_Contains(((PyObject *)__pyx_v_frontier), ((PyObject *)__pyx_v_newel)))); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 866; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             if (__pyx_t_5) {
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":863
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":867
  *                             newel = (next_id,alt_id,pathlen+jump)
  *                             if newel not in frontier:
  *                                 frontier.append((next_id,alt_id,pathlen+jump))             # <<<<<<<<<<<<<<
  *         return frontier
  * 
  */
-              __pyx_t_10 = PyNumber_Add(__pyx_v_pathlen, __pyx_v_jump); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 863; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_10 = PyNumber_Add(__pyx_v_pathlen, __pyx_v_jump); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 867; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_10);
-              __pyx_t_13 = PyTuple_New(3); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 863; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_13 = PyTuple_New(3); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 867; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_13);
               __Pyx_INCREF(__pyx_v_next_id);
               PyTuple_SET_ITEM(__pyx_t_13, 0, __pyx_v_next_id);
@@ -43096,7 +44988,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_14get_all_nodes_isteps_
               PyTuple_SET_ITEM(__pyx_t_13, 2, __pyx_t_10);
               __Pyx_GIVEREF(__pyx_t_10);
               __pyx_t_10 = 0;
-              __pyx_t_14 = PyList_Append(__pyx_v_frontier, ((PyObject *)__pyx_t_13)); if (unlikely(__pyx_t_14 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 863; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_14 = PyList_Append(__pyx_v_frontier, ((PyObject *)__pyx_t_13)); if (unlikely(__pyx_t_14 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 867; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_DECREF(((PyObject *)__pyx_t_13)); __pyx_t_13 = 0;
               goto __pyx_L14;
             }
@@ -43115,7 +45007,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_14get_all_nodes_isteps_
   }
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":864
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":868
  *                             if newel not in frontier:
  *                                 frontier.append((next_id,alt_id,pathlen+jump))
  *         return frontier             # <<<<<<<<<<<<<<
@@ -43182,16 +45074,16 @@ static PyObject *__pyx_pw_3_sa_23HieroCachingRuleFactory_17reachable(PyObject *_
         case  1:
         if (likely((values[1] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__ifrom)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("reachable", 1, 3, 3, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 866; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("reachable", 1, 3, 3, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 870; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
         case  2:
         if (likely((values[2] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__dist)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("reachable", 1, 3, 3, 2); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 866; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("reachable", 1, 3, 3, 2); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 870; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "reachable") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 866; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "reachable") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 870; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else if (PyTuple_GET_SIZE(__pyx_args) != 3) {
       goto __pyx_L5_argtuple_error;
@@ -43206,7 +45098,7 @@ static PyObject *__pyx_pw_3_sa_23HieroCachingRuleFactory_17reachable(PyObject *_
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("reachable", 1, 3, 3, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 866; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+  __Pyx_RaiseArgtupleInvalid("reachable", 1, 3, 3, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 870; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_AddTraceback("_sa.HieroCachingRuleFactory.reachable", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -43217,7 +45109,7 @@ static PyObject *__pyx_pw_3_sa_23HieroCachingRuleFactory_17reachable(PyObject *_
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":866
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":870
  *         return frontier
  * 
  *     def reachable(self, fwords, ifrom, dist):             # <<<<<<<<<<<<<<
@@ -43247,36 +45139,36 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_16reachable(struct __py
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("reachable", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":867
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":871
  * 
  *     def reachable(self, fwords, ifrom, dist):
  *         ret = []             # <<<<<<<<<<<<<<
  *         if (ifrom >= len(fwords)):
  *             return ret
  */
-  __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 867; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 871; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_v_ret = __pyx_t_1;
   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":868
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":872
  *     def reachable(self, fwords, ifrom, dist):
  *         ret = []
  *         if (ifrom >= len(fwords)):             # <<<<<<<<<<<<<<
  *             return ret
  *         for alt_id in range(len(fwords[ifrom])):
  */
-  __pyx_t_2 = PyObject_Length(__pyx_v_fwords); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 868; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_t_1 = PyInt_FromSsize_t(__pyx_t_2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 868; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyObject_Length(__pyx_v_fwords); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 872; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyInt_FromSsize_t(__pyx_t_2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 872; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_3 = PyObject_RichCompare(__pyx_v_ifrom, __pyx_t_1, Py_GE); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 868; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_RichCompare(__pyx_v_ifrom, __pyx_t_1, Py_GE); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 872; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 868; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 872; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   if (__pyx_t_4) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":869
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":873
  *         ret = []
  *         if (ifrom >= len(fwords)):
  *             return ret             # <<<<<<<<<<<<<<
@@ -43291,32 +45183,32 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_16reachable(struct __py
   }
   __pyx_L3:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":870
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":874
  *         if (ifrom >= len(fwords)):
  *             return ret
  *         for alt_id in range(len(fwords[ifrom])):             # <<<<<<<<<<<<<<
  *             if (fwords[ifrom][alt_id][0] == EPSILON):
  *                 ret.extend(self.reachable(fwords,ifrom+fwords[ifrom][alt_id][2],dist))
  */
-  __pyx_t_3 = PyObject_GetItem(__pyx_v_fwords, __pyx_v_ifrom); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 870; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_GetItem(__pyx_v_fwords, __pyx_v_ifrom); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 874; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
-  __pyx_t_2 = PyObject_Length(__pyx_t_3); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 870; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyObject_Length(__pyx_t_3); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 874; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  __pyx_t_3 = PyInt_FromSsize_t(__pyx_t_2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 870; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyInt_FromSsize_t(__pyx_t_2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 874; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
-  __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 870; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 874; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_t_3);
   __Pyx_GIVEREF(__pyx_t_3);
   __pyx_t_3 = 0;
-  __pyx_t_3 = PyObject_Call(__pyx_builtin_range, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 870; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_Call(__pyx_builtin_range, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 874; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
   if (PyList_CheckExact(__pyx_t_3) || PyTuple_CheckExact(__pyx_t_3)) {
     __pyx_t_1 = __pyx_t_3; __Pyx_INCREF(__pyx_t_1); __pyx_t_2 = 0;
     __pyx_t_5 = NULL;
   } else {
-    __pyx_t_2 = -1; __pyx_t_1 = PyObject_GetIter(__pyx_t_3); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 870; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = -1; __pyx_t_1 = PyObject_GetIter(__pyx_t_3); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 874; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __pyx_t_5 = Py_TYPE(__pyx_t_1)->tp_iternext;
   }
@@ -43327,21 +45219,21 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_16reachable(struct __py
       #if CYTHON_COMPILING_IN_CPYTHON
       __pyx_t_3 = PyList_GET_ITEM(__pyx_t_1, __pyx_t_2); __Pyx_INCREF(__pyx_t_3); __pyx_t_2++;
       #else
-      __pyx_t_3 = PySequence_ITEM(__pyx_t_1, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 870; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+      __pyx_t_3 = PySequence_ITEM(__pyx_t_1, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 874; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
       #endif
     } else if (!__pyx_t_5 && PyTuple_CheckExact(__pyx_t_1)) {
       if (__pyx_t_2 >= PyTuple_GET_SIZE(__pyx_t_1)) break;
       #if CYTHON_COMPILING_IN_CPYTHON
       __pyx_t_3 = PyTuple_GET_ITEM(__pyx_t_1, __pyx_t_2); __Pyx_INCREF(__pyx_t_3); __pyx_t_2++;
       #else
-      __pyx_t_3 = PySequence_ITEM(__pyx_t_1, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 870; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+      __pyx_t_3 = PySequence_ITEM(__pyx_t_1, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 874; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
       #endif
     } else {
       __pyx_t_3 = __pyx_t_5(__pyx_t_1);
       if (unlikely(!__pyx_t_3)) {
         if (PyErr_Occurred()) {
           if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-          else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 870; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 874; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         }
         break;
       }
@@ -43351,54 +45243,54 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_16reachable(struct __py
     __pyx_v_alt_id = __pyx_t_3;
     __pyx_t_3 = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":871
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":875
  *             return ret
  *         for alt_id in range(len(fwords[ifrom])):
  *             if (fwords[ifrom][alt_id][0] == EPSILON):             # <<<<<<<<<<<<<<
  *                 ret.extend(self.reachable(fwords,ifrom+fwords[ifrom][alt_id][2],dist))
  *             else:
  */
-    __pyx_t_3 = PyObject_GetItem(__pyx_v_fwords, __pyx_v_ifrom); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 871; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_GetItem(__pyx_v_fwords, __pyx_v_ifrom); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 875; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_6 = PyObject_GetItem(__pyx_t_3, __pyx_v_alt_id); if (!__pyx_t_6) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 871; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = PyObject_GetItem(__pyx_t_3, __pyx_v_alt_id); if (!__pyx_t_6) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 875; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __pyx_t_3 = __Pyx_GetItemInt(__pyx_t_6, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 871; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = __Pyx_GetItemInt(__pyx_t_6, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 875; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-    __pyx_t_6 = PyInt_FromLong(__pyx_v_3_sa_EPSILON); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 871; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = PyInt_FromLong(__pyx_v_3_sa_EPSILON); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 875; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
-    __pyx_t_7 = PyObject_RichCompare(__pyx_t_3, __pyx_t_6, Py_EQ); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 871; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_7 = PyObject_RichCompare(__pyx_t_3, __pyx_t_6, Py_EQ); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 875; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_7);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-    __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_7); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 871; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_7); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 875; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
     if (__pyx_t_4) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":872
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":876
  *         for alt_id in range(len(fwords[ifrom])):
  *             if (fwords[ifrom][alt_id][0] == EPSILON):
  *                 ret.extend(self.reachable(fwords,ifrom+fwords[ifrom][alt_id][2],dist))             # <<<<<<<<<<<<<<
  *             else:
  *                 if (dist==0):
  */
-      __pyx_t_7 = PyObject_GetAttr(((PyObject *)__pyx_v_ret), __pyx_n_s__extend); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 872; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_7 = PyObject_GetAttr(((PyObject *)__pyx_v_ret), __pyx_n_s__extend); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 876; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_7);
-      __pyx_t_6 = PyObject_GetAttr(((PyObject *)__pyx_v_self), __pyx_n_s__reachable); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 872; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = PyObject_GetAttr(((PyObject *)__pyx_v_self), __pyx_n_s__reachable); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 876; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_6);
-      __pyx_t_3 = PyObject_GetItem(__pyx_v_fwords, __pyx_v_ifrom); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 872; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = PyObject_GetItem(__pyx_v_fwords, __pyx_v_ifrom); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 876; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
-      __pyx_t_8 = PyObject_GetItem(__pyx_t_3, __pyx_v_alt_id); if (!__pyx_t_8) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 872; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = PyObject_GetItem(__pyx_t_3, __pyx_v_alt_id); if (!__pyx_t_8) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 876; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_8);
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-      __pyx_t_3 = __Pyx_GetItemInt(__pyx_t_8, 2, sizeof(long), PyInt_FromLong); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 872; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = __Pyx_GetItemInt(__pyx_t_8, 2, sizeof(long), PyInt_FromLong); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 876; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-      __pyx_t_8 = PyNumber_Add(__pyx_v_ifrom, __pyx_t_3); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 872; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = PyNumber_Add(__pyx_v_ifrom, __pyx_t_3); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 876; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_8);
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-      __pyx_t_3 = PyTuple_New(3); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 872; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = PyTuple_New(3); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 876; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_INCREF(__pyx_v_fwords);
       PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_v_fwords);
@@ -43409,16 +45301,16 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_16reachable(struct __py
       PyTuple_SET_ITEM(__pyx_t_3, 2, __pyx_v_dist);
       __Pyx_GIVEREF(__pyx_v_dist);
       __pyx_t_8 = 0;
-      __pyx_t_8 = PyObject_Call(__pyx_t_6, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 872; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = PyObject_Call(__pyx_t_6, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 876; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_8);
       __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
       __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
-      __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 872; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 876; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
       PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_8);
       __Pyx_GIVEREF(__pyx_t_8);
       __pyx_t_8 = 0;
-      __pyx_t_8 = PyObject_Call(__pyx_t_7, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 872; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = PyObject_Call(__pyx_t_7, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 876; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_8);
       __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
       __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
@@ -43427,37 +45319,37 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_16reachable(struct __py
     }
     /*else*/ {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":874
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":878
  *                 ret.extend(self.reachable(fwords,ifrom+fwords[ifrom][alt_id][2],dist))
  *             else:
  *                 if (dist==0):             # <<<<<<<<<<<<<<
  *                     if (ifrom not in ret):
  *                         ret.append(ifrom)
  */
-      __pyx_t_8 = PyObject_RichCompare(__pyx_v_dist, __pyx_int_0, Py_EQ); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 874; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = PyObject_RichCompare(__pyx_v_dist, __pyx_int_0, Py_EQ); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 878; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_8);
-      __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_8); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 874; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_8); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 878; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
       if (__pyx_t_4) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":875
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":879
  *             else:
  *                 if (dist==0):
  *                     if (ifrom not in ret):             # <<<<<<<<<<<<<<
  *                         ret.append(ifrom)
  *                 else:
  */
-        __pyx_t_4 = (__Pyx_NegateNonNeg(PySequence_Contains(((PyObject *)__pyx_v_ret), __pyx_v_ifrom))); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 875; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_4 = (__Pyx_NegateNonNeg(PySequence_Contains(((PyObject *)__pyx_v_ret), __pyx_v_ifrom))); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 879; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         if (__pyx_t_4) {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":876
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":880
  *                 if (dist==0):
  *                     if (ifrom not in ret):
  *                         ret.append(ifrom)             # <<<<<<<<<<<<<<
  *                 else:
  *                     for ifromchild in self.reachable(fwords,ifrom+fwords[ifrom][alt_id][2],dist-1):
  */
-          __pyx_t_9 = PyList_Append(__pyx_v_ret, __pyx_v_ifrom); if (unlikely(__pyx_t_9 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 876; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_9 = PyList_Append(__pyx_v_ret, __pyx_v_ifrom); if (unlikely(__pyx_t_9 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 880; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           goto __pyx_L8;
         }
         __pyx_L8:;
@@ -43465,29 +45357,29 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_16reachable(struct __py
       }
       /*else*/ {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":878
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":882
  *                         ret.append(ifrom)
  *                 else:
  *                     for ifromchild in self.reachable(fwords,ifrom+fwords[ifrom][alt_id][2],dist-1):             # <<<<<<<<<<<<<<
  *                         if (ifromchild not in ret):
  *                             ret.append(ifromchild)
  */
-        __pyx_t_8 = PyObject_GetAttr(((PyObject *)__pyx_v_self), __pyx_n_s__reachable); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 878; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_8 = PyObject_GetAttr(((PyObject *)__pyx_v_self), __pyx_n_s__reachable); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 882; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_8);
-        __pyx_t_3 = PyObject_GetItem(__pyx_v_fwords, __pyx_v_ifrom); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 878; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_3 = PyObject_GetItem(__pyx_v_fwords, __pyx_v_ifrom); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 882; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_3);
-        __pyx_t_7 = PyObject_GetItem(__pyx_t_3, __pyx_v_alt_id); if (!__pyx_t_7) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 878; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_7 = PyObject_GetItem(__pyx_t_3, __pyx_v_alt_id); if (!__pyx_t_7) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 882; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_7);
         __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-        __pyx_t_3 = __Pyx_GetItemInt(__pyx_t_7, 2, sizeof(long), PyInt_FromLong); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 878; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_3 = __Pyx_GetItemInt(__pyx_t_7, 2, sizeof(long), PyInt_FromLong); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 882; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_3);
         __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-        __pyx_t_7 = PyNumber_Add(__pyx_v_ifrom, __pyx_t_3); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 878; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_7 = PyNumber_Add(__pyx_v_ifrom, __pyx_t_3); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 882; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_7);
         __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-        __pyx_t_3 = PyNumber_Subtract(__pyx_v_dist, __pyx_int_1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 878; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_3 = PyNumber_Subtract(__pyx_v_dist, __pyx_int_1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 882; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_3);
-        __pyx_t_6 = PyTuple_New(3); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 878; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_6 = PyTuple_New(3); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 882; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_6);
         __Pyx_INCREF(__pyx_v_fwords);
         PyTuple_SET_ITEM(__pyx_t_6, 0, __pyx_v_fwords);
@@ -43498,7 +45390,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_16reachable(struct __py
         __Pyx_GIVEREF(__pyx_t_3);
         __pyx_t_7 = 0;
         __pyx_t_3 = 0;
-        __pyx_t_3 = PyObject_Call(__pyx_t_8, ((PyObject *)__pyx_t_6), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 878; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_3 = PyObject_Call(__pyx_t_8, ((PyObject *)__pyx_t_6), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 882; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_3);
         __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
         __Pyx_DECREF(((PyObject *)__pyx_t_6)); __pyx_t_6 = 0;
@@ -43506,7 +45398,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_16reachable(struct __py
           __pyx_t_6 = __pyx_t_3; __Pyx_INCREF(__pyx_t_6); __pyx_t_10 = 0;
           __pyx_t_11 = NULL;
         } else {
-          __pyx_t_10 = -1; __pyx_t_6 = PyObject_GetIter(__pyx_t_3); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 878; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_10 = -1; __pyx_t_6 = PyObject_GetIter(__pyx_t_3); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 882; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_6);
           __pyx_t_11 = Py_TYPE(__pyx_t_6)->tp_iternext;
         }
@@ -43517,21 +45409,21 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_16reachable(struct __py
             #if CYTHON_COMPILING_IN_CPYTHON
             __pyx_t_3 = PyList_GET_ITEM(__pyx_t_6, __pyx_t_10); __Pyx_INCREF(__pyx_t_3); __pyx_t_10++;
             #else
-            __pyx_t_3 = PySequence_ITEM(__pyx_t_6, __pyx_t_10); __pyx_t_10++; if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 878; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+            __pyx_t_3 = PySequence_ITEM(__pyx_t_6, __pyx_t_10); __pyx_t_10++; if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 882; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
             #endif
           } else if (!__pyx_t_11 && PyTuple_CheckExact(__pyx_t_6)) {
             if (__pyx_t_10 >= PyTuple_GET_SIZE(__pyx_t_6)) break;
             #if CYTHON_COMPILING_IN_CPYTHON
             __pyx_t_3 = PyTuple_GET_ITEM(__pyx_t_6, __pyx_t_10); __Pyx_INCREF(__pyx_t_3); __pyx_t_10++;
             #else
-            __pyx_t_3 = PySequence_ITEM(__pyx_t_6, __pyx_t_10); __pyx_t_10++; if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 878; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+            __pyx_t_3 = PySequence_ITEM(__pyx_t_6, __pyx_t_10); __pyx_t_10++; if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 882; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
             #endif
           } else {
             __pyx_t_3 = __pyx_t_11(__pyx_t_6);
             if (unlikely(!__pyx_t_3)) {
               if (PyErr_Occurred()) {
                 if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-                else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 878; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 882; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               }
               break;
             }
@@ -43541,24 +45433,24 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_16reachable(struct __py
           __pyx_v_ifromchild = __pyx_t_3;
           __pyx_t_3 = 0;
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":879
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":883
  *                 else:
  *                     for ifromchild in self.reachable(fwords,ifrom+fwords[ifrom][alt_id][2],dist-1):
  *                         if (ifromchild not in ret):             # <<<<<<<<<<<<<<
  *                             ret.append(ifromchild)
  * 
  */
-          __pyx_t_4 = (__Pyx_NegateNonNeg(PySequence_Contains(((PyObject *)__pyx_v_ret), __pyx_v_ifromchild))); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 879; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_4 = (__Pyx_NegateNonNeg(PySequence_Contains(((PyObject *)__pyx_v_ret), __pyx_v_ifromchild))); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 883; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           if (__pyx_t_4) {
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":880
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":884
  *                     for ifromchild in self.reachable(fwords,ifrom+fwords[ifrom][alt_id][2],dist-1):
  *                         if (ifromchild not in ret):
  *                             ret.append(ifromchild)             # <<<<<<<<<<<<<<
  * 
  *         return ret
  */
-            __pyx_t_9 = PyList_Append(__pyx_v_ret, __pyx_v_ifromchild); if (unlikely(__pyx_t_9 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 880; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_9 = PyList_Append(__pyx_v_ret, __pyx_v_ifromchild); if (unlikely(__pyx_t_9 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 884; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             goto __pyx_L11;
           }
           __pyx_L11:;
@@ -43571,7 +45463,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_16reachable(struct __py
   }
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":882
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":886
  *                             ret.append(ifromchild)
  * 
  *         return ret             # <<<<<<<<<<<<<<
@@ -43632,16 +45524,16 @@ static PyObject *__pyx_pw_3_sa_23HieroCachingRuleFactory_19shortest(PyObject *__
         case  1:
         if (likely((values[1] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__ifrom)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("shortest", 1, 3, 3, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 884; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("shortest", 1, 3, 3, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 888; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
         case  2:
         if (likely((values[2] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__ito)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("shortest", 1, 3, 3, 2); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 884; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("shortest", 1, 3, 3, 2); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 888; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "shortest") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 884; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "shortest") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 888; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else if (PyTuple_GET_SIZE(__pyx_args) != 3) {
       goto __pyx_L5_argtuple_error;
@@ -43656,7 +45548,7 @@ static PyObject *__pyx_pw_3_sa_23HieroCachingRuleFactory_19shortest(PyObject *__
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("shortest", 1, 3, 3, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 884; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+  __Pyx_RaiseArgtupleInvalid("shortest", 1, 3, 3, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 888; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_AddTraceback("_sa.HieroCachingRuleFactory.shortest", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -43667,7 +45559,7 @@ static PyObject *__pyx_pw_3_sa_23HieroCachingRuleFactory_19shortest(PyObject *__
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":884
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":888
  *         return ret
  * 
  *     def shortest(self, fwords, ifrom, ito):             # <<<<<<<<<<<<<<
@@ -43692,7 +45584,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_18shortest(struct __pyx
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("shortest", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":886
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":890
  *     def shortest(self, fwords, ifrom, ito):
  *         cdef unsigned alt_id
  *         min = 1000             # <<<<<<<<<<<<<<
@@ -43702,20 +45594,20 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_18shortest(struct __pyx
   __Pyx_INCREF(__pyx_int_1000);
   __pyx_v_min = __pyx_int_1000;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":887
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":891
  *         cdef unsigned alt_id
  *         min = 1000
  *         if (ifrom > ito):             # <<<<<<<<<<<<<<
  *             return min
  *         if (ifrom == ito):
  */
-  __pyx_t_1 = PyObject_RichCompare(__pyx_v_ifrom, __pyx_v_ito, Py_GT); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 887; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_RichCompare(__pyx_v_ifrom, __pyx_v_ito, Py_GT); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 891; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_2 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 887; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_2 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 891; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   if (__pyx_t_2) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":888
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":892
  *         min = 1000
  *         if (ifrom > ito):
  *             return min             # <<<<<<<<<<<<<<
@@ -43730,20 +45622,20 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_18shortest(struct __pyx
   }
   __pyx_L3:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":889
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":893
  *         if (ifrom > ito):
  *             return min
  *         if (ifrom == ito):             # <<<<<<<<<<<<<<
  *             return 0
  *         for alt_id in range(len(fwords[ifrom])):
  */
-  __pyx_t_1 = PyObject_RichCompare(__pyx_v_ifrom, __pyx_v_ito, Py_EQ); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 889; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_RichCompare(__pyx_v_ifrom, __pyx_v_ito, Py_EQ); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 893; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_2 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 889; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_2 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 893; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   if (__pyx_t_2) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":890
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":894
  *             return min
  *         if (ifrom == ito):
  *             return 0             # <<<<<<<<<<<<<<
@@ -43758,41 +45650,41 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_18shortest(struct __pyx
   }
   __pyx_L4:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":891
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":895
  *         if (ifrom == ito):
  *             return 0
  *         for alt_id in range(len(fwords[ifrom])):             # <<<<<<<<<<<<<<
  *             currmin = self.shortest(fwords,ifrom+fwords[ifrom][alt_id][2],ito)
  *             if (fwords[ifrom][alt_id][0] != EPSILON):
  */
-  __pyx_t_1 = PyObject_GetItem(__pyx_v_fwords, __pyx_v_ifrom); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 891; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_GetItem(__pyx_v_fwords, __pyx_v_ifrom); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 895; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_3 = PyObject_Length(__pyx_t_1); if (unlikely(__pyx_t_3 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 891; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_Length(__pyx_t_1); if (unlikely(__pyx_t_3 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 895; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   for (__pyx_t_4 = 0; __pyx_t_4 < __pyx_t_3; __pyx_t_4+=1) {
     __pyx_v_alt_id = __pyx_t_4;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":892
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":896
  *             return 0
  *         for alt_id in range(len(fwords[ifrom])):
  *             currmin = self.shortest(fwords,ifrom+fwords[ifrom][alt_id][2],ito)             # <<<<<<<<<<<<<<
  *             if (fwords[ifrom][alt_id][0] != EPSILON):
  *                 currmin += 1
  */
-    __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_v_self), __pyx_n_s__shortest); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 892; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_v_self), __pyx_n_s__shortest); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 896; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_5 = PyObject_GetItem(__pyx_v_fwords, __pyx_v_ifrom); if (!__pyx_t_5) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 892; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyObject_GetItem(__pyx_v_fwords, __pyx_v_ifrom); if (!__pyx_t_5) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 896; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
-    __pyx_t_6 = __Pyx_GetItemInt(__pyx_t_5, __pyx_v_alt_id, sizeof(unsigned int)+1, PyLong_FromUnsignedLong); if (!__pyx_t_6) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 892; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = __Pyx_GetItemInt(__pyx_t_5, __pyx_v_alt_id, sizeof(unsigned int)+1, PyLong_FromUnsignedLong); if (!__pyx_t_6) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 896; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-    __pyx_t_5 = __Pyx_GetItemInt(__pyx_t_6, 2, sizeof(long), PyInt_FromLong); if (!__pyx_t_5) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 892; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = __Pyx_GetItemInt(__pyx_t_6, 2, sizeof(long), PyInt_FromLong); if (!__pyx_t_5) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 896; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-    __pyx_t_6 = PyNumber_Add(__pyx_v_ifrom, __pyx_t_5); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 892; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = PyNumber_Add(__pyx_v_ifrom, __pyx_t_5); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 896; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-    __pyx_t_5 = PyTuple_New(3); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 892; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyTuple_New(3); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 896; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
     __Pyx_INCREF(__pyx_v_fwords);
     PyTuple_SET_ITEM(__pyx_t_5, 0, __pyx_v_fwords);
@@ -43803,7 +45695,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_18shortest(struct __pyx
     PyTuple_SET_ITEM(__pyx_t_5, 2, __pyx_v_ito);
     __Pyx_GIVEREF(__pyx_v_ito);
     __pyx_t_6 = 0;
-    __pyx_t_6 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_5), NULL); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 892; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_5), NULL); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 896; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     __Pyx_DECREF(((PyObject *)__pyx_t_5)); __pyx_t_5 = 0;
@@ -43811,39 +45703,39 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_18shortest(struct __pyx
     __pyx_v_currmin = __pyx_t_6;
     __pyx_t_6 = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":893
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":897
  *         for alt_id in range(len(fwords[ifrom])):
  *             currmin = self.shortest(fwords,ifrom+fwords[ifrom][alt_id][2],ito)
  *             if (fwords[ifrom][alt_id][0] != EPSILON):             # <<<<<<<<<<<<<<
  *                 currmin += 1
  *             if (currmin<min):
  */
-    __pyx_t_6 = PyObject_GetItem(__pyx_v_fwords, __pyx_v_ifrom); if (!__pyx_t_6) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 893; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = PyObject_GetItem(__pyx_v_fwords, __pyx_v_ifrom); if (!__pyx_t_6) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 897; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
-    __pyx_t_5 = __Pyx_GetItemInt(__pyx_t_6, __pyx_v_alt_id, sizeof(unsigned int)+1, PyLong_FromUnsignedLong); if (!__pyx_t_5) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 893; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = __Pyx_GetItemInt(__pyx_t_6, __pyx_v_alt_id, sizeof(unsigned int)+1, PyLong_FromUnsignedLong); if (!__pyx_t_5) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 897; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-    __pyx_t_6 = __Pyx_GetItemInt(__pyx_t_5, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_6) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 893; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = __Pyx_GetItemInt(__pyx_t_5, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_6) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 897; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-    __pyx_t_5 = PyInt_FromLong(__pyx_v_3_sa_EPSILON); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 893; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyInt_FromLong(__pyx_v_3_sa_EPSILON); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 897; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
-    __pyx_t_1 = PyObject_RichCompare(__pyx_t_6, __pyx_t_5, Py_NE); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 893; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyObject_RichCompare(__pyx_t_6, __pyx_t_5, Py_NE); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 897; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
     __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-    __pyx_t_2 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_2 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 893; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_2 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 897; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     if (__pyx_t_2) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":894
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":898
  *             currmin = self.shortest(fwords,ifrom+fwords[ifrom][alt_id][2],ito)
  *             if (fwords[ifrom][alt_id][0] != EPSILON):
  *                 currmin += 1             # <<<<<<<<<<<<<<
  *             if (currmin<min):
  *                 min = currmin
  */
-      __pyx_t_1 = PyNumber_InPlaceAdd(__pyx_v_currmin, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 894; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyNumber_InPlaceAdd(__pyx_v_currmin, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 898; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
       __Pyx_DECREF(__pyx_v_currmin);
       __pyx_v_currmin = __pyx_t_1;
@@ -43852,20 +45744,20 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_18shortest(struct __pyx
     }
     __pyx_L7:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":895
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":899
  *             if (fwords[ifrom][alt_id][0] != EPSILON):
  *                 currmin += 1
  *             if (currmin<min):             # <<<<<<<<<<<<<<
  *                 min = currmin
  *         return min
  */
-    __pyx_t_1 = PyObject_RichCompare(__pyx_v_currmin, __pyx_v_min, Py_LT); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 895; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyObject_RichCompare(__pyx_v_currmin, __pyx_v_min, Py_LT); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 899; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_2 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_2 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 895; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_2 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 899; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     if (__pyx_t_2) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":896
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":900
  *                 currmin += 1
  *             if (currmin<min):
  *                 min = currmin             # <<<<<<<<<<<<<<
@@ -43880,7 +45772,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_18shortest(struct __pyx
     __pyx_L8:;
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":897
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":901
  *             if (currmin<min):
  *                 min = currmin
  *         return min             # <<<<<<<<<<<<<<
@@ -43939,7 +45831,7 @@ static PyObject *__pyx_pw_3_sa_23HieroCachingRuleFactory_21get_next_states(PyObj
         case  1:
         if (likely((values[1] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__curr_idx)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("get_next_states", 0, 2, 3, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 899; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("get_next_states", 0, 2, 3, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 903; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
         case  2:
         if (kw_args > 0) {
@@ -43948,7 +45840,7 @@ static PyObject *__pyx_pw_3_sa_23HieroCachingRuleFactory_21get_next_states(PyObj
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "get_next_states") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 899; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "get_next_states") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 903; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else {
       switch (PyTuple_GET_SIZE(__pyx_args)) {
@@ -43965,7 +45857,7 @@ static PyObject *__pyx_pw_3_sa_23HieroCachingRuleFactory_21get_next_states(PyObj
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("get_next_states", 0, 2, 3, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 899; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+  __Pyx_RaiseArgtupleInvalid("get_next_states", 0, 2, 3, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 903; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_AddTraceback("_sa.HieroCachingRuleFactory.get_next_states", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -43976,7 +45868,7 @@ static PyObject *__pyx_pw_3_sa_23HieroCachingRuleFactory_21get_next_states(PyObj
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":899
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":903
  *         return min
  * 
  *     def get_next_states(self, _columns, curr_idx, min_dist=2):             # <<<<<<<<<<<<<<
@@ -44009,26 +45901,26 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_20get_next_states(struc
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("get_next_states", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":900
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":904
  * 
  *     def get_next_states(self, _columns, curr_idx, min_dist=2):
  *         result = []             # <<<<<<<<<<<<<<
  *         candidate = [[curr_idx,0]]
  * 
  */
-  __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 900; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 904; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_v_result = __pyx_t_1;
   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":901
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":905
  *     def get_next_states(self, _columns, curr_idx, min_dist=2):
  *         result = []
  *         candidate = [[curr_idx,0]]             # <<<<<<<<<<<<<<
  * 
  *         while len(candidate) > 0:
  */
-  __pyx_t_1 = PyList_New(2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 901; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyList_New(2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 905; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_INCREF(__pyx_v_curr_idx);
   PyList_SET_ITEM(__pyx_t_1, 0, __pyx_v_curr_idx);
@@ -44036,7 +45928,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_20get_next_states(struc
   __Pyx_INCREF(__pyx_int_0);
   PyList_SET_ITEM(__pyx_t_1, 1, __pyx_int_0);
   __Pyx_GIVEREF(__pyx_int_0);
-  __pyx_t_2 = PyList_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 901; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyList_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 905; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   PyList_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_t_1));
   __Pyx_GIVEREF(((PyObject *)__pyx_t_1));
@@ -44044,7 +45936,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_20get_next_states(struc
   __pyx_v_candidate = __pyx_t_2;
   __pyx_t_2 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":903
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":907
  *         candidate = [[curr_idx,0]]
  * 
  *         while len(candidate) > 0:             # <<<<<<<<<<<<<<
@@ -44052,44 +45944,44 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_20get_next_states(struc
  *             if curr[0] >= len(_columns):
  */
   while (1) {
-    __pyx_t_3 = PyList_GET_SIZE(((PyObject *)__pyx_v_candidate)); if (unlikely(__pyx_t_3 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 903; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyList_GET_SIZE(((PyObject *)__pyx_v_candidate)); if (unlikely(__pyx_t_3 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 907; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __pyx_t_4 = (__pyx_t_3 > 0);
     if (!__pyx_t_4) break;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":904
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":908
  * 
  *         while len(candidate) > 0:
  *             curr = candidate.pop()             # <<<<<<<<<<<<<<
  *             if curr[0] >= len(_columns):
  *                 continue
  */
-    __pyx_t_2 = __Pyx_PyObject_Pop(((PyObject *)__pyx_v_candidate)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 904; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = __Pyx_PyObject_Pop(((PyObject *)__pyx_v_candidate)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 908; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_XDECREF(__pyx_v_curr);
     __pyx_v_curr = __pyx_t_2;
     __pyx_t_2 = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":905
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":909
  *         while len(candidate) > 0:
  *             curr = candidate.pop()
  *             if curr[0] >= len(_columns):             # <<<<<<<<<<<<<<
  *                 continue
  *             if curr[0] not in result and min_dist <= curr[1] <= self.max_initial_size:
  */
-    __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_curr, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 905; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_curr, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 909; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_3 = PyObject_Length(__pyx_v__columns); if (unlikely(__pyx_t_3 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 905; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __pyx_t_1 = PyInt_FromSsize_t(__pyx_t_3); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 905; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_Length(__pyx_v__columns); if (unlikely(__pyx_t_3 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 909; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyInt_FromSsize_t(__pyx_t_3); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 909; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_5 = PyObject_RichCompare(__pyx_t_2, __pyx_t_1, Py_GE); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 905; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyObject_RichCompare(__pyx_t_2, __pyx_t_1, Py_GE); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 909; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-    __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_5); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 905; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_5); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 909; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
     if (__pyx_t_4) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":906
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":910
  *             curr = candidate.pop()
  *             if curr[0] >= len(_columns):
  *                 continue             # <<<<<<<<<<<<<<
@@ -44101,32 +45993,32 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_20get_next_states(struc
     }
     __pyx_L5:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":907
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":911
  *             if curr[0] >= len(_columns):
  *                 continue
  *             if curr[0] not in result and min_dist <= curr[1] <= self.max_initial_size:             # <<<<<<<<<<<<<<
  *                 result.append(curr[0]);
  *             curr_col = _columns[curr[0]]
  */
-    __pyx_t_5 = __Pyx_GetItemInt(__pyx_v_curr, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_5) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 907; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = __Pyx_GetItemInt(__pyx_v_curr, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_5) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 911; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
-    __pyx_t_4 = (__Pyx_NegateNonNeg(PySequence_Contains(((PyObject *)__pyx_v_result), __pyx_t_5))); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 907; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = (__Pyx_NegateNonNeg(PySequence_Contains(((PyObject *)__pyx_v_result), __pyx_t_5))); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 911; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
     if (__pyx_t_4) {
-      __pyx_t_5 = __Pyx_GetItemInt(__pyx_v_curr, 1, sizeof(long), PyInt_FromLong); if (!__pyx_t_5) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 907; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_5 = __Pyx_GetItemInt(__pyx_v_curr, 1, sizeof(long), PyInt_FromLong); if (!__pyx_t_5) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 911; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_5);
-      __pyx_t_1 = PyObject_RichCompare(__pyx_v_min_dist, __pyx_t_5, Py_LE); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 907; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyObject_RichCompare(__pyx_v_min_dist, __pyx_t_5, Py_LE); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 911; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
       if (__Pyx_PyObject_IsTrue(__pyx_t_1)) {
         __Pyx_DECREF(__pyx_t_1);
-        __pyx_t_2 = PyInt_FromLong(__pyx_v_self->max_initial_size); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 907; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_2 = PyInt_FromLong(__pyx_v_self->max_initial_size); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 911; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_2);
-        __pyx_t_1 = PyObject_RichCompare(__pyx_t_5, __pyx_t_2, Py_LE); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 907; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_1 = PyObject_RichCompare(__pyx_t_5, __pyx_t_2, Py_LE); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 911; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_1);
         __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       }
       __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-      __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 907; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 911; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
       __pyx_t_7 = __pyx_t_6;
     } else {
@@ -44134,38 +46026,38 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_20get_next_states(struc
     }
     if (__pyx_t_7) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":908
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":912
  *                 continue
  *             if curr[0] not in result and min_dist <= curr[1] <= self.max_initial_size:
  *                 result.append(curr[0]);             # <<<<<<<<<<<<<<
  *             curr_col = _columns[curr[0]]
  *             for alt in curr_col:
  */
-      __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_curr, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 908; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_curr, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 912; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
-      __pyx_t_8 = PyList_Append(__pyx_v_result, __pyx_t_1); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 908; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = PyList_Append(__pyx_v_result, __pyx_t_1); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 912; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
       goto __pyx_L6;
     }
     __pyx_L6:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":909
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":913
  *             if curr[0] not in result and min_dist <= curr[1] <= self.max_initial_size:
  *                 result.append(curr[0]);
  *             curr_col = _columns[curr[0]]             # <<<<<<<<<<<<<<
  *             for alt in curr_col:
  *                 next_id = curr[0]+alt[2]
  */
-    __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_curr, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 909; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_curr, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 913; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_5 = PyObject_GetItem(__pyx_v__columns, __pyx_t_1); if (!__pyx_t_5) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 909; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyObject_GetItem(__pyx_v__columns, __pyx_t_1); if (!__pyx_t_5) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 913; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     __Pyx_XDECREF(__pyx_v_curr_col);
     __pyx_v_curr_col = __pyx_t_5;
     __pyx_t_5 = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":910
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":914
  *                 result.append(curr[0]);
  *             curr_col = _columns[curr[0]]
  *             for alt in curr_col:             # <<<<<<<<<<<<<<
@@ -44176,7 +46068,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_20get_next_states(struc
       __pyx_t_5 = __pyx_v_curr_col; __Pyx_INCREF(__pyx_t_5); __pyx_t_3 = 0;
       __pyx_t_9 = NULL;
     } else {
-      __pyx_t_3 = -1; __pyx_t_5 = PyObject_GetIter(__pyx_v_curr_col); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 910; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = -1; __pyx_t_5 = PyObject_GetIter(__pyx_v_curr_col); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 914; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_5);
       __pyx_t_9 = Py_TYPE(__pyx_t_5)->tp_iternext;
     }
@@ -44186,21 +46078,21 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_20get_next_states(struc
         #if CYTHON_COMPILING_IN_CPYTHON
         __pyx_t_1 = PyList_GET_ITEM(__pyx_t_5, __pyx_t_3); __Pyx_INCREF(__pyx_t_1); __pyx_t_3++;
         #else
-        __pyx_t_1 = PySequence_ITEM(__pyx_t_5, __pyx_t_3); __pyx_t_3++; if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 910; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+        __pyx_t_1 = PySequence_ITEM(__pyx_t_5, __pyx_t_3); __pyx_t_3++; if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 914; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
         #endif
       } else if (!__pyx_t_9 && PyTuple_CheckExact(__pyx_t_5)) {
         if (__pyx_t_3 >= PyTuple_GET_SIZE(__pyx_t_5)) break;
         #if CYTHON_COMPILING_IN_CPYTHON
         __pyx_t_1 = PyTuple_GET_ITEM(__pyx_t_5, __pyx_t_3); __Pyx_INCREF(__pyx_t_1); __pyx_t_3++;
         #else
-        __pyx_t_1 = PySequence_ITEM(__pyx_t_5, __pyx_t_3); __pyx_t_3++; if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 910; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+        __pyx_t_1 = PySequence_ITEM(__pyx_t_5, __pyx_t_3); __pyx_t_3++; if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 914; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
         #endif
       } else {
         __pyx_t_1 = __pyx_t_9(__pyx_t_5);
         if (unlikely(!__pyx_t_1)) {
           if (PyErr_Occurred()) {
             if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-            else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 910; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 914; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           }
           break;
         }
@@ -44210,18 +46102,18 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_20get_next_states(struc
       __pyx_v_alt = __pyx_t_1;
       __pyx_t_1 = 0;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":911
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":915
  *             curr_col = _columns[curr[0]]
  *             for alt in curr_col:
  *                 next_id = curr[0]+alt[2]             # <<<<<<<<<<<<<<
  *                 jump = 1
  *                 if (alt[0] == EPSILON):
  */
-      __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_curr, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 911; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_curr, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 915; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
-      __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_alt, 2, sizeof(long), PyInt_FromLong); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 911; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_alt, 2, sizeof(long), PyInt_FromLong); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 915; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_10 = PyNumber_Add(__pyx_t_1, __pyx_t_2); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 911; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_10 = PyNumber_Add(__pyx_t_1, __pyx_t_2); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 915; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_10);
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
@@ -44229,7 +46121,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_20get_next_states(struc
       __pyx_v_next_id = __pyx_t_10;
       __pyx_t_10 = 0;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":912
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":916
  *             for alt in curr_col:
  *                 next_id = curr[0]+alt[2]
  *                 jump = 1             # <<<<<<<<<<<<<<
@@ -44240,26 +46132,26 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_20get_next_states(struc
       __Pyx_XDECREF(__pyx_v_jump);
       __pyx_v_jump = __pyx_int_1;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":913
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":917
  *                 next_id = curr[0]+alt[2]
  *                 jump = 1
  *                 if (alt[0] == EPSILON):             # <<<<<<<<<<<<<<
  *                     jump = 0
  *                 if next_id not in result and min_dist <= curr[1]+jump <= self.max_initial_size+1:
  */
-      __pyx_t_10 = __Pyx_GetItemInt(__pyx_v_alt, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_10) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 913; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_10 = __Pyx_GetItemInt(__pyx_v_alt, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_10) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 917; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_10);
-      __pyx_t_2 = PyInt_FromLong(__pyx_v_3_sa_EPSILON); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 913; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyInt_FromLong(__pyx_v_3_sa_EPSILON); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 917; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_1 = PyObject_RichCompare(__pyx_t_10, __pyx_t_2, Py_EQ); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 913; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyObject_RichCompare(__pyx_t_10, __pyx_t_2, Py_EQ); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 917; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
       __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-      __pyx_t_7 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_7 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 913; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_7 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_7 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 917; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
       if (__pyx_t_7) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":914
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":918
  *                 jump = 1
  *                 if (alt[0] == EPSILON):
  *                     jump = 0             # <<<<<<<<<<<<<<
@@ -44273,32 +46165,32 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_20get_next_states(struc
       }
       __pyx_L9:;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":915
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":919
  *                 if (alt[0] == EPSILON):
  *                     jump = 0
  *                 if next_id not in result and min_dist <= curr[1]+jump <= self.max_initial_size+1:             # <<<<<<<<<<<<<<
  *                     candidate.append([next_id,curr[1]+jump])
  *         return sorted(result);
  */
-      __pyx_t_7 = (__Pyx_NegateNonNeg(PySequence_Contains(((PyObject *)__pyx_v_result), __pyx_v_next_id))); if (unlikely(__pyx_t_7 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 915; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_7 = (__Pyx_NegateNonNeg(PySequence_Contains(((PyObject *)__pyx_v_result), __pyx_v_next_id))); if (unlikely(__pyx_t_7 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 919; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       if (__pyx_t_7) {
-        __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_curr, 1, sizeof(long), PyInt_FromLong); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 915; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_curr, 1, sizeof(long), PyInt_FromLong); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 919; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_1);
-        __pyx_t_2 = PyNumber_Add(__pyx_t_1, __pyx_v_jump); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 915; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_2 = PyNumber_Add(__pyx_t_1, __pyx_v_jump); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 919; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_2);
         __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-        __pyx_t_1 = PyObject_RichCompare(__pyx_v_min_dist, __pyx_t_2, Py_LE); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 915; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_1 = PyObject_RichCompare(__pyx_v_min_dist, __pyx_t_2, Py_LE); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 919; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_1);
         if (__Pyx_PyObject_IsTrue(__pyx_t_1)) {
           __Pyx_DECREF(__pyx_t_1);
-          __pyx_t_10 = PyInt_FromLong((__pyx_v_self->max_initial_size + 1)); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 915; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_10 = PyInt_FromLong((__pyx_v_self->max_initial_size + 1)); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 919; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_10);
-          __pyx_t_1 = PyObject_RichCompare(__pyx_t_2, __pyx_t_10, Py_LE); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 915; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_1 = PyObject_RichCompare(__pyx_t_2, __pyx_t_10, Py_LE); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 919; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_1);
           __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
         }
         __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-        __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 915; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 919; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
         __pyx_t_6 = __pyx_t_4;
       } else {
@@ -44306,19 +46198,19 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_20get_next_states(struc
       }
       if (__pyx_t_6) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":916
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":920
  *                     jump = 0
  *                 if next_id not in result and min_dist <= curr[1]+jump <= self.max_initial_size+1:
  *                     candidate.append([next_id,curr[1]+jump])             # <<<<<<<<<<<<<<
  *         return sorted(result);
  * 
  */
-        __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_curr, 1, sizeof(long), PyInt_FromLong); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 916; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_curr, 1, sizeof(long), PyInt_FromLong); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 920; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_1);
-        __pyx_t_2 = PyNumber_Add(__pyx_t_1, __pyx_v_jump); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 916; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_2 = PyNumber_Add(__pyx_t_1, __pyx_v_jump); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 920; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_2);
         __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-        __pyx_t_1 = PyList_New(2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 916; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_1 = PyList_New(2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 920; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_1);
         __Pyx_INCREF(__pyx_v_next_id);
         PyList_SET_ITEM(__pyx_t_1, 0, __pyx_v_next_id);
@@ -44326,7 +46218,7 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_20get_next_states(struc
         PyList_SET_ITEM(__pyx_t_1, 1, __pyx_t_2);
         __Pyx_GIVEREF(__pyx_t_2);
         __pyx_t_2 = 0;
-        __pyx_t_8 = PyList_Append(__pyx_v_candidate, ((PyObject *)__pyx_t_1)); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 916; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_8 = PyList_Append(__pyx_v_candidate, ((PyObject *)__pyx_t_1)); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 920; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
         goto __pyx_L10;
       }
@@ -44336,20 +46228,20 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_20get_next_states(struc
     __pyx_L3_continue:;
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":917
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":921
  *                 if next_id not in result and min_dist <= curr[1]+jump <= self.max_initial_size+1:
  *                     candidate.append([next_id,curr[1]+jump])
  *         return sorted(result);             # <<<<<<<<<<<<<<
  * 
- *     def input(self, fwords, models):
+ *     def input(self, fwords):
  */
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_5 = PyTuple_New(1); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 917; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_5 = PyTuple_New(1); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 921; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_5);
   __Pyx_INCREF(((PyObject *)__pyx_v_result));
   PyTuple_SET_ITEM(__pyx_t_5, 0, ((PyObject *)__pyx_v_result));
   __Pyx_GIVEREF(((PyObject *)__pyx_v_result));
-  __pyx_t_1 = PyObject_Call(__pyx_builtin_sorted, ((PyObject *)__pyx_t_5), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 917; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Call(__pyx_builtin_sorted, ((PyObject *)__pyx_t_5), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 921; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(((PyObject *)__pyx_t_5)); __pyx_t_5 = 0;
   __pyx_r = __pyx_t_1;
@@ -44377,82 +46269,99 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_20get_next_states(struc
   __Pyx_RefNannyFinishContext();
   return __pyx_r;
 }
-static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
+static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator5(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
 
 /* Python wrapper */
-static PyObject *__pyx_pw_3_sa_23HieroCachingRuleFactory_23input(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static PyObject *__pyx_pw_3_sa_23HieroCachingRuleFactory_23input(PyObject *__pyx_v_self, PyObject *__pyx_v_fwords); /*proto*/
 static char __pyx_doc_3_sa_23HieroCachingRuleFactory_22input[] = "When this function is called on the RuleFactory,\n        it looks up all of the rules that can be used to translate\n        the input sentence";
-static PyObject *__pyx_pw_3_sa_23HieroCachingRuleFactory_23input(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
-  PyObject *__pyx_v_fwords = 0;
-  PyObject *__pyx_v_models = 0;
+static PyObject *__pyx_pw_3_sa_23HieroCachingRuleFactory_23input(PyObject *__pyx_v_self, PyObject *__pyx_v_fwords) {
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("input (wrapper)", 0);
-  {
-    static PyObject **__pyx_pyargnames[] = {&__pyx_n_s__fwords,&__pyx_n_s__models,0};
-    PyObject* values[2] = {0,0};
-    if (unlikely(__pyx_kwds)) {
-      Py_ssize_t kw_args;
-      const Py_ssize_t pos_args = PyTuple_GET_SIZE(__pyx_args);
-      switch (pos_args) {
-        case  2: values[1] = PyTuple_GET_ITEM(__pyx_args, 1);
-        case  1: values[0] = PyTuple_GET_ITEM(__pyx_args, 0);
-        case  0: break;
-        default: goto __pyx_L5_argtuple_error;
-      }
-      kw_args = PyDict_Size(__pyx_kwds);
-      switch (pos_args) {
-        case  0:
-        if (likely((values[0] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__fwords)) != 0)) kw_args--;
-        else goto __pyx_L5_argtuple_error;
-        case  1:
-        if (likely((values[1] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__models)) != 0)) kw_args--;
-        else {
-          __Pyx_RaiseArgtupleInvalid("input", 1, 2, 2, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 919; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
-        }
-      }
-      if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "input") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 919; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
-      }
-    } else if (PyTuple_GET_SIZE(__pyx_args) != 2) {
-      goto __pyx_L5_argtuple_error;
-    } else {
-      values[0] = PyTuple_GET_ITEM(__pyx_args, 0);
-      values[1] = PyTuple_GET_ITEM(__pyx_args, 1);
-    }
-    __pyx_v_fwords = values[0];
-    __pyx_v_models = values[1];
-  }
-  goto __pyx_L4_argument_unpacking_done;
-  __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("input", 1, 2, 2, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 919; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
-  __pyx_L3_error:;
-  __Pyx_AddTraceback("_sa.HieroCachingRuleFactory.input", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __pyx_r = __pyx_pf_3_sa_23HieroCachingRuleFactory_22input(((struct __pyx_obj_3_sa_HieroCachingRuleFactory *)__pyx_v_self), ((PyObject *)__pyx_v_fwords));
   __Pyx_RefNannyFinishContext();
-  return NULL;
-  __pyx_L4_argument_unpacking_done:;
-  __pyx_r = __pyx_pf_3_sa_23HieroCachingRuleFactory_22input(((struct __pyx_obj_3_sa_HieroCachingRuleFactory *)__pyx_v_self), __pyx_v_fwords, __pyx_v_models);
+  return __pyx_r;
+}
+
+/* Python wrapper */
+static PyObject *__pyx_pw_3_sa_23HieroCachingRuleFactory_5input_lambda1(PyObject *__pyx_self, CYTHON_UNUSED PyObject *unused); /*proto*/
+static PyMethodDef __pyx_mdef_3_sa_23HieroCachingRuleFactory_5input_lambda1 = {__Pyx_NAMESTR("lambda1"), (PyCFunction)__pyx_pw_3_sa_23HieroCachingRuleFactory_5input_lambda1, METH_NOARGS, __Pyx_DOCSTR(0)};
+static PyObject *__pyx_pw_3_sa_23HieroCachingRuleFactory_5input_lambda1(PyObject *__pyx_self, CYTHON_UNUSED PyObject *unused) {
+  PyObject *__pyx_r = 0;
+  __Pyx_RefNannyDeclarations
+  __Pyx_RefNannySetupContext("lambda1 (wrapper)", 0);
+  __pyx_r = __pyx_lambda_funcdef_lambda1(__pyx_self);
   __Pyx_RefNannyFinishContext();
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":919
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1082
+ *                         if len(extracts) > 0:
+ *                             fcount = Counter()
+ *                             fphrases = defaultdict(lambda: defaultdict(Counter))             # <<<<<<<<<<<<<<
+ *                             for f, e, count, als in extracts:
+ *                                 fcount[f] += count
+ */
+
+static PyObject *__pyx_lambda_funcdef_lambda1(CYTHON_UNUSED PyObject *__pyx_self) {
+  PyObject *__pyx_r = NULL;
+  __Pyx_RefNannyDeclarations
+  PyObject *__pyx_t_1 = NULL;
+  PyObject *__pyx_t_2 = NULL;
+  PyObject *__pyx_t_3 = NULL;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
+  __Pyx_RefNannySetupContext("lambda1", 0);
+  __Pyx_XDECREF(__pyx_r);
+  __pyx_t_1 = __Pyx_GetName(__pyx_m, __pyx_n_s__defaultdict); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1082; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_1);
+  __pyx_t_2 = __Pyx_GetName(__pyx_m, __pyx_n_s__Counter); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1082; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1082; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_2);
+  __Pyx_GIVEREF(__pyx_t_2);
+  __pyx_t_2 = 0;
+  __pyx_t_2 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1082; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
+  __pyx_r = __pyx_t_2;
+  __pyx_t_2 = 0;
+  goto __pyx_L0;
+
+  __pyx_r = Py_None; __Pyx_INCREF(Py_None);
+  goto __pyx_L0;
+  __pyx_L1_error:;
+  __Pyx_XDECREF(__pyx_t_1);
+  __Pyx_XDECREF(__pyx_t_2);
+  __Pyx_XDECREF(__pyx_t_3);
+  __Pyx_AddTraceback("_sa.HieroCachingRuleFactory.input.lambda1", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __pyx_r = NULL;
+  __pyx_L0:;
+  __Pyx_XGIVEREF(__pyx_r);
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":923
  *         return sorted(result);
  * 
- *     def input(self, fwords, models):             # <<<<<<<<<<<<<<
+ *     def input(self, fwords):             # <<<<<<<<<<<<<<
  *         '''When this function is called on the RuleFactory,
  *         it looks up all of the rules that can be used to translate
  */
 
-static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_22input(struct __pyx_obj_3_sa_HieroCachingRuleFactory *__pyx_v_self, PyObject *__pyx_v_fwords, PyObject *__pyx_v_models) {
-  struct __pyx_obj_3_sa___pyx_scope_struct_4_input *__pyx_cur_scope;
+static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_22input(struct __pyx_obj_3_sa_HieroCachingRuleFactory *__pyx_v_self, PyObject *__pyx_v_fwords) {
+  struct __pyx_obj_3_sa___pyx_scope_struct_11_input *__pyx_cur_scope;
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
   int __pyx_lineno = 0;
   const char *__pyx_filename = NULL;
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("input", 0);
-  __pyx_cur_scope = (struct __pyx_obj_3_sa___pyx_scope_struct_4_input *)__pyx_ptype_3_sa___pyx_scope_struct_4_input->tp_new(__pyx_ptype_3_sa___pyx_scope_struct_4_input, __pyx_empty_tuple, NULL);
+  __pyx_cur_scope = (struct __pyx_obj_3_sa___pyx_scope_struct_11_input *)__pyx_ptype_3_sa___pyx_scope_struct_11_input->tp_new(__pyx_ptype_3_sa___pyx_scope_struct_11_input, __pyx_empty_tuple, NULL);
   if (unlikely(!__pyx_cur_scope)) {
     __Pyx_RefNannyFinishContext();
     return NULL;
@@ -44464,11 +46373,8 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_22input(struct __pyx_ob
   __pyx_cur_scope->__pyx_v_fwords = __pyx_v_fwords;
   __Pyx_INCREF(__pyx_cur_scope->__pyx_v_fwords);
   __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_fwords);
-  __pyx_cur_scope->__pyx_v_models = __pyx_v_models;
-  __Pyx_INCREF(__pyx_cur_scope->__pyx_v_models);
-  __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_models);
   {
-    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 919; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_3_sa_23HieroCachingRuleFactory_24generator5, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 923; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_cur_scope);
     __Pyx_RefNannyFinishContext();
     return (PyObject *) gen;
@@ -44486,9 +46392,9 @@ static PyObject *__pyx_pf_3_sa_23HieroCachingRuleFactory_22input(struct __pyx_ob
   return __pyx_r;
 }
 
-static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
+static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator5(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
 {
-  struct __pyx_obj_3_sa___pyx_scope_struct_4_input *__pyx_cur_scope = ((struct __pyx_obj_3_sa___pyx_scope_struct_4_input *)__pyx_generator->closure);
+  struct __pyx_obj_3_sa___pyx_scope_struct_11_input *__pyx_cur_scope = ((struct __pyx_obj_3_sa___pyx_scope_struct_11_input *)__pyx_generator->closure);
   PyObject *__pyx_r = NULL;
   Py_ssize_t __pyx_t_1;
   PyObject *__pyx_t_2 = NULL;
@@ -44516,32 +46422,34 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
   Py_ssize_t __pyx_t_24;
   Py_ssize_t __pyx_t_25;
   int __pyx_t_26;
-  PyObject *(*__pyx_t_27)(PyObject *);
-  int __pyx_t_28;
+  unsigned int __pyx_t_27;
+  unsigned int __pyx_t_28;
   int __pyx_t_29;
+  int __pyx_t_30;
+  PyObject *(*__pyx_t_31)(PyObject *);
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("None", 0);
   switch (__pyx_generator->resume_label) {
     case 0: goto __pyx_L3_first_run;
-    case 1: goto __pyx_L59_resume_from_yield;
+    case 1: goto __pyx_L57_resume_from_yield;
     default: /* CPython raises the right error here */
     __Pyx_RefNannyFinishContext();
     return NULL;
   }
   __pyx_L3_first_run:;
-  if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 919; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 923; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":930
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":934
  *         cdef Phrase hiero_phrase
  * 
  *         flen = len(fwords)             # <<<<<<<<<<<<<<
  *         start_time = monitor_cpu()
  *         self.extract_time = 0.0
  */
-  __pyx_t_1 = PyObject_Length(__pyx_cur_scope->__pyx_v_fwords); if (unlikely(__pyx_t_1 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 930; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Length(__pyx_cur_scope->__pyx_v_fwords); if (unlikely(__pyx_t_1 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 934; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_cur_scope->__pyx_v_flen = __pyx_t_1;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":931
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":935
  * 
  *         flen = len(fwords)
  *         start_time = monitor_cpu()             # <<<<<<<<<<<<<<
@@ -44550,7 +46458,7 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
  */
   __pyx_cur_scope->__pyx_v_start_time = __pyx_f_3_sa_monitor_cpu();
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":932
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":936
  *         flen = len(fwords)
  *         start_time = monitor_cpu()
  *         self.extract_time = 0.0             # <<<<<<<<<<<<<<
@@ -44559,20 +46467,20 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
  */
   __pyx_cur_scope->__pyx_v_self->extract_time = 0.0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":933
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":937
  *         start_time = monitor_cpu()
  *         self.extract_time = 0.0
  *         nodes_isteps_away_buffer = {}             # <<<<<<<<<<<<<<
  *         hit = 0
  *         reachable_buffer = {}
  */
-  __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 933; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 937; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_2));
   __Pyx_GIVEREF(((PyObject *)__pyx_t_2));
   __pyx_cur_scope->__pyx_v_nodes_isteps_away_buffer = __pyx_t_2;
   __pyx_t_2 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":934
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":938
  *         self.extract_time = 0.0
  *         nodes_isteps_away_buffer = {}
  *         hit = 0             # <<<<<<<<<<<<<<
@@ -44581,33 +46489,33 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
  */
   __pyx_cur_scope->__pyx_v_hit = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":935
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":939
  *         nodes_isteps_away_buffer = {}
  *         hit = 0
  *         reachable_buffer = {}             # <<<<<<<<<<<<<<
  * 
  *         # Do not cache between sentences
  */
-  __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 935; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 939; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_2));
   __Pyx_GIVEREF(((PyObject *)__pyx_t_2));
   __pyx_cur_scope->__pyx_v_reachable_buffer = __pyx_t_2;
   __pyx_t_2 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":938
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":942
  * 
  *         # Do not cache between sentences
  *         self.rules.root = ExtendedTrieNode(phrase_location=PhraseLocation())             # <<<<<<<<<<<<<<
  * 
  *         frontier = []
  */
-  __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 938; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 942; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_2));
-  __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_PhraseLocation)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 938; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_PhraseLocation)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 942; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
-  if (PyDict_SetItem(__pyx_t_2, ((PyObject *)__pyx_n_s__phrase_location), __pyx_t_3) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 938; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_2, ((PyObject *)__pyx_n_s__phrase_location), __pyx_t_3) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 942; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_ExtendedTrieNode)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_2)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 938; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_ExtendedTrieNode)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_2)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 942; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
   __Pyx_GIVEREF(__pyx_t_3);
@@ -44616,85 +46524,85 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
   __pyx_cur_scope->__pyx_v_self->rules->root = __pyx_t_3;
   __pyx_t_3 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":940
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":944
  *         self.rules.root = ExtendedTrieNode(phrase_location=PhraseLocation())
  * 
  *         frontier = []             # <<<<<<<<<<<<<<
  *         for i in range(len(fwords)):
  *             for alt in range(0, len(fwords[i])):
  */
-  __pyx_t_3 = PyList_New(0); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 940; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyList_New(0); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 944; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_GIVEREF(((PyObject *)__pyx_t_3));
   __pyx_cur_scope->__pyx_v_frontier = __pyx_t_3;
   __pyx_t_3 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":941
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":945
  * 
  *         frontier = []
  *         for i in range(len(fwords)):             # <<<<<<<<<<<<<<
  *             for alt in range(0, len(fwords[i])):
  *                 if fwords[i][alt][0] != EPSILON:
  */
-  __pyx_t_1 = PyObject_Length(__pyx_cur_scope->__pyx_v_fwords); if (unlikely(__pyx_t_1 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 941; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Length(__pyx_cur_scope->__pyx_v_fwords); if (unlikely(__pyx_t_1 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 945; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   for (__pyx_t_4 = 0; __pyx_t_4 < __pyx_t_1; __pyx_t_4+=1) {
     __pyx_cur_scope->__pyx_v_i = __pyx_t_4;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":942
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":946
  *         frontier = []
  *         for i in range(len(fwords)):
  *             for alt in range(0, len(fwords[i])):             # <<<<<<<<<<<<<<
  *                 if fwords[i][alt][0] != EPSILON:
  *                     frontier.append((i, i, alt, 0, self.rules.root, (), False))
  */
-    __pyx_t_3 = __Pyx_GetItemInt(__pyx_cur_scope->__pyx_v_fwords, __pyx_cur_scope->__pyx_v_i, sizeof(int), PyInt_FromLong); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 942; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = __Pyx_GetItemInt(__pyx_cur_scope->__pyx_v_fwords, __pyx_cur_scope->__pyx_v_i, sizeof(int), PyInt_FromLong); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 946; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_5 = PyObject_Length(__pyx_t_3); if (unlikely(__pyx_t_5 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 942; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyObject_Length(__pyx_t_3); if (unlikely(__pyx_t_5 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 946; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     for (__pyx_t_6 = 0; __pyx_t_6 < __pyx_t_5; __pyx_t_6+=1) {
       __pyx_cur_scope->__pyx_v_alt = __pyx_t_6;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":943
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":947
  *         for i in range(len(fwords)):
  *             for alt in range(0, len(fwords[i])):
  *                 if fwords[i][alt][0] != EPSILON:             # <<<<<<<<<<<<<<
  *                     frontier.append((i, i, alt, 0, self.rules.root, (), False))
  * 
  */
-      __pyx_t_3 = __Pyx_GetItemInt(__pyx_cur_scope->__pyx_v_fwords, __pyx_cur_scope->__pyx_v_i, sizeof(int), PyInt_FromLong); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 943; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = __Pyx_GetItemInt(__pyx_cur_scope->__pyx_v_fwords, __pyx_cur_scope->__pyx_v_i, sizeof(int), PyInt_FromLong); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 947; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
-      __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_3, __pyx_cur_scope->__pyx_v_alt, sizeof(int), PyInt_FromLong); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 943; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_3, __pyx_cur_scope->__pyx_v_alt, sizeof(int), PyInt_FromLong); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 947; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-      __pyx_t_3 = __Pyx_GetItemInt(__pyx_t_2, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 943; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = __Pyx_GetItemInt(__pyx_t_2, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 947; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-      __pyx_t_2 = PyInt_FromLong(__pyx_v_3_sa_EPSILON); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 943; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyInt_FromLong(__pyx_v_3_sa_EPSILON); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 947; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_7 = PyObject_RichCompare(__pyx_t_3, __pyx_t_2, Py_NE); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 943; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_7 = PyObject_RichCompare(__pyx_t_3, __pyx_t_2, Py_NE); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 947; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_7);
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-      __pyx_t_8 = __Pyx_PyObject_IsTrue(__pyx_t_7); if (unlikely(__pyx_t_8 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 943; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = __Pyx_PyObject_IsTrue(__pyx_t_7); if (unlikely(__pyx_t_8 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 947; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
       if (__pyx_t_8) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":944
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":948
  *             for alt in range(0, len(fwords[i])):
  *                 if fwords[i][alt][0] != EPSILON:
  *                     frontier.append((i, i, alt, 0, self.rules.root, (), False))             # <<<<<<<<<<<<<<
  * 
  *         xroot = None
  */
-        __pyx_t_7 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 944; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_7 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 948; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_7);
-        __pyx_t_2 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 944; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_2 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 948; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_2);
-        __pyx_t_3 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_alt); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 944; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_3 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_alt); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 948; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_3);
-        __pyx_t_9 = __Pyx_PyBool_FromLong(0); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 944; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_9 = __Pyx_PyBool_FromLong(0); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 948; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_9);
-        __pyx_t_10 = PyTuple_New(7); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 944; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_10 = PyTuple_New(7); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 948; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_10);
         PyTuple_SET_ITEM(__pyx_t_10, 0, __pyx_t_7);
         __Pyx_GIVEREF(__pyx_t_7);
@@ -44717,7 +46625,7 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
         __pyx_t_2 = 0;
         __pyx_t_3 = 0;
         __pyx_t_9 = 0;
-        __pyx_t_11 = PyList_Append(__pyx_cur_scope->__pyx_v_frontier, ((PyObject *)__pyx_t_10)); if (unlikely(__pyx_t_11 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 944; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_11 = PyList_Append(__pyx_cur_scope->__pyx_v_frontier, ((PyObject *)__pyx_t_10)); if (unlikely(__pyx_t_11 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 948; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(((PyObject *)__pyx_t_10)); __pyx_t_10 = 0;
         goto __pyx_L8;
       }
@@ -44725,7 +46633,7 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
     }
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":946
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":950
  *                     frontier.append((i, i, alt, 0, self.rules.root, (), False))
  * 
  *         xroot = None             # <<<<<<<<<<<<<<
@@ -44736,7 +46644,7 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
   __Pyx_GIVEREF(Py_None);
   __pyx_cur_scope->__pyx_v_xroot = Py_None;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":947
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":951
  * 
  *         xroot = None
  *         x1 = sym_setindex(self.category, 1)             # <<<<<<<<<<<<<<
@@ -44745,32 +46653,32 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
  */
   __pyx_cur_scope->__pyx_v_x1 = __pyx_f_3_sa_sym_setindex(__pyx_cur_scope->__pyx_v_self->category, 1);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":948
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":952
  *         xroot = None
  *         x1 = sym_setindex(self.category, 1)
  *         if x1 in self.rules.root.children:             # <<<<<<<<<<<<<<
  *             xroot = self.rules.root.children[x1]
  *         else:
  */
-  __pyx_t_10 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_x1); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 948; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_10 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_x1); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 952; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_10);
-  __pyx_t_9 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_self->rules->root, __pyx_n_s__children); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 948; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_9 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_self->rules->root, __pyx_n_s__children); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 952; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_9);
-  __pyx_t_8 = ((PySequence_Contains(__pyx_t_9, __pyx_t_10))); if (unlikely(__pyx_t_8 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 948; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_8 = ((PySequence_Contains(__pyx_t_9, __pyx_t_10))); if (unlikely(__pyx_t_8 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 952; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
   __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
   if (__pyx_t_8) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":949
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":953
  *         x1 = sym_setindex(self.category, 1)
  *         if x1 in self.rules.root.children:
  *             xroot = self.rules.root.children[x1]             # <<<<<<<<<<<<<<
  *         else:
  *             xroot = ExtendedTrieNode(suffix_link=self.rules.root, phrase_location=PhraseLocation())
  */
-    __pyx_t_9 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_self->rules->root, __pyx_n_s__children); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 949; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_9 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_self->rules->root, __pyx_n_s__children); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 953; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_9);
-    __pyx_t_10 = __Pyx_GetItemInt(__pyx_t_9, __pyx_cur_scope->__pyx_v_x1, sizeof(int), PyInt_FromLong); if (!__pyx_t_10) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 949; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_10 = __Pyx_GetItemInt(__pyx_t_9, __pyx_cur_scope->__pyx_v_x1, sizeof(int), PyInt_FromLong); if (!__pyx_t_10) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 953; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_10);
     __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
     __Pyx_GOTREF(__pyx_cur_scope->__pyx_v_xroot);
@@ -44782,21 +46690,21 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
   }
   /*else*/ {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":951
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":955
  *             xroot = self.rules.root.children[x1]
  *         else:
  *             xroot = ExtendedTrieNode(suffix_link=self.rules.root, phrase_location=PhraseLocation())             # <<<<<<<<<<<<<<
  *             self.rules.root.children[x1] = xroot
  * 
  */
-    __pyx_t_10 = PyDict_New(); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 951; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_10 = PyDict_New(); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 955; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(((PyObject *)__pyx_t_10));
-    if (PyDict_SetItem(__pyx_t_10, ((PyObject *)__pyx_n_s__suffix_link), __pyx_cur_scope->__pyx_v_self->rules->root) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 951; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __pyx_t_9 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_PhraseLocation)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 951; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (PyDict_SetItem(__pyx_t_10, ((PyObject *)__pyx_n_s__suffix_link), __pyx_cur_scope->__pyx_v_self->rules->root) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 955; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_9 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_PhraseLocation)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 955; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_9);
-    if (PyDict_SetItem(__pyx_t_10, ((PyObject *)__pyx_n_s__phrase_location), __pyx_t_9) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 951; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (PyDict_SetItem(__pyx_t_10, ((PyObject *)__pyx_n_s__phrase_location), __pyx_t_9) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 955; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
-    __pyx_t_9 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_ExtendedTrieNode)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_10)); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 951; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_9 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_ExtendedTrieNode)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_10)); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 955; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_9);
     __Pyx_DECREF(((PyObject *)__pyx_t_10)); __pyx_t_10 = 0;
     __Pyx_GOTREF(__pyx_cur_scope->__pyx_v_xroot);
@@ -44805,95 +46713,95 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
     __pyx_cur_scope->__pyx_v_xroot = __pyx_t_9;
     __pyx_t_9 = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":952
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":956
  *         else:
  *             xroot = ExtendedTrieNode(suffix_link=self.rules.root, phrase_location=PhraseLocation())
  *             self.rules.root.children[x1] = xroot             # <<<<<<<<<<<<<<
  * 
  *         for i in range(self.min_gap_size, len(fwords)):
  */
-    __pyx_t_9 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_self->rules->root, __pyx_n_s__children); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 952; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_9 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_self->rules->root, __pyx_n_s__children); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 956; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_9);
-    if (__Pyx_SetItemInt(__pyx_t_9, __pyx_cur_scope->__pyx_v_x1, __pyx_cur_scope->__pyx_v_xroot, sizeof(int), PyInt_FromLong) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 952; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (__Pyx_SetItemInt(__pyx_t_9, __pyx_cur_scope->__pyx_v_x1, __pyx_cur_scope->__pyx_v_xroot, sizeof(int), PyInt_FromLong) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 956; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
   }
   __pyx_L9:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":954
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":958
  *             self.rules.root.children[x1] = xroot
  * 
  *         for i in range(self.min_gap_size, len(fwords)):             # <<<<<<<<<<<<<<
  *             for alt in range(0, len(fwords[i])):
  *                 if fwords[i][alt][0] != EPSILON:
  */
-  __pyx_t_1 = PyObject_Length(__pyx_cur_scope->__pyx_v_fwords); if (unlikely(__pyx_t_1 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 954; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Length(__pyx_cur_scope->__pyx_v_fwords); if (unlikely(__pyx_t_1 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 958; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   for (__pyx_t_4 = __pyx_cur_scope->__pyx_v_self->min_gap_size; __pyx_t_4 < __pyx_t_1; __pyx_t_4+=1) {
     __pyx_cur_scope->__pyx_v_i = __pyx_t_4;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":955
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":959
  * 
  *         for i in range(self.min_gap_size, len(fwords)):
  *             for alt in range(0, len(fwords[i])):             # <<<<<<<<<<<<<<
  *                 if fwords[i][alt][0] != EPSILON:
  *                     frontier.append((i-self.min_gap_size, i, alt, self.min_gap_size, xroot, (x1,), True))
  */
-    __pyx_t_9 = __Pyx_GetItemInt(__pyx_cur_scope->__pyx_v_fwords, __pyx_cur_scope->__pyx_v_i, sizeof(int), PyInt_FromLong); if (!__pyx_t_9) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 955; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_9 = __Pyx_GetItemInt(__pyx_cur_scope->__pyx_v_fwords, __pyx_cur_scope->__pyx_v_i, sizeof(int), PyInt_FromLong); if (!__pyx_t_9) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 959; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_9);
-    __pyx_t_5 = PyObject_Length(__pyx_t_9); if (unlikely(__pyx_t_5 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 955; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyObject_Length(__pyx_t_9); if (unlikely(__pyx_t_5 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 959; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
     for (__pyx_t_6 = 0; __pyx_t_6 < __pyx_t_5; __pyx_t_6+=1) {
       __pyx_cur_scope->__pyx_v_alt = __pyx_t_6;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":956
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":960
  *         for i in range(self.min_gap_size, len(fwords)):
  *             for alt in range(0, len(fwords[i])):
  *                 if fwords[i][alt][0] != EPSILON:             # <<<<<<<<<<<<<<
  *                     frontier.append((i-self.min_gap_size, i, alt, self.min_gap_size, xroot, (x1,), True))
  * 
  */
-      __pyx_t_9 = __Pyx_GetItemInt(__pyx_cur_scope->__pyx_v_fwords, __pyx_cur_scope->__pyx_v_i, sizeof(int), PyInt_FromLong); if (!__pyx_t_9) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 956; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_9 = __Pyx_GetItemInt(__pyx_cur_scope->__pyx_v_fwords, __pyx_cur_scope->__pyx_v_i, sizeof(int), PyInt_FromLong); if (!__pyx_t_9) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 960; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_9);
-      __pyx_t_10 = __Pyx_GetItemInt(__pyx_t_9, __pyx_cur_scope->__pyx_v_alt, sizeof(int), PyInt_FromLong); if (!__pyx_t_10) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 956; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_10 = __Pyx_GetItemInt(__pyx_t_9, __pyx_cur_scope->__pyx_v_alt, sizeof(int), PyInt_FromLong); if (!__pyx_t_10) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 960; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_10);
       __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
-      __pyx_t_9 = __Pyx_GetItemInt(__pyx_t_10, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_9) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 956; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_9 = __Pyx_GetItemInt(__pyx_t_10, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_9) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 960; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_9);
       __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-      __pyx_t_10 = PyInt_FromLong(__pyx_v_3_sa_EPSILON); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 956; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_10 = PyInt_FromLong(__pyx_v_3_sa_EPSILON); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 960; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_10);
-      __pyx_t_3 = PyObject_RichCompare(__pyx_t_9, __pyx_t_10, Py_NE); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 956; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = PyObject_RichCompare(__pyx_t_9, __pyx_t_10, Py_NE); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 960; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
       __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-      __pyx_t_8 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_8 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 956; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_8 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 960; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       if (__pyx_t_8) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":957
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":961
  *             for alt in range(0, len(fwords[i])):
  *                 if fwords[i][alt][0] != EPSILON:
  *                     frontier.append((i-self.min_gap_size, i, alt, self.min_gap_size, xroot, (x1,), True))             # <<<<<<<<<<<<<<
  * 
  *         next_states = []
  */
-        __pyx_t_3 = PyInt_FromLong((__pyx_cur_scope->__pyx_v_i - __pyx_cur_scope->__pyx_v_self->min_gap_size)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 957; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_3 = PyInt_FromLong((__pyx_cur_scope->__pyx_v_i - __pyx_cur_scope->__pyx_v_self->min_gap_size)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 961; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_3);
-        __pyx_t_10 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 957; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_10 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 961; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_10);
-        __pyx_t_9 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_alt); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 957; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_9 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_alt); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 961; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_9);
-        __pyx_t_2 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_self->min_gap_size); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 957; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_2 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_self->min_gap_size); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 961; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_2);
-        __pyx_t_7 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_x1); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 957; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_7 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_x1); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 961; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_7);
-        __pyx_t_12 = PyTuple_New(1); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 957; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_12 = PyTuple_New(1); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 961; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_12);
         PyTuple_SET_ITEM(__pyx_t_12, 0, __pyx_t_7);
         __Pyx_GIVEREF(__pyx_t_7);
         __pyx_t_7 = 0;
-        __pyx_t_7 = __Pyx_PyBool_FromLong(1); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 957; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_7 = __Pyx_PyBool_FromLong(1); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 961; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_7);
-        __pyx_t_13 = PyTuple_New(7); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 957; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_13 = PyTuple_New(7); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 961; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_13);
         PyTuple_SET_ITEM(__pyx_t_13, 0, __pyx_t_3);
         __Pyx_GIVEREF(__pyx_t_3);
@@ -44916,7 +46824,7 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
         __pyx_t_2 = 0;
         __pyx_t_12 = 0;
         __pyx_t_7 = 0;
-        __pyx_t_11 = PyList_Append(__pyx_cur_scope->__pyx_v_frontier, ((PyObject *)__pyx_t_13)); if (unlikely(__pyx_t_11 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 957; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_11 = PyList_Append(__pyx_cur_scope->__pyx_v_frontier, ((PyObject *)__pyx_t_13)); if (unlikely(__pyx_t_11 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 961; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(((PyObject *)__pyx_t_13)); __pyx_t_13 = 0;
         goto __pyx_L14;
       }
@@ -44924,44 +46832,44 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
     }
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":959
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":963
  *                     frontier.append((i-self.min_gap_size, i, alt, self.min_gap_size, xroot, (x1,), True))
  * 
  *         next_states = []             # <<<<<<<<<<<<<<
  *         for i in range(len(fwords)):
  *             next_states.append(self.get_next_states(fwords,i,self.min_gap_size))
  */
-  __pyx_t_13 = PyList_New(0); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 959; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_13 = PyList_New(0); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 963; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_13);
   __Pyx_GIVEREF(((PyObject *)__pyx_t_13));
   __pyx_cur_scope->__pyx_v_next_states = __pyx_t_13;
   __pyx_t_13 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":960
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":964
  * 
  *         next_states = []
  *         for i in range(len(fwords)):             # <<<<<<<<<<<<<<
  *             next_states.append(self.get_next_states(fwords,i,self.min_gap_size))
  * 
  */
-  __pyx_t_1 = PyObject_Length(__pyx_cur_scope->__pyx_v_fwords); if (unlikely(__pyx_t_1 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 960; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Length(__pyx_cur_scope->__pyx_v_fwords); if (unlikely(__pyx_t_1 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 964; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   for (__pyx_t_4 = 0; __pyx_t_4 < __pyx_t_1; __pyx_t_4+=1) {
     __pyx_cur_scope->__pyx_v_i = __pyx_t_4;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":961
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":965
  *         next_states = []
  *         for i in range(len(fwords)):
  *             next_states.append(self.get_next_states(fwords,i,self.min_gap_size))             # <<<<<<<<<<<<<<
  * 
  *         while len(frontier) > 0:
  */
-    __pyx_t_13 = PyObject_GetAttr(((PyObject *)__pyx_cur_scope->__pyx_v_self), __pyx_n_s__get_next_states); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 961; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_13 = PyObject_GetAttr(((PyObject *)__pyx_cur_scope->__pyx_v_self), __pyx_n_s__get_next_states); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 965; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_13);
-    __pyx_t_7 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 961; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_7 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 965; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_7);
-    __pyx_t_12 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_self->min_gap_size); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 961; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_12 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_self->min_gap_size); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 965; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_12);
-    __pyx_t_2 = PyTuple_New(3); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 961; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyTuple_New(3); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 965; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_INCREF(__pyx_cur_scope->__pyx_v_fwords);
     PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_cur_scope->__pyx_v_fwords);
@@ -44972,15 +46880,15 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
     __Pyx_GIVEREF(__pyx_t_12);
     __pyx_t_7 = 0;
     __pyx_t_12 = 0;
-    __pyx_t_12 = PyObject_Call(__pyx_t_13, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 961; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_12 = PyObject_Call(__pyx_t_13, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 965; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_12);
     __Pyx_DECREF(__pyx_t_13); __pyx_t_13 = 0;
     __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
-    __pyx_t_11 = PyList_Append(__pyx_cur_scope->__pyx_v_next_states, __pyx_t_12); if (unlikely(__pyx_t_11 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 961; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_11 = PyList_Append(__pyx_cur_scope->__pyx_v_next_states, __pyx_t_12); if (unlikely(__pyx_t_11 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 965; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":963
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":967
  *             next_states.append(self.get_next_states(fwords,i,self.min_gap_size))
  * 
  *         while len(frontier) > 0:             # <<<<<<<<<<<<<<
@@ -44988,18 +46896,18 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
  *             for k, i, alt, pathlen, node, prefix, is_shadow_path in frontier:
  */
   while (1) {
-    __pyx_t_1 = PyList_GET_SIZE(((PyObject *)__pyx_cur_scope->__pyx_v_frontier)); if (unlikely(__pyx_t_1 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 963; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyList_GET_SIZE(((PyObject *)__pyx_cur_scope->__pyx_v_frontier)); if (unlikely(__pyx_t_1 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 967; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __pyx_t_8 = (__pyx_t_1 > 0);
     if (!__pyx_t_8) break;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":964
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":968
  * 
  *         while len(frontier) > 0:
  *             new_frontier = []             # <<<<<<<<<<<<<<
  *             for k, i, alt, pathlen, node, prefix, is_shadow_path in frontier:
  *                 word_id = fwords[i][alt][0]
  */
-    __pyx_t_12 = PyList_New(0); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 964; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_12 = PyList_New(0); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 968; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_12);
     __Pyx_XGOTREF(((PyObject *)__pyx_cur_scope->__pyx_v_new_frontier));
     __Pyx_XDECREF(((PyObject *)__pyx_cur_scope->__pyx_v_new_frontier));
@@ -45007,7 +46915,7 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
     __pyx_cur_scope->__pyx_v_new_frontier = __pyx_t_12;
     __pyx_t_12 = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":965
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":969
  *         while len(frontier) > 0:
  *             new_frontier = []
  *             for k, i, alt, pathlen, node, prefix, is_shadow_path in frontier:             # <<<<<<<<<<<<<<
@@ -45020,7 +46928,7 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
       #if CYTHON_COMPILING_IN_CPYTHON
       __pyx_t_2 = PyList_GET_ITEM(__pyx_t_12, __pyx_t_1); __Pyx_INCREF(__pyx_t_2); __pyx_t_1++;
       #else
-      __pyx_t_2 = PySequence_ITEM(__pyx_t_12, __pyx_t_1); __pyx_t_1++; if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 965; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+      __pyx_t_2 = PySequence_ITEM(__pyx_t_12, __pyx_t_1); __pyx_t_1++; if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 969; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
       #endif
       if ((likely(PyTuple_CheckExact(__pyx_t_2))) || (PyList_CheckExact(__pyx_t_2))) {
         PyObject* sequence = __pyx_t_2;
@@ -45032,7 +46940,7 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
         if (unlikely(size != 7)) {
           if (size > 7) __Pyx_RaiseTooManyValuesError(7);
           else if (size >= 0) __Pyx_RaiseNeedMoreValuesError(size);
-          {__pyx_filename = __pyx_f[8]; __pyx_lineno = 965; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          {__pyx_filename = __pyx_f[8]; __pyx_lineno = 969; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         }
         #if CYTHON_COMPILING_IN_CPYTHON
         if (likely(PyTuple_CheckExact(sequence))) {
@@ -45063,7 +46971,7 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
         Py_ssize_t i;
         PyObject** temps[7] = {&__pyx_t_13,&__pyx_t_7,&__pyx_t_9,&__pyx_t_10,&__pyx_t_3,&__pyx_t_14,&__pyx_t_15};
         for (i=0; i < 7; i++) {
-          PyObject* item = PySequence_ITEM(sequence, i); if (unlikely(!item)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 965; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          PyObject* item = PySequence_ITEM(sequence, i); if (unlikely(!item)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 969; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           *(temps[i]) = item;
         }
         #endif
@@ -45072,7 +46980,7 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
       {
         Py_ssize_t index = -1;
         PyObject** temps[7] = {&__pyx_t_13,&__pyx_t_7,&__pyx_t_9,&__pyx_t_10,&__pyx_t_3,&__pyx_t_14,&__pyx_t_15};
-        __pyx_t_16 = PyObject_GetIter(__pyx_t_2); if (unlikely(!__pyx_t_16)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 965; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_16 = PyObject_GetIter(__pyx_t_2); if (unlikely(!__pyx_t_16)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 969; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_16);
         __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
         __pyx_t_17 = Py_TYPE(__pyx_t_16)->tp_iternext;
@@ -45081,7 +46989,7 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
           __Pyx_GOTREF(item);
           *(temps[index]) = item;
         }
-        if (__Pyx_IternextUnpackEndCheck(__pyx_t_17(__pyx_t_16), 7) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 965; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        if (__Pyx_IternextUnpackEndCheck(__pyx_t_17(__pyx_t_16), 7) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 969; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __pyx_t_17 = NULL;
         __Pyx_DECREF(__pyx_t_16); __pyx_t_16 = 0;
         goto __pyx_L22_unpacking_done;
@@ -45089,14 +46997,14 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
         __Pyx_DECREF(__pyx_t_16); __pyx_t_16 = 0;
         __pyx_t_17 = NULL;
         if (__Pyx_IterFinish() == 0) __Pyx_RaiseNeedMoreValuesError(index);
-        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 965; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 969; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __pyx_L22_unpacking_done:;
       }
-      __pyx_t_4 = __Pyx_PyInt_AsInt(__pyx_t_13); if (unlikely((__pyx_t_4 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 965; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = __Pyx_PyInt_AsInt(__pyx_t_13); if (unlikely((__pyx_t_4 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 969; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_13); __pyx_t_13 = 0;
-      __pyx_t_6 = __Pyx_PyInt_AsInt(__pyx_t_7); if (unlikely((__pyx_t_6 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 965; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = __Pyx_PyInt_AsInt(__pyx_t_7); if (unlikely((__pyx_t_6 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 969; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-      __pyx_t_18 = __Pyx_PyInt_AsInt(__pyx_t_9); if (unlikely((__pyx_t_18 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 965; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_18 = __Pyx_PyInt_AsInt(__pyx_t_9); if (unlikely((__pyx_t_18 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 969; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
       __pyx_cur_scope->__pyx_v_k = __pyx_t_4;
       __pyx_cur_scope->__pyx_v_i = __pyx_t_6;
@@ -45122,19 +47030,19 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
       __pyx_cur_scope->__pyx_v_is_shadow_path = __pyx_t_15;
       __pyx_t_15 = 0;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":966
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":970
  *             new_frontier = []
  *             for k, i, alt, pathlen, node, prefix, is_shadow_path in frontier:
  *                 word_id = fwords[i][alt][0]             # <<<<<<<<<<<<<<
  *                 spanlen = fwords[i][alt][2]
  *                 # TODO get rid of k -- pathlen is replacing it
  */
-      __pyx_t_2 = __Pyx_GetItemInt(__pyx_cur_scope->__pyx_v_fwords, __pyx_cur_scope->__pyx_v_i, sizeof(int), PyInt_FromLong); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 966; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = __Pyx_GetItemInt(__pyx_cur_scope->__pyx_v_fwords, __pyx_cur_scope->__pyx_v_i, sizeof(int), PyInt_FromLong); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 970; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_15 = __Pyx_GetItemInt(__pyx_t_2, __pyx_cur_scope->__pyx_v_alt, sizeof(int), PyInt_FromLong); if (!__pyx_t_15) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 966; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_15 = __Pyx_GetItemInt(__pyx_t_2, __pyx_cur_scope->__pyx_v_alt, sizeof(int), PyInt_FromLong); if (!__pyx_t_15) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 970; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_15);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-      __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_15, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 966; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_15, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 970; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
       __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_word_id);
@@ -45143,19 +47051,19 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
       __pyx_cur_scope->__pyx_v_word_id = __pyx_t_2;
       __pyx_t_2 = 0;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":967
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":971
  *             for k, i, alt, pathlen, node, prefix, is_shadow_path in frontier:
  *                 word_id = fwords[i][alt][0]
  *                 spanlen = fwords[i][alt][2]             # <<<<<<<<<<<<<<
  *                 # TODO get rid of k -- pathlen is replacing it
  *                 if word_id == EPSILON:
  */
-      __pyx_t_2 = __Pyx_GetItemInt(__pyx_cur_scope->__pyx_v_fwords, __pyx_cur_scope->__pyx_v_i, sizeof(int), PyInt_FromLong); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 967; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = __Pyx_GetItemInt(__pyx_cur_scope->__pyx_v_fwords, __pyx_cur_scope->__pyx_v_i, sizeof(int), PyInt_FromLong); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 971; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_15 = __Pyx_GetItemInt(__pyx_t_2, __pyx_cur_scope->__pyx_v_alt, sizeof(int), PyInt_FromLong); if (!__pyx_t_15) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 967; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_15 = __Pyx_GetItemInt(__pyx_t_2, __pyx_cur_scope->__pyx_v_alt, sizeof(int), PyInt_FromLong); if (!__pyx_t_15) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 971; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_15);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-      __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_15, 2, sizeof(long), PyInt_FromLong); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 967; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_15, 2, sizeof(long), PyInt_FromLong); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 971; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
       __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_spanlen);
@@ -45164,46 +47072,46 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
       __pyx_cur_scope->__pyx_v_spanlen = __pyx_t_2;
       __pyx_t_2 = 0;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":969
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":973
  *                 spanlen = fwords[i][alt][2]
  *                 # TODO get rid of k -- pathlen is replacing it
  *                 if word_id == EPSILON:             # <<<<<<<<<<<<<<
  *                     # skipping because word_id is epsilon
  *                     if i+spanlen >= len(fwords):
  */
-      __pyx_t_2 = PyInt_FromLong(__pyx_v_3_sa_EPSILON); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 969; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyInt_FromLong(__pyx_v_3_sa_EPSILON); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 973; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_15 = PyObject_RichCompare(__pyx_cur_scope->__pyx_v_word_id, __pyx_t_2, Py_EQ); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 969; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_15 = PyObject_RichCompare(__pyx_cur_scope->__pyx_v_word_id, __pyx_t_2, Py_EQ); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 973; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_15);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-      __pyx_t_8 = __Pyx_PyObject_IsTrue(__pyx_t_15); if (unlikely(__pyx_t_8 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 969; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = __Pyx_PyObject_IsTrue(__pyx_t_15); if (unlikely(__pyx_t_8 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 973; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
       if (__pyx_t_8) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":971
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":975
  *                 if word_id == EPSILON:
  *                     # skipping because word_id is epsilon
  *                     if i+spanlen >= len(fwords):             # <<<<<<<<<<<<<<
  *                         continue
  *                     for nualt in range(0,len(fwords[i+spanlen])):
  */
-        __pyx_t_15 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 971; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_15 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 975; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_15);
-        __pyx_t_2 = PyNumber_Add(__pyx_t_15, __pyx_cur_scope->__pyx_v_spanlen); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 971; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_2 = PyNumber_Add(__pyx_t_15, __pyx_cur_scope->__pyx_v_spanlen); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 975; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_2);
         __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
-        __pyx_t_5 = PyObject_Length(__pyx_cur_scope->__pyx_v_fwords); if (unlikely(__pyx_t_5 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 971; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __pyx_t_15 = PyInt_FromSsize_t(__pyx_t_5); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 971; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_5 = PyObject_Length(__pyx_cur_scope->__pyx_v_fwords); if (unlikely(__pyx_t_5 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 975; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_15 = PyInt_FromSsize_t(__pyx_t_5); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 975; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_15);
-        __pyx_t_14 = PyObject_RichCompare(__pyx_t_2, __pyx_t_15, Py_GE); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 971; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_14 = PyObject_RichCompare(__pyx_t_2, __pyx_t_15, Py_GE); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 975; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_14);
         __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
         __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
-        __pyx_t_8 = __Pyx_PyObject_IsTrue(__pyx_t_14); if (unlikely(__pyx_t_8 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 971; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_8 = __Pyx_PyObject_IsTrue(__pyx_t_14); if (unlikely(__pyx_t_8 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 975; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(__pyx_t_14); __pyx_t_14 = 0;
         if (__pyx_t_8) {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":972
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":976
  *                     # skipping because word_id is epsilon
  *                     if i+spanlen >= len(fwords):
  *                         continue             # <<<<<<<<<<<<<<
@@ -45215,43 +47123,43 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
         }
         __pyx_L24:;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":973
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":977
  *                     if i+spanlen >= len(fwords):
  *                         continue
  *                     for nualt in range(0,len(fwords[i+spanlen])):             # <<<<<<<<<<<<<<
  *                         frontier.append((k, i+spanlen, nualt, pathlen, node, prefix, is_shadow_path))
  *                     continue
  */
-        __pyx_t_14 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 973; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_14 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 977; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_14);
-        __pyx_t_15 = PyNumber_Add(__pyx_t_14, __pyx_cur_scope->__pyx_v_spanlen); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 973; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_15 = PyNumber_Add(__pyx_t_14, __pyx_cur_scope->__pyx_v_spanlen); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 977; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_15);
         __Pyx_DECREF(__pyx_t_14); __pyx_t_14 = 0;
-        __pyx_t_14 = PyObject_GetItem(__pyx_cur_scope->__pyx_v_fwords, __pyx_t_15); if (!__pyx_t_14) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 973; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_14 = PyObject_GetItem(__pyx_cur_scope->__pyx_v_fwords, __pyx_t_15); if (!__pyx_t_14) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 977; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_14);
         __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
-        __pyx_t_5 = PyObject_Length(__pyx_t_14); if (unlikely(__pyx_t_5 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 973; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_5 = PyObject_Length(__pyx_t_14); if (unlikely(__pyx_t_5 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 977; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(__pyx_t_14); __pyx_t_14 = 0;
         for (__pyx_t_18 = 0; __pyx_t_18 < __pyx_t_5; __pyx_t_18+=1) {
           __pyx_cur_scope->__pyx_v_nualt = __pyx_t_18;
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":974
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":978
  *                         continue
  *                     for nualt in range(0,len(fwords[i+spanlen])):
  *                         frontier.append((k, i+spanlen, nualt, pathlen, node, prefix, is_shadow_path))             # <<<<<<<<<<<<<<
  *                     continue
  * 
  */
-          __pyx_t_14 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_k); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 974; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_14 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_k); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 978; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_14);
-          __pyx_t_15 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 974; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_15 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 978; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_15);
-          __pyx_t_2 = PyNumber_Add(__pyx_t_15, __pyx_cur_scope->__pyx_v_spanlen); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 974; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_2 = PyNumber_Add(__pyx_t_15, __pyx_cur_scope->__pyx_v_spanlen); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 978; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_2);
           __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
-          __pyx_t_15 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_nualt); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 974; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_15 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_nualt); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 978; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_15);
-          __pyx_t_3 = PyTuple_New(7); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 974; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_3 = PyTuple_New(7); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 978; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_3);
           PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_14);
           __Pyx_GIVEREF(__pyx_t_14);
@@ -45274,11 +47182,11 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
           __pyx_t_14 = 0;
           __pyx_t_2 = 0;
           __pyx_t_15 = 0;
-          __pyx_t_11 = PyList_Append(__pyx_cur_scope->__pyx_v_frontier, ((PyObject *)__pyx_t_3)); if (unlikely(__pyx_t_11 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 974; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_11 = PyList_Append(__pyx_cur_scope->__pyx_v_frontier, ((PyObject *)__pyx_t_3)); if (unlikely(__pyx_t_11 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 978; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
         }
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":975
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":979
  *                     for nualt in range(0,len(fwords[i+spanlen])):
  *                         frontier.append((k, i+spanlen, nualt, pathlen, node, prefix, is_shadow_path))
  *                     continue             # <<<<<<<<<<<<<<
@@ -45290,19 +47198,19 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
       }
       __pyx_L23:;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":977
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":981
  *                     continue
  * 
  *                 phrase = prefix + (word_id,)             # <<<<<<<<<<<<<<
  *                 hiero_phrase = Phrase(phrase)
  *                 arity = hiero_phrase.arity()
  */
-      __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 977; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 981; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_INCREF(__pyx_cur_scope->__pyx_v_word_id);
       PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_cur_scope->__pyx_v_word_id);
       __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_word_id);
-      __pyx_t_15 = PyNumber_Add(__pyx_cur_scope->__pyx_v_prefix, ((PyObject *)__pyx_t_3)); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 977; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_15 = PyNumber_Add(__pyx_cur_scope->__pyx_v_prefix, ((PyObject *)__pyx_t_3)); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 981; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_15);
       __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
       __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_phrase);
@@ -45311,19 +47219,19 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
       __pyx_cur_scope->__pyx_v_phrase = __pyx_t_15;
       __pyx_t_15 = 0;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":978
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":982
  * 
  *                 phrase = prefix + (word_id,)
  *                 hiero_phrase = Phrase(phrase)             # <<<<<<<<<<<<<<
  *                 arity = hiero_phrase.arity()
  * 
  */
-      __pyx_t_15 = PyTuple_New(1); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 978; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_15 = PyTuple_New(1); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 982; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_15);
       __Pyx_INCREF(__pyx_cur_scope->__pyx_v_phrase);
       PyTuple_SET_ITEM(__pyx_t_15, 0, __pyx_cur_scope->__pyx_v_phrase);
       __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_phrase);
-      __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_Phrase)), ((PyObject *)__pyx_t_15), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 978; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_Phrase)), ((PyObject *)__pyx_t_15), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 982; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_DECREF(((PyObject *)__pyx_t_15)); __pyx_t_15 = 0;
       __Pyx_XGOTREF(((PyObject *)__pyx_cur_scope->__pyx_v_hiero_phrase));
@@ -45332,23 +47240,23 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
       __pyx_cur_scope->__pyx_v_hiero_phrase = ((struct __pyx_obj_3_sa_Phrase *)__pyx_t_3);
       __pyx_t_3 = 0;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":979
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":983
  *                 phrase = prefix + (word_id,)
  *                 hiero_phrase = Phrase(phrase)
  *                 arity = hiero_phrase.arity()             # <<<<<<<<<<<<<<
  * 
  *                 lookup_required = False
  */
-      __pyx_t_3 = PyObject_GetAttr(((PyObject *)__pyx_cur_scope->__pyx_v_hiero_phrase), __pyx_n_s__arity); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 979; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = PyObject_GetAttr(((PyObject *)__pyx_cur_scope->__pyx_v_hiero_phrase), __pyx_n_s__arity); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 983; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
-      __pyx_t_15 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 979; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_15 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 983; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_15);
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-      __pyx_t_18 = __Pyx_PyInt_AsInt(__pyx_t_15); if (unlikely((__pyx_t_18 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 979; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_18 = __Pyx_PyInt_AsInt(__pyx_t_15); if (unlikely((__pyx_t_18 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 983; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
       __pyx_cur_scope->__pyx_v_arity = __pyx_t_18;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":981
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":985
  *                 arity = hiero_phrase.arity()
  * 
  *                 lookup_required = False             # <<<<<<<<<<<<<<
@@ -45357,36 +47265,36 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
  */
       __pyx_cur_scope->__pyx_v_lookup_required = 0;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":982
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":986
  * 
  *                 lookup_required = False
  *                 if word_id in node.children:             # <<<<<<<<<<<<<<
  *                     if node.children[word_id] is None:
  *                         # Path dead-ends at this node
  */
-      __pyx_t_15 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__children); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 982; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_15 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__children); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 986; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_15);
-      __pyx_t_8 = ((PySequence_Contains(__pyx_t_15, __pyx_cur_scope->__pyx_v_word_id))); if (unlikely(__pyx_t_8 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 982; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = ((PySequence_Contains(__pyx_t_15, __pyx_cur_scope->__pyx_v_word_id))); if (unlikely(__pyx_t_8 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 986; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
       if (__pyx_t_8) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":983
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":987
  *                 lookup_required = False
  *                 if word_id in node.children:
  *                     if node.children[word_id] is None:             # <<<<<<<<<<<<<<
  *                         # Path dead-ends at this node
  *                         continue
  */
-        __pyx_t_15 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__children); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 983; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_15 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__children); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 987; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_15);
-        __pyx_t_3 = PyObject_GetItem(__pyx_t_15, __pyx_cur_scope->__pyx_v_word_id); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 983; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_3 = PyObject_GetItem(__pyx_t_15, __pyx_cur_scope->__pyx_v_word_id); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 987; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_3);
         __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
         __pyx_t_8 = (__pyx_t_3 == Py_None);
         __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
         if (__pyx_t_8) {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":985
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":989
  *                     if node.children[word_id] is None:
  *                         # Path dead-ends at this node
  *                         continue             # <<<<<<<<<<<<<<
@@ -45398,16 +47306,16 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
         }
         /*else*/ {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":988
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":992
  *                     else:
  *                         # Path continues at this node
  *                         node = node.children[word_id]             # <<<<<<<<<<<<<<
  *                 else:
  *                     if node.suffix_link is None:
  */
-          __pyx_t_3 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__children); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 988; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_3 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__children); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 992; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_3);
-          __pyx_t_15 = PyObject_GetItem(__pyx_t_3, __pyx_cur_scope->__pyx_v_word_id); if (!__pyx_t_15) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 988; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_15 = PyObject_GetItem(__pyx_t_3, __pyx_cur_scope->__pyx_v_word_id); if (!__pyx_t_15) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 992; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_15);
           __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
           __Pyx_GOTREF(__pyx_cur_scope->__pyx_v_node);
@@ -45421,20 +47329,20 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
       }
       /*else*/ {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":990
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":994
  *                         node = node.children[word_id]
  *                 else:
  *                     if node.suffix_link is None:             # <<<<<<<<<<<<<<
  *                         # Current node is root; lookup required
  *                         lookup_required = True
  */
-        __pyx_t_15 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__suffix_link); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 990; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_15 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__suffix_link); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 994; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_15);
         __pyx_t_8 = (__pyx_t_15 == Py_None);
         __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
         if (__pyx_t_8) {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":992
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":996
  *                     if node.suffix_link is None:
  *                         # Current node is root; lookup required
  *                         lookup_required = True             # <<<<<<<<<<<<<<
@@ -45446,54 +47354,54 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
         }
         /*else*/ {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":994
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":998
  *                         lookup_required = True
  *                     else:
  *                         if word_id in node.suffix_link.children:             # <<<<<<<<<<<<<<
  *                             if node.suffix_link.children[word_id] is None:
  *                                 # Suffix link reports path is dead end
  */
-          __pyx_t_15 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__suffix_link); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 994; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_15 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__suffix_link); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 998; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_15);
-          __pyx_t_3 = PyObject_GetAttr(__pyx_t_15, __pyx_n_s__children); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 994; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_3 = PyObject_GetAttr(__pyx_t_15, __pyx_n_s__children); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 998; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_3);
           __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
-          __pyx_t_8 = ((PySequence_Contains(__pyx_t_3, __pyx_cur_scope->__pyx_v_word_id))); if (unlikely(__pyx_t_8 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 994; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_8 = ((PySequence_Contains(__pyx_t_3, __pyx_cur_scope->__pyx_v_word_id))); if (unlikely(__pyx_t_8 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 998; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
           if (__pyx_t_8) {
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":995
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":999
  *                     else:
  *                         if word_id in node.suffix_link.children:
  *                             if node.suffix_link.children[word_id] is None:             # <<<<<<<<<<<<<<
  *                                 # Suffix link reports path is dead end
  *                                 node.children[word_id] = None
  */
-            __pyx_t_3 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__suffix_link); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 995; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_3 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__suffix_link); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 999; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_3);
-            __pyx_t_15 = PyObject_GetAttr(__pyx_t_3, __pyx_n_s__children); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 995; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_15 = PyObject_GetAttr(__pyx_t_3, __pyx_n_s__children); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 999; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_15);
             __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-            __pyx_t_3 = PyObject_GetItem(__pyx_t_15, __pyx_cur_scope->__pyx_v_word_id); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 995; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_3 = PyObject_GetItem(__pyx_t_15, __pyx_cur_scope->__pyx_v_word_id); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 999; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_3);
             __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
             __pyx_t_8 = (__pyx_t_3 == Py_None);
             __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
             if (__pyx_t_8) {
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":997
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1001
  *                             if node.suffix_link.children[word_id] is None:
  *                                 # Suffix link reports path is dead end
  *                                 node.children[word_id] = None             # <<<<<<<<<<<<<<
  *                                 continue
  *                             else:
  */
-              __pyx_t_3 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__children); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 997; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_3 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__children); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1001; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_3);
-              if (PyObject_SetItem(__pyx_t_3, __pyx_cur_scope->__pyx_v_word_id, Py_None) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 997; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              if (PyObject_SetItem(__pyx_t_3, __pyx_cur_scope->__pyx_v_word_id, Py_None) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1001; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":998
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1002
  *                                 # Suffix link reports path is dead end
  *                                 node.children[word_id] = None
  *                                 continue             # <<<<<<<<<<<<<<
@@ -45505,7 +47413,7 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
             }
             /*else*/ {
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1001
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1005
  *                             else:
  *                                 # Suffix link indicates lookup is reqired
  *                                 lookup_required = True             # <<<<<<<<<<<<<<
@@ -45519,18 +47427,18 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
           }
           /*else*/ {
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1004
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1008
  *                         else:
  *                             #ERROR: We never get here
  *                             raise Exception("Keyword trie error")             # <<<<<<<<<<<<<<
  *                 # checking whether lookup_required
  *                 if lookup_required:
  */
-            __pyx_t_3 = PyObject_Call(__pyx_builtin_Exception, ((PyObject *)__pyx_k_tuple_122), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1004; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_3 = PyObject_Call(__pyx_builtin_Exception, ((PyObject *)__pyx_k_tuple_124), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1008; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_3);
             __Pyx_Raise(__pyx_t_3, 0, 0, 0);
             __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-            {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1004; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1008; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           }
           __pyx_L30:;
         }
@@ -45538,7 +47446,7 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
       }
       __pyx_L27:;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1006
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1010
  *                             raise Exception("Keyword trie error")
  *                 # checking whether lookup_required
  *                 if lookup_required:             # <<<<<<<<<<<<<<
@@ -45547,7 +47455,7 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
  */
       if (__pyx_cur_scope->__pyx_v_lookup_required) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1007
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1011
  *                 # checking whether lookup_required
  *                 if lookup_required:
  *                     new_node = None             # <<<<<<<<<<<<<<
@@ -45560,66 +47468,66 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
         __Pyx_GIVEREF(Py_None);
         __pyx_cur_scope->__pyx_v_new_node = Py_None;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1008
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1012
  *                 if lookup_required:
  *                     new_node = None
  *                     if is_shadow_path:             # <<<<<<<<<<<<<<
  *                         # Extending shadow path
  *                         # on the shadow path we don't do any search, we just use info from suffix link
  */
-        __pyx_t_8 = __Pyx_PyObject_IsTrue(__pyx_cur_scope->__pyx_v_is_shadow_path); if (unlikely(__pyx_t_8 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1008; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_8 = __Pyx_PyObject_IsTrue(__pyx_cur_scope->__pyx_v_is_shadow_path); if (unlikely(__pyx_t_8 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1012; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         if (__pyx_t_8) {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1011
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1015
  *                         # Extending shadow path
  *                         # on the shadow path we don't do any search, we just use info from suffix link
  *                         new_node = ExtendedTrieNode(phrase_location=node.suffix_link.children[word_id].phrase_location,             # <<<<<<<<<<<<<<
  *                                 suffix_link=node.suffix_link.children[word_id],
  *                                 phrase=hiero_phrase)
  */
-          __pyx_t_3 = PyDict_New(); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1011; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_3 = PyDict_New(); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1015; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(((PyObject *)__pyx_t_3));
-          __pyx_t_15 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__suffix_link); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1011; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_15 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__suffix_link); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1015; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_15);
-          __pyx_t_2 = PyObject_GetAttr(__pyx_t_15, __pyx_n_s__children); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1011; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_2 = PyObject_GetAttr(__pyx_t_15, __pyx_n_s__children); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1015; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_2);
           __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
-          __pyx_t_15 = PyObject_GetItem(__pyx_t_2, __pyx_cur_scope->__pyx_v_word_id); if (!__pyx_t_15) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1011; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_15 = PyObject_GetItem(__pyx_t_2, __pyx_cur_scope->__pyx_v_word_id); if (!__pyx_t_15) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1015; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_15);
           __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-          __pyx_t_2 = PyObject_GetAttr(__pyx_t_15, __pyx_n_s__phrase_location); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1011; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_2 = PyObject_GetAttr(__pyx_t_15, __pyx_n_s__phrase_location); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1015; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_2);
           __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
-          if (PyDict_SetItem(__pyx_t_3, ((PyObject *)__pyx_n_s__phrase_location), __pyx_t_2) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1011; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          if (PyDict_SetItem(__pyx_t_3, ((PyObject *)__pyx_n_s__phrase_location), __pyx_t_2) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1015; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1012
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1016
  *                         # on the shadow path we don't do any search, we just use info from suffix link
  *                         new_node = ExtendedTrieNode(phrase_location=node.suffix_link.children[word_id].phrase_location,
  *                                 suffix_link=node.suffix_link.children[word_id],             # <<<<<<<<<<<<<<
  *                                 phrase=hiero_phrase)
  *                     else:
  */
-          __pyx_t_2 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__suffix_link); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1012; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_2 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__suffix_link); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1016; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_2);
-          __pyx_t_15 = PyObject_GetAttr(__pyx_t_2, __pyx_n_s__children); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1012; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_15 = PyObject_GetAttr(__pyx_t_2, __pyx_n_s__children); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1016; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_15);
           __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-          __pyx_t_2 = PyObject_GetItem(__pyx_t_15, __pyx_cur_scope->__pyx_v_word_id); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1012; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_2 = PyObject_GetItem(__pyx_t_15, __pyx_cur_scope->__pyx_v_word_id); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1016; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_2);
           __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
-          if (PyDict_SetItem(__pyx_t_3, ((PyObject *)__pyx_n_s__suffix_link), __pyx_t_2) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1011; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          if (PyDict_SetItem(__pyx_t_3, ((PyObject *)__pyx_n_s__suffix_link), __pyx_t_2) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1015; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1013
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1017
  *                         new_node = ExtendedTrieNode(phrase_location=node.suffix_link.children[word_id].phrase_location,
  *                                 suffix_link=node.suffix_link.children[word_id],
  *                                 phrase=hiero_phrase)             # <<<<<<<<<<<<<<
  *                     else:
  *                         if arity > 0:
  */
-          if (PyDict_SetItem(__pyx_t_3, ((PyObject *)__pyx_n_s__phrase), ((PyObject *)__pyx_cur_scope->__pyx_v_hiero_phrase)) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1011; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-          __pyx_t_2 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_ExtendedTrieNode)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_3)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1011; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          if (PyDict_SetItem(__pyx_t_3, ((PyObject *)__pyx_n_s__phrase), ((PyObject *)__pyx_cur_scope->__pyx_v_hiero_phrase)) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1015; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_2 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_ExtendedTrieNode)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_3)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1015; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_2);
           __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
           __Pyx_GOTREF(__pyx_cur_scope->__pyx_v_new_node);
@@ -45631,7 +47539,7 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
         }
         /*else*/ {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1015
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1019
  *                                 phrase=hiero_phrase)
  *                     else:
  *                         if arity > 0:             # <<<<<<<<<<<<<<
@@ -45641,22 +47549,22 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
           __pyx_t_8 = (__pyx_cur_scope->__pyx_v_arity > 0);
           if (__pyx_t_8) {
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1017
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1021
  *                         if arity > 0:
  *                             # Intersecting because of arity > 0
  *                             phrase_location = self.intersect(node, node.suffix_link.children[word_id], hiero_phrase)             # <<<<<<<<<<<<<<
  *                         else:
  *                             # Suffix array search
  */
-            __pyx_t_2 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__suffix_link); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1017; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_2 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__suffix_link); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1021; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_2);
-            __pyx_t_3 = PyObject_GetAttr(__pyx_t_2, __pyx_n_s__children); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1017; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_3 = PyObject_GetAttr(__pyx_t_2, __pyx_n_s__children); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1021; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_3);
             __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-            __pyx_t_2 = PyObject_GetItem(__pyx_t_3, __pyx_cur_scope->__pyx_v_word_id); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1017; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_2 = PyObject_GetItem(__pyx_t_3, __pyx_cur_scope->__pyx_v_word_id); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1021; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_2);
             __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-            __pyx_t_3 = ((PyObject *)((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_cur_scope->__pyx_v_self->__pyx_vtab)->intersect(__pyx_cur_scope->__pyx_v_self, __pyx_cur_scope->__pyx_v_node, __pyx_t_2, __pyx_cur_scope->__pyx_v_hiero_phrase)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1017; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_3 = ((PyObject *)((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_cur_scope->__pyx_v_self->__pyx_vtab)->intersect(__pyx_cur_scope->__pyx_v_self, __pyx_cur_scope->__pyx_v_node, __pyx_t_2, __pyx_cur_scope->__pyx_v_hiero_phrase)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1021; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_3);
             __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
             __Pyx_XGOTREF(((PyObject *)__pyx_cur_scope->__pyx_v_phrase_location));
@@ -45668,45 +47576,45 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
           }
           /*else*/ {
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1020
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1024
  *                         else:
  *                             # Suffix array search
  *                             phrase_location = node.phrase_location             # <<<<<<<<<<<<<<
  *                             sa_range = self.fsa.lookup(sym_tostring(phrase[-1]), len(phrase)-1, phrase_location.sa_low, phrase_location.sa_high)
  *                             if sa_range is not None:
  */
-            __pyx_t_3 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__phrase_location); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1020; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_3 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__phrase_location); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1024; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_3);
-            if (!(likely(((__pyx_t_3) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_3, __pyx_ptype_3_sa_PhraseLocation))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1020; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            if (!(likely(((__pyx_t_3) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_3, __pyx_ptype_3_sa_PhraseLocation))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1024; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_XGOTREF(((PyObject *)__pyx_cur_scope->__pyx_v_phrase_location));
             __Pyx_XDECREF(((PyObject *)__pyx_cur_scope->__pyx_v_phrase_location));
             __Pyx_GIVEREF(__pyx_t_3);
             __pyx_cur_scope->__pyx_v_phrase_location = ((struct __pyx_obj_3_sa_PhraseLocation *)__pyx_t_3);
             __pyx_t_3 = 0;
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1021
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1025
  *                             # Suffix array search
  *                             phrase_location = node.phrase_location
  *                             sa_range = self.fsa.lookup(sym_tostring(phrase[-1]), len(phrase)-1, phrase_location.sa_low, phrase_location.sa_high)             # <<<<<<<<<<<<<<
  *                             if sa_range is not None:
  *                                 phrase_location = PhraseLocation(sa_low=sa_range[0], sa_high=sa_range[1])
  */
-            __pyx_t_3 = PyObject_GetAttr(((PyObject *)__pyx_cur_scope->__pyx_v_self->fsa), __pyx_n_s__lookup); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1021; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_3 = PyObject_GetAttr(((PyObject *)__pyx_cur_scope->__pyx_v_self->fsa), __pyx_n_s__lookup); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1025; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_3);
-            __pyx_t_2 = __Pyx_GetItemInt(__pyx_cur_scope->__pyx_v_phrase, -1, sizeof(long), PyInt_FromLong); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1021; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_2 = __Pyx_GetItemInt(__pyx_cur_scope->__pyx_v_phrase, -1, sizeof(long), PyInt_FromLong); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1025; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_2);
-            __pyx_t_18 = __Pyx_PyInt_AsInt(__pyx_t_2); if (unlikely((__pyx_t_18 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1021; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_18 = __Pyx_PyInt_AsInt(__pyx_t_2); if (unlikely((__pyx_t_18 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1025; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-            __pyx_t_2 = PyBytes_FromString(__pyx_f_3_sa_sym_tostring(__pyx_t_18)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1021; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_2 = PyBytes_FromString(__pyx_f_3_sa_sym_tostring(__pyx_t_18)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1025; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(((PyObject *)__pyx_t_2));
-            __pyx_t_5 = PyObject_Length(__pyx_cur_scope->__pyx_v_phrase); if (unlikely(__pyx_t_5 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1021; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-            __pyx_t_15 = PyInt_FromSsize_t((__pyx_t_5 - 1)); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1021; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_5 = PyObject_Length(__pyx_cur_scope->__pyx_v_phrase); if (unlikely(__pyx_t_5 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1025; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_15 = PyInt_FromSsize_t((__pyx_t_5 - 1)); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1025; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_15);
-            __pyx_t_14 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_phrase_location->sa_low); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1021; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_14 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_phrase_location->sa_low); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1025; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_14);
-            __pyx_t_10 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_phrase_location->sa_high); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1021; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_10 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_phrase_location->sa_high); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1025; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_10);
-            __pyx_t_9 = PyTuple_New(4); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1021; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_9 = PyTuple_New(4); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1025; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_9);
             PyTuple_SET_ITEM(__pyx_t_9, 0, ((PyObject *)__pyx_t_2));
             __Pyx_GIVEREF(((PyObject *)__pyx_t_2));
@@ -45720,7 +47628,7 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
             __pyx_t_15 = 0;
             __pyx_t_14 = 0;
             __pyx_t_10 = 0;
-            __pyx_t_10 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_9), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1021; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_10 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_9), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1025; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_10);
             __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
             __Pyx_DECREF(((PyObject *)__pyx_t_9)); __pyx_t_9 = 0;
@@ -45730,7 +47638,7 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
             __pyx_cur_scope->__pyx_v_sa_range = __pyx_t_10;
             __pyx_t_10 = 0;
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1022
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1026
  *                             phrase_location = node.phrase_location
  *                             sa_range = self.fsa.lookup(sym_tostring(phrase[-1]), len(phrase)-1, phrase_location.sa_low, phrase_location.sa_high)
  *                             if sa_range is not None:             # <<<<<<<<<<<<<<
@@ -45740,24 +47648,24 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
             __pyx_t_8 = (__pyx_cur_scope->__pyx_v_sa_range != Py_None);
             if (__pyx_t_8) {
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1023
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1027
  *                             sa_range = self.fsa.lookup(sym_tostring(phrase[-1]), len(phrase)-1, phrase_location.sa_low, phrase_location.sa_high)
  *                             if sa_range is not None:
  *                                 phrase_location = PhraseLocation(sa_low=sa_range[0], sa_high=sa_range[1])             # <<<<<<<<<<<<<<
  *                             else:
  *                                 phrase_location = None
  */
-              __pyx_t_10 = PyDict_New(); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1023; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_10 = PyDict_New(); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1027; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(((PyObject *)__pyx_t_10));
-              __pyx_t_9 = __Pyx_GetItemInt(__pyx_cur_scope->__pyx_v_sa_range, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_9) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1023; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_9 = __Pyx_GetItemInt(__pyx_cur_scope->__pyx_v_sa_range, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_9) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1027; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_9);
-              if (PyDict_SetItem(__pyx_t_10, ((PyObject *)__pyx_n_s__sa_low), __pyx_t_9) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1023; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              if (PyDict_SetItem(__pyx_t_10, ((PyObject *)__pyx_n_s__sa_low), __pyx_t_9) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1027; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
-              __pyx_t_9 = __Pyx_GetItemInt(__pyx_cur_scope->__pyx_v_sa_range, 1, sizeof(long), PyInt_FromLong); if (!__pyx_t_9) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1023; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_9 = __Pyx_GetItemInt(__pyx_cur_scope->__pyx_v_sa_range, 1, sizeof(long), PyInt_FromLong); if (!__pyx_t_9) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1027; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_9);
-              if (PyDict_SetItem(__pyx_t_10, ((PyObject *)__pyx_n_s__sa_high), __pyx_t_9) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1023; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              if (PyDict_SetItem(__pyx_t_10, ((PyObject *)__pyx_n_s__sa_high), __pyx_t_9) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1027; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
-              __pyx_t_9 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_PhraseLocation)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_10)); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1023; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_9 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_PhraseLocation)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_10)); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1027; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_9);
               __Pyx_DECREF(((PyObject *)__pyx_t_10)); __pyx_t_10 = 0;
               __Pyx_GOTREF(((PyObject *)__pyx_cur_scope->__pyx_v_phrase_location));
@@ -45769,7 +47677,7 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
             }
             /*else*/ {
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1025
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1029
  *                                 phrase_location = PhraseLocation(sa_low=sa_range[0], sa_high=sa_range[1])
  *                             else:
  *                                 phrase_location = None             # <<<<<<<<<<<<<<
@@ -45786,7 +47694,7 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
           }
           __pyx_L34:;
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1027
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1031
  *                                 phrase_location = None
  * 
  *                         if phrase_location is None:             # <<<<<<<<<<<<<<
@@ -45796,19 +47704,19 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
           __pyx_t_8 = (((PyObject *)__pyx_cur_scope->__pyx_v_phrase_location) == Py_None);
           if (__pyx_t_8) {
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1028
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1032
  * 
  *                         if phrase_location is None:
  *                             node.children[word_id] = None             # <<<<<<<<<<<<<<
  *                             # Search failed
  *                             continue
  */
-            __pyx_t_9 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__children); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1028; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_9 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__children); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1032; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_9);
-            if (PyObject_SetItem(__pyx_t_9, __pyx_cur_scope->__pyx_v_word_id, Py_None) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1028; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            if (PyObject_SetItem(__pyx_t_9, __pyx_cur_scope->__pyx_v_word_id, Py_None) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1032; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1030
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1034
  *                             node.children[word_id] = None
  *                             # Search failed
  *                             continue             # <<<<<<<<<<<<<<
@@ -45820,7 +47728,7 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
           }
           __pyx_L36:;
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1032
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1036
  *                             continue
  *                         # Search succeeded
  *                         suffix_link = self.rules.root             # <<<<<<<<<<<<<<
@@ -45833,32 +47741,32 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
           __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_self->rules->root);
           __pyx_cur_scope->__pyx_v_suffix_link = __pyx_cur_scope->__pyx_v_self->rules->root;
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1033
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1037
  *                         # Search succeeded
  *                         suffix_link = self.rules.root
  *                         if node.suffix_link is not None:             # <<<<<<<<<<<<<<
  *                             suffix_link = node.suffix_link.children[word_id]
  *                         new_node = ExtendedTrieNode(phrase_location=phrase_location,
  */
-          __pyx_t_9 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__suffix_link); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1033; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_9 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__suffix_link); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1037; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_9);
           __pyx_t_8 = (__pyx_t_9 != Py_None);
           __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
           if (__pyx_t_8) {
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1034
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1038
  *                         suffix_link = self.rules.root
  *                         if node.suffix_link is not None:
  *                             suffix_link = node.suffix_link.children[word_id]             # <<<<<<<<<<<<<<
  *                         new_node = ExtendedTrieNode(phrase_location=phrase_location,
  *                                 suffix_link=suffix_link,
  */
-            __pyx_t_9 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__suffix_link); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1034; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_9 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__suffix_link); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1038; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_9);
-            __pyx_t_10 = PyObject_GetAttr(__pyx_t_9, __pyx_n_s__children); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1034; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_10 = PyObject_GetAttr(__pyx_t_9, __pyx_n_s__children); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1038; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_10);
             __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
-            __pyx_t_9 = PyObject_GetItem(__pyx_t_10, __pyx_cur_scope->__pyx_v_word_id); if (!__pyx_t_9) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1034; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_9 = PyObject_GetItem(__pyx_t_10, __pyx_cur_scope->__pyx_v_word_id); if (!__pyx_t_9) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1038; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_9);
             __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
             __Pyx_GOTREF(__pyx_cur_scope->__pyx_v_suffix_link);
@@ -45870,35 +47778,35 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
           }
           __pyx_L37:;
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1035
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1039
  *                         if node.suffix_link is not None:
  *                             suffix_link = node.suffix_link.children[word_id]
  *                         new_node = ExtendedTrieNode(phrase_location=phrase_location,             # <<<<<<<<<<<<<<
  *                                 suffix_link=suffix_link,
  *                                 phrase=hiero_phrase)
  */
-          __pyx_t_9 = PyDict_New(); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1035; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_9 = PyDict_New(); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1039; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(((PyObject *)__pyx_t_9));
-          if (PyDict_SetItem(__pyx_t_9, ((PyObject *)__pyx_n_s__phrase_location), ((PyObject *)__pyx_cur_scope->__pyx_v_phrase_location)) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1035; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          if (PyDict_SetItem(__pyx_t_9, ((PyObject *)__pyx_n_s__phrase_location), ((PyObject *)__pyx_cur_scope->__pyx_v_phrase_location)) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1039; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1036
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1040
  *                             suffix_link = node.suffix_link.children[word_id]
  *                         new_node = ExtendedTrieNode(phrase_location=phrase_location,
  *                                 suffix_link=suffix_link,             # <<<<<<<<<<<<<<
  *                                 phrase=hiero_phrase)
  *                     node.children[word_id] = new_node
  */
-          if (PyDict_SetItem(__pyx_t_9, ((PyObject *)__pyx_n_s__suffix_link), __pyx_cur_scope->__pyx_v_suffix_link) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1035; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          if (PyDict_SetItem(__pyx_t_9, ((PyObject *)__pyx_n_s__suffix_link), __pyx_cur_scope->__pyx_v_suffix_link) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1039; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1037
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1041
  *                         new_node = ExtendedTrieNode(phrase_location=phrase_location,
  *                                 suffix_link=suffix_link,
  *                                 phrase=hiero_phrase)             # <<<<<<<<<<<<<<
  *                     node.children[word_id] = new_node
  *                     node = new_node
  */
-          if (PyDict_SetItem(__pyx_t_9, ((PyObject *)__pyx_n_s__phrase), ((PyObject *)__pyx_cur_scope->__pyx_v_hiero_phrase)) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1035; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-          __pyx_t_10 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_ExtendedTrieNode)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_9)); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1035; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          if (PyDict_SetItem(__pyx_t_9, ((PyObject *)__pyx_n_s__phrase), ((PyObject *)__pyx_cur_scope->__pyx_v_hiero_phrase)) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1039; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_10 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_ExtendedTrieNode)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_9)); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1039; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_10);
           __Pyx_DECREF(((PyObject *)__pyx_t_9)); __pyx_t_9 = 0;
           __Pyx_GOTREF(__pyx_cur_scope->__pyx_v_new_node);
@@ -45909,19 +47817,19 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
         }
         __pyx_L33:;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1038
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1042
  *                                 suffix_link=suffix_link,
  *                                 phrase=hiero_phrase)
  *                     node.children[word_id] = new_node             # <<<<<<<<<<<<<<
  *                     node = new_node
  * 
  */
-        __pyx_t_10 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__children); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1038; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_10 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__children); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1042; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_10);
-        if (PyObject_SetItem(__pyx_t_10, __pyx_cur_scope->__pyx_v_word_id, __pyx_cur_scope->__pyx_v_new_node) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1038; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        if (PyObject_SetItem(__pyx_t_10, __pyx_cur_scope->__pyx_v_word_id, __pyx_cur_scope->__pyx_v_new_node) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1042; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1039
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1043
  *                                 phrase=hiero_phrase)
  *                     node.children[word_id] = new_node
  *                     node = new_node             # <<<<<<<<<<<<<<
@@ -45934,7 +47842,7 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
         __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_new_node);
         __pyx_cur_scope->__pyx_v_node = __pyx_cur_scope->__pyx_v_new_node;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1044
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1048
  *                     This should happen before we get to extraction (so that
  *                     the node will exist if needed)'''
  *                     if arity < self.max_nonterminals:             # <<<<<<<<<<<<<<
@@ -45944,14 +47852,14 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
         __pyx_t_8 = (__pyx_cur_scope->__pyx_v_arity < __pyx_cur_scope->__pyx_v_self->max_nonterminals);
         if (__pyx_t_8) {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1045
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1049
  *                     the node will exist if needed)'''
  *                     if arity < self.max_nonterminals:
  *                         xcat_index = arity+1             # <<<<<<<<<<<<<<
  *                         xcat = sym_setindex(self.category, xcat_index)
  *                         suffix_link_xcat_index = xcat_index
  */
-          __pyx_t_10 = PyInt_FromLong((__pyx_cur_scope->__pyx_v_arity + 1)); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1045; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_10 = PyInt_FromLong((__pyx_cur_scope->__pyx_v_arity + 1)); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1049; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_10);
           __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_xcat_index);
           __Pyx_XDECREF(__pyx_cur_scope->__pyx_v_xcat_index);
@@ -45959,17 +47867,17 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
           __pyx_cur_scope->__pyx_v_xcat_index = __pyx_t_10;
           __pyx_t_10 = 0;
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1046
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1050
  *                     if arity < self.max_nonterminals:
  *                         xcat_index = arity+1
  *                         xcat = sym_setindex(self.category, xcat_index)             # <<<<<<<<<<<<<<
  *                         suffix_link_xcat_index = xcat_index
  *                         if is_shadow_path:
  */
-          __pyx_t_18 = __Pyx_PyInt_AsInt(__pyx_cur_scope->__pyx_v_xcat_index); if (unlikely((__pyx_t_18 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1046; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_18 = __Pyx_PyInt_AsInt(__pyx_cur_scope->__pyx_v_xcat_index); if (unlikely((__pyx_t_18 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1050; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __pyx_cur_scope->__pyx_v_xcat = __pyx_f_3_sa_sym_setindex(__pyx_cur_scope->__pyx_v_self->category, __pyx_t_18);
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1047
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1051
  *                         xcat_index = arity+1
  *                         xcat = sym_setindex(self.category, xcat_index)
  *                         suffix_link_xcat_index = xcat_index             # <<<<<<<<<<<<<<
@@ -45982,24 +47890,24 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
           __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_xcat_index);
           __pyx_cur_scope->__pyx_v_suffix_link_xcat_index = __pyx_cur_scope->__pyx_v_xcat_index;
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1048
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1052
  *                         xcat = sym_setindex(self.category, xcat_index)
  *                         suffix_link_xcat_index = xcat_index
  *                         if is_shadow_path:             # <<<<<<<<<<<<<<
  *                             suffix_link_xcat_index = xcat_index-1
  *                         suffix_link_xcat = sym_setindex(self.category, suffix_link_xcat_index)
  */
-          __pyx_t_8 = __Pyx_PyObject_IsTrue(__pyx_cur_scope->__pyx_v_is_shadow_path); if (unlikely(__pyx_t_8 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1048; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_8 = __Pyx_PyObject_IsTrue(__pyx_cur_scope->__pyx_v_is_shadow_path); if (unlikely(__pyx_t_8 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1052; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           if (__pyx_t_8) {
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1049
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1053
  *                         suffix_link_xcat_index = xcat_index
  *                         if is_shadow_path:
  *                             suffix_link_xcat_index = xcat_index-1             # <<<<<<<<<<<<<<
  *                         suffix_link_xcat = sym_setindex(self.category, suffix_link_xcat_index)
  *                         node.children[xcat] = ExtendedTrieNode(phrase_location=node.phrase_location,
  */
-            __pyx_t_10 = PyNumber_Subtract(__pyx_cur_scope->__pyx_v_xcat_index, __pyx_int_1); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1049; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_10 = PyNumber_Subtract(__pyx_cur_scope->__pyx_v_xcat_index, __pyx_int_1); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1053; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_10);
             __Pyx_GOTREF(__pyx_cur_scope->__pyx_v_suffix_link_xcat_index);
             __Pyx_DECREF(__pyx_cur_scope->__pyx_v_suffix_link_xcat_index);
@@ -46010,159 +47918,159 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
           }
           __pyx_L39:;
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1050
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1054
  *                         if is_shadow_path:
  *                             suffix_link_xcat_index = xcat_index-1
  *                         suffix_link_xcat = sym_setindex(self.category, suffix_link_xcat_index)             # <<<<<<<<<<<<<<
  *                         node.children[xcat] = ExtendedTrieNode(phrase_location=node.phrase_location,
  *                                 suffix_link=node.suffix_link.children[suffix_link_xcat],
  */
-          __pyx_t_18 = __Pyx_PyInt_AsInt(__pyx_cur_scope->__pyx_v_suffix_link_xcat_index); if (unlikely((__pyx_t_18 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1050; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_18 = __Pyx_PyInt_AsInt(__pyx_cur_scope->__pyx_v_suffix_link_xcat_index); if (unlikely((__pyx_t_18 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1054; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __pyx_cur_scope->__pyx_v_suffix_link_xcat = __pyx_f_3_sa_sym_setindex(__pyx_cur_scope->__pyx_v_self->category, __pyx_t_18);
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1051
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1055
  *                             suffix_link_xcat_index = xcat_index-1
  *                         suffix_link_xcat = sym_setindex(self.category, suffix_link_xcat_index)
  *                         node.children[xcat] = ExtendedTrieNode(phrase_location=node.phrase_location,             # <<<<<<<<<<<<<<
  *                                 suffix_link=node.suffix_link.children[suffix_link_xcat],
  *                                 phrase= Phrase(phrase + (xcat,)))
  */
-          __pyx_t_10 = PyDict_New(); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1051; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_10 = PyDict_New(); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1055; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(((PyObject *)__pyx_t_10));
-          __pyx_t_9 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__phrase_location); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1051; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_9 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__phrase_location); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1055; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_9);
-          if (PyDict_SetItem(__pyx_t_10, ((PyObject *)__pyx_n_s__phrase_location), __pyx_t_9) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1051; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          if (PyDict_SetItem(__pyx_t_10, ((PyObject *)__pyx_n_s__phrase_location), __pyx_t_9) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1055; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1052
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1056
  *                         suffix_link_xcat = sym_setindex(self.category, suffix_link_xcat_index)
  *                         node.children[xcat] = ExtendedTrieNode(phrase_location=node.phrase_location,
  *                                 suffix_link=node.suffix_link.children[suffix_link_xcat],             # <<<<<<<<<<<<<<
  *                                 phrase= Phrase(phrase + (xcat,)))
  * 
  */
-          __pyx_t_9 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__suffix_link); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1052; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_9 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__suffix_link); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1056; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_9);
-          __pyx_t_3 = PyObject_GetAttr(__pyx_t_9, __pyx_n_s__children); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1052; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_3 = PyObject_GetAttr(__pyx_t_9, __pyx_n_s__children); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1056; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_3);
           __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
-          __pyx_t_9 = __Pyx_GetItemInt(__pyx_t_3, __pyx_cur_scope->__pyx_v_suffix_link_xcat, sizeof(int), PyInt_FromLong); if (!__pyx_t_9) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1052; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_9 = __Pyx_GetItemInt(__pyx_t_3, __pyx_cur_scope->__pyx_v_suffix_link_xcat, sizeof(int), PyInt_FromLong); if (!__pyx_t_9) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1056; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_9);
           __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-          if (PyDict_SetItem(__pyx_t_10, ((PyObject *)__pyx_n_s__suffix_link), __pyx_t_9) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1051; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          if (PyDict_SetItem(__pyx_t_10, ((PyObject *)__pyx_n_s__suffix_link), __pyx_t_9) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1055; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1053
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1057
  *                         node.children[xcat] = ExtendedTrieNode(phrase_location=node.phrase_location,
  *                                 suffix_link=node.suffix_link.children[suffix_link_xcat],
  *                                 phrase= Phrase(phrase + (xcat,)))             # <<<<<<<<<<<<<<
  * 
  *                     # sample from range
  */
-          __pyx_t_9 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_xcat); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1053; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_9 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_xcat); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1057; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_9);
-          __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1053; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1057; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_3);
           PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_9);
           __Pyx_GIVEREF(__pyx_t_9);
           __pyx_t_9 = 0;
-          __pyx_t_9 = PyNumber_Add(__pyx_cur_scope->__pyx_v_phrase, ((PyObject *)__pyx_t_3)); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1053; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_9 = PyNumber_Add(__pyx_cur_scope->__pyx_v_phrase, ((PyObject *)__pyx_t_3)); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1057; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_9);
           __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
-          __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1053; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1057; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_3);
           PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_9);
           __Pyx_GIVEREF(__pyx_t_9);
           __pyx_t_9 = 0;
-          __pyx_t_9 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_Phrase)), ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1053; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_9 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_Phrase)), ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1057; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_9);
           __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
-          if (PyDict_SetItem(__pyx_t_10, ((PyObject *)__pyx_n_s__phrase), __pyx_t_9) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1051; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          if (PyDict_SetItem(__pyx_t_10, ((PyObject *)__pyx_n_s__phrase), __pyx_t_9) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1055; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
-          __pyx_t_9 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_ExtendedTrieNode)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_10)); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1051; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_9 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_ExtendedTrieNode)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_10)); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1055; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_9);
           __Pyx_DECREF(((PyObject *)__pyx_t_10)); __pyx_t_10 = 0;
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1051
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1055
  *                             suffix_link_xcat_index = xcat_index-1
  *                         suffix_link_xcat = sym_setindex(self.category, suffix_link_xcat_index)
  *                         node.children[xcat] = ExtendedTrieNode(phrase_location=node.phrase_location,             # <<<<<<<<<<<<<<
  *                                 suffix_link=node.suffix_link.children[suffix_link_xcat],
  *                                 phrase= Phrase(phrase + (xcat,)))
  */
-          __pyx_t_10 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__children); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1051; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_10 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__children); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1055; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_10);
-          if (__Pyx_SetItemInt(__pyx_t_10, __pyx_cur_scope->__pyx_v_xcat, __pyx_t_9, sizeof(int), PyInt_FromLong) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1051; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          if (__Pyx_SetItemInt(__pyx_t_10, __pyx_cur_scope->__pyx_v_xcat, __pyx_t_9, sizeof(int), PyInt_FromLong) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1055; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
           __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
           goto __pyx_L38;
         }
         __pyx_L38:;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1056
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1060
  * 
  *                     # sample from range
  *                     if not is_shadow_path:             # <<<<<<<<<<<<<<
  *                         sample = self.sampler.sample(node.phrase_location)
  *                         num_subpatterns = (<PhraseLocation> node.phrase_location).num_subpatterns
  */
-        __pyx_t_8 = __Pyx_PyObject_IsTrue(__pyx_cur_scope->__pyx_v_is_shadow_path); if (unlikely(__pyx_t_8 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1056; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_8 = __Pyx_PyObject_IsTrue(__pyx_cur_scope->__pyx_v_is_shadow_path); if (unlikely(__pyx_t_8 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1060; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __pyx_t_19 = (!__pyx_t_8);
         if (__pyx_t_19) {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1057
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1061
  *                     # sample from range
  *                     if not is_shadow_path:
  *                         sample = self.sampler.sample(node.phrase_location)             # <<<<<<<<<<<<<<
  *                         num_subpatterns = (<PhraseLocation> node.phrase_location).num_subpatterns
  *                         chunklen = IntList(initial_len=num_subpatterns)
  */
-          __pyx_t_9 = PyObject_GetAttr(((PyObject *)__pyx_cur_scope->__pyx_v_self->sampler), __pyx_n_s__sample); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1057; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_9 = PyObject_GetAttr(((PyObject *)__pyx_cur_scope->__pyx_v_self->sampler), __pyx_n_s__sample); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1061; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_9);
-          __pyx_t_10 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__phrase_location); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1057; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_10 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__phrase_location); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1061; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_10);
-          __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1057; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1061; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_3);
           PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_10);
           __Pyx_GIVEREF(__pyx_t_10);
           __pyx_t_10 = 0;
-          __pyx_t_10 = PyObject_Call(__pyx_t_9, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1057; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_10 = PyObject_Call(__pyx_t_9, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1061; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_10);
           __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
           __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
-          if (!(likely(((__pyx_t_10) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_10, __pyx_ptype_3_sa_IntList))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1057; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          if (!(likely(((__pyx_t_10) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_10, __pyx_ptype_3_sa_IntList))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1061; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_XGOTREF(((PyObject *)__pyx_cur_scope->__pyx_v_sample));
           __Pyx_XDECREF(((PyObject *)__pyx_cur_scope->__pyx_v_sample));
           __Pyx_GIVEREF(__pyx_t_10);
           __pyx_cur_scope->__pyx_v_sample = ((struct __pyx_obj_3_sa_IntList *)__pyx_t_10);
           __pyx_t_10 = 0;
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1058
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1062
  *                     if not is_shadow_path:
  *                         sample = self.sampler.sample(node.phrase_location)
  *                         num_subpatterns = (<PhraseLocation> node.phrase_location).num_subpatterns             # <<<<<<<<<<<<<<
  *                         chunklen = IntList(initial_len=num_subpatterns)
  *                         for j from 0 <= j < num_subpatterns:
  */
-          __pyx_t_10 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__phrase_location); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1058; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_10 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__phrase_location); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1062; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_10);
           __pyx_cur_scope->__pyx_v_num_subpatterns = ((struct __pyx_obj_3_sa_PhraseLocation *)__pyx_t_10)->num_subpatterns;
           __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1059
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1063
  *                         sample = self.sampler.sample(node.phrase_location)
  *                         num_subpatterns = (<PhraseLocation> node.phrase_location).num_subpatterns
  *                         chunklen = IntList(initial_len=num_subpatterns)             # <<<<<<<<<<<<<<
  *                         for j from 0 <= j < num_subpatterns:
  *                             chunklen.arr[j] = hiero_phrase.chunklen(j)
  */
-          __pyx_t_10 = PyDict_New(); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1059; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_10 = PyDict_New(); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1063; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(((PyObject *)__pyx_t_10));
-          __pyx_t_3 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_num_subpatterns); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1059; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_3 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_num_subpatterns); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1063; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_3);
-          if (PyDict_SetItem(__pyx_t_10, ((PyObject *)__pyx_n_s__initial_len), __pyx_t_3) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1059; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          if (PyDict_SetItem(__pyx_t_10, ((PyObject *)__pyx_n_s__initial_len), __pyx_t_3) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1063; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-          __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_10)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1059; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_10)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1063; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_3);
           __Pyx_DECREF(((PyObject *)__pyx_t_10)); __pyx_t_10 = 0;
           __Pyx_XGOTREF(((PyObject *)__pyx_cur_scope->__pyx_v_chunklen));
@@ -46171,7 +48079,7 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
           __pyx_cur_scope->__pyx_v_chunklen = ((struct __pyx_obj_3_sa_IntList *)__pyx_t_3);
           __pyx_t_3 = 0;
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1060
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1064
  *                         num_subpatterns = (<PhraseLocation> node.phrase_location).num_subpatterns
  *                         chunklen = IntList(initial_len=num_subpatterns)
  *                         for j from 0 <= j < num_subpatterns:             # <<<<<<<<<<<<<<
@@ -46181,7 +48089,7 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
           __pyx_t_18 = __pyx_cur_scope->__pyx_v_num_subpatterns;
           for (__pyx_cur_scope->__pyx_v_j = 0; __pyx_cur_scope->__pyx_v_j < __pyx_t_18; __pyx_cur_scope->__pyx_v_j++) {
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1061
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1065
  *                         chunklen = IntList(initial_len=num_subpatterns)
  *                         for j from 0 <= j < num_subpatterns:
  *                             chunklen.arr[j] = hiero_phrase.chunklen(j)             # <<<<<<<<<<<<<<
@@ -46191,14 +48099,14 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
             (__pyx_cur_scope->__pyx_v_chunklen->arr[__pyx_cur_scope->__pyx_v_j]) = ((struct __pyx_vtabstruct_3_sa_Phrase *)__pyx_cur_scope->__pyx_v_hiero_phrase->__pyx_vtab)->chunklen(__pyx_cur_scope->__pyx_v_hiero_phrase, __pyx_cur_scope->__pyx_v_j);
           }
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1062
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1066
  *                         for j from 0 <= j < num_subpatterns:
  *                             chunklen.arr[j] = hiero_phrase.chunklen(j)
  *                         extracts = []             # <<<<<<<<<<<<<<
  *                         j = 0
  *                         extract_start = monitor_cpu()
  */
-          __pyx_t_3 = PyList_New(0); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1062; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_3 = PyList_New(0); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1066; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_3);
           __Pyx_XGOTREF(((PyObject *)__pyx_cur_scope->__pyx_v_extracts));
           __Pyx_XDECREF(((PyObject *)__pyx_cur_scope->__pyx_v_extracts));
@@ -46206,7 +48114,7 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
           __pyx_cur_scope->__pyx_v_extracts = __pyx_t_3;
           __pyx_t_3 = 0;
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1063
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1067
  *                             chunklen.arr[j] = hiero_phrase.chunklen(j)
  *                         extracts = []
  *                         j = 0             # <<<<<<<<<<<<<<
@@ -46215,14 +48123,14 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
  */
           __pyx_cur_scope->__pyx_v_j = 0;
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1064
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1068
  *                         extracts = []
  *                         j = 0
  *                         extract_start = monitor_cpu()             # <<<<<<<<<<<<<<
  *                         while j < sample.len:
  *                             extract = []
  */
-          __pyx_t_3 = PyFloat_FromDouble(__pyx_f_3_sa_monitor_cpu()); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1064; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_3 = PyFloat_FromDouble(__pyx_f_3_sa_monitor_cpu()); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1068; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_3);
           __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_extract_start);
           __Pyx_XDECREF(__pyx_cur_scope->__pyx_v_extract_start);
@@ -46230,7 +48138,7 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
           __pyx_cur_scope->__pyx_v_extract_start = __pyx_t_3;
           __pyx_t_3 = 0;
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1065
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1069
  *                         j = 0
  *                         extract_start = monitor_cpu()
  *                         while j < sample.len:             # <<<<<<<<<<<<<<
@@ -46241,14 +48149,14 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
             __pyx_t_19 = (__pyx_cur_scope->__pyx_v_j < __pyx_cur_scope->__pyx_v_sample->len);
             if (!__pyx_t_19) break;
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1066
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1070
  *                         extract_start = monitor_cpu()
  *                         while j < sample.len:
  *                             extract = []             # <<<<<<<<<<<<<<
  * 
  *                             assign_matching(&matching, sample.arr, j, num_subpatterns, self.fda.sent_id.arr)
  */
-            __pyx_t_3 = PyList_New(0); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1066; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_3 = PyList_New(0); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1070; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_3);
             __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_extract);
             __Pyx_XDECREF(__pyx_cur_scope->__pyx_v_extract);
@@ -46256,7 +48164,7 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
             __pyx_cur_scope->__pyx_v_extract = ((PyObject *)__pyx_t_3);
             __pyx_t_3 = 0;
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1068
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1072
  *                             extract = []
  * 
  *                             assign_matching(&matching, sample.arr, j, num_subpatterns, self.fda.sent_id.arr)             # <<<<<<<<<<<<<<
@@ -46265,14 +48173,14 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
  */
             __pyx_f_3_sa_assign_matching((&__pyx_cur_scope->__pyx_v_matching), __pyx_cur_scope->__pyx_v_sample->arr, __pyx_cur_scope->__pyx_v_j, __pyx_cur_scope->__pyx_v_num_subpatterns, __pyx_cur_scope->__pyx_v_self->fda->sent_id->arr);
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1069
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1073
  * 
  *                             assign_matching(&matching, sample.arr, j, num_subpatterns, self.fda.sent_id.arr)
  *                             extract = self.extract(hiero_phrase, &matching, chunklen.arr, num_subpatterns)             # <<<<<<<<<<<<<<
  *                             extracts.extend(extract)
  *                             j = j + num_subpatterns
  */
-            __pyx_t_3 = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_cur_scope->__pyx_v_self->__pyx_vtab)->extract(__pyx_cur_scope->__pyx_v_self, __pyx_cur_scope->__pyx_v_hiero_phrase, (&__pyx_cur_scope->__pyx_v_matching), __pyx_cur_scope->__pyx_v_chunklen->arr, __pyx_cur_scope->__pyx_v_num_subpatterns); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1069; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_3 = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_cur_scope->__pyx_v_self->__pyx_vtab)->extract(__pyx_cur_scope->__pyx_v_self, __pyx_cur_scope->__pyx_v_hiero_phrase, (&__pyx_cur_scope->__pyx_v_matching), __pyx_cur_scope->__pyx_v_chunklen->arr, __pyx_cur_scope->__pyx_v_num_subpatterns); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1073; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_3);
             __Pyx_GOTREF(__pyx_cur_scope->__pyx_v_extract);
             __Pyx_DECREF(__pyx_cur_scope->__pyx_v_extract);
@@ -46280,27 +48188,27 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
             __pyx_cur_scope->__pyx_v_extract = __pyx_t_3;
             __pyx_t_3 = 0;
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1070
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1074
  *                             assign_matching(&matching, sample.arr, j, num_subpatterns, self.fda.sent_id.arr)
  *                             extract = self.extract(hiero_phrase, &matching, chunklen.arr, num_subpatterns)
  *                             extracts.extend(extract)             # <<<<<<<<<<<<<<
  *                             j = j + num_subpatterns
  * 
  */
-            __pyx_t_3 = PyObject_GetAttr(((PyObject *)__pyx_cur_scope->__pyx_v_extracts), __pyx_n_s__extend); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1070; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_3 = PyObject_GetAttr(((PyObject *)__pyx_cur_scope->__pyx_v_extracts), __pyx_n_s__extend); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1074; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_3);
-            __pyx_t_10 = PyTuple_New(1); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1070; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_10 = PyTuple_New(1); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1074; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_10);
             __Pyx_INCREF(__pyx_cur_scope->__pyx_v_extract);
             PyTuple_SET_ITEM(__pyx_t_10, 0, __pyx_cur_scope->__pyx_v_extract);
             __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_extract);
-            __pyx_t_9 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_10), NULL); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1070; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_9 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_10), NULL); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1074; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_9);
             __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
             __Pyx_DECREF(((PyObject *)__pyx_t_10)); __pyx_t_10 = 0;
             __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1071
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1075
  *                             extract = self.extract(hiero_phrase, &matching, chunklen.arr, num_subpatterns)
  *                             extracts.extend(extract)
  *                             j = j + num_subpatterns             # <<<<<<<<<<<<<<
@@ -46310,7 +48218,7 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
             __pyx_cur_scope->__pyx_v_j = (__pyx_cur_scope->__pyx_v_j + __pyx_cur_scope->__pyx_v_num_subpatterns);
           }
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1073
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1077
  *                             j = j + num_subpatterns
  * 
  *                         num_samples = sample.len/num_subpatterns             # <<<<<<<<<<<<<<
@@ -46319,22 +48227,22 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
  */
           if (unlikely(__pyx_cur_scope->__pyx_v_num_subpatterns == 0)) {
             PyErr_Format(PyExc_ZeroDivisionError, "integer division or modulo by zero");
-            {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1073; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1077; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           }
           else if (sizeof(int) == sizeof(long) && unlikely(__pyx_cur_scope->__pyx_v_num_subpatterns == -1) && unlikely(UNARY_NEG_WOULD_OVERFLOW(__pyx_cur_scope->__pyx_v_sample->len))) {
             PyErr_Format(PyExc_OverflowError, "value too large to perform division");
-            {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1073; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1077; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           }
           __pyx_cur_scope->__pyx_v_num_samples = __Pyx_div_int(__pyx_cur_scope->__pyx_v_sample->len, __pyx_cur_scope->__pyx_v_num_subpatterns);
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1074
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1078
  * 
  *                         num_samples = sample.len/num_subpatterns
  *                         extract_stop = monitor_cpu()             # <<<<<<<<<<<<<<
  *                         self.extract_time = self.extract_time + extract_stop - extract_start
  *                         if len(extracts) > 0:
  */
-          __pyx_t_9 = PyFloat_FromDouble(__pyx_f_3_sa_monitor_cpu()); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1074; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_9 = PyFloat_FromDouble(__pyx_f_3_sa_monitor_cpu()); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1078; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_9);
           __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_extract_stop);
           __Pyx_XDECREF(__pyx_cur_scope->__pyx_v_extract_stop);
@@ -46342,98 +48250,97 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
           __pyx_cur_scope->__pyx_v_extract_stop = __pyx_t_9;
           __pyx_t_9 = 0;
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1075
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1079
  *                         num_samples = sample.len/num_subpatterns
  *                         extract_stop = monitor_cpu()
  *                         self.extract_time = self.extract_time + extract_stop - extract_start             # <<<<<<<<<<<<<<
  *                         if len(extracts) > 0:
- *                             fphrases = {}
+ *                             fcount = Counter()
  */
-          __pyx_t_9 = PyFloat_FromDouble(__pyx_cur_scope->__pyx_v_self->extract_time); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1075; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_9 = PyFloat_FromDouble(__pyx_cur_scope->__pyx_v_self->extract_time); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1079; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_9);
-          __pyx_t_10 = PyNumber_Add(__pyx_t_9, __pyx_cur_scope->__pyx_v_extract_stop); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1075; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_10 = PyNumber_Add(__pyx_t_9, __pyx_cur_scope->__pyx_v_extract_stop); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1079; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_10);
           __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
-          __pyx_t_9 = PyNumber_Subtract(__pyx_t_10, __pyx_cur_scope->__pyx_v_extract_start); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1075; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_9 = PyNumber_Subtract(__pyx_t_10, __pyx_cur_scope->__pyx_v_extract_start); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1079; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_9);
           __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-          __pyx_t_20 = __pyx_PyFloat_AsFloat(__pyx_t_9); if (unlikely((__pyx_t_20 == (float)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1075; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_20 = __pyx_PyFloat_AsFloat(__pyx_t_9); if (unlikely((__pyx_t_20 == (float)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1079; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
           __pyx_cur_scope->__pyx_v_self->extract_time = __pyx_t_20;
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1076
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1080
  *                         extract_stop = monitor_cpu()
  *                         self.extract_time = self.extract_time + extract_stop - extract_start
  *                         if len(extracts) > 0:             # <<<<<<<<<<<<<<
- *                             fphrases = {}
- *                             fals = {}
+ *                             fcount = Counter()
+ *                             fphrases = defaultdict(lambda: defaultdict(Counter))
  */
-          __pyx_t_5 = PyList_GET_SIZE(((PyObject *)__pyx_cur_scope->__pyx_v_extracts)); if (unlikely(__pyx_t_5 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1076; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_5 = PyList_GET_SIZE(((PyObject *)__pyx_cur_scope->__pyx_v_extracts)); if (unlikely(__pyx_t_5 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1080; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __pyx_t_19 = (__pyx_t_5 > 0);
           if (__pyx_t_19) {
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1077
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1081
  *                         self.extract_time = self.extract_time + extract_stop - extract_start
  *                         if len(extracts) > 0:
- *                             fphrases = {}             # <<<<<<<<<<<<<<
- *                             fals = {}
- *                             fcount = {}
- */
-            __pyx_t_9 = PyDict_New(); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1077; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-            __Pyx_GOTREF(((PyObject *)__pyx_t_9));
-            __Pyx_XGOTREF(((PyObject *)__pyx_cur_scope->__pyx_v_fphrases));
-            __Pyx_XDECREF(((PyObject *)__pyx_cur_scope->__pyx_v_fphrases));
-            __Pyx_GIVEREF(((PyObject *)__pyx_t_9));
-            __pyx_cur_scope->__pyx_v_fphrases = __pyx_t_9;
-            __pyx_t_9 = 0;
+ *                             fcount = Counter()             # <<<<<<<<<<<<<<
+ *                             fphrases = defaultdict(lambda: defaultdict(Counter))
+ *                             for f, e, count, als in extracts:
+ */
+            __pyx_t_9 = __Pyx_GetName(__pyx_m, __pyx_n_s__Counter); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1081; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __Pyx_GOTREF(__pyx_t_9);
+            __pyx_t_10 = PyObject_Call(__pyx_t_9, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1081; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __Pyx_GOTREF(__pyx_t_10);
+            __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+            __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_fcount);
+            __Pyx_XDECREF(__pyx_cur_scope->__pyx_v_fcount);
+            __Pyx_GIVEREF(__pyx_t_10);
+            __pyx_cur_scope->__pyx_v_fcount = __pyx_t_10;
+            __pyx_t_10 = 0;
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1078
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1082
  *                         if len(extracts) > 0:
- *                             fphrases = {}
- *                             fals = {}             # <<<<<<<<<<<<<<
- *                             fcount = {}
+ *                             fcount = Counter()
+ *                             fphrases = defaultdict(lambda: defaultdict(Counter))             # <<<<<<<<<<<<<<
  *                             for f, e, count, als in extracts:
+ *                                 fcount[f] += count
  */
-            __pyx_t_9 = PyDict_New(); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1078; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-            __Pyx_GOTREF(((PyObject *)__pyx_t_9));
-            __Pyx_XGOTREF(((PyObject *)__pyx_cur_scope->__pyx_v_fals));
-            __Pyx_XDECREF(((PyObject *)__pyx_cur_scope->__pyx_v_fals));
-            __Pyx_GIVEREF(((PyObject *)__pyx_t_9));
-            __pyx_cur_scope->__pyx_v_fals = __pyx_t_9;
+            __pyx_t_10 = __Pyx_GetName(__pyx_m, __pyx_n_s__defaultdict); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1082; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __Pyx_GOTREF(__pyx_t_10);
+            __pyx_t_9 = __Pyx_CyFunction_NewEx(&__pyx_mdef_3_sa_23HieroCachingRuleFactory_5input_lambda1, 0, NULL, __pyx_n_s___sa, NULL); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1082; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __Pyx_GOTREF(__pyx_t_9);
+            __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1082; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __Pyx_GOTREF(__pyx_t_3);
+            PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_9);
+            __Pyx_GIVEREF(__pyx_t_9);
             __pyx_t_9 = 0;
-
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1079
- *                             fphrases = {}
- *                             fals = {}
- *                             fcount = {}             # <<<<<<<<<<<<<<
- *                             for f, e, count, als in extracts:
- *                                 fcount.setdefault(f, 0.0)
- */
-            __pyx_t_9 = PyDict_New(); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1079; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-            __Pyx_GOTREF(((PyObject *)__pyx_t_9));
-            __Pyx_XGOTREF(((PyObject *)__pyx_cur_scope->__pyx_v_fcount));
-            __Pyx_XDECREF(((PyObject *)__pyx_cur_scope->__pyx_v_fcount));
-            __Pyx_GIVEREF(((PyObject *)__pyx_t_9));
-            __pyx_cur_scope->__pyx_v_fcount = __pyx_t_9;
+            __pyx_t_9 = PyObject_Call(__pyx_t_10, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1082; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __Pyx_GOTREF(__pyx_t_9);
+            __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
+            __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
+            __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_fphrases);
+            __Pyx_XDECREF(__pyx_cur_scope->__pyx_v_fphrases);
+            __Pyx_GIVEREF(__pyx_t_9);
+            __pyx_cur_scope->__pyx_v_fphrases = __pyx_t_9;
             __pyx_t_9 = 0;
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1080
- *                             fals = {}
- *                             fcount = {}
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1083
+ *                             fcount = Counter()
+ *                             fphrases = defaultdict(lambda: defaultdict(Counter))
  *                             for f, e, count, als in extracts:             # <<<<<<<<<<<<<<
- *                                 fcount.setdefault(f, 0.0)
- *                                 fcount[f] = fcount[f] + count
+ *                                 fcount[f] += count
+ *                                 fphrases[f][e][als] += count
  */
             __pyx_t_9 = ((PyObject *)__pyx_cur_scope->__pyx_v_extracts); __Pyx_INCREF(__pyx_t_9); __pyx_t_5 = 0;
             for (;;) {
               if (__pyx_t_5 >= PyList_GET_SIZE(__pyx_t_9)) break;
               #if CYTHON_COMPILING_IN_CPYTHON
-              __pyx_t_10 = PyList_GET_ITEM(__pyx_t_9, __pyx_t_5); __Pyx_INCREF(__pyx_t_10); __pyx_t_5++;
+              __pyx_t_3 = PyList_GET_ITEM(__pyx_t_9, __pyx_t_5); __Pyx_INCREF(__pyx_t_3); __pyx_t_5++;
               #else
-              __pyx_t_10 = PySequence_ITEM(__pyx_t_9, __pyx_t_5); __pyx_t_5++; if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1080; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+              __pyx_t_3 = PySequence_ITEM(__pyx_t_9, __pyx_t_5); __pyx_t_5++; if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1083; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
               #endif
-              if ((likely(PyTuple_CheckExact(__pyx_t_10))) || (PyList_CheckExact(__pyx_t_10))) {
-                PyObject* sequence = __pyx_t_10;
+              if ((likely(PyTuple_CheckExact(__pyx_t_3))) || (PyList_CheckExact(__pyx_t_3))) {
+                PyObject* sequence = __pyx_t_3;
                 #if CYTHON_COMPILING_IN_CPYTHON
                 Py_ssize_t size = Py_SIZE(sequence);
                 #else
@@ -46442,47 +48349,47 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
                 if (unlikely(size != 4)) {
                   if (size > 4) __Pyx_RaiseTooManyValuesError(4);
                   else if (size >= 0) __Pyx_RaiseNeedMoreValuesError(size);
-                  {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1080; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1083; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 }
                 #if CYTHON_COMPILING_IN_CPYTHON
                 if (likely(PyTuple_CheckExact(sequence))) {
-                  __pyx_t_3 = PyTuple_GET_ITEM(sequence, 0); 
+                  __pyx_t_10 = PyTuple_GET_ITEM(sequence, 0); 
                   __pyx_t_14 = PyTuple_GET_ITEM(sequence, 1); 
                   __pyx_t_15 = PyTuple_GET_ITEM(sequence, 2); 
                   __pyx_t_2 = PyTuple_GET_ITEM(sequence, 3); 
                 } else {
-                  __pyx_t_3 = PyList_GET_ITEM(sequence, 0); 
+                  __pyx_t_10 = PyList_GET_ITEM(sequence, 0); 
                   __pyx_t_14 = PyList_GET_ITEM(sequence, 1); 
                   __pyx_t_15 = PyList_GET_ITEM(sequence, 2); 
                   __pyx_t_2 = PyList_GET_ITEM(sequence, 3); 
                 }
-                __Pyx_INCREF(__pyx_t_3);
+                __Pyx_INCREF(__pyx_t_10);
                 __Pyx_INCREF(__pyx_t_14);
                 __Pyx_INCREF(__pyx_t_15);
                 __Pyx_INCREF(__pyx_t_2);
                 #else
                 Py_ssize_t i;
-                PyObject** temps[4] = {&__pyx_t_3,&__pyx_t_14,&__pyx_t_15,&__pyx_t_2};
+                PyObject** temps[4] = {&__pyx_t_10,&__pyx_t_14,&__pyx_t_15,&__pyx_t_2};
                 for (i=0; i < 4; i++) {
-                  PyObject* item = PySequence_ITEM(sequence, i); if (unlikely(!item)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1080; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  PyObject* item = PySequence_ITEM(sequence, i); if (unlikely(!item)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1083; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   *(temps[i]) = item;
                 }
                 #endif
-                __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
+                __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
               } else
               {
                 Py_ssize_t index = -1;
-                PyObject** temps[4] = {&__pyx_t_3,&__pyx_t_14,&__pyx_t_15,&__pyx_t_2};
-                __pyx_t_7 = PyObject_GetIter(__pyx_t_10); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1080; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                PyObject** temps[4] = {&__pyx_t_10,&__pyx_t_14,&__pyx_t_15,&__pyx_t_2};
+                __pyx_t_7 = PyObject_GetIter(__pyx_t_3); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1083; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_7);
-                __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
+                __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
                 __pyx_t_17 = Py_TYPE(__pyx_t_7)->tp_iternext;
                 for (index=0; index < 4; index++) {
                   PyObject* item = __pyx_t_17(__pyx_t_7); if (unlikely(!item)) goto __pyx_L48_unpacking_failed;
                   __Pyx_GOTREF(item);
                   *(temps[index]) = item;
                 }
-                if (__Pyx_IternextUnpackEndCheck(__pyx_t_17(__pyx_t_7), 4) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1080; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                if (__Pyx_IternextUnpackEndCheck(__pyx_t_17(__pyx_t_7), 4) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1083; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __pyx_t_17 = NULL;
                 __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
                 goto __pyx_L49_unpacking_done;
@@ -46490,14 +48397,14 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
                 __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
                 __pyx_t_17 = NULL;
                 if (__Pyx_IterFinish() == 0) __Pyx_RaiseNeedMoreValuesError(index);
-                {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1080; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1083; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __pyx_L49_unpacking_done:;
               }
               __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_f);
               __Pyx_XDECREF(__pyx_cur_scope->__pyx_v_f);
-              __Pyx_GIVEREF(__pyx_t_3);
-              __pyx_cur_scope->__pyx_v_f = __pyx_t_3;
-              __pyx_t_3 = 0;
+              __Pyx_GIVEREF(__pyx_t_10);
+              __pyx_cur_scope->__pyx_v_f = __pyx_t_10;
+              __pyx_t_10 = 0;
               __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_e);
               __Pyx_XDECREF(__pyx_cur_scope->__pyx_v_e);
               __Pyx_GIVEREF(__pyx_t_14);
@@ -46514,185 +48421,87 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
               __pyx_cur_scope->__pyx_v_als = __pyx_t_2;
               __pyx_t_2 = 0;
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1081
- *                             fcount = {}
- *                             for f, e, count, als in extracts:
- *                                 fcount.setdefault(f, 0.0)             # <<<<<<<<<<<<<<
- *                                 fcount[f] = fcount[f] + count
- *                                 fphrases.setdefault(f, {})
- */
-              __pyx_t_10 = PyFloat_FromDouble(0.0); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1081; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-              __Pyx_GOTREF(__pyx_t_10);
-              __pyx_t_2 = __Pyx_PyDict_SetDefault(((PyObject *)__pyx_cur_scope->__pyx_v_fcount), __pyx_cur_scope->__pyx_v_f, __pyx_t_10); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1081; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-              __Pyx_GOTREF(__pyx_t_2);
-              __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-              __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1082
- *                             for f, e, count, als in extracts:
- *                                 fcount.setdefault(f, 0.0)
- *                                 fcount[f] = fcount[f] + count             # <<<<<<<<<<<<<<
- *                                 fphrases.setdefault(f, {})
- *                                 fphrases[f].setdefault(e, {})
- */
-              __pyx_t_2 = __Pyx_PyDict_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_fcount), __pyx_cur_scope->__pyx_v_f); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1082; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-              __Pyx_GOTREF(__pyx_t_2);
-              __pyx_t_10 = PyNumber_Add(__pyx_t_2, __pyx_cur_scope->__pyx_v_count); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1082; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-              __Pyx_GOTREF(__pyx_t_10);
-              __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-              if (PyDict_SetItem(((PyObject *)__pyx_cur_scope->__pyx_v_fcount), __pyx_cur_scope->__pyx_v_f, __pyx_t_10) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1082; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-              __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1083
- *                                 fcount.setdefault(f, 0.0)
- *                                 fcount[f] = fcount[f] + count
- *                                 fphrases.setdefault(f, {})             # <<<<<<<<<<<<<<
- *                                 fphrases[f].setdefault(e, {})
- *                                 fphrases[f][e].setdefault(als,0.0)
- */
-              __pyx_t_10 = PyDict_New(); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1083; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-              __Pyx_GOTREF(((PyObject *)__pyx_t_10));
-              __pyx_t_2 = __Pyx_PyDict_SetDefault(((PyObject *)__pyx_cur_scope->__pyx_v_fphrases), __pyx_cur_scope->__pyx_v_f, ((PyObject *)__pyx_t_10)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1083; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-              __Pyx_GOTREF(__pyx_t_2);
-              __Pyx_DECREF(((PyObject *)__pyx_t_10)); __pyx_t_10 = 0;
-              __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-
               /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1084
- *                                 fcount[f] = fcount[f] + count
- *                                 fphrases.setdefault(f, {})
- *                                 fphrases[f].setdefault(e, {})             # <<<<<<<<<<<<<<
- *                                 fphrases[f][e].setdefault(als,0.0)
- *                                 fphrases[f][e][als] = fphrases[f][e][als] + count
- */
-              __pyx_t_2 = __Pyx_PyDict_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_fphrases), __pyx_cur_scope->__pyx_v_f); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1084; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-              __Pyx_GOTREF(__pyx_t_2);
-              __pyx_t_10 = PyObject_GetAttr(__pyx_t_2, __pyx_n_s__setdefault); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1084; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-              __Pyx_GOTREF(__pyx_t_10);
-              __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-              __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1084; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-              __Pyx_GOTREF(((PyObject *)__pyx_t_2));
-              __pyx_t_15 = PyTuple_New(2); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1084; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-              __Pyx_GOTREF(__pyx_t_15);
-              __Pyx_INCREF(__pyx_cur_scope->__pyx_v_e);
-              PyTuple_SET_ITEM(__pyx_t_15, 0, __pyx_cur_scope->__pyx_v_e);
-              __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_e);
-              PyTuple_SET_ITEM(__pyx_t_15, 1, ((PyObject *)__pyx_t_2));
-              __Pyx_GIVEREF(((PyObject *)__pyx_t_2));
-              __pyx_t_2 = 0;
-              __pyx_t_2 = PyObject_Call(__pyx_t_10, ((PyObject *)__pyx_t_15), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1084; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-              __Pyx_GOTREF(__pyx_t_2);
-              __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-              __Pyx_DECREF(((PyObject *)__pyx_t_15)); __pyx_t_15 = 0;
-              __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1085
- *                                 fphrases.setdefault(f, {})
- *                                 fphrases[f].setdefault(e, {})
- *                                 fphrases[f][e].setdefault(als,0.0)             # <<<<<<<<<<<<<<
- *                                 fphrases[f][e][als] = fphrases[f][e][als] + count
+ *                             fphrases = defaultdict(lambda: defaultdict(Counter))
+ *                             for f, e, count, als in extracts:
+ *                                 fcount[f] += count             # <<<<<<<<<<<<<<
+ *                                 fphrases[f][e][als] += count
  *                             for f, elist in fphrases.iteritems():
  */
-              __pyx_t_2 = __Pyx_PyDict_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_fphrases), __pyx_cur_scope->__pyx_v_f); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1085; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __Pyx_INCREF(__pyx_cur_scope->__pyx_v_f);
+              __pyx_t_3 = __pyx_cur_scope->__pyx_v_f;
+              __pyx_t_2 = PyObject_GetItem(__pyx_cur_scope->__pyx_v_fcount, __pyx_t_3); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1084; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_2);
-              __pyx_t_15 = PyObject_GetItem(__pyx_t_2, __pyx_cur_scope->__pyx_v_e); if (!__pyx_t_15) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1085; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_15 = PyNumber_InPlaceAdd(__pyx_t_2, __pyx_cur_scope->__pyx_v_count); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1084; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_15);
               __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-              __pyx_t_2 = PyObject_GetAttr(__pyx_t_15, __pyx_n_s__setdefault); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1085; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-              __Pyx_GOTREF(__pyx_t_2);
-              __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
-              __pyx_t_15 = PyFloat_FromDouble(0.0); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1085; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-              __Pyx_GOTREF(__pyx_t_15);
-              __pyx_t_10 = PyTuple_New(2); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1085; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-              __Pyx_GOTREF(__pyx_t_10);
-              __Pyx_INCREF(__pyx_cur_scope->__pyx_v_als);
-              PyTuple_SET_ITEM(__pyx_t_10, 0, __pyx_cur_scope->__pyx_v_als);
-              __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_als);
-              PyTuple_SET_ITEM(__pyx_t_10, 1, __pyx_t_15);
-              __Pyx_GIVEREF(__pyx_t_15);
-              __pyx_t_15 = 0;
-              __pyx_t_15 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_10), NULL); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1085; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-              __Pyx_GOTREF(__pyx_t_15);
-              __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-              __Pyx_DECREF(((PyObject *)__pyx_t_10)); __pyx_t_10 = 0;
+              if (PyObject_SetItem(__pyx_cur_scope->__pyx_v_fcount, __pyx_t_3, __pyx_t_15) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1084; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
+              __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1086
- *                                 fphrases[f].setdefault(e, {})
- *                                 fphrases[f][e].setdefault(als,0.0)
- *                                 fphrases[f][e][als] = fphrases[f][e][als] + count             # <<<<<<<<<<<<<<
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1085
+ *                             for f, e, count, als in extracts:
+ *                                 fcount[f] += count
+ *                                 fphrases[f][e][als] += count             # <<<<<<<<<<<<<<
  *                             for f, elist in fphrases.iteritems():
- *                                 f_margin = fcount[f]
+ *                                 for e, alslist in elist.iteritems():
  */
-              __pyx_t_15 = __Pyx_PyDict_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_fphrases), __pyx_cur_scope->__pyx_v_f); if (!__pyx_t_15) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1086; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-              __Pyx_GOTREF(__pyx_t_15);
-              __pyx_t_10 = PyObject_GetItem(__pyx_t_15, __pyx_cur_scope->__pyx_v_e); if (!__pyx_t_10) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1086; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-              __Pyx_GOTREF(__pyx_t_10);
-              __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
-              __pyx_t_15 = PyObject_GetItem(__pyx_t_10, __pyx_cur_scope->__pyx_v_als); if (!__pyx_t_15) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1086; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-              __Pyx_GOTREF(__pyx_t_15);
-              __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-              __pyx_t_10 = PyNumber_Add(__pyx_t_15, __pyx_cur_scope->__pyx_v_count); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1086; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-              __Pyx_GOTREF(__pyx_t_10);
-              __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
-              __pyx_t_15 = __Pyx_PyDict_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_fphrases), __pyx_cur_scope->__pyx_v_f); if (!__pyx_t_15) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1086; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_3 = PyObject_GetItem(__pyx_cur_scope->__pyx_v_fphrases, __pyx_cur_scope->__pyx_v_f); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1085; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __Pyx_GOTREF(__pyx_t_3);
+              __pyx_t_15 = PyObject_GetItem(__pyx_t_3, __pyx_cur_scope->__pyx_v_e); if (!__pyx_t_15) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1085; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_15);
-              __pyx_t_2 = PyObject_GetItem(__pyx_t_15, __pyx_cur_scope->__pyx_v_e); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1086; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+              __Pyx_INCREF(__pyx_cur_scope->__pyx_v_als);
+              __pyx_t_3 = __pyx_cur_scope->__pyx_v_als;
+              __pyx_t_2 = PyObject_GetItem(__pyx_t_15, __pyx_t_3); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1085; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_2);
-              __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
-              if (PyObject_SetItem(__pyx_t_2, __pyx_cur_scope->__pyx_v_als, __pyx_t_10) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1086; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_14 = PyNumber_InPlaceAdd(__pyx_t_2, __pyx_cur_scope->__pyx_v_count); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1085; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __Pyx_GOTREF(__pyx_t_14);
               __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-              __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
+              if (PyObject_SetItem(__pyx_t_15, __pyx_t_3, __pyx_t_14) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1085; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __Pyx_DECREF(__pyx_t_14); __pyx_t_14 = 0;
+              __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+              __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
             }
             __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1087
- *                                 fphrases[f][e].setdefault(als,0.0)
- *                                 fphrases[f][e][als] = fphrases[f][e][als] + count
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1086
+ *                                 fcount[f] += count
+ *                                 fphrases[f][e][als] += count
  *                             for f, elist in fphrases.iteritems():             # <<<<<<<<<<<<<<
- *                                 f_margin = fcount[f]
  *                                 for e, alslist in elist.iteritems():
+ *                                     alignment = None
  */
             __pyx_t_5 = 0;
-            __pyx_t_10 = __Pyx_dict_iterator(((PyObject *)__pyx_cur_scope->__pyx_v_fphrases), 1, ((PyObject *)__pyx_n_s__iteritems), (&__pyx_t_21), (&__pyx_t_18)); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1087; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-            __Pyx_GOTREF(__pyx_t_10);
+            if (unlikely(__pyx_cur_scope->__pyx_v_fphrases == Py_None)) {
+              PyErr_Format(PyExc_AttributeError, "'NoneType' object has no attribute '%s'", "iteritems");
+              {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1086; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            }
+            __pyx_t_15 = __Pyx_dict_iterator(__pyx_cur_scope->__pyx_v_fphrases, 0, ((PyObject *)__pyx_n_s__iteritems), (&__pyx_t_21), (&__pyx_t_18)); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1086; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __Pyx_GOTREF(__pyx_t_15);
             __Pyx_XDECREF(__pyx_t_9);
-            __pyx_t_9 = __pyx_t_10;
-            __pyx_t_10 = 0;
+            __pyx_t_9 = __pyx_t_15;
+            __pyx_t_15 = 0;
             while (1) {
-              __pyx_t_6 = __Pyx_dict_iter_next(__pyx_t_9, __pyx_t_21, &__pyx_t_5, &__pyx_t_10, &__pyx_t_2, NULL, __pyx_t_18);
+              __pyx_t_6 = __Pyx_dict_iter_next(__pyx_t_9, __pyx_t_21, &__pyx_t_5, &__pyx_t_15, &__pyx_t_3, NULL, __pyx_t_18);
               if (unlikely(__pyx_t_6 == 0)) break;
-              if (unlikely(__pyx_t_6 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1087; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-              __Pyx_GOTREF(__pyx_t_10);
-              __Pyx_GOTREF(__pyx_t_2);
+              if (unlikely(__pyx_t_6 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1086; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __Pyx_GOTREF(__pyx_t_15);
+              __Pyx_GOTREF(__pyx_t_3);
               __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_f);
               __Pyx_XDECREF(__pyx_cur_scope->__pyx_v_f);
-              __Pyx_GIVEREF(__pyx_t_10);
-              __pyx_cur_scope->__pyx_v_f = __pyx_t_10;
-              __pyx_t_10 = 0;
+              __Pyx_GIVEREF(__pyx_t_15);
+              __pyx_cur_scope->__pyx_v_f = __pyx_t_15;
+              __pyx_t_15 = 0;
               __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_elist);
               __Pyx_XDECREF(__pyx_cur_scope->__pyx_v_elist);
-              __Pyx_GIVEREF(__pyx_t_2);
-              __pyx_cur_scope->__pyx_v_elist = __pyx_t_2;
-              __pyx_t_2 = 0;
-
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1088
- *                                 fphrases[f][e][als] = fphrases[f][e][als] + count
- *                             for f, elist in fphrases.iteritems():
- *                                 f_margin = fcount[f]             # <<<<<<<<<<<<<<
- *                                 for e, alslist in elist.iteritems():
- *                                     alignment = None
- */
-              __pyx_t_2 = __Pyx_PyDict_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_fcount), __pyx_cur_scope->__pyx_v_f); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1088; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-              __Pyx_GOTREF(__pyx_t_2);
-              __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_f_margin);
-              __Pyx_XDECREF(__pyx_cur_scope->__pyx_v_f_margin);
-              __Pyx_GIVEREF(__pyx_t_2);
-              __pyx_cur_scope->__pyx_v_f_margin = __pyx_t_2;
-              __pyx_t_2 = 0;
+              __Pyx_GIVEREF(__pyx_t_3);
+              __pyx_cur_scope->__pyx_v_elist = __pyx_t_3;
+              __pyx_t_3 = 0;
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1089
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1087
+ *                                 fphrases[f][e][als] += count
  *                             for f, elist in fphrases.iteritems():
- *                                 f_margin = fcount[f]
  *                                 for e, alslist in elist.iteritems():             # <<<<<<<<<<<<<<
  *                                     alignment = None
  *                                     count = 0
@@ -46700,32 +48509,32 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
               __pyx_t_22 = 0;
               if (unlikely(__pyx_cur_scope->__pyx_v_elist == Py_None)) {
                 PyErr_Format(PyExc_AttributeError, "'NoneType' object has no attribute '%s'", "iteritems");
-                {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1089; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1087; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               }
-              __pyx_t_10 = __Pyx_dict_iterator(__pyx_cur_scope->__pyx_v_elist, 0, ((PyObject *)__pyx_n_s__iteritems), (&__pyx_t_23), (&__pyx_t_6)); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1089; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-              __Pyx_GOTREF(__pyx_t_10);
-              __Pyx_XDECREF(__pyx_t_2);
-              __pyx_t_2 = __pyx_t_10;
-              __pyx_t_10 = 0;
+              __pyx_t_15 = __Pyx_dict_iterator(__pyx_cur_scope->__pyx_v_elist, 0, ((PyObject *)__pyx_n_s__iteritems), (&__pyx_t_23), (&__pyx_t_6)); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1087; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __Pyx_GOTREF(__pyx_t_15);
+              __Pyx_XDECREF(__pyx_t_3);
+              __pyx_t_3 = __pyx_t_15;
+              __pyx_t_15 = 0;
               while (1) {
-                __pyx_t_4 = __Pyx_dict_iter_next(__pyx_t_2, __pyx_t_23, &__pyx_t_22, &__pyx_t_10, &__pyx_t_15, NULL, __pyx_t_6);
+                __pyx_t_4 = __Pyx_dict_iter_next(__pyx_t_3, __pyx_t_23, &__pyx_t_22, &__pyx_t_15, &__pyx_t_14, NULL, __pyx_t_6);
                 if (unlikely(__pyx_t_4 == 0)) break;
-                if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1089; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-                __Pyx_GOTREF(__pyx_t_10);
+                if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1087; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_15);
+                __Pyx_GOTREF(__pyx_t_14);
                 __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_e);
                 __Pyx_XDECREF(__pyx_cur_scope->__pyx_v_e);
-                __Pyx_GIVEREF(__pyx_t_10);
-                __pyx_cur_scope->__pyx_v_e = __pyx_t_10;
-                __pyx_t_10 = 0;
-                __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_alslist);
-                __Pyx_XDECREF(__pyx_cur_scope->__pyx_v_alslist);
                 __Pyx_GIVEREF(__pyx_t_15);
-                __pyx_cur_scope->__pyx_v_alslist = __pyx_t_15;
+                __pyx_cur_scope->__pyx_v_e = __pyx_t_15;
                 __pyx_t_15 = 0;
+                __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_alslist);
+                __Pyx_XDECREF(__pyx_cur_scope->__pyx_v_alslist);
+                __Pyx_GIVEREF(__pyx_t_14);
+                __pyx_cur_scope->__pyx_v_alslist = __pyx_t_14;
+                __pyx_t_14 = 0;
 
-                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1090
- *                                 f_margin = fcount[f]
+                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1088
+ *                             for f, elist in fphrases.iteritems():
  *                                 for e, alslist in elist.iteritems():
  *                                     alignment = None             # <<<<<<<<<<<<<<
  *                                     count = 0
@@ -46737,7 +48546,7 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
                 __Pyx_GIVEREF(Py_None);
                 __pyx_cur_scope->__pyx_v_alignment = Py_None;
 
-                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1091
+                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1089
  *                                 for e, alslist in elist.iteritems():
  *                                     alignment = None
  *                                     count = 0             # <<<<<<<<<<<<<<
@@ -46750,7 +48559,7 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
                 __Pyx_GIVEREF(__pyx_int_0);
                 __pyx_cur_scope->__pyx_v_count = __pyx_int_0;
 
-                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1092
+                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1090
  *                                     alignment = None
  *                                     count = 0
  *                                     for als, currcount in alslist.iteritems():             # <<<<<<<<<<<<<<
@@ -46760,49 +48569,49 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
                 __pyx_t_24 = 0;
                 if (unlikely(__pyx_cur_scope->__pyx_v_alslist == Py_None)) {
                   PyErr_Format(PyExc_AttributeError, "'NoneType' object has no attribute '%s'", "iteritems");
-                  {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1092; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1090; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 }
-                __pyx_t_10 = __Pyx_dict_iterator(__pyx_cur_scope->__pyx_v_alslist, 0, ((PyObject *)__pyx_n_s__iteritems), (&__pyx_t_25), (&__pyx_t_4)); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1092; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-                __Pyx_GOTREF(__pyx_t_10);
-                __Pyx_XDECREF(__pyx_t_15);
-                __pyx_t_15 = __pyx_t_10;
-                __pyx_t_10 = 0;
+                __pyx_t_15 = __Pyx_dict_iterator(__pyx_cur_scope->__pyx_v_alslist, 0, ((PyObject *)__pyx_n_s__iteritems), (&__pyx_t_25), (&__pyx_t_4)); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1090; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __Pyx_GOTREF(__pyx_t_15);
+                __Pyx_XDECREF(__pyx_t_14);
+                __pyx_t_14 = __pyx_t_15;
+                __pyx_t_15 = 0;
                 while (1) {
-                  __pyx_t_26 = __Pyx_dict_iter_next(__pyx_t_15, __pyx_t_25, &__pyx_t_24, &__pyx_t_10, &__pyx_t_14, NULL, __pyx_t_4);
+                  __pyx_t_26 = __Pyx_dict_iter_next(__pyx_t_14, __pyx_t_25, &__pyx_t_24, &__pyx_t_15, &__pyx_t_2, NULL, __pyx_t_4);
                   if (unlikely(__pyx_t_26 == 0)) break;
-                  if (unlikely(__pyx_t_26 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1092; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-                  __Pyx_GOTREF(__pyx_t_10);
-                  __Pyx_GOTREF(__pyx_t_14);
+                  if (unlikely(__pyx_t_26 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1090; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  __Pyx_GOTREF(__pyx_t_15);
+                  __Pyx_GOTREF(__pyx_t_2);
                   __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_als);
                   __Pyx_XDECREF(__pyx_cur_scope->__pyx_v_als);
-                  __Pyx_GIVEREF(__pyx_t_10);
-                  __pyx_cur_scope->__pyx_v_als = __pyx_t_10;
-                  __pyx_t_10 = 0;
+                  __Pyx_GIVEREF(__pyx_t_15);
+                  __pyx_cur_scope->__pyx_v_als = __pyx_t_15;
+                  __pyx_t_15 = 0;
                   __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_currcount);
                   __Pyx_XDECREF(__pyx_cur_scope->__pyx_v_currcount);
-                  __Pyx_GIVEREF(__pyx_t_14);
-                  __pyx_cur_scope->__pyx_v_currcount = __pyx_t_14;
-                  __pyx_t_14 = 0;
+                  __Pyx_GIVEREF(__pyx_t_2);
+                  __pyx_cur_scope->__pyx_v_currcount = __pyx_t_2;
+                  __pyx_t_2 = 0;
 
-                  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1093
+                  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1091
  *                                     count = 0
  *                                     for als, currcount in alslist.iteritems():
  *                                         if currcount > count:             # <<<<<<<<<<<<<<
  *                                             alignment = als
  *                                             count = currcount
  */
-                  __pyx_t_14 = PyObject_RichCompare(__pyx_cur_scope->__pyx_v_currcount, __pyx_cur_scope->__pyx_v_count, Py_GT); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1093; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-                  __Pyx_GOTREF(__pyx_t_14);
-                  __pyx_t_19 = __Pyx_PyObject_IsTrue(__pyx_t_14); if (unlikely(__pyx_t_19 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1093; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-                  __Pyx_DECREF(__pyx_t_14); __pyx_t_14 = 0;
+                  __pyx_t_2 = PyObject_RichCompare(__pyx_cur_scope->__pyx_v_currcount, __pyx_cur_scope->__pyx_v_count, Py_GT); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1091; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  __Pyx_GOTREF(__pyx_t_2);
+                  __pyx_t_19 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_19 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1091; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
                   if (__pyx_t_19) {
 
-                    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1094
+                    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1092
  *                                     for als, currcount in alslist.iteritems():
  *                                         if currcount > count:
  *                                             alignment = als             # <<<<<<<<<<<<<<
  *                                             count = currcount
- *                                     scores = []
+ *                                     scores = self.scorer.score(f, e, count,
  */
                     __Pyx_INCREF(__pyx_cur_scope->__pyx_v_als);
                     __Pyx_GOTREF(__pyx_cur_scope->__pyx_v_alignment);
@@ -46810,12 +48619,12 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
                     __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_als);
                     __pyx_cur_scope->__pyx_v_alignment = __pyx_cur_scope->__pyx_v_als;
 
-                    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1095
+                    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1093
  *                                         if currcount > count:
  *                                             alignment = als
  *                                             count = currcount             # <<<<<<<<<<<<<<
- *                                     scores = []
- *                                     for model in models:
+ *                                     scores = self.scorer.score(f, e, count,
+ *                                             fcount[f], num_samples)
  */
                     __Pyx_INCREF(__pyx_cur_scope->__pyx_v_currcount);
                     __Pyx_GOTREF(__pyx_cur_scope->__pyx_v_count);
@@ -46826,147 +48635,78 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
                   }
                   __pyx_L56:;
                 }
-                __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
+                __Pyx_DECREF(__pyx_t_14); __pyx_t_14 = 0;
 
-                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1096
+                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1094
  *                                             alignment = als
  *                                             count = currcount
- *                                     scores = []             # <<<<<<<<<<<<<<
- *                                     for model in models:
- *                                         scores.append(model(f, e, count, fcount[f], num_samples))
+ *                                     scores = self.scorer.score(f, e, count,             # <<<<<<<<<<<<<<
+ *                                             fcount[f], num_samples)
+ *                                     yield Rule(self.category, f, e, scores, alignment)
  */
-                __pyx_t_15 = PyList_New(0); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1096; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                if (!(likely(((__pyx_cur_scope->__pyx_v_f) == Py_None) || likely(__Pyx_TypeTest(__pyx_cur_scope->__pyx_v_f, __pyx_ptype_3_sa_Phrase))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1094; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_14 = __pyx_cur_scope->__pyx_v_f;
+                __Pyx_INCREF(__pyx_t_14);
+                if (!(likely(((__pyx_cur_scope->__pyx_v_e) == Py_None) || likely(__Pyx_TypeTest(__pyx_cur_scope->__pyx_v_e, __pyx_ptype_3_sa_Phrase))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1094; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_2 = __pyx_cur_scope->__pyx_v_e;
+                __Pyx_INCREF(__pyx_t_2);
+                __pyx_t_27 = __Pyx_PyInt_AsUnsignedInt(__pyx_cur_scope->__pyx_v_count); if (unlikely((__pyx_t_27 == (unsigned int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1094; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+
+                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1095
+ *                                             count = currcount
+ *                                     scores = self.scorer.score(f, e, count,
+ *                                             fcount[f], num_samples)             # <<<<<<<<<<<<<<
+ *                                     yield Rule(self.category, f, e, scores, alignment)
+ * 
+ */
+                __pyx_t_15 = PyObject_GetItem(__pyx_cur_scope->__pyx_v_fcount, __pyx_cur_scope->__pyx_v_f); if (!__pyx_t_15) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1095; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __Pyx_GOTREF(__pyx_t_15);
+                __pyx_t_28 = __Pyx_PyInt_AsUnsignedInt(__pyx_t_15); if (unlikely((__pyx_t_28 == (unsigned int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1095; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
+                __pyx_t_15 = ((PyObject *)((struct __pyx_vtabstruct_3_sa_Scorer *)__pyx_cur_scope->__pyx_v_self->scorer->__pyx_vtab)->score(__pyx_cur_scope->__pyx_v_self->scorer, ((struct __pyx_obj_3_sa_Phrase *)__pyx_t_14), ((struct __pyx_obj_3_sa_Phrase *)__pyx_t_2), __pyx_t_27, __pyx_t_28, __pyx_cur_scope->__pyx_v_num_samples)); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1094; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_15);
+                __Pyx_DECREF(__pyx_t_14); __pyx_t_14 = 0;
+                __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
                 __Pyx_XGOTREF(((PyObject *)__pyx_cur_scope->__pyx_v_scores));
                 __Pyx_XDECREF(((PyObject *)__pyx_cur_scope->__pyx_v_scores));
-                __Pyx_GIVEREF(((PyObject *)__pyx_t_15));
-                __pyx_cur_scope->__pyx_v_scores = __pyx_t_15;
+                __Pyx_GIVEREF(__pyx_t_15);
+                __pyx_cur_scope->__pyx_v_scores = ((struct __pyx_obj_3_sa_FeatureVector *)__pyx_t_15);
                 __pyx_t_15 = 0;
 
-                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1097
- *                                             count = currcount
- *                                     scores = []
- *                                     for model in models:             # <<<<<<<<<<<<<<
- *                                         scores.append(model(f, e, count, fcount[f], num_samples))
- *                                     yield Rule(self.category, f, e,
- */
-                if (PyList_CheckExact(__pyx_cur_scope->__pyx_v_models) || PyTuple_CheckExact(__pyx_cur_scope->__pyx_v_models)) {
-                  __pyx_t_15 = __pyx_cur_scope->__pyx_v_models; __Pyx_INCREF(__pyx_t_15); __pyx_t_25 = 0;
-                  __pyx_t_27 = NULL;
-                } else {
-                  __pyx_t_25 = -1; __pyx_t_15 = PyObject_GetIter(__pyx_cur_scope->__pyx_v_models); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1097; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-                  __Pyx_GOTREF(__pyx_t_15);
-                  __pyx_t_27 = Py_TYPE(__pyx_t_15)->tp_iternext;
-                }
-                for (;;) {
-                  if (!__pyx_t_27 && PyList_CheckExact(__pyx_t_15)) {
-                    if (__pyx_t_25 >= PyList_GET_SIZE(__pyx_t_15)) break;
-                    #if CYTHON_COMPILING_IN_CPYTHON
-                    __pyx_t_14 = PyList_GET_ITEM(__pyx_t_15, __pyx_t_25); __Pyx_INCREF(__pyx_t_14); __pyx_t_25++;
-                    #else
-                    __pyx_t_14 = PySequence_ITEM(__pyx_t_15, __pyx_t_25); __pyx_t_25++; if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1097; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
-                    #endif
-                  } else if (!__pyx_t_27 && PyTuple_CheckExact(__pyx_t_15)) {
-                    if (__pyx_t_25 >= PyTuple_GET_SIZE(__pyx_t_15)) break;
-                    #if CYTHON_COMPILING_IN_CPYTHON
-                    __pyx_t_14 = PyTuple_GET_ITEM(__pyx_t_15, __pyx_t_25); __Pyx_INCREF(__pyx_t_14); __pyx_t_25++;
-                    #else
-                    __pyx_t_14 = PySequence_ITEM(__pyx_t_15, __pyx_t_25); __pyx_t_25++; if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1097; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
-                    #endif
-                  } else {
-                    __pyx_t_14 = __pyx_t_27(__pyx_t_15);
-                    if (unlikely(!__pyx_t_14)) {
-                      if (PyErr_Occurred()) {
-                        if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-                        else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1097; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-                      }
-                      break;
-                    }
-                    __Pyx_GOTREF(__pyx_t_14);
-                  }
-                  __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_model);
-                  __Pyx_XDECREF(__pyx_cur_scope->__pyx_v_model);
-                  __Pyx_GIVEREF(__pyx_t_14);
-                  __pyx_cur_scope->__pyx_v_model = __pyx_t_14;
-                  __pyx_t_14 = 0;
-
-                  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1098
- *                                     scores = []
- *                                     for model in models:
- *                                         scores.append(model(f, e, count, fcount[f], num_samples))             # <<<<<<<<<<<<<<
- *                                     yield Rule(self.category, f, e,
- *                                             scores=scores, word_alignments=alignment)
- */
-                  __pyx_t_14 = __Pyx_PyDict_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_fcount), __pyx_cur_scope->__pyx_v_f); if (!__pyx_t_14) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1098; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-                  __Pyx_GOTREF(__pyx_t_14);
-                  __pyx_t_10 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_num_samples); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1098; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-                  __Pyx_GOTREF(__pyx_t_10);
-                  __pyx_t_3 = PyTuple_New(5); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1098; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-                  __Pyx_GOTREF(__pyx_t_3);
-                  __Pyx_INCREF(__pyx_cur_scope->__pyx_v_f);
-                  PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_cur_scope->__pyx_v_f);
-                  __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_f);
-                  __Pyx_INCREF(__pyx_cur_scope->__pyx_v_e);
-                  PyTuple_SET_ITEM(__pyx_t_3, 1, __pyx_cur_scope->__pyx_v_e);
-                  __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_e);
-                  __Pyx_INCREF(__pyx_cur_scope->__pyx_v_count);
-                  PyTuple_SET_ITEM(__pyx_t_3, 2, __pyx_cur_scope->__pyx_v_count);
-                  __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_count);
-                  PyTuple_SET_ITEM(__pyx_t_3, 3, __pyx_t_14);
-                  __Pyx_GIVEREF(__pyx_t_14);
-                  PyTuple_SET_ITEM(__pyx_t_3, 4, __pyx_t_10);
-                  __Pyx_GIVEREF(__pyx_t_10);
-                  __pyx_t_14 = 0;
-                  __pyx_t_10 = 0;
-                  __pyx_t_10 = PyObject_Call(__pyx_cur_scope->__pyx_v_model, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1098; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-                  __Pyx_GOTREF(__pyx_t_10);
-                  __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
-                  __pyx_t_11 = PyList_Append(__pyx_cur_scope->__pyx_v_scores, __pyx_t_10); if (unlikely(__pyx_t_11 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1098; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-                  __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-                }
-                __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
-
-                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1099
- *                                     for model in models:
- *                                         scores.append(model(f, e, count, fcount[f], num_samples))
- *                                     yield Rule(self.category, f, e,             # <<<<<<<<<<<<<<
- *                                             scores=scores, word_alignments=alignment)
+                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1096
+ *                                     scores = self.scorer.score(f, e, count,
+ *                                             fcount[f], num_samples)
+ *                                     yield Rule(self.category, f, e, scores, alignment)             # <<<<<<<<<<<<<<
  * 
+ *                 if len(phrase) < self.max_length and i+spanlen < len(fwords) and pathlen+1 <= self.max_initial_size:
  */
-                __pyx_t_15 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_self->category); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1099; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_15 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_self->category); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1096; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_15);
-                __pyx_t_10 = PyTuple_New(3); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1099; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-                __Pyx_GOTREF(__pyx_t_10);
-                PyTuple_SET_ITEM(__pyx_t_10, 0, __pyx_t_15);
+                __pyx_t_2 = PyTuple_New(5); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1096; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __Pyx_GOTREF(__pyx_t_2);
+                PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_t_15);
                 __Pyx_GIVEREF(__pyx_t_15);
                 __Pyx_INCREF(__pyx_cur_scope->__pyx_v_f);
-                PyTuple_SET_ITEM(__pyx_t_10, 1, __pyx_cur_scope->__pyx_v_f);
+                PyTuple_SET_ITEM(__pyx_t_2, 1, __pyx_cur_scope->__pyx_v_f);
                 __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_f);
                 __Pyx_INCREF(__pyx_cur_scope->__pyx_v_e);
-                PyTuple_SET_ITEM(__pyx_t_10, 2, __pyx_cur_scope->__pyx_v_e);
+                PyTuple_SET_ITEM(__pyx_t_2, 2, __pyx_cur_scope->__pyx_v_e);
                 __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_e);
+                __Pyx_INCREF(((PyObject *)__pyx_cur_scope->__pyx_v_scores));
+                PyTuple_SET_ITEM(__pyx_t_2, 3, ((PyObject *)__pyx_cur_scope->__pyx_v_scores));
+                __Pyx_GIVEREF(((PyObject *)__pyx_cur_scope->__pyx_v_scores));
+                __Pyx_INCREF(__pyx_cur_scope->__pyx_v_alignment);
+                PyTuple_SET_ITEM(__pyx_t_2, 4, __pyx_cur_scope->__pyx_v_alignment);
+                __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_alignment);
+                __pyx_t_15 = 0;
+                __pyx_t_15 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_Rule)), ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1096; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __Pyx_GOTREF(__pyx_t_15);
+                __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
+                __pyx_r = __pyx_t_15;
                 __pyx_t_15 = 0;
-                __pyx_t_15 = PyDict_New(); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1099; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-                __Pyx_GOTREF(((PyObject *)__pyx_t_15));
-
-                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1100
- *                                         scores.append(model(f, e, count, fcount[f], num_samples))
- *                                     yield Rule(self.category, f, e,
- *                                             scores=scores, word_alignments=alignment)             # <<<<<<<<<<<<<<
- * 
- *                 if len(phrase) < self.max_length and i+spanlen < len(fwords) and pathlen+1 <= self.max_initial_size:
- */
-                if (PyDict_SetItem(__pyx_t_15, ((PyObject *)__pyx_n_s__scores), ((PyObject *)__pyx_cur_scope->__pyx_v_scores)) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1099; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-                if (PyDict_SetItem(__pyx_t_15, ((PyObject *)__pyx_n_s__word_alignments), __pyx_cur_scope->__pyx_v_alignment) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1099; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-                __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_Rule)), ((PyObject *)__pyx_t_10), ((PyObject *)__pyx_t_15)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1099; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-                __Pyx_GOTREF(__pyx_t_3);
-                __Pyx_DECREF(((PyObject *)__pyx_t_10)); __pyx_t_10 = 0;
-                __Pyx_DECREF(((PyObject *)__pyx_t_15)); __pyx_t_15 = 0;
-                __pyx_r = __pyx_t_3;
-                __pyx_t_3 = 0;
                 __pyx_cur_scope->__pyx_t_0 = __pyx_t_1;
-                __Pyx_XGIVEREF(__pyx_t_2);
-                __pyx_cur_scope->__pyx_t_1 = __pyx_t_2;
+                __Pyx_XGIVEREF(__pyx_t_3);
+                __pyx_cur_scope->__pyx_t_1 = __pyx_t_3;
                 __pyx_cur_scope->__pyx_t_2 = __pyx_t_5;
                 __pyx_cur_scope->__pyx_t_3 = __pyx_t_6;
                 __Pyx_XGIVEREF(__pyx_t_9);
@@ -46982,11 +48722,11 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
                 /* return from generator, yielding value */
                 __pyx_generator->resume_label = 1;
                 return __pyx_r;
-                __pyx_L59_resume_from_yield:;
+                __pyx_L57_resume_from_yield:;
                 __pyx_t_1 = __pyx_cur_scope->__pyx_t_0;
-                __pyx_t_2 = __pyx_cur_scope->__pyx_t_1;
+                __pyx_t_3 = __pyx_cur_scope->__pyx_t_1;
                 __pyx_cur_scope->__pyx_t_1 = 0;
-                __Pyx_XGOTREF(__pyx_t_2);
+                __Pyx_XGOTREF(__pyx_t_3);
                 __pyx_t_5 = __pyx_cur_scope->__pyx_t_2;
                 __pyx_t_6 = __pyx_cur_scope->__pyx_t_3;
                 __pyx_t_9 = __pyx_cur_scope->__pyx_t_4;
@@ -46999,9 +48739,9 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
                 __pyx_t_21 = __pyx_cur_scope->__pyx_t_7;
                 __pyx_t_22 = __pyx_cur_scope->__pyx_t_8;
                 __pyx_t_23 = __pyx_cur_scope->__pyx_t_9;
-                if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1099; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1096; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               }
-              __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+              __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
             }
             __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
             goto __pyx_L45;
@@ -47014,117 +48754,117 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
       }
       __pyx_L32:;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1102
- *                                             scores=scores, word_alignments=alignment)
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1098
+ *                                     yield Rule(self.category, f, e, scores, alignment)
  * 
  *                 if len(phrase) < self.max_length and i+spanlen < len(fwords) and pathlen+1 <= self.max_initial_size:             # <<<<<<<<<<<<<<
  *                     for alt_id in range(len(fwords[i+spanlen])):
  *                         new_frontier.append((k, i+spanlen, alt_id, pathlen + 1, node, phrase, is_shadow_path))
  */
-      __pyx_t_21 = PyObject_Length(__pyx_cur_scope->__pyx_v_phrase); if (unlikely(__pyx_t_21 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1102; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_21 = PyObject_Length(__pyx_cur_scope->__pyx_v_phrase); if (unlikely(__pyx_t_21 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1098; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __pyx_t_19 = (__pyx_t_21 < __pyx_cur_scope->__pyx_v_self->max_length);
       if (__pyx_t_19) {
-        __pyx_t_9 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1102; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_9);
-        __pyx_t_2 = PyNumber_Add(__pyx_t_9, __pyx_cur_scope->__pyx_v_spanlen); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1102; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_2);
-        __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
-        __pyx_t_21 = PyObject_Length(__pyx_cur_scope->__pyx_v_fwords); if (unlikely(__pyx_t_21 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1102; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __pyx_t_9 = PyInt_FromSsize_t(__pyx_t_21); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1102; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_9 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1098; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_9);
-        __pyx_t_3 = PyObject_RichCompare(__pyx_t_2, __pyx_t_9, Py_LT); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1102; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_3 = PyNumber_Add(__pyx_t_9, __pyx_cur_scope->__pyx_v_spanlen); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1098; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_3);
-        __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
         __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
-        __pyx_t_8 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_8 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1102; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_21 = PyObject_Length(__pyx_cur_scope->__pyx_v_fwords); if (unlikely(__pyx_t_21 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1098; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_9 = PyInt_FromSsize_t(__pyx_t_21); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1098; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_9);
+        __pyx_t_15 = PyObject_RichCompare(__pyx_t_3, __pyx_t_9, Py_LT); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1098; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_15);
         __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+        __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+        __pyx_t_8 = __Pyx_PyObject_IsTrue(__pyx_t_15); if (unlikely(__pyx_t_8 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1098; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
         if (__pyx_t_8) {
-          __pyx_t_3 = PyNumber_Add(__pyx_cur_scope->__pyx_v_pathlen, __pyx_int_1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1102; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-          __Pyx_GOTREF(__pyx_t_3);
-          __pyx_t_9 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_self->max_initial_size); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1102; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_15 = PyNumber_Add(__pyx_cur_scope->__pyx_v_pathlen, __pyx_int_1); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1098; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __Pyx_GOTREF(__pyx_t_15);
+          __pyx_t_9 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_self->max_initial_size); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1098; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_9);
-          __pyx_t_2 = PyObject_RichCompare(__pyx_t_3, __pyx_t_9, Py_LE); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1102; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-          __Pyx_GOTREF(__pyx_t_2);
-          __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+          __pyx_t_3 = PyObject_RichCompare(__pyx_t_15, __pyx_t_9, Py_LE); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1098; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __Pyx_GOTREF(__pyx_t_3);
+          __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
           __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
-          __pyx_t_28 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_28 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1102; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-          __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-          __pyx_t_29 = __pyx_t_28;
+          __pyx_t_29 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_29 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1098; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+          __pyx_t_30 = __pyx_t_29;
         } else {
-          __pyx_t_29 = __pyx_t_8;
+          __pyx_t_30 = __pyx_t_8;
         }
-        __pyx_t_8 = __pyx_t_29;
+        __pyx_t_8 = __pyx_t_30;
       } else {
         __pyx_t_8 = __pyx_t_19;
       }
       if (__pyx_t_8) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1103
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1099
  * 
  *                 if len(phrase) < self.max_length and i+spanlen < len(fwords) and pathlen+1 <= self.max_initial_size:
  *                     for alt_id in range(len(fwords[i+spanlen])):             # <<<<<<<<<<<<<<
  *                         new_frontier.append((k, i+spanlen, alt_id, pathlen + 1, node, phrase, is_shadow_path))
  *                     num_subpatterns = arity
  */
-        __pyx_t_2 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1103; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_2);
-        __pyx_t_9 = PyNumber_Add(__pyx_t_2, __pyx_cur_scope->__pyx_v_spanlen); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1103; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_3 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1099; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_3);
+        __pyx_t_9 = PyNumber_Add(__pyx_t_3, __pyx_cur_scope->__pyx_v_spanlen); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1099; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_9);
-        __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-        __pyx_t_2 = PyObject_GetItem(__pyx_cur_scope->__pyx_v_fwords, __pyx_t_9); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1103; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_2);
+        __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+        __pyx_t_3 = PyObject_GetItem(__pyx_cur_scope->__pyx_v_fwords, __pyx_t_9); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1099; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_3);
         __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
-        __pyx_t_21 = PyObject_Length(__pyx_t_2); if (unlikely(__pyx_t_21 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1103; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+        __pyx_t_21 = PyObject_Length(__pyx_t_3); if (unlikely(__pyx_t_21 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1099; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
         for (__pyx_t_18 = 0; __pyx_t_18 < __pyx_t_21; __pyx_t_18+=1) {
           __pyx_cur_scope->__pyx_v_alt_id = __pyx_t_18;
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1104
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1100
  *                 if len(phrase) < self.max_length and i+spanlen < len(fwords) and pathlen+1 <= self.max_initial_size:
  *                     for alt_id in range(len(fwords[i+spanlen])):
  *                         new_frontier.append((k, i+spanlen, alt_id, pathlen + 1, node, phrase, is_shadow_path))             # <<<<<<<<<<<<<<
  *                     num_subpatterns = arity
  *                     if not is_shadow_path:
  */
-          __pyx_t_2 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_k); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1104; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-          __Pyx_GOTREF(__pyx_t_2);
-          __pyx_t_9 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1104; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-          __Pyx_GOTREF(__pyx_t_9);
-          __pyx_t_3 = PyNumber_Add(__pyx_t_9, __pyx_cur_scope->__pyx_v_spanlen); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1104; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_3 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_k); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1100; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_3);
-          __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
-          __pyx_t_9 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_alt_id); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1104; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_9 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1100; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_9);
-          __pyx_t_15 = PyNumber_Add(__pyx_cur_scope->__pyx_v_pathlen, __pyx_int_1); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1104; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_15 = PyNumber_Add(__pyx_t_9, __pyx_cur_scope->__pyx_v_spanlen); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1100; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_15);
-          __pyx_t_10 = PyTuple_New(7); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1104; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-          __Pyx_GOTREF(__pyx_t_10);
-          PyTuple_SET_ITEM(__pyx_t_10, 0, __pyx_t_2);
-          __Pyx_GIVEREF(__pyx_t_2);
-          PyTuple_SET_ITEM(__pyx_t_10, 1, __pyx_t_3);
+          __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+          __pyx_t_9 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_alt_id); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1100; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __Pyx_GOTREF(__pyx_t_9);
+          __pyx_t_2 = PyNumber_Add(__pyx_cur_scope->__pyx_v_pathlen, __pyx_int_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1100; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __Pyx_GOTREF(__pyx_t_2);
+          __pyx_t_14 = PyTuple_New(7); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1100; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __Pyx_GOTREF(__pyx_t_14);
+          PyTuple_SET_ITEM(__pyx_t_14, 0, __pyx_t_3);
           __Pyx_GIVEREF(__pyx_t_3);
-          PyTuple_SET_ITEM(__pyx_t_10, 2, __pyx_t_9);
-          __Pyx_GIVEREF(__pyx_t_9);
-          PyTuple_SET_ITEM(__pyx_t_10, 3, __pyx_t_15);
+          PyTuple_SET_ITEM(__pyx_t_14, 1, __pyx_t_15);
           __Pyx_GIVEREF(__pyx_t_15);
+          PyTuple_SET_ITEM(__pyx_t_14, 2, __pyx_t_9);
+          __Pyx_GIVEREF(__pyx_t_9);
+          PyTuple_SET_ITEM(__pyx_t_14, 3, __pyx_t_2);
+          __Pyx_GIVEREF(__pyx_t_2);
           __Pyx_INCREF(__pyx_cur_scope->__pyx_v_node);
-          PyTuple_SET_ITEM(__pyx_t_10, 4, __pyx_cur_scope->__pyx_v_node);
+          PyTuple_SET_ITEM(__pyx_t_14, 4, __pyx_cur_scope->__pyx_v_node);
           __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_node);
           __Pyx_INCREF(__pyx_cur_scope->__pyx_v_phrase);
-          PyTuple_SET_ITEM(__pyx_t_10, 5, __pyx_cur_scope->__pyx_v_phrase);
+          PyTuple_SET_ITEM(__pyx_t_14, 5, __pyx_cur_scope->__pyx_v_phrase);
           __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_phrase);
           __Pyx_INCREF(__pyx_cur_scope->__pyx_v_is_shadow_path);
-          PyTuple_SET_ITEM(__pyx_t_10, 6, __pyx_cur_scope->__pyx_v_is_shadow_path);
+          PyTuple_SET_ITEM(__pyx_t_14, 6, __pyx_cur_scope->__pyx_v_is_shadow_path);
           __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_is_shadow_path);
-          __pyx_t_2 = 0;
           __pyx_t_3 = 0;
-          __pyx_t_9 = 0;
           __pyx_t_15 = 0;
-          __pyx_t_11 = PyList_Append(__pyx_cur_scope->__pyx_v_new_frontier, ((PyObject *)__pyx_t_10)); if (unlikely(__pyx_t_11 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1104; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-          __Pyx_DECREF(((PyObject *)__pyx_t_10)); __pyx_t_10 = 0;
+          __pyx_t_9 = 0;
+          __pyx_t_2 = 0;
+          __pyx_t_11 = PyList_Append(__pyx_cur_scope->__pyx_v_new_frontier, ((PyObject *)__pyx_t_14)); if (unlikely(__pyx_t_11 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1100; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __Pyx_DECREF(((PyObject *)__pyx_t_14)); __pyx_t_14 = 0;
         }
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1105
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1101
  *                     for alt_id in range(len(fwords[i+spanlen])):
  *                         new_frontier.append((k, i+spanlen, alt_id, pathlen + 1, node, phrase, is_shadow_path))
  *                     num_subpatterns = arity             # <<<<<<<<<<<<<<
@@ -47133,18 +48873,18 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
  */
         __pyx_cur_scope->__pyx_v_num_subpatterns = __pyx_cur_scope->__pyx_v_arity;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1106
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1102
  *                         new_frontier.append((k, i+spanlen, alt_id, pathlen + 1, node, phrase, is_shadow_path))
  *                     num_subpatterns = arity
  *                     if not is_shadow_path:             # <<<<<<<<<<<<<<
  *                         num_subpatterns = num_subpatterns + 1
  *                     if len(phrase)+1 < self.max_length and arity < self.max_nonterminals and num_subpatterns < self.max_chunks:
  */
-        __pyx_t_8 = __Pyx_PyObject_IsTrue(__pyx_cur_scope->__pyx_v_is_shadow_path); if (unlikely(__pyx_t_8 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1106; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_8 = __Pyx_PyObject_IsTrue(__pyx_cur_scope->__pyx_v_is_shadow_path); if (unlikely(__pyx_t_8 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1102; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __pyx_t_19 = (!__pyx_t_8);
         if (__pyx_t_19) {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1107
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1103
  *                     num_subpatterns = arity
  *                     if not is_shadow_path:
  *                         num_subpatterns = num_subpatterns + 1             # <<<<<<<<<<<<<<
@@ -47152,34 +48892,34 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
  *                         xcat = sym_setindex(self.category, arity+1)
  */
           __pyx_cur_scope->__pyx_v_num_subpatterns = (__pyx_cur_scope->__pyx_v_num_subpatterns + 1);
-          goto __pyx_L63;
+          goto __pyx_L61;
         }
-        __pyx_L63:;
+        __pyx_L61:;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1108
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1104
  *                     if not is_shadow_path:
  *                         num_subpatterns = num_subpatterns + 1
  *                     if len(phrase)+1 < self.max_length and arity < self.max_nonterminals and num_subpatterns < self.max_chunks:             # <<<<<<<<<<<<<<
  *                         xcat = sym_setindex(self.category, arity+1)
  *                         xnode = node.children[xcat]
  */
-        __pyx_t_21 = PyObject_Length(__pyx_cur_scope->__pyx_v_phrase); if (unlikely(__pyx_t_21 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1108; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_21 = PyObject_Length(__pyx_cur_scope->__pyx_v_phrase); if (unlikely(__pyx_t_21 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1104; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __pyx_t_19 = ((__pyx_t_21 + 1) < __pyx_cur_scope->__pyx_v_self->max_length);
         if (__pyx_t_19) {
           __pyx_t_8 = (__pyx_cur_scope->__pyx_v_arity < __pyx_cur_scope->__pyx_v_self->max_nonterminals);
           if (__pyx_t_8) {
-            __pyx_t_29 = (__pyx_cur_scope->__pyx_v_num_subpatterns < __pyx_cur_scope->__pyx_v_self->max_chunks);
-            __pyx_t_28 = __pyx_t_29;
+            __pyx_t_30 = (__pyx_cur_scope->__pyx_v_num_subpatterns < __pyx_cur_scope->__pyx_v_self->max_chunks);
+            __pyx_t_29 = __pyx_t_30;
           } else {
-            __pyx_t_28 = __pyx_t_8;
+            __pyx_t_29 = __pyx_t_8;
           }
-          __pyx_t_8 = __pyx_t_28;
+          __pyx_t_8 = __pyx_t_29;
         } else {
           __pyx_t_8 = __pyx_t_19;
         }
         if (__pyx_t_8) {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1109
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1105
  *                         num_subpatterns = num_subpatterns + 1
  *                     if len(phrase)+1 < self.max_length and arity < self.max_nonterminals and num_subpatterns < self.max_chunks:
  *                         xcat = sym_setindex(self.category, arity+1)             # <<<<<<<<<<<<<<
@@ -47188,159 +48928,159 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
  */
           __pyx_cur_scope->__pyx_v_xcat = __pyx_f_3_sa_sym_setindex(__pyx_cur_scope->__pyx_v_self->category, (__pyx_cur_scope->__pyx_v_arity + 1));
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1110
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1106
  *                     if len(phrase)+1 < self.max_length and arity < self.max_nonterminals and num_subpatterns < self.max_chunks:
  *                         xcat = sym_setindex(self.category, arity+1)
  *                         xnode = node.children[xcat]             # <<<<<<<<<<<<<<
  *                         # I put spanlen=1 below
  *                         key = tuple([self.min_gap_size, i, 1, pathlen])
  */
-          __pyx_t_10 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__children); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1110; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-          __Pyx_GOTREF(__pyx_t_10);
-          __pyx_t_15 = __Pyx_GetItemInt(__pyx_t_10, __pyx_cur_scope->__pyx_v_xcat, sizeof(int), PyInt_FromLong); if (!__pyx_t_15) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1110; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-          __Pyx_GOTREF(__pyx_t_15);
-          __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
+          __pyx_t_14 = PyObject_GetAttr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__children); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1106; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __Pyx_GOTREF(__pyx_t_14);
+          __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_14, __pyx_cur_scope->__pyx_v_xcat, sizeof(int), PyInt_FromLong); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1106; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __Pyx_GOTREF(__pyx_t_2);
+          __Pyx_DECREF(__pyx_t_14); __pyx_t_14 = 0;
           __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_xnode);
           __Pyx_XDECREF(__pyx_cur_scope->__pyx_v_xnode);
-          __Pyx_GIVEREF(__pyx_t_15);
-          __pyx_cur_scope->__pyx_v_xnode = __pyx_t_15;
-          __pyx_t_15 = 0;
+          __Pyx_GIVEREF(__pyx_t_2);
+          __pyx_cur_scope->__pyx_v_xnode = __pyx_t_2;
+          __pyx_t_2 = 0;
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1112
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1108
  *                         xnode = node.children[xcat]
  *                         # I put spanlen=1 below
  *                         key = tuple([self.min_gap_size, i, 1, pathlen])             # <<<<<<<<<<<<<<
  *                         frontier_nodes = []
  *                         if (key in nodes_isteps_away_buffer):
  */
-          __pyx_t_15 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_self->min_gap_size); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1112; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-          __Pyx_GOTREF(__pyx_t_15);
-          __pyx_t_10 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1112; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-          __Pyx_GOTREF(__pyx_t_10);
-          __pyx_t_9 = PyList_New(4); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1112; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_2 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_self->min_gap_size); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1108; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __Pyx_GOTREF(__pyx_t_2);
+          __pyx_t_14 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1108; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __Pyx_GOTREF(__pyx_t_14);
+          __pyx_t_9 = PyList_New(4); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1108; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_9);
-          PyList_SET_ITEM(__pyx_t_9, 0, __pyx_t_15);
-          __Pyx_GIVEREF(__pyx_t_15);
-          PyList_SET_ITEM(__pyx_t_9, 1, __pyx_t_10);
-          __Pyx_GIVEREF(__pyx_t_10);
+          PyList_SET_ITEM(__pyx_t_9, 0, __pyx_t_2);
+          __Pyx_GIVEREF(__pyx_t_2);
+          PyList_SET_ITEM(__pyx_t_9, 1, __pyx_t_14);
+          __Pyx_GIVEREF(__pyx_t_14);
           __Pyx_INCREF(__pyx_int_1);
           PyList_SET_ITEM(__pyx_t_9, 2, __pyx_int_1);
           __Pyx_GIVEREF(__pyx_int_1);
           __Pyx_INCREF(__pyx_cur_scope->__pyx_v_pathlen);
           PyList_SET_ITEM(__pyx_t_9, 3, __pyx_cur_scope->__pyx_v_pathlen);
           __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_pathlen);
-          __pyx_t_15 = 0;
-          __pyx_t_10 = 0;
-          __pyx_t_10 = ((PyObject *)PyList_AsTuple(__pyx_t_9)); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1112; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-          __Pyx_GOTREF(((PyObject *)__pyx_t_10));
+          __pyx_t_2 = 0;
+          __pyx_t_14 = 0;
+          __pyx_t_14 = ((PyObject *)PyList_AsTuple(__pyx_t_9)); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1108; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __Pyx_GOTREF(((PyObject *)__pyx_t_14));
           __Pyx_DECREF(((PyObject *)__pyx_t_9)); __pyx_t_9 = 0;
           __Pyx_XGOTREF(((PyObject *)__pyx_cur_scope->__pyx_v_key));
           __Pyx_XDECREF(((PyObject *)__pyx_cur_scope->__pyx_v_key));
-          __Pyx_GIVEREF(((PyObject *)__pyx_t_10));
-          __pyx_cur_scope->__pyx_v_key = __pyx_t_10;
-          __pyx_t_10 = 0;
+          __Pyx_GIVEREF(((PyObject *)__pyx_t_14));
+          __pyx_cur_scope->__pyx_v_key = __pyx_t_14;
+          __pyx_t_14 = 0;
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1113
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1109
  *                         # I put spanlen=1 below
  *                         key = tuple([self.min_gap_size, i, 1, pathlen])
  *                         frontier_nodes = []             # <<<<<<<<<<<<<<
  *                         if (key in nodes_isteps_away_buffer):
  *                             frontier_nodes = nodes_isteps_away_buffer[key]
  */
-          __pyx_t_10 = PyList_New(0); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1113; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-          __Pyx_GOTREF(__pyx_t_10);
+          __pyx_t_14 = PyList_New(0); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1109; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __Pyx_GOTREF(__pyx_t_14);
           __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_frontier_nodes);
           __Pyx_XDECREF(__pyx_cur_scope->__pyx_v_frontier_nodes);
-          __Pyx_GIVEREF(((PyObject *)__pyx_t_10));
-          __pyx_cur_scope->__pyx_v_frontier_nodes = ((PyObject *)__pyx_t_10);
-          __pyx_t_10 = 0;
+          __Pyx_GIVEREF(((PyObject *)__pyx_t_14));
+          __pyx_cur_scope->__pyx_v_frontier_nodes = ((PyObject *)__pyx_t_14);
+          __pyx_t_14 = 0;
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1114
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1110
  *                         key = tuple([self.min_gap_size, i, 1, pathlen])
  *                         frontier_nodes = []
  *                         if (key in nodes_isteps_away_buffer):             # <<<<<<<<<<<<<<
  *                             frontier_nodes = nodes_isteps_away_buffer[key]
  *                         else:
  */
-          __pyx_t_8 = ((PyDict_Contains(((PyObject *)__pyx_cur_scope->__pyx_v_nodes_isteps_away_buffer), ((PyObject *)__pyx_cur_scope->__pyx_v_key)))); if (unlikely(__pyx_t_8 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1114; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_8 = ((PyDict_Contains(((PyObject *)__pyx_cur_scope->__pyx_v_nodes_isteps_away_buffer), ((PyObject *)__pyx_cur_scope->__pyx_v_key)))); if (unlikely(__pyx_t_8 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1110; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           if (__pyx_t_8) {
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1115
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1111
  *                         frontier_nodes = []
  *                         if (key in nodes_isteps_away_buffer):
  *                             frontier_nodes = nodes_isteps_away_buffer[key]             # <<<<<<<<<<<<<<
  *                         else:
  *                             frontier_nodes = self.get_all_nodes_isteps_away(self.min_gap_size, i, 1, pathlen, fwords, next_states, reachable_buffer)
  */
-            __pyx_t_10 = __Pyx_PyDict_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_nodes_isteps_away_buffer), ((PyObject *)__pyx_cur_scope->__pyx_v_key)); if (!__pyx_t_10) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1115; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-            __Pyx_GOTREF(__pyx_t_10);
+            __pyx_t_14 = __Pyx_PyDict_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_nodes_isteps_away_buffer), ((PyObject *)__pyx_cur_scope->__pyx_v_key)); if (!__pyx_t_14) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1111; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __Pyx_GOTREF(__pyx_t_14);
             __Pyx_GOTREF(__pyx_cur_scope->__pyx_v_frontier_nodes);
             __Pyx_DECREF(__pyx_cur_scope->__pyx_v_frontier_nodes);
-            __Pyx_GIVEREF(__pyx_t_10);
-            __pyx_cur_scope->__pyx_v_frontier_nodes = __pyx_t_10;
-            __pyx_t_10 = 0;
-            goto __pyx_L65;
+            __Pyx_GIVEREF(__pyx_t_14);
+            __pyx_cur_scope->__pyx_v_frontier_nodes = __pyx_t_14;
+            __pyx_t_14 = 0;
+            goto __pyx_L63;
           }
           /*else*/ {
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1117
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1113
  *                             frontier_nodes = nodes_isteps_away_buffer[key]
  *                         else:
  *                             frontier_nodes = self.get_all_nodes_isteps_away(self.min_gap_size, i, 1, pathlen, fwords, next_states, reachable_buffer)             # <<<<<<<<<<<<<<
  *                             nodes_isteps_away_buffer[key] = frontier_nodes
  * 
  */
-            __pyx_t_10 = PyObject_GetAttr(((PyObject *)__pyx_cur_scope->__pyx_v_self), __pyx_n_s_123); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1117; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-            __Pyx_GOTREF(__pyx_t_10);
-            __pyx_t_9 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_self->min_gap_size); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1117; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_14 = PyObject_GetAttr(((PyObject *)__pyx_cur_scope->__pyx_v_self), __pyx_n_s_125); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1113; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __Pyx_GOTREF(__pyx_t_14);
+            __pyx_t_9 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_self->min_gap_size); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1113; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_9);
-            __pyx_t_15 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1117; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_2 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1113; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __Pyx_GOTREF(__pyx_t_2);
+            __pyx_t_15 = PyTuple_New(7); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1113; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_15);
-            __pyx_t_3 = PyTuple_New(7); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1117; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-            __Pyx_GOTREF(__pyx_t_3);
-            PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_9);
+            PyTuple_SET_ITEM(__pyx_t_15, 0, __pyx_t_9);
             __Pyx_GIVEREF(__pyx_t_9);
-            PyTuple_SET_ITEM(__pyx_t_3, 1, __pyx_t_15);
-            __Pyx_GIVEREF(__pyx_t_15);
+            PyTuple_SET_ITEM(__pyx_t_15, 1, __pyx_t_2);
+            __Pyx_GIVEREF(__pyx_t_2);
             __Pyx_INCREF(__pyx_int_1);
-            PyTuple_SET_ITEM(__pyx_t_3, 2, __pyx_int_1);
+            PyTuple_SET_ITEM(__pyx_t_15, 2, __pyx_int_1);
             __Pyx_GIVEREF(__pyx_int_1);
             __Pyx_INCREF(__pyx_cur_scope->__pyx_v_pathlen);
-            PyTuple_SET_ITEM(__pyx_t_3, 3, __pyx_cur_scope->__pyx_v_pathlen);
+            PyTuple_SET_ITEM(__pyx_t_15, 3, __pyx_cur_scope->__pyx_v_pathlen);
             __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_pathlen);
             __Pyx_INCREF(__pyx_cur_scope->__pyx_v_fwords);
-            PyTuple_SET_ITEM(__pyx_t_3, 4, __pyx_cur_scope->__pyx_v_fwords);
+            PyTuple_SET_ITEM(__pyx_t_15, 4, __pyx_cur_scope->__pyx_v_fwords);
             __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_fwords);
             __Pyx_INCREF(((PyObject *)__pyx_cur_scope->__pyx_v_next_states));
-            PyTuple_SET_ITEM(__pyx_t_3, 5, ((PyObject *)__pyx_cur_scope->__pyx_v_next_states));
+            PyTuple_SET_ITEM(__pyx_t_15, 5, ((PyObject *)__pyx_cur_scope->__pyx_v_next_states));
             __Pyx_GIVEREF(((PyObject *)__pyx_cur_scope->__pyx_v_next_states));
             __Pyx_INCREF(((PyObject *)__pyx_cur_scope->__pyx_v_reachable_buffer));
-            PyTuple_SET_ITEM(__pyx_t_3, 6, ((PyObject *)__pyx_cur_scope->__pyx_v_reachable_buffer));
+            PyTuple_SET_ITEM(__pyx_t_15, 6, ((PyObject *)__pyx_cur_scope->__pyx_v_reachable_buffer));
             __Pyx_GIVEREF(((PyObject *)__pyx_cur_scope->__pyx_v_reachable_buffer));
             __pyx_t_9 = 0;
-            __pyx_t_15 = 0;
-            __pyx_t_15 = PyObject_Call(__pyx_t_10, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1117; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-            __Pyx_GOTREF(__pyx_t_15);
-            __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-            __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
+            __pyx_t_2 = 0;
+            __pyx_t_2 = PyObject_Call(__pyx_t_14, ((PyObject *)__pyx_t_15), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1113; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __Pyx_GOTREF(__pyx_t_2);
+            __Pyx_DECREF(__pyx_t_14); __pyx_t_14 = 0;
+            __Pyx_DECREF(((PyObject *)__pyx_t_15)); __pyx_t_15 = 0;
             __Pyx_GOTREF(__pyx_cur_scope->__pyx_v_frontier_nodes);
             __Pyx_DECREF(__pyx_cur_scope->__pyx_v_frontier_nodes);
-            __Pyx_GIVEREF(__pyx_t_15);
-            __pyx_cur_scope->__pyx_v_frontier_nodes = __pyx_t_15;
-            __pyx_t_15 = 0;
+            __Pyx_GIVEREF(__pyx_t_2);
+            __pyx_cur_scope->__pyx_v_frontier_nodes = __pyx_t_2;
+            __pyx_t_2 = 0;
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1118
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1114
  *                         else:
  *                             frontier_nodes = self.get_all_nodes_isteps_away(self.min_gap_size, i, 1, pathlen, fwords, next_states, reachable_buffer)
  *                             nodes_isteps_away_buffer[key] = frontier_nodes             # <<<<<<<<<<<<<<
  * 
  *                         for (i, alt, pathlen) in frontier_nodes:
  */
-            if (PyDict_SetItem(((PyObject *)__pyx_cur_scope->__pyx_v_nodes_isteps_away_buffer), ((PyObject *)__pyx_cur_scope->__pyx_v_key), __pyx_cur_scope->__pyx_v_frontier_nodes) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1118; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            if (PyDict_SetItem(((PyObject *)__pyx_cur_scope->__pyx_v_nodes_isteps_away_buffer), ((PyObject *)__pyx_cur_scope->__pyx_v_key), __pyx_cur_scope->__pyx_v_frontier_nodes) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1114; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           }
-          __pyx_L65:;
+          __pyx_L63:;
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1120
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1116
  *                             nodes_isteps_away_buffer[key] = frontier_nodes
  * 
  *                         for (i, alt, pathlen) in frontier_nodes:             # <<<<<<<<<<<<<<
@@ -47348,41 +49088,41 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
  *             frontier = new_frontier
  */
           if (PyList_CheckExact(__pyx_cur_scope->__pyx_v_frontier_nodes) || PyTuple_CheckExact(__pyx_cur_scope->__pyx_v_frontier_nodes)) {
-            __pyx_t_15 = __pyx_cur_scope->__pyx_v_frontier_nodes; __Pyx_INCREF(__pyx_t_15); __pyx_t_21 = 0;
-            __pyx_t_27 = NULL;
+            __pyx_t_2 = __pyx_cur_scope->__pyx_v_frontier_nodes; __Pyx_INCREF(__pyx_t_2); __pyx_t_21 = 0;
+            __pyx_t_31 = NULL;
           } else {
-            __pyx_t_21 = -1; __pyx_t_15 = PyObject_GetIter(__pyx_cur_scope->__pyx_v_frontier_nodes); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1120; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-            __Pyx_GOTREF(__pyx_t_15);
-            __pyx_t_27 = Py_TYPE(__pyx_t_15)->tp_iternext;
+            __pyx_t_21 = -1; __pyx_t_2 = PyObject_GetIter(__pyx_cur_scope->__pyx_v_frontier_nodes); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1116; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __Pyx_GOTREF(__pyx_t_2);
+            __pyx_t_31 = Py_TYPE(__pyx_t_2)->tp_iternext;
           }
           for (;;) {
-            if (!__pyx_t_27 && PyList_CheckExact(__pyx_t_15)) {
-              if (__pyx_t_21 >= PyList_GET_SIZE(__pyx_t_15)) break;
+            if (!__pyx_t_31 && PyList_CheckExact(__pyx_t_2)) {
+              if (__pyx_t_21 >= PyList_GET_SIZE(__pyx_t_2)) break;
               #if CYTHON_COMPILING_IN_CPYTHON
-              __pyx_t_3 = PyList_GET_ITEM(__pyx_t_15, __pyx_t_21); __Pyx_INCREF(__pyx_t_3); __pyx_t_21++;
+              __pyx_t_15 = PyList_GET_ITEM(__pyx_t_2, __pyx_t_21); __Pyx_INCREF(__pyx_t_15); __pyx_t_21++;
               #else
-              __pyx_t_3 = PySequence_ITEM(__pyx_t_15, __pyx_t_21); __pyx_t_21++; if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1120; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+              __pyx_t_15 = PySequence_ITEM(__pyx_t_2, __pyx_t_21); __pyx_t_21++; if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1116; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
               #endif
-            } else if (!__pyx_t_27 && PyTuple_CheckExact(__pyx_t_15)) {
-              if (__pyx_t_21 >= PyTuple_GET_SIZE(__pyx_t_15)) break;
+            } else if (!__pyx_t_31 && PyTuple_CheckExact(__pyx_t_2)) {
+              if (__pyx_t_21 >= PyTuple_GET_SIZE(__pyx_t_2)) break;
               #if CYTHON_COMPILING_IN_CPYTHON
-              __pyx_t_3 = PyTuple_GET_ITEM(__pyx_t_15, __pyx_t_21); __Pyx_INCREF(__pyx_t_3); __pyx_t_21++;
+              __pyx_t_15 = PyTuple_GET_ITEM(__pyx_t_2, __pyx_t_21); __Pyx_INCREF(__pyx_t_15); __pyx_t_21++;
               #else
-              __pyx_t_3 = PySequence_ITEM(__pyx_t_15, __pyx_t_21); __pyx_t_21++; if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1120; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+              __pyx_t_15 = PySequence_ITEM(__pyx_t_2, __pyx_t_21); __pyx_t_21++; if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1116; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
               #endif
             } else {
-              __pyx_t_3 = __pyx_t_27(__pyx_t_15);
-              if (unlikely(!__pyx_t_3)) {
+              __pyx_t_15 = __pyx_t_31(__pyx_t_2);
+              if (unlikely(!__pyx_t_15)) {
                 if (PyErr_Occurred()) {
                   if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-                  else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1120; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1116; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 }
                 break;
               }
-              __Pyx_GOTREF(__pyx_t_3);
+              __Pyx_GOTREF(__pyx_t_15);
             }
-            if ((likely(PyTuple_CheckExact(__pyx_t_3))) || (PyList_CheckExact(__pyx_t_3))) {
-              PyObject* sequence = __pyx_t_3;
+            if ((likely(PyTuple_CheckExact(__pyx_t_15))) || (PyList_CheckExact(__pyx_t_15))) {
+              PyObject* sequence = __pyx_t_15;
               #if CYTHON_COMPILING_IN_CPYTHON
               Py_ssize_t size = Py_SIZE(sequence);
               #else
@@ -47391,124 +49131,124 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
               if (unlikely(size != 3)) {
                 if (size > 3) __Pyx_RaiseTooManyValuesError(3);
                 else if (size >= 0) __Pyx_RaiseNeedMoreValuesError(size);
-                {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1120; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1116; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               }
               #if CYTHON_COMPILING_IN_CPYTHON
               if (likely(PyTuple_CheckExact(sequence))) {
-                __pyx_t_10 = PyTuple_GET_ITEM(sequence, 0); 
+                __pyx_t_14 = PyTuple_GET_ITEM(sequence, 0); 
                 __pyx_t_9 = PyTuple_GET_ITEM(sequence, 1); 
-                __pyx_t_2 = PyTuple_GET_ITEM(sequence, 2); 
+                __pyx_t_3 = PyTuple_GET_ITEM(sequence, 2); 
               } else {
-                __pyx_t_10 = PyList_GET_ITEM(sequence, 0); 
+                __pyx_t_14 = PyList_GET_ITEM(sequence, 0); 
                 __pyx_t_9 = PyList_GET_ITEM(sequence, 1); 
-                __pyx_t_2 = PyList_GET_ITEM(sequence, 2); 
+                __pyx_t_3 = PyList_GET_ITEM(sequence, 2); 
               }
-              __Pyx_INCREF(__pyx_t_10);
+              __Pyx_INCREF(__pyx_t_14);
               __Pyx_INCREF(__pyx_t_9);
-              __Pyx_INCREF(__pyx_t_2);
+              __Pyx_INCREF(__pyx_t_3);
               #else
-              __pyx_t_10 = PySequence_ITEM(sequence, 0); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1120; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-              __pyx_t_9 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1120; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-              __pyx_t_2 = PySequence_ITEM(sequence, 2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1120; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_14 = PySequence_ITEM(sequence, 0); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1116; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_9 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1116; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_3 = PySequence_ITEM(sequence, 2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1116; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               #endif
-              __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+              __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
             } else
             {
               Py_ssize_t index = -1;
-              __pyx_t_14 = PyObject_GetIter(__pyx_t_3); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1120; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-              __Pyx_GOTREF(__pyx_t_14);
-              __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-              __pyx_t_17 = Py_TYPE(__pyx_t_14)->tp_iternext;
-              index = 0; __pyx_t_10 = __pyx_t_17(__pyx_t_14); if (unlikely(!__pyx_t_10)) goto __pyx_L68_unpacking_failed;
+              __pyx_t_10 = PyObject_GetIter(__pyx_t_15); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1116; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_10);
-              index = 1; __pyx_t_9 = __pyx_t_17(__pyx_t_14); if (unlikely(!__pyx_t_9)) goto __pyx_L68_unpacking_failed;
+              __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
+              __pyx_t_17 = Py_TYPE(__pyx_t_10)->tp_iternext;
+              index = 0; __pyx_t_14 = __pyx_t_17(__pyx_t_10); if (unlikely(!__pyx_t_14)) goto __pyx_L66_unpacking_failed;
+              __Pyx_GOTREF(__pyx_t_14);
+              index = 1; __pyx_t_9 = __pyx_t_17(__pyx_t_10); if (unlikely(!__pyx_t_9)) goto __pyx_L66_unpacking_failed;
               __Pyx_GOTREF(__pyx_t_9);
-              index = 2; __pyx_t_2 = __pyx_t_17(__pyx_t_14); if (unlikely(!__pyx_t_2)) goto __pyx_L68_unpacking_failed;
-              __Pyx_GOTREF(__pyx_t_2);
-              if (__Pyx_IternextUnpackEndCheck(__pyx_t_17(__pyx_t_14), 3) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1120; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              index = 2; __pyx_t_3 = __pyx_t_17(__pyx_t_10); if (unlikely(!__pyx_t_3)) goto __pyx_L66_unpacking_failed;
+              __Pyx_GOTREF(__pyx_t_3);
+              if (__Pyx_IternextUnpackEndCheck(__pyx_t_17(__pyx_t_10), 3) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1116; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __pyx_t_17 = NULL;
-              __Pyx_DECREF(__pyx_t_14); __pyx_t_14 = 0;
-              goto __pyx_L69_unpacking_done;
-              __pyx_L68_unpacking_failed:;
-              __Pyx_DECREF(__pyx_t_14); __pyx_t_14 = 0;
+              __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
+              goto __pyx_L67_unpacking_done;
+              __pyx_L66_unpacking_failed:;
+              __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
               __pyx_t_17 = NULL;
               if (__Pyx_IterFinish() == 0) __Pyx_RaiseNeedMoreValuesError(index);
-              {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1120; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-              __pyx_L69_unpacking_done:;
+              {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1116; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_L67_unpacking_done:;
             }
-            __pyx_t_18 = __Pyx_PyInt_AsInt(__pyx_t_10); if (unlikely((__pyx_t_18 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1120; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-            __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-            __pyx_t_6 = __Pyx_PyInt_AsInt(__pyx_t_9); if (unlikely((__pyx_t_6 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1120; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_18 = __Pyx_PyInt_AsInt(__pyx_t_14); if (unlikely((__pyx_t_18 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1116; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __Pyx_DECREF(__pyx_t_14); __pyx_t_14 = 0;
+            __pyx_t_6 = __Pyx_PyInt_AsInt(__pyx_t_9); if (unlikely((__pyx_t_6 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1116; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
             __pyx_cur_scope->__pyx_v_i = __pyx_t_18;
             __pyx_cur_scope->__pyx_v_alt = __pyx_t_6;
             __Pyx_GOTREF(__pyx_cur_scope->__pyx_v_pathlen);
             __Pyx_DECREF(__pyx_cur_scope->__pyx_v_pathlen);
-            __Pyx_GIVEREF(__pyx_t_2);
-            __pyx_cur_scope->__pyx_v_pathlen = __pyx_t_2;
-            __pyx_t_2 = 0;
+            __Pyx_GIVEREF(__pyx_t_3);
+            __pyx_cur_scope->__pyx_v_pathlen = __pyx_t_3;
+            __pyx_t_3 = 0;
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1121
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1117
  * 
  *                         for (i, alt, pathlen) in frontier_nodes:
  *                             new_frontier.append((k, i, alt, pathlen, xnode, phrase +(xcat,), is_shadow_path))             # <<<<<<<<<<<<<<
  *             frontier = new_frontier
  * 
  */
-            __pyx_t_3 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_k); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1121; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_15 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_k); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1117; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __Pyx_GOTREF(__pyx_t_15);
+            __pyx_t_3 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1117; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_3);
-            __pyx_t_2 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1121; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-            __Pyx_GOTREF(__pyx_t_2);
-            __pyx_t_9 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_alt); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1121; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_9 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_alt); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1117; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_9);
-            __pyx_t_10 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_xcat); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1121; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-            __Pyx_GOTREF(__pyx_t_10);
-            __pyx_t_14 = PyTuple_New(1); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1121; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_14 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_xcat); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1117; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_14);
-            PyTuple_SET_ITEM(__pyx_t_14, 0, __pyx_t_10);
-            __Pyx_GIVEREF(__pyx_t_10);
-            __pyx_t_10 = 0;
-            __pyx_t_10 = PyNumber_Add(__pyx_cur_scope->__pyx_v_phrase, ((PyObject *)__pyx_t_14)); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1121; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_10 = PyTuple_New(1); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1117; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_10);
-            __Pyx_DECREF(((PyObject *)__pyx_t_14)); __pyx_t_14 = 0;
-            __pyx_t_14 = PyTuple_New(7); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1121; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            PyTuple_SET_ITEM(__pyx_t_10, 0, __pyx_t_14);
+            __Pyx_GIVEREF(__pyx_t_14);
+            __pyx_t_14 = 0;
+            __pyx_t_14 = PyNumber_Add(__pyx_cur_scope->__pyx_v_phrase, ((PyObject *)__pyx_t_10)); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1117; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_14);
-            PyTuple_SET_ITEM(__pyx_t_14, 0, __pyx_t_3);
+            __Pyx_DECREF(((PyObject *)__pyx_t_10)); __pyx_t_10 = 0;
+            __pyx_t_10 = PyTuple_New(7); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1117; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __Pyx_GOTREF(__pyx_t_10);
+            PyTuple_SET_ITEM(__pyx_t_10, 0, __pyx_t_15);
+            __Pyx_GIVEREF(__pyx_t_15);
+            PyTuple_SET_ITEM(__pyx_t_10, 1, __pyx_t_3);
             __Pyx_GIVEREF(__pyx_t_3);
-            PyTuple_SET_ITEM(__pyx_t_14, 1, __pyx_t_2);
-            __Pyx_GIVEREF(__pyx_t_2);
-            PyTuple_SET_ITEM(__pyx_t_14, 2, __pyx_t_9);
+            PyTuple_SET_ITEM(__pyx_t_10, 2, __pyx_t_9);
             __Pyx_GIVEREF(__pyx_t_9);
             __Pyx_INCREF(__pyx_cur_scope->__pyx_v_pathlen);
-            PyTuple_SET_ITEM(__pyx_t_14, 3, __pyx_cur_scope->__pyx_v_pathlen);
+            PyTuple_SET_ITEM(__pyx_t_10, 3, __pyx_cur_scope->__pyx_v_pathlen);
             __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_pathlen);
             __Pyx_INCREF(__pyx_cur_scope->__pyx_v_xnode);
-            PyTuple_SET_ITEM(__pyx_t_14, 4, __pyx_cur_scope->__pyx_v_xnode);
+            PyTuple_SET_ITEM(__pyx_t_10, 4, __pyx_cur_scope->__pyx_v_xnode);
             __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_xnode);
-            PyTuple_SET_ITEM(__pyx_t_14, 5, __pyx_t_10);
-            __Pyx_GIVEREF(__pyx_t_10);
+            PyTuple_SET_ITEM(__pyx_t_10, 5, __pyx_t_14);
+            __Pyx_GIVEREF(__pyx_t_14);
             __Pyx_INCREF(__pyx_cur_scope->__pyx_v_is_shadow_path);
-            PyTuple_SET_ITEM(__pyx_t_14, 6, __pyx_cur_scope->__pyx_v_is_shadow_path);
+            PyTuple_SET_ITEM(__pyx_t_10, 6, __pyx_cur_scope->__pyx_v_is_shadow_path);
             __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_is_shadow_path);
+            __pyx_t_15 = 0;
             __pyx_t_3 = 0;
-            __pyx_t_2 = 0;
             __pyx_t_9 = 0;
-            __pyx_t_10 = 0;
-            __pyx_t_11 = PyList_Append(__pyx_cur_scope->__pyx_v_new_frontier, ((PyObject *)__pyx_t_14)); if (unlikely(__pyx_t_11 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1121; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-            __Pyx_DECREF(((PyObject *)__pyx_t_14)); __pyx_t_14 = 0;
+            __pyx_t_14 = 0;
+            __pyx_t_11 = PyList_Append(__pyx_cur_scope->__pyx_v_new_frontier, ((PyObject *)__pyx_t_10)); if (unlikely(__pyx_t_11 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1117; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __Pyx_DECREF(((PyObject *)__pyx_t_10)); __pyx_t_10 = 0;
           }
-          __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
-          goto __pyx_L64;
+          __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+          goto __pyx_L62;
         }
-        __pyx_L64:;
-        goto __pyx_L60;
+        __pyx_L62:;
+        goto __pyx_L58;
       }
-      __pyx_L60:;
+      __pyx_L58:;
       __pyx_L19_continue:;
     }
     __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1122
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1118
  *                         for (i, alt, pathlen) in frontier_nodes:
  *                             new_frontier.append((k, i, alt, pathlen, xnode, phrase +(xcat,), is_shadow_path))
  *             frontier = new_frontier             # <<<<<<<<<<<<<<
@@ -47522,94 +49262,94 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
     __pyx_cur_scope->__pyx_v_frontier = __pyx_cur_scope->__pyx_v_new_frontier;
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1124
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1120
  *             frontier = new_frontier
  * 
  *         stop_time = monitor_cpu()             # <<<<<<<<<<<<<<
  *         logger.info("Total time for rule lookup, extraction, and scoring = %f seconds", (stop_time - start_time))
  *         gc.collect()
  */
-  __pyx_t_12 = PyFloat_FromDouble(__pyx_f_3_sa_monitor_cpu()); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1124; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_12 = PyFloat_FromDouble(__pyx_f_3_sa_monitor_cpu()); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1120; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_12);
   __Pyx_GIVEREF(__pyx_t_12);
   __pyx_cur_scope->__pyx_v_stop_time = __pyx_t_12;
   __pyx_t_12 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1125
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1121
  * 
  *         stop_time = monitor_cpu()
  *         logger.info("Total time for rule lookup, extraction, and scoring = %f seconds", (stop_time - start_time))             # <<<<<<<<<<<<<<
  *         gc.collect()
  *         logger.info("    Extract time = %f seconds", self.extract_time)
  */
-  __pyx_t_12 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1125; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_12 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1121; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_12);
-  __pyx_t_15 = PyObject_GetAttr(__pyx_t_12, __pyx_n_s__info); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1125; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_15);
+  __pyx_t_2 = PyObject_GetAttr(__pyx_t_12, __pyx_n_s__info); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1121; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
-  __pyx_t_12 = PyFloat_FromDouble(__pyx_cur_scope->__pyx_v_start_time); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1125; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_12 = PyFloat_FromDouble(__pyx_cur_scope->__pyx_v_start_time); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1121; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_12);
-  __pyx_t_14 = PyNumber_Subtract(__pyx_cur_scope->__pyx_v_stop_time, __pyx_t_12); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1125; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_14);
+  __pyx_t_10 = PyNumber_Subtract(__pyx_cur_scope->__pyx_v_stop_time, __pyx_t_12); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1121; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_10);
   __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
-  __pyx_t_12 = PyTuple_New(2); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1125; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_12 = PyTuple_New(2); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1121; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_12);
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_124));
-  PyTuple_SET_ITEM(__pyx_t_12, 0, ((PyObject *)__pyx_kp_s_124));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_124));
-  PyTuple_SET_ITEM(__pyx_t_12, 1, __pyx_t_14);
-  __Pyx_GIVEREF(__pyx_t_14);
-  __pyx_t_14 = 0;
-  __pyx_t_14 = PyObject_Call(__pyx_t_15, ((PyObject *)__pyx_t_12), NULL); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1125; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_14);
-  __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
+  __Pyx_INCREF(((PyObject *)__pyx_kp_s_126));
+  PyTuple_SET_ITEM(__pyx_t_12, 0, ((PyObject *)__pyx_kp_s_126));
+  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_126));
+  PyTuple_SET_ITEM(__pyx_t_12, 1, __pyx_t_10);
+  __Pyx_GIVEREF(__pyx_t_10);
+  __pyx_t_10 = 0;
+  __pyx_t_10 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_12), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1121; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_10);
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __Pyx_DECREF(((PyObject *)__pyx_t_12)); __pyx_t_12 = 0;
-  __Pyx_DECREF(__pyx_t_14); __pyx_t_14 = 0;
+  __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1126
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1122
  *         stop_time = monitor_cpu()
  *         logger.info("Total time for rule lookup, extraction, and scoring = %f seconds", (stop_time - start_time))
  *         gc.collect()             # <<<<<<<<<<<<<<
  *         logger.info("    Extract time = %f seconds", self.extract_time)
  * 
  */
-  __pyx_t_14 = __Pyx_GetName(__pyx_m, __pyx_n_s__gc); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1126; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_14);
-  __pyx_t_12 = PyObject_GetAttr(__pyx_t_14, __pyx_n_s__collect); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1126; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_10 = __Pyx_GetName(__pyx_m, __pyx_n_s__gc); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1122; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_10);
+  __pyx_t_12 = PyObject_GetAttr(__pyx_t_10, __pyx_n_s__collect); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1122; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_12);
-  __Pyx_DECREF(__pyx_t_14); __pyx_t_14 = 0;
-  __pyx_t_14 = PyObject_Call(__pyx_t_12, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1126; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_14);
+  __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
+  __pyx_t_10 = PyObject_Call(__pyx_t_12, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1122; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_10);
   __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
-  __Pyx_DECREF(__pyx_t_14); __pyx_t_14 = 0;
+  __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1127
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1123
  *         logger.info("Total time for rule lookup, extraction, and scoring = %f seconds", (stop_time - start_time))
  *         gc.collect()
  *         logger.info("    Extract time = %f seconds", self.extract_time)             # <<<<<<<<<<<<<<
  * 
  * 
  */
-  __pyx_t_14 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1127; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_14);
-  __pyx_t_12 = PyObject_GetAttr(__pyx_t_14, __pyx_n_s__info); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1127; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_10 = __Pyx_GetName(__pyx_m, __pyx_n_s__logger); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1123; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_10);
+  __pyx_t_12 = PyObject_GetAttr(__pyx_t_10, __pyx_n_s__info); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1123; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_12);
-  __Pyx_DECREF(__pyx_t_14); __pyx_t_14 = 0;
-  __pyx_t_14 = PyFloat_FromDouble(__pyx_cur_scope->__pyx_v_self->extract_time); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1127; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_14);
-  __pyx_t_15 = PyTuple_New(2); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1127; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_15);
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_125));
-  PyTuple_SET_ITEM(__pyx_t_15, 0, ((PyObject *)__pyx_kp_s_125));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_125));
-  PyTuple_SET_ITEM(__pyx_t_15, 1, __pyx_t_14);
-  __Pyx_GIVEREF(__pyx_t_14);
-  __pyx_t_14 = 0;
-  __pyx_t_14 = PyObject_Call(__pyx_t_12, ((PyObject *)__pyx_t_15), NULL); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1127; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_14);
+  __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
+  __pyx_t_10 = PyFloat_FromDouble(__pyx_cur_scope->__pyx_v_self->extract_time); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1123; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_10);
+  __pyx_t_2 = PyTuple_New(2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1123; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __Pyx_INCREF(((PyObject *)__pyx_kp_s_127));
+  PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_kp_s_127));
+  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_127));
+  PyTuple_SET_ITEM(__pyx_t_2, 1, __pyx_t_10);
+  __Pyx_GIVEREF(__pyx_t_10);
+  __pyx_t_10 = 0;
+  __pyx_t_10 = PyObject_Call(__pyx_t_12, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1123; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_10);
   __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
-  __Pyx_DECREF(((PyObject *)__pyx_t_15)); __pyx_t_15 = 0;
-  __Pyx_DECREF(__pyx_t_14); __pyx_t_14 = 0;
+  __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
+  __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
   PyErr_SetNone(PyExc_StopIteration);
   goto __pyx_L0;
   __pyx_L1_error:;
@@ -47632,7 +49372,7 @@ static PyObject *__pyx_gb_3_sa_23HieroCachingRuleFactory_24generator2(__pyx_Gene
   return NULL;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1130
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1126
  * 
  * 
  *     cdef int find_fixpoint(self,             # <<<<<<<<<<<<<<
@@ -47662,7 +49402,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("find_fixpoint", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1145
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1141
  *         cdef int e_low_prev, e_high_prev, f_low_prev, f_high_prev, new_x, new_low_x, new_high_x
  * 
  *         e_low[0] = e_in_low             # <<<<<<<<<<<<<<
@@ -47671,7 +49411,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
  */
   (__pyx_v_e_low[0]) = __pyx_v_e_in_low;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1146
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1142
  * 
  *         e_low[0] = e_in_low
  *         e_high[0] = e_in_high             # <<<<<<<<<<<<<<
@@ -47680,19 +49420,19 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
  */
   (__pyx_v_e_high[0]) = __pyx_v_e_in_high;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1147
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1143
  *         e_low[0] = e_in_low
  *         e_high[0] = e_in_high
  *         self.find_projection(f_low, f_high, f_links_low, f_links_high, e_low, e_high)             # <<<<<<<<<<<<<<
  *         if e_low[0] == -1:
  *             # low-priority corner case: if phrase w is unaligned,
  */
-  __pyx_t_1 = __Pyx_PyInt_AsInt(__pyx_v_f_high); if (unlikely((__pyx_t_1 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1147; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_t_2 = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->find_projection(__pyx_v_self, __pyx_v_f_low, __pyx_t_1, __pyx_v_f_links_low, __pyx_v_f_links_high, __pyx_v_e_low, __pyx_v_e_high); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1147; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_PyInt_AsInt(__pyx_v_f_high); if (unlikely((__pyx_t_1 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1143; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->find_projection(__pyx_v_self, __pyx_v_f_low, __pyx_t_1, __pyx_v_f_links_low, __pyx_v_f_links_high, __pyx_v_e_low, __pyx_v_e_high); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1143; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1148
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1144
  *         e_high[0] = e_in_high
  *         self.find_projection(f_low, f_high, f_links_low, f_links_high, e_low, e_high)
  *         if e_low[0] == -1:             # <<<<<<<<<<<<<<
@@ -47702,7 +49442,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
   __pyx_t_3 = ((__pyx_v_e_low[0]) == -1);
   if (__pyx_t_3) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1154
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1150
  *             # rule X -> X_1 w X_2 / X_1 X_2.    This is probably
  *             # not worth the bother, though.
  *             return 0             # <<<<<<<<<<<<<<
@@ -47714,7 +49454,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
     goto __pyx_L3;
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1155
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1151
  *             # not worth the bother, though.
  *             return 0
  *         elif e_in_low != -1 and e_low[0] != e_in_low:             # <<<<<<<<<<<<<<
@@ -47730,7 +49470,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
   }
   if (__pyx_t_5) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1156
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1152
  *             return 0
  *         elif e_in_low != -1 and e_low[0] != e_in_low:
  *             if e_in_low - e_low[0] < min_ex_size:             # <<<<<<<<<<<<<<
@@ -47740,7 +49480,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
     __pyx_t_5 = ((__pyx_v_e_in_low - (__pyx_v_e_low[0])) < __pyx_v_min_ex_size);
     if (__pyx_t_5) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1157
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1153
  *         elif e_in_low != -1 and e_low[0] != e_in_low:
  *             if e_in_low - e_low[0] < min_ex_size:
  *                 e_low[0] = e_in_low - min_ex_size             # <<<<<<<<<<<<<<
@@ -47749,7 +49489,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
  */
       (__pyx_v_e_low[0]) = (__pyx_v_e_in_low - __pyx_v_min_ex_size);
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1158
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1154
  *             if e_in_low - e_low[0] < min_ex_size:
  *                 e_low[0] = e_in_low - min_ex_size
  *                 if e_low[0] < 0:             # <<<<<<<<<<<<<<
@@ -47759,7 +49499,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
       __pyx_t_5 = ((__pyx_v_e_low[0]) < 0);
       if (__pyx_t_5) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1159
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1155
  *                 e_low[0] = e_in_low - min_ex_size
  *                 if e_low[0] < 0:
  *                     return 0             # <<<<<<<<<<<<<<
@@ -47778,7 +49518,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
   }
   __pyx_L3:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1161
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1157
  *                     return 0
  * 
  *         if e_high[0] - e_low[0] > max_e_len:             # <<<<<<<<<<<<<<
@@ -47788,7 +49528,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
   __pyx_t_5 = (((__pyx_v_e_high[0]) - (__pyx_v_e_low[0])) > __pyx_v_max_e_len);
   if (__pyx_t_5) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1162
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1158
  * 
  *         if e_high[0] - e_low[0] > max_e_len:
  *             return 0             # <<<<<<<<<<<<<<
@@ -47800,7 +49540,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
     goto __pyx_L6;
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1163
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1159
  *         if e_high[0] - e_low[0] > max_e_len:
  *             return 0
  *         elif e_in_high != -1 and e_high[0] != e_in_high:             # <<<<<<<<<<<<<<
@@ -47816,7 +49556,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
   }
   if (__pyx_t_4) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1164
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1160
  *             return 0
  *         elif e_in_high != -1 and e_high[0] != e_in_high:
  *             if e_high[0] - e_in_high < min_ex_size:             # <<<<<<<<<<<<<<
@@ -47826,7 +49566,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
     __pyx_t_4 = (((__pyx_v_e_high[0]) - __pyx_v_e_in_high) < __pyx_v_min_ex_size);
     if (__pyx_t_4) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1165
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1161
  *         elif e_in_high != -1 and e_high[0] != e_in_high:
  *             if e_high[0] - e_in_high < min_ex_size:
  *                 e_high[0] = e_in_high + min_ex_size             # <<<<<<<<<<<<<<
@@ -47835,7 +49575,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
  */
       (__pyx_v_e_high[0]) = (__pyx_v_e_in_high + __pyx_v_min_ex_size);
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1166
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1162
  *             if e_high[0] - e_in_high < min_ex_size:
  *                 e_high[0] = e_in_high + min_ex_size
  *                 if e_high[0] > e_sent_len:             # <<<<<<<<<<<<<<
@@ -47845,7 +49585,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
       __pyx_t_4 = ((__pyx_v_e_high[0]) > __pyx_v_e_sent_len);
       if (__pyx_t_4) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1167
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1163
  *                 e_high[0] = e_in_high + min_ex_size
  *                 if e_high[0] > e_sent_len:
  *                     return 0             # <<<<<<<<<<<<<<
@@ -47864,7 +49604,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
   }
   __pyx_L6:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1169
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1165
  *                     return 0
  * 
  *         f_back_low[0] = -1             # <<<<<<<<<<<<<<
@@ -47873,7 +49613,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
  */
   (__pyx_v_f_back_low[0]) = -1;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1170
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1166
  * 
  *         f_back_low[0] = -1
  *         f_back_high[0] = -1             # <<<<<<<<<<<<<<
@@ -47882,7 +49622,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
  */
   (__pyx_v_f_back_high[0]) = -1;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1171
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1167
  *         f_back_low[0] = -1
  *         f_back_high[0] = -1
  *         f_low_prev = f_low             # <<<<<<<<<<<<<<
@@ -47891,17 +49631,17 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
  */
   __pyx_v_f_low_prev = __pyx_v_f_low;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1172
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1168
  *         f_back_high[0] = -1
  *         f_low_prev = f_low
  *         f_high_prev = f_high             # <<<<<<<<<<<<<<
  *         new_x = 0
  *         new_low_x = 0
  */
-  __pyx_t_1 = __Pyx_PyInt_AsInt(__pyx_v_f_high); if (unlikely((__pyx_t_1 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1172; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_PyInt_AsInt(__pyx_v_f_high); if (unlikely((__pyx_t_1 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1168; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_v_f_high_prev = __pyx_t_1;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1173
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1169
  *         f_low_prev = f_low
  *         f_high_prev = f_high
  *         new_x = 0             # <<<<<<<<<<<<<<
@@ -47910,7 +49650,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
  */
   __pyx_v_new_x = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1174
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1170
  *         f_high_prev = f_high
  *         new_x = 0
  *         new_low_x = 0             # <<<<<<<<<<<<<<
@@ -47919,7 +49659,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
  */
   __pyx_v_new_low_x = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1175
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1171
  *         new_x = 0
  *         new_low_x = 0
  *         new_high_x = 0             # <<<<<<<<<<<<<<
@@ -47928,7 +49668,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
  */
   __pyx_v_new_high_x = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1177
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1173
  *         new_high_x = 0
  * 
  *         while True:             # <<<<<<<<<<<<<<
@@ -47938,7 +49678,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
   while (1) {
     if (!1) break;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1179
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1175
  *         while True:
  * 
  *             if f_back_low[0] == -1:             # <<<<<<<<<<<<<<
@@ -47948,45 +49688,45 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
     __pyx_t_4 = ((__pyx_v_f_back_low[0]) == -1);
     if (__pyx_t_4) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1180
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1176
  * 
  *             if f_back_low[0] == -1:
  *                 self.find_projection(e_low[0], e_high[0], e_links_low, e_links_high, f_back_low, f_back_high)             # <<<<<<<<<<<<<<
  *             else:
  *                 self.find_projection(e_low[0], e_low_prev, e_links_low, e_links_high, f_back_low, f_back_high)
  */
-      __pyx_t_2 = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->find_projection(__pyx_v_self, (__pyx_v_e_low[0]), (__pyx_v_e_high[0]), __pyx_v_e_links_low, __pyx_v_e_links_high, __pyx_v_f_back_low, __pyx_v_f_back_high); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1180; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->find_projection(__pyx_v_self, (__pyx_v_e_low[0]), (__pyx_v_e_high[0]), __pyx_v_e_links_low, __pyx_v_e_links_high, __pyx_v_f_back_low, __pyx_v_f_back_high); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1176; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       goto __pyx_L11;
     }
     /*else*/ {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1182
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1178
  *                 self.find_projection(e_low[0], e_high[0], e_links_low, e_links_high, f_back_low, f_back_high)
  *             else:
  *                 self.find_projection(e_low[0], e_low_prev, e_links_low, e_links_high, f_back_low, f_back_high)             # <<<<<<<<<<<<<<
  *                 self.find_projection(e_high_prev, e_high[0], e_links_low, e_links_high, f_back_low, f_back_high)
  * 
  */
-      __pyx_t_2 = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->find_projection(__pyx_v_self, (__pyx_v_e_low[0]), __pyx_v_e_low_prev, __pyx_v_e_links_low, __pyx_v_e_links_high, __pyx_v_f_back_low, __pyx_v_f_back_high); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1182; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->find_projection(__pyx_v_self, (__pyx_v_e_low[0]), __pyx_v_e_low_prev, __pyx_v_e_links_low, __pyx_v_e_links_high, __pyx_v_f_back_low, __pyx_v_f_back_high); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1178; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1183
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1179
  *             else:
  *                 self.find_projection(e_low[0], e_low_prev, e_links_low, e_links_high, f_back_low, f_back_high)
  *                 self.find_projection(e_high_prev, e_high[0], e_links_low, e_links_high, f_back_low, f_back_high)             # <<<<<<<<<<<<<<
  * 
  *             if f_back_low[0] > f_low:
  */
-      __pyx_t_2 = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->find_projection(__pyx_v_self, __pyx_v_e_high_prev, (__pyx_v_e_high[0]), __pyx_v_e_links_low, __pyx_v_e_links_high, __pyx_v_f_back_low, __pyx_v_f_back_high); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1183; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->find_projection(__pyx_v_self, __pyx_v_e_high_prev, (__pyx_v_e_high[0]), __pyx_v_e_links_low, __pyx_v_e_links_high, __pyx_v_f_back_low, __pyx_v_f_back_high); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1179; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     }
     __pyx_L11:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1185
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1181
  *                 self.find_projection(e_high_prev, e_high[0], e_links_low, e_links_high, f_back_low, f_back_high)
  * 
  *             if f_back_low[0] > f_low:             # <<<<<<<<<<<<<<
@@ -47996,7 +49736,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
     __pyx_t_4 = ((__pyx_v_f_back_low[0]) > __pyx_v_f_low);
     if (__pyx_t_4) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1186
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1182
  * 
  *             if f_back_low[0] > f_low:
  *                 f_back_low[0] = f_low             # <<<<<<<<<<<<<<
@@ -48008,36 +49748,36 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
     }
     __pyx_L12:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1188
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1184
  *                 f_back_low[0] = f_low
  * 
  *             if f_back_high[0] < f_high:             # <<<<<<<<<<<<<<
  *                 f_back_high[0] = f_high
  * 
  */
-    __pyx_t_2 = PyInt_FromLong((__pyx_v_f_back_high[0])); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1188; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyInt_FromLong((__pyx_v_f_back_high[0])); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1184; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_6 = PyObject_RichCompare(__pyx_t_2, __pyx_v_f_high, Py_LT); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1188; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = PyObject_RichCompare(__pyx_t_2, __pyx_v_f_high, Py_LT); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1184; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_6); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1188; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_6); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1184; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
     if (__pyx_t_4) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1189
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1185
  * 
  *             if f_back_high[0] < f_high:
  *                 f_back_high[0] = f_high             # <<<<<<<<<<<<<<
  * 
  *             if f_back_low[0] == f_low_prev and f_back_high[0] == f_high_prev:
  */
-      __pyx_t_1 = __Pyx_PyInt_AsInt(__pyx_v_f_high); if (unlikely((__pyx_t_1 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1189; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = __Pyx_PyInt_AsInt(__pyx_v_f_high); if (unlikely((__pyx_t_1 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1185; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       (__pyx_v_f_back_high[0]) = __pyx_t_1;
       goto __pyx_L13;
     }
     __pyx_L13:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1191
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1187
  *                 f_back_high[0] = f_high
  * 
  *             if f_back_low[0] == f_low_prev and f_back_high[0] == f_high_prev:             # <<<<<<<<<<<<<<
@@ -48053,7 +49793,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
     }
     if (__pyx_t_3) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1192
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1188
  * 
  *             if f_back_low[0] == f_low_prev and f_back_high[0] == f_high_prev:
  *                 return 1             # <<<<<<<<<<<<<<
@@ -48066,7 +49806,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
     }
     __pyx_L14:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1194
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1190
  *                 return 1
  * 
  *             if allow_low_x == 0 and f_back_low[0] < f_low:             # <<<<<<<<<<<<<<
@@ -48082,7 +49822,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
     }
     if (__pyx_t_5) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1196
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1192
  *             if allow_low_x == 0 and f_back_low[0] < f_low:
  *                 # FAIL: f phrase is not tight
  *                 return 0             # <<<<<<<<<<<<<<
@@ -48095,7 +49835,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
     }
     __pyx_L15:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1198
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1194
  *                 return 0
  * 
  *             if f_back_high[0] - f_back_low[0] > max_f_len:             # <<<<<<<<<<<<<<
@@ -48105,7 +49845,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
     __pyx_t_5 = (((__pyx_v_f_back_high[0]) - (__pyx_v_f_back_low[0])) > __pyx_v_max_f_len);
     if (__pyx_t_5) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1200
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1196
  *             if f_back_high[0] - f_back_low[0] > max_f_len:
  *                 # FAIL: f back projection is too wide
  *                 return 0             # <<<<<<<<<<<<<<
@@ -48118,7 +49858,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
     }
     __pyx_L16:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1202
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1198
  *                 return 0
  * 
  *             if allow_high_x == 0 and f_back_high[0] > f_high:             # <<<<<<<<<<<<<<
@@ -48127,12 +49867,12 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
  */
     __pyx_t_5 = (__pyx_v_allow_high_x == 0);
     if (__pyx_t_5) {
-      __pyx_t_6 = PyInt_FromLong((__pyx_v_f_back_high[0])); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1202; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = PyInt_FromLong((__pyx_v_f_back_high[0])); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1198; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_6);
-      __pyx_t_2 = PyObject_RichCompare(__pyx_t_6, __pyx_v_f_high, Py_GT); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1202; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyObject_RichCompare(__pyx_t_6, __pyx_v_f_high, Py_GT); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1198; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-      __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1202; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1198; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       __pyx_t_4 = __pyx_t_3;
     } else {
@@ -48140,7 +49880,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
     }
     if (__pyx_t_4) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1204
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1200
  *             if allow_high_x == 0 and f_back_high[0] > f_high:
  *                 # FAIL: extension on high side not allowed
  *                 return 0             # <<<<<<<<<<<<<<
@@ -48153,7 +49893,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
     }
     __pyx_L17:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1206
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1202
  *                 return 0
  * 
  *             if f_low != f_back_low[0]:             # <<<<<<<<<<<<<<
@@ -48163,7 +49903,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
     __pyx_t_4 = (__pyx_v_f_low != (__pyx_v_f_back_low[0]));
     if (__pyx_t_4) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1207
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1203
  * 
  *             if f_low != f_back_low[0]:
  *                 if new_low_x == 0:             # <<<<<<<<<<<<<<
@@ -48173,7 +49913,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
       __pyx_t_4 = (__pyx_v_new_low_x == 0);
       if (__pyx_t_4) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1208
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1204
  *             if f_low != f_back_low[0]:
  *                 if new_low_x == 0:
  *                     if new_x >= max_new_x:             # <<<<<<<<<<<<<<
@@ -48183,7 +49923,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
         __pyx_t_4 = (__pyx_v_new_x >= __pyx_v_max_new_x);
         if (__pyx_t_4) {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1210
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1206
  *                     if new_x >= max_new_x:
  *                         # FAIL: extension required on low side violates max # of gaps
  *                         return 0             # <<<<<<<<<<<<<<
@@ -48196,7 +49936,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
         }
         /*else*/ {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1212
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1208
  *                         return 0
  *                     else:
  *                         new_x = new_x + 1             # <<<<<<<<<<<<<<
@@ -48205,7 +49945,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
  */
           __pyx_v_new_x = (__pyx_v_new_x + 1);
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1213
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1209
  *                     else:
  *                         new_x = new_x + 1
  *                         new_low_x = 1             # <<<<<<<<<<<<<<
@@ -48219,7 +49959,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
       }
       __pyx_L19:;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1214
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1210
  *                         new_x = new_x + 1
  *                         new_low_x = 1
  *                 if f_low - f_back_low[0] < min_fx_size:             # <<<<<<<<<<<<<<
@@ -48229,7 +49969,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
       __pyx_t_4 = ((__pyx_v_f_low - (__pyx_v_f_back_low[0])) < __pyx_v_min_fx_size);
       if (__pyx_t_4) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1215
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1211
  *                         new_low_x = 1
  *                 if f_low - f_back_low[0] < min_fx_size:
  *                     f_back_low[0] = f_low - min_fx_size             # <<<<<<<<<<<<<<
@@ -48238,7 +49978,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
  */
         (__pyx_v_f_back_low[0]) = (__pyx_v_f_low - __pyx_v_min_fx_size);
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1216
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1212
  *                 if f_low - f_back_low[0] < min_fx_size:
  *                     f_back_low[0] = f_low - min_fx_size
  *                     if f_back_high[0] - f_back_low[0] > max_f_len:             # <<<<<<<<<<<<<<
@@ -48248,7 +49988,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
         __pyx_t_4 = (((__pyx_v_f_back_high[0]) - (__pyx_v_f_back_low[0])) > __pyx_v_max_f_len);
         if (__pyx_t_4) {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1218
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1214
  *                     if f_back_high[0] - f_back_low[0] > max_f_len:
  *                         # FAIL: extension required on low side violates max initial length
  *                         return 0             # <<<<<<<<<<<<<<
@@ -48261,7 +50001,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
         }
         __pyx_L22:;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1219
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1215
  *                         # FAIL: extension required on low side violates max initial length
  *                         return 0
  *                     if f_back_low[0] < 0:             # <<<<<<<<<<<<<<
@@ -48271,7 +50011,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
         __pyx_t_4 = ((__pyx_v_f_back_low[0]) < 0);
         if (__pyx_t_4) {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1221
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1217
  *                     if f_back_low[0] < 0:
  *                         # FAIL: extension required on low side violates sentence boundary
  *                         return 0             # <<<<<<<<<<<<<<
@@ -48290,23 +50030,23 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
     }
     __pyx_L18:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1223
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1219
  *                         return 0
  * 
  *             if f_high != f_back_high[0]:             # <<<<<<<<<<<<<<
  *                 if new_high_x == 0:
  *                     if new_x >= max_new_x:
  */
-    __pyx_t_2 = PyInt_FromLong((__pyx_v_f_back_high[0])); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1223; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyInt_FromLong((__pyx_v_f_back_high[0])); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1219; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_6 = PyObject_RichCompare(__pyx_v_f_high, __pyx_t_2, Py_NE); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1223; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = PyObject_RichCompare(__pyx_v_f_high, __pyx_t_2, Py_NE); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1219; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_6); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1223; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_6); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1219; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
     if (__pyx_t_4) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1224
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1220
  * 
  *             if f_high != f_back_high[0]:
  *                 if new_high_x == 0:             # <<<<<<<<<<<<<<
@@ -48316,7 +50056,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
       __pyx_t_4 = (__pyx_v_new_high_x == 0);
       if (__pyx_t_4) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1225
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1221
  *             if f_high != f_back_high[0]:
  *                 if new_high_x == 0:
  *                     if new_x >= max_new_x:             # <<<<<<<<<<<<<<
@@ -48326,7 +50066,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
         __pyx_t_4 = (__pyx_v_new_x >= __pyx_v_max_new_x);
         if (__pyx_t_4) {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1227
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1223
  *                     if new_x >= max_new_x:
  *                         # FAIL: extension required on high side violates max # of gaps
  *                         return 0             # <<<<<<<<<<<<<<
@@ -48339,7 +50079,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
         }
         /*else*/ {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1229
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1225
  *                         return 0
  *                     else:
  *                         new_x = new_x + 1             # <<<<<<<<<<<<<<
@@ -48348,7 +50088,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
  */
           __pyx_v_new_x = (__pyx_v_new_x + 1);
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1230
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1226
  *                     else:
  *                         new_x = new_x + 1
  *                         new_high_x = 1             # <<<<<<<<<<<<<<
@@ -48362,45 +50102,45 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
       }
       __pyx_L25:;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1231
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1227
  *                         new_x = new_x + 1
  *                         new_high_x = 1
  *                 if f_back_high[0] - f_high < min_fx_size:             # <<<<<<<<<<<<<<
  *                     f_back_high[0] = f_high + min_fx_size
  *                     if f_back_high[0] - f_back_low[0] > max_f_len:
  */
-      __pyx_t_6 = PyInt_FromLong((__pyx_v_f_back_high[0])); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1231; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = PyInt_FromLong((__pyx_v_f_back_high[0])); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1227; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_6);
-      __pyx_t_2 = PyNumber_Subtract(__pyx_t_6, __pyx_v_f_high); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1231; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyNumber_Subtract(__pyx_t_6, __pyx_v_f_high); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1227; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-      __pyx_t_6 = PyInt_FromLong(__pyx_v_min_fx_size); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1231; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = PyInt_FromLong(__pyx_v_min_fx_size); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1227; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_6);
-      __pyx_t_7 = PyObject_RichCompare(__pyx_t_2, __pyx_t_6, Py_LT); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1231; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_7 = PyObject_RichCompare(__pyx_t_2, __pyx_t_6, Py_LT); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1227; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_7);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-      __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_7); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1231; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_7); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1227; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
       if (__pyx_t_4) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1232
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1228
  *                         new_high_x = 1
  *                 if f_back_high[0] - f_high < min_fx_size:
  *                     f_back_high[0] = f_high + min_fx_size             # <<<<<<<<<<<<<<
  *                     if f_back_high[0] - f_back_low[0] > max_f_len:
  *                         # FAIL: extension required on high side violates max initial length
  */
-        __pyx_t_7 = PyInt_FromLong(__pyx_v_min_fx_size); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1232; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_7 = PyInt_FromLong(__pyx_v_min_fx_size); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1228; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_7);
-        __pyx_t_6 = PyNumber_Add(__pyx_v_f_high, __pyx_t_7); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1232; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_6 = PyNumber_Add(__pyx_v_f_high, __pyx_t_7); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1228; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_6);
         __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-        __pyx_t_1 = __Pyx_PyInt_AsInt(__pyx_t_6); if (unlikely((__pyx_t_1 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1232; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_1 = __Pyx_PyInt_AsInt(__pyx_t_6); if (unlikely((__pyx_t_1 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1228; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
         (__pyx_v_f_back_high[0]) = __pyx_t_1;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1233
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1229
  *                 if f_back_high[0] - f_high < min_fx_size:
  *                     f_back_high[0] = f_high + min_fx_size
  *                     if f_back_high[0] - f_back_low[0] > max_f_len:             # <<<<<<<<<<<<<<
@@ -48410,7 +50150,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
         __pyx_t_4 = (((__pyx_v_f_back_high[0]) - (__pyx_v_f_back_low[0])) > __pyx_v_max_f_len);
         if (__pyx_t_4) {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1235
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1231
  *                     if f_back_high[0] - f_back_low[0] > max_f_len:
  *                         # FAIL: extension required on high side violates max initial length
  *                         return 0             # <<<<<<<<<<<<<<
@@ -48423,7 +50163,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
         }
         __pyx_L28:;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1236
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1232
  *                         # FAIL: extension required on high side violates max initial length
  *                         return 0
  *                     if f_back_high[0] > f_sent_len:             # <<<<<<<<<<<<<<
@@ -48433,7 +50173,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
         __pyx_t_4 = ((__pyx_v_f_back_high[0]) > __pyx_v_f_sent_len);
         if (__pyx_t_4) {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1238
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1234
  *                     if f_back_high[0] > f_sent_len:
  *                         # FAIL: extension required on high side violates sentence boundary
  *                         return 0             # <<<<<<<<<<<<<<
@@ -48452,7 +50192,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
     }
     __pyx_L24:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1240
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1236
  *                         return 0
  * 
  *             e_low_prev = e_low[0]             # <<<<<<<<<<<<<<
@@ -48461,7 +50201,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
  */
     __pyx_v_e_low_prev = (__pyx_v_e_low[0]);
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1241
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1237
  * 
  *             e_low_prev = e_low[0]
  *             e_high_prev = e_high[0]             # <<<<<<<<<<<<<<
@@ -48470,29 +50210,29 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
  */
     __pyx_v_e_high_prev = (__pyx_v_e_high[0]);
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1243
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1239
  *             e_high_prev = e_high[0]
  * 
  *             self.find_projection(f_back_low[0], f_low_prev, f_links_low, f_links_high, e_low, e_high)             # <<<<<<<<<<<<<<
  *             self.find_projection(f_high_prev, f_back_high[0], f_links_low, f_links_high, e_low, e_high)
  *             if e_low[0] == e_low_prev and e_high[0] == e_high_prev:
  */
-    __pyx_t_6 = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->find_projection(__pyx_v_self, (__pyx_v_f_back_low[0]), __pyx_v_f_low_prev, __pyx_v_f_links_low, __pyx_v_f_links_high, __pyx_v_e_low, __pyx_v_e_high); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1243; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->find_projection(__pyx_v_self, (__pyx_v_f_back_low[0]), __pyx_v_f_low_prev, __pyx_v_f_links_low, __pyx_v_f_links_high, __pyx_v_e_low, __pyx_v_e_high); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1239; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1244
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1240
  * 
  *             self.find_projection(f_back_low[0], f_low_prev, f_links_low, f_links_high, e_low, e_high)
  *             self.find_projection(f_high_prev, f_back_high[0], f_links_low, f_links_high, e_low, e_high)             # <<<<<<<<<<<<<<
  *             if e_low[0] == e_low_prev and e_high[0] == e_high_prev:
  *                 return 1
  */
-    __pyx_t_6 = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->find_projection(__pyx_v_self, __pyx_v_f_high_prev, (__pyx_v_f_back_high[0]), __pyx_v_f_links_low, __pyx_v_f_links_high, __pyx_v_e_low, __pyx_v_e_high); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1244; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->find_projection(__pyx_v_self, __pyx_v_f_high_prev, (__pyx_v_f_back_high[0]), __pyx_v_f_links_low, __pyx_v_f_links_high, __pyx_v_e_low, __pyx_v_e_high); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1240; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1245
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1241
  *             self.find_projection(f_back_low[0], f_low_prev, f_links_low, f_links_high, e_low, e_high)
  *             self.find_projection(f_high_prev, f_back_high[0], f_links_low, f_links_high, e_low, e_high)
  *             if e_low[0] == e_low_prev and e_high[0] == e_high_prev:             # <<<<<<<<<<<<<<
@@ -48508,7 +50248,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
     }
     if (__pyx_t_3) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1246
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1242
  *             self.find_projection(f_high_prev, f_back_high[0], f_links_low, f_links_high, e_low, e_high)
  *             if e_low[0] == e_low_prev and e_high[0] == e_high_prev:
  *                 return 1             # <<<<<<<<<<<<<<
@@ -48521,7 +50261,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
     }
     __pyx_L30:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1247
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1243
  *             if e_low[0] == e_low_prev and e_high[0] == e_high_prev:
  *                 return 1
  *             if allow_arbitrary_x == 0:             # <<<<<<<<<<<<<<
@@ -48531,7 +50271,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
     __pyx_t_3 = (__pyx_v_allow_arbitrary_x == 0);
     if (__pyx_t_3) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1249
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1245
  *             if allow_arbitrary_x == 0:
  *                 # FAIL: arbitrary expansion not permitted
  *                 return 0             # <<<<<<<<<<<<<<
@@ -48544,7 +50284,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
     }
     __pyx_L31:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1250
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1246
  *                 # FAIL: arbitrary expansion not permitted
  *                 return 0
  *             if e_high[0] - e_low[0] > max_e_len:             # <<<<<<<<<<<<<<
@@ -48554,7 +50294,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
     __pyx_t_3 = (((__pyx_v_e_high[0]) - (__pyx_v_e_low[0])) > __pyx_v_max_e_len);
     if (__pyx_t_3) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1252
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1248
  *             if e_high[0] - e_low[0] > max_e_len:
  *                 # FAIL: re-projection violates sentence max phrase length
  *                 return 0             # <<<<<<<<<<<<<<
@@ -48567,7 +50307,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
     }
     __pyx_L32:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1253
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1249
  *                 # FAIL: re-projection violates sentence max phrase length
  *                 return 0
  *             f_low_prev = f_back_low[0]             # <<<<<<<<<<<<<<
@@ -48576,7 +50316,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
  */
     __pyx_v_f_low_prev = (__pyx_v_f_back_low[0]);
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1254
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1250
  *                 return 0
  *             f_low_prev = f_back_low[0]
  *             f_high_prev = f_back_high[0]             # <<<<<<<<<<<<<<
@@ -48599,7 +50339,7 @@ static int __pyx_f_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct __pyx_obj
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1257
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1253
  * 
  * 
  *     cdef find_projection(self, int in_low, int in_high, int* in_links_low, int* in_links_high,             # <<<<<<<<<<<<<<
@@ -48617,7 +50357,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_find_projection(CYTHON_U
   int __pyx_t_4;
   __Pyx_RefNannySetupContext("find_projection", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1260
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1256
  *                         int* out_low, int* out_high):
  *         cdef int i
  *         for i from in_low <= i < in_high:             # <<<<<<<<<<<<<<
@@ -48627,7 +50367,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_find_projection(CYTHON_U
   __pyx_t_1 = __pyx_v_in_high;
   for (__pyx_v_i = __pyx_v_in_low; __pyx_v_i < __pyx_t_1; __pyx_v_i++) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1261
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1257
  *         cdef int i
  *         for i from in_low <= i < in_high:
  *             if in_links_low[i] != -1:             # <<<<<<<<<<<<<<
@@ -48637,7 +50377,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_find_projection(CYTHON_U
     __pyx_t_2 = ((__pyx_v_in_links_low[__pyx_v_i]) != -1);
     if (__pyx_t_2) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1262
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1258
  *         for i from in_low <= i < in_high:
  *             if in_links_low[i] != -1:
  *                 if out_low[0] == -1 or in_links_low[i] < out_low[0]:             # <<<<<<<<<<<<<<
@@ -48653,7 +50393,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_find_projection(CYTHON_U
       }
       if (__pyx_t_4) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1263
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1259
  *             if in_links_low[i] != -1:
  *                 if out_low[0] == -1 or in_links_low[i] < out_low[0]:
  *                     out_low[0] = in_links_low[i]             # <<<<<<<<<<<<<<
@@ -48665,7 +50405,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_find_projection(CYTHON_U
       }
       __pyx_L6:;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1264
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1260
  *                 if out_low[0] == -1 or in_links_low[i] < out_low[0]:
  *                     out_low[0] = in_links_low[i]
  *                 if out_high[0] == -1 or in_links_high[i] > out_high[0]:             # <<<<<<<<<<<<<<
@@ -48681,7 +50421,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_find_projection(CYTHON_U
       }
       if (__pyx_t_3) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1265
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1261
  *                     out_low[0] = in_links_low[i]
  *                 if out_high[0] == -1 or in_links_high[i] > out_high[0]:
  *                     out_high[0] = in_links_high[i]             # <<<<<<<<<<<<<<
@@ -48703,7 +50443,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_find_projection(CYTHON_U
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1268
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1264
  * 
  * 
  *     cdef int* int_arr_extend(self, int* arr, int* arr_len, int* data, int data_len):             # <<<<<<<<<<<<<<
@@ -48717,7 +50457,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_int_arr_extend(CYTHON_UNUSED
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("int_arr_extend", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1270
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1266
  *     cdef int* int_arr_extend(self, int* arr, int* arr_len, int* data, int data_len):
  *         cdef int new_len
  *         new_len = arr_len[0] + data_len             # <<<<<<<<<<<<<<
@@ -48726,7 +50466,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_int_arr_extend(CYTHON_UNUSED
  */
   __pyx_v_new_len = ((__pyx_v_arr_len[0]) + __pyx_v_data_len);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1271
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1267
  *         cdef int new_len
  *         new_len = arr_len[0] + data_len
  *         arr = <int*> realloc(arr, new_len*sizeof(int))             # <<<<<<<<<<<<<<
@@ -48735,7 +50475,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_int_arr_extend(CYTHON_UNUSED
  */
   __pyx_v_arr = ((int *)realloc(__pyx_v_arr, (__pyx_v_new_len * (sizeof(int)))));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1272
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1268
  *         new_len = arr_len[0] + data_len
  *         arr = <int*> realloc(arr, new_len*sizeof(int))
  *         memcpy(arr+arr_len[0], data, data_len*sizeof(int))             # <<<<<<<<<<<<<<
@@ -48744,7 +50484,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_int_arr_extend(CYTHON_UNUSED
  */
   memcpy((__pyx_v_arr + (__pyx_v_arr_len[0])), __pyx_v_data, (__pyx_v_data_len * (sizeof(int))));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1273
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1269
  *         arr = <int*> realloc(arr, new_len*sizeof(int))
  *         memcpy(arr+arr_len[0], data, data_len*sizeof(int))
  *         arr_len[0] = new_len             # <<<<<<<<<<<<<<
@@ -48753,7 +50493,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_int_arr_extend(CYTHON_UNUSED
  */
   (__pyx_v_arr_len[0]) = __pyx_v_new_len;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1274
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1270
  *         memcpy(arr+arr_len[0], data, data_len*sizeof(int))
  *         arr_len[0] = new_len
  *         return arr             # <<<<<<<<<<<<<<
@@ -48769,7 +50509,7 @@ static int *__pyx_f_3_sa_23HieroCachingRuleFactory_int_arr_extend(CYTHON_UNUSED
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1277
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1273
  * 
  * 
  *     cdef extract_phrases(self, int e_low, int e_high, int* e_gap_low, int* e_gap_high, int* e_links_low, int num_gaps,             # <<<<<<<<<<<<<<
@@ -48815,19 +50555,19 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("extract_phrases", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1285
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1281
  *         cdef result
  * 
  *         result = []             # <<<<<<<<<<<<<<
  *         len1 = 0
  *         e_gaps1 = <int*> malloc(0)
  */
-  __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1285; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1281; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_v_result = ((PyObject *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1286
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1282
  * 
  *         result = []
  *         len1 = 0             # <<<<<<<<<<<<<<
@@ -48836,7 +50576,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
  */
   __pyx_v_len1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1287
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1283
  *         result = []
  *         len1 = 0
  *         e_gaps1 = <int*> malloc(0)             # <<<<<<<<<<<<<<
@@ -48845,19 +50585,19 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
  */
   __pyx_v_e_gaps1 = ((int *)malloc(0));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1288
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1284
  *         len1 = 0
  *         e_gaps1 = <int*> malloc(0)
  *         ephr_arr = IntList()             # <<<<<<<<<<<<<<
  * 
  *         e_gap_order = <int*> malloc(num_gaps*sizeof(int))
  */
-  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1288; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1284; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_v_ephr_arr = ((struct __pyx_obj_3_sa_IntList *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1290
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1286
  *         ephr_arr = IntList()
  * 
  *         e_gap_order = <int*> malloc(num_gaps*sizeof(int))             # <<<<<<<<<<<<<<
@@ -48866,7 +50606,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
  */
   __pyx_v_e_gap_order = ((int *)malloc((__pyx_v_num_gaps * (sizeof(int)))));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1291
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1287
  * 
  *         e_gap_order = <int*> malloc(num_gaps*sizeof(int))
  *         if num_gaps > 0:             # <<<<<<<<<<<<<<
@@ -48876,7 +50616,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
   __pyx_t_2 = (__pyx_v_num_gaps > 0);
   if (__pyx_t_2) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1292
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1288
  *         e_gap_order = <int*> malloc(num_gaps*sizeof(int))
  *         if num_gaps > 0:
  *             e_gap_order[0] = 0             # <<<<<<<<<<<<<<
@@ -48885,7 +50625,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
  */
     (__pyx_v_e_gap_order[0]) = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1293
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1289
  *         if num_gaps > 0:
  *             e_gap_order[0] = 0
  *             for i from 1 <= i < num_gaps:             # <<<<<<<<<<<<<<
@@ -48895,7 +50635,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
     __pyx_t_3 = __pyx_v_num_gaps;
     for (__pyx_v_i = 1; __pyx_v_i < __pyx_t_3; __pyx_v_i++) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1294
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1290
  *             e_gap_order[0] = 0
  *             for i from 1 <= i < num_gaps:
  *                 for j from 0 <= j < i:             # <<<<<<<<<<<<<<
@@ -48905,7 +50645,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
       __pyx_t_4 = __pyx_v_i;
       for (__pyx_v_j = 0; __pyx_v_j < __pyx_t_4; __pyx_v_j++) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1295
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1291
  *             for i from 1 <= i < num_gaps:
  *                 for j from 0 <= j < i:
  *                     if e_gap_low[i] < e_gap_low[j]:             # <<<<<<<<<<<<<<
@@ -48915,7 +50655,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
         __pyx_t_2 = ((__pyx_v_e_gap_low[__pyx_v_i]) < (__pyx_v_e_gap_low[__pyx_v_j]));
         if (__pyx_t_2) {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1296
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1292
  *                 for j from 0 <= j < i:
  *                     if e_gap_low[i] < e_gap_low[j]:
  *                         for k from j <= k < i:             # <<<<<<<<<<<<<<
@@ -48925,7 +50665,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
           __pyx_t_5 = __pyx_v_i;
           for (__pyx_v_k = __pyx_v_j; __pyx_v_k < __pyx_t_5; __pyx_v_k++) {
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1297
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1293
  *                     if e_gap_low[i] < e_gap_low[j]:
  *                         for k from j <= k < i:
  *                             e_gap_order[k+1] = e_gap_order[k]             # <<<<<<<<<<<<<<
@@ -48935,7 +50675,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
             (__pyx_v_e_gap_order[(__pyx_v_k + 1)]) = (__pyx_v_e_gap_order[__pyx_v_k]);
           }
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1298
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1294
  *                         for k from j <= k < i:
  *                             e_gap_order[k+1] = e_gap_order[k]
  *                         e_gap_order[j] = i             # <<<<<<<<<<<<<<
@@ -48944,7 +50684,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
  */
           (__pyx_v_e_gap_order[__pyx_v_j]) = __pyx_v_i;
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1299
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1295
  *                             e_gap_order[k+1] = e_gap_order[k]
  *                         e_gap_order[j] = i
  *                         break             # <<<<<<<<<<<<<<
@@ -48958,7 +50698,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
       }
       /*else*/ {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1301
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1297
  *                         break
  *                 else:
  *                     e_gap_order[i] = i             # <<<<<<<<<<<<<<
@@ -48973,7 +50713,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
   }
   __pyx_L3:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1303
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1299
  *                     e_gap_order[i] = i
  * 
  *         e_x_low = e_low             # <<<<<<<<<<<<<<
@@ -48982,7 +50722,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
  */
   __pyx_v_e_x_low = __pyx_v_e_low;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1304
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1300
  * 
  *         e_x_low = e_low
  *         e_x_high = e_high             # <<<<<<<<<<<<<<
@@ -48991,7 +50731,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
  */
   __pyx_v_e_x_high = __pyx_v_e_high;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1305
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1301
  *         e_x_low = e_low
  *         e_x_high = e_high
  *         if self.tight_phrases == 0:             # <<<<<<<<<<<<<<
@@ -49001,7 +50741,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
   __pyx_t_2 = (__pyx_v_self->tight_phrases == 0);
   if (__pyx_t_2) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1306
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1302
  *         e_x_high = e_high
  *         if self.tight_phrases == 0:
  *             while e_x_low > 0 and e_high - e_x_low < self.train_max_initial_size and e_links_low[e_x_low-1] == -1:             # <<<<<<<<<<<<<<
@@ -49024,7 +50764,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
       }
       if (!__pyx_t_6) break;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1307
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1303
  *         if self.tight_phrases == 0:
  *             while e_x_low > 0 and e_high - e_x_low < self.train_max_initial_size and e_links_low[e_x_low-1] == -1:
  *                 e_x_low = e_x_low - 1             # <<<<<<<<<<<<<<
@@ -49034,7 +50774,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
       __pyx_v_e_x_low = (__pyx_v_e_x_low - 1);
     }
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1308
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1304
  *             while e_x_low > 0 and e_high - e_x_low < self.train_max_initial_size and e_links_low[e_x_low-1] == -1:
  *                 e_x_low = e_x_low - 1
  *             while e_x_high < e_sent_len and e_x_high - e_low < self.train_max_initial_size and e_links_low[e_x_high] == -1:             # <<<<<<<<<<<<<<
@@ -49057,7 +50797,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
       }
       if (!__pyx_t_2) break;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1309
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1305
  *                 e_x_low = e_x_low - 1
  *             while e_x_high < e_sent_len and e_x_high - e_low < self.train_max_initial_size and e_links_low[e_x_high] == -1:
  *                 e_x_high = e_x_high + 1             # <<<<<<<<<<<<<<
@@ -49070,7 +50810,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
   }
   __pyx_L11:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1311
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1307
  *                 e_x_high = e_x_high + 1
  * 
  *         for i from e_x_low <= i <= e_low:             # <<<<<<<<<<<<<<
@@ -49080,7 +50820,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
   __pyx_t_3 = __pyx_v_e_low;
   for (__pyx_v_i = __pyx_v_e_x_low; __pyx_v_i <= __pyx_t_3; __pyx_v_i++) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1312
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1308
  * 
  *         for i from e_x_low <= i <= e_low:
  *             e_gaps1 = self.int_arr_extend(e_gaps1, &len1, &i, 1)             # <<<<<<<<<<<<<<
@@ -49090,7 +50830,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
     __pyx_v_e_gaps1 = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->int_arr_extend(__pyx_v_self, __pyx_v_e_gaps1, (&__pyx_v_len1), (&__pyx_v_i), 1);
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1314
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1310
  *             e_gaps1 = self.int_arr_extend(e_gaps1, &len1, &i, 1)
  * 
  *         for i from 0 <= i < num_gaps:             # <<<<<<<<<<<<<<
@@ -49100,7 +50840,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
   __pyx_t_3 = __pyx_v_num_gaps;
   for (__pyx_v_i = 0; __pyx_v_i < __pyx_t_3; __pyx_v_i++) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1315
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1311
  * 
  *         for i from 0 <= i < num_gaps:
  *             e_gaps2 = <int*> malloc(0)             # <<<<<<<<<<<<<<
@@ -49109,7 +50849,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
  */
     __pyx_v_e_gaps2 = ((int *)malloc(0));
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1316
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1312
  *         for i from 0 <= i < num_gaps:
  *             e_gaps2 = <int*> malloc(0)
  *             len2 = 0             # <<<<<<<<<<<<<<
@@ -49118,7 +50858,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
  */
     __pyx_v_len2 = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1318
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1314
  *             len2 = 0
  * 
  *             j = e_gap_order[i]             # <<<<<<<<<<<<<<
@@ -49127,7 +50867,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
  */
     __pyx_v_j = (__pyx_v_e_gap_order[__pyx_v_i]);
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1319
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1315
  * 
  *             j = e_gap_order[i]
  *             e_x_gap_low = e_gap_low[j]             # <<<<<<<<<<<<<<
@@ -49136,7 +50876,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
  */
     __pyx_v_e_x_gap_low = (__pyx_v_e_gap_low[__pyx_v_j]);
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1320
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1316
  *             j = e_gap_order[i]
  *             e_x_gap_low = e_gap_low[j]
  *             e_x_gap_high = e_gap_high[j]             # <<<<<<<<<<<<<<
@@ -49145,7 +50885,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
  */
     __pyx_v_e_x_gap_high = (__pyx_v_e_gap_high[__pyx_v_j]);
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1321
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1317
  *             e_x_gap_low = e_gap_low[j]
  *             e_x_gap_high = e_gap_high[j]
  *             if self.tight_phrases == 0:             # <<<<<<<<<<<<<<
@@ -49155,7 +50895,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
     __pyx_t_2 = (__pyx_v_self->tight_phrases == 0);
     if (__pyx_t_2) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1322
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1318
  *             e_x_gap_high = e_gap_high[j]
  *             if self.tight_phrases == 0:
  *                 while e_x_gap_low > e_x_low and e_links_low[e_x_gap_low-1] == -1:             # <<<<<<<<<<<<<<
@@ -49172,7 +50912,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
         }
         if (!__pyx_t_7) break;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1323
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1319
  *             if self.tight_phrases == 0:
  *                 while e_x_gap_low > e_x_low and e_links_low[e_x_gap_low-1] == -1:
  *                     e_x_gap_low = e_x_gap_low - 1             # <<<<<<<<<<<<<<
@@ -49182,7 +50922,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
         __pyx_v_e_x_gap_low = (__pyx_v_e_x_gap_low - 1);
       }
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1324
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1320
  *                 while e_x_gap_low > e_x_low and e_links_low[e_x_gap_low-1] == -1:
  *                     e_x_gap_low = e_x_gap_low - 1
  *                 while e_x_gap_high < e_x_high and e_links_low[e_x_gap_high] == -1:             # <<<<<<<<<<<<<<
@@ -49199,7 +50939,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
         }
         if (!__pyx_t_6) break;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1325
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1321
  *                     e_x_gap_low = e_x_gap_low - 1
  *                 while e_x_gap_high < e_x_high and e_links_low[e_x_gap_high] == -1:
  *                     e_x_gap_high = e_x_gap_high + 1             # <<<<<<<<<<<<<<
@@ -49212,7 +50952,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
     }
     __pyx_L20:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1327
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1323
  *                     e_x_gap_high = e_x_gap_high + 1
  * 
  *             k = 0             # <<<<<<<<<<<<<<
@@ -49221,7 +50961,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
  */
     __pyx_v_k = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1328
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1324
  * 
  *             k = 0
  *             step = 1+(i*2)             # <<<<<<<<<<<<<<
@@ -49230,7 +50970,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
  */
     __pyx_v_step = (1 + (__pyx_v_i * 2));
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1329
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1325
  *             k = 0
  *             step = 1+(i*2)
  *             while k < len1:             # <<<<<<<<<<<<<<
@@ -49241,7 +50981,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
       __pyx_t_6 = (__pyx_v_k < __pyx_v_len1);
       if (!__pyx_t_6) break;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1330
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1326
  *             step = 1+(i*2)
  *             while k < len1:
  *                 for m from e_x_gap_low <= m <= e_gap_low[j]:             # <<<<<<<<<<<<<<
@@ -49251,7 +50991,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
       __pyx_t_4 = (__pyx_v_e_gap_low[__pyx_v_j]);
       for (__pyx_v_m = __pyx_v_e_x_gap_low; __pyx_v_m <= __pyx_t_4; __pyx_v_m++) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1331
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1327
  *             while k < len1:
  *                 for m from e_x_gap_low <= m <= e_gap_low[j]:
  *                     if m >= e_gaps1[k+step-1]:             # <<<<<<<<<<<<<<
@@ -49261,7 +51001,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
         __pyx_t_6 = (__pyx_v_m >= (__pyx_v_e_gaps1[((__pyx_v_k + __pyx_v_step) - 1)]));
         if (__pyx_t_6) {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1332
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1328
  *                 for m from e_x_gap_low <= m <= e_gap_low[j]:
  *                     if m >= e_gaps1[k+step-1]:
  *                         for n from e_gap_high[j] <= n <= e_x_gap_high:             # <<<<<<<<<<<<<<
@@ -49271,7 +51011,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
           __pyx_t_5 = __pyx_v_e_x_gap_high;
           for (__pyx_v_n = (__pyx_v_e_gap_high[__pyx_v_j]); __pyx_v_n <= __pyx_t_5; __pyx_v_n++) {
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1333
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1329
  *                     if m >= e_gaps1[k+step-1]:
  *                         for n from e_gap_high[j] <= n <= e_x_gap_high:
  *                             if n-m >= 1:    # extractor.py doesn't restrict target-side gap length             # <<<<<<<<<<<<<<
@@ -49281,7 +51021,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
             __pyx_t_6 = ((__pyx_v_n - __pyx_v_m) >= 1);
             if (__pyx_t_6) {
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1334
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1330
  *                         for n from e_gap_high[j] <= n <= e_x_gap_high:
  *                             if n-m >= 1:    # extractor.py doesn't restrict target-side gap length
  *                                 e_gaps2 = self.int_arr_extend(e_gaps2, &len2, e_gaps1+k, step)             # <<<<<<<<<<<<<<
@@ -49290,7 +51030,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
  */
               __pyx_v_e_gaps2 = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->int_arr_extend(__pyx_v_self, __pyx_v_e_gaps2, (&__pyx_v_len2), (__pyx_v_e_gaps1 + __pyx_v_k), __pyx_v_step);
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1335
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1331
  *                             if n-m >= 1:    # extractor.py doesn't restrict target-side gap length
  *                                 e_gaps2 = self.int_arr_extend(e_gaps2, &len2, e_gaps1+k, step)
  *                                 e_gaps2 = self.int_arr_extend(e_gaps2, &len2, &m, 1)             # <<<<<<<<<<<<<<
@@ -49299,7 +51039,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
  */
               __pyx_v_e_gaps2 = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->int_arr_extend(__pyx_v_self, __pyx_v_e_gaps2, (&__pyx_v_len2), (&__pyx_v_m), 1);
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1336
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1332
  *                                 e_gaps2 = self.int_arr_extend(e_gaps2, &len2, e_gaps1+k, step)
  *                                 e_gaps2 = self.int_arr_extend(e_gaps2, &len2, &m, 1)
  *                                 e_gaps2 = self.int_arr_extend(e_gaps2, &len2, &n, 1)             # <<<<<<<<<<<<<<
@@ -49316,7 +51056,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
         __pyx_L29:;
       }
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1337
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1333
  *                                 e_gaps2 = self.int_arr_extend(e_gaps2, &len2, &m, 1)
  *                                 e_gaps2 = self.int_arr_extend(e_gaps2, &len2, &n, 1)
  *                 k = k + step             # <<<<<<<<<<<<<<
@@ -49326,7 +51066,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
       __pyx_v_k = (__pyx_v_k + __pyx_v_step);
     }
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1338
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1334
  *                                 e_gaps2 = self.int_arr_extend(e_gaps2, &len2, &n, 1)
  *                 k = k + step
  *             free(e_gaps1)             # <<<<<<<<<<<<<<
@@ -49335,7 +51075,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
  */
     free(__pyx_v_e_gaps1);
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1339
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1335
  *                 k = k + step
  *             free(e_gaps1)
  *             e_gaps1 = e_gaps2             # <<<<<<<<<<<<<<
@@ -49344,7 +51084,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
  */
     __pyx_v_e_gaps1 = __pyx_v_e_gaps2;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1340
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1336
  *             free(e_gaps1)
  *             e_gaps1 = e_gaps2
  *             len1 = len2             # <<<<<<<<<<<<<<
@@ -49354,7 +51094,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
     __pyx_v_len1 = __pyx_v_len2;
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1342
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1338
  *             len1 = len2
  * 
  *         step = 1+(num_gaps*2)             # <<<<<<<<<<<<<<
@@ -49363,7 +51103,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
  */
   __pyx_v_step = (1 + (__pyx_v_num_gaps * 2));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1343
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1339
  * 
  *         step = 1+(num_gaps*2)
  *         e_gaps2 = <int*> malloc(0)             # <<<<<<<<<<<<<<
@@ -49372,7 +51112,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
  */
   __pyx_v_e_gaps2 = ((int *)malloc(0));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1344
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1340
  *         step = 1+(num_gaps*2)
  *         e_gaps2 = <int*> malloc(0)
  *         len2 = 0             # <<<<<<<<<<<<<<
@@ -49381,7 +51121,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
  */
   __pyx_v_len2 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1345
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1341
  *         e_gaps2 = <int*> malloc(0)
  *         len2 = 0
  *         for i from e_high <= i <= e_x_high:             # <<<<<<<<<<<<<<
@@ -49391,7 +51131,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
   __pyx_t_3 = __pyx_v_e_x_high;
   for (__pyx_v_i = __pyx_v_e_high; __pyx_v_i <= __pyx_t_3; __pyx_v_i++) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1346
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1342
  *         len2 = 0
  *         for i from e_high <= i <= e_x_high:
  *             j = 0             # <<<<<<<<<<<<<<
@@ -49400,7 +51140,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
  */
     __pyx_v_j = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1347
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1343
  *         for i from e_high <= i <= e_x_high:
  *             j = 0
  *             while j < len1:             # <<<<<<<<<<<<<<
@@ -49411,7 +51151,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
       __pyx_t_6 = (__pyx_v_j < __pyx_v_len1);
       if (!__pyx_t_6) break;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1348
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1344
  *             j = 0
  *             while j < len1:
  *                 if i - e_gaps1[j] <= self.train_max_initial_size and i >= e_gaps1[j+step-1]:             # <<<<<<<<<<<<<<
@@ -49427,7 +51167,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
       }
       if (__pyx_t_2) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1349
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1345
  *             while j < len1:
  *                 if i - e_gaps1[j] <= self.train_max_initial_size and i >= e_gaps1[j+step-1]:
  *                     e_gaps2 = self.int_arr_extend(e_gaps2, &len2, e_gaps1+j, step)             # <<<<<<<<<<<<<<
@@ -49436,7 +51176,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
  */
         __pyx_v_e_gaps2 = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->int_arr_extend(__pyx_v_self, __pyx_v_e_gaps2, (&__pyx_v_len2), (__pyx_v_e_gaps1 + __pyx_v_j), __pyx_v_step);
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1350
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1346
  *                 if i - e_gaps1[j] <= self.train_max_initial_size and i >= e_gaps1[j+step-1]:
  *                     e_gaps2 = self.int_arr_extend(e_gaps2, &len2, e_gaps1+j, step)
  *                     e_gaps2 = self.int_arr_extend(e_gaps2, &len2, &i, 1)             # <<<<<<<<<<<<<<
@@ -49448,7 +51188,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
       }
       __pyx_L37:;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1351
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1347
  *                     e_gaps2 = self.int_arr_extend(e_gaps2, &len2, e_gaps1+j, step)
  *                     e_gaps2 = self.int_arr_extend(e_gaps2, &len2, &i, 1)
  *                 j = j + step             # <<<<<<<<<<<<<<
@@ -49459,7 +51199,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
     }
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1352
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1348
  *                     e_gaps2 = self.int_arr_extend(e_gaps2, &len2, &i, 1)
  *                 j = j + step
  *         free(e_gaps1)             # <<<<<<<<<<<<<<
@@ -49468,7 +51208,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
  */
   free(__pyx_v_e_gaps1);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1353
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1349
  *                 j = j + step
  *         free(e_gaps1)
  *         e_gaps1 = e_gaps2             # <<<<<<<<<<<<<<
@@ -49477,7 +51217,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
  */
   __pyx_v_e_gaps1 = __pyx_v_e_gaps2;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1354
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1350
  *         free(e_gaps1)
  *         e_gaps1 = e_gaps2
  *         len1 = len2             # <<<<<<<<<<<<<<
@@ -49486,7 +51226,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
  */
   __pyx_v_len1 = __pyx_v_len2;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1356
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1352
  *         len1 = len2
  * 
  *         step = (num_gaps+1)*2             # <<<<<<<<<<<<<<
@@ -49495,7 +51235,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
  */
   __pyx_v_step = ((__pyx_v_num_gaps + 1) * 2);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1357
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1353
  * 
  *         step = (num_gaps+1)*2
  *         i = 0             # <<<<<<<<<<<<<<
@@ -49504,7 +51244,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
  */
   __pyx_v_i = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1359
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1355
  *         i = 0
  * 
  *         while i < len1:             # <<<<<<<<<<<<<<
@@ -49515,7 +51255,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
     __pyx_t_2 = (__pyx_v_i < __pyx_v_len1);
     if (!__pyx_t_2) break;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1360
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1356
  * 
  *         while i < len1:
  *             ephr_arr._clear()             # <<<<<<<<<<<<<<
@@ -49524,7 +51264,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
  */
     ((struct __pyx_vtabstruct_3_sa_IntList *)__pyx_v_ephr_arr->__pyx_vtab)->_clear(__pyx_v_ephr_arr);
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1361
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1357
  *         while i < len1:
  *             ephr_arr._clear()
  *             num_chunks = 0             # <<<<<<<<<<<<<<
@@ -49533,20 +51273,20 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
  */
     __pyx_v_num_chunks = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1362
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1358
  *             ephr_arr._clear()
  *             num_chunks = 0
  *             indexes = []             # <<<<<<<<<<<<<<
  *             for j from 0 <= j < num_gaps+1:
  *                 if e_gaps1[i+2*j] < e_gaps1[i+(2*j)+1]:
  */
-    __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1362; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1358; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_XDECREF(((PyObject *)__pyx_v_indexes));
     __pyx_v_indexes = __pyx_t_1;
     __pyx_t_1 = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1363
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1359
  *             num_chunks = 0
  *             indexes = []
  *             for j from 0 <= j < num_gaps+1:             # <<<<<<<<<<<<<<
@@ -49556,7 +51296,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
     __pyx_t_9 = (__pyx_v_num_gaps + 1);
     for (__pyx_v_j = 0; __pyx_v_j < __pyx_t_9; __pyx_v_j++) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1364
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1360
  *             indexes = []
  *             for j from 0 <= j < num_gaps+1:
  *                 if e_gaps1[i+2*j] < e_gaps1[i+(2*j)+1]:             # <<<<<<<<<<<<<<
@@ -49566,7 +51306,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
       __pyx_t_2 = ((__pyx_v_e_gaps1[(__pyx_v_i + (2 * __pyx_v_j))]) < (__pyx_v_e_gaps1[((__pyx_v_i + (2 * __pyx_v_j)) + 1)]));
       if (__pyx_t_2) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1365
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1361
  *             for j from 0 <= j < num_gaps+1:
  *                 if e_gaps1[i+2*j] < e_gaps1[i+(2*j)+1]:
  *                     num_chunks = num_chunks + 1             # <<<<<<<<<<<<<<
@@ -49578,7 +51318,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
       }
       __pyx_L42:;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1366
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1362
  *                 if e_gaps1[i+2*j] < e_gaps1[i+(2*j)+1]:
  *                     num_chunks = num_chunks + 1
  *                 for k from e_gaps1[i+2*j] <= k < e_gaps1[i+(2*j)+1]:             # <<<<<<<<<<<<<<
@@ -49588,19 +51328,19 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
       __pyx_t_3 = (__pyx_v_e_gaps1[((__pyx_v_i + (2 * __pyx_v_j)) + 1)]);
       for (__pyx_v_k = (__pyx_v_e_gaps1[(__pyx_v_i + (2 * __pyx_v_j))]); __pyx_v_k < __pyx_t_3; __pyx_v_k++) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1367
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1363
  *                     num_chunks = num_chunks + 1
  *                 for k from e_gaps1[i+2*j] <= k < e_gaps1[i+(2*j)+1]:
  *                     indexes.append(k)             # <<<<<<<<<<<<<<
  *                     ephr_arr._append(self.eid2symid[self.eda.data.arr[e_sent_start+k]])
  *                 if j < num_gaps:
  */
-        __pyx_t_1 = PyInt_FromLong(__pyx_v_k); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1367; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_1 = PyInt_FromLong(__pyx_v_k); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1363; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_1);
-        __pyx_t_10 = PyList_Append(__pyx_v_indexes, __pyx_t_1); if (unlikely(__pyx_t_10 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1367; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_10 = PyList_Append(__pyx_v_indexes, __pyx_t_1); if (unlikely(__pyx_t_10 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1363; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1368
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1364
  *                 for k from e_gaps1[i+2*j] <= k < e_gaps1[i+(2*j)+1]:
  *                     indexes.append(k)
  *                     ephr_arr._append(self.eid2symid[self.eda.data.arr[e_sent_start+k]])             # <<<<<<<<<<<<<<
@@ -49608,14 +51348,14 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
  *                     indexes.append(sym_setindex(self.category, e_gap_order[j]+1))
  */
         __pyx_t_4 = (__pyx_v_self->eda->data->arr[(__pyx_v_e_sent_start + __pyx_v_k)]);
-        __pyx_t_1 = __Pyx_GetItemInt(((PyObject *)__pyx_v_self->eid2symid), __pyx_t_4, sizeof(int), PyInt_FromLong); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1368; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_1 = __Pyx_GetItemInt(((PyObject *)__pyx_v_self->eid2symid), __pyx_t_4, sizeof(int), PyInt_FromLong); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1364; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_1);
-        __pyx_t_4 = __Pyx_PyInt_AsInt(__pyx_t_1); if (unlikely((__pyx_t_4 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1368; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_4 = __Pyx_PyInt_AsInt(__pyx_t_1); if (unlikely((__pyx_t_4 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1364; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
         ((struct __pyx_vtabstruct_3_sa_IntList *)__pyx_v_ephr_arr->__pyx_vtab)->_append(__pyx_v_ephr_arr, __pyx_t_4);
       }
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1369
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1365
  *                     indexes.append(k)
  *                     ephr_arr._append(self.eid2symid[self.eda.data.arr[e_sent_start+k]])
  *                 if j < num_gaps:             # <<<<<<<<<<<<<<
@@ -49625,19 +51365,19 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
       __pyx_t_2 = (__pyx_v_j < __pyx_v_num_gaps);
       if (__pyx_t_2) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1370
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1366
  *                     ephr_arr._append(self.eid2symid[self.eda.data.arr[e_sent_start+k]])
  *                 if j < num_gaps:
  *                     indexes.append(sym_setindex(self.category, e_gap_order[j]+1))             # <<<<<<<<<<<<<<
  *                     ephr_arr._append(sym_setindex(self.category, e_gap_order[j]+1))
  *             i = i + step
  */
-        __pyx_t_1 = PyInt_FromLong(__pyx_f_3_sa_sym_setindex(__pyx_v_self->category, ((__pyx_v_e_gap_order[__pyx_v_j]) + 1))); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1370; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_1 = PyInt_FromLong(__pyx_f_3_sa_sym_setindex(__pyx_v_self->category, ((__pyx_v_e_gap_order[__pyx_v_j]) + 1))); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1366; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_1);
-        __pyx_t_10 = PyList_Append(__pyx_v_indexes, __pyx_t_1); if (unlikely(__pyx_t_10 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1370; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_10 = PyList_Append(__pyx_v_indexes, __pyx_t_1); if (unlikely(__pyx_t_10 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1366; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1371
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1367
  *                 if j < num_gaps:
  *                     indexes.append(sym_setindex(self.category, e_gap_order[j]+1))
  *                     ephr_arr._append(sym_setindex(self.category, e_gap_order[j]+1))             # <<<<<<<<<<<<<<
@@ -49650,7 +51390,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
       __pyx_L45:;
     }
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1372
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1368
  *                     indexes.append(sym_setindex(self.category, e_gap_order[j]+1))
  *                     ephr_arr._append(sym_setindex(self.category, e_gap_order[j]+1))
  *             i = i + step             # <<<<<<<<<<<<<<
@@ -49659,7 +51399,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
  */
     __pyx_v_i = (__pyx_v_i + __pyx_v_step);
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1373
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1369
  *                     ephr_arr._append(sym_setindex(self.category, e_gap_order[j]+1))
  *             i = i + step
  *             if ephr_arr.len <= self.max_target_length and num_chunks <= self.max_target_chunks:             # <<<<<<<<<<<<<<
@@ -49675,22 +51415,22 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
     }
     if (__pyx_t_7) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1374
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1370
  *             i = i + step
  *             if ephr_arr.len <= self.max_target_length and num_chunks <= self.max_target_chunks:
  *                 result.append((Phrase(ephr_arr),indexes))             # <<<<<<<<<<<<<<
  * 
  *         free(e_gaps1)
  */
-      __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1374; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1370; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
       __Pyx_INCREF(((PyObject *)__pyx_v_ephr_arr));
       PyTuple_SET_ITEM(__pyx_t_1, 0, ((PyObject *)__pyx_v_ephr_arr));
       __Pyx_GIVEREF(((PyObject *)__pyx_v_ephr_arr));
-      __pyx_t_11 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_Phrase)), ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1374; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_11 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_Phrase)), ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1370; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_11);
       __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
-      __pyx_t_1 = PyTuple_New(2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1374; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyTuple_New(2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1370; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
       PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_t_11);
       __Pyx_GIVEREF(__pyx_t_11);
@@ -49698,7 +51438,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
       PyTuple_SET_ITEM(__pyx_t_1, 1, ((PyObject *)__pyx_v_indexes));
       __Pyx_GIVEREF(((PyObject *)__pyx_v_indexes));
       __pyx_t_11 = 0;
-      __pyx_t_11 = __Pyx_PyObject_Append(__pyx_v_result, ((PyObject *)__pyx_t_1)); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1374; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_11 = __Pyx_PyObject_Append(__pyx_v_result, ((PyObject *)__pyx_t_1)); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1370; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_11);
       __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
       __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
@@ -49707,7 +51447,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
     __pyx_L46:;
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1376
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1372
  *                 result.append((Phrase(ephr_arr),indexes))
  * 
  *         free(e_gaps1)             # <<<<<<<<<<<<<<
@@ -49716,7 +51456,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
  */
   free(__pyx_v_e_gaps1);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1377
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1373
  * 
  *         free(e_gaps1)
  *         free(e_gap_order)             # <<<<<<<<<<<<<<
@@ -49725,12 +51465,12 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
  */
   free(__pyx_v_e_gap_order);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1378
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1374
  *         free(e_gaps1)
  *         free(e_gap_order)
  *         return result             # <<<<<<<<<<<<<<
  * 
- *     cdef create_alignments(self, int* sent_links, int num_links, findexes, eindexes):
+ *     cdef IntList create_alignments(self, int* sent_links, int num_links, findexes, eindexes):
  */
   __Pyx_XDECREF(__pyx_r);
   __Pyx_INCREF(__pyx_v_result);
@@ -49753,21 +51493,21 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases(struct _
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1380
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1376
  *         return result
  * 
- *     cdef create_alignments(self, int* sent_links, int num_links, findexes, eindexes):             # <<<<<<<<<<<<<<
+ *     cdef IntList create_alignments(self, int* sent_links, int num_links, findexes, eindexes):             # <<<<<<<<<<<<<<
  *         cdef unsigned i
- *         ret = IntList()
+ *         cdef IntList ret = IntList()
  */
 
-static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_create_alignments(CYTHON_UNUSED struct __pyx_obj_3_sa_HieroCachingRuleFactory *__pyx_v_self, int *__pyx_v_sent_links, int __pyx_v_num_links, PyObject *__pyx_v_findexes, PyObject *__pyx_v_eindexes) {
+static struct __pyx_obj_3_sa_IntList *__pyx_f_3_sa_23HieroCachingRuleFactory_create_alignments(CYTHON_UNUSED struct __pyx_obj_3_sa_HieroCachingRuleFactory *__pyx_v_self, int *__pyx_v_sent_links, int __pyx_v_num_links, PyObject *__pyx_v_findexes, PyObject *__pyx_v_eindexes) {
   unsigned int __pyx_v_i;
-  struct __pyx_obj_3_sa_IntList *__pyx_v_ret = NULL;
+  struct __pyx_obj_3_sa_IntList *__pyx_v_ret = 0;
   PyObject *__pyx_v_s = NULL;
   PyObject *__pyx_v_idx = NULL;
   PyObject *__pyx_v_j = NULL;
-  PyObject *__pyx_r = NULL;
+  struct __pyx_obj_3_sa_IntList *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
   PyObject *__pyx_t_1 = NULL;
   Py_ssize_t __pyx_t_2;
@@ -49781,56 +51521,56 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_create_alignments(CYTHON
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("create_alignments", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1382
- *     cdef create_alignments(self, int* sent_links, int num_links, findexes, eindexes):
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1378
+ *     cdef IntList create_alignments(self, int* sent_links, int num_links, findexes, eindexes):
  *         cdef unsigned i
- *         ret = IntList()             # <<<<<<<<<<<<<<
+ *         cdef IntList ret = IntList()             # <<<<<<<<<<<<<<
  *         for i in range(len(findexes)):
  *             s = findexes[i]
  */
-  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1382; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1378; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_v_ret = ((struct __pyx_obj_3_sa_IntList *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1383
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1379
  *         cdef unsigned i
- *         ret = IntList()
+ *         cdef IntList ret = IntList()
  *         for i in range(len(findexes)):             # <<<<<<<<<<<<<<
  *             s = findexes[i]
  *             if (s<0):
  */
-  __pyx_t_2 = PyObject_Length(__pyx_v_findexes); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1383; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyObject_Length(__pyx_v_findexes); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1379; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   for (__pyx_t_3 = 0; __pyx_t_3 < __pyx_t_2; __pyx_t_3+=1) {
     __pyx_v_i = __pyx_t_3;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1384
- *         ret = IntList()
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1380
+ *         cdef IntList ret = IntList()
  *         for i in range(len(findexes)):
  *             s = findexes[i]             # <<<<<<<<<<<<<<
  *             if (s<0):
  *                 continue
  */
-    __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_findexes, __pyx_v_i, sizeof(unsigned int)+1, PyLong_FromUnsignedLong); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1384; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_findexes, __pyx_v_i, sizeof(unsigned int)+1, PyLong_FromUnsignedLong); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1380; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_XDECREF(__pyx_v_s);
     __pyx_v_s = __pyx_t_1;
     __pyx_t_1 = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1385
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1381
  *         for i in range(len(findexes)):
  *             s = findexes[i]
  *             if (s<0):             # <<<<<<<<<<<<<<
  *                 continue
  *             idx = 0
  */
-    __pyx_t_1 = PyObject_RichCompare(__pyx_v_s, __pyx_int_0, Py_LT); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1385; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyObject_RichCompare(__pyx_v_s, __pyx_int_0, Py_LT); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1381; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1385; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1381; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     if (__pyx_t_4) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1386
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1382
  *             s = findexes[i]
  *             if (s<0):
  *                 continue             # <<<<<<<<<<<<<<
@@ -49842,7 +51582,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_create_alignments(CYTHON
     }
     __pyx_L5:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1387
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1383
  *             if (s<0):
  *                 continue
  *             idx = 0             # <<<<<<<<<<<<<<
@@ -49853,7 +51593,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_create_alignments(CYTHON
     __Pyx_XDECREF(__pyx_v_idx);
     __pyx_v_idx = __pyx_int_0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1388
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1384
  *                 continue
  *             idx = 0
  *             while (idx < num_links*2):             # <<<<<<<<<<<<<<
@@ -49861,53 +51601,53 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_create_alignments(CYTHON
  *                     j = eindexes.index(sent_links[idx+1])
  */
     while (1) {
-      __pyx_t_1 = PyInt_FromLong((__pyx_v_num_links * 2)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1388; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyInt_FromLong((__pyx_v_num_links * 2)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1384; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
-      __pyx_t_5 = PyObject_RichCompare(__pyx_v_idx, __pyx_t_1, Py_LT); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1388; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_5 = PyObject_RichCompare(__pyx_v_idx, __pyx_t_1, Py_LT); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1384; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_5);
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-      __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_5); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1388; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_5); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1384; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
       if (!__pyx_t_4) break;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1389
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1385
  *             idx = 0
  *             while (idx < num_links*2):
  *                 if (sent_links[idx] == s):             # <<<<<<<<<<<<<<
  *                     j = eindexes.index(sent_links[idx+1])
  *                     ret.append(i*65536+j)
  */
-      __pyx_t_6 = __Pyx_PyIndex_AsSsize_t(__pyx_v_idx); if (unlikely((__pyx_t_6 == (Py_ssize_t)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1389; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __pyx_t_5 = PyInt_FromLong((__pyx_v_sent_links[__pyx_t_6])); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1389; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = __Pyx_PyIndex_AsSsize_t(__pyx_v_idx); if (unlikely((__pyx_t_6 == (Py_ssize_t)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1385; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_5 = PyInt_FromLong((__pyx_v_sent_links[__pyx_t_6])); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1385; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_5);
-      __pyx_t_1 = PyObject_RichCompare(__pyx_t_5, __pyx_v_s, Py_EQ); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1389; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyObject_RichCompare(__pyx_t_5, __pyx_v_s, Py_EQ); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1385; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
       __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-      __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1389; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1385; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
       if (__pyx_t_4) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1390
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1386
  *             while (idx < num_links*2):
  *                 if (sent_links[idx] == s):
  *                     j = eindexes.index(sent_links[idx+1])             # <<<<<<<<<<<<<<
  *                     ret.append(i*65536+j)
  *                 idx += 2
  */
-        __pyx_t_1 = PyObject_GetAttr(__pyx_v_eindexes, __pyx_n_s__index); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1390; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_1 = PyObject_GetAttr(__pyx_v_eindexes, __pyx_n_s__index); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1386; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_1);
-        __pyx_t_5 = PyNumber_Add(__pyx_v_idx, __pyx_int_1); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1390; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_5 = PyNumber_Add(__pyx_v_idx, __pyx_int_1); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1386; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_5);
-        __pyx_t_6 = __Pyx_PyIndex_AsSsize_t(__pyx_t_5); if (unlikely((__pyx_t_6 == (Py_ssize_t)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1390; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_6 = __Pyx_PyIndex_AsSsize_t(__pyx_t_5); if (unlikely((__pyx_t_6 == (Py_ssize_t)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1386; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-        __pyx_t_5 = PyInt_FromLong((__pyx_v_sent_links[__pyx_t_6])); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1390; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_5 = PyInt_FromLong((__pyx_v_sent_links[__pyx_t_6])); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1386; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_5);
-        __pyx_t_7 = PyTuple_New(1); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1390; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_7 = PyTuple_New(1); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1386; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_7);
         PyTuple_SET_ITEM(__pyx_t_7, 0, __pyx_t_5);
         __Pyx_GIVEREF(__pyx_t_5);
         __pyx_t_5 = 0;
-        __pyx_t_5 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_7), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1390; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_5 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_7), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1386; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_5);
         __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
         __Pyx_DECREF(((PyObject *)__pyx_t_7)); __pyx_t_7 = 0;
@@ -49915,19 +51655,19 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_create_alignments(CYTHON
         __pyx_v_j = __pyx_t_5;
         __pyx_t_5 = 0;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1391
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1387
  *                 if (sent_links[idx] == s):
  *                     j = eindexes.index(sent_links[idx+1])
  *                     ret.append(i*65536+j)             # <<<<<<<<<<<<<<
  *                 idx += 2
  *         return ret
  */
-        __pyx_t_5 = PyInt_FromLong((__pyx_v_i * 65536)); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1391; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_5 = PyInt_FromLong((__pyx_v_i * 65536)); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1387; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_5);
-        __pyx_t_7 = PyNumber_Add(__pyx_t_5, __pyx_v_j); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1391; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_7 = PyNumber_Add(__pyx_t_5, __pyx_v_j); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1387; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_7);
         __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-        __pyx_t_5 = __Pyx_PyObject_Append(((PyObject *)__pyx_v_ret), __pyx_t_7); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1391; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_5 = __Pyx_PyObject_Append(((PyObject *)__pyx_v_ret), __pyx_t_7); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1387; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_5);
         __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
         __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
@@ -49935,14 +51675,14 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_create_alignments(CYTHON
       }
       __pyx_L8:;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1392
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1388
  *                     j = eindexes.index(sent_links[idx+1])
  *                     ret.append(i*65536+j)
  *                 idx += 2             # <<<<<<<<<<<<<<
  *         return ret
  * 
  */
-      __pyx_t_5 = PyNumber_InPlaceAdd(__pyx_v_idx, __pyx_int_2); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1392; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_5 = PyNumber_InPlaceAdd(__pyx_v_idx, __pyx_int_2); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1388; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_5);
       __Pyx_DECREF(__pyx_v_idx);
       __pyx_v_idx = __pyx_t_5;
@@ -49951,19 +51691,19 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_create_alignments(CYTHON
     __pyx_L3_continue:;
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1393
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1389
  *                     ret.append(i*65536+j)
  *                 idx += 2
  *         return ret             # <<<<<<<<<<<<<<
  * 
  *     cdef extract(self, Phrase phrase, Matching* matching, int* chunklen, int num_chunks):
  */
-  __Pyx_XDECREF(__pyx_r);
+  __Pyx_XDECREF(((PyObject *)__pyx_r));
   __Pyx_INCREF(((PyObject *)__pyx_v_ret));
-  __pyx_r = ((PyObject *)__pyx_v_ret);
+  __pyx_r = __pyx_v_ret;
   goto __pyx_L0;
 
-  __pyx_r = Py_None; __Pyx_INCREF(Py_None);
+  __pyx_r = ((struct __pyx_obj_3_sa_IntList *)Py_None); __Pyx_INCREF(Py_None);
   goto __pyx_L0;
   __pyx_L1_error:;
   __Pyx_XDECREF(__pyx_t_1);
@@ -49976,12 +51716,12 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_create_alignments(CYTHON
   __Pyx_XDECREF(__pyx_v_s);
   __Pyx_XDECREF(__pyx_v_idx);
   __Pyx_XDECREF(__pyx_v_j);
-  __Pyx_XGIVEREF(__pyx_r);
+  __Pyx_XGIVEREF((PyObject *)__pyx_r);
   __Pyx_RefNannyFinishContext();
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1395
+/* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1391
  *         return ret
  * 
  *     cdef extract(self, Phrase phrase, Matching* matching, int* chunklen, int num_chunks):             # <<<<<<<<<<<<<<
@@ -50039,10 +51779,10 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
   long __pyx_v_gap_error;
   PyObject *__pyx_v_phrase2 = NULL;
   PyObject *__pyx_v_eindexes = NULL;
-  PyObject *__pyx_v_als1 = NULL;
-  PyObject *__pyx_v_als2 = NULL;
-  PyObject *__pyx_v_als3 = NULL;
-  PyObject *__pyx_v_als4 = NULL;
+  struct __pyx_obj_3_sa_IntList *__pyx_v_als1 = NULL;
+  struct __pyx_obj_3_sa_IntList *__pyx_v_als2 = NULL;
+  struct __pyx_obj_3_sa_IntList *__pyx_v_als3 = NULL;
+  struct __pyx_obj_3_sa_IntList *__pyx_v_als4 = NULL;
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
   PyObject *__pyx_t_1 = NULL;
@@ -50075,19 +51815,19 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("extract", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1408
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1404
  *         cdef reason_for_failure
  * 
  *         fphr_arr = IntList()             # <<<<<<<<<<<<<<
  *         phrase_len = phrase.n
  *         extracts = []
  */
-  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1408; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1404; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_v_fphr_arr = ((struct __pyx_obj_3_sa_IntList *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1409
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1405
  * 
  *         fphr_arr = IntList()
  *         phrase_len = phrase.n             # <<<<<<<<<<<<<<
@@ -50096,19 +51836,19 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
   __pyx_v_phrase_len = __pyx_v_phrase->n;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1410
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1406
  *         fphr_arr = IntList()
  *         phrase_len = phrase.n
  *         extracts = []             # <<<<<<<<<<<<<<
  *         sent_links = self.alignment._get_sent_links(matching.sent_id, &num_links)
  * 
  */
-  __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1410; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1406; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_v_extracts = ((PyObject *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1411
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1407
  *         phrase_len = phrase.n
  *         extracts = []
  *         sent_links = self.alignment._get_sent_links(matching.sent_id, &num_links)             # <<<<<<<<<<<<<<
@@ -50117,7 +51857,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
   __pyx_v_sent_links = ((struct __pyx_vtabstruct_3_sa_Alignment *)__pyx_v_self->alignment->__pyx_vtab)->_get_sent_links(__pyx_v_self->alignment, __pyx_v_matching->sent_id, (&__pyx_v_num_links));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1413
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1409
  *         sent_links = self.alignment._get_sent_links(matching.sent_id, &num_links)
  * 
  *         e_sent_start = self.eda.sent_index.arr[matching.sent_id]             # <<<<<<<<<<<<<<
@@ -50126,7 +51866,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
   __pyx_v_e_sent_start = (__pyx_v_self->eda->sent_index->arr[__pyx_v_matching->sent_id]);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1414
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1410
  * 
  *         e_sent_start = self.eda.sent_index.arr[matching.sent_id]
  *         e_sent_end = self.eda.sent_index.arr[matching.sent_id+1]             # <<<<<<<<<<<<<<
@@ -50135,7 +51875,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
   __pyx_v_e_sent_end = (__pyx_v_self->eda->sent_index->arr[(__pyx_v_matching->sent_id + 1)]);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1415
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1411
  *         e_sent_start = self.eda.sent_index.arr[matching.sent_id]
  *         e_sent_end = self.eda.sent_index.arr[matching.sent_id+1]
  *         e_sent_len = e_sent_end - e_sent_start - 1             # <<<<<<<<<<<<<<
@@ -50144,7 +51884,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
   __pyx_v_e_sent_len = ((__pyx_v_e_sent_end - __pyx_v_e_sent_start) - 1);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1416
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1412
  *         e_sent_end = self.eda.sent_index.arr[matching.sent_id+1]
  *         e_sent_len = e_sent_end - e_sent_start - 1
  *         f_sent_start = self.fda.sent_index.arr[matching.sent_id]             # <<<<<<<<<<<<<<
@@ -50153,7 +51893,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
   __pyx_v_f_sent_start = (__pyx_v_self->fda->sent_index->arr[__pyx_v_matching->sent_id]);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1417
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1413
  *         e_sent_len = e_sent_end - e_sent_start - 1
  *         f_sent_start = self.fda.sent_index.arr[matching.sent_id]
  *         f_sent_end = self.fda.sent_index.arr[matching.sent_id+1]             # <<<<<<<<<<<<<<
@@ -50162,7 +51902,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
   __pyx_v_f_sent_end = (__pyx_v_self->fda->sent_index->arr[(__pyx_v_matching->sent_id + 1)]);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1418
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1414
  *         f_sent_start = self.fda.sent_index.arr[matching.sent_id]
  *         f_sent_end = self.fda.sent_index.arr[matching.sent_id+1]
  *         f_sent_len = f_sent_end - f_sent_start - 1             # <<<<<<<<<<<<<<
@@ -50171,21 +51911,21 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
   __pyx_v_f_sent_len = ((__pyx_v_f_sent_end - __pyx_v_f_sent_start) - 1);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1420
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1416
  *         f_sent_len = f_sent_end - f_sent_start - 1
  * 
  *         self.findexes1.reset()             # <<<<<<<<<<<<<<
  *         sofar = 0
  *         for i in range(num_chunks):
  */
-  __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_v_self->findexes1), __pyx_n_s__reset); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1420; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_v_self->findexes1), __pyx_n_s__reset); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1416; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1420; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1416; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1421
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1417
  * 
  *         self.findexes1.reset()
  *         sofar = 0             # <<<<<<<<<<<<<<
@@ -50195,7 +51935,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
   __Pyx_INCREF(__pyx_int_0);
   __pyx_v_sofar = __pyx_int_0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1422
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1418
  *         self.findexes1.reset()
  *         sofar = 0
  *         for i in range(num_chunks):             # <<<<<<<<<<<<<<
@@ -50206,7 +51946,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
   for (__pyx_t_4 = 0; __pyx_t_4 < __pyx_t_3; __pyx_t_4+=1) {
     __pyx_v_i = __pyx_t_4;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1423
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1419
  *         sofar = 0
  *         for i in range(num_chunks):
  *             for j in range(chunklen[i]):             # <<<<<<<<<<<<<<
@@ -50217,35 +51957,35 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
     for (__pyx_t_6 = 0; __pyx_t_6 < __pyx_t_5; __pyx_t_6+=1) {
       __pyx_v_j = __pyx_t_6;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1424
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1420
  *         for i in range(num_chunks):
  *             for j in range(chunklen[i]):
  *                 self.findexes1.append(matching.arr[matching.start+i]+j-f_sent_start);             # <<<<<<<<<<<<<<
  *                 sofar += 1
  *             if (i+1<num_chunks):
  */
-      __pyx_t_2 = PyInt_FromLong((((__pyx_v_matching->arr[(__pyx_v_matching->start + __pyx_v_i)]) + __pyx_v_j) - __pyx_v_f_sent_start)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1424; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyInt_FromLong((((__pyx_v_matching->arr[(__pyx_v_matching->start + __pyx_v_i)]) + __pyx_v_j) - __pyx_v_f_sent_start)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1420; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_1 = __Pyx_PyObject_Append(((PyObject *)__pyx_v_self->findexes1), __pyx_t_2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1424; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = __Pyx_PyObject_Append(((PyObject *)__pyx_v_self->findexes1), __pyx_t_2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1420; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1425
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1421
  *             for j in range(chunklen[i]):
  *                 self.findexes1.append(matching.arr[matching.start+i]+j-f_sent_start);
  *                 sofar += 1             # <<<<<<<<<<<<<<
  *             if (i+1<num_chunks):
  *                 self.findexes1.append(phrase[sofar])
  */
-      __pyx_t_1 = PyNumber_InPlaceAdd(__pyx_v_sofar, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1425; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyNumber_InPlaceAdd(__pyx_v_sofar, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1421; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
       __Pyx_DECREF(__pyx_v_sofar);
       __pyx_v_sofar = __pyx_t_1;
       __pyx_t_1 = 0;
     }
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1426
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1422
  *                 self.findexes1.append(matching.arr[matching.start+i]+j-f_sent_start);
  *                 sofar += 1
  *             if (i+1<num_chunks):             # <<<<<<<<<<<<<<
@@ -50255,28 +51995,28 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
     __pyx_t_7 = ((__pyx_v_i + 1) < __pyx_v_num_chunks);
     if (__pyx_t_7) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1427
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1423
  *                 sofar += 1
  *             if (i+1<num_chunks):
  *                 self.findexes1.append(phrase[sofar])             # <<<<<<<<<<<<<<
  *                 sofar += 1
  * 
  */
-      __pyx_t_1 = PyObject_GetItem(((PyObject *)__pyx_v_phrase), __pyx_v_sofar); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1427; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyObject_GetItem(((PyObject *)__pyx_v_phrase), __pyx_v_sofar); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1423; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
-      __pyx_t_2 = __Pyx_PyObject_Append(((PyObject *)__pyx_v_self->findexes1), __pyx_t_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1427; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = __Pyx_PyObject_Append(((PyObject *)__pyx_v_self->findexes1), __pyx_t_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1423; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1428
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1424
  *             if (i+1<num_chunks):
  *                 self.findexes1.append(phrase[sofar])
  *                 sofar += 1             # <<<<<<<<<<<<<<
  * 
  * 
  */
-      __pyx_t_2 = PyNumber_InPlaceAdd(__pyx_v_sofar, __pyx_int_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1428; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyNumber_InPlaceAdd(__pyx_v_sofar, __pyx_int_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1424; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_v_sofar);
       __pyx_v_sofar = __pyx_t_2;
@@ -50286,7 +52026,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
     __pyx_L7:;
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1431
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1427
  * 
  * 
  *         e_links_low = <int*> malloc(e_sent_len*sizeof(int))             # <<<<<<<<<<<<<<
@@ -50295,7 +52035,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
   __pyx_v_e_links_low = ((int *)malloc((__pyx_v_e_sent_len * (sizeof(int)))));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1432
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1428
  * 
  *         e_links_low = <int*> malloc(e_sent_len*sizeof(int))
  *         e_links_high = <int*> malloc(e_sent_len*sizeof(int))             # <<<<<<<<<<<<<<
@@ -50304,7 +52044,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
   __pyx_v_e_links_high = ((int *)malloc((__pyx_v_e_sent_len * (sizeof(int)))));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1433
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1429
  *         e_links_low = <int*> malloc(e_sent_len*sizeof(int))
  *         e_links_high = <int*> malloc(e_sent_len*sizeof(int))
  *         f_links_low = <int*> malloc(f_sent_len*sizeof(int))             # <<<<<<<<<<<<<<
@@ -50313,7 +52053,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
   __pyx_v_f_links_low = ((int *)malloc((__pyx_v_f_sent_len * (sizeof(int)))));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1434
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1430
  *         e_links_high = <int*> malloc(e_sent_len*sizeof(int))
  *         f_links_low = <int*> malloc(f_sent_len*sizeof(int))
  *         f_links_high = <int*> malloc(f_sent_len*sizeof(int))             # <<<<<<<<<<<<<<
@@ -50322,7 +52062,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
   __pyx_v_f_links_high = ((int *)malloc((__pyx_v_f_sent_len * (sizeof(int)))));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1435
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1431
  *         f_links_low = <int*> malloc(f_sent_len*sizeof(int))
  *         f_links_high = <int*> malloc(f_sent_len*sizeof(int))
  *         f_gap_low = <int*> malloc((num_chunks+1)*sizeof(int))             # <<<<<<<<<<<<<<
@@ -50331,7 +52071,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
   __pyx_v_f_gap_low = ((int *)malloc(((__pyx_v_num_chunks + 1) * (sizeof(int)))));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1436
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1432
  *         f_links_high = <int*> malloc(f_sent_len*sizeof(int))
  *         f_gap_low = <int*> malloc((num_chunks+1)*sizeof(int))
  *         f_gap_high = <int*> malloc((num_chunks+1)*sizeof(int))             # <<<<<<<<<<<<<<
@@ -50340,7 +52080,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
   __pyx_v_f_gap_high = ((int *)malloc(((__pyx_v_num_chunks + 1) * (sizeof(int)))));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1437
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1433
  *         f_gap_low = <int*> malloc((num_chunks+1)*sizeof(int))
  *         f_gap_high = <int*> malloc((num_chunks+1)*sizeof(int))
  *         e_gap_low = <int*> malloc((num_chunks+1)*sizeof(int))             # <<<<<<<<<<<<<<
@@ -50349,7 +52089,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
   __pyx_v_e_gap_low = ((int *)malloc(((__pyx_v_num_chunks + 1) * (sizeof(int)))));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1438
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1434
  *         f_gap_high = <int*> malloc((num_chunks+1)*sizeof(int))
  *         e_gap_low = <int*> malloc((num_chunks+1)*sizeof(int))
  *         e_gap_high = <int*> malloc((num_chunks+1)*sizeof(int))             # <<<<<<<<<<<<<<
@@ -50358,7 +52098,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
   __pyx_v_e_gap_high = ((int *)malloc(((__pyx_v_num_chunks + 1) * (sizeof(int)))));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1439
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1435
  *         e_gap_low = <int*> malloc((num_chunks+1)*sizeof(int))
  *         e_gap_high = <int*> malloc((num_chunks+1)*sizeof(int))
  *         memset(f_gap_low, 0, (num_chunks+1)*sizeof(int))             # <<<<<<<<<<<<<<
@@ -50367,7 +52107,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
   memset(__pyx_v_f_gap_low, 0, ((__pyx_v_num_chunks + 1) * (sizeof(int))));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1440
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1436
  *         e_gap_high = <int*> malloc((num_chunks+1)*sizeof(int))
  *         memset(f_gap_low, 0, (num_chunks+1)*sizeof(int))
  *         memset(f_gap_high, 0, (num_chunks+1)*sizeof(int))             # <<<<<<<<<<<<<<
@@ -50376,7 +52116,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
   memset(__pyx_v_f_gap_high, 0, ((__pyx_v_num_chunks + 1) * (sizeof(int))));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1441
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1437
  *         memset(f_gap_low, 0, (num_chunks+1)*sizeof(int))
  *         memset(f_gap_high, 0, (num_chunks+1)*sizeof(int))
  *         memset(e_gap_low, 0, (num_chunks+1)*sizeof(int))             # <<<<<<<<<<<<<<
@@ -50385,7 +52125,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
   memset(__pyx_v_e_gap_low, 0, ((__pyx_v_num_chunks + 1) * (sizeof(int))));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1442
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1438
  *         memset(f_gap_high, 0, (num_chunks+1)*sizeof(int))
  *         memset(e_gap_low, 0, (num_chunks+1)*sizeof(int))
  *         memset(e_gap_high, 0, (num_chunks+1)*sizeof(int))             # <<<<<<<<<<<<<<
@@ -50394,7 +52134,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
   memset(__pyx_v_e_gap_high, 0, ((__pyx_v_num_chunks + 1) * (sizeof(int))));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1444
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1440
  *         memset(e_gap_high, 0, (num_chunks+1)*sizeof(int))
  * 
  *         reason_for_failure = ""             # <<<<<<<<<<<<<<
@@ -50404,7 +52144,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
   __Pyx_INCREF(((PyObject *)__pyx_kp_s_45));
   __pyx_v_reason_for_failure = ((PyObject *)__pyx_kp_s_45);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1446
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1442
  *         reason_for_failure = ""
  * 
  *         for i from 0 <= i < e_sent_len:             # <<<<<<<<<<<<<<
@@ -50414,7 +52154,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
   __pyx_t_3 = __pyx_v_e_sent_len;
   for (__pyx_v_i = 0; __pyx_v_i < __pyx_t_3; __pyx_v_i++) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1447
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1443
  * 
  *         for i from 0 <= i < e_sent_len:
  *             e_links_low[i] = -1             # <<<<<<<<<<<<<<
@@ -50423,7 +52163,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
     (__pyx_v_e_links_low[__pyx_v_i]) = -1;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1448
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1444
  *         for i from 0 <= i < e_sent_len:
  *             e_links_low[i] = -1
  *             e_links_high[i] = -1             # <<<<<<<<<<<<<<
@@ -50433,7 +52173,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
     (__pyx_v_e_links_high[__pyx_v_i]) = -1;
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1449
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1445
  *             e_links_low[i] = -1
  *             e_links_high[i] = -1
  *         for i from 0 <= i < f_sent_len:             # <<<<<<<<<<<<<<
@@ -50443,7 +52183,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
   __pyx_t_3 = __pyx_v_f_sent_len;
   for (__pyx_v_i = 0; __pyx_v_i < __pyx_t_3; __pyx_v_i++) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1450
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1446
  *             e_links_high[i] = -1
  *         for i from 0 <= i < f_sent_len:
  *             f_links_low[i] = -1             # <<<<<<<<<<<<<<
@@ -50452,7 +52192,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
     (__pyx_v_f_links_low[__pyx_v_i]) = -1;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1451
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1447
  *         for i from 0 <= i < f_sent_len:
  *             f_links_low[i] = -1
  *             f_links_high[i] = -1             # <<<<<<<<<<<<<<
@@ -50462,7 +52202,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
     (__pyx_v_f_links_high[__pyx_v_i]) = -1;
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1457
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1453
  *         # links that we care about (but then how to look up
  *         # when we want to check something on the e side?)
  *         i = 0             # <<<<<<<<<<<<<<
@@ -50471,7 +52211,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
   __pyx_v_i = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1458
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1454
  *         # when we want to check something on the e side?)
  *         i = 0
  *         while i < num_links*2:             # <<<<<<<<<<<<<<
@@ -50482,7 +52222,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
     __pyx_t_7 = (__pyx_v_i < (__pyx_v_num_links * 2));
     if (!__pyx_t_7) break;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1459
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1455
  *         i = 0
  *         while i < num_links*2:
  *             f_i = sent_links[i]             # <<<<<<<<<<<<<<
@@ -50491,7 +52231,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
     __pyx_v_f_i = (__pyx_v_sent_links[__pyx_v_i]);
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1460
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1456
  *         while i < num_links*2:
  *             f_i = sent_links[i]
  *             e_i = sent_links[i+1]             # <<<<<<<<<<<<<<
@@ -50500,7 +52240,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
     __pyx_v_e_i = (__pyx_v_sent_links[(__pyx_v_i + 1)]);
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1461
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1457
  *             f_i = sent_links[i]
  *             e_i = sent_links[i+1]
  *             if f_links_low[f_i] == -1 or f_links_low[f_i] > e_i:             # <<<<<<<<<<<<<<
@@ -50516,7 +52256,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
     }
     if (__pyx_t_9) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1462
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1458
  *             e_i = sent_links[i+1]
  *             if f_links_low[f_i] == -1 or f_links_low[f_i] > e_i:
  *                 f_links_low[f_i] = e_i             # <<<<<<<<<<<<<<
@@ -50528,7 +52268,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
     }
     __pyx_L14:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1463
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1459
  *             if f_links_low[f_i] == -1 or f_links_low[f_i] > e_i:
  *                 f_links_low[f_i] = e_i
  *             if f_links_high[f_i] == -1 or f_links_high[f_i] < e_i + 1:             # <<<<<<<<<<<<<<
@@ -50544,7 +52284,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
     }
     if (__pyx_t_8) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1464
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1460
  *                 f_links_low[f_i] = e_i
  *             if f_links_high[f_i] == -1 or f_links_high[f_i] < e_i + 1:
  *                 f_links_high[f_i] = e_i + 1             # <<<<<<<<<<<<<<
@@ -50556,7 +52296,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
     }
     __pyx_L15:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1465
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1461
  *             if f_links_high[f_i] == -1 or f_links_high[f_i] < e_i + 1:
  *                 f_links_high[f_i] = e_i + 1
  *             if e_links_low[e_i] == -1 or e_links_low[e_i] > f_i:             # <<<<<<<<<<<<<<
@@ -50572,7 +52312,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
     }
     if (__pyx_t_7) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1466
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1462
  *                 f_links_high[f_i] = e_i + 1
  *             if e_links_low[e_i] == -1 or e_links_low[e_i] > f_i:
  *                 e_links_low[e_i] = f_i             # <<<<<<<<<<<<<<
@@ -50584,7 +52324,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
     }
     __pyx_L16:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1467
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1463
  *             if e_links_low[e_i] == -1 or e_links_low[e_i] > f_i:
  *                 e_links_low[e_i] = f_i
  *             if e_links_high[e_i] == -1 or e_links_high[e_i] < f_i + 1:             # <<<<<<<<<<<<<<
@@ -50600,7 +52340,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
     }
     if (__pyx_t_9) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1468
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1464
  *                 e_links_low[e_i] = f_i
  *             if e_links_high[e_i] == -1 or e_links_high[e_i] < f_i + 1:
  *                 e_links_high[e_i] = f_i + 1             # <<<<<<<<<<<<<<
@@ -50612,7 +52352,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
     }
     __pyx_L17:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1469
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1465
  *             if e_links_high[e_i] == -1 or e_links_high[e_i] < f_i + 1:
  *                 e_links_high[e_i] = f_i + 1
  *             i = i + 2             # <<<<<<<<<<<<<<
@@ -50622,19 +52362,19 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
     __pyx_v_i = (__pyx_v_i + 2);
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1471
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1467
  *             i = i + 2
  * 
  *         als = []             # <<<<<<<<<<<<<<
  *         for x in range(matching.start,matching.end):
  *             al = (matching.arr[x]-f_sent_start,f_links_low[matching.arr[x]-f_sent_start])
  */
-  __pyx_t_2 = PyList_New(0); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1471; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyList_New(0); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1467; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __pyx_v_als = __pyx_t_2;
   __pyx_t_2 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1472
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1468
  * 
  *         als = []
  *         for x in range(matching.start,matching.end):             # <<<<<<<<<<<<<<
@@ -50645,18 +52385,18 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
   for (__pyx_t_4 = __pyx_v_matching->start; __pyx_t_4 < __pyx_t_3; __pyx_t_4+=1) {
     __pyx_v_x = __pyx_t_4;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1473
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1469
  *         als = []
  *         for x in range(matching.start,matching.end):
  *             al = (matching.arr[x]-f_sent_start,f_links_low[matching.arr[x]-f_sent_start])             # <<<<<<<<<<<<<<
  *             als.append(al)
  *         # check all source-side alignment constraints
  */
-    __pyx_t_2 = PyInt_FromLong(((__pyx_v_matching->arr[__pyx_v_x]) - __pyx_v_f_sent_start)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1473; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyInt_FromLong(((__pyx_v_matching->arr[__pyx_v_x]) - __pyx_v_f_sent_start)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1469; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_1 = PyInt_FromLong((__pyx_v_f_links_low[((__pyx_v_matching->arr[__pyx_v_x]) - __pyx_v_f_sent_start)])); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1473; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyInt_FromLong((__pyx_v_f_links_low[((__pyx_v_matching->arr[__pyx_v_x]) - __pyx_v_f_sent_start)])); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1469; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_10 = PyTuple_New(2); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1473; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_10 = PyTuple_New(2); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1469; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_10);
     PyTuple_SET_ITEM(__pyx_t_10, 0, __pyx_t_2);
     __Pyx_GIVEREF(__pyx_t_2);
@@ -50668,17 +52408,17 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
     __pyx_v_al = __pyx_t_10;
     __pyx_t_10 = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1474
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1470
  *         for x in range(matching.start,matching.end):
  *             al = (matching.arr[x]-f_sent_start,f_links_low[matching.arr[x]-f_sent_start])
  *             als.append(al)             # <<<<<<<<<<<<<<
  *         # check all source-side alignment constraints
  *         met_constraints = 1
  */
-    __pyx_t_11 = PyList_Append(__pyx_v_als, ((PyObject *)__pyx_v_al)); if (unlikely(__pyx_t_11 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1474; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_11 = PyList_Append(__pyx_v_als, ((PyObject *)__pyx_v_al)); if (unlikely(__pyx_t_11 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1470; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1476
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1472
  *             als.append(al)
  *         # check all source-side alignment constraints
  *         met_constraints = 1             # <<<<<<<<<<<<<<
@@ -50687,7 +52427,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
   __pyx_v_met_constraints = 1;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1477
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1473
  *         # check all source-side alignment constraints
  *         met_constraints = 1
  *         if self.require_aligned_terminal:             # <<<<<<<<<<<<<<
@@ -50696,7 +52436,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
   if (__pyx_v_self->require_aligned_terminal) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1478
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1474
  *         met_constraints = 1
  *         if self.require_aligned_terminal:
  *             num_aligned_chunks = 0             # <<<<<<<<<<<<<<
@@ -50705,7 +52445,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
     __pyx_v_num_aligned_chunks = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1479
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1475
  *         if self.require_aligned_terminal:
  *             num_aligned_chunks = 0
  *             for i from 0 <= i < num_chunks:             # <<<<<<<<<<<<<<
@@ -50715,7 +52455,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
     __pyx_t_3 = __pyx_v_num_chunks;
     for (__pyx_v_i = 0; __pyx_v_i < __pyx_t_3; __pyx_v_i++) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1480
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1476
  *             num_aligned_chunks = 0
  *             for i from 0 <= i < num_chunks:
  *                 for j from 0 <= j < chunklen[i]:             # <<<<<<<<<<<<<<
@@ -50725,7 +52465,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
       __pyx_t_4 = (__pyx_v_chunklen[__pyx_v_i]);
       for (__pyx_v_j = 0; __pyx_v_j < __pyx_t_4; __pyx_v_j++) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1481
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1477
  *             for i from 0 <= i < num_chunks:
  *                 for j from 0 <= j < chunklen[i]:
  *                     if f_links_low[matching.arr[matching.start+i]+j-f_sent_start] > -1:             # <<<<<<<<<<<<<<
@@ -50735,7 +52475,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
         __pyx_t_9 = ((__pyx_v_f_links_low[(((__pyx_v_matching->arr[(__pyx_v_matching->start + __pyx_v_i)]) + __pyx_v_j) - __pyx_v_f_sent_start)]) > -1);
         if (__pyx_t_9) {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1482
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1478
  *                 for j from 0 <= j < chunklen[i]:
  *                     if f_links_low[matching.arr[matching.start+i]+j-f_sent_start] > -1:
  *                         num_aligned_chunks = num_aligned_chunks + 1             # <<<<<<<<<<<<<<
@@ -50744,7 +52484,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
           __pyx_v_num_aligned_chunks = (__pyx_v_num_aligned_chunks + 1);
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1483
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1479
  *                     if f_links_low[matching.arr[matching.start+i]+j-f_sent_start] > -1:
  *                         num_aligned_chunks = num_aligned_chunks + 1
  *                         break             # <<<<<<<<<<<<<<
@@ -50759,7 +52499,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
       __pyx_L24_break:;
     }
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1484
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1480
  *                         num_aligned_chunks = num_aligned_chunks + 1
  *                         break
  *             if num_aligned_chunks == 0:             # <<<<<<<<<<<<<<
@@ -50769,18 +52509,18 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
     __pyx_t_9 = (__pyx_v_num_aligned_chunks == 0);
     if (__pyx_t_9) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1485
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1481
  *                         break
  *             if num_aligned_chunks == 0:
  *                 reason_for_failure = "No aligned terminals"             # <<<<<<<<<<<<<<
  *                 met_constraints = 0
  *             if self.require_aligned_chunks and num_aligned_chunks < num_chunks:
  */
-      __Pyx_INCREF(((PyObject *)__pyx_kp_s_126));
+      __Pyx_INCREF(((PyObject *)__pyx_kp_s_128));
       __Pyx_DECREF(__pyx_v_reason_for_failure);
-      __pyx_v_reason_for_failure = ((PyObject *)__pyx_kp_s_126);
+      __pyx_v_reason_for_failure = ((PyObject *)__pyx_kp_s_128);
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1486
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1482
  *             if num_aligned_chunks == 0:
  *                 reason_for_failure = "No aligned terminals"
  *                 met_constraints = 0             # <<<<<<<<<<<<<<
@@ -50792,7 +52532,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
     }
     __pyx_L26:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1487
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1483
  *                 reason_for_failure = "No aligned terminals"
  *                 met_constraints = 0
  *             if self.require_aligned_chunks and num_aligned_chunks < num_chunks:             # <<<<<<<<<<<<<<
@@ -50807,18 +52547,18 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
     }
     if (__pyx_t_7) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1488
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1484
  *                 met_constraints = 0
  *             if self.require_aligned_chunks and num_aligned_chunks < num_chunks:
  *                 reason_for_failure = "Unaligned chunk"             # <<<<<<<<<<<<<<
  *                 met_constraints = 0
  * 
  */
-      __Pyx_INCREF(((PyObject *)__pyx_kp_s_127));
+      __Pyx_INCREF(((PyObject *)__pyx_kp_s_129));
       __Pyx_DECREF(__pyx_v_reason_for_failure);
-      __pyx_v_reason_for_failure = ((PyObject *)__pyx_kp_s_127);
+      __pyx_v_reason_for_failure = ((PyObject *)__pyx_kp_s_129);
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1489
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1485
  *             if self.require_aligned_chunks and num_aligned_chunks < num_chunks:
  *                 reason_for_failure = "Unaligned chunk"
  *                 met_constraints = 0             # <<<<<<<<<<<<<<
@@ -50833,7 +52573,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
   }
   __pyx_L20:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1491
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1487
  *                 met_constraints = 0
  * 
  *         if met_constraints and self.tight_phrases:             # <<<<<<<<<<<<<<
@@ -50847,7 +52587,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
   }
   if (__pyx_t_7) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1493
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1489
  *         if met_constraints and self.tight_phrases:
  *             # outside edge constraints are checked later
  *             for i from 0 <= i < num_chunks-1:             # <<<<<<<<<<<<<<
@@ -50857,7 +52597,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
     __pyx_t_12 = (__pyx_v_num_chunks - 1);
     for (__pyx_v_i = 0; __pyx_v_i < __pyx_t_12; __pyx_v_i++) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1494
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1490
  *             # outside edge constraints are checked later
  *             for i from 0 <= i < num_chunks-1:
  *                 if f_links_low[matching.arr[matching.start+i]+chunklen[i]-f_sent_start] == -1:             # <<<<<<<<<<<<<<
@@ -50867,18 +52607,18 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
       __pyx_t_7 = ((__pyx_v_f_links_low[(((__pyx_v_matching->arr[(__pyx_v_matching->start + __pyx_v_i)]) + (__pyx_v_chunklen[__pyx_v_i])) - __pyx_v_f_sent_start)]) == -1);
       if (__pyx_t_7) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1495
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1491
  *             for i from 0 <= i < num_chunks-1:
  *                 if f_links_low[matching.arr[matching.start+i]+chunklen[i]-f_sent_start] == -1:
  *                     reason_for_failure = "Gaps are not tight phrases"             # <<<<<<<<<<<<<<
  *                     met_constraints = 0
  *                     break
  */
-        __Pyx_INCREF(((PyObject *)__pyx_kp_s_128));
+        __Pyx_INCREF(((PyObject *)__pyx_kp_s_130));
         __Pyx_DECREF(__pyx_v_reason_for_failure);
-        __pyx_v_reason_for_failure = ((PyObject *)__pyx_kp_s_128);
+        __pyx_v_reason_for_failure = ((PyObject *)__pyx_kp_s_130);
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1496
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1492
  *                 if f_links_low[matching.arr[matching.start+i]+chunklen[i]-f_sent_start] == -1:
  *                     reason_for_failure = "Gaps are not tight phrases"
  *                     met_constraints = 0             # <<<<<<<<<<<<<<
@@ -50887,7 +52627,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
         __pyx_v_met_constraints = 0;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1497
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1493
  *                     reason_for_failure = "Gaps are not tight phrases"
  *                     met_constraints = 0
  *                     break             # <<<<<<<<<<<<<<
@@ -50899,7 +52639,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
       }
       __pyx_L31:;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1498
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1494
  *                     met_constraints = 0
  *                     break
  *                 if f_links_low[matching.arr[matching.start+i+1]-1-f_sent_start] == -1:             # <<<<<<<<<<<<<<
@@ -50909,18 +52649,18 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
       __pyx_t_7 = ((__pyx_v_f_links_low[(((__pyx_v_matching->arr[((__pyx_v_matching->start + __pyx_v_i) + 1)]) - 1) - __pyx_v_f_sent_start)]) == -1);
       if (__pyx_t_7) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1499
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1495
  *                     break
  *                 if f_links_low[matching.arr[matching.start+i+1]-1-f_sent_start] == -1:
  *                     reason_for_failure = "Gaps are not tight phrases"             # <<<<<<<<<<<<<<
  *                     met_constraints = 0
  *                     break
  */
-        __Pyx_INCREF(((PyObject *)__pyx_kp_s_128));
+        __Pyx_INCREF(((PyObject *)__pyx_kp_s_130));
         __Pyx_DECREF(__pyx_v_reason_for_failure);
-        __pyx_v_reason_for_failure = ((PyObject *)__pyx_kp_s_128);
+        __pyx_v_reason_for_failure = ((PyObject *)__pyx_kp_s_130);
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1500
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1496
  *                 if f_links_low[matching.arr[matching.start+i+1]-1-f_sent_start] == -1:
  *                     reason_for_failure = "Gaps are not tight phrases"
  *                     met_constraints = 0             # <<<<<<<<<<<<<<
@@ -50929,7 +52669,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
         __pyx_v_met_constraints = 0;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1501
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1497
  *                     reason_for_failure = "Gaps are not tight phrases"
  *                     met_constraints = 0
  *                     break             # <<<<<<<<<<<<<<
@@ -50946,7 +52686,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
   }
   __pyx_L28:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1503
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1499
  *                     break
  * 
  *         f_low = matching.arr[matching.start] - f_sent_start             # <<<<<<<<<<<<<<
@@ -50955,7 +52695,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
   __pyx_v_f_low = ((__pyx_v_matching->arr[__pyx_v_matching->start]) - __pyx_v_f_sent_start);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1504
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1500
  * 
  *         f_low = matching.arr[matching.start] - f_sent_start
  *         f_high = matching.arr[matching.start + matching.size - 1] + chunklen[num_chunks-1] - f_sent_start             # <<<<<<<<<<<<<<
@@ -50964,7 +52704,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
   __pyx_v_f_high = (((__pyx_v_matching->arr[((__pyx_v_matching->start + __pyx_v_matching->size) - 1)]) + (__pyx_v_chunklen[(__pyx_v_num_chunks - 1)])) - __pyx_v_f_sent_start);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1505
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1501
  *         f_low = matching.arr[matching.start] - f_sent_start
  *         f_high = matching.arr[matching.start + matching.size - 1] + chunklen[num_chunks-1] - f_sent_start
  *         if met_constraints:             # <<<<<<<<<<<<<<
@@ -50973,17 +52713,17 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
   if (__pyx_v_met_constraints) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1507
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1503
  *         if met_constraints:
  * 
  *             if self.find_fixpoint(f_low, f_high, f_links_low, f_links_high, e_links_low, e_links_high,             # <<<<<<<<<<<<<<
  *                                 -1, -1, &e_low, &e_high, &f_back_low, &f_back_high, f_sent_len, e_sent_len,
  *                                 self.train_max_initial_size, self.train_max_initial_size,
  */
-    __pyx_t_10 = PyInt_FromLong(__pyx_v_f_high); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1507; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_10 = PyInt_FromLong(__pyx_v_f_high); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1503; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_10);
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1511
+    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1507
  *                                 self.train_max_initial_size, self.train_max_initial_size,
  *                                 self.train_min_gap_size, 0,
  *                                 self.max_nonterminals - num_chunks + 1, 1, 1, 0, 0):             # <<<<<<<<<<<<<<
@@ -50994,7 +52734,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
     __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
     if (__pyx_t_3) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1512
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1508
  *                                 self.train_min_gap_size, 0,
  *                                 self.max_nonterminals - num_chunks + 1, 1, 1, 0, 0):
  *                 gap_error = 0             # <<<<<<<<<<<<<<
@@ -51003,7 +52743,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
       __pyx_v_gap_error = 0;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1513
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1509
  *                                 self.max_nonterminals - num_chunks + 1, 1, 1, 0, 0):
  *                 gap_error = 0
  *                 num_gaps = 0             # <<<<<<<<<<<<<<
@@ -51012,7 +52752,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
       __pyx_v_num_gaps = 0;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1515
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1511
  *                 num_gaps = 0
  * 
  *                 if f_back_low < f_low:             # <<<<<<<<<<<<<<
@@ -51022,7 +52762,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
       __pyx_t_7 = (__pyx_v_f_back_low < __pyx_v_f_low);
       if (__pyx_t_7) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1516
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1512
  * 
  *                 if f_back_low < f_low:
  *                     f_gap_low[0] = f_back_low             # <<<<<<<<<<<<<<
@@ -51031,7 +52771,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
         (__pyx_v_f_gap_low[0]) = __pyx_v_f_back_low;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1517
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1513
  *                 if f_back_low < f_low:
  *                     f_gap_low[0] = f_back_low
  *                     f_gap_high[0] = f_low             # <<<<<<<<<<<<<<
@@ -51040,7 +52780,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
         (__pyx_v_f_gap_high[0]) = __pyx_v_f_low;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1518
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1514
  *                     f_gap_low[0] = f_back_low
  *                     f_gap_high[0] = f_low
  *                     num_gaps = 1             # <<<<<<<<<<<<<<
@@ -51049,7 +52789,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
         __pyx_v_num_gaps = 1;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1519
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1515
  *                     f_gap_high[0] = f_low
  *                     num_gaps = 1
  *                     gap_start = 0             # <<<<<<<<<<<<<<
@@ -51058,7 +52798,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
         __pyx_v_gap_start = 0;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1520
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1516
  *                     num_gaps = 1
  *                     gap_start = 0
  *                     phrase_len = phrase_len+1             # <<<<<<<<<<<<<<
@@ -51067,7 +52807,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
         __pyx_v_phrase_len = (__pyx_v_phrase_len + 1);
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1521
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1517
  *                     gap_start = 0
  *                     phrase_len = phrase_len+1
  *                     if phrase_len > self.max_length:             # <<<<<<<<<<<<<<
@@ -51077,7 +52817,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
         __pyx_t_7 = (__pyx_v_phrase_len > __pyx_v_self->max_length);
         if (__pyx_t_7) {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1522
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1518
  *                     phrase_len = phrase_len+1
  *                     if phrase_len > self.max_length:
  *                         gap_error = 1             # <<<<<<<<<<<<<<
@@ -51089,7 +52829,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
         }
         __pyx_L36:;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1523
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1519
  *                     if phrase_len > self.max_length:
  *                         gap_error = 1
  *                     if self.tight_phrases:             # <<<<<<<<<<<<<<
@@ -51098,7 +52838,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
         if (__pyx_v_self->tight_phrases) {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1524
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1520
  *                         gap_error = 1
  *                     if self.tight_phrases:
  *                         if f_links_low[f_back_low] == -1 or f_links_low[f_low-1] == -1:             # <<<<<<<<<<<<<<
@@ -51114,7 +52854,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
           }
           if (__pyx_t_8) {
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1525
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1521
  *                     if self.tight_phrases:
  *                         if f_links_low[f_back_low] == -1 or f_links_low[f_low-1] == -1:
  *                             gap_error = 1             # <<<<<<<<<<<<<<
@@ -51123,16 +52863,16 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
             __pyx_v_gap_error = 1;
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1526
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1522
  *                         if f_links_low[f_back_low] == -1 or f_links_low[f_low-1] == -1:
  *                             gap_error = 1
  *                             reason_for_failure = "Inside edges of preceding subphrase are not tight"             # <<<<<<<<<<<<<<
  *                 else:
  *                     gap_start = 1
  */
-            __Pyx_INCREF(((PyObject *)__pyx_kp_s_129));
+            __Pyx_INCREF(((PyObject *)__pyx_kp_s_131));
             __Pyx_DECREF(__pyx_v_reason_for_failure);
-            __pyx_v_reason_for_failure = ((PyObject *)__pyx_kp_s_129);
+            __pyx_v_reason_for_failure = ((PyObject *)__pyx_kp_s_131);
             goto __pyx_L38;
           }
           __pyx_L38:;
@@ -51143,7 +52883,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
       }
       /*else*/ {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1528
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1524
  *                             reason_for_failure = "Inside edges of preceding subphrase are not tight"
  *                 else:
  *                     gap_start = 1             # <<<<<<<<<<<<<<
@@ -51152,7 +52892,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
         __pyx_v_gap_start = 1;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1529
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1525
  *                 else:
  *                     gap_start = 1
  *                     if self.tight_phrases and f_links_low[f_low] == -1:             # <<<<<<<<<<<<<<
@@ -51167,7 +52907,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
         }
         if (__pyx_t_7) {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1532
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1528
  *                         # this is not a hard error.    we can't extract this phrase
  *                         # but we still might be able to extract a superphrase
  *                         met_constraints = 0             # <<<<<<<<<<<<<<
@@ -51181,7 +52921,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
       }
       __pyx_L35:;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1534
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1530
  *                         met_constraints = 0
  * 
  *                 for i from 0 <= i < matching.size - 1:             # <<<<<<<<<<<<<<
@@ -51191,7 +52931,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
       __pyx_t_12 = (__pyx_v_matching->size - 1);
       for (__pyx_v_i = 0; __pyx_v_i < __pyx_t_12; __pyx_v_i++) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1535
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1531
  * 
  *                 for i from 0 <= i < matching.size - 1:
  *                     f_gap_low[1+i] = matching.arr[matching.start+i] + chunklen[i] - f_sent_start             # <<<<<<<<<<<<<<
@@ -51200,7 +52940,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
         (__pyx_v_f_gap_low[(1 + __pyx_v_i)]) = (((__pyx_v_matching->arr[(__pyx_v_matching->start + __pyx_v_i)]) + (__pyx_v_chunklen[__pyx_v_i])) - __pyx_v_f_sent_start);
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1536
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1532
  *                 for i from 0 <= i < matching.size - 1:
  *                     f_gap_low[1+i] = matching.arr[matching.start+i] + chunklen[i] - f_sent_start
  *                     f_gap_high[1+i] = matching.arr[matching.start+i+1] - f_sent_start             # <<<<<<<<<<<<<<
@@ -51209,7 +52949,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
         (__pyx_v_f_gap_high[(1 + __pyx_v_i)]) = ((__pyx_v_matching->arr[((__pyx_v_matching->start + __pyx_v_i) + 1)]) - __pyx_v_f_sent_start);
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1537
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1533
  *                     f_gap_low[1+i] = matching.arr[matching.start+i] + chunklen[i] - f_sent_start
  *                     f_gap_high[1+i] = matching.arr[matching.start+i+1] - f_sent_start
  *                     num_gaps = num_gaps + 1             # <<<<<<<<<<<<<<
@@ -51219,7 +52959,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
         __pyx_v_num_gaps = (__pyx_v_num_gaps + 1);
       }
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1539
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1535
  *                     num_gaps = num_gaps + 1
  * 
  *                 if f_high < f_back_high:             # <<<<<<<<<<<<<<
@@ -51229,7 +52969,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
       __pyx_t_7 = (__pyx_v_f_high < __pyx_v_f_back_high);
       if (__pyx_t_7) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1540
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1536
  * 
  *                 if f_high < f_back_high:
  *                     f_gap_low[gap_start+num_gaps] = f_high             # <<<<<<<<<<<<<<
@@ -51238,7 +52978,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
         (__pyx_v_f_gap_low[(__pyx_v_gap_start + __pyx_v_num_gaps)]) = __pyx_v_f_high;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1541
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1537
  *                 if f_high < f_back_high:
  *                     f_gap_low[gap_start+num_gaps] = f_high
  *                     f_gap_high[gap_start+num_gaps] = f_back_high             # <<<<<<<<<<<<<<
@@ -51247,7 +52987,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
         (__pyx_v_f_gap_high[(__pyx_v_gap_start + __pyx_v_num_gaps)]) = __pyx_v_f_back_high;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1542
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1538
  *                     f_gap_low[gap_start+num_gaps] = f_high
  *                     f_gap_high[gap_start+num_gaps] = f_back_high
  *                     num_gaps = num_gaps + 1             # <<<<<<<<<<<<<<
@@ -51256,7 +52996,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
         __pyx_v_num_gaps = (__pyx_v_num_gaps + 1);
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1543
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1539
  *                     f_gap_high[gap_start+num_gaps] = f_back_high
  *                     num_gaps = num_gaps + 1
  *                     phrase_len = phrase_len+1             # <<<<<<<<<<<<<<
@@ -51265,7 +53005,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
         __pyx_v_phrase_len = (__pyx_v_phrase_len + 1);
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1544
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1540
  *                     num_gaps = num_gaps + 1
  *                     phrase_len = phrase_len+1
  *                     if phrase_len > self.max_length:             # <<<<<<<<<<<<<<
@@ -51275,7 +53015,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
         __pyx_t_7 = (__pyx_v_phrase_len > __pyx_v_self->max_length);
         if (__pyx_t_7) {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1545
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1541
  *                     phrase_len = phrase_len+1
  *                     if phrase_len > self.max_length:
  *                         gap_error = 1             # <<<<<<<<<<<<<<
@@ -51287,7 +53027,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
         }
         __pyx_L43:;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1546
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1542
  *                     if phrase_len > self.max_length:
  *                         gap_error = 1
  *                     if self.tight_phrases:             # <<<<<<<<<<<<<<
@@ -51296,7 +53036,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
         if (__pyx_v_self->tight_phrases) {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1547
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1543
  *                         gap_error = 1
  *                     if self.tight_phrases:
  *                         if f_links_low[f_back_high-1] == -1 or f_links_low[f_high] == -1:             # <<<<<<<<<<<<<<
@@ -51312,7 +53052,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
           }
           if (__pyx_t_9) {
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1548
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1544
  *                     if self.tight_phrases:
  *                         if f_links_low[f_back_high-1] == -1 or f_links_low[f_high] == -1:
  *                             gap_error = 1             # <<<<<<<<<<<<<<
@@ -51321,16 +53061,16 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
             __pyx_v_gap_error = 1;
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1549
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1545
  *                         if f_links_low[f_back_high-1] == -1 or f_links_low[f_high] == -1:
  *                             gap_error = 1
  *                             reason_for_failure = "Inside edges of following subphrase are not tight"             # <<<<<<<<<<<<<<
  *                 else:
  *                     if self.tight_phrases and f_links_low[f_high-1] == -1:
  */
-            __Pyx_INCREF(((PyObject *)__pyx_kp_s_130));
+            __Pyx_INCREF(((PyObject *)__pyx_kp_s_132));
             __Pyx_DECREF(__pyx_v_reason_for_failure);
-            __pyx_v_reason_for_failure = ((PyObject *)__pyx_kp_s_130);
+            __pyx_v_reason_for_failure = ((PyObject *)__pyx_kp_s_132);
             goto __pyx_L45;
           }
           __pyx_L45:;
@@ -51341,7 +53081,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
       }
       /*else*/ {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1551
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1547
  *                             reason_for_failure = "Inside edges of following subphrase are not tight"
  *                 else:
  *                     if self.tight_phrases and f_links_low[f_high-1] == -1:             # <<<<<<<<<<<<<<
@@ -51356,7 +53096,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
         }
         if (__pyx_t_7) {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1552
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1548
  *                 else:
  *                     if self.tight_phrases and f_links_low[f_high-1] == -1:
  *                         met_constraints = 0             # <<<<<<<<<<<<<<
@@ -51370,7 +53110,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
       }
       __pyx_L42:;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1554
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1550
  *                         met_constraints = 0
  * 
  *                 if gap_error == 0:             # <<<<<<<<<<<<<<
@@ -51380,7 +53120,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
       __pyx_t_7 = (__pyx_v_gap_error == 0);
       if (__pyx_t_7) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1555
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1551
  * 
  *                 if gap_error == 0:
  *                     e_word_count = e_high - e_low             # <<<<<<<<<<<<<<
@@ -51389,7 +53129,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
         __pyx_v_e_word_count = (__pyx_v_e_high - __pyx_v_e_low);
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1556
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1552
  *                 if gap_error == 0:
  *                     e_word_count = e_high - e_low
  *                     for i from 0 <= i < num_gaps: # check integrity of subphrases             # <<<<<<<<<<<<<<
@@ -51399,17 +53139,17 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
         __pyx_t_3 = __pyx_v_num_gaps;
         for (__pyx_v_i = 0; __pyx_v_i < __pyx_t_3; __pyx_v_i++) {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1557
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1553
  *                     e_word_count = e_high - e_low
  *                     for i from 0 <= i < num_gaps: # check integrity of subphrases
  *                         if self.find_fixpoint(f_gap_low[gap_start+i], f_gap_high[gap_start+i],             # <<<<<<<<<<<<<<
  *                                             f_links_low, f_links_high, e_links_low, e_links_high,
  *                                             -1, -1, e_gap_low+gap_start+i, e_gap_high+gap_start+i,
  */
-          __pyx_t_10 = PyInt_FromLong((__pyx_v_f_gap_high[(__pyx_v_gap_start + __pyx_v_i)])); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1557; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_10 = PyInt_FromLong((__pyx_v_f_gap_high[(__pyx_v_gap_start + __pyx_v_i)])); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1553; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_10);
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1562
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1558
  *                                             f_gap_low+gap_start+i, f_gap_high+gap_start+i,
  *                                             f_sent_len, e_sent_len,
  *                                             self.train_max_initial_size, self.train_max_initial_size,             # <<<<<<<<<<<<<<
@@ -51420,7 +53160,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
           __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
           if (__pyx_t_7) {
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1564
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1560
  *                                             self.train_max_initial_size, self.train_max_initial_size,
  *                                             0, 0, 0, 0, 0, 0, 0) == 0:
  *                             gap_error = 1             # <<<<<<<<<<<<<<
@@ -51429,18 +53169,18 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
             __pyx_v_gap_error = 1;
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1565
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1561
  *                                             0, 0, 0, 0, 0, 0, 0) == 0:
  *                             gap_error = 1
  *                             reason_for_failure = "Subphrase [%d, %d] failed integrity check" % (f_gap_low[gap_start+i], f_gap_high[gap_start+i])             # <<<<<<<<<<<<<<
  *                             break
  * 
  */
-            __pyx_t_10 = PyInt_FromLong((__pyx_v_f_gap_low[(__pyx_v_gap_start + __pyx_v_i)])); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1565; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_10 = PyInt_FromLong((__pyx_v_f_gap_low[(__pyx_v_gap_start + __pyx_v_i)])); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1561; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_10);
-            __pyx_t_1 = PyInt_FromLong((__pyx_v_f_gap_high[(__pyx_v_gap_start + __pyx_v_i)])); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1565; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_1 = PyInt_FromLong((__pyx_v_f_gap_high[(__pyx_v_gap_start + __pyx_v_i)])); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1561; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_1);
-            __pyx_t_2 = PyTuple_New(2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1565; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_2 = PyTuple_New(2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1561; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_2);
             PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_t_10);
             __Pyx_GIVEREF(__pyx_t_10);
@@ -51448,14 +53188,14 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
             __Pyx_GIVEREF(__pyx_t_1);
             __pyx_t_10 = 0;
             __pyx_t_1 = 0;
-            __pyx_t_1 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_131), ((PyObject *)__pyx_t_2)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1565; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_1 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_133), ((PyObject *)__pyx_t_2)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1561; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(((PyObject *)__pyx_t_1));
             __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
             __Pyx_DECREF(__pyx_v_reason_for_failure);
             __pyx_v_reason_for_failure = ((PyObject *)__pyx_t_1);
             __pyx_t_1 = 0;
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1566
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1562
  *                             gap_error = 1
  *                             reason_for_failure = "Subphrase [%d, %d] failed integrity check" % (f_gap_low[gap_start+i], f_gap_high[gap_start+i])
  *                             break             # <<<<<<<<<<<<<<
@@ -51472,7 +53212,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
       }
       __pyx_L47:;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1568
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1564
  *                             break
  * 
  *                 if gap_error == 0:             # <<<<<<<<<<<<<<
@@ -51482,7 +53222,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
       __pyx_t_7 = (__pyx_v_gap_error == 0);
       if (__pyx_t_7) {
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1569
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1565
  * 
  *                 if gap_error == 0:
  *                     i = 1             # <<<<<<<<<<<<<<
@@ -51491,21 +53231,21 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
         __pyx_v_i = 1;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1570
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1566
  *                 if gap_error == 0:
  *                     i = 1
  *                     self.findexes.reset()             # <<<<<<<<<<<<<<
  *                     if f_back_low < f_low:
  *                         fphr_arr._append(sym_setindex(self.category, i))
  */
-        __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_v_self->findexes), __pyx_n_s__reset); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1570; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_v_self->findexes), __pyx_n_s__reset); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1566; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_1);
-        __pyx_t_2 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1570; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_2 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1566; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_2);
         __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
         __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1571
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1567
  *                     i = 1
  *                     self.findexes.reset()
  *                     if f_back_low < f_low:             # <<<<<<<<<<<<<<
@@ -51515,7 +53255,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
         __pyx_t_7 = (__pyx_v_f_back_low < __pyx_v_f_low);
         if (__pyx_t_7) {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1572
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1568
  *                     self.findexes.reset()
  *                     if f_back_low < f_low:
  *                         fphr_arr._append(sym_setindex(self.category, i))             # <<<<<<<<<<<<<<
@@ -51524,7 +53264,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
           ((struct __pyx_vtabstruct_3_sa_IntList *)__pyx_v_fphr_arr->__pyx_vtab)->_append(__pyx_v_fphr_arr, __pyx_f_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i));
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1573
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1569
  *                     if f_back_low < f_low:
  *                         fphr_arr._append(sym_setindex(self.category, i))
  *                         i = i+1             # <<<<<<<<<<<<<<
@@ -51533,16 +53273,16 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
           __pyx_v_i = (__pyx_v_i + 1);
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1574
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1570
  *                         fphr_arr._append(sym_setindex(self.category, i))
  *                         i = i+1
  *                         self.findexes.append(sym_setindex(self.category, i))             # <<<<<<<<<<<<<<
  *                     self.findexes.extend(self.findexes1)
  *                     for j from 0 <= j < phrase.n:
  */
-          __pyx_t_2 = PyInt_FromLong(__pyx_f_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1574; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_2 = PyInt_FromLong(__pyx_f_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1570; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_2);
-          __pyx_t_1 = __Pyx_PyObject_Append(((PyObject *)__pyx_v_self->findexes), __pyx_t_2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1574; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_1 = __Pyx_PyObject_Append(((PyObject *)__pyx_v_self->findexes), __pyx_t_2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1570; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_1);
           __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
           __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
@@ -51550,27 +53290,27 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
         }
         __pyx_L52:;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1575
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1571
  *                         i = i+1
  *                         self.findexes.append(sym_setindex(self.category, i))
  *                     self.findexes.extend(self.findexes1)             # <<<<<<<<<<<<<<
  *                     for j from 0 <= j < phrase.n:
  *                         if sym_isvar(phrase.syms[j]):
  */
-        __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_v_self->findexes), __pyx_n_s__extend); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1575; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_v_self->findexes), __pyx_n_s__extend); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1571; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_1);
-        __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1575; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1571; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_2);
         __Pyx_INCREF(((PyObject *)__pyx_v_self->findexes1));
         PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_v_self->findexes1));
         __Pyx_GIVEREF(((PyObject *)__pyx_v_self->findexes1));
-        __pyx_t_10 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1575; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_10 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1571; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_10);
         __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
         __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
         __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1576
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1572
  *                         self.findexes.append(sym_setindex(self.category, i))
  *                     self.findexes.extend(self.findexes1)
  *                     for j from 0 <= j < phrase.n:             # <<<<<<<<<<<<<<
@@ -51580,7 +53320,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
         __pyx_t_3 = __pyx_v_phrase->n;
         for (__pyx_v_j = 0; __pyx_v_j < __pyx_t_3; __pyx_v_j++) {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1577
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1573
  *                     self.findexes.extend(self.findexes1)
  *                     for j from 0 <= j < phrase.n:
  *                         if sym_isvar(phrase.syms[j]):             # <<<<<<<<<<<<<<
@@ -51590,7 +53330,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
           __pyx_t_4 = __pyx_f_3_sa_sym_isvar((__pyx_v_phrase->syms[__pyx_v_j]));
           if (__pyx_t_4) {
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1578
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1574
  *                     for j from 0 <= j < phrase.n:
  *                         if sym_isvar(phrase.syms[j]):
  *                             fphr_arr._append(sym_setindex(self.category, i))             # <<<<<<<<<<<<<<
@@ -51599,7 +53339,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
             ((struct __pyx_vtabstruct_3_sa_IntList *)__pyx_v_fphr_arr->__pyx_vtab)->_append(__pyx_v_fphr_arr, __pyx_f_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i));
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1579
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1575
  *                         if sym_isvar(phrase.syms[j]):
  *                             fphr_arr._append(sym_setindex(self.category, i))
  *                             i = i + 1             # <<<<<<<<<<<<<<
@@ -51611,7 +53351,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
           }
           /*else*/ {
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1581
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1577
  *                             i = i + 1
  *                         else:
  *                             fphr_arr._append(phrase.syms[j])             # <<<<<<<<<<<<<<
@@ -51623,7 +53363,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
           __pyx_L55:;
         }
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1582
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1578
  *                         else:
  *                             fphr_arr._append(phrase.syms[j])
  *                     if f_back_high > f_high:             # <<<<<<<<<<<<<<
@@ -51633,7 +53373,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
         __pyx_t_7 = (__pyx_v_f_back_high > __pyx_v_f_high);
         if (__pyx_t_7) {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1583
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1579
  *                             fphr_arr._append(phrase.syms[j])
  *                     if f_back_high > f_high:
  *                         fphr_arr._append(sym_setindex(self.category, i))             # <<<<<<<<<<<<<<
@@ -51642,16 +53382,16 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
           ((struct __pyx_vtabstruct_3_sa_IntList *)__pyx_v_fphr_arr->__pyx_vtab)->_append(__pyx_v_fphr_arr, __pyx_f_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i));
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1584
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1580
  *                     if f_back_high > f_high:
  *                         fphr_arr._append(sym_setindex(self.category, i))
  *                         self.findexes.append(sym_setindex(self.category, i))             # <<<<<<<<<<<<<<
  * 
  *                     fphr = Phrase(fphr_arr)
  */
-          __pyx_t_10 = PyInt_FromLong(__pyx_f_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i)); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1584; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_10 = PyInt_FromLong(__pyx_f_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i)); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1580; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_10);
-          __pyx_t_2 = __Pyx_PyObject_Append(((PyObject *)__pyx_v_self->findexes), __pyx_t_10); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1584; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_2 = __Pyx_PyObject_Append(((PyObject *)__pyx_v_self->findexes), __pyx_t_10); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1580; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_2);
           __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
           __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
@@ -51659,25 +53399,25 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
         }
         __pyx_L56:;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1586
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1582
  *                         self.findexes.append(sym_setindex(self.category, i))
  * 
  *                     fphr = Phrase(fphr_arr)             # <<<<<<<<<<<<<<
  *                     if met_constraints:
  *                         phrase_list = self.extract_phrases(e_low, e_high, e_gap_low + gap_start, e_gap_high + gap_start, e_links_low, num_gaps,
  */
-        __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1586; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1582; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_2);
         __Pyx_INCREF(((PyObject *)__pyx_v_fphr_arr));
         PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_v_fphr_arr));
         __Pyx_GIVEREF(((PyObject *)__pyx_v_fphr_arr));
-        __pyx_t_10 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_Phrase)), ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1586; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_10 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_Phrase)), ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1582; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_10);
         __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
         __pyx_v_fphr = ((struct __pyx_obj_3_sa_Phrase *)__pyx_t_10);
         __pyx_t_10 = 0;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1587
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1583
  * 
  *                     fphr = Phrase(fphr_arr)
  *                     if met_constraints:             # <<<<<<<<<<<<<<
@@ -51686,47 +53426,47 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
         if (__pyx_v_met_constraints) {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1590
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1586
  *                         phrase_list = self.extract_phrases(e_low, e_high, e_gap_low + gap_start, e_gap_high + gap_start, e_links_low, num_gaps,
  *                                             f_back_low, f_back_high, f_gap_low + gap_start, f_gap_high + gap_start, f_links_low,
  *                                             matching.sent_id, e_sent_len, e_sent_start)             # <<<<<<<<<<<<<<
  *                         if len(phrase_list) > 0:
  *                             pair_count = 1.0 / len(phrase_list)
  */
-          __pyx_t_10 = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->extract_phrases(__pyx_v_self, __pyx_v_e_low, __pyx_v_e_high, (__pyx_v_e_gap_low + __pyx_v_gap_start), (__pyx_v_e_gap_high + __pyx_v_gap_start), __pyx_v_e_links_low, __pyx_v_num_gaps, __pyx_v_f_back_low, __pyx_v_f_back_high, (__pyx_v_f_gap_low + __pyx_v_gap_start), (__pyx_v_f_gap_high + __pyx_v_gap_start), __pyx_v_f_links_low, __pyx_v_matching->sent_id, __pyx_v_e_sent_len, __pyx_v_e_sent_start); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1588; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_10 = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->extract_phrases(__pyx_v_self, __pyx_v_e_low, __pyx_v_e_high, (__pyx_v_e_gap_low + __pyx_v_gap_start), (__pyx_v_e_gap_high + __pyx_v_gap_start), __pyx_v_e_links_low, __pyx_v_num_gaps, __pyx_v_f_back_low, __pyx_v_f_back_high, (__pyx_v_f_gap_low + __pyx_v_gap_start), (__pyx_v_f_gap_high + __pyx_v_gap_start), __pyx_v_f_links_low, __pyx_v_matching->sent_id, __pyx_v_e_sent_len, __pyx_v_e_sent_start); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1584; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_10);
           __pyx_v_phrase_list = __pyx_t_10;
           __pyx_t_10 = 0;
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1591
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1587
  *                                             f_back_low, f_back_high, f_gap_low + gap_start, f_gap_high + gap_start, f_links_low,
  *                                             matching.sent_id, e_sent_len, e_sent_start)
  *                         if len(phrase_list) > 0:             # <<<<<<<<<<<<<<
  *                             pair_count = 1.0 / len(phrase_list)
  *                         else:
  */
-          __pyx_t_13 = PyObject_Length(__pyx_v_phrase_list); if (unlikely(__pyx_t_13 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1591; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_13 = PyObject_Length(__pyx_v_phrase_list); if (unlikely(__pyx_t_13 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1587; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __pyx_t_7 = (__pyx_t_13 > 0);
           if (__pyx_t_7) {
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1592
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1588
  *                                             matching.sent_id, e_sent_len, e_sent_start)
  *                         if len(phrase_list) > 0:
  *                             pair_count = 1.0 / len(phrase_list)             # <<<<<<<<<<<<<<
  *                         else:
  *                             pair_count = 0
  */
-            __pyx_t_13 = PyObject_Length(__pyx_v_phrase_list); if (unlikely(__pyx_t_13 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1592; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_13 = PyObject_Length(__pyx_v_phrase_list); if (unlikely(__pyx_t_13 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1588; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             if (unlikely(__pyx_t_13 == 0)) {
               PyErr_Format(PyExc_ZeroDivisionError, "float division");
-              {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1592; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1588; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             }
             __pyx_v_pair_count = (1.0 / __pyx_t_13);
             goto __pyx_L58;
           }
           /*else*/ {
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1594
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1590
  *                             pair_count = 1.0 / len(phrase_list)
  *                         else:
  *                             pair_count = 0             # <<<<<<<<<<<<<<
@@ -51735,22 +53475,22 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
             __pyx_v_pair_count = 0.0;
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1595
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1591
  *                         else:
  *                             pair_count = 0
  *                             reason_for_failure = "Didn't extract anything from [%d, %d] -> [%d, %d]" % (f_back_low, f_back_high, e_low, e_high)             # <<<<<<<<<<<<<<
  *                         for (phrase2,eindexes) in phrase_list:
  *                             als1 = self.create_alignments(sent_links,num_links,self.findexes,eindexes)
  */
-            __pyx_t_10 = PyInt_FromLong(__pyx_v_f_back_low); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1595; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_10 = PyInt_FromLong(__pyx_v_f_back_low); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1591; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_10);
-            __pyx_t_2 = PyInt_FromLong(__pyx_v_f_back_high); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1595; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_2 = PyInt_FromLong(__pyx_v_f_back_high); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1591; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_2);
-            __pyx_t_1 = PyInt_FromLong(__pyx_v_e_low); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1595; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_1 = PyInt_FromLong(__pyx_v_e_low); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1591; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_1);
-            __pyx_t_14 = PyInt_FromLong(__pyx_v_e_high); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1595; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_14 = PyInt_FromLong(__pyx_v_e_high); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1591; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_14);
-            __pyx_t_15 = PyTuple_New(4); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1595; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_15 = PyTuple_New(4); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1591; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_15);
             PyTuple_SET_ITEM(__pyx_t_15, 0, __pyx_t_10);
             __Pyx_GIVEREF(__pyx_t_10);
@@ -51764,7 +53504,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
             __pyx_t_2 = 0;
             __pyx_t_1 = 0;
             __pyx_t_14 = 0;
-            __pyx_t_14 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_132), ((PyObject *)__pyx_t_15)); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1595; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_14 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_134), ((PyObject *)__pyx_t_15)); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1591; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(((PyObject *)__pyx_t_14));
             __Pyx_DECREF(((PyObject *)__pyx_t_15)); __pyx_t_15 = 0;
             __Pyx_DECREF(__pyx_v_reason_for_failure);
@@ -51773,7 +53513,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
           }
           __pyx_L58:;
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1596
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1592
  *                             pair_count = 0
  *                             reason_for_failure = "Didn't extract anything from [%d, %d] -> [%d, %d]" % (f_back_low, f_back_high, e_low, e_high)
  *                         for (phrase2,eindexes) in phrase_list:             # <<<<<<<<<<<<<<
@@ -51784,7 +53524,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
             __pyx_t_14 = __pyx_v_phrase_list; __Pyx_INCREF(__pyx_t_14); __pyx_t_13 = 0;
             __pyx_t_16 = NULL;
           } else {
-            __pyx_t_13 = -1; __pyx_t_14 = PyObject_GetIter(__pyx_v_phrase_list); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1596; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_13 = -1; __pyx_t_14 = PyObject_GetIter(__pyx_v_phrase_list); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1592; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_14);
             __pyx_t_16 = Py_TYPE(__pyx_t_14)->tp_iternext;
           }
@@ -51794,21 +53534,21 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
               #if CYTHON_COMPILING_IN_CPYTHON
               __pyx_t_15 = PyList_GET_ITEM(__pyx_t_14, __pyx_t_13); __Pyx_INCREF(__pyx_t_15); __pyx_t_13++;
               #else
-              __pyx_t_15 = PySequence_ITEM(__pyx_t_14, __pyx_t_13); __pyx_t_13++; if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1596; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+              __pyx_t_15 = PySequence_ITEM(__pyx_t_14, __pyx_t_13); __pyx_t_13++; if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1592; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
               #endif
             } else if (!__pyx_t_16 && PyTuple_CheckExact(__pyx_t_14)) {
               if (__pyx_t_13 >= PyTuple_GET_SIZE(__pyx_t_14)) break;
               #if CYTHON_COMPILING_IN_CPYTHON
               __pyx_t_15 = PyTuple_GET_ITEM(__pyx_t_14, __pyx_t_13); __Pyx_INCREF(__pyx_t_15); __pyx_t_13++;
               #else
-              __pyx_t_15 = PySequence_ITEM(__pyx_t_14, __pyx_t_13); __pyx_t_13++; if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1596; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+              __pyx_t_15 = PySequence_ITEM(__pyx_t_14, __pyx_t_13); __pyx_t_13++; if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1592; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
               #endif
             } else {
               __pyx_t_15 = __pyx_t_16(__pyx_t_14);
               if (unlikely(!__pyx_t_15)) {
                 if (PyErr_Occurred()) {
                   if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-                  else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1596; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1592; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 }
                 break;
               }
@@ -51824,7 +53564,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
               if (unlikely(size != 2)) {
                 if (size > 2) __Pyx_RaiseTooManyValuesError(2);
                 else if (size >= 0) __Pyx_RaiseNeedMoreValuesError(size);
-                {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1596; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1592; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               }
               #if CYTHON_COMPILING_IN_CPYTHON
               if (likely(PyTuple_CheckExact(sequence))) {
@@ -51837,14 +53577,14 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
               __Pyx_INCREF(__pyx_t_1);
               __Pyx_INCREF(__pyx_t_2);
               #else
-              __pyx_t_1 = PySequence_ITEM(sequence, 0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1596; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-              __pyx_t_2 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1596; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_1 = PySequence_ITEM(sequence, 0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1592; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_2 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1592; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               #endif
               __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
             } else
             {
               Py_ssize_t index = -1;
-              __pyx_t_10 = PyObject_GetIter(__pyx_t_15); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1596; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_10 = PyObject_GetIter(__pyx_t_15); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1592; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_10);
               __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
               __pyx_t_17 = Py_TYPE(__pyx_t_10)->tp_iternext;
@@ -51852,7 +53592,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
               __Pyx_GOTREF(__pyx_t_1);
               index = 1; __pyx_t_2 = __pyx_t_17(__pyx_t_10); if (unlikely(!__pyx_t_2)) goto __pyx_L61_unpacking_failed;
               __Pyx_GOTREF(__pyx_t_2);
-              if (__Pyx_IternextUnpackEndCheck(__pyx_t_17(__pyx_t_10), 2) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1596; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              if (__Pyx_IternextUnpackEndCheck(__pyx_t_17(__pyx_t_10), 2) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1592; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __pyx_t_17 = NULL;
               __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
               goto __pyx_L62_unpacking_done;
@@ -51860,7 +53600,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
               __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
               __pyx_t_17 = NULL;
               if (__Pyx_IterFinish() == 0) __Pyx_RaiseNeedMoreValuesError(index);
-              {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1596; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1592; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __pyx_L62_unpacking_done:;
             }
             __Pyx_XDECREF(__pyx_v_phrase2);
@@ -51870,7 +53610,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
             __pyx_v_eindexes = __pyx_t_2;
             __pyx_t_2 = 0;
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1597
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1593
  *                             reason_for_failure = "Didn't extract anything from [%d, %d] -> [%d, %d]" % (f_back_low, f_back_high, e_low, e_high)
  *                         for (phrase2,eindexes) in phrase_list:
  *                             als1 = self.create_alignments(sent_links,num_links,self.findexes,eindexes)             # <<<<<<<<<<<<<<
@@ -51879,31 +53619,31 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
             __pyx_t_15 = ((PyObject *)__pyx_v_self->findexes);
             __Pyx_INCREF(__pyx_t_15);
-            __pyx_t_2 = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->create_alignments(__pyx_v_self, __pyx_v_sent_links, __pyx_v_num_links, __pyx_t_15, __pyx_v_eindexes); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1597; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_2 = ((PyObject *)((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->create_alignments(__pyx_v_self, __pyx_v_sent_links, __pyx_v_num_links, __pyx_t_15, __pyx_v_eindexes)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1593; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_2);
             __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
-            __Pyx_XDECREF(__pyx_v_als1);
-            __pyx_v_als1 = __pyx_t_2;
+            __Pyx_XDECREF(((PyObject *)__pyx_v_als1));
+            __pyx_v_als1 = ((struct __pyx_obj_3_sa_IntList *)__pyx_t_2);
             __pyx_t_2 = 0;
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1598
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1594
  *                         for (phrase2,eindexes) in phrase_list:
  *                             als1 = self.create_alignments(sent_links,num_links,self.findexes,eindexes)
  *                             extracts.append((fphr, phrase2, pair_count, tuple(als1)))             # <<<<<<<<<<<<<<
  * 
  *                     if (num_gaps < self.max_nonterminals and
  */
-            __pyx_t_2 = PyFloat_FromDouble(__pyx_v_pair_count); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1598; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_2 = PyFloat_FromDouble(__pyx_v_pair_count); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1594; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_2);
-            __pyx_t_15 = PyTuple_New(1); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1598; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_15 = PyTuple_New(1); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1594; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_15);
-            __Pyx_INCREF(__pyx_v_als1);
-            PyTuple_SET_ITEM(__pyx_t_15, 0, __pyx_v_als1);
-            __Pyx_GIVEREF(__pyx_v_als1);
-            __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)(&PyTuple_Type))), ((PyObject *)__pyx_t_15), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1598; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __Pyx_INCREF(((PyObject *)__pyx_v_als1));
+            PyTuple_SET_ITEM(__pyx_t_15, 0, ((PyObject *)__pyx_v_als1));
+            __Pyx_GIVEREF(((PyObject *)__pyx_v_als1));
+            __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)(&PyTuple_Type))), ((PyObject *)__pyx_t_15), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1594; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_1);
             __Pyx_DECREF(((PyObject *)__pyx_t_15)); __pyx_t_15 = 0;
-            __pyx_t_15 = PyTuple_New(4); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1598; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_15 = PyTuple_New(4); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1594; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_15);
             __Pyx_INCREF(((PyObject *)__pyx_v_fphr));
             PyTuple_SET_ITEM(__pyx_t_15, 0, ((PyObject *)__pyx_v_fphr));
@@ -51917,7 +53657,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
             __Pyx_GIVEREF(__pyx_t_1);
             __pyx_t_2 = 0;
             __pyx_t_1 = 0;
-            __pyx_t_1 = __Pyx_PyObject_Append(__pyx_v_extracts, ((PyObject *)__pyx_t_15)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1598; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_1 = __Pyx_PyObject_Append(__pyx_v_extracts, ((PyObject *)__pyx_t_15)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1594; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_1);
             __Pyx_DECREF(((PyObject *)__pyx_t_15)); __pyx_t_15 = 0;
             __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
@@ -51927,7 +53667,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
         }
         __pyx_L57:;
 
-        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1600
+        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1596
  *                             extracts.append((fphr, phrase2, pair_count, tuple(als1)))
  * 
  *                     if (num_gaps < self.max_nonterminals and             # <<<<<<<<<<<<<<
@@ -51937,7 +53677,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
         __pyx_t_7 = (__pyx_v_num_gaps < __pyx_v_self->max_nonterminals);
         if (__pyx_t_7) {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1601
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1597
  * 
  *                     if (num_gaps < self.max_nonterminals and
  *                         phrase_len < self.max_length and             # <<<<<<<<<<<<<<
@@ -51947,7 +53687,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
           __pyx_t_9 = (__pyx_v_phrase_len < __pyx_v_self->max_length);
           if (__pyx_t_9) {
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1602
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1598
  *                     if (num_gaps < self.max_nonterminals and
  *                         phrase_len < self.max_length and
  *                         f_back_high - f_back_low + self.train_min_gap_size <= self.train_max_initial_size):             # <<<<<<<<<<<<<<
@@ -51965,7 +53705,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
         }
         if (__pyx_t_9) {
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1603
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1599
  *                         phrase_len < self.max_length and
  *                         f_back_high - f_back_low + self.train_min_gap_size <= self.train_max_initial_size):
  *                         if (f_back_low == f_low and             # <<<<<<<<<<<<<<
@@ -51975,7 +53715,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
           __pyx_t_9 = (__pyx_v_f_back_low == __pyx_v_f_low);
           if (__pyx_t_9) {
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1604
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1600
  *                         f_back_high - f_back_low + self.train_min_gap_size <= self.train_max_initial_size):
  *                         if (f_back_low == f_low and
  *                                 f_low >= self.train_min_gap_size and             # <<<<<<<<<<<<<<
@@ -51985,7 +53725,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
             __pyx_t_7 = (__pyx_v_f_low >= __pyx_v_self->train_min_gap_size);
             if (__pyx_t_7) {
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1605
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1601
  *                         if (f_back_low == f_low and
  *                                 f_low >= self.train_min_gap_size and
  *                                 ((not self.tight_phrases) or (f_links_low[f_low-1] != -1 and f_links_low[f_back_high-1] != -1))):             # <<<<<<<<<<<<<<
@@ -52015,7 +53755,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
           }
           if (__pyx_t_7) {
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1606
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1602
  *                                 f_low >= self.train_min_gap_size and
  *                                 ((not self.tight_phrases) or (f_links_low[f_low-1] != -1 and f_links_low[f_back_high-1] != -1))):
  *                             f_x_low = f_low-self.train_min_gap_size             # <<<<<<<<<<<<<<
@@ -52024,7 +53764,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
             __pyx_v_f_x_low = (__pyx_v_f_low - __pyx_v_self->train_min_gap_size);
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1607
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1603
  *                                 ((not self.tight_phrases) or (f_links_low[f_low-1] != -1 and f_links_low[f_back_high-1] != -1))):
  *                             f_x_low = f_low-self.train_min_gap_size
  *                             met_constraints = 1             # <<<<<<<<<<<<<<
@@ -52033,7 +53773,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
             __pyx_v_met_constraints = 1;
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1608
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1604
  *                             f_x_low = f_low-self.train_min_gap_size
  *                             met_constraints = 1
  *                             if self.tight_phrases:             # <<<<<<<<<<<<<<
@@ -52042,7 +53782,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
             if (__pyx_v_self->tight_phrases) {
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1609
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1605
  *                             met_constraints = 1
  *                             if self.tight_phrases:
  *                                 while f_x_low >= 0 and f_links_low[f_x_low] == -1:             # <<<<<<<<<<<<<<
@@ -52059,7 +53799,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                 }
                 if (!__pyx_t_18) break;
 
-                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1610
+                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1606
  *                             if self.tight_phrases:
  *                                 while f_x_low >= 0 and f_links_low[f_x_low] == -1:
  *                                     f_x_low = f_x_low - 1             # <<<<<<<<<<<<<<
@@ -52072,7 +53812,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
             }
             __pyx_L65:;
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1611
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1607
  *                                 while f_x_low >= 0 and f_links_low[f_x_low] == -1:
  *                                     f_x_low = f_x_low - 1
  *                             if f_x_low < 0 or f_back_high - f_x_low > self.train_max_initial_size:             # <<<<<<<<<<<<<<
@@ -52088,7 +53828,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
             }
             if (__pyx_t_9) {
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1612
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1608
  *                                     f_x_low = f_x_low - 1
  *                             if f_x_low < 0 or f_back_high - f_x_low > self.train_max_initial_size:
  *                                 met_constraints = 0             # <<<<<<<<<<<<<<
@@ -52100,7 +53840,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
             }
             __pyx_L68:;
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1614
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1610
  *                                 met_constraints = 0
  * 
  *                             if (met_constraints and             # <<<<<<<<<<<<<<
@@ -52109,17 +53849,17 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
             if (__pyx_v_met_constraints) {
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1615
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1611
  * 
  *                             if (met_constraints and
  *                                 self.find_fixpoint(f_x_low, f_back_high,             # <<<<<<<<<<<<<<
  *                                             f_links_low, f_links_high, e_links_low, e_links_high,
  *                                             e_low, e_high, &e_x_low, &e_x_high, &f_x_low, &f_x_high,
  */
-              __pyx_t_14 = PyInt_FromLong(__pyx_v_f_back_high); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1615; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_14 = PyInt_FromLong(__pyx_v_f_back_high); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1611; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_14);
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1619
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1615
  *                                             e_low, e_high, &e_x_low, &e_x_high, &f_x_low, &f_x_high,
  *                                             f_sent_len, e_sent_len,
  *                                             self.train_max_initial_size, self.train_max_initial_size,             # <<<<<<<<<<<<<<
@@ -52129,7 +53869,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
               if (((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->find_fixpoint(__pyx_v_self, __pyx_v_f_x_low, __pyx_t_14, __pyx_v_f_links_low, __pyx_v_f_links_high, __pyx_v_e_links_low, __pyx_v_e_links_high, __pyx_v_e_low, __pyx_v_e_high, (&__pyx_v_e_x_low), (&__pyx_v_e_x_high), (&__pyx_v_f_x_low), (&__pyx_v_f_x_high), __pyx_v_f_sent_len, __pyx_v_e_sent_len, __pyx_v_self->train_max_initial_size, __pyx_v_self->train_max_initial_size, 1, 1, 1, 1, 0, 1, 0)) {
                 __Pyx_DECREF(__pyx_t_14); __pyx_t_14 = 0;
 
-                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1621
+                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1617
  *                                             self.train_max_initial_size, self.train_max_initial_size,
  *                                             1, 1, 1, 1, 0, 1, 0) and
  *                                 ((not self.tight_phrases) or f_links_low[f_x_low] != -1) and             # <<<<<<<<<<<<<<
@@ -52145,17 +53885,17 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                 }
                 if (__pyx_t_7) {
 
-                  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1622
+                  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1618
  *                                             1, 1, 1, 1, 0, 1, 0) and
  *                                 ((not self.tight_phrases) or f_links_low[f_x_low] != -1) and
  *                                 self.find_fixpoint(f_x_low, f_low,    # check integrity of new subphrase             # <<<<<<<<<<<<<<
  *                                             f_links_low, f_links_high, e_links_low, e_links_high,
  *                                             -1, -1, e_gap_low, e_gap_high, f_gap_low, f_gap_high,
  */
-                  __pyx_t_1 = PyInt_FromLong(__pyx_v_f_low); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1622; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  __pyx_t_1 = PyInt_FromLong(__pyx_v_f_low); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1618; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   __Pyx_GOTREF(__pyx_t_1);
 
-                  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1626
+                  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1622
  *                                             -1, -1, e_gap_low, e_gap_high, f_gap_low, f_gap_high,
  *                                             f_sent_len, e_sent_len,
  *                                             self.train_max_initial_size, self.train_max_initial_size,             # <<<<<<<<<<<<<<
@@ -52178,7 +53918,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
             }
             if (__pyx_t_9) {
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1628
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1624
  *                                             self.train_max_initial_size, self.train_max_initial_size,
  *                                             0, 0, 0, 0, 0, 0, 0)):
  *                                 fphr_arr._clear()             # <<<<<<<<<<<<<<
@@ -52187,7 +53927,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
               ((struct __pyx_vtabstruct_3_sa_IntList *)__pyx_v_fphr_arr->__pyx_vtab)->_clear(__pyx_v_fphr_arr);
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1629
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1625
  *                                             0, 0, 0, 0, 0, 0, 0)):
  *                                 fphr_arr._clear()
  *                                 i = 1             # <<<<<<<<<<<<<<
@@ -52196,35 +53936,35 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
               __pyx_v_i = 1;
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1630
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1626
  *                                 fphr_arr._clear()
  *                                 i = 1
  *                                 self.findexes.reset()             # <<<<<<<<<<<<<<
  *                                 self.findexes.append(sym_setindex(self.category, i))
  *                                 fphr_arr._append(sym_setindex(self.category, i))
  */
-              __pyx_t_14 = PyObject_GetAttr(((PyObject *)__pyx_v_self->findexes), __pyx_n_s__reset); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1630; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_14 = PyObject_GetAttr(((PyObject *)__pyx_v_self->findexes), __pyx_n_s__reset); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1626; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_14);
-              __pyx_t_1 = PyObject_Call(__pyx_t_14, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1630; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_1 = PyObject_Call(__pyx_t_14, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1626; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_1);
               __Pyx_DECREF(__pyx_t_14); __pyx_t_14 = 0;
               __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1631
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1627
  *                                 i = 1
  *                                 self.findexes.reset()
  *                                 self.findexes.append(sym_setindex(self.category, i))             # <<<<<<<<<<<<<<
  *                                 fphr_arr._append(sym_setindex(self.category, i))
  *                                 i = i+1
  */
-              __pyx_t_1 = PyInt_FromLong(__pyx_f_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1631; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_1 = PyInt_FromLong(__pyx_f_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1627; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_1);
-              __pyx_t_14 = __Pyx_PyObject_Append(((PyObject *)__pyx_v_self->findexes), __pyx_t_1); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1631; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_14 = __Pyx_PyObject_Append(((PyObject *)__pyx_v_self->findexes), __pyx_t_1); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1627; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_14);
               __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
               __Pyx_DECREF(__pyx_t_14); __pyx_t_14 = 0;
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1632
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1628
  *                                 self.findexes.reset()
  *                                 self.findexes.append(sym_setindex(self.category, i))
  *                                 fphr_arr._append(sym_setindex(self.category, i))             # <<<<<<<<<<<<<<
@@ -52233,7 +53973,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
               ((struct __pyx_vtabstruct_3_sa_IntList *)__pyx_v_fphr_arr->__pyx_vtab)->_append(__pyx_v_fphr_arr, __pyx_f_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i));
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1633
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1629
  *                                 self.findexes.append(sym_setindex(self.category, i))
  *                                 fphr_arr._append(sym_setindex(self.category, i))
  *                                 i = i+1             # <<<<<<<<<<<<<<
@@ -52242,27 +53982,27 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
               __pyx_v_i = (__pyx_v_i + 1);
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1634
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1630
  *                                 fphr_arr._append(sym_setindex(self.category, i))
  *                                 i = i+1
  *                                 self.findexes.extend(self.findexes1)             # <<<<<<<<<<<<<<
  *                                 for j from 0 <= j < phrase.n:
  *                                     if sym_isvar(phrase.syms[j]):
  */
-              __pyx_t_14 = PyObject_GetAttr(((PyObject *)__pyx_v_self->findexes), __pyx_n_s__extend); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1634; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_14 = PyObject_GetAttr(((PyObject *)__pyx_v_self->findexes), __pyx_n_s__extend); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1630; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_14);
-              __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1634; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1630; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_1);
               __Pyx_INCREF(((PyObject *)__pyx_v_self->findexes1));
               PyTuple_SET_ITEM(__pyx_t_1, 0, ((PyObject *)__pyx_v_self->findexes1));
               __Pyx_GIVEREF(((PyObject *)__pyx_v_self->findexes1));
-              __pyx_t_15 = PyObject_Call(__pyx_t_14, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1634; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_15 = PyObject_Call(__pyx_t_14, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1630; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_15);
               __Pyx_DECREF(__pyx_t_14); __pyx_t_14 = 0;
               __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
               __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1635
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1631
  *                                 i = i+1
  *                                 self.findexes.extend(self.findexes1)
  *                                 for j from 0 <= j < phrase.n:             # <<<<<<<<<<<<<<
@@ -52272,7 +54012,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
               __pyx_t_3 = __pyx_v_phrase->n;
               for (__pyx_v_j = 0; __pyx_v_j < __pyx_t_3; __pyx_v_j++) {
 
-                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1636
+                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1632
  *                                 self.findexes.extend(self.findexes1)
  *                                 for j from 0 <= j < phrase.n:
  *                                     if sym_isvar(phrase.syms[j]):             # <<<<<<<<<<<<<<
@@ -52282,7 +54022,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                 __pyx_t_4 = __pyx_f_3_sa_sym_isvar((__pyx_v_phrase->syms[__pyx_v_j]));
                 if (__pyx_t_4) {
 
-                  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1637
+                  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1633
  *                                 for j from 0 <= j < phrase.n:
  *                                     if sym_isvar(phrase.syms[j]):
  *                                         fphr_arr._append(sym_setindex(self.category, i))             # <<<<<<<<<<<<<<
@@ -52291,7 +54031,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
                   ((struct __pyx_vtabstruct_3_sa_IntList *)__pyx_v_fphr_arr->__pyx_vtab)->_append(__pyx_v_fphr_arr, __pyx_f_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i));
 
-                  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1638
+                  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1634
  *                                     if sym_isvar(phrase.syms[j]):
  *                                         fphr_arr._append(sym_setindex(self.category, i))
  *                                         i = i + 1             # <<<<<<<<<<<<<<
@@ -52303,7 +54043,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                 }
                 /*else*/ {
 
-                  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1640
+                  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1636
  *                                         i = i + 1
  *                                     else:
  *                                         fphr_arr._append(phrase.syms[j])             # <<<<<<<<<<<<<<
@@ -52315,7 +54055,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                 __pyx_L72:;
               }
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1641
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1637
  *                                     else:
  *                                         fphr_arr._append(phrase.syms[j])
  *                                 if f_back_high > f_high:             # <<<<<<<<<<<<<<
@@ -52325,7 +54065,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
               __pyx_t_9 = (__pyx_v_f_back_high > __pyx_v_f_high);
               if (__pyx_t_9) {
 
-                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1642
+                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1638
  *                                         fphr_arr._append(phrase.syms[j])
  *                                 if f_back_high > f_high:
  *                                     fphr_arr._append(sym_setindex(self.category, i))             # <<<<<<<<<<<<<<
@@ -52334,16 +54074,16 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
                 ((struct __pyx_vtabstruct_3_sa_IntList *)__pyx_v_fphr_arr->__pyx_vtab)->_append(__pyx_v_fphr_arr, __pyx_f_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i));
 
-                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1643
+                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1639
  *                                 if f_back_high > f_high:
  *                                     fphr_arr._append(sym_setindex(self.category, i))
  *                                     self.findexes.append(sym_setindex(self.category, i))             # <<<<<<<<<<<<<<
  *                                 fphr = Phrase(fphr_arr)
  *                                 phrase_list = self.extract_phrases(e_x_low, e_x_high, e_gap_low, e_gap_high, e_links_low, num_gaps+1,
  */
-                __pyx_t_15 = PyInt_FromLong(__pyx_f_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i)); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1643; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_15 = PyInt_FromLong(__pyx_f_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i)); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1639; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_15);
-                __pyx_t_1 = __Pyx_PyObject_Append(((PyObject *)__pyx_v_self->findexes), __pyx_t_15); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1643; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_1 = __Pyx_PyObject_Append(((PyObject *)__pyx_v_self->findexes), __pyx_t_15); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1639; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_1);
                 __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
                 __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
@@ -52351,67 +54091,67 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
               }
               __pyx_L73:;
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1644
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1640
  *                                     fphr_arr._append(sym_setindex(self.category, i))
  *                                     self.findexes.append(sym_setindex(self.category, i))
  *                                 fphr = Phrase(fphr_arr)             # <<<<<<<<<<<<<<
  *                                 phrase_list = self.extract_phrases(e_x_low, e_x_high, e_gap_low, e_gap_high, e_links_low, num_gaps+1,
  *                                                     f_x_low, f_x_high, f_gap_low, f_gap_high, f_links_low, matching.sent_id,
  */
-              __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1644; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1640; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_1);
               __Pyx_INCREF(((PyObject *)__pyx_v_fphr_arr));
               PyTuple_SET_ITEM(__pyx_t_1, 0, ((PyObject *)__pyx_v_fphr_arr));
               __Pyx_GIVEREF(((PyObject *)__pyx_v_fphr_arr));
-              __pyx_t_15 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_Phrase)), ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1644; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_15 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_Phrase)), ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1640; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_15);
               __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
               __Pyx_DECREF(((PyObject *)__pyx_v_fphr));
               __pyx_v_fphr = ((struct __pyx_obj_3_sa_Phrase *)__pyx_t_15);
               __pyx_t_15 = 0;
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1647
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1643
  *                                 phrase_list = self.extract_phrases(e_x_low, e_x_high, e_gap_low, e_gap_high, e_links_low, num_gaps+1,
  *                                                     f_x_low, f_x_high, f_gap_low, f_gap_high, f_links_low, matching.sent_id,
  *                                                     e_sent_len, e_sent_start)             # <<<<<<<<<<<<<<
  *                                 if len(phrase_list) > 0:
  *                                     pair_count = 1.0 / len(phrase_list)
  */
-              __pyx_t_15 = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->extract_phrases(__pyx_v_self, __pyx_v_e_x_low, __pyx_v_e_x_high, __pyx_v_e_gap_low, __pyx_v_e_gap_high, __pyx_v_e_links_low, (__pyx_v_num_gaps + 1), __pyx_v_f_x_low, __pyx_v_f_x_high, __pyx_v_f_gap_low, __pyx_v_f_gap_high, __pyx_v_f_links_low, __pyx_v_matching->sent_id, __pyx_v_e_sent_len, __pyx_v_e_sent_start); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1645; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_15 = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->extract_phrases(__pyx_v_self, __pyx_v_e_x_low, __pyx_v_e_x_high, __pyx_v_e_gap_low, __pyx_v_e_gap_high, __pyx_v_e_links_low, (__pyx_v_num_gaps + 1), __pyx_v_f_x_low, __pyx_v_f_x_high, __pyx_v_f_gap_low, __pyx_v_f_gap_high, __pyx_v_f_links_low, __pyx_v_matching->sent_id, __pyx_v_e_sent_len, __pyx_v_e_sent_start); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1641; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_15);
               __Pyx_XDECREF(__pyx_v_phrase_list);
               __pyx_v_phrase_list = __pyx_t_15;
               __pyx_t_15 = 0;
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1648
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1644
  *                                                     f_x_low, f_x_high, f_gap_low, f_gap_high, f_links_low, matching.sent_id,
  *                                                     e_sent_len, e_sent_start)
  *                                 if len(phrase_list) > 0:             # <<<<<<<<<<<<<<
  *                                     pair_count = 1.0 / len(phrase_list)
  *                                 else:
  */
-              __pyx_t_13 = PyObject_Length(__pyx_v_phrase_list); if (unlikely(__pyx_t_13 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1648; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_13 = PyObject_Length(__pyx_v_phrase_list); if (unlikely(__pyx_t_13 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1644; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __pyx_t_9 = (__pyx_t_13 > 0);
               if (__pyx_t_9) {
 
-                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1649
+                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1645
  *                                                     e_sent_len, e_sent_start)
  *                                 if len(phrase_list) > 0:
  *                                     pair_count = 1.0 / len(phrase_list)             # <<<<<<<<<<<<<<
  *                                 else:
  *                                     pair_count = 0
  */
-                __pyx_t_13 = PyObject_Length(__pyx_v_phrase_list); if (unlikely(__pyx_t_13 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1649; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_13 = PyObject_Length(__pyx_v_phrase_list); if (unlikely(__pyx_t_13 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1645; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 if (unlikely(__pyx_t_13 == 0)) {
                   PyErr_Format(PyExc_ZeroDivisionError, "float division");
-                  {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1649; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1645; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 }
                 __pyx_v_pair_count = (1.0 / __pyx_t_13);
                 goto __pyx_L74;
               }
               /*else*/ {
 
-                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1651
+                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1647
  *                                     pair_count = 1.0 / len(phrase_list)
  *                                 else:
  *                                     pair_count = 0             # <<<<<<<<<<<<<<
@@ -52422,7 +54162,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
               }
               __pyx_L74:;
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1652
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1648
  *                                 else:
  *                                     pair_count = 0
  *                                 for phrase2,eindexes in phrase_list:             # <<<<<<<<<<<<<<
@@ -52433,7 +54173,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                 __pyx_t_15 = __pyx_v_phrase_list; __Pyx_INCREF(__pyx_t_15); __pyx_t_13 = 0;
                 __pyx_t_16 = NULL;
               } else {
-                __pyx_t_13 = -1; __pyx_t_15 = PyObject_GetIter(__pyx_v_phrase_list); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1652; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_13 = -1; __pyx_t_15 = PyObject_GetIter(__pyx_v_phrase_list); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1648; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_15);
                 __pyx_t_16 = Py_TYPE(__pyx_t_15)->tp_iternext;
               }
@@ -52443,21 +54183,21 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                   #if CYTHON_COMPILING_IN_CPYTHON
                   __pyx_t_1 = PyList_GET_ITEM(__pyx_t_15, __pyx_t_13); __Pyx_INCREF(__pyx_t_1); __pyx_t_13++;
                   #else
-                  __pyx_t_1 = PySequence_ITEM(__pyx_t_15, __pyx_t_13); __pyx_t_13++; if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1652; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+                  __pyx_t_1 = PySequence_ITEM(__pyx_t_15, __pyx_t_13); __pyx_t_13++; if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1648; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
                   #endif
                 } else if (!__pyx_t_16 && PyTuple_CheckExact(__pyx_t_15)) {
                   if (__pyx_t_13 >= PyTuple_GET_SIZE(__pyx_t_15)) break;
                   #if CYTHON_COMPILING_IN_CPYTHON
                   __pyx_t_1 = PyTuple_GET_ITEM(__pyx_t_15, __pyx_t_13); __Pyx_INCREF(__pyx_t_1); __pyx_t_13++;
                   #else
-                  __pyx_t_1 = PySequence_ITEM(__pyx_t_15, __pyx_t_13); __pyx_t_13++; if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1652; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+                  __pyx_t_1 = PySequence_ITEM(__pyx_t_15, __pyx_t_13); __pyx_t_13++; if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1648; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
                   #endif
                 } else {
                   __pyx_t_1 = __pyx_t_16(__pyx_t_15);
                   if (unlikely(!__pyx_t_1)) {
                     if (PyErr_Occurred()) {
                       if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-                      else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1652; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                      else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1648; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                     }
                     break;
                   }
@@ -52473,7 +54213,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                   if (unlikely(size != 2)) {
                     if (size > 2) __Pyx_RaiseTooManyValuesError(2);
                     else if (size >= 0) __Pyx_RaiseNeedMoreValuesError(size);
-                    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1652; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1648; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   }
                   #if CYTHON_COMPILING_IN_CPYTHON
                   if (likely(PyTuple_CheckExact(sequence))) {
@@ -52486,14 +54226,14 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                   __Pyx_INCREF(__pyx_t_14);
                   __Pyx_INCREF(__pyx_t_2);
                   #else
-                  __pyx_t_14 = PySequence_ITEM(sequence, 0); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1652; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-                  __pyx_t_2 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1652; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  __pyx_t_14 = PySequence_ITEM(sequence, 0); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1648; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  __pyx_t_2 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1648; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   #endif
                   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
                 } else
                 {
                   Py_ssize_t index = -1;
-                  __pyx_t_10 = PyObject_GetIter(__pyx_t_1); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1652; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  __pyx_t_10 = PyObject_GetIter(__pyx_t_1); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1648; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   __Pyx_GOTREF(__pyx_t_10);
                   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
                   __pyx_t_17 = Py_TYPE(__pyx_t_10)->tp_iternext;
@@ -52501,7 +54241,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                   __Pyx_GOTREF(__pyx_t_14);
                   index = 1; __pyx_t_2 = __pyx_t_17(__pyx_t_10); if (unlikely(!__pyx_t_2)) goto __pyx_L77_unpacking_failed;
                   __Pyx_GOTREF(__pyx_t_2);
-                  if (__Pyx_IternextUnpackEndCheck(__pyx_t_17(__pyx_t_10), 2) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1652; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  if (__Pyx_IternextUnpackEndCheck(__pyx_t_17(__pyx_t_10), 2) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1648; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   __pyx_t_17 = NULL;
                   __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
                   goto __pyx_L78_unpacking_done;
@@ -52509,7 +54249,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                   __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
                   __pyx_t_17 = NULL;
                   if (__Pyx_IterFinish() == 0) __Pyx_RaiseNeedMoreValuesError(index);
-                  {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1652; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1648; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   __pyx_L78_unpacking_done:;
                 }
                 __Pyx_XDECREF(__pyx_v_phrase2);
@@ -52519,7 +54259,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                 __pyx_v_eindexes = __pyx_t_2;
                 __pyx_t_2 = 0;
 
-                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1653
+                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1649
  *                                     pair_count = 0
  *                                 for phrase2,eindexes in phrase_list:
  *                                     als2 = self.create_alignments(sent_links,num_links,self.findexes,eindexes)             # <<<<<<<<<<<<<<
@@ -52528,31 +54268,31 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
                 __pyx_t_1 = ((PyObject *)__pyx_v_self->findexes);
                 __Pyx_INCREF(__pyx_t_1);
-                __pyx_t_2 = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->create_alignments(__pyx_v_self, __pyx_v_sent_links, __pyx_v_num_links, __pyx_t_1, __pyx_v_eindexes); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1653; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_2 = ((PyObject *)((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->create_alignments(__pyx_v_self, __pyx_v_sent_links, __pyx_v_num_links, __pyx_t_1, __pyx_v_eindexes)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1649; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_2);
                 __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-                __Pyx_XDECREF(__pyx_v_als2);
-                __pyx_v_als2 = __pyx_t_2;
+                __Pyx_XDECREF(((PyObject *)__pyx_v_als2));
+                __pyx_v_als2 = ((struct __pyx_obj_3_sa_IntList *)__pyx_t_2);
                 __pyx_t_2 = 0;
 
-                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1654
+                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1650
  *                                 for phrase2,eindexes in phrase_list:
  *                                     als2 = self.create_alignments(sent_links,num_links,self.findexes,eindexes)
  *                                     extracts.append((fphr, phrase2, pair_count, tuple(als2)))             # <<<<<<<<<<<<<<
  * 
  *                         if (f_back_high == f_high and
  */
-                __pyx_t_2 = PyFloat_FromDouble(__pyx_v_pair_count); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1654; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_2 = PyFloat_FromDouble(__pyx_v_pair_count); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1650; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_2);
-                __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1654; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1650; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_1);
-                __Pyx_INCREF(__pyx_v_als2);
-                PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_v_als2);
-                __Pyx_GIVEREF(__pyx_v_als2);
-                __pyx_t_14 = PyObject_Call(((PyObject *)((PyObject*)(&PyTuple_Type))), ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1654; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __Pyx_INCREF(((PyObject *)__pyx_v_als2));
+                PyTuple_SET_ITEM(__pyx_t_1, 0, ((PyObject *)__pyx_v_als2));
+                __Pyx_GIVEREF(((PyObject *)__pyx_v_als2));
+                __pyx_t_14 = PyObject_Call(((PyObject *)((PyObject*)(&PyTuple_Type))), ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1650; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_14);
                 __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
-                __pyx_t_1 = PyTuple_New(4); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1654; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_1 = PyTuple_New(4); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1650; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_1);
                 __Pyx_INCREF(((PyObject *)__pyx_v_fphr));
                 PyTuple_SET_ITEM(__pyx_t_1, 0, ((PyObject *)__pyx_v_fphr));
@@ -52566,7 +54306,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                 __Pyx_GIVEREF(__pyx_t_14);
                 __pyx_t_2 = 0;
                 __pyx_t_14 = 0;
-                __pyx_t_14 = __Pyx_PyObject_Append(__pyx_v_extracts, ((PyObject *)__pyx_t_1)); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1654; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_14 = __Pyx_PyObject_Append(__pyx_v_extracts, ((PyObject *)__pyx_t_1)); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1650; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_14);
                 __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
                 __Pyx_DECREF(__pyx_t_14); __pyx_t_14 = 0;
@@ -52579,7 +54319,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
           }
           __pyx_L64:;
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1656
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1652
  *                                     extracts.append((fphr, phrase2, pair_count, tuple(als2)))
  * 
  *                         if (f_back_high == f_high and             # <<<<<<<<<<<<<<
@@ -52589,7 +54329,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
           __pyx_t_9 = (__pyx_v_f_back_high == __pyx_v_f_high);
           if (__pyx_t_9) {
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1657
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1653
  * 
  *                         if (f_back_high == f_high and
  *                             f_sent_len - f_high >= self.train_min_gap_size and             # <<<<<<<<<<<<<<
@@ -52599,7 +54339,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
             __pyx_t_7 = ((__pyx_v_f_sent_len - __pyx_v_f_high) >= __pyx_v_self->train_min_gap_size);
             if (__pyx_t_7) {
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1658
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1654
  *                         if (f_back_high == f_high and
  *                             f_sent_len - f_high >= self.train_min_gap_size and
  *                             ((not self.tight_phrases) or (f_links_low[f_high] != -1 and f_links_low[f_back_low] != -1))):             # <<<<<<<<<<<<<<
@@ -52629,7 +54369,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
           }
           if (__pyx_t_7) {
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1659
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1655
  *                             f_sent_len - f_high >= self.train_min_gap_size and
  *                             ((not self.tight_phrases) or (f_links_low[f_high] != -1 and f_links_low[f_back_low] != -1))):
  *                             f_x_high = f_high+self.train_min_gap_size             # <<<<<<<<<<<<<<
@@ -52638,7 +54378,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
             __pyx_v_f_x_high = (__pyx_v_f_high + __pyx_v_self->train_min_gap_size);
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1660
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1656
  *                             ((not self.tight_phrases) or (f_links_low[f_high] != -1 and f_links_low[f_back_low] != -1))):
  *                             f_x_high = f_high+self.train_min_gap_size
  *                             met_constraints = 1             # <<<<<<<<<<<<<<
@@ -52647,7 +54387,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
             __pyx_v_met_constraints = 1;
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1661
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1657
  *                             f_x_high = f_high+self.train_min_gap_size
  *                             met_constraints = 1
  *                             if self.tight_phrases:             # <<<<<<<<<<<<<<
@@ -52656,7 +54396,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
             if (__pyx_v_self->tight_phrases) {
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1662
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1658
  *                             met_constraints = 1
  *                             if self.tight_phrases:
  *                                 while f_x_high <= f_sent_len and f_links_low[f_x_high-1] == -1:             # <<<<<<<<<<<<<<
@@ -52673,7 +54413,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                 }
                 if (!__pyx_t_18) break;
 
-                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1663
+                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1659
  *                             if self.tight_phrases:
  *                                 while f_x_high <= f_sent_len and f_links_low[f_x_high-1] == -1:
  *                                     f_x_high = f_x_high + 1             # <<<<<<<<<<<<<<
@@ -52686,7 +54426,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
             }
             __pyx_L80:;
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1664
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1660
  *                                 while f_x_high <= f_sent_len and f_links_low[f_x_high-1] == -1:
  *                                     f_x_high = f_x_high + 1
  *                             if f_x_high > f_sent_len or f_x_high - f_back_low > self.train_max_initial_size:             # <<<<<<<<<<<<<<
@@ -52702,7 +54442,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
             }
             if (__pyx_t_9) {
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1665
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1661
  *                                     f_x_high = f_x_high + 1
  *                             if f_x_high > f_sent_len or f_x_high - f_back_low > self.train_max_initial_size:
  *                                 met_constraints = 0             # <<<<<<<<<<<<<<
@@ -52714,7 +54454,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
             }
             __pyx_L83:;
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1667
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1663
  *                                 met_constraints = 0
  * 
  *                             if (met_constraints and             # <<<<<<<<<<<<<<
@@ -52723,17 +54463,17 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
             if (__pyx_v_met_constraints) {
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1668
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1664
  * 
  *                             if (met_constraints and
  *                                 self.find_fixpoint(f_back_low, f_x_high,             # <<<<<<<<<<<<<<
  *                                             f_links_low, f_links_high, e_links_low, e_links_high,
  *                                             e_low, e_high, &e_x_low, &e_x_high, &f_x_low, &f_x_high,
  */
-              __pyx_t_15 = PyInt_FromLong(__pyx_v_f_x_high); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1668; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_15 = PyInt_FromLong(__pyx_v_f_x_high); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1664; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_15);
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1672
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1668
  *                                             e_low, e_high, &e_x_low, &e_x_high, &f_x_low, &f_x_high,
  *                                             f_sent_len, e_sent_len,
  *                                             self.train_max_initial_size, self.train_max_initial_size,             # <<<<<<<<<<<<<<
@@ -52743,7 +54483,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
               if (((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->find_fixpoint(__pyx_v_self, __pyx_v_f_back_low, __pyx_t_15, __pyx_v_f_links_low, __pyx_v_f_links_high, __pyx_v_e_links_low, __pyx_v_e_links_high, __pyx_v_e_low, __pyx_v_e_high, (&__pyx_v_e_x_low), (&__pyx_v_e_x_high), (&__pyx_v_f_x_low), (&__pyx_v_f_x_high), __pyx_v_f_sent_len, __pyx_v_e_sent_len, __pyx_v_self->train_max_initial_size, __pyx_v_self->train_max_initial_size, 1, 1, 1, 0, 1, 1, 0)) {
                 __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
 
-                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1674
+                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1670
  *                                             self.train_max_initial_size, self.train_max_initial_size,
  *                                             1, 1, 1, 0, 1, 1, 0) and
  *                                 ((not self.tight_phrases) or f_links_low[f_x_high-1] != -1) and             # <<<<<<<<<<<<<<
@@ -52759,17 +54499,17 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                 }
                 if (__pyx_t_7) {
 
-                  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1675
+                  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1671
  *                                             1, 1, 1, 0, 1, 1, 0) and
  *                                 ((not self.tight_phrases) or f_links_low[f_x_high-1] != -1) and
  *                                 self.find_fixpoint(f_high, f_x_high,             # <<<<<<<<<<<<<<
  *                                             f_links_low, f_links_high, e_links_low, e_links_high,
  *                                             -1, -1, e_gap_low+gap_start+num_gaps, e_gap_high+gap_start+num_gaps,
  */
-                  __pyx_t_14 = PyInt_FromLong(__pyx_v_f_x_high); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1675; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  __pyx_t_14 = PyInt_FromLong(__pyx_v_f_x_high); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1671; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   __Pyx_GOTREF(__pyx_t_14);
 
-                  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1680
+                  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1676
  *                                             f_gap_low+gap_start+num_gaps, f_gap_high+gap_start+num_gaps,
  *                                             f_sent_len, e_sent_len,
  *                                             self.train_max_initial_size, self.train_max_initial_size,             # <<<<<<<<<<<<<<
@@ -52792,7 +54532,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
             }
             if (__pyx_t_9) {
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1682
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1678
  *                                             self.train_max_initial_size, self.train_max_initial_size,
  *                                             0, 0, 0, 0, 0, 0, 0)):
  *                                 fphr_arr._clear()             # <<<<<<<<<<<<<<
@@ -52801,7 +54541,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
               ((struct __pyx_vtabstruct_3_sa_IntList *)__pyx_v_fphr_arr->__pyx_vtab)->_clear(__pyx_v_fphr_arr);
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1683
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1679
  *                                             0, 0, 0, 0, 0, 0, 0)):
  *                                 fphr_arr._clear()
  *                                 i = 1             # <<<<<<<<<<<<<<
@@ -52810,21 +54550,21 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
               __pyx_v_i = 1;
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1684
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1680
  *                                 fphr_arr._clear()
  *                                 i = 1
  *                                 self.findexes.reset()             # <<<<<<<<<<<<<<
  *                                 if f_back_low < f_low:
  *                                     fphr_arr._append(sym_setindex(self.category, i))
  */
-              __pyx_t_15 = PyObject_GetAttr(((PyObject *)__pyx_v_self->findexes), __pyx_n_s__reset); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1684; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_15 = PyObject_GetAttr(((PyObject *)__pyx_v_self->findexes), __pyx_n_s__reset); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1680; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_15);
-              __pyx_t_14 = PyObject_Call(__pyx_t_15, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1684; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_14 = PyObject_Call(__pyx_t_15, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1680; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_14);
               __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
               __Pyx_DECREF(__pyx_t_14); __pyx_t_14 = 0;
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1685
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1681
  *                                 i = 1
  *                                 self.findexes.reset()
  *                                 if f_back_low < f_low:             # <<<<<<<<<<<<<<
@@ -52834,7 +54574,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
               __pyx_t_9 = (__pyx_v_f_back_low < __pyx_v_f_low);
               if (__pyx_t_9) {
 
-                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1686
+                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1682
  *                                 self.findexes.reset()
  *                                 if f_back_low < f_low:
  *                                     fphr_arr._append(sym_setindex(self.category, i))             # <<<<<<<<<<<<<<
@@ -52843,7 +54583,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
                 ((struct __pyx_vtabstruct_3_sa_IntList *)__pyx_v_fphr_arr->__pyx_vtab)->_append(__pyx_v_fphr_arr, __pyx_f_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i));
 
-                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1687
+                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1683
  *                                 if f_back_low < f_low:
  *                                     fphr_arr._append(sym_setindex(self.category, i))
  *                                     i = i+1             # <<<<<<<<<<<<<<
@@ -52852,16 +54592,16 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
                 __pyx_v_i = (__pyx_v_i + 1);
 
-                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1688
+                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1684
  *                                     fphr_arr._append(sym_setindex(self.category, i))
  *                                     i = i+1
  *                                     self.findexes.append(sym_setindex(self.category, i))             # <<<<<<<<<<<<<<
  *                                 self.findexes.extend(self.findexes1)
  *                                 for j from 0 <= j < phrase.n:
  */
-                __pyx_t_14 = PyInt_FromLong(__pyx_f_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i)); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1688; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_14 = PyInt_FromLong(__pyx_f_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i)); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1684; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_14);
-                __pyx_t_15 = __Pyx_PyObject_Append(((PyObject *)__pyx_v_self->findexes), __pyx_t_14); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1688; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_15 = __Pyx_PyObject_Append(((PyObject *)__pyx_v_self->findexes), __pyx_t_14); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1684; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_15);
                 __Pyx_DECREF(__pyx_t_14); __pyx_t_14 = 0;
                 __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
@@ -52869,27 +54609,27 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
               }
               __pyx_L85:;
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1689
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1685
  *                                     i = i+1
  *                                     self.findexes.append(sym_setindex(self.category, i))
  *                                 self.findexes.extend(self.findexes1)             # <<<<<<<<<<<<<<
  *                                 for j from 0 <= j < phrase.n:
  *                                     if sym_isvar(phrase.syms[j]):
  */
-              __pyx_t_15 = PyObject_GetAttr(((PyObject *)__pyx_v_self->findexes), __pyx_n_s__extend); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1689; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_15 = PyObject_GetAttr(((PyObject *)__pyx_v_self->findexes), __pyx_n_s__extend); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1685; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_15);
-              __pyx_t_14 = PyTuple_New(1); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1689; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_14 = PyTuple_New(1); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1685; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_14);
               __Pyx_INCREF(((PyObject *)__pyx_v_self->findexes1));
               PyTuple_SET_ITEM(__pyx_t_14, 0, ((PyObject *)__pyx_v_self->findexes1));
               __Pyx_GIVEREF(((PyObject *)__pyx_v_self->findexes1));
-              __pyx_t_1 = PyObject_Call(__pyx_t_15, ((PyObject *)__pyx_t_14), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1689; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_1 = PyObject_Call(__pyx_t_15, ((PyObject *)__pyx_t_14), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1685; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_1);
               __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
               __Pyx_DECREF(((PyObject *)__pyx_t_14)); __pyx_t_14 = 0;
               __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1690
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1686
  *                                     self.findexes.append(sym_setindex(self.category, i))
  *                                 self.findexes.extend(self.findexes1)
  *                                 for j from 0 <= j < phrase.n:             # <<<<<<<<<<<<<<
@@ -52899,7 +54639,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
               __pyx_t_3 = __pyx_v_phrase->n;
               for (__pyx_v_j = 0; __pyx_v_j < __pyx_t_3; __pyx_v_j++) {
 
-                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1691
+                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1687
  *                                 self.findexes.extend(self.findexes1)
  *                                 for j from 0 <= j < phrase.n:
  *                                     if sym_isvar(phrase.syms[j]):             # <<<<<<<<<<<<<<
@@ -52909,7 +54649,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                 __pyx_t_4 = __pyx_f_3_sa_sym_isvar((__pyx_v_phrase->syms[__pyx_v_j]));
                 if (__pyx_t_4) {
 
-                  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1692
+                  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1688
  *                                 for j from 0 <= j < phrase.n:
  *                                     if sym_isvar(phrase.syms[j]):
  *                                         fphr_arr._append(sym_setindex(self.category, i))             # <<<<<<<<<<<<<<
@@ -52918,7 +54658,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
                   ((struct __pyx_vtabstruct_3_sa_IntList *)__pyx_v_fphr_arr->__pyx_vtab)->_append(__pyx_v_fphr_arr, __pyx_f_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i));
 
-                  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1693
+                  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1689
  *                                     if sym_isvar(phrase.syms[j]):
  *                                         fphr_arr._append(sym_setindex(self.category, i))
  *                                         i = i + 1             # <<<<<<<<<<<<<<
@@ -52930,7 +54670,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                 }
                 /*else*/ {
 
-                  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1695
+                  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1691
  *                                         i = i + 1
  *                                     else:
  *                                         fphr_arr._append(phrase.syms[j])             # <<<<<<<<<<<<<<
@@ -52942,7 +54682,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                 __pyx_L88:;
               }
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1696
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1692
  *                                     else:
  *                                         fphr_arr._append(phrase.syms[j])
  *                                 fphr_arr._append(sym_setindex(self.category, i))             # <<<<<<<<<<<<<<
@@ -52951,81 +54691,81 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
               ((struct __pyx_vtabstruct_3_sa_IntList *)__pyx_v_fphr_arr->__pyx_vtab)->_append(__pyx_v_fphr_arr, __pyx_f_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i));
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1697
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1693
  *                                         fphr_arr._append(phrase.syms[j])
  *                                 fphr_arr._append(sym_setindex(self.category, i))
  *                                 self.findexes.append(sym_setindex(self.category, i))             # <<<<<<<<<<<<<<
  *                                 fphr = Phrase(fphr_arr)
  *                                 phrase_list = self.extract_phrases(e_x_low, e_x_high, e_gap_low+gap_start, e_gap_high+gap_start, e_links_low, num_gaps+1,
  */
-              __pyx_t_1 = PyInt_FromLong(__pyx_f_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1697; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_1 = PyInt_FromLong(__pyx_f_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1693; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_1);
-              __pyx_t_14 = __Pyx_PyObject_Append(((PyObject *)__pyx_v_self->findexes), __pyx_t_1); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1697; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_14 = __Pyx_PyObject_Append(((PyObject *)__pyx_v_self->findexes), __pyx_t_1); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1693; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_14);
               __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
               __Pyx_DECREF(__pyx_t_14); __pyx_t_14 = 0;
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1698
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1694
  *                                 fphr_arr._append(sym_setindex(self.category, i))
  *                                 self.findexes.append(sym_setindex(self.category, i))
  *                                 fphr = Phrase(fphr_arr)             # <<<<<<<<<<<<<<
  *                                 phrase_list = self.extract_phrases(e_x_low, e_x_high, e_gap_low+gap_start, e_gap_high+gap_start, e_links_low, num_gaps+1,
  *                                                     f_x_low, f_x_high, f_gap_low+gap_start, f_gap_high+gap_start, f_links_low,
  */
-              __pyx_t_14 = PyTuple_New(1); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1698; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_14 = PyTuple_New(1); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1694; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_14);
               __Pyx_INCREF(((PyObject *)__pyx_v_fphr_arr));
               PyTuple_SET_ITEM(__pyx_t_14, 0, ((PyObject *)__pyx_v_fphr_arr));
               __Pyx_GIVEREF(((PyObject *)__pyx_v_fphr_arr));
-              __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_Phrase)), ((PyObject *)__pyx_t_14), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1698; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_Phrase)), ((PyObject *)__pyx_t_14), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1694; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_1);
               __Pyx_DECREF(((PyObject *)__pyx_t_14)); __pyx_t_14 = 0;
               __Pyx_DECREF(((PyObject *)__pyx_v_fphr));
               __pyx_v_fphr = ((struct __pyx_obj_3_sa_Phrase *)__pyx_t_1);
               __pyx_t_1 = 0;
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1701
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1697
  *                                 phrase_list = self.extract_phrases(e_x_low, e_x_high, e_gap_low+gap_start, e_gap_high+gap_start, e_links_low, num_gaps+1,
  *                                                     f_x_low, f_x_high, f_gap_low+gap_start, f_gap_high+gap_start, f_links_low,
  *                                                     matching.sent_id, e_sent_len, e_sent_start)             # <<<<<<<<<<<<<<
  *                                 if len(phrase_list) > 0:
  *                                     pair_count = 1.0 / len(phrase_list)
  */
-              __pyx_t_1 = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->extract_phrases(__pyx_v_self, __pyx_v_e_x_low, __pyx_v_e_x_high, (__pyx_v_e_gap_low + __pyx_v_gap_start), (__pyx_v_e_gap_high + __pyx_v_gap_start), __pyx_v_e_links_low, (__pyx_v_num_gaps + 1), __pyx_v_f_x_low, __pyx_v_f_x_high, (__pyx_v_f_gap_low + __pyx_v_gap_start), (__pyx_v_f_gap_high + __pyx_v_gap_start), __pyx_v_f_links_low, __pyx_v_matching->sent_id, __pyx_v_e_sent_len, __pyx_v_e_sent_start); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1699; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_1 = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->extract_phrases(__pyx_v_self, __pyx_v_e_x_low, __pyx_v_e_x_high, (__pyx_v_e_gap_low + __pyx_v_gap_start), (__pyx_v_e_gap_high + __pyx_v_gap_start), __pyx_v_e_links_low, (__pyx_v_num_gaps + 1), __pyx_v_f_x_low, __pyx_v_f_x_high, (__pyx_v_f_gap_low + __pyx_v_gap_start), (__pyx_v_f_gap_high + __pyx_v_gap_start), __pyx_v_f_links_low, __pyx_v_matching->sent_id, __pyx_v_e_sent_len, __pyx_v_e_sent_start); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1695; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_1);
               __Pyx_XDECREF(__pyx_v_phrase_list);
               __pyx_v_phrase_list = __pyx_t_1;
               __pyx_t_1 = 0;
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1702
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1698
  *                                                     f_x_low, f_x_high, f_gap_low+gap_start, f_gap_high+gap_start, f_links_low,
  *                                                     matching.sent_id, e_sent_len, e_sent_start)
  *                                 if len(phrase_list) > 0:             # <<<<<<<<<<<<<<
  *                                     pair_count = 1.0 / len(phrase_list)
  *                                 else:
  */
-              __pyx_t_13 = PyObject_Length(__pyx_v_phrase_list); if (unlikely(__pyx_t_13 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1702; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_13 = PyObject_Length(__pyx_v_phrase_list); if (unlikely(__pyx_t_13 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1698; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __pyx_t_9 = (__pyx_t_13 > 0);
               if (__pyx_t_9) {
 
-                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1703
+                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1699
  *                                                     matching.sent_id, e_sent_len, e_sent_start)
  *                                 if len(phrase_list) > 0:
  *                                     pair_count = 1.0 / len(phrase_list)             # <<<<<<<<<<<<<<
  *                                 else:
  *                                     pair_count = 0
  */
-                __pyx_t_13 = PyObject_Length(__pyx_v_phrase_list); if (unlikely(__pyx_t_13 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1703; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_13 = PyObject_Length(__pyx_v_phrase_list); if (unlikely(__pyx_t_13 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1699; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 if (unlikely(__pyx_t_13 == 0)) {
                   PyErr_Format(PyExc_ZeroDivisionError, "float division");
-                  {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1703; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1699; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 }
                 __pyx_v_pair_count = (1.0 / __pyx_t_13);
                 goto __pyx_L89;
               }
               /*else*/ {
 
-                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1705
+                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1701
  *                                     pair_count = 1.0 / len(phrase_list)
  *                                 else:
  *                                     pair_count = 0             # <<<<<<<<<<<<<<
@@ -53036,7 +54776,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
               }
               __pyx_L89:;
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1706
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1702
  *                                 else:
  *                                     pair_count = 0
  *                                 for phrase2, eindexes in phrase_list:             # <<<<<<<<<<<<<<
@@ -53047,7 +54787,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                 __pyx_t_1 = __pyx_v_phrase_list; __Pyx_INCREF(__pyx_t_1); __pyx_t_13 = 0;
                 __pyx_t_16 = NULL;
               } else {
-                __pyx_t_13 = -1; __pyx_t_1 = PyObject_GetIter(__pyx_v_phrase_list); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1706; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_13 = -1; __pyx_t_1 = PyObject_GetIter(__pyx_v_phrase_list); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1702; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_1);
                 __pyx_t_16 = Py_TYPE(__pyx_t_1)->tp_iternext;
               }
@@ -53057,21 +54797,21 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                   #if CYTHON_COMPILING_IN_CPYTHON
                   __pyx_t_14 = PyList_GET_ITEM(__pyx_t_1, __pyx_t_13); __Pyx_INCREF(__pyx_t_14); __pyx_t_13++;
                   #else
-                  __pyx_t_14 = PySequence_ITEM(__pyx_t_1, __pyx_t_13); __pyx_t_13++; if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1706; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+                  __pyx_t_14 = PySequence_ITEM(__pyx_t_1, __pyx_t_13); __pyx_t_13++; if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1702; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
                   #endif
                 } else if (!__pyx_t_16 && PyTuple_CheckExact(__pyx_t_1)) {
                   if (__pyx_t_13 >= PyTuple_GET_SIZE(__pyx_t_1)) break;
                   #if CYTHON_COMPILING_IN_CPYTHON
                   __pyx_t_14 = PyTuple_GET_ITEM(__pyx_t_1, __pyx_t_13); __Pyx_INCREF(__pyx_t_14); __pyx_t_13++;
                   #else
-                  __pyx_t_14 = PySequence_ITEM(__pyx_t_1, __pyx_t_13); __pyx_t_13++; if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1706; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+                  __pyx_t_14 = PySequence_ITEM(__pyx_t_1, __pyx_t_13); __pyx_t_13++; if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1702; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
                   #endif
                 } else {
                   __pyx_t_14 = __pyx_t_16(__pyx_t_1);
                   if (unlikely(!__pyx_t_14)) {
                     if (PyErr_Occurred()) {
                       if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-                      else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1706; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                      else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1702; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                     }
                     break;
                   }
@@ -53087,7 +54827,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                   if (unlikely(size != 2)) {
                     if (size > 2) __Pyx_RaiseTooManyValuesError(2);
                     else if (size >= 0) __Pyx_RaiseNeedMoreValuesError(size);
-                    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1706; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1702; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   }
                   #if CYTHON_COMPILING_IN_CPYTHON
                   if (likely(PyTuple_CheckExact(sequence))) {
@@ -53100,14 +54840,14 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                   __Pyx_INCREF(__pyx_t_15);
                   __Pyx_INCREF(__pyx_t_2);
                   #else
-                  __pyx_t_15 = PySequence_ITEM(sequence, 0); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1706; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-                  __pyx_t_2 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1706; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  __pyx_t_15 = PySequence_ITEM(sequence, 0); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1702; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  __pyx_t_2 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1702; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   #endif
                   __Pyx_DECREF(__pyx_t_14); __pyx_t_14 = 0;
                 } else
                 {
                   Py_ssize_t index = -1;
-                  __pyx_t_10 = PyObject_GetIter(__pyx_t_14); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1706; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  __pyx_t_10 = PyObject_GetIter(__pyx_t_14); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1702; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   __Pyx_GOTREF(__pyx_t_10);
                   __Pyx_DECREF(__pyx_t_14); __pyx_t_14 = 0;
                   __pyx_t_17 = Py_TYPE(__pyx_t_10)->tp_iternext;
@@ -53115,7 +54855,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                   __Pyx_GOTREF(__pyx_t_15);
                   index = 1; __pyx_t_2 = __pyx_t_17(__pyx_t_10); if (unlikely(!__pyx_t_2)) goto __pyx_L92_unpacking_failed;
                   __Pyx_GOTREF(__pyx_t_2);
-                  if (__Pyx_IternextUnpackEndCheck(__pyx_t_17(__pyx_t_10), 2) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1706; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  if (__Pyx_IternextUnpackEndCheck(__pyx_t_17(__pyx_t_10), 2) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1702; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   __pyx_t_17 = NULL;
                   __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
                   goto __pyx_L93_unpacking_done;
@@ -53123,7 +54863,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                   __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
                   __pyx_t_17 = NULL;
                   if (__Pyx_IterFinish() == 0) __Pyx_RaiseNeedMoreValuesError(index);
-                  {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1706; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1702; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   __pyx_L93_unpacking_done:;
                 }
                 __Pyx_XDECREF(__pyx_v_phrase2);
@@ -53133,7 +54873,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                 __pyx_v_eindexes = __pyx_t_2;
                 __pyx_t_2 = 0;
 
-                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1707
+                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1703
  *                                     pair_count = 0
  *                                 for phrase2, eindexes in phrase_list:
  *                                     als3 = self.create_alignments(sent_links,num_links,self.findexes,eindexes)             # <<<<<<<<<<<<<<
@@ -53142,31 +54882,31 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
                 __pyx_t_14 = ((PyObject *)__pyx_v_self->findexes);
                 __Pyx_INCREF(__pyx_t_14);
-                __pyx_t_2 = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->create_alignments(__pyx_v_self, __pyx_v_sent_links, __pyx_v_num_links, __pyx_t_14, __pyx_v_eindexes); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1707; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_2 = ((PyObject *)((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->create_alignments(__pyx_v_self, __pyx_v_sent_links, __pyx_v_num_links, __pyx_t_14, __pyx_v_eindexes)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1703; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_2);
                 __Pyx_DECREF(__pyx_t_14); __pyx_t_14 = 0;
-                __Pyx_XDECREF(__pyx_v_als3);
-                __pyx_v_als3 = __pyx_t_2;
+                __Pyx_XDECREF(((PyObject *)__pyx_v_als3));
+                __pyx_v_als3 = ((struct __pyx_obj_3_sa_IntList *)__pyx_t_2);
                 __pyx_t_2 = 0;
 
-                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1708
+                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1704
  *                                 for phrase2, eindexes in phrase_list:
  *                                     als3 = self.create_alignments(sent_links,num_links,self.findexes,eindexes)
  *                                     extracts.append((fphr, phrase2, pair_count, tuple(als3)))             # <<<<<<<<<<<<<<
  *                         if (num_gaps < self.max_nonterminals - 1 and
  *                             phrase_len+1 < self.max_length and
  */
-                __pyx_t_2 = PyFloat_FromDouble(__pyx_v_pair_count); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1708; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_2 = PyFloat_FromDouble(__pyx_v_pair_count); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1704; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_2);
-                __pyx_t_14 = PyTuple_New(1); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1708; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_14 = PyTuple_New(1); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1704; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_14);
-                __Pyx_INCREF(__pyx_v_als3);
-                PyTuple_SET_ITEM(__pyx_t_14, 0, __pyx_v_als3);
-                __Pyx_GIVEREF(__pyx_v_als3);
-                __pyx_t_15 = PyObject_Call(((PyObject *)((PyObject*)(&PyTuple_Type))), ((PyObject *)__pyx_t_14), NULL); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1708; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __Pyx_INCREF(((PyObject *)__pyx_v_als3));
+                PyTuple_SET_ITEM(__pyx_t_14, 0, ((PyObject *)__pyx_v_als3));
+                __Pyx_GIVEREF(((PyObject *)__pyx_v_als3));
+                __pyx_t_15 = PyObject_Call(((PyObject *)((PyObject*)(&PyTuple_Type))), ((PyObject *)__pyx_t_14), NULL); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1704; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_15);
                 __Pyx_DECREF(((PyObject *)__pyx_t_14)); __pyx_t_14 = 0;
-                __pyx_t_14 = PyTuple_New(4); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1708; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_14 = PyTuple_New(4); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1704; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_14);
                 __Pyx_INCREF(((PyObject *)__pyx_v_fphr));
                 PyTuple_SET_ITEM(__pyx_t_14, 0, ((PyObject *)__pyx_v_fphr));
@@ -53180,7 +54920,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                 __Pyx_GIVEREF(__pyx_t_15);
                 __pyx_t_2 = 0;
                 __pyx_t_15 = 0;
-                __pyx_t_15 = __Pyx_PyObject_Append(__pyx_v_extracts, ((PyObject *)__pyx_t_14)); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1708; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_15 = __Pyx_PyObject_Append(__pyx_v_extracts, ((PyObject *)__pyx_t_14)); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1704; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_15);
                 __Pyx_DECREF(((PyObject *)__pyx_t_14)); __pyx_t_14 = 0;
                 __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
@@ -53193,7 +54933,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
           }
           __pyx_L79:;
 
-          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1709
+          /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1705
  *                                     als3 = self.create_alignments(sent_links,num_links,self.findexes,eindexes)
  *                                     extracts.append((fphr, phrase2, pair_count, tuple(als3)))
  *                         if (num_gaps < self.max_nonterminals - 1 and             # <<<<<<<<<<<<<<
@@ -53203,7 +54943,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
           __pyx_t_9 = (__pyx_v_num_gaps < (__pyx_v_self->max_nonterminals - 1));
           if (__pyx_t_9) {
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1710
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1706
  *                                     extracts.append((fphr, phrase2, pair_count, tuple(als3)))
  *                         if (num_gaps < self.max_nonterminals - 1 and
  *                             phrase_len+1 < self.max_length and             # <<<<<<<<<<<<<<
@@ -53213,7 +54953,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
             __pyx_t_7 = ((__pyx_v_phrase_len + 1) < __pyx_v_self->max_length);
             if (__pyx_t_7) {
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1711
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1707
  *                         if (num_gaps < self.max_nonterminals - 1 and
  *                             phrase_len+1 < self.max_length and
  *                             f_back_high == f_high and             # <<<<<<<<<<<<<<
@@ -53223,7 +54963,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
               __pyx_t_18 = (__pyx_v_f_back_high == __pyx_v_f_high);
               if (__pyx_t_18) {
 
-                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1712
+                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1708
  *                             phrase_len+1 < self.max_length and
  *                             f_back_high == f_high and
  *                             f_back_low == f_low and             # <<<<<<<<<<<<<<
@@ -53233,7 +54973,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                 __pyx_t_8 = (__pyx_v_f_back_low == __pyx_v_f_low);
                 if (__pyx_t_8) {
 
-                  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1713
+                  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1709
  *                             f_back_high == f_high and
  *                             f_back_low == f_low and
  *                             f_back_high - f_back_low + (2*self.train_min_gap_size) <= self.train_max_initial_size and             # <<<<<<<<<<<<<<
@@ -53243,7 +54983,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                   __pyx_t_19 = (((__pyx_v_f_back_high - __pyx_v_f_back_low) + (2 * __pyx_v_self->train_min_gap_size)) <= __pyx_v_self->train_max_initial_size);
                   if (__pyx_t_19) {
 
-                    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1714
+                    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1710
  *                             f_back_low == f_low and
  *                             f_back_high - f_back_low + (2*self.train_min_gap_size) <= self.train_max_initial_size and
  *                             f_low >= self.train_min_gap_size and             # <<<<<<<<<<<<<<
@@ -53253,7 +54993,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                     __pyx_t_20 = (__pyx_v_f_low >= __pyx_v_self->train_min_gap_size);
                     if (__pyx_t_20) {
 
-                      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1715
+                      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1711
  *                             f_back_high - f_back_low + (2*self.train_min_gap_size) <= self.train_max_initial_size and
  *                             f_low >= self.train_min_gap_size and
  *                             f_high <= f_sent_len - self.train_min_gap_size and             # <<<<<<<<<<<<<<
@@ -53263,7 +55003,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                       __pyx_t_21 = (__pyx_v_f_high <= (__pyx_v_f_sent_len - __pyx_v_self->train_min_gap_size));
                       if (__pyx_t_21) {
 
-                        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1716
+                        /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1712
  *                             f_low >= self.train_min_gap_size and
  *                             f_high <= f_sent_len - self.train_min_gap_size and
  *                             ((not self.tight_phrases) or (f_links_low[f_low-1] != -1 and f_links_low[f_high] != -1))):             # <<<<<<<<<<<<<<
@@ -53313,7 +55053,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
           }
           if (__pyx_t_7) {
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1718
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1714
  *                             ((not self.tight_phrases) or (f_links_low[f_low-1] != -1 and f_links_low[f_high] != -1))):
  * 
  *                             met_constraints = 1             # <<<<<<<<<<<<<<
@@ -53322,7 +55062,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
             __pyx_v_met_constraints = 1;
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1719
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1715
  * 
  *                             met_constraints = 1
  *                             f_x_low = f_low-self.train_min_gap_size             # <<<<<<<<<<<<<<
@@ -53331,7 +55071,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
             __pyx_v_f_x_low = (__pyx_v_f_low - __pyx_v_self->train_min_gap_size);
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1720
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1716
  *                             met_constraints = 1
  *                             f_x_low = f_low-self.train_min_gap_size
  *                             if self.tight_phrases:             # <<<<<<<<<<<<<<
@@ -53340,7 +55080,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
             if (__pyx_v_self->tight_phrases) {
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1721
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1717
  *                             f_x_low = f_low-self.train_min_gap_size
  *                             if self.tight_phrases:
  *                                 while f_x_low >= 0 and f_links_low[f_x_low] == -1:             # <<<<<<<<<<<<<<
@@ -53357,7 +55097,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                 }
                 if (!__pyx_t_18) break;
 
-                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1722
+                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1718
  *                             if self.tight_phrases:
  *                                 while f_x_low >= 0 and f_links_low[f_x_low] == -1:
  *                                     f_x_low = f_x_low - 1             # <<<<<<<<<<<<<<
@@ -53370,7 +55110,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
             }
             __pyx_L95:;
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1723
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1719
  *                                 while f_x_low >= 0 and f_links_low[f_x_low] == -1:
  *                                     f_x_low = f_x_low - 1
  *                             if f_x_low < 0:             # <<<<<<<<<<<<<<
@@ -53380,7 +55120,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
             __pyx_t_18 = (__pyx_v_f_x_low < 0);
             if (__pyx_t_18) {
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1724
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1720
  *                                     f_x_low = f_x_low - 1
  *                             if f_x_low < 0:
  *                                 met_constraints = 0             # <<<<<<<<<<<<<<
@@ -53392,7 +55132,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
             }
             __pyx_L98:;
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1726
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1722
  *                                 met_constraints = 0
  * 
  *                             f_x_high = f_high+self.train_min_gap_size             # <<<<<<<<<<<<<<
@@ -53401,7 +55141,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
             __pyx_v_f_x_high = (__pyx_v_f_high + __pyx_v_self->train_min_gap_size);
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1727
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1723
  * 
  *                             f_x_high = f_high+self.train_min_gap_size
  *                             if self.tight_phrases:             # <<<<<<<<<<<<<<
@@ -53410,7 +55150,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
             if (__pyx_v_self->tight_phrases) {
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1728
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1724
  *                             f_x_high = f_high+self.train_min_gap_size
  *                             if self.tight_phrases:
  *                                 while f_x_high <= f_sent_len and f_links_low[f_x_high-1] == -1:             # <<<<<<<<<<<<<<
@@ -53427,7 +55167,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                 }
                 if (!__pyx_t_9) break;
 
-                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1729
+                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1725
  *                             if self.tight_phrases:
  *                                 while f_x_high <= f_sent_len and f_links_low[f_x_high-1] == -1:
  *                                     f_x_high = f_x_high + 1             # <<<<<<<<<<<<<<
@@ -53440,7 +55180,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
             }
             __pyx_L99:;
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1730
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1726
  *                                 while f_x_high <= f_sent_len and f_links_low[f_x_high-1] == -1:
  *                                     f_x_high = f_x_high + 1
  *                             if f_x_high > f_sent_len or f_x_high - f_x_low > self.train_max_initial_size:             # <<<<<<<<<<<<<<
@@ -53456,7 +55196,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
             }
             if (__pyx_t_7) {
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1731
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1727
  *                                     f_x_high = f_x_high + 1
  *                             if f_x_high > f_sent_len or f_x_high - f_x_low > self.train_max_initial_size:
  *                                 met_constraints = 0             # <<<<<<<<<<<<<<
@@ -53468,7 +55208,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
             }
             __pyx_L102:;
 
-            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1733
+            /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1729
  *                                 met_constraints = 0
  * 
  *                             if (met_constraints and             # <<<<<<<<<<<<<<
@@ -53477,17 +55217,17 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
             if (__pyx_v_met_constraints) {
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1734
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1730
  * 
  *                             if (met_constraints and
  *                                 self.find_fixpoint(f_x_low, f_x_high,             # <<<<<<<<<<<<<<
  *                                                 f_links_low, f_links_high, e_links_low, e_links_high,
  *                                                 e_low, e_high, &e_x_low, &e_x_high, &f_x_low, &f_x_high,
  */
-              __pyx_t_1 = PyInt_FromLong(__pyx_v_f_x_high); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1734; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_1 = PyInt_FromLong(__pyx_v_f_x_high); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1730; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_1);
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1738
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1734
  *                                                 e_low, e_high, &e_x_low, &e_x_high, &f_x_low, &f_x_high,
  *                                                 f_sent_len, e_sent_len,
  *                                                 self.train_max_initial_size, self.train_max_initial_size,             # <<<<<<<<<<<<<<
@@ -53497,7 +55237,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
               if (((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->find_fixpoint(__pyx_v_self, __pyx_v_f_x_low, __pyx_t_1, __pyx_v_f_links_low, __pyx_v_f_links_high, __pyx_v_e_links_low, __pyx_v_e_links_high, __pyx_v_e_low, __pyx_v_e_high, (&__pyx_v_e_x_low), (&__pyx_v_e_x_high), (&__pyx_v_f_x_low), (&__pyx_v_f_x_high), __pyx_v_f_sent_len, __pyx_v_e_sent_len, __pyx_v_self->train_max_initial_size, __pyx_v_self->train_max_initial_size, 1, 1, 2, 1, 1, 1, 1)) {
                 __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1740
+                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1736
  *                                                 self.train_max_initial_size, self.train_max_initial_size,
  *                                                 1, 1, 2, 1, 1, 1, 1) and
  *                                 ((not self.tight_phrases) or (f_links_low[f_x_low] != -1 and f_links_low[f_x_high-1] != -1)) and             # <<<<<<<<<<<<<<
@@ -53519,17 +55259,17 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                 }
                 if (__pyx_t_9) {
 
-                  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1741
+                  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1737
  *                                                 1, 1, 2, 1, 1, 1, 1) and
  *                                 ((not self.tight_phrases) or (f_links_low[f_x_low] != -1 and f_links_low[f_x_high-1] != -1)) and
  *                                 self.find_fixpoint(f_x_low, f_low,             # <<<<<<<<<<<<<<
  *                                                 f_links_low, f_links_high, e_links_low, e_links_high,
  *                                                 -1, -1, e_gap_low, e_gap_high, f_gap_low, f_gap_high,
  */
-                  __pyx_t_15 = PyInt_FromLong(__pyx_v_f_low); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1741; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  __pyx_t_15 = PyInt_FromLong(__pyx_v_f_low); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1737; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   __Pyx_GOTREF(__pyx_t_15);
 
-                  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1745
+                  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1741
  *                                                 -1, -1, e_gap_low, e_gap_high, f_gap_low, f_gap_high,
  *                                                 f_sent_len, e_sent_len,
  *                                                 self.train_max_initial_size, self.train_max_initial_size,             # <<<<<<<<<<<<<<
@@ -53540,17 +55280,17 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                   __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
                   if (__pyx_t_3) {
 
-                    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1747
+                    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1743
  *                                                 self.train_max_initial_size, self.train_max_initial_size,
  *                                                 0, 0, 0, 0, 0, 0, 0) and
  *                                 self.find_fixpoint(f_high, f_x_high,             # <<<<<<<<<<<<<<
  *                                                 f_links_low, f_links_high, e_links_low, e_links_high,
  *                                                 -1, -1, e_gap_low+1+num_gaps, e_gap_high+1+num_gaps,
  */
-                    __pyx_t_15 = PyInt_FromLong(__pyx_v_f_x_high); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1747; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                    __pyx_t_15 = PyInt_FromLong(__pyx_v_f_x_high); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1743; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                     __Pyx_GOTREF(__pyx_t_15);
 
-                    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1752
+                    /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1748
  *                                                 f_gap_low+1+num_gaps, f_gap_high+1+num_gaps,
  *                                                 f_sent_len, e_sent_len,
  *                                                 self.train_max_initial_size, self.train_max_initial_size,             # <<<<<<<<<<<<<<
@@ -53578,7 +55318,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
             }
             if (__pyx_t_8) {
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1754
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1750
  *                                                 self.train_max_initial_size, self.train_max_initial_size,
  *                                                 0, 0, 0, 0, 0, 0, 0)):
  *                                 fphr_arr._clear()             # <<<<<<<<<<<<<<
@@ -53587,7 +55327,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
               ((struct __pyx_vtabstruct_3_sa_IntList *)__pyx_v_fphr_arr->__pyx_vtab)->_clear(__pyx_v_fphr_arr);
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1755
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1751
  *                                                 0, 0, 0, 0, 0, 0, 0)):
  *                                 fphr_arr._clear()
  *                                 i = 1             # <<<<<<<<<<<<<<
@@ -53596,35 +55336,35 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
               __pyx_v_i = 1;
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1756
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1752
  *                                 fphr_arr._clear()
  *                                 i = 1
  *                                 self.findexes.reset()             # <<<<<<<<<<<<<<
  *                                 self.findexes.append(sym_setindex(self.category, i))
  *                                 fphr_arr._append(sym_setindex(self.category, i))
  */
-              __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_v_self->findexes), __pyx_n_s__reset); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1756; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_v_self->findexes), __pyx_n_s__reset); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1752; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_1);
-              __pyx_t_15 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1756; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_15 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1752; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_15);
               __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
               __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1757
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1753
  *                                 i = 1
  *                                 self.findexes.reset()
  *                                 self.findexes.append(sym_setindex(self.category, i))             # <<<<<<<<<<<<<<
  *                                 fphr_arr._append(sym_setindex(self.category, i))
  *                                 i = i+1
  */
-              __pyx_t_15 = PyInt_FromLong(__pyx_f_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i)); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1757; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_15 = PyInt_FromLong(__pyx_f_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i)); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1753; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_15);
-              __pyx_t_1 = __Pyx_PyObject_Append(((PyObject *)__pyx_v_self->findexes), __pyx_t_15); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1757; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_1 = __Pyx_PyObject_Append(((PyObject *)__pyx_v_self->findexes), __pyx_t_15); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1753; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_1);
               __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
               __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1758
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1754
  *                                 self.findexes.reset()
  *                                 self.findexes.append(sym_setindex(self.category, i))
  *                                 fphr_arr._append(sym_setindex(self.category, i))             # <<<<<<<<<<<<<<
@@ -53633,7 +55373,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
               ((struct __pyx_vtabstruct_3_sa_IntList *)__pyx_v_fphr_arr->__pyx_vtab)->_append(__pyx_v_fphr_arr, __pyx_f_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i));
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1759
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1755
  *                                 self.findexes.append(sym_setindex(self.category, i))
  *                                 fphr_arr._append(sym_setindex(self.category, i))
  *                                 i = i+1             # <<<<<<<<<<<<<<
@@ -53642,27 +55382,27 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
               __pyx_v_i = (__pyx_v_i + 1);
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1760
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1756
  *                                 fphr_arr._append(sym_setindex(self.category, i))
  *                                 i = i+1
  *                                 self.findexes.extend(self.findexes1)             # <<<<<<<<<<<<<<
  *                                 for j from 0 <= j < phrase.n:
  *                                     if sym_isvar(phrase.syms[j]):
  */
-              __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_v_self->findexes), __pyx_n_s__extend); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1760; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_v_self->findexes), __pyx_n_s__extend); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1756; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_1);
-              __pyx_t_15 = PyTuple_New(1); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1760; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_15 = PyTuple_New(1); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1756; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_15);
               __Pyx_INCREF(((PyObject *)__pyx_v_self->findexes1));
               PyTuple_SET_ITEM(__pyx_t_15, 0, ((PyObject *)__pyx_v_self->findexes1));
               __Pyx_GIVEREF(((PyObject *)__pyx_v_self->findexes1));
-              __pyx_t_14 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_15), NULL); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1760; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_14 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_15), NULL); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1756; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_14);
               __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
               __Pyx_DECREF(((PyObject *)__pyx_t_15)); __pyx_t_15 = 0;
               __Pyx_DECREF(__pyx_t_14); __pyx_t_14 = 0;
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1761
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1757
  *                                 i = i+1
  *                                 self.findexes.extend(self.findexes1)
  *                                 for j from 0 <= j < phrase.n:             # <<<<<<<<<<<<<<
@@ -53672,7 +55412,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
               __pyx_t_3 = __pyx_v_phrase->n;
               for (__pyx_v_j = 0; __pyx_v_j < __pyx_t_3; __pyx_v_j++) {
 
-                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1762
+                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1758
  *                                 self.findexes.extend(self.findexes1)
  *                                 for j from 0 <= j < phrase.n:
  *                                     if sym_isvar(phrase.syms[j]):             # <<<<<<<<<<<<<<
@@ -53682,7 +55422,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                 __pyx_t_4 = __pyx_f_3_sa_sym_isvar((__pyx_v_phrase->syms[__pyx_v_j]));
                 if (__pyx_t_4) {
 
-                  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1763
+                  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1759
  *                                 for j from 0 <= j < phrase.n:
  *                                     if sym_isvar(phrase.syms[j]):
  *                                         fphr_arr._append(sym_setindex(self.category, i))             # <<<<<<<<<<<<<<
@@ -53691,7 +55431,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
                   ((struct __pyx_vtabstruct_3_sa_IntList *)__pyx_v_fphr_arr->__pyx_vtab)->_append(__pyx_v_fphr_arr, __pyx_f_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i));
 
-                  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1764
+                  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1760
  *                                     if sym_isvar(phrase.syms[j]):
  *                                         fphr_arr._append(sym_setindex(self.category, i))
  *                                         i = i + 1             # <<<<<<<<<<<<<<
@@ -53703,7 +55443,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                 }
                 /*else*/ {
 
-                  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1766
+                  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1762
  *                                         i = i + 1
  *                                     else:
  *                                         fphr_arr._append(phrase.syms[j])             # <<<<<<<<<<<<<<
@@ -53715,7 +55455,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                 __pyx_L106:;
               }
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1767
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1763
  *                                     else:
  *                                         fphr_arr._append(phrase.syms[j])
  *                                 fphr_arr._append(sym_setindex(self.category, i))             # <<<<<<<<<<<<<<
@@ -53724,81 +55464,81 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
               ((struct __pyx_vtabstruct_3_sa_IntList *)__pyx_v_fphr_arr->__pyx_vtab)->_append(__pyx_v_fphr_arr, __pyx_f_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i));
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1768
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1764
  *                                         fphr_arr._append(phrase.syms[j])
  *                                 fphr_arr._append(sym_setindex(self.category, i))
  *                                 self.findexes.append(sym_setindex(self.category, i))             # <<<<<<<<<<<<<<
  *                                 fphr = Phrase(fphr_arr)
  *                                 phrase_list = self.extract_phrases(e_x_low, e_x_high, e_gap_low, e_gap_high, e_links_low, num_gaps+2,
  */
-              __pyx_t_14 = PyInt_FromLong(__pyx_f_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i)); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1768; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_14 = PyInt_FromLong(__pyx_f_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i)); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1764; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_14);
-              __pyx_t_15 = __Pyx_PyObject_Append(((PyObject *)__pyx_v_self->findexes), __pyx_t_14); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1768; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_15 = __Pyx_PyObject_Append(((PyObject *)__pyx_v_self->findexes), __pyx_t_14); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1764; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_15);
               __Pyx_DECREF(__pyx_t_14); __pyx_t_14 = 0;
               __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1769
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1765
  *                                 fphr_arr._append(sym_setindex(self.category, i))
  *                                 self.findexes.append(sym_setindex(self.category, i))
  *                                 fphr = Phrase(fphr_arr)             # <<<<<<<<<<<<<<
  *                                 phrase_list = self.extract_phrases(e_x_low, e_x_high, e_gap_low, e_gap_high, e_links_low, num_gaps+2,
  *                                                     f_x_low, f_x_high, f_gap_low, f_gap_high, f_links_low,
  */
-              __pyx_t_15 = PyTuple_New(1); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1769; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_15 = PyTuple_New(1); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1765; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_15);
               __Pyx_INCREF(((PyObject *)__pyx_v_fphr_arr));
               PyTuple_SET_ITEM(__pyx_t_15, 0, ((PyObject *)__pyx_v_fphr_arr));
               __Pyx_GIVEREF(((PyObject *)__pyx_v_fphr_arr));
-              __pyx_t_14 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_Phrase)), ((PyObject *)__pyx_t_15), NULL); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1769; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_14 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_Phrase)), ((PyObject *)__pyx_t_15), NULL); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1765; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_14);
               __Pyx_DECREF(((PyObject *)__pyx_t_15)); __pyx_t_15 = 0;
               __Pyx_DECREF(((PyObject *)__pyx_v_fphr));
               __pyx_v_fphr = ((struct __pyx_obj_3_sa_Phrase *)__pyx_t_14);
               __pyx_t_14 = 0;
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1772
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1768
  *                                 phrase_list = self.extract_phrases(e_x_low, e_x_high, e_gap_low, e_gap_high, e_links_low, num_gaps+2,
  *                                                     f_x_low, f_x_high, f_gap_low, f_gap_high, f_links_low,
  *                                                     matching.sent_id, e_sent_len, e_sent_start)             # <<<<<<<<<<<<<<
  *                                 if len(phrase_list) > 0:
  *                                     pair_count = 1.0 / len(phrase_list)
  */
-              __pyx_t_14 = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->extract_phrases(__pyx_v_self, __pyx_v_e_x_low, __pyx_v_e_x_high, __pyx_v_e_gap_low, __pyx_v_e_gap_high, __pyx_v_e_links_low, (__pyx_v_num_gaps + 2), __pyx_v_f_x_low, __pyx_v_f_x_high, __pyx_v_f_gap_low, __pyx_v_f_gap_high, __pyx_v_f_links_low, __pyx_v_matching->sent_id, __pyx_v_e_sent_len, __pyx_v_e_sent_start); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1770; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_14 = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->extract_phrases(__pyx_v_self, __pyx_v_e_x_low, __pyx_v_e_x_high, __pyx_v_e_gap_low, __pyx_v_e_gap_high, __pyx_v_e_links_low, (__pyx_v_num_gaps + 2), __pyx_v_f_x_low, __pyx_v_f_x_high, __pyx_v_f_gap_low, __pyx_v_f_gap_high, __pyx_v_f_links_low, __pyx_v_matching->sent_id, __pyx_v_e_sent_len, __pyx_v_e_sent_start); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1766; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_14);
               __Pyx_XDECREF(__pyx_v_phrase_list);
               __pyx_v_phrase_list = __pyx_t_14;
               __pyx_t_14 = 0;
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1773
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1769
  *                                                     f_x_low, f_x_high, f_gap_low, f_gap_high, f_links_low,
  *                                                     matching.sent_id, e_sent_len, e_sent_start)
  *                                 if len(phrase_list) > 0:             # <<<<<<<<<<<<<<
  *                                     pair_count = 1.0 / len(phrase_list)
  *                                 else:
  */
-              __pyx_t_13 = PyObject_Length(__pyx_v_phrase_list); if (unlikely(__pyx_t_13 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1773; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_13 = PyObject_Length(__pyx_v_phrase_list); if (unlikely(__pyx_t_13 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1769; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __pyx_t_8 = (__pyx_t_13 > 0);
               if (__pyx_t_8) {
 
-                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1774
+                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1770
  *                                                     matching.sent_id, e_sent_len, e_sent_start)
  *                                 if len(phrase_list) > 0:
  *                                     pair_count = 1.0 / len(phrase_list)             # <<<<<<<<<<<<<<
  *                                 else:
  *                                     pair_count = 0
  */
-                __pyx_t_13 = PyObject_Length(__pyx_v_phrase_list); if (unlikely(__pyx_t_13 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1774; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_13 = PyObject_Length(__pyx_v_phrase_list); if (unlikely(__pyx_t_13 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1770; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 if (unlikely(__pyx_t_13 == 0)) {
                   PyErr_Format(PyExc_ZeroDivisionError, "float division");
-                  {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1774; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1770; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 }
                 __pyx_v_pair_count = (1.0 / __pyx_t_13);
                 goto __pyx_L107;
               }
               /*else*/ {
 
-                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1776
+                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1772
  *                                     pair_count = 1.0 / len(phrase_list)
  *                                 else:
  *                                     pair_count = 0             # <<<<<<<<<<<<<<
@@ -53809,7 +55549,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
               }
               __pyx_L107:;
 
-              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1777
+              /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1773
  *                                 else:
  *                                     pair_count = 0
  *                                 for phrase2, eindexes in phrase_list:             # <<<<<<<<<<<<<<
@@ -53820,7 +55560,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                 __pyx_t_14 = __pyx_v_phrase_list; __Pyx_INCREF(__pyx_t_14); __pyx_t_13 = 0;
                 __pyx_t_16 = NULL;
               } else {
-                __pyx_t_13 = -1; __pyx_t_14 = PyObject_GetIter(__pyx_v_phrase_list); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1777; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_13 = -1; __pyx_t_14 = PyObject_GetIter(__pyx_v_phrase_list); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1773; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_14);
                 __pyx_t_16 = Py_TYPE(__pyx_t_14)->tp_iternext;
               }
@@ -53830,21 +55570,21 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                   #if CYTHON_COMPILING_IN_CPYTHON
                   __pyx_t_15 = PyList_GET_ITEM(__pyx_t_14, __pyx_t_13); __Pyx_INCREF(__pyx_t_15); __pyx_t_13++;
                   #else
-                  __pyx_t_15 = PySequence_ITEM(__pyx_t_14, __pyx_t_13); __pyx_t_13++; if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1777; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+                  __pyx_t_15 = PySequence_ITEM(__pyx_t_14, __pyx_t_13); __pyx_t_13++; if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1773; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
                   #endif
                 } else if (!__pyx_t_16 && PyTuple_CheckExact(__pyx_t_14)) {
                   if (__pyx_t_13 >= PyTuple_GET_SIZE(__pyx_t_14)) break;
                   #if CYTHON_COMPILING_IN_CPYTHON
                   __pyx_t_15 = PyTuple_GET_ITEM(__pyx_t_14, __pyx_t_13); __Pyx_INCREF(__pyx_t_15); __pyx_t_13++;
                   #else
-                  __pyx_t_15 = PySequence_ITEM(__pyx_t_14, __pyx_t_13); __pyx_t_13++; if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1777; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+                  __pyx_t_15 = PySequence_ITEM(__pyx_t_14, __pyx_t_13); __pyx_t_13++; if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1773; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
                   #endif
                 } else {
                   __pyx_t_15 = __pyx_t_16(__pyx_t_14);
                   if (unlikely(!__pyx_t_15)) {
                     if (PyErr_Occurred()) {
                       if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-                      else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1777; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                      else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1773; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                     }
                     break;
                   }
@@ -53860,7 +55600,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                   if (unlikely(size != 2)) {
                     if (size > 2) __Pyx_RaiseTooManyValuesError(2);
                     else if (size >= 0) __Pyx_RaiseNeedMoreValuesError(size);
-                    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1777; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1773; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   }
                   #if CYTHON_COMPILING_IN_CPYTHON
                   if (likely(PyTuple_CheckExact(sequence))) {
@@ -53873,14 +55613,14 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                   __Pyx_INCREF(__pyx_t_1);
                   __Pyx_INCREF(__pyx_t_2);
                   #else
-                  __pyx_t_1 = PySequence_ITEM(sequence, 0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1777; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-                  __pyx_t_2 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1777; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  __pyx_t_1 = PySequence_ITEM(sequence, 0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1773; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  __pyx_t_2 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1773; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   #endif
                   __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
                 } else
                 {
                   Py_ssize_t index = -1;
-                  __pyx_t_10 = PyObject_GetIter(__pyx_t_15); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1777; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  __pyx_t_10 = PyObject_GetIter(__pyx_t_15); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1773; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   __Pyx_GOTREF(__pyx_t_10);
                   __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
                   __pyx_t_17 = Py_TYPE(__pyx_t_10)->tp_iternext;
@@ -53888,7 +55628,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                   __Pyx_GOTREF(__pyx_t_1);
                   index = 1; __pyx_t_2 = __pyx_t_17(__pyx_t_10); if (unlikely(!__pyx_t_2)) goto __pyx_L110_unpacking_failed;
                   __Pyx_GOTREF(__pyx_t_2);
-                  if (__Pyx_IternextUnpackEndCheck(__pyx_t_17(__pyx_t_10), 2) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1777; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  if (__Pyx_IternextUnpackEndCheck(__pyx_t_17(__pyx_t_10), 2) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1773; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   __pyx_t_17 = NULL;
                   __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
                   goto __pyx_L111_unpacking_done;
@@ -53896,7 +55636,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                   __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
                   __pyx_t_17 = NULL;
                   if (__Pyx_IterFinish() == 0) __Pyx_RaiseNeedMoreValuesError(index);
-                  {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1777; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1773; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   __pyx_L111_unpacking_done:;
                 }
                 __Pyx_XDECREF(__pyx_v_phrase2);
@@ -53906,7 +55646,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                 __pyx_v_eindexes = __pyx_t_2;
                 __pyx_t_2 = 0;
 
-                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1778
+                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1774
  *                                     pair_count = 0
  *                                 for phrase2, eindexes in phrase_list:
  *                                     als4 = self.create_alignments(sent_links,num_links,self.findexes,eindexes)             # <<<<<<<<<<<<<<
@@ -53915,31 +55655,31 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
                 __pyx_t_15 = ((PyObject *)__pyx_v_self->findexes);
                 __Pyx_INCREF(__pyx_t_15);
-                __pyx_t_2 = ((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->create_alignments(__pyx_v_self, __pyx_v_sent_links, __pyx_v_num_links, __pyx_t_15, __pyx_v_eindexes); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1778; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_2 = ((PyObject *)((struct __pyx_vtabstruct_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->create_alignments(__pyx_v_self, __pyx_v_sent_links, __pyx_v_num_links, __pyx_t_15, __pyx_v_eindexes)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1774; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_2);
                 __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
-                __Pyx_XDECREF(__pyx_v_als4);
-                __pyx_v_als4 = __pyx_t_2;
+                __Pyx_XDECREF(((PyObject *)__pyx_v_als4));
+                __pyx_v_als4 = ((struct __pyx_obj_3_sa_IntList *)__pyx_t_2);
                 __pyx_t_2 = 0;
 
-                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1779
+                /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1775
  *                                 for phrase2, eindexes in phrase_list:
  *                                     als4 = self.create_alignments(sent_links,num_links,self.findexes,eindexes)
  *                                     extracts.append((fphr, phrase2, pair_count, tuple(als4)))             # <<<<<<<<<<<<<<
  *             else:
  *                 reason_for_failure = "Unable to extract basic phrase"
  */
-                __pyx_t_2 = PyFloat_FromDouble(__pyx_v_pair_count); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1779; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_2 = PyFloat_FromDouble(__pyx_v_pair_count); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1775; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_2);
-                __pyx_t_15 = PyTuple_New(1); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1779; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_15 = PyTuple_New(1); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1775; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_15);
-                __Pyx_INCREF(__pyx_v_als4);
-                PyTuple_SET_ITEM(__pyx_t_15, 0, __pyx_v_als4);
-                __Pyx_GIVEREF(__pyx_v_als4);
-                __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)(&PyTuple_Type))), ((PyObject *)__pyx_t_15), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1779; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __Pyx_INCREF(((PyObject *)__pyx_v_als4));
+                PyTuple_SET_ITEM(__pyx_t_15, 0, ((PyObject *)__pyx_v_als4));
+                __Pyx_GIVEREF(((PyObject *)__pyx_v_als4));
+                __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)(&PyTuple_Type))), ((PyObject *)__pyx_t_15), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1775; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_1);
                 __Pyx_DECREF(((PyObject *)__pyx_t_15)); __pyx_t_15 = 0;
-                __pyx_t_15 = PyTuple_New(4); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1779; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_15 = PyTuple_New(4); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1775; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_15);
                 __Pyx_INCREF(((PyObject *)__pyx_v_fphr));
                 PyTuple_SET_ITEM(__pyx_t_15, 0, ((PyObject *)__pyx_v_fphr));
@@ -53953,7 +55693,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
                 __Pyx_GIVEREF(__pyx_t_1);
                 __pyx_t_2 = 0;
                 __pyx_t_1 = 0;
-                __pyx_t_1 = __Pyx_PyObject_Append(__pyx_v_extracts, ((PyObject *)__pyx_t_15)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1779; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_1 = __Pyx_PyObject_Append(__pyx_v_extracts, ((PyObject *)__pyx_t_15)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1775; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_1);
                 __Pyx_DECREF(((PyObject *)__pyx_t_15)); __pyx_t_15 = 0;
                 __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
@@ -53975,23 +55715,23 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
     }
     /*else*/ {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1781
+      /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1777
  *                                     extracts.append((fphr, phrase2, pair_count, tuple(als4)))
  *             else:
  *                 reason_for_failure = "Unable to extract basic phrase"             # <<<<<<<<<<<<<<
  * 
  *         free(sent_links)
  */
-      __Pyx_INCREF(((PyObject *)__pyx_kp_s_133));
+      __Pyx_INCREF(((PyObject *)__pyx_kp_s_135));
       __Pyx_DECREF(__pyx_v_reason_for_failure);
-      __pyx_v_reason_for_failure = ((PyObject *)__pyx_kp_s_133);
+      __pyx_v_reason_for_failure = ((PyObject *)__pyx_kp_s_135);
     }
     __pyx_L34:;
     goto __pyx_L33;
   }
   __pyx_L33:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1783
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1779
  *                 reason_for_failure = "Unable to extract basic phrase"
  * 
  *         free(sent_links)             # <<<<<<<<<<<<<<
@@ -54000,7 +55740,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
   free(__pyx_v_sent_links);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1784
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1780
  * 
  *         free(sent_links)
  *         free(f_links_low)             # <<<<<<<<<<<<<<
@@ -54009,7 +55749,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
   free(__pyx_v_f_links_low);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1785
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1781
  *         free(sent_links)
  *         free(f_links_low)
  *         free(f_links_high)             # <<<<<<<<<<<<<<
@@ -54018,7 +55758,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
   free(__pyx_v_f_links_high);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1786
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1782
  *         free(f_links_low)
  *         free(f_links_high)
  *         free(e_links_low)             # <<<<<<<<<<<<<<
@@ -54027,7 +55767,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
   free(__pyx_v_e_links_low);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1787
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1783
  *         free(f_links_high)
  *         free(e_links_low)
  *         free(e_links_high)             # <<<<<<<<<<<<<<
@@ -54036,7 +55776,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
   free(__pyx_v_e_links_high);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1788
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1784
  *         free(e_links_low)
  *         free(e_links_high)
  *         free(f_gap_low)             # <<<<<<<<<<<<<<
@@ -54045,7 +55785,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
   free(__pyx_v_f_gap_low);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1789
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1785
  *         free(e_links_high)
  *         free(f_gap_low)
  *         free(f_gap_high)             # <<<<<<<<<<<<<<
@@ -54054,7 +55794,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
   free(__pyx_v_f_gap_high);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1790
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1786
  *         free(f_gap_low)
  *         free(f_gap_high)
  *         free(e_gap_low)             # <<<<<<<<<<<<<<
@@ -54063,7 +55803,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
   free(__pyx_v_e_gap_low);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1791
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1787
  *         free(f_gap_high)
  *         free(e_gap_low)
  *         free(e_gap_high)             # <<<<<<<<<<<<<<
@@ -54072,7 +55812,7 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
  */
   free(__pyx_v_e_gap_high);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1793
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1789
  *         free(e_gap_high)
  * 
  *         return extracts             # <<<<<<<<<<<<<<
@@ -54103,41 +55843,41 @@ static PyObject *__pyx_f_3_sa_23HieroCachingRuleFactory_extract(struct __pyx_obj
   __Pyx_XDECREF(__pyx_v_al);
   __Pyx_XDECREF(__pyx_v_phrase2);
   __Pyx_XDECREF(__pyx_v_eindexes);
-  __Pyx_XDECREF(__pyx_v_als1);
-  __Pyx_XDECREF(__pyx_v_als2);
-  __Pyx_XDECREF(__pyx_v_als3);
-  __Pyx_XDECREF(__pyx_v_als4);
+  __Pyx_XDECREF((PyObject *)__pyx_v_als1);
+  __Pyx_XDECREF((PyObject *)__pyx_v_als2);
+  __Pyx_XDECREF((PyObject *)__pyx_v_als3);
+  __Pyx_XDECREF((PyObject *)__pyx_v_als4);
   __Pyx_XGIVEREF(__pyx_r);
   __Pyx_RefNannyFinishContext();
   return __pyx_r;
 }
-static struct __pyx_vtabstruct_3_sa_Phrase __pyx_vtable_3_sa_Phrase;
+static struct __pyx_vtabstruct_3_sa_FloatList __pyx_vtable_3_sa_FloatList;
 
-static PyObject *__pyx_tp_new_3_sa_Phrase(PyTypeObject *t, PyObject *a, PyObject *k) {
-  struct __pyx_obj_3_sa_Phrase *p;
+static PyObject *__pyx_tp_new_3_sa_FloatList(PyTypeObject *t, PyObject *a, PyObject *k) {
+  struct __pyx_obj_3_sa_FloatList *p;
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
-  p = ((struct __pyx_obj_3_sa_Phrase *)o);
-  p->__pyx_vtab = __pyx_vtabptr_3_sa_Phrase;
-  if (__pyx_pw_3_sa_6Phrase_1__cinit__(o, a, k) < 0) {
+  p = ((struct __pyx_obj_3_sa_FloatList *)o);
+  p->__pyx_vtab = __pyx_vtabptr_3_sa_FloatList;
+  if (__pyx_pw_3_sa_9FloatList_1__cinit__(o, a, k) < 0) {
     Py_DECREF(o); o = 0;
   }
   return o;
 }
 
-static void __pyx_tp_dealloc_3_sa_Phrase(PyObject *o) {
+static void __pyx_tp_dealloc_3_sa_FloatList(PyObject *o) {
   {
     PyObject *etype, *eval, *etb;
     PyErr_Fetch(&etype, &eval, &etb);
     ++Py_REFCNT(o);
-    __pyx_pw_3_sa_6Phrase_3__dealloc__(o);
+    __pyx_pw_3_sa_9FloatList_3__dealloc__(o);
     if (PyErr_Occurred()) PyErr_WriteUnraisable(o);
     --Py_REFCNT(o);
     PyErr_Restore(etype, eval, etb);
   }
   (*Py_TYPE(o)->tp_free)(o);
 }
-static PyObject *__pyx_sq_item_3_sa_Phrase(PyObject *o, Py_ssize_t i) {
+static PyObject *__pyx_sq_item_3_sa_FloatList(PyObject *o, Py_ssize_t i) {
   PyObject *r;
   PyObject *x = PyInt_FromSsize_t(i); if(!x) return 0;
   r = Py_TYPE(o)->tp_as_mapping->mp_subscript(o, x);
@@ -54145,28 +55885,25 @@ static PyObject *__pyx_sq_item_3_sa_Phrase(PyObject *o, Py_ssize_t i) {
   return r;
 }
 
-static PyObject *__pyx_getprop_3_sa_6Phrase_words(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_3_sa_6Phrase_5words_1__get__(o);
+static int __pyx_mp_ass_subscript_3_sa_FloatList(PyObject *o, PyObject *i, PyObject *v) {
+  if (v) {
+    return __pyx_pw_3_sa_9FloatList_7__setitem__(o, i, v);
+  }
+  else {
+    PyErr_Format(PyExc_NotImplementedError,
+      "Subscript deletion not supported by %s", Py_TYPE(o)->tp_name);
+    return -1;
+  }
 }
 
-static PyMethodDef __pyx_methods_3_sa_Phrase[] = {
-  {__Pyx_NAMESTR("handle"), (PyCFunction)__pyx_pw_3_sa_6Phrase_7handle, METH_NOARGS, __Pyx_DOCSTR(__pyx_doc_3_sa_6Phrase_6handle)},
-  {__Pyx_NAMESTR("strhandle"), (PyCFunction)__pyx_pw_3_sa_6Phrase_9strhandle, METH_NOARGS, __Pyx_DOCSTR(0)},
-  {__Pyx_NAMESTR("arity"), (PyCFunction)__pyx_pw_3_sa_6Phrase_11arity, METH_NOARGS, __Pyx_DOCSTR(0)},
-  {__Pyx_NAMESTR("getvarpos"), (PyCFunction)__pyx_pw_3_sa_6Phrase_13getvarpos, METH_O, __Pyx_DOCSTR(0)},
-  {__Pyx_NAMESTR("getvar"), (PyCFunction)__pyx_pw_3_sa_6Phrase_15getvar, METH_O, __Pyx_DOCSTR(0)},
-  {__Pyx_NAMESTR("clen"), (PyCFunction)__pyx_pw_3_sa_6Phrase_17clen, METH_O, __Pyx_DOCSTR(0)},
-  {__Pyx_NAMESTR("getchunk"), (PyCFunction)__pyx_pw_3_sa_6Phrase_19getchunk, METH_O, __Pyx_DOCSTR(0)},
-  {__Pyx_NAMESTR("subst"), (PyCFunction)__pyx_pw_3_sa_6Phrase_32subst, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)},
+static PyMethodDef __pyx_methods_3_sa_FloatList[] = {
+  {__Pyx_NAMESTR("append"), (PyCFunction)__pyx_pw_3_sa_9FloatList_11append, METH_O, __Pyx_DOCSTR(0)},
+  {__Pyx_NAMESTR("write"), (PyCFunction)__pyx_pw_3_sa_9FloatList_13write, METH_O, __Pyx_DOCSTR(0)},
+  {__Pyx_NAMESTR("read"), (PyCFunction)__pyx_pw_3_sa_9FloatList_15read, METH_O, __Pyx_DOCSTR(0)},
   {0, 0, 0, 0}
 };
 
-static struct PyGetSetDef __pyx_getsets_3_sa_Phrase[] = {
-  {(char *)"words", __pyx_getprop_3_sa_6Phrase_words, 0, 0, 0},
-  {0, 0, 0, 0, 0}
-};
-
-static PyNumberMethods __pyx_tp_as_number_Phrase = {
+static PyNumberMethods __pyx_tp_as_number_FloatList = {
   0, /*nb_add*/
   0, /*nb_subtract*/
   0, /*nb_multiply*/
@@ -54224,11 +55961,11 @@ static PyNumberMethods __pyx_tp_as_number_Phrase = {
   #endif
 };
 
-static PySequenceMethods __pyx_tp_as_sequence_Phrase = {
-  __pyx_pw_3_sa_6Phrase_25__len__, /*sq_length*/
+static PySequenceMethods __pyx_tp_as_sequence_FloatList = {
+  __pyx_pw_3_sa_9FloatList_9__len__, /*sq_length*/
   0, /*sq_concat*/
   0, /*sq_repeat*/
-  __pyx_sq_item_3_sa_Phrase, /*sq_item*/
+  __pyx_sq_item_3_sa_FloatList, /*sq_item*/
   0, /*sq_slice*/
   0, /*sq_ass_item*/
   0, /*sq_ass_slice*/
@@ -54237,13 +55974,13 @@ static PySequenceMethods __pyx_tp_as_sequence_Phrase = {
   0, /*sq_inplace_repeat*/
 };
 
-static PyMappingMethods __pyx_tp_as_mapping_Phrase = {
-  __pyx_pw_3_sa_6Phrase_25__len__, /*mp_length*/
-  __pyx_pw_3_sa_6Phrase_27__getitem__, /*mp_subscript*/
-  0, /*mp_ass_subscript*/
+static PyMappingMethods __pyx_tp_as_mapping_FloatList = {
+  __pyx_pw_3_sa_9FloatList_9__len__, /*mp_length*/
+  __pyx_pw_3_sa_9FloatList_5__getitem__, /*mp_subscript*/
+  __pyx_mp_ass_subscript_3_sa_FloatList, /*mp_ass_subscript*/
 };
 
-static PyBufferProcs __pyx_tp_as_buffer_Phrase = {
+static PyBufferProcs __pyx_tp_as_buffer_FloatList = {
   #if PY_MAJOR_VERSION < 3
   0, /*bf_getreadbuffer*/
   #endif
@@ -54264,41 +56001,41 @@ static PyBufferProcs __pyx_tp_as_buffer_Phrase = {
   #endif
 };
 
-static PyTypeObject __pyx_type_3_sa_Phrase = {
+static PyTypeObject __pyx_type_3_sa_FloatList = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_sa.Phrase"), /*tp_name*/
-  sizeof(struct __pyx_obj_3_sa_Phrase), /*tp_basicsize*/
+  __Pyx_NAMESTR("_sa.FloatList"), /*tp_name*/
+  sizeof(struct __pyx_obj_3_sa_FloatList), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_3_sa_Phrase, /*tp_dealloc*/
+  __pyx_tp_dealloc_3_sa_FloatList, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
   #if PY_MAJOR_VERSION < 3
-  __pyx_pw_3_sa_6Phrase_21__cmp__, /*tp_compare*/
+  0, /*tp_compare*/
   #else
   0, /*reserved*/
   #endif
   0, /*tp_repr*/
-  &__pyx_tp_as_number_Phrase, /*tp_as_number*/
-  &__pyx_tp_as_sequence_Phrase, /*tp_as_sequence*/
-  &__pyx_tp_as_mapping_Phrase, /*tp_as_mapping*/
-  __pyx_pw_3_sa_6Phrase_23__hash__, /*tp_hash*/
+  &__pyx_tp_as_number_FloatList, /*tp_as_number*/
+  &__pyx_tp_as_sequence_FloatList, /*tp_as_sequence*/
+  &__pyx_tp_as_mapping_FloatList, /*tp_as_mapping*/
+  0, /*tp_hash*/
   0, /*tp_call*/
-  __pyx_pw_3_sa_6Phrase_5__str__, /*tp_str*/
+  0, /*tp_str*/
   0, /*tp_getattro*/
   0, /*tp_setattro*/
-  &__pyx_tp_as_buffer_Phrase, /*tp_as_buffer*/
+  &__pyx_tp_as_buffer_FloatList, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE, /*tp_flags*/
   0, /*tp_doc*/
   0, /*tp_traverse*/
   0, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
-  __pyx_pw_3_sa_6Phrase_29__iter__, /*tp_iter*/
+  0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_3_sa_Phrase, /*tp_methods*/
+  __pyx_methods_3_sa_FloatList, /*tp_methods*/
   0, /*tp_members*/
-  __pyx_getsets_3_sa_Phrase, /*tp_getset*/
+  0, /*tp_getset*/
   0, /*tp_base*/
   0, /*tp_dict*/
   0, /*tp_descr_get*/
@@ -54306,7 +56043,7 @@ static PyTypeObject __pyx_type_3_sa_Phrase = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_3_sa_Phrase, /*tp_new*/
+  __pyx_tp_new_3_sa_FloatList, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -54319,133 +56056,269 @@ static PyTypeObject __pyx_type_3_sa_Phrase = {
   0, /*tp_version_tag*/
   #endif
 };
+static struct __pyx_vtabstruct_3_sa_IntList __pyx_vtable_3_sa_IntList;
 
-static PyObject *__pyx_tp_new_3_sa_Rule(PyTypeObject *t, PyObject *a, PyObject *k) {
-  struct __pyx_obj_3_sa_Rule *p;
+static PyObject *__pyx_tp_new_3_sa_IntList(PyTypeObject *t, PyObject *a, PyObject *k) {
+  struct __pyx_obj_3_sa_IntList *p;
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
-  p = ((struct __pyx_obj_3_sa_Rule *)o);
-  p->f = ((struct __pyx_obj_3_sa_Phrase *)Py_None); Py_INCREF(Py_None);
-  p->e = ((struct __pyx_obj_3_sa_Phrase *)Py_None); Py_INCREF(Py_None);
-  p->word_alignments = Py_None; Py_INCREF(Py_None);
-  if (__pyx_pw_3_sa_4Rule_1__cinit__(o, a, k) < 0) {
+  p = ((struct __pyx_obj_3_sa_IntList *)o);
+  p->__pyx_vtab = __pyx_vtabptr_3_sa_IntList;
+  if (__pyx_pw_3_sa_7IntList_1__cinit__(o, a, k) < 0) {
     Py_DECREF(o); o = 0;
   }
   return o;
 }
 
-static void __pyx_tp_dealloc_3_sa_Rule(PyObject *o) {
-  struct __pyx_obj_3_sa_Rule *p = (struct __pyx_obj_3_sa_Rule *)o;
+static void __pyx_tp_dealloc_3_sa_IntList(PyObject *o) {
   {
     PyObject *etype, *eval, *etb;
     PyErr_Fetch(&etype, &eval, &etb);
     ++Py_REFCNT(o);
-    __pyx_pw_3_sa_4Rule_3__dealloc__(o);
+    __pyx_pw_3_sa_7IntList_15__dealloc__(o);
     if (PyErr_Occurred()) PyErr_WriteUnraisable(o);
     --Py_REFCNT(o);
     PyErr_Restore(etype, eval, etb);
   }
-  Py_XDECREF(((PyObject *)p->f));
-  Py_XDECREF(((PyObject *)p->e));
-  Py_XDECREF(p->word_alignments);
   (*Py_TYPE(o)->tp_free)(o);
 }
-
-static int __pyx_tp_traverse_3_sa_Rule(PyObject *o, visitproc v, void *a) {
-  int e;
-  struct __pyx_obj_3_sa_Rule *p = (struct __pyx_obj_3_sa_Rule *)o;
-  if (p->f) {
-    e = (*v)(((PyObject*)p->f), a); if (e) return e;
-  }
-  if (p->e) {
-    e = (*v)(((PyObject*)p->e), a); if (e) return e;
-  }
-  if (p->word_alignments) {
-    e = (*v)(p->word_alignments, a); if (e) return e;
-  }
-  return 0;
-}
-
-static int __pyx_tp_clear_3_sa_Rule(PyObject *o) {
-  struct __pyx_obj_3_sa_Rule *p = (struct __pyx_obj_3_sa_Rule *)o;
-  PyObject* tmp;
-  tmp = ((PyObject*)p->f);
-  p->f = ((struct __pyx_obj_3_sa_Phrase *)Py_None); Py_INCREF(Py_None);
-  Py_XDECREF(tmp);
-  tmp = ((PyObject*)p->e);
-  p->e = ((struct __pyx_obj_3_sa_Phrase *)Py_None); Py_INCREF(Py_None);
-  Py_XDECREF(tmp);
-  tmp = ((PyObject*)p->word_alignments);
-  p->word_alignments = Py_None; Py_INCREF(Py_None);
-  Py_XDECREF(tmp);
-  return 0;
-}
-
-static PyObject *__pyx_getprop_3_sa_4Rule_scores(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_3_sa_4Rule_6scores_1__get__(o);
+static PyObject *__pyx_sq_item_3_sa_IntList(PyObject *o, Py_ssize_t i) {
+  PyObject *r;
+  PyObject *x = PyInt_FromSsize_t(i); if(!x) return 0;
+  r = Py_TYPE(o)->tp_as_mapping->mp_subscript(o, x);
+  Py_DECREF(x);
+  return r;
 }
 
-static int __pyx_setprop_3_sa_4Rule_scores(PyObject *o, PyObject *v, CYTHON_UNUSED void *x) {
+static int __pyx_mp_ass_subscript_3_sa_IntList(PyObject *o, PyObject *i, PyObject *v) {
   if (v) {
-    return __pyx_pw_3_sa_4Rule_6scores_3__set__(o, v);
+    return __pyx_pw_3_sa_7IntList_22__setitem__(o, i, v);
   }
   else {
-    PyErr_SetString(PyExc_NotImplementedError, "__del__");
+    PyErr_Format(PyExc_NotImplementedError,
+      "Subscript deletion not supported by %s", Py_TYPE(o)->tp_name);
     return -1;
   }
 }
 
-static PyObject *__pyx_getprop_3_sa_4Rule_lhs(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_3_sa_4Rule_3lhs_1__get__(o);
-}
+static PyMethodDef __pyx_methods_3_sa_IntList[] = {
+  {__Pyx_NAMESTR("index"), (PyCFunction)__pyx_pw_3_sa_7IntList_5index, METH_O, __Pyx_DOCSTR(0)},
+  {__Pyx_NAMESTR("partition"), (PyCFunction)__pyx_pw_3_sa_7IntList_7partition, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)},
+  {__Pyx_NAMESTR("_doquicksort"), (PyCFunction)__pyx_pw_3_sa_7IntList_9_doquicksort, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)},
+  {__Pyx_NAMESTR("sort"), (PyCFunction)__pyx_pw_3_sa_7IntList_11sort, METH_NOARGS, __Pyx_DOCSTR(0)},
+  {__Pyx_NAMESTR("reset"), (PyCFunction)__pyx_pw_3_sa_7IntList_13reset, METH_NOARGS, __Pyx_DOCSTR(0)},
+  {__Pyx_NAMESTR("getSize"), (PyCFunction)__pyx_pw_3_sa_7IntList_26getSize, METH_NOARGS, __Pyx_DOCSTR(0)},
+  {__Pyx_NAMESTR("append"), (PyCFunction)__pyx_pw_3_sa_7IntList_28append, METH_O, __Pyx_DOCSTR(0)},
+  {__Pyx_NAMESTR("extend"), (PyCFunction)__pyx_pw_3_sa_7IntList_30extend, METH_O, __Pyx_DOCSTR(0)},
+  {__Pyx_NAMESTR("write"), (PyCFunction)__pyx_pw_3_sa_7IntList_32write, METH_O, __Pyx_DOCSTR(0)},
+  {__Pyx_NAMESTR("read"), (PyCFunction)__pyx_pw_3_sa_7IntList_34read, METH_O, __Pyx_DOCSTR(0)},
+  {0, 0, 0, 0}
+};
 
-static int __pyx_setprop_3_sa_4Rule_lhs(PyObject *o, PyObject *v, CYTHON_UNUSED void *x) {
-  if (v) {
-    return __pyx_pw_3_sa_4Rule_3lhs_3__set__(o, v);
-  }
-  else {
-    PyErr_SetString(PyExc_NotImplementedError, "__del__");
-    return -1;
-  }
-}
+static PyNumberMethods __pyx_tp_as_number_IntList = {
+  0, /*nb_add*/
+  0, /*nb_subtract*/
+  0, /*nb_multiply*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_divide*/
+  #endif
+  0, /*nb_remainder*/
+  0, /*nb_divmod*/
+  0, /*nb_power*/
+  0, /*nb_negative*/
+  0, /*nb_positive*/
+  0, /*nb_absolute*/
+  0, /*nb_nonzero*/
+  0, /*nb_invert*/
+  0, /*nb_lshift*/
+  0, /*nb_rshift*/
+  0, /*nb_and*/
+  0, /*nb_xor*/
+  0, /*nb_or*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_coerce*/
+  #endif
+  0, /*nb_int*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_long*/
+  #else
+  0, /*reserved*/
+  #endif
+  0, /*nb_float*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_oct*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_hex*/
+  #endif
+  0, /*nb_inplace_add*/
+  0, /*nb_inplace_subtract*/
+  0, /*nb_inplace_multiply*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_inplace_divide*/
+  #endif
+  0, /*nb_inplace_remainder*/
+  0, /*nb_inplace_power*/
+  0, /*nb_inplace_lshift*/
+  0, /*nb_inplace_rshift*/
+  0, /*nb_inplace_and*/
+  0, /*nb_inplace_xor*/
+  0, /*nb_inplace_or*/
+  0, /*nb_floor_divide*/
+  0, /*nb_true_divide*/
+  0, /*nb_inplace_floor_divide*/
+  0, /*nb_inplace_true_divide*/
+  #if PY_VERSION_HEX >= 0x02050000
+  0, /*nb_index*/
+  #endif
+};
 
-static PyObject *__pyx_getprop_3_sa_4Rule_f(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_3_sa_4Rule_1f_1__get__(o);
-}
+static PySequenceMethods __pyx_tp_as_sequence_IntList = {
+  __pyx_pw_3_sa_7IntList_24__len__, /*sq_length*/
+  0, /*sq_concat*/
+  0, /*sq_repeat*/
+  __pyx_sq_item_3_sa_IntList, /*sq_item*/
+  0, /*sq_slice*/
+  0, /*sq_ass_item*/
+  0, /*sq_ass_slice*/
+  0, /*sq_contains*/
+  0, /*sq_inplace_concat*/
+  0, /*sq_inplace_repeat*/
+};
 
-static PyObject *__pyx_getprop_3_sa_4Rule_e(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_3_sa_4Rule_1e_1__get__(o);
+static PyMappingMethods __pyx_tp_as_mapping_IntList = {
+  __pyx_pw_3_sa_7IntList_24__len__, /*mp_length*/
+  __pyx_pw_3_sa_7IntList_20__getitem__, /*mp_subscript*/
+  __pyx_mp_ass_subscript_3_sa_IntList, /*mp_ass_subscript*/
+};
+
+static PyBufferProcs __pyx_tp_as_buffer_IntList = {
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getreadbuffer*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getwritebuffer*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getsegcount*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getcharbuffer*/
+  #endif
+  #if PY_VERSION_HEX >= 0x02060000
+  0, /*bf_getbuffer*/
+  #endif
+  #if PY_VERSION_HEX >= 0x02060000
+  0, /*bf_releasebuffer*/
+  #endif
+};
+
+static PyTypeObject __pyx_type_3_sa_IntList = {
+  PyVarObject_HEAD_INIT(0, 0)
+  __Pyx_NAMESTR("_sa.IntList"), /*tp_name*/
+  sizeof(struct __pyx_obj_3_sa_IntList), /*tp_basicsize*/
+  0, /*tp_itemsize*/
+  __pyx_tp_dealloc_3_sa_IntList, /*tp_dealloc*/
+  0, /*tp_print*/
+  0, /*tp_getattr*/
+  0, /*tp_setattr*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*tp_compare*/
+  #else
+  0, /*reserved*/
+  #endif
+  0, /*tp_repr*/
+  &__pyx_tp_as_number_IntList, /*tp_as_number*/
+  &__pyx_tp_as_sequence_IntList, /*tp_as_sequence*/
+  &__pyx_tp_as_mapping_IntList, /*tp_as_mapping*/
+  0, /*tp_hash*/
+  0, /*tp_call*/
+  __pyx_pw_3_sa_7IntList_3__str__, /*tp_str*/
+  0, /*tp_getattro*/
+  0, /*tp_setattro*/
+  &__pyx_tp_as_buffer_IntList, /*tp_as_buffer*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE, /*tp_flags*/
+  0, /*tp_doc*/
+  0, /*tp_traverse*/
+  0, /*tp_clear*/
+  0, /*tp_richcompare*/
+  0, /*tp_weaklistoffset*/
+  __pyx_pw_3_sa_7IntList_17__iter__, /*tp_iter*/
+  0, /*tp_iternext*/
+  __pyx_methods_3_sa_IntList, /*tp_methods*/
+  0, /*tp_members*/
+  0, /*tp_getset*/
+  0, /*tp_base*/
+  0, /*tp_dict*/
+  0, /*tp_descr_get*/
+  0, /*tp_descr_set*/
+  0, /*tp_dictoffset*/
+  0, /*tp_init*/
+  0, /*tp_alloc*/
+  __pyx_tp_new_3_sa_IntList, /*tp_new*/
+  0, /*tp_free*/
+  0, /*tp_is_gc*/
+  0, /*tp_bases*/
+  0, /*tp_mro*/
+  0, /*tp_cache*/
+  0, /*tp_subclasses*/
+  0, /*tp_weaklist*/
+  0, /*tp_del*/
+  #if PY_VERSION_HEX >= 0x02060000
+  0, /*tp_version_tag*/
+  #endif
+};
+
+static PyObject *__pyx_tp_new_3_sa_FeatureVector(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_3_sa_FeatureVector *p;
+  PyObject *o = (*t->tp_alloc)(t, 0);
+  if (!o) return 0;
+  p = ((struct __pyx_obj_3_sa_FeatureVector *)o);
+  p->names = ((struct __pyx_obj_3_sa_IntList *)Py_None); Py_INCREF(Py_None);
+  p->values = ((struct __pyx_obj_3_sa_FloatList *)Py_None); Py_INCREF(Py_None);
+  if (__pyx_pw_3_sa_13FeatureVector_1__cinit__(o, __pyx_empty_tuple, NULL) < 0) {
+    Py_DECREF(o); o = 0;
+  }
+  return o;
 }
 
-static PyObject *__pyx_getprop_3_sa_4Rule_word_alignments(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_3_sa_4Rule_15word_alignments_1__get__(o);
+static void __pyx_tp_dealloc_3_sa_FeatureVector(PyObject *o) {
+  struct __pyx_obj_3_sa_FeatureVector *p = (struct __pyx_obj_3_sa_FeatureVector *)o;
+  Py_XDECREF(((PyObject *)p->names));
+  Py_XDECREF(((PyObject *)p->values));
+  (*Py_TYPE(o)->tp_free)(o);
 }
 
-static int __pyx_setprop_3_sa_4Rule_word_alignments(PyObject *o, PyObject *v, CYTHON_UNUSED void *x) {
-  if (v) {
-    return __pyx_pw_3_sa_4Rule_15word_alignments_3__set__(o, v);
+static int __pyx_tp_traverse_3_sa_FeatureVector(PyObject *o, visitproc v, void *a) {
+  int e;
+  struct __pyx_obj_3_sa_FeatureVector *p = (struct __pyx_obj_3_sa_FeatureVector *)o;
+  if (p->names) {
+    e = (*v)(((PyObject*)p->names), a); if (e) return e;
   }
-  else {
-    return __pyx_pw_3_sa_4Rule_15word_alignments_5__del__(o);
+  if (p->values) {
+    e = (*v)(((PyObject*)p->values), a); if (e) return e;
   }
+  return 0;
 }
 
-static PyMethodDef __pyx_methods_3_sa_Rule[] = {
-  {__Pyx_NAMESTR("fmerge"), (PyCFunction)__pyx_pw_3_sa_4Rule_11fmerge, METH_O, __Pyx_DOCSTR(0)},
-  {__Pyx_NAMESTR("arity"), (PyCFunction)__pyx_pw_3_sa_4Rule_13arity, METH_NOARGS, __Pyx_DOCSTR(0)},
-  {0, 0, 0, 0}
-};
+static int __pyx_tp_clear_3_sa_FeatureVector(PyObject *o) {
+  struct __pyx_obj_3_sa_FeatureVector *p = (struct __pyx_obj_3_sa_FeatureVector *)o;
+  PyObject* tmp;
+  tmp = ((PyObject*)p->names);
+  p->names = ((struct __pyx_obj_3_sa_IntList *)Py_None); Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->values);
+  p->values = ((struct __pyx_obj_3_sa_FloatList *)Py_None); Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  return 0;
+}
 
-static struct PyGetSetDef __pyx_getsets_3_sa_Rule[] = {
-  {(char *)"scores", __pyx_getprop_3_sa_4Rule_scores, __pyx_setprop_3_sa_4Rule_scores, 0, 0},
-  {(char *)"lhs", __pyx_getprop_3_sa_4Rule_lhs, __pyx_setprop_3_sa_4Rule_lhs, 0, 0},
-  {(char *)"f", __pyx_getprop_3_sa_4Rule_f, 0, 0, 0},
-  {(char *)"e", __pyx_getprop_3_sa_4Rule_e, 0, 0, 0},
-  {(char *)"word_alignments", __pyx_getprop_3_sa_4Rule_word_alignments, __pyx_setprop_3_sa_4Rule_word_alignments, 0, 0},
-  {0, 0, 0, 0, 0}
+static PyMethodDef __pyx_methods_3_sa_FeatureVector[] = {
+  {__Pyx_NAMESTR("set"), (PyCFunction)__pyx_pw_3_sa_13FeatureVector_3set, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)},
+  {0, 0, 0, 0}
 };
 
-static PyNumberMethods __pyx_tp_as_number_Rule = {
+static PyNumberMethods __pyx_tp_as_number_FeatureVector = {
   0, /*nb_add*/
   0, /*nb_subtract*/
   0, /*nb_multiply*/
@@ -54481,7 +56354,7 @@ static PyNumberMethods __pyx_tp_as_number_Rule = {
   #if PY_MAJOR_VERSION < 3
   0, /*nb_hex*/
   #endif
-  __pyx_pw_3_sa_4Rule_9__iadd__, /*nb_inplace_add*/
+  0, /*nb_inplace_add*/
   0, /*nb_inplace_subtract*/
   0, /*nb_inplace_multiply*/
   #if PY_MAJOR_VERSION < 3
@@ -54503,7 +56376,7 @@ static PyNumberMethods __pyx_tp_as_number_Rule = {
   #endif
 };
 
-static PySequenceMethods __pyx_tp_as_sequence_Rule = {
+static PySequenceMethods __pyx_tp_as_sequence_FeatureVector = {
   0, /*sq_length*/
   0, /*sq_concat*/
   0, /*sq_repeat*/
@@ -54516,13 +56389,13 @@ static PySequenceMethods __pyx_tp_as_sequence_Rule = {
   0, /*sq_inplace_repeat*/
 };
 
-static PyMappingMethods __pyx_tp_as_mapping_Rule = {
+static PyMappingMethods __pyx_tp_as_mapping_FeatureVector = {
   0, /*mp_length*/
   0, /*mp_subscript*/
   0, /*mp_ass_subscript*/
 };
 
-static PyBufferProcs __pyx_tp_as_buffer_Rule = {
+static PyBufferProcs __pyx_tp_as_buffer_FeatureVector = {
   #if PY_MAJOR_VERSION < 3
   0, /*bf_getreadbuffer*/
   #endif
@@ -54543,41 +56416,41 @@ static PyBufferProcs __pyx_tp_as_buffer_Rule = {
   #endif
 };
 
-static PyTypeObject __pyx_type_3_sa_Rule = {
+static PyTypeObject __pyx_type_3_sa_FeatureVector = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_sa.Rule"), /*tp_name*/
-  sizeof(struct __pyx_obj_3_sa_Rule), /*tp_basicsize*/
+  __Pyx_NAMESTR("_sa.FeatureVector"), /*tp_name*/
+  sizeof(struct __pyx_obj_3_sa_FeatureVector), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_3_sa_Rule, /*tp_dealloc*/
+  __pyx_tp_dealloc_3_sa_FeatureVector, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
   #if PY_MAJOR_VERSION < 3
-  __pyx_pw_3_sa_4Rule_7__cmp__, /*tp_compare*/
+  0, /*tp_compare*/
   #else
   0, /*reserved*/
   #endif
   0, /*tp_repr*/
-  &__pyx_tp_as_number_Rule, /*tp_as_number*/
-  &__pyx_tp_as_sequence_Rule, /*tp_as_sequence*/
-  &__pyx_tp_as_mapping_Rule, /*tp_as_mapping*/
-  __pyx_pw_3_sa_4Rule_5__hash__, /*tp_hash*/
+  &__pyx_tp_as_number_FeatureVector, /*tp_as_number*/
+  &__pyx_tp_as_sequence_FeatureVector, /*tp_as_sequence*/
+  &__pyx_tp_as_mapping_FeatureVector, /*tp_as_mapping*/
+  0, /*tp_hash*/
   0, /*tp_call*/
-  __pyx_pw_3_sa_4Rule_15__str__, /*tp_str*/
+  __pyx_pw_3_sa_13FeatureVector_8__str__, /*tp_str*/
   0, /*tp_getattro*/
   0, /*tp_setattro*/
-  &__pyx_tp_as_buffer_Rule, /*tp_as_buffer*/
+  &__pyx_tp_as_buffer_FeatureVector, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_3_sa_Rule, /*tp_traverse*/
-  __pyx_tp_clear_3_sa_Rule, /*tp_clear*/
+  __pyx_tp_traverse_3_sa_FeatureVector, /*tp_traverse*/
+  __pyx_tp_clear_3_sa_FeatureVector, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
-  0, /*tp_iter*/
+  __pyx_pw_3_sa_13FeatureVector_5__iter__, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_3_sa_Rule, /*tp_methods*/
+  __pyx_methods_3_sa_FeatureVector, /*tp_methods*/
   0, /*tp_members*/
-  __pyx_getsets_3_sa_Rule, /*tp_getset*/
+  0, /*tp_getset*/
   0, /*tp_base*/
   0, /*tp_dict*/
   0, /*tp_descr_get*/
@@ -54585,7 +56458,7 @@ static PyTypeObject __pyx_type_3_sa_Rule = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_3_sa_Rule, /*tp_new*/
+  __pyx_tp_new_3_sa_FeatureVector, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -54598,33 +56471,33 @@ static PyTypeObject __pyx_type_3_sa_Rule = {
   0, /*tp_version_tag*/
   #endif
 };
-static struct __pyx_vtabstruct_3_sa_FloatList __pyx_vtable_3_sa_FloatList;
+static struct __pyx_vtabstruct_3_sa_Phrase __pyx_vtable_3_sa_Phrase;
 
-static PyObject *__pyx_tp_new_3_sa_FloatList(PyTypeObject *t, PyObject *a, PyObject *k) {
-  struct __pyx_obj_3_sa_FloatList *p;
+static PyObject *__pyx_tp_new_3_sa_Phrase(PyTypeObject *t, PyObject *a, PyObject *k) {
+  struct __pyx_obj_3_sa_Phrase *p;
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
-  p = ((struct __pyx_obj_3_sa_FloatList *)o);
-  p->__pyx_vtab = __pyx_vtabptr_3_sa_FloatList;
-  if (__pyx_pw_3_sa_9FloatList_1__cinit__(o, a, k) < 0) {
+  p = ((struct __pyx_obj_3_sa_Phrase *)o);
+  p->__pyx_vtab = __pyx_vtabptr_3_sa_Phrase;
+  if (__pyx_pw_3_sa_6Phrase_1__cinit__(o, a, k) < 0) {
     Py_DECREF(o); o = 0;
   }
   return o;
 }
 
-static void __pyx_tp_dealloc_3_sa_FloatList(PyObject *o) {
+static void __pyx_tp_dealloc_3_sa_Phrase(PyObject *o) {
   {
     PyObject *etype, *eval, *etb;
     PyErr_Fetch(&etype, &eval, &etb);
     ++Py_REFCNT(o);
-    __pyx_pw_3_sa_9FloatList_3__dealloc__(o);
+    __pyx_pw_3_sa_6Phrase_3__dealloc__(o);
     if (PyErr_Occurred()) PyErr_WriteUnraisable(o);
     --Py_REFCNT(o);
     PyErr_Restore(etype, eval, etb);
   }
   (*Py_TYPE(o)->tp_free)(o);
 }
-static PyObject *__pyx_sq_item_3_sa_FloatList(PyObject *o, Py_ssize_t i) {
+static PyObject *__pyx_sq_item_3_sa_Phrase(PyObject *o, Py_ssize_t i) {
   PyObject *r;
   PyObject *x = PyInt_FromSsize_t(i); if(!x) return 0;
   r = Py_TYPE(o)->tp_as_mapping->mp_subscript(o, x);
@@ -54632,25 +56505,28 @@ static PyObject *__pyx_sq_item_3_sa_FloatList(PyObject *o, Py_ssize_t i) {
   return r;
 }
 
-static int __pyx_mp_ass_subscript_3_sa_FloatList(PyObject *o, PyObject *i, PyObject *v) {
-  if (v) {
-    return __pyx_pw_3_sa_9FloatList_7__setitem__(o, i, v);
-  }
-  else {
-    PyErr_Format(PyExc_NotImplementedError,
-      "Subscript deletion not supported by %s", Py_TYPE(o)->tp_name);
-    return -1;
-  }
+static PyObject *__pyx_getprop_3_sa_6Phrase_words(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_3_sa_6Phrase_5words_1__get__(o);
 }
 
-static PyMethodDef __pyx_methods_3_sa_FloatList[] = {
-  {__Pyx_NAMESTR("append"), (PyCFunction)__pyx_pw_3_sa_9FloatList_11append, METH_O, __Pyx_DOCSTR(0)},
-  {__Pyx_NAMESTR("write"), (PyCFunction)__pyx_pw_3_sa_9FloatList_13write, METH_O, __Pyx_DOCSTR(0)},
-  {__Pyx_NAMESTR("read"), (PyCFunction)__pyx_pw_3_sa_9FloatList_15read, METH_O, __Pyx_DOCSTR(0)},
+static PyMethodDef __pyx_methods_3_sa_Phrase[] = {
+  {__Pyx_NAMESTR("handle"), (PyCFunction)__pyx_pw_3_sa_6Phrase_7handle, METH_NOARGS, __Pyx_DOCSTR(__pyx_doc_3_sa_6Phrase_6handle)},
+  {__Pyx_NAMESTR("strhandle"), (PyCFunction)__pyx_pw_3_sa_6Phrase_9strhandle, METH_NOARGS, __Pyx_DOCSTR(0)},
+  {__Pyx_NAMESTR("arity"), (PyCFunction)__pyx_pw_3_sa_6Phrase_11arity, METH_NOARGS, __Pyx_DOCSTR(0)},
+  {__Pyx_NAMESTR("getvarpos"), (PyCFunction)__pyx_pw_3_sa_6Phrase_13getvarpos, METH_O, __Pyx_DOCSTR(0)},
+  {__Pyx_NAMESTR("getvar"), (PyCFunction)__pyx_pw_3_sa_6Phrase_15getvar, METH_O, __Pyx_DOCSTR(0)},
+  {__Pyx_NAMESTR("clen"), (PyCFunction)__pyx_pw_3_sa_6Phrase_17clen, METH_O, __Pyx_DOCSTR(0)},
+  {__Pyx_NAMESTR("getchunk"), (PyCFunction)__pyx_pw_3_sa_6Phrase_19getchunk, METH_O, __Pyx_DOCSTR(0)},
+  {__Pyx_NAMESTR("subst"), (PyCFunction)__pyx_pw_3_sa_6Phrase_32subst, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)},
   {0, 0, 0, 0}
 };
 
-static PyNumberMethods __pyx_tp_as_number_FloatList = {
+static struct PyGetSetDef __pyx_getsets_3_sa_Phrase[] = {
+  {(char *)"words", __pyx_getprop_3_sa_6Phrase_words, 0, 0, 0},
+  {0, 0, 0, 0, 0}
+};
+
+static PyNumberMethods __pyx_tp_as_number_Phrase = {
   0, /*nb_add*/
   0, /*nb_subtract*/
   0, /*nb_multiply*/
@@ -54708,11 +56584,11 @@ static PyNumberMethods __pyx_tp_as_number_FloatList = {
   #endif
 };
 
-static PySequenceMethods __pyx_tp_as_sequence_FloatList = {
-  __pyx_pw_3_sa_9FloatList_9__len__, /*sq_length*/
+static PySequenceMethods __pyx_tp_as_sequence_Phrase = {
+  __pyx_pw_3_sa_6Phrase_25__len__, /*sq_length*/
   0, /*sq_concat*/
   0, /*sq_repeat*/
-  __pyx_sq_item_3_sa_FloatList, /*sq_item*/
+  __pyx_sq_item_3_sa_Phrase, /*sq_item*/
   0, /*sq_slice*/
   0, /*sq_ass_item*/
   0, /*sq_ass_slice*/
@@ -54721,13 +56597,13 @@ static PySequenceMethods __pyx_tp_as_sequence_FloatList = {
   0, /*sq_inplace_repeat*/
 };
 
-static PyMappingMethods __pyx_tp_as_mapping_FloatList = {
-  __pyx_pw_3_sa_9FloatList_9__len__, /*mp_length*/
-  __pyx_pw_3_sa_9FloatList_5__getitem__, /*mp_subscript*/
-  __pyx_mp_ass_subscript_3_sa_FloatList, /*mp_ass_subscript*/
+static PyMappingMethods __pyx_tp_as_mapping_Phrase = {
+  __pyx_pw_3_sa_6Phrase_25__len__, /*mp_length*/
+  __pyx_pw_3_sa_6Phrase_27__getitem__, /*mp_subscript*/
+  0, /*mp_ass_subscript*/
 };
 
-static PyBufferProcs __pyx_tp_as_buffer_FloatList = {
+static PyBufferProcs __pyx_tp_as_buffer_Phrase = {
   #if PY_MAJOR_VERSION < 3
   0, /*bf_getreadbuffer*/
   #endif
@@ -54748,41 +56624,41 @@ static PyBufferProcs __pyx_tp_as_buffer_FloatList = {
   #endif
 };
 
-static PyTypeObject __pyx_type_3_sa_FloatList = {
+static PyTypeObject __pyx_type_3_sa_Phrase = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_sa.FloatList"), /*tp_name*/
-  sizeof(struct __pyx_obj_3_sa_FloatList), /*tp_basicsize*/
+  __Pyx_NAMESTR("_sa.Phrase"), /*tp_name*/
+  sizeof(struct __pyx_obj_3_sa_Phrase), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_3_sa_FloatList, /*tp_dealloc*/
+  __pyx_tp_dealloc_3_sa_Phrase, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
   #if PY_MAJOR_VERSION < 3
-  0, /*tp_compare*/
+  __pyx_pw_3_sa_6Phrase_21__cmp__, /*tp_compare*/
   #else
   0, /*reserved*/
   #endif
   0, /*tp_repr*/
-  &__pyx_tp_as_number_FloatList, /*tp_as_number*/
-  &__pyx_tp_as_sequence_FloatList, /*tp_as_sequence*/
-  &__pyx_tp_as_mapping_FloatList, /*tp_as_mapping*/
-  0, /*tp_hash*/
+  &__pyx_tp_as_number_Phrase, /*tp_as_number*/
+  &__pyx_tp_as_sequence_Phrase, /*tp_as_sequence*/
+  &__pyx_tp_as_mapping_Phrase, /*tp_as_mapping*/
+  __pyx_pw_3_sa_6Phrase_23__hash__, /*tp_hash*/
   0, /*tp_call*/
-  0, /*tp_str*/
+  __pyx_pw_3_sa_6Phrase_5__str__, /*tp_str*/
   0, /*tp_getattro*/
   0, /*tp_setattro*/
-  &__pyx_tp_as_buffer_FloatList, /*tp_as_buffer*/
+  &__pyx_tp_as_buffer_Phrase, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE, /*tp_flags*/
   0, /*tp_doc*/
   0, /*tp_traverse*/
   0, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
-  0, /*tp_iter*/
+  __pyx_pw_3_sa_6Phrase_29__iter__, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_3_sa_FloatList, /*tp_methods*/
+  __pyx_methods_3_sa_Phrase, /*tp_methods*/
   0, /*tp_members*/
-  0, /*tp_getset*/
+  __pyx_getsets_3_sa_Phrase, /*tp_getset*/
   0, /*tp_base*/
   0, /*tp_dict*/
   0, /*tp_descr_get*/
@@ -54790,7 +56666,7 @@ static PyTypeObject __pyx_type_3_sa_FloatList = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_3_sa_FloatList, /*tp_new*/
+  __pyx_tp_new_3_sa_Phrase, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -54803,66 +56679,89 @@ static PyTypeObject __pyx_type_3_sa_FloatList = {
   0, /*tp_version_tag*/
   #endif
 };
-static struct __pyx_vtabstruct_3_sa_IntList __pyx_vtable_3_sa_IntList;
 
-static PyObject *__pyx_tp_new_3_sa_IntList(PyTypeObject *t, PyObject *a, PyObject *k) {
-  struct __pyx_obj_3_sa_IntList *p;
+static PyObject *__pyx_tp_new_3_sa_Rule(PyTypeObject *t, PyObject *a, PyObject *k) {
+  struct __pyx_obj_3_sa_Rule *p;
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
-  p = ((struct __pyx_obj_3_sa_IntList *)o);
-  p->__pyx_vtab = __pyx_vtabptr_3_sa_IntList;
-  if (__pyx_pw_3_sa_7IntList_1__cinit__(o, a, k) < 0) {
+  p = ((struct __pyx_obj_3_sa_Rule *)o);
+  p->f = ((struct __pyx_obj_3_sa_Phrase *)Py_None); Py_INCREF(Py_None);
+  p->e = ((struct __pyx_obj_3_sa_Phrase *)Py_None); Py_INCREF(Py_None);
+  p->scores = ((struct __pyx_obj_3_sa_FeatureVector *)Py_None); Py_INCREF(Py_None);
+  p->word_alignments = Py_None; Py_INCREF(Py_None);
+  if (__pyx_pw_3_sa_4Rule_1__cinit__(o, a, k) < 0) {
     Py_DECREF(o); o = 0;
   }
   return o;
 }
 
-static void __pyx_tp_dealloc_3_sa_IntList(PyObject *o) {
-  {
-    PyObject *etype, *eval, *etb;
-    PyErr_Fetch(&etype, &eval, &etb);
-    ++Py_REFCNT(o);
-    __pyx_pw_3_sa_7IntList_15__dealloc__(o);
-    if (PyErr_Occurred()) PyErr_WriteUnraisable(o);
-    --Py_REFCNT(o);
-    PyErr_Restore(etype, eval, etb);
-  }
+static void __pyx_tp_dealloc_3_sa_Rule(PyObject *o) {
+  struct __pyx_obj_3_sa_Rule *p = (struct __pyx_obj_3_sa_Rule *)o;
+  Py_XDECREF(((PyObject *)p->f));
+  Py_XDECREF(((PyObject *)p->e));
+  Py_XDECREF(((PyObject *)p->scores));
+  Py_XDECREF(p->word_alignments);
   (*Py_TYPE(o)->tp_free)(o);
 }
-static PyObject *__pyx_sq_item_3_sa_IntList(PyObject *o, Py_ssize_t i) {
-  PyObject *r;
-  PyObject *x = PyInt_FromSsize_t(i); if(!x) return 0;
-  r = Py_TYPE(o)->tp_as_mapping->mp_subscript(o, x);
-  Py_DECREF(x);
-  return r;
-}
 
-static int __pyx_mp_ass_subscript_3_sa_IntList(PyObject *o, PyObject *i, PyObject *v) {
-  if (v) {
-    return __pyx_pw_3_sa_7IntList_19__setitem__(o, i, v);
+static int __pyx_tp_traverse_3_sa_Rule(PyObject *o, visitproc v, void *a) {
+  int e;
+  struct __pyx_obj_3_sa_Rule *p = (struct __pyx_obj_3_sa_Rule *)o;
+  if (p->f) {
+    e = (*v)(((PyObject*)p->f), a); if (e) return e;
   }
-  else {
-    PyErr_Format(PyExc_NotImplementedError,
-      "Subscript deletion not supported by %s", Py_TYPE(o)->tp_name);
-    return -1;
+  if (p->e) {
+    e = (*v)(((PyObject*)p->e), a); if (e) return e;
+  }
+  if (p->scores) {
+    e = (*v)(((PyObject*)p->scores), a); if (e) return e;
+  }
+  if (p->word_alignments) {
+    e = (*v)(p->word_alignments, a); if (e) return e;
   }
+  return 0;
 }
 
-static PyMethodDef __pyx_methods_3_sa_IntList[] = {
-  {__Pyx_NAMESTR("index"), (PyCFunction)__pyx_pw_3_sa_7IntList_5index, METH_O, __Pyx_DOCSTR(0)},
-  {__Pyx_NAMESTR("partition"), (PyCFunction)__pyx_pw_3_sa_7IntList_7partition, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)},
-  {__Pyx_NAMESTR("_doquicksort"), (PyCFunction)__pyx_pw_3_sa_7IntList_9_doquicksort, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)},
-  {__Pyx_NAMESTR("sort"), (PyCFunction)__pyx_pw_3_sa_7IntList_11sort, METH_NOARGS, __Pyx_DOCSTR(0)},
-  {__Pyx_NAMESTR("reset"), (PyCFunction)__pyx_pw_3_sa_7IntList_13reset, METH_NOARGS, __Pyx_DOCSTR(0)},
-  {__Pyx_NAMESTR("getSize"), (PyCFunction)__pyx_pw_3_sa_7IntList_23getSize, METH_NOARGS, __Pyx_DOCSTR(0)},
-  {__Pyx_NAMESTR("append"), (PyCFunction)__pyx_pw_3_sa_7IntList_25append, METH_O, __Pyx_DOCSTR(0)},
-  {__Pyx_NAMESTR("extend"), (PyCFunction)__pyx_pw_3_sa_7IntList_27extend, METH_O, __Pyx_DOCSTR(0)},
-  {__Pyx_NAMESTR("write"), (PyCFunction)__pyx_pw_3_sa_7IntList_29write, METH_O, __Pyx_DOCSTR(0)},
-  {__Pyx_NAMESTR("read"), (PyCFunction)__pyx_pw_3_sa_7IntList_31read, METH_O, __Pyx_DOCSTR(0)},
+static int __pyx_tp_clear_3_sa_Rule(PyObject *o) {
+  struct __pyx_obj_3_sa_Rule *p = (struct __pyx_obj_3_sa_Rule *)o;
+  PyObject* tmp;
+  tmp = ((PyObject*)p->f);
+  p->f = ((struct __pyx_obj_3_sa_Phrase *)Py_None); Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->e);
+  p->e = ((struct __pyx_obj_3_sa_Phrase *)Py_None); Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->scores);
+  p->scores = ((struct __pyx_obj_3_sa_FeatureVector *)Py_None); Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->word_alignments);
+  p->word_alignments = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  return 0;
+}
+
+static PyObject *__pyx_getprop_3_sa_4Rule_f(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_3_sa_4Rule_1f_1__get__(o);
+}
+
+static PyObject *__pyx_getprop_3_sa_4Rule_e(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_3_sa_4Rule_1e_1__get__(o);
+}
+
+static PyMethodDef __pyx_methods_3_sa_Rule[] = {
+  {__Pyx_NAMESTR("fmerge"), (PyCFunction)__pyx_pw_3_sa_4Rule_7fmerge, METH_O, __Pyx_DOCSTR(0)},
+  {__Pyx_NAMESTR("arity"), (PyCFunction)__pyx_pw_3_sa_4Rule_9arity, METH_NOARGS, __Pyx_DOCSTR(0)},
+  {__Pyx_NAMESTR("alignments"), (PyCFunction)__pyx_pw_3_sa_4Rule_13alignments, METH_NOARGS, __Pyx_DOCSTR(0)},
   {0, 0, 0, 0}
 };
 
-static PyNumberMethods __pyx_tp_as_number_IntList = {
+static struct PyGetSetDef __pyx_getsets_3_sa_Rule[] = {
+  {(char *)"f", __pyx_getprop_3_sa_4Rule_f, 0, 0, 0},
+  {(char *)"e", __pyx_getprop_3_sa_4Rule_e, 0, 0, 0},
+  {0, 0, 0, 0, 0}
+};
+
+static PyNumberMethods __pyx_tp_as_number_Rule = {
   0, /*nb_add*/
   0, /*nb_subtract*/
   0, /*nb_multiply*/
@@ -54920,11 +56819,11 @@ static PyNumberMethods __pyx_tp_as_number_IntList = {
   #endif
 };
 
-static PySequenceMethods __pyx_tp_as_sequence_IntList = {
-  __pyx_pw_3_sa_7IntList_21__len__, /*sq_length*/
+static PySequenceMethods __pyx_tp_as_sequence_Rule = {
+  0, /*sq_length*/
   0, /*sq_concat*/
   0, /*sq_repeat*/
-  __pyx_sq_item_3_sa_IntList, /*sq_item*/
+  0, /*sq_item*/
   0, /*sq_slice*/
   0, /*sq_ass_item*/
   0, /*sq_ass_slice*/
@@ -54933,13 +56832,13 @@ static PySequenceMethods __pyx_tp_as_sequence_IntList = {
   0, /*sq_inplace_repeat*/
 };
 
-static PyMappingMethods __pyx_tp_as_mapping_IntList = {
-  __pyx_pw_3_sa_7IntList_21__len__, /*mp_length*/
-  __pyx_pw_3_sa_7IntList_17__getitem__, /*mp_subscript*/
-  __pyx_mp_ass_subscript_3_sa_IntList, /*mp_ass_subscript*/
+static PyMappingMethods __pyx_tp_as_mapping_Rule = {
+  0, /*mp_length*/
+  0, /*mp_subscript*/
+  0, /*mp_ass_subscript*/
 };
 
-static PyBufferProcs __pyx_tp_as_buffer_IntList = {
+static PyBufferProcs __pyx_tp_as_buffer_Rule = {
   #if PY_MAJOR_VERSION < 3
   0, /*bf_getreadbuffer*/
   #endif
@@ -54960,41 +56859,41 @@ static PyBufferProcs __pyx_tp_as_buffer_IntList = {
   #endif
 };
 
-static PyTypeObject __pyx_type_3_sa_IntList = {
+static PyTypeObject __pyx_type_3_sa_Rule = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_sa.IntList"), /*tp_name*/
-  sizeof(struct __pyx_obj_3_sa_IntList), /*tp_basicsize*/
+  __Pyx_NAMESTR("_sa.Rule"), /*tp_name*/
+  sizeof(struct __pyx_obj_3_sa_Rule), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_3_sa_IntList, /*tp_dealloc*/
+  __pyx_tp_dealloc_3_sa_Rule, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
   #if PY_MAJOR_VERSION < 3
-  0, /*tp_compare*/
+  __pyx_pw_3_sa_4Rule_5__cmp__, /*tp_compare*/
   #else
   0, /*reserved*/
   #endif
   0, /*tp_repr*/
-  &__pyx_tp_as_number_IntList, /*tp_as_number*/
-  &__pyx_tp_as_sequence_IntList, /*tp_as_sequence*/
-  &__pyx_tp_as_mapping_IntList, /*tp_as_mapping*/
-  0, /*tp_hash*/
+  &__pyx_tp_as_number_Rule, /*tp_as_number*/
+  &__pyx_tp_as_sequence_Rule, /*tp_as_sequence*/
+  &__pyx_tp_as_mapping_Rule, /*tp_as_mapping*/
+  __pyx_pw_3_sa_4Rule_3__hash__, /*tp_hash*/
   0, /*tp_call*/
-  __pyx_pw_3_sa_7IntList_3__str__, /*tp_str*/
+  __pyx_pw_3_sa_4Rule_11__str__, /*tp_str*/
   0, /*tp_getattro*/
   0, /*tp_setattro*/
-  &__pyx_tp_as_buffer_IntList, /*tp_as_buffer*/
-  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE, /*tp_flags*/
+  &__pyx_tp_as_buffer_Rule, /*tp_as_buffer*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  0, /*tp_traverse*/
-  0, /*tp_clear*/
+  __pyx_tp_traverse_3_sa_Rule, /*tp_traverse*/
+  __pyx_tp_clear_3_sa_Rule, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_3_sa_IntList, /*tp_methods*/
+  __pyx_methods_3_sa_Rule, /*tp_methods*/
   0, /*tp_members*/
-  0, /*tp_getset*/
+  __pyx_getsets_3_sa_Rule, /*tp_getset*/
   0, /*tp_base*/
   0, /*tp_dict*/
   0, /*tp_descr_get*/
@@ -55002,7 +56901,7 @@ static PyTypeObject __pyx_type_3_sa_IntList = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_3_sa_IntList, /*tp_new*/
+  __pyx_tp_new_3_sa_Rule, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -57681,6 +59580,403 @@ static PyTypeObject __pyx_type_3_sa_SuffixArray = {
   0, /*tp_version_tag*/
   #endif
 };
+static struct __pyx_vtabstruct_3_sa_Scorer __pyx_vtable_3_sa_Scorer;
+
+static PyObject *__pyx_tp_new_3_sa_Scorer(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_3_sa_Scorer *p;
+  PyObject *o = (*t->tp_alloc)(t, 0);
+  if (!o) return 0;
+  p = ((struct __pyx_obj_3_sa_Scorer *)o);
+  p->__pyx_vtab = __pyx_vtabptr_3_sa_Scorer;
+  p->models = Py_None; Py_INCREF(Py_None);
+  return o;
+}
+
+static void __pyx_tp_dealloc_3_sa_Scorer(PyObject *o) {
+  struct __pyx_obj_3_sa_Scorer *p = (struct __pyx_obj_3_sa_Scorer *)o;
+  Py_XDECREF(p->models);
+  (*Py_TYPE(o)->tp_free)(o);
+}
+
+static int __pyx_tp_traverse_3_sa_Scorer(PyObject *o, visitproc v, void *a) {
+  int e;
+  struct __pyx_obj_3_sa_Scorer *p = (struct __pyx_obj_3_sa_Scorer *)o;
+  if (p->models) {
+    e = (*v)(p->models, a); if (e) return e;
+  }
+  return 0;
+}
+
+static int __pyx_tp_clear_3_sa_Scorer(PyObject *o) {
+  struct __pyx_obj_3_sa_Scorer *p = (struct __pyx_obj_3_sa_Scorer *)o;
+  PyObject* tmp;
+  tmp = ((PyObject*)p->models);
+  p->models = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  return 0;
+}
+
+static PyMethodDef __pyx_methods_3_sa_Scorer[] = {
+  {0, 0, 0, 0}
+};
+
+static PyNumberMethods __pyx_tp_as_number_Scorer = {
+  0, /*nb_add*/
+  0, /*nb_subtract*/
+  0, /*nb_multiply*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_divide*/
+  #endif
+  0, /*nb_remainder*/
+  0, /*nb_divmod*/
+  0, /*nb_power*/
+  0, /*nb_negative*/
+  0, /*nb_positive*/
+  0, /*nb_absolute*/
+  0, /*nb_nonzero*/
+  0, /*nb_invert*/
+  0, /*nb_lshift*/
+  0, /*nb_rshift*/
+  0, /*nb_and*/
+  0, /*nb_xor*/
+  0, /*nb_or*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_coerce*/
+  #endif
+  0, /*nb_int*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_long*/
+  #else
+  0, /*reserved*/
+  #endif
+  0, /*nb_float*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_oct*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_hex*/
+  #endif
+  0, /*nb_inplace_add*/
+  0, /*nb_inplace_subtract*/
+  0, /*nb_inplace_multiply*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_inplace_divide*/
+  #endif
+  0, /*nb_inplace_remainder*/
+  0, /*nb_inplace_power*/
+  0, /*nb_inplace_lshift*/
+  0, /*nb_inplace_rshift*/
+  0, /*nb_inplace_and*/
+  0, /*nb_inplace_xor*/
+  0, /*nb_inplace_or*/
+  0, /*nb_floor_divide*/
+  0, /*nb_true_divide*/
+  0, /*nb_inplace_floor_divide*/
+  0, /*nb_inplace_true_divide*/
+  #if PY_VERSION_HEX >= 0x02050000
+  0, /*nb_index*/
+  #endif
+};
+
+static PySequenceMethods __pyx_tp_as_sequence_Scorer = {
+  0, /*sq_length*/
+  0, /*sq_concat*/
+  0, /*sq_repeat*/
+  0, /*sq_item*/
+  0, /*sq_slice*/
+  0, /*sq_ass_item*/
+  0, /*sq_ass_slice*/
+  0, /*sq_contains*/
+  0, /*sq_inplace_concat*/
+  0, /*sq_inplace_repeat*/
+};
+
+static PyMappingMethods __pyx_tp_as_mapping_Scorer = {
+  0, /*mp_length*/
+  0, /*mp_subscript*/
+  0, /*mp_ass_subscript*/
+};
+
+static PyBufferProcs __pyx_tp_as_buffer_Scorer = {
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getreadbuffer*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getwritebuffer*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getsegcount*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getcharbuffer*/
+  #endif
+  #if PY_VERSION_HEX >= 0x02060000
+  0, /*bf_getbuffer*/
+  #endif
+  #if PY_VERSION_HEX >= 0x02060000
+  0, /*bf_releasebuffer*/
+  #endif
+};
+
+static PyTypeObject __pyx_type_3_sa_Scorer = {
+  PyVarObject_HEAD_INIT(0, 0)
+  __Pyx_NAMESTR("_sa.Scorer"), /*tp_name*/
+  sizeof(struct __pyx_obj_3_sa_Scorer), /*tp_basicsize*/
+  0, /*tp_itemsize*/
+  __pyx_tp_dealloc_3_sa_Scorer, /*tp_dealloc*/
+  0, /*tp_print*/
+  0, /*tp_getattr*/
+  0, /*tp_setattr*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*tp_compare*/
+  #else
+  0, /*reserved*/
+  #endif
+  0, /*tp_repr*/
+  &__pyx_tp_as_number_Scorer, /*tp_as_number*/
+  &__pyx_tp_as_sequence_Scorer, /*tp_as_sequence*/
+  &__pyx_tp_as_mapping_Scorer, /*tp_as_mapping*/
+  0, /*tp_hash*/
+  0, /*tp_call*/
+  0, /*tp_str*/
+  0, /*tp_getattro*/
+  0, /*tp_setattro*/
+  &__pyx_tp_as_buffer_Scorer, /*tp_as_buffer*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
+  0, /*tp_doc*/
+  __pyx_tp_traverse_3_sa_Scorer, /*tp_traverse*/
+  __pyx_tp_clear_3_sa_Scorer, /*tp_clear*/
+  0, /*tp_richcompare*/
+  0, /*tp_weaklistoffset*/
+  0, /*tp_iter*/
+  0, /*tp_iternext*/
+  __pyx_methods_3_sa_Scorer, /*tp_methods*/
+  0, /*tp_members*/
+  0, /*tp_getset*/
+  0, /*tp_base*/
+  0, /*tp_dict*/
+  0, /*tp_descr_get*/
+  0, /*tp_descr_set*/
+  0, /*tp_dictoffset*/
+  __pyx_pw_3_sa_6Scorer_1__init__, /*tp_init*/
+  0, /*tp_alloc*/
+  __pyx_tp_new_3_sa_Scorer, /*tp_new*/
+  0, /*tp_free*/
+  0, /*tp_is_gc*/
+  0, /*tp_bases*/
+  0, /*tp_mro*/
+  0, /*tp_cache*/
+  0, /*tp_subclasses*/
+  0, /*tp_weaklist*/
+  0, /*tp_del*/
+  #if PY_VERSION_HEX >= 0x02060000
+  0, /*tp_version_tag*/
+  #endif
+};
+static struct __pyx_vtabstruct_3_sa_DefaultScorer __pyx_vtable_3_sa_DefaultScorer;
+
+static PyObject *__pyx_tp_new_3_sa_DefaultScorer(PyTypeObject *t, PyObject *a, PyObject *k) {
+  struct __pyx_obj_3_sa_DefaultScorer *p;
+  PyObject *o = __pyx_tp_new_3_sa_Scorer(t, a, k);
+  if (!o) return 0;
+  p = ((struct __pyx_obj_3_sa_DefaultScorer *)o);
+  p->__pyx_base.__pyx_vtab = (struct __pyx_vtabstruct_3_sa_Scorer*)__pyx_vtabptr_3_sa_DefaultScorer;
+  p->ttable = ((struct __pyx_obj_3_sa_BiLex *)Py_None); Py_INCREF(Py_None);
+  return o;
+}
+
+static void __pyx_tp_dealloc_3_sa_DefaultScorer(PyObject *o) {
+  struct __pyx_obj_3_sa_DefaultScorer *p = (struct __pyx_obj_3_sa_DefaultScorer *)o;
+  {
+    PyObject *etype, *eval, *etb;
+    PyErr_Fetch(&etype, &eval, &etb);
+    ++Py_REFCNT(o);
+    __pyx_pw_3_sa_13DefaultScorer_1__dealloc__(o);
+    if (PyErr_Occurred()) PyErr_WriteUnraisable(o);
+    --Py_REFCNT(o);
+    PyErr_Restore(etype, eval, etb);
+  }
+  Py_XDECREF(((PyObject *)p->ttable));
+  __pyx_tp_dealloc_3_sa_Scorer(o);
+}
+
+static int __pyx_tp_traverse_3_sa_DefaultScorer(PyObject *o, visitproc v, void *a) {
+  int e;
+  struct __pyx_obj_3_sa_DefaultScorer *p = (struct __pyx_obj_3_sa_DefaultScorer *)o;
+  e = __pyx_tp_traverse_3_sa_Scorer(o, v, a); if (e) return e;
+  if (p->ttable) {
+    e = (*v)(((PyObject*)p->ttable), a); if (e) return e;
+  }
+  return 0;
+}
+
+static int __pyx_tp_clear_3_sa_DefaultScorer(PyObject *o) {
+  struct __pyx_obj_3_sa_DefaultScorer *p = (struct __pyx_obj_3_sa_DefaultScorer *)o;
+  PyObject* tmp;
+  __pyx_tp_clear_3_sa_Scorer(o);
+  tmp = ((PyObject*)p->ttable);
+  p->ttable = ((struct __pyx_obj_3_sa_BiLex *)Py_None); Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  return 0;
+}
+
+static PyMethodDef __pyx_methods_3_sa_DefaultScorer[] = {
+  {0, 0, 0, 0}
+};
+
+static PyNumberMethods __pyx_tp_as_number_DefaultScorer = {
+  0, /*nb_add*/
+  0, /*nb_subtract*/
+  0, /*nb_multiply*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_divide*/
+  #endif
+  0, /*nb_remainder*/
+  0, /*nb_divmod*/
+  0, /*nb_power*/
+  0, /*nb_negative*/
+  0, /*nb_positive*/
+  0, /*nb_absolute*/
+  0, /*nb_nonzero*/
+  0, /*nb_invert*/
+  0, /*nb_lshift*/
+  0, /*nb_rshift*/
+  0, /*nb_and*/
+  0, /*nb_xor*/
+  0, /*nb_or*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_coerce*/
+  #endif
+  0, /*nb_int*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_long*/
+  #else
+  0, /*reserved*/
+  #endif
+  0, /*nb_float*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_oct*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_hex*/
+  #endif
+  0, /*nb_inplace_add*/
+  0, /*nb_inplace_subtract*/
+  0, /*nb_inplace_multiply*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_inplace_divide*/
+  #endif
+  0, /*nb_inplace_remainder*/
+  0, /*nb_inplace_power*/
+  0, /*nb_inplace_lshift*/
+  0, /*nb_inplace_rshift*/
+  0, /*nb_inplace_and*/
+  0, /*nb_inplace_xor*/
+  0, /*nb_inplace_or*/
+  0, /*nb_floor_divide*/
+  0, /*nb_true_divide*/
+  0, /*nb_inplace_floor_divide*/
+  0, /*nb_inplace_true_divide*/
+  #if PY_VERSION_HEX >= 0x02050000
+  0, /*nb_index*/
+  #endif
+};
+
+static PySequenceMethods __pyx_tp_as_sequence_DefaultScorer = {
+  0, /*sq_length*/
+  0, /*sq_concat*/
+  0, /*sq_repeat*/
+  0, /*sq_item*/
+  0, /*sq_slice*/
+  0, /*sq_ass_item*/
+  0, /*sq_ass_slice*/
+  0, /*sq_contains*/
+  0, /*sq_inplace_concat*/
+  0, /*sq_inplace_repeat*/
+};
+
+static PyMappingMethods __pyx_tp_as_mapping_DefaultScorer = {
+  0, /*mp_length*/
+  0, /*mp_subscript*/
+  0, /*mp_ass_subscript*/
+};
+
+static PyBufferProcs __pyx_tp_as_buffer_DefaultScorer = {
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getreadbuffer*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getwritebuffer*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getsegcount*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getcharbuffer*/
+  #endif
+  #if PY_VERSION_HEX >= 0x02060000
+  0, /*bf_getbuffer*/
+  #endif
+  #if PY_VERSION_HEX >= 0x02060000
+  0, /*bf_releasebuffer*/
+  #endif
+};
+
+static PyTypeObject __pyx_type_3_sa_DefaultScorer = {
+  PyVarObject_HEAD_INIT(0, 0)
+  __Pyx_NAMESTR("_sa.DefaultScorer"), /*tp_name*/
+  sizeof(struct __pyx_obj_3_sa_DefaultScorer), /*tp_basicsize*/
+  0, /*tp_itemsize*/
+  __pyx_tp_dealloc_3_sa_DefaultScorer, /*tp_dealloc*/
+  0, /*tp_print*/
+  0, /*tp_getattr*/
+  0, /*tp_setattr*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*tp_compare*/
+  #else
+  0, /*reserved*/
+  #endif
+  0, /*tp_repr*/
+  &__pyx_tp_as_number_DefaultScorer, /*tp_as_number*/
+  &__pyx_tp_as_sequence_DefaultScorer, /*tp_as_sequence*/
+  &__pyx_tp_as_mapping_DefaultScorer, /*tp_as_mapping*/
+  0, /*tp_hash*/
+  0, /*tp_call*/
+  0, /*tp_str*/
+  0, /*tp_getattro*/
+  0, /*tp_setattro*/
+  &__pyx_tp_as_buffer_DefaultScorer, /*tp_as_buffer*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
+  0, /*tp_doc*/
+  __pyx_tp_traverse_3_sa_DefaultScorer, /*tp_traverse*/
+  __pyx_tp_clear_3_sa_DefaultScorer, /*tp_clear*/
+  0, /*tp_richcompare*/
+  0, /*tp_weaklistoffset*/
+  0, /*tp_iter*/
+  0, /*tp_iternext*/
+  __pyx_methods_3_sa_DefaultScorer, /*tp_methods*/
+  0, /*tp_members*/
+  0, /*tp_getset*/
+  0, /*tp_base*/
+  0, /*tp_dict*/
+  0, /*tp_descr_get*/
+  0, /*tp_descr_set*/
+  0, /*tp_dictoffset*/
+  __pyx_pw_3_sa_13DefaultScorer_3__init__, /*tp_init*/
+  0, /*tp_alloc*/
+  __pyx_tp_new_3_sa_DefaultScorer, /*tp_new*/
+  0, /*tp_free*/
+  0, /*tp_is_gc*/
+  0, /*tp_bases*/
+  0, /*tp_mro*/
+  0, /*tp_cache*/
+  0, /*tp_subclasses*/
+  0, /*tp_weaklist*/
+  0, /*tp_del*/
+  #if PY_VERSION_HEX >= 0x02060000
+  0, /*tp_version_tag*/
+  #endif
+};
 
 static PyObject *__pyx_tp_new_3_sa_TrieNode(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
   struct __pyx_obj_3_sa_TrieNode *p;
@@ -58794,6 +61090,7 @@ static PyObject *__pyx_tp_new_3_sa_HieroCachingRuleFactory(PyTypeObject *t, PyOb
   p->__pyx_vtab = __pyx_vtabptr_3_sa_HieroCachingRuleFactory;
   p->rules = ((struct __pyx_obj_3_sa_TrieTable *)Py_None); Py_INCREF(Py_None);
   p->sampler = ((struct __pyx_obj_3_sa_Sampler *)Py_None); Py_INCREF(Py_None);
+  p->scorer = ((struct __pyx_obj_3_sa_Scorer *)Py_None); Py_INCREF(Py_None);
   p->precomputed_index = Py_None; Py_INCREF(Py_None);
   p->precomputed_collocations = Py_None; Py_INCREF(Py_None);
   p->precompute_file = Py_None; Py_INCREF(Py_None);
@@ -58817,6 +61114,7 @@ static void __pyx_tp_dealloc_3_sa_HieroCachingRuleFactory(PyObject *o) {
   struct __pyx_obj_3_sa_HieroCachingRuleFactory *p = (struct __pyx_obj_3_sa_HieroCachingRuleFactory *)o;
   Py_XDECREF(((PyObject *)p->rules));
   Py_XDECREF(((PyObject *)p->sampler));
+  Py_XDECREF(((PyObject *)p->scorer));
   Py_XDECREF(p->precomputed_index);
   Py_XDECREF(p->precomputed_collocations);
   Py_XDECREF(p->precompute_file);
@@ -58842,6 +61140,9 @@ static int __pyx_tp_traverse_3_sa_HieroCachingRuleFactory(PyObject *o, visitproc
   if (p->sampler) {
     e = (*v)(((PyObject*)p->sampler), a); if (e) return e;
   }
+  if (p->scorer) {
+    e = (*v)(((PyObject*)p->scorer), a); if (e) return e;
+  }
   if (p->precomputed_index) {
     e = (*v)(p->precomputed_index, a); if (e) return e;
   }
@@ -58893,6 +61194,9 @@ static int __pyx_tp_clear_3_sa_HieroCachingRuleFactory(PyObject *o) {
   tmp = ((PyObject*)p->sampler);
   p->sampler = ((struct __pyx_obj_3_sa_Sampler *)Py_None); Py_INCREF(Py_None);
   Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->scorer);
+  p->scorer = ((struct __pyx_obj_3_sa_Scorer *)Py_None); Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
   tmp = ((PyObject*)p->precomputed_index);
   p->precomputed_index = Py_None; Py_INCREF(Py_None);
   Py_XDECREF(tmp);
@@ -58946,7 +61250,7 @@ static PyMethodDef __pyx_methods_3_sa_HieroCachingRuleFactory[] = {
   {__Pyx_NAMESTR("reachable"), (PyCFunction)__pyx_pw_3_sa_23HieroCachingRuleFactory_17reachable, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)},
   {__Pyx_NAMESTR("shortest"), (PyCFunction)__pyx_pw_3_sa_23HieroCachingRuleFactory_19shortest, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)},
   {__Pyx_NAMESTR("get_next_states"), (PyCFunction)__pyx_pw_3_sa_23HieroCachingRuleFactory_21get_next_states, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)},
-  {__Pyx_NAMESTR("input"), (PyCFunction)__pyx_pw_3_sa_23HieroCachingRuleFactory_23input, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(__pyx_doc_3_sa_23HieroCachingRuleFactory_22input)},
+  {__Pyx_NAMESTR("input"), (PyCFunction)__pyx_pw_3_sa_23HieroCachingRuleFactory_23input, METH_O, __Pyx_DOCSTR(__pyx_doc_3_sa_23HieroCachingRuleFactory_22input)},
   {0, 0, 0, 0}
 };
 
@@ -59104,32 +61408,223 @@ static PyTypeObject __pyx_type_3_sa_HieroCachingRuleFactory = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_3_sa___pyx_scope_struct__read_bitext(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_3_sa___pyx_scope_struct__read_bitext *p;
+static PyObject *__pyx_tp_new_3_sa___pyx_scope_struct____iter__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_3_sa___pyx_scope_struct____iter__ *p;
+  PyObject *o = (*t->tp_alloc)(t, 0);
+  if (!o) return 0;
+  p = ((struct __pyx_obj_3_sa___pyx_scope_struct____iter__ *)o);
+  p->__pyx_v_self = 0;
+  return o;
+}
+
+static void __pyx_tp_dealloc_3_sa___pyx_scope_struct____iter__(PyObject *o) {
+  struct __pyx_obj_3_sa___pyx_scope_struct____iter__ *p = (struct __pyx_obj_3_sa___pyx_scope_struct____iter__ *)o;
+  Py_XDECREF(((PyObject *)p->__pyx_v_self));
+  (*Py_TYPE(o)->tp_free)(o);
+}
+
+static int __pyx_tp_traverse_3_sa___pyx_scope_struct____iter__(PyObject *o, visitproc v, void *a) {
+  int e;
+  struct __pyx_obj_3_sa___pyx_scope_struct____iter__ *p = (struct __pyx_obj_3_sa___pyx_scope_struct____iter__ *)o;
+  if (p->__pyx_v_self) {
+    e = (*v)(((PyObject*)p->__pyx_v_self), a); if (e) return e;
+  }
+  return 0;
+}
+
+static int __pyx_tp_clear_3_sa___pyx_scope_struct____iter__(PyObject *o) {
+  struct __pyx_obj_3_sa___pyx_scope_struct____iter__ *p = (struct __pyx_obj_3_sa___pyx_scope_struct____iter__ *)o;
+  PyObject* tmp;
+  tmp = ((PyObject*)p->__pyx_v_self);
+  p->__pyx_v_self = ((struct __pyx_obj_3_sa_IntList *)Py_None); Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  return 0;
+}
+
+static PyMethodDef __pyx_methods_3_sa___pyx_scope_struct____iter__[] = {
+  {0, 0, 0, 0}
+};
+
+static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct____iter__ = {
+  0, /*nb_add*/
+  0, /*nb_subtract*/
+  0, /*nb_multiply*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_divide*/
+  #endif
+  0, /*nb_remainder*/
+  0, /*nb_divmod*/
+  0, /*nb_power*/
+  0, /*nb_negative*/
+  0, /*nb_positive*/
+  0, /*nb_absolute*/
+  0, /*nb_nonzero*/
+  0, /*nb_invert*/
+  0, /*nb_lshift*/
+  0, /*nb_rshift*/
+  0, /*nb_and*/
+  0, /*nb_xor*/
+  0, /*nb_or*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_coerce*/
+  #endif
+  0, /*nb_int*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_long*/
+  #else
+  0, /*reserved*/
+  #endif
+  0, /*nb_float*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_oct*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_hex*/
+  #endif
+  0, /*nb_inplace_add*/
+  0, /*nb_inplace_subtract*/
+  0, /*nb_inplace_multiply*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_inplace_divide*/
+  #endif
+  0, /*nb_inplace_remainder*/
+  0, /*nb_inplace_power*/
+  0, /*nb_inplace_lshift*/
+  0, /*nb_inplace_rshift*/
+  0, /*nb_inplace_and*/
+  0, /*nb_inplace_xor*/
+  0, /*nb_inplace_or*/
+  0, /*nb_floor_divide*/
+  0, /*nb_true_divide*/
+  0, /*nb_inplace_floor_divide*/
+  0, /*nb_inplace_true_divide*/
+  #if PY_VERSION_HEX >= 0x02050000
+  0, /*nb_index*/
+  #endif
+};
+
+static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct____iter__ = {
+  0, /*sq_length*/
+  0, /*sq_concat*/
+  0, /*sq_repeat*/
+  0, /*sq_item*/
+  0, /*sq_slice*/
+  0, /*sq_ass_item*/
+  0, /*sq_ass_slice*/
+  0, /*sq_contains*/
+  0, /*sq_inplace_concat*/
+  0, /*sq_inplace_repeat*/
+};
+
+static PyMappingMethods __pyx_tp_as_mapping___pyx_scope_struct____iter__ = {
+  0, /*mp_length*/
+  0, /*mp_subscript*/
+  0, /*mp_ass_subscript*/
+};
+
+static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct____iter__ = {
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getreadbuffer*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getwritebuffer*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getsegcount*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getcharbuffer*/
+  #endif
+  #if PY_VERSION_HEX >= 0x02060000
+  0, /*bf_getbuffer*/
+  #endif
+  #if PY_VERSION_HEX >= 0x02060000
+  0, /*bf_releasebuffer*/
+  #endif
+};
+
+static PyTypeObject __pyx_type_3_sa___pyx_scope_struct____iter__ = {
+  PyVarObject_HEAD_INIT(0, 0)
+  __Pyx_NAMESTR("_sa.__pyx_scope_struct____iter__"), /*tp_name*/
+  sizeof(struct __pyx_obj_3_sa___pyx_scope_struct____iter__), /*tp_basicsize*/
+  0, /*tp_itemsize*/
+  __pyx_tp_dealloc_3_sa___pyx_scope_struct____iter__, /*tp_dealloc*/
+  0, /*tp_print*/
+  0, /*tp_getattr*/
+  0, /*tp_setattr*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*tp_compare*/
+  #else
+  0, /*reserved*/
+  #endif
+  0, /*tp_repr*/
+  &__pyx_tp_as_number___pyx_scope_struct____iter__, /*tp_as_number*/
+  &__pyx_tp_as_sequence___pyx_scope_struct____iter__, /*tp_as_sequence*/
+  &__pyx_tp_as_mapping___pyx_scope_struct____iter__, /*tp_as_mapping*/
+  0, /*tp_hash*/
+  0, /*tp_call*/
+  0, /*tp_str*/
+  0, /*tp_getattro*/
+  0, /*tp_setattro*/
+  &__pyx_tp_as_buffer___pyx_scope_struct____iter__, /*tp_as_buffer*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
+  0, /*tp_doc*/
+  __pyx_tp_traverse_3_sa___pyx_scope_struct____iter__, /*tp_traverse*/
+  __pyx_tp_clear_3_sa___pyx_scope_struct____iter__, /*tp_clear*/
+  0, /*tp_richcompare*/
+  0, /*tp_weaklistoffset*/
+  0, /*tp_iter*/
+  0, /*tp_iternext*/
+  __pyx_methods_3_sa___pyx_scope_struct____iter__, /*tp_methods*/
+  0, /*tp_members*/
+  0, /*tp_getset*/
+  0, /*tp_base*/
+  0, /*tp_dict*/
+  0, /*tp_descr_get*/
+  0, /*tp_descr_set*/
+  0, /*tp_dictoffset*/
+  0, /*tp_init*/
+  0, /*tp_alloc*/
+  __pyx_tp_new_3_sa___pyx_scope_struct____iter__, /*tp_new*/
+  0, /*tp_free*/
+  0, /*tp_is_gc*/
+  0, /*tp_bases*/
+  0, /*tp_mro*/
+  0, /*tp_cache*/
+  0, /*tp_subclasses*/
+  0, /*tp_weaklist*/
+  0, /*tp_del*/
+  #if PY_VERSION_HEX >= 0x02060000
+  0, /*tp_version_tag*/
+  #endif
+};
+
+static PyObject *__pyx_tp_new_3_sa___pyx_scope_struct_1_read_bitext(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_3_sa___pyx_scope_struct_1_read_bitext *p;
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
-  p = ((struct __pyx_obj_3_sa___pyx_scope_struct__read_bitext *)o);
+  p = ((struct __pyx_obj_3_sa___pyx_scope_struct_1_read_bitext *)o);
   p->__pyx_v_fp = 0;
   return o;
 }
 
-static void __pyx_tp_dealloc_3_sa___pyx_scope_struct__read_bitext(PyObject *o) {
-  struct __pyx_obj_3_sa___pyx_scope_struct__read_bitext *p = (struct __pyx_obj_3_sa___pyx_scope_struct__read_bitext *)o;
+static void __pyx_tp_dealloc_3_sa___pyx_scope_struct_1_read_bitext(PyObject *o) {
+  struct __pyx_obj_3_sa___pyx_scope_struct_1_read_bitext *p = (struct __pyx_obj_3_sa___pyx_scope_struct_1_read_bitext *)o;
   Py_XDECREF(p->__pyx_v_fp);
   (*Py_TYPE(o)->tp_free)(o);
 }
 
-static int __pyx_tp_traverse_3_sa___pyx_scope_struct__read_bitext(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_3_sa___pyx_scope_struct_1_read_bitext(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_3_sa___pyx_scope_struct__read_bitext *p = (struct __pyx_obj_3_sa___pyx_scope_struct__read_bitext *)o;
+  struct __pyx_obj_3_sa___pyx_scope_struct_1_read_bitext *p = (struct __pyx_obj_3_sa___pyx_scope_struct_1_read_bitext *)o;
   if (p->__pyx_v_fp) {
     e = (*v)(p->__pyx_v_fp, a); if (e) return e;
   }
   return 0;
 }
 
-static int __pyx_tp_clear_3_sa___pyx_scope_struct__read_bitext(PyObject *o) {
-  struct __pyx_obj_3_sa___pyx_scope_struct__read_bitext *p = (struct __pyx_obj_3_sa___pyx_scope_struct__read_bitext *)o;
+static int __pyx_tp_clear_3_sa___pyx_scope_struct_1_read_bitext(PyObject *o) {
+  struct __pyx_obj_3_sa___pyx_scope_struct_1_read_bitext *p = (struct __pyx_obj_3_sa___pyx_scope_struct_1_read_bitext *)o;
   PyObject* tmp;
   tmp = ((PyObject*)p->__pyx_v_fp);
   p->__pyx_v_fp = Py_None; Py_INCREF(Py_None);
@@ -59137,11 +61632,11 @@ static int __pyx_tp_clear_3_sa___pyx_scope_struct__read_bitext(PyObject *o) {
   return 0;
 }
 
-static PyMethodDef __pyx_methods_3_sa___pyx_scope_struct__read_bitext[] = {
+static PyMethodDef __pyx_methods_3_sa___pyx_scope_struct_1_read_bitext[] = {
   {0, 0, 0, 0}
 };
 
-static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct__read_bitext = {
+static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_1_read_bitext = {
   0, /*nb_add*/
   0, /*nb_subtract*/
   0, /*nb_multiply*/
@@ -59199,7 +61694,7 @@ static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct__read_bitext = {
   #endif
 };
 
-static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct__read_bitext = {
+static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_1_read_bitext = {
   0, /*sq_length*/
   0, /*sq_concat*/
   0, /*sq_repeat*/
@@ -59212,13 +61707,13 @@ static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct__read_bitext =
   0, /*sq_inplace_repeat*/
 };
 
-static PyMappingMethods __pyx_tp_as_mapping___pyx_scope_struct__read_bitext = {
+static PyMappingMethods __pyx_tp_as_mapping___pyx_scope_struct_1_read_bitext = {
   0, /*mp_length*/
   0, /*mp_subscript*/
   0, /*mp_ass_subscript*/
 };
 
-static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct__read_bitext = {
+static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_1_read_bitext = {
   #if PY_MAJOR_VERSION < 3
   0, /*bf_getreadbuffer*/
   #endif
@@ -59239,12 +61734,12 @@ static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct__read_bitext = {
   #endif
 };
 
-static PyTypeObject __pyx_type_3_sa___pyx_scope_struct__read_bitext = {
+static PyTypeObject __pyx_type_3_sa___pyx_scope_struct_1_read_bitext = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_sa.__pyx_scope_struct__read_bitext"), /*tp_name*/
-  sizeof(struct __pyx_obj_3_sa___pyx_scope_struct__read_bitext), /*tp_basicsize*/
+  __Pyx_NAMESTR("_sa.__pyx_scope_struct_1_read_bitext"), /*tp_name*/
+  sizeof(struct __pyx_obj_3_sa___pyx_scope_struct_1_read_bitext), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_3_sa___pyx_scope_struct__read_bitext, /*tp_dealloc*/
+  __pyx_tp_dealloc_3_sa___pyx_scope_struct_1_read_bitext, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -59254,24 +61749,24 @@ static PyTypeObject __pyx_type_3_sa___pyx_scope_struct__read_bitext = {
   0, /*reserved*/
   #endif
   0, /*tp_repr*/
-  &__pyx_tp_as_number___pyx_scope_struct__read_bitext, /*tp_as_number*/
-  &__pyx_tp_as_sequence___pyx_scope_struct__read_bitext, /*tp_as_sequence*/
-  &__pyx_tp_as_mapping___pyx_scope_struct__read_bitext, /*tp_as_mapping*/
+  &__pyx_tp_as_number___pyx_scope_struct_1_read_bitext, /*tp_as_number*/
+  &__pyx_tp_as_sequence___pyx_scope_struct_1_read_bitext, /*tp_as_sequence*/
+  &__pyx_tp_as_mapping___pyx_scope_struct_1_read_bitext, /*tp_as_mapping*/
   0, /*tp_hash*/
   0, /*tp_call*/
   0, /*tp_str*/
   0, /*tp_getattro*/
   0, /*tp_setattro*/
-  &__pyx_tp_as_buffer___pyx_scope_struct__read_bitext, /*tp_as_buffer*/
+  &__pyx_tp_as_buffer___pyx_scope_struct_1_read_bitext, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_3_sa___pyx_scope_struct__read_bitext, /*tp_traverse*/
-  __pyx_tp_clear_3_sa___pyx_scope_struct__read_bitext, /*tp_clear*/
+  __pyx_tp_traverse_3_sa___pyx_scope_struct_1_read_bitext, /*tp_traverse*/
+  __pyx_tp_clear_3_sa___pyx_scope_struct_1_read_bitext, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_3_sa___pyx_scope_struct__read_bitext, /*tp_methods*/
+  __pyx_methods_3_sa___pyx_scope_struct_1_read_bitext, /*tp_methods*/
   0, /*tp_members*/
   0, /*tp_getset*/
   0, /*tp_base*/
@@ -59281,7 +61776,7 @@ static PyTypeObject __pyx_type_3_sa___pyx_scope_struct__read_bitext = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_3_sa___pyx_scope_struct__read_bitext, /*tp_new*/
+  __pyx_tp_new_3_sa___pyx_scope_struct_1_read_bitext, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -59295,28 +61790,28 @@ static PyTypeObject __pyx_type_3_sa___pyx_scope_struct__read_bitext = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_3_sa___pyx_scope_struct_1_genexpr(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_3_sa___pyx_scope_struct_1_genexpr *p;
+static PyObject *__pyx_tp_new_3_sa___pyx_scope_struct_2_genexpr(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_3_sa___pyx_scope_struct_2_genexpr *p;
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
-  p = ((struct __pyx_obj_3_sa___pyx_scope_struct_1_genexpr *)o);
+  p = ((struct __pyx_obj_3_sa___pyx_scope_struct_2_genexpr *)o);
   p->__pyx_outer_scope = 0;
   p->__pyx_v_line = 0;
   p->__pyx_t_0 = 0;
   return o;
 }
 
-static void __pyx_tp_dealloc_3_sa___pyx_scope_struct_1_genexpr(PyObject *o) {
-  struct __pyx_obj_3_sa___pyx_scope_struct_1_genexpr *p = (struct __pyx_obj_3_sa___pyx_scope_struct_1_genexpr *)o;
+static void __pyx_tp_dealloc_3_sa___pyx_scope_struct_2_genexpr(PyObject *o) {
+  struct __pyx_obj_3_sa___pyx_scope_struct_2_genexpr *p = (struct __pyx_obj_3_sa___pyx_scope_struct_2_genexpr *)o;
   Py_XDECREF(((PyObject *)p->__pyx_outer_scope));
   Py_XDECREF(p->__pyx_v_line);
   Py_XDECREF(p->__pyx_t_0);
   (*Py_TYPE(o)->tp_free)(o);
 }
 
-static int __pyx_tp_traverse_3_sa___pyx_scope_struct_1_genexpr(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_3_sa___pyx_scope_struct_2_genexpr(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_3_sa___pyx_scope_struct_1_genexpr *p = (struct __pyx_obj_3_sa___pyx_scope_struct_1_genexpr *)o;
+  struct __pyx_obj_3_sa___pyx_scope_struct_2_genexpr *p = (struct __pyx_obj_3_sa___pyx_scope_struct_2_genexpr *)o;
   if (p->__pyx_outer_scope) {
     e = (*v)(((PyObject*)p->__pyx_outer_scope), a); if (e) return e;
   }
@@ -59329,11 +61824,11 @@ static int __pyx_tp_traverse_3_sa___pyx_scope_struct_1_genexpr(PyObject *o, visi
   return 0;
 }
 
-static int __pyx_tp_clear_3_sa___pyx_scope_struct_1_genexpr(PyObject *o) {
-  struct __pyx_obj_3_sa___pyx_scope_struct_1_genexpr *p = (struct __pyx_obj_3_sa___pyx_scope_struct_1_genexpr *)o;
+static int __pyx_tp_clear_3_sa___pyx_scope_struct_2_genexpr(PyObject *o) {
+  struct __pyx_obj_3_sa___pyx_scope_struct_2_genexpr *p = (struct __pyx_obj_3_sa___pyx_scope_struct_2_genexpr *)o;
   PyObject* tmp;
   tmp = ((PyObject*)p->__pyx_outer_scope);
-  p->__pyx_outer_scope = ((struct __pyx_obj_3_sa___pyx_scope_struct__read_bitext *)Py_None); Py_INCREF(Py_None);
+  p->__pyx_outer_scope = ((struct __pyx_obj_3_sa___pyx_scope_struct_1_read_bitext *)Py_None); Py_INCREF(Py_None);
   Py_XDECREF(tmp);
   tmp = ((PyObject*)p->__pyx_v_line);
   p->__pyx_v_line = Py_None; Py_INCREF(Py_None);
@@ -59344,11 +61839,11 @@ static int __pyx_tp_clear_3_sa___pyx_scope_struct_1_genexpr(PyObject *o) {
   return 0;
 }
 
-static PyMethodDef __pyx_methods_3_sa___pyx_scope_struct_1_genexpr[] = {
+static PyMethodDef __pyx_methods_3_sa___pyx_scope_struct_2_genexpr[] = {
   {0, 0, 0, 0}
 };
 
-static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_1_genexpr = {
+static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_2_genexpr = {
   0, /*nb_add*/
   0, /*nb_subtract*/
   0, /*nb_multiply*/
@@ -59406,7 +61901,7 @@ static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_1_genexpr = {
   #endif
 };
 
-static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_1_genexpr = {
+static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_2_genexpr = {
   0, /*sq_length*/
   0, /*sq_concat*/
   0, /*sq_repeat*/
@@ -59419,13 +61914,13 @@ static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_1_genexpr = {
   0, /*sq_inplace_repeat*/
 };
 
-static PyMappingMethods __pyx_tp_as_mapping___pyx_scope_struct_1_genexpr = {
+static PyMappingMethods __pyx_tp_as_mapping___pyx_scope_struct_2_genexpr = {
   0, /*mp_length*/
   0, /*mp_subscript*/
   0, /*mp_ass_subscript*/
 };
 
-static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_1_genexpr = {
+static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_2_genexpr = {
   #if PY_MAJOR_VERSION < 3
   0, /*bf_getreadbuffer*/
   #endif
@@ -59446,12 +61941,12 @@ static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_1_genexpr = {
   #endif
 };
 
-static PyTypeObject __pyx_type_3_sa___pyx_scope_struct_1_genexpr = {
+static PyTypeObject __pyx_type_3_sa___pyx_scope_struct_2_genexpr = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_sa.__pyx_scope_struct_1_genexpr"), /*tp_name*/
-  sizeof(struct __pyx_obj_3_sa___pyx_scope_struct_1_genexpr), /*tp_basicsize*/
+  __Pyx_NAMESTR("_sa.__pyx_scope_struct_2_genexpr"), /*tp_name*/
+  sizeof(struct __pyx_obj_3_sa___pyx_scope_struct_2_genexpr), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_3_sa___pyx_scope_struct_1_genexpr, /*tp_dealloc*/
+  __pyx_tp_dealloc_3_sa___pyx_scope_struct_2_genexpr, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -59461,24 +61956,24 @@ static PyTypeObject __pyx_type_3_sa___pyx_scope_struct_1_genexpr = {
   0, /*reserved*/
   #endif
   0, /*tp_repr*/
-  &__pyx_tp_as_number___pyx_scope_struct_1_genexpr, /*tp_as_number*/
-  &__pyx_tp_as_sequence___pyx_scope_struct_1_genexpr, /*tp_as_sequence*/
-  &__pyx_tp_as_mapping___pyx_scope_struct_1_genexpr, /*tp_as_mapping*/
+  &__pyx_tp_as_number___pyx_scope_struct_2_genexpr, /*tp_as_number*/
+  &__pyx_tp_as_sequence___pyx_scope_struct_2_genexpr, /*tp_as_sequence*/
+  &__pyx_tp_as_mapping___pyx_scope_struct_2_genexpr, /*tp_as_mapping*/
   0, /*tp_hash*/
   0, /*tp_call*/
   0, /*tp_str*/
   0, /*tp_getattro*/
   0, /*tp_setattro*/
-  &__pyx_tp_as_buffer___pyx_scope_struct_1_genexpr, /*tp_as_buffer*/
+  &__pyx_tp_as_buffer___pyx_scope_struct_2_genexpr, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_3_sa___pyx_scope_struct_1_genexpr, /*tp_traverse*/
-  __pyx_tp_clear_3_sa___pyx_scope_struct_1_genexpr, /*tp_clear*/
+  __pyx_tp_traverse_3_sa___pyx_scope_struct_2_genexpr, /*tp_traverse*/
+  __pyx_tp_clear_3_sa___pyx_scope_struct_2_genexpr, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_3_sa___pyx_scope_struct_1_genexpr, /*tp_methods*/
+  __pyx_methods_3_sa___pyx_scope_struct_2_genexpr, /*tp_methods*/
   0, /*tp_members*/
   0, /*tp_getset*/
   0, /*tp_base*/
@@ -59488,7 +61983,7 @@ static PyTypeObject __pyx_type_3_sa___pyx_scope_struct_1_genexpr = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_3_sa___pyx_scope_struct_1_genexpr, /*tp_new*/
+  __pyx_tp_new_3_sa___pyx_scope_struct_2_genexpr, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -59502,11 +61997,11 @@ static PyTypeObject __pyx_type_3_sa___pyx_scope_struct_1_genexpr = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_3_sa___pyx_scope_struct_2_compute_stats(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_3_sa___pyx_scope_struct_2_compute_stats *p;
+static PyObject *__pyx_tp_new_3_sa___pyx_scope_struct_3_compute_stats(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_3_sa___pyx_scope_struct_3_compute_stats *p;
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
-  p = ((struct __pyx_obj_3_sa___pyx_scope_struct_2_compute_stats *)o);
+  p = ((struct __pyx_obj_3_sa___pyx_scope_struct_3_compute_stats *)o);
   p->__pyx_v_ngram = 0;
   p->__pyx_v_ngram_start = 0;
   p->__pyx_v_ngram_starts = 0;
@@ -59516,8 +62011,8 @@ static PyObject *__pyx_tp_new_3_sa___pyx_scope_struct_2_compute_stats(PyTypeObje
   return o;
 }
 
-static void __pyx_tp_dealloc_3_sa___pyx_scope_struct_2_compute_stats(PyObject *o) {
-  struct __pyx_obj_3_sa___pyx_scope_struct_2_compute_stats *p = (struct __pyx_obj_3_sa___pyx_scope_struct_2_compute_stats *)o;
+static void __pyx_tp_dealloc_3_sa___pyx_scope_struct_3_compute_stats(PyObject *o) {
+  struct __pyx_obj_3_sa___pyx_scope_struct_3_compute_stats *p = (struct __pyx_obj_3_sa___pyx_scope_struct_3_compute_stats *)o;
   Py_XDECREF(((PyObject *)p->__pyx_v_ngram));
   Py_XDECREF(((PyObject *)p->__pyx_v_ngram_start));
   Py_XDECREF(((PyObject *)p->__pyx_v_ngram_starts));
@@ -59527,9 +62022,9 @@ static void __pyx_tp_dealloc_3_sa___pyx_scope_struct_2_compute_stats(PyObject *o
   (*Py_TYPE(o)->tp_free)(o);
 }
 
-static int __pyx_tp_traverse_3_sa___pyx_scope_struct_2_compute_stats(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_3_sa___pyx_scope_struct_3_compute_stats(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_3_sa___pyx_scope_struct_2_compute_stats *p = (struct __pyx_obj_3_sa___pyx_scope_struct_2_compute_stats *)o;
+  struct __pyx_obj_3_sa___pyx_scope_struct_3_compute_stats *p = (struct __pyx_obj_3_sa___pyx_scope_struct_3_compute_stats *)o;
   if (p->__pyx_v_ngram) {
     e = (*v)(p->__pyx_v_ngram, a); if (e) return e;
   }
@@ -59551,8 +62046,8 @@ static int __pyx_tp_traverse_3_sa___pyx_scope_struct_2_compute_stats(PyObject *o
   return 0;
 }
 
-static int __pyx_tp_clear_3_sa___pyx_scope_struct_2_compute_stats(PyObject *o) {
-  struct __pyx_obj_3_sa___pyx_scope_struct_2_compute_stats *p = (struct __pyx_obj_3_sa___pyx_scope_struct_2_compute_stats *)o;
+static int __pyx_tp_clear_3_sa___pyx_scope_struct_3_compute_stats(PyObject *o) {
+  struct __pyx_obj_3_sa___pyx_scope_struct_3_compute_stats *p = (struct __pyx_obj_3_sa___pyx_scope_struct_3_compute_stats *)o;
   PyObject* tmp;
   tmp = ((PyObject*)p->__pyx_v_ngram);
   p->__pyx_v_ngram = ((PyObject*)Py_None); Py_INCREF(Py_None);
@@ -59575,11 +62070,11 @@ static int __pyx_tp_clear_3_sa___pyx_scope_struct_2_compute_stats(PyObject *o) {
   return 0;
 }
 
-static PyMethodDef __pyx_methods_3_sa___pyx_scope_struct_2_compute_stats[] = {
+static PyMethodDef __pyx_methods_3_sa___pyx_scope_struct_3_compute_stats[] = {
   {0, 0, 0, 0}
 };
 
-static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_2_compute_stats = {
+static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_3_compute_stats = {
   0, /*nb_add*/
   0, /*nb_subtract*/
   0, /*nb_multiply*/
@@ -59637,7 +62132,7 @@ static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_2_compute_stats = {
   #endif
 };
 
-static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_2_compute_stats = {
+static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_3_compute_stats = {
   0, /*sq_length*/
   0, /*sq_concat*/
   0, /*sq_repeat*/
@@ -59650,13 +62145,13 @@ static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_2_compute_stats
   0, /*sq_inplace_repeat*/
 };
 
-static PyMappingMethods __pyx_tp_as_mapping___pyx_scope_struct_2_compute_stats = {
+static PyMappingMethods __pyx_tp_as_mapping___pyx_scope_struct_3_compute_stats = {
   0, /*mp_length*/
   0, /*mp_subscript*/
   0, /*mp_ass_subscript*/
 };
 
-static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_2_compute_stats = {
+static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_3_compute_stats = {
   #if PY_MAJOR_VERSION < 3
   0, /*bf_getreadbuffer*/
   #endif
@@ -59677,12 +62172,12 @@ static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_2_compute_stats = {
   #endif
 };
 
-static PyTypeObject __pyx_type_3_sa___pyx_scope_struct_2_compute_stats = {
+static PyTypeObject __pyx_type_3_sa___pyx_scope_struct_3_compute_stats = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_sa.__pyx_scope_struct_2_compute_stats"), /*tp_name*/
-  sizeof(struct __pyx_obj_3_sa___pyx_scope_struct_2_compute_stats), /*tp_basicsize*/
+  __Pyx_NAMESTR("_sa.__pyx_scope_struct_3_compute_stats"), /*tp_name*/
+  sizeof(struct __pyx_obj_3_sa___pyx_scope_struct_3_compute_stats), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_3_sa___pyx_scope_struct_2_compute_stats, /*tp_dealloc*/
+  __pyx_tp_dealloc_3_sa___pyx_scope_struct_3_compute_stats, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -59692,24 +62187,24 @@ static PyTypeObject __pyx_type_3_sa___pyx_scope_struct_2_compute_stats = {
   0, /*reserved*/
   #endif
   0, /*tp_repr*/
-  &__pyx_tp_as_number___pyx_scope_struct_2_compute_stats, /*tp_as_number*/
-  &__pyx_tp_as_sequence___pyx_scope_struct_2_compute_stats, /*tp_as_sequence*/
-  &__pyx_tp_as_mapping___pyx_scope_struct_2_compute_stats, /*tp_as_mapping*/
+  &__pyx_tp_as_number___pyx_scope_struct_3_compute_stats, /*tp_as_number*/
+  &__pyx_tp_as_sequence___pyx_scope_struct_3_compute_stats, /*tp_as_sequence*/
+  &__pyx_tp_as_mapping___pyx_scope_struct_3_compute_stats, /*tp_as_mapping*/
   0, /*tp_hash*/
   0, /*tp_call*/
   0, /*tp_str*/
   0, /*tp_getattro*/
   0, /*tp_setattro*/
-  &__pyx_tp_as_buffer___pyx_scope_struct_2_compute_stats, /*tp_as_buffer*/
+  &__pyx_tp_as_buffer___pyx_scope_struct_3_compute_stats, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_3_sa___pyx_scope_struct_2_compute_stats, /*tp_traverse*/
-  __pyx_tp_clear_3_sa___pyx_scope_struct_2_compute_stats, /*tp_clear*/
+  __pyx_tp_traverse_3_sa___pyx_scope_struct_3_compute_stats, /*tp_traverse*/
+  __pyx_tp_clear_3_sa___pyx_scope_struct_3_compute_stats, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_3_sa___pyx_scope_struct_2_compute_stats, /*tp_methods*/
+  __pyx_methods_3_sa___pyx_scope_struct_3_compute_stats, /*tp_methods*/
   0, /*tp_members*/
   0, /*tp_getset*/
   0, /*tp_base*/
@@ -59719,7 +62214,7 @@ static PyTypeObject __pyx_type_3_sa___pyx_scope_struct_2_compute_stats = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_3_sa___pyx_scope_struct_2_compute_stats, /*tp_new*/
+  __pyx_tp_new_3_sa___pyx_scope_struct_3_compute_stats, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -59733,32 +62228,32 @@ static PyTypeObject __pyx_type_3_sa___pyx_scope_struct_2_compute_stats = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_3_sa___pyx_scope_struct_3___iter__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_3_sa___pyx_scope_struct_3___iter__ *p;
+static PyObject *__pyx_tp_new_3_sa___pyx_scope_struct_4___iter__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_3_sa___pyx_scope_struct_4___iter__ *p;
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
-  p = ((struct __pyx_obj_3_sa___pyx_scope_struct_3___iter__ *)o);
+  p = ((struct __pyx_obj_3_sa___pyx_scope_struct_4___iter__ *)o);
   p->__pyx_v_self = 0;
   return o;
 }
 
-static void __pyx_tp_dealloc_3_sa___pyx_scope_struct_3___iter__(PyObject *o) {
-  struct __pyx_obj_3_sa___pyx_scope_struct_3___iter__ *p = (struct __pyx_obj_3_sa___pyx_scope_struct_3___iter__ *)o;
+static void __pyx_tp_dealloc_3_sa___pyx_scope_struct_4___iter__(PyObject *o) {
+  struct __pyx_obj_3_sa___pyx_scope_struct_4___iter__ *p = (struct __pyx_obj_3_sa___pyx_scope_struct_4___iter__ *)o;
   Py_XDECREF(((PyObject *)p->__pyx_v_self));
   (*Py_TYPE(o)->tp_free)(o);
 }
 
-static int __pyx_tp_traverse_3_sa___pyx_scope_struct_3___iter__(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_3_sa___pyx_scope_struct_4___iter__(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_3_sa___pyx_scope_struct_3___iter__ *p = (struct __pyx_obj_3_sa___pyx_scope_struct_3___iter__ *)o;
+  struct __pyx_obj_3_sa___pyx_scope_struct_4___iter__ *p = (struct __pyx_obj_3_sa___pyx_scope_struct_4___iter__ *)o;
   if (p->__pyx_v_self) {
     e = (*v)(((PyObject*)p->__pyx_v_self), a); if (e) return e;
   }
   return 0;
 }
 
-static int __pyx_tp_clear_3_sa___pyx_scope_struct_3___iter__(PyObject *o) {
-  struct __pyx_obj_3_sa___pyx_scope_struct_3___iter__ *p = (struct __pyx_obj_3_sa___pyx_scope_struct_3___iter__ *)o;
+static int __pyx_tp_clear_3_sa___pyx_scope_struct_4___iter__(PyObject *o) {
+  struct __pyx_obj_3_sa___pyx_scope_struct_4___iter__ *p = (struct __pyx_obj_3_sa___pyx_scope_struct_4___iter__ *)o;
   PyObject* tmp;
   tmp = ((PyObject*)p->__pyx_v_self);
   p->__pyx_v_self = ((struct __pyx_obj_3_sa_Phrase *)Py_None); Py_INCREF(Py_None);
@@ -59766,11 +62261,998 @@ static int __pyx_tp_clear_3_sa___pyx_scope_struct_3___iter__(PyObject *o) {
   return 0;
 }
 
-static PyMethodDef __pyx_methods_3_sa___pyx_scope_struct_3___iter__[] = {
+static PyMethodDef __pyx_methods_3_sa___pyx_scope_struct_4___iter__[] = {
+  {0, 0, 0, 0}
+};
+
+static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_4___iter__ = {
+  0, /*nb_add*/
+  0, /*nb_subtract*/
+  0, /*nb_multiply*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_divide*/
+  #endif
+  0, /*nb_remainder*/
+  0, /*nb_divmod*/
+  0, /*nb_power*/
+  0, /*nb_negative*/
+  0, /*nb_positive*/
+  0, /*nb_absolute*/
+  0, /*nb_nonzero*/
+  0, /*nb_invert*/
+  0, /*nb_lshift*/
+  0, /*nb_rshift*/
+  0, /*nb_and*/
+  0, /*nb_xor*/
+  0, /*nb_or*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_coerce*/
+  #endif
+  0, /*nb_int*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_long*/
+  #else
+  0, /*reserved*/
+  #endif
+  0, /*nb_float*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_oct*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_hex*/
+  #endif
+  0, /*nb_inplace_add*/
+  0, /*nb_inplace_subtract*/
+  0, /*nb_inplace_multiply*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_inplace_divide*/
+  #endif
+  0, /*nb_inplace_remainder*/
+  0, /*nb_inplace_power*/
+  0, /*nb_inplace_lshift*/
+  0, /*nb_inplace_rshift*/
+  0, /*nb_inplace_and*/
+  0, /*nb_inplace_xor*/
+  0, /*nb_inplace_or*/
+  0, /*nb_floor_divide*/
+  0, /*nb_true_divide*/
+  0, /*nb_inplace_floor_divide*/
+  0, /*nb_inplace_true_divide*/
+  #if PY_VERSION_HEX >= 0x02050000
+  0, /*nb_index*/
+  #endif
+};
+
+static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_4___iter__ = {
+  0, /*sq_length*/
+  0, /*sq_concat*/
+  0, /*sq_repeat*/
+  0, /*sq_item*/
+  0, /*sq_slice*/
+  0, /*sq_ass_item*/
+  0, /*sq_ass_slice*/
+  0, /*sq_contains*/
+  0, /*sq_inplace_concat*/
+  0, /*sq_inplace_repeat*/
+};
+
+static PyMappingMethods __pyx_tp_as_mapping___pyx_scope_struct_4___iter__ = {
+  0, /*mp_length*/
+  0, /*mp_subscript*/
+  0, /*mp_ass_subscript*/
+};
+
+static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_4___iter__ = {
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getreadbuffer*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getwritebuffer*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getsegcount*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getcharbuffer*/
+  #endif
+  #if PY_VERSION_HEX >= 0x02060000
+  0, /*bf_getbuffer*/
+  #endif
+  #if PY_VERSION_HEX >= 0x02060000
+  0, /*bf_releasebuffer*/
+  #endif
+};
+
+static PyTypeObject __pyx_type_3_sa___pyx_scope_struct_4___iter__ = {
+  PyVarObject_HEAD_INIT(0, 0)
+  __Pyx_NAMESTR("_sa.__pyx_scope_struct_4___iter__"), /*tp_name*/
+  sizeof(struct __pyx_obj_3_sa___pyx_scope_struct_4___iter__), /*tp_basicsize*/
+  0, /*tp_itemsize*/
+  __pyx_tp_dealloc_3_sa___pyx_scope_struct_4___iter__, /*tp_dealloc*/
+  0, /*tp_print*/
+  0, /*tp_getattr*/
+  0, /*tp_setattr*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*tp_compare*/
+  #else
+  0, /*reserved*/
+  #endif
+  0, /*tp_repr*/
+  &__pyx_tp_as_number___pyx_scope_struct_4___iter__, /*tp_as_number*/
+  &__pyx_tp_as_sequence___pyx_scope_struct_4___iter__, /*tp_as_sequence*/
+  &__pyx_tp_as_mapping___pyx_scope_struct_4___iter__, /*tp_as_mapping*/
+  0, /*tp_hash*/
+  0, /*tp_call*/
+  0, /*tp_str*/
+  0, /*tp_getattro*/
+  0, /*tp_setattro*/
+  &__pyx_tp_as_buffer___pyx_scope_struct_4___iter__, /*tp_as_buffer*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
+  0, /*tp_doc*/
+  __pyx_tp_traverse_3_sa___pyx_scope_struct_4___iter__, /*tp_traverse*/
+  __pyx_tp_clear_3_sa___pyx_scope_struct_4___iter__, /*tp_clear*/
+  0, /*tp_richcompare*/
+  0, /*tp_weaklistoffset*/
+  0, /*tp_iter*/
+  0, /*tp_iternext*/
+  __pyx_methods_3_sa___pyx_scope_struct_4___iter__, /*tp_methods*/
+  0, /*tp_members*/
+  0, /*tp_getset*/
+  0, /*tp_base*/
+  0, /*tp_dict*/
+  0, /*tp_descr_get*/
+  0, /*tp_descr_set*/
+  0, /*tp_dictoffset*/
+  0, /*tp_init*/
+  0, /*tp_alloc*/
+  __pyx_tp_new_3_sa___pyx_scope_struct_4___iter__, /*tp_new*/
+  0, /*tp_free*/
+  0, /*tp_is_gc*/
+  0, /*tp_bases*/
+  0, /*tp_mro*/
+  0, /*tp_cache*/
+  0, /*tp_subclasses*/
+  0, /*tp_weaklist*/
+  0, /*tp_del*/
+  #if PY_VERSION_HEX >= 0x02060000
+  0, /*tp_version_tag*/
+  #endif
+};
+
+static PyObject *__pyx_tp_new_3_sa___pyx_scope_struct_5___str__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_3_sa___pyx_scope_struct_5___str__ *p;
+  PyObject *o = (*t->tp_alloc)(t, 0);
+  if (!o) return 0;
+  p = ((struct __pyx_obj_3_sa___pyx_scope_struct_5___str__ *)o);
+  p->__pyx_v_self = 0;
+  return o;
+}
+
+static void __pyx_tp_dealloc_3_sa___pyx_scope_struct_5___str__(PyObject *o) {
+  struct __pyx_obj_3_sa___pyx_scope_struct_5___str__ *p = (struct __pyx_obj_3_sa___pyx_scope_struct_5___str__ *)o;
+  Py_XDECREF(((PyObject *)p->__pyx_v_self));
+  (*Py_TYPE(o)->tp_free)(o);
+}
+
+static int __pyx_tp_traverse_3_sa___pyx_scope_struct_5___str__(PyObject *o, visitproc v, void *a) {
+  int e;
+  struct __pyx_obj_3_sa___pyx_scope_struct_5___str__ *p = (struct __pyx_obj_3_sa___pyx_scope_struct_5___str__ *)o;
+  if (p->__pyx_v_self) {
+    e = (*v)(((PyObject*)p->__pyx_v_self), a); if (e) return e;
+  }
+  return 0;
+}
+
+static int __pyx_tp_clear_3_sa___pyx_scope_struct_5___str__(PyObject *o) {
+  struct __pyx_obj_3_sa___pyx_scope_struct_5___str__ *p = (struct __pyx_obj_3_sa___pyx_scope_struct_5___str__ *)o;
+  PyObject* tmp;
+  tmp = ((PyObject*)p->__pyx_v_self);
+  p->__pyx_v_self = ((struct __pyx_obj_3_sa_Rule *)Py_None); Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  return 0;
+}
+
+static PyMethodDef __pyx_methods_3_sa___pyx_scope_struct_5___str__[] = {
+  {0, 0, 0, 0}
+};
+
+static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_5___str__ = {
+  0, /*nb_add*/
+  0, /*nb_subtract*/
+  0, /*nb_multiply*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_divide*/
+  #endif
+  0, /*nb_remainder*/
+  0, /*nb_divmod*/
+  0, /*nb_power*/
+  0, /*nb_negative*/
+  0, /*nb_positive*/
+  0, /*nb_absolute*/
+  0, /*nb_nonzero*/
+  0, /*nb_invert*/
+  0, /*nb_lshift*/
+  0, /*nb_rshift*/
+  0, /*nb_and*/
+  0, /*nb_xor*/
+  0, /*nb_or*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_coerce*/
+  #endif
+  0, /*nb_int*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_long*/
+  #else
+  0, /*reserved*/
+  #endif
+  0, /*nb_float*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_oct*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_hex*/
+  #endif
+  0, /*nb_inplace_add*/
+  0, /*nb_inplace_subtract*/
+  0, /*nb_inplace_multiply*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_inplace_divide*/
+  #endif
+  0, /*nb_inplace_remainder*/
+  0, /*nb_inplace_power*/
+  0, /*nb_inplace_lshift*/
+  0, /*nb_inplace_rshift*/
+  0, /*nb_inplace_and*/
+  0, /*nb_inplace_xor*/
+  0, /*nb_inplace_or*/
+  0, /*nb_floor_divide*/
+  0, /*nb_true_divide*/
+  0, /*nb_inplace_floor_divide*/
+  0, /*nb_inplace_true_divide*/
+  #if PY_VERSION_HEX >= 0x02050000
+  0, /*nb_index*/
+  #endif
+};
+
+static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_5___str__ = {
+  0, /*sq_length*/
+  0, /*sq_concat*/
+  0, /*sq_repeat*/
+  0, /*sq_item*/
+  0, /*sq_slice*/
+  0, /*sq_ass_item*/
+  0, /*sq_ass_slice*/
+  0, /*sq_contains*/
+  0, /*sq_inplace_concat*/
+  0, /*sq_inplace_repeat*/
+};
+
+static PyMappingMethods __pyx_tp_as_mapping___pyx_scope_struct_5___str__ = {
+  0, /*mp_length*/
+  0, /*mp_subscript*/
+  0, /*mp_ass_subscript*/
+};
+
+static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_5___str__ = {
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getreadbuffer*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getwritebuffer*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getsegcount*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getcharbuffer*/
+  #endif
+  #if PY_VERSION_HEX >= 0x02060000
+  0, /*bf_getbuffer*/
+  #endif
+  #if PY_VERSION_HEX >= 0x02060000
+  0, /*bf_releasebuffer*/
+  #endif
+};
+
+static PyTypeObject __pyx_type_3_sa___pyx_scope_struct_5___str__ = {
+  PyVarObject_HEAD_INIT(0, 0)
+  __Pyx_NAMESTR("_sa.__pyx_scope_struct_5___str__"), /*tp_name*/
+  sizeof(struct __pyx_obj_3_sa___pyx_scope_struct_5___str__), /*tp_basicsize*/
+  0, /*tp_itemsize*/
+  __pyx_tp_dealloc_3_sa___pyx_scope_struct_5___str__, /*tp_dealloc*/
+  0, /*tp_print*/
+  0, /*tp_getattr*/
+  0, /*tp_setattr*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*tp_compare*/
+  #else
+  0, /*reserved*/
+  #endif
+  0, /*tp_repr*/
+  &__pyx_tp_as_number___pyx_scope_struct_5___str__, /*tp_as_number*/
+  &__pyx_tp_as_sequence___pyx_scope_struct_5___str__, /*tp_as_sequence*/
+  &__pyx_tp_as_mapping___pyx_scope_struct_5___str__, /*tp_as_mapping*/
+  0, /*tp_hash*/
+  0, /*tp_call*/
+  0, /*tp_str*/
+  0, /*tp_getattro*/
+  0, /*tp_setattro*/
+  &__pyx_tp_as_buffer___pyx_scope_struct_5___str__, /*tp_as_buffer*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
+  0, /*tp_doc*/
+  __pyx_tp_traverse_3_sa___pyx_scope_struct_5___str__, /*tp_traverse*/
+  __pyx_tp_clear_3_sa___pyx_scope_struct_5___str__, /*tp_clear*/
+  0, /*tp_richcompare*/
+  0, /*tp_weaklistoffset*/
+  0, /*tp_iter*/
+  0, /*tp_iternext*/
+  __pyx_methods_3_sa___pyx_scope_struct_5___str__, /*tp_methods*/
+  0, /*tp_members*/
+  0, /*tp_getset*/
+  0, /*tp_base*/
+  0, /*tp_dict*/
+  0, /*tp_descr_get*/
+  0, /*tp_descr_set*/
+  0, /*tp_dictoffset*/
+  0, /*tp_init*/
+  0, /*tp_alloc*/
+  __pyx_tp_new_3_sa___pyx_scope_struct_5___str__, /*tp_new*/
+  0, /*tp_free*/
+  0, /*tp_is_gc*/
+  0, /*tp_bases*/
+  0, /*tp_mro*/
+  0, /*tp_cache*/
+  0, /*tp_subclasses*/
+  0, /*tp_weaklist*/
+  0, /*tp_del*/
+  #if PY_VERSION_HEX >= 0x02060000
+  0, /*tp_version_tag*/
+  #endif
+};
+
+static PyObject *__pyx_tp_new_3_sa___pyx_scope_struct_6_genexpr(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_3_sa___pyx_scope_struct_6_genexpr *p;
+  PyObject *o = (*t->tp_alloc)(t, 0);
+  if (!o) return 0;
+  p = ((struct __pyx_obj_3_sa___pyx_scope_struct_6_genexpr *)o);
+  p->__pyx_outer_scope = 0;
+  p->__pyx_v_a = 0;
+  p->__pyx_t_0 = 0;
+  return o;
+}
+
+static void __pyx_tp_dealloc_3_sa___pyx_scope_struct_6_genexpr(PyObject *o) {
+  struct __pyx_obj_3_sa___pyx_scope_struct_6_genexpr *p = (struct __pyx_obj_3_sa___pyx_scope_struct_6_genexpr *)o;
+  Py_XDECREF(((PyObject *)p->__pyx_outer_scope));
+  Py_XDECREF(p->__pyx_v_a);
+  Py_XDECREF(p->__pyx_t_0);
+  (*Py_TYPE(o)->tp_free)(o);
+}
+
+static int __pyx_tp_traverse_3_sa___pyx_scope_struct_6_genexpr(PyObject *o, visitproc v, void *a) {
+  int e;
+  struct __pyx_obj_3_sa___pyx_scope_struct_6_genexpr *p = (struct __pyx_obj_3_sa___pyx_scope_struct_6_genexpr *)o;
+  if (p->__pyx_outer_scope) {
+    e = (*v)(((PyObject*)p->__pyx_outer_scope), a); if (e) return e;
+  }
+  if (p->__pyx_v_a) {
+    e = (*v)(p->__pyx_v_a, a); if (e) return e;
+  }
+  if (p->__pyx_t_0) {
+    e = (*v)(p->__pyx_t_0, a); if (e) return e;
+  }
+  return 0;
+}
+
+static int __pyx_tp_clear_3_sa___pyx_scope_struct_6_genexpr(PyObject *o) {
+  struct __pyx_obj_3_sa___pyx_scope_struct_6_genexpr *p = (struct __pyx_obj_3_sa___pyx_scope_struct_6_genexpr *)o;
+  PyObject* tmp;
+  tmp = ((PyObject*)p->__pyx_outer_scope);
+  p->__pyx_outer_scope = ((struct __pyx_obj_3_sa___pyx_scope_struct_5___str__ *)Py_None); Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->__pyx_v_a);
+  p->__pyx_v_a = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->__pyx_t_0);
+  p->__pyx_t_0 = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  return 0;
+}
+
+static PyMethodDef __pyx_methods_3_sa___pyx_scope_struct_6_genexpr[] = {
+  {0, 0, 0, 0}
+};
+
+static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_6_genexpr = {
+  0, /*nb_add*/
+  0, /*nb_subtract*/
+  0, /*nb_multiply*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_divide*/
+  #endif
+  0, /*nb_remainder*/
+  0, /*nb_divmod*/
+  0, /*nb_power*/
+  0, /*nb_negative*/
+  0, /*nb_positive*/
+  0, /*nb_absolute*/
+  0, /*nb_nonzero*/
+  0, /*nb_invert*/
+  0, /*nb_lshift*/
+  0, /*nb_rshift*/
+  0, /*nb_and*/
+  0, /*nb_xor*/
+  0, /*nb_or*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_coerce*/
+  #endif
+  0, /*nb_int*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_long*/
+  #else
+  0, /*reserved*/
+  #endif
+  0, /*nb_float*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_oct*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_hex*/
+  #endif
+  0, /*nb_inplace_add*/
+  0, /*nb_inplace_subtract*/
+  0, /*nb_inplace_multiply*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_inplace_divide*/
+  #endif
+  0, /*nb_inplace_remainder*/
+  0, /*nb_inplace_power*/
+  0, /*nb_inplace_lshift*/
+  0, /*nb_inplace_rshift*/
+  0, /*nb_inplace_and*/
+  0, /*nb_inplace_xor*/
+  0, /*nb_inplace_or*/
+  0, /*nb_floor_divide*/
+  0, /*nb_true_divide*/
+  0, /*nb_inplace_floor_divide*/
+  0, /*nb_inplace_true_divide*/
+  #if PY_VERSION_HEX >= 0x02050000
+  0, /*nb_index*/
+  #endif
+};
+
+static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_6_genexpr = {
+  0, /*sq_length*/
+  0, /*sq_concat*/
+  0, /*sq_repeat*/
+  0, /*sq_item*/
+  0, /*sq_slice*/
+  0, /*sq_ass_item*/
+  0, /*sq_ass_slice*/
+  0, /*sq_contains*/
+  0, /*sq_inplace_concat*/
+  0, /*sq_inplace_repeat*/
+};
+
+static PyMappingMethods __pyx_tp_as_mapping___pyx_scope_struct_6_genexpr = {
+  0, /*mp_length*/
+  0, /*mp_subscript*/
+  0, /*mp_ass_subscript*/
+};
+
+static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_6_genexpr = {
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getreadbuffer*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getwritebuffer*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getsegcount*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getcharbuffer*/
+  #endif
+  #if PY_VERSION_HEX >= 0x02060000
+  0, /*bf_getbuffer*/
+  #endif
+  #if PY_VERSION_HEX >= 0x02060000
+  0, /*bf_releasebuffer*/
+  #endif
+};
+
+static PyTypeObject __pyx_type_3_sa___pyx_scope_struct_6_genexpr = {
+  PyVarObject_HEAD_INIT(0, 0)
+  __Pyx_NAMESTR("_sa.__pyx_scope_struct_6_genexpr"), /*tp_name*/
+  sizeof(struct __pyx_obj_3_sa___pyx_scope_struct_6_genexpr), /*tp_basicsize*/
+  0, /*tp_itemsize*/
+  __pyx_tp_dealloc_3_sa___pyx_scope_struct_6_genexpr, /*tp_dealloc*/
+  0, /*tp_print*/
+  0, /*tp_getattr*/
+  0, /*tp_setattr*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*tp_compare*/
+  #else
+  0, /*reserved*/
+  #endif
+  0, /*tp_repr*/
+  &__pyx_tp_as_number___pyx_scope_struct_6_genexpr, /*tp_as_number*/
+  &__pyx_tp_as_sequence___pyx_scope_struct_6_genexpr, /*tp_as_sequence*/
+  &__pyx_tp_as_mapping___pyx_scope_struct_6_genexpr, /*tp_as_mapping*/
+  0, /*tp_hash*/
+  0, /*tp_call*/
+  0, /*tp_str*/
+  0, /*tp_getattro*/
+  0, /*tp_setattro*/
+  &__pyx_tp_as_buffer___pyx_scope_struct_6_genexpr, /*tp_as_buffer*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
+  0, /*tp_doc*/
+  __pyx_tp_traverse_3_sa___pyx_scope_struct_6_genexpr, /*tp_traverse*/
+  __pyx_tp_clear_3_sa___pyx_scope_struct_6_genexpr, /*tp_clear*/
+  0, /*tp_richcompare*/
+  0, /*tp_weaklistoffset*/
+  0, /*tp_iter*/
+  0, /*tp_iternext*/
+  __pyx_methods_3_sa___pyx_scope_struct_6_genexpr, /*tp_methods*/
+  0, /*tp_members*/
+  0, /*tp_getset*/
+  0, /*tp_base*/
+  0, /*tp_dict*/
+  0, /*tp_descr_get*/
+  0, /*tp_descr_set*/
+  0, /*tp_dictoffset*/
+  0, /*tp_init*/
+  0, /*tp_alloc*/
+  __pyx_tp_new_3_sa___pyx_scope_struct_6_genexpr, /*tp_new*/
+  0, /*tp_free*/
+  0, /*tp_is_gc*/
+  0, /*tp_bases*/
+  0, /*tp_mro*/
+  0, /*tp_cache*/
+  0, /*tp_subclasses*/
+  0, /*tp_weaklist*/
+  0, /*tp_del*/
+  #if PY_VERSION_HEX >= 0x02060000
+  0, /*tp_version_tag*/
+  #endif
+};
+
+static PyObject *__pyx_tp_new_3_sa___pyx_scope_struct_7_alignments(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_3_sa___pyx_scope_struct_7_alignments *p;
+  PyObject *o = (*t->tp_alloc)(t, 0);
+  if (!o) return 0;
+  p = ((struct __pyx_obj_3_sa___pyx_scope_struct_7_alignments *)o);
+  p->__pyx_v_point = 0;
+  p->__pyx_v_self = 0;
+  p->__pyx_t_0 = 0;
+  return o;
+}
+
+static void __pyx_tp_dealloc_3_sa___pyx_scope_struct_7_alignments(PyObject *o) {
+  struct __pyx_obj_3_sa___pyx_scope_struct_7_alignments *p = (struct __pyx_obj_3_sa___pyx_scope_struct_7_alignments *)o;
+  Py_XDECREF(p->__pyx_v_point);
+  Py_XDECREF(((PyObject *)p->__pyx_v_self));
+  Py_XDECREF(p->__pyx_t_0);
+  (*Py_TYPE(o)->tp_free)(o);
+}
+
+static int __pyx_tp_traverse_3_sa___pyx_scope_struct_7_alignments(PyObject *o, visitproc v, void *a) {
+  int e;
+  struct __pyx_obj_3_sa___pyx_scope_struct_7_alignments *p = (struct __pyx_obj_3_sa___pyx_scope_struct_7_alignments *)o;
+  if (p->__pyx_v_point) {
+    e = (*v)(p->__pyx_v_point, a); if (e) return e;
+  }
+  if (p->__pyx_v_self) {
+    e = (*v)(((PyObject*)p->__pyx_v_self), a); if (e) return e;
+  }
+  if (p->__pyx_t_0) {
+    e = (*v)(p->__pyx_t_0, a); if (e) return e;
+  }
+  return 0;
+}
+
+static int __pyx_tp_clear_3_sa___pyx_scope_struct_7_alignments(PyObject *o) {
+  struct __pyx_obj_3_sa___pyx_scope_struct_7_alignments *p = (struct __pyx_obj_3_sa___pyx_scope_struct_7_alignments *)o;
+  PyObject* tmp;
+  tmp = ((PyObject*)p->__pyx_v_point);
+  p->__pyx_v_point = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->__pyx_v_self);
+  p->__pyx_v_self = ((struct __pyx_obj_3_sa_Rule *)Py_None); Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->__pyx_t_0);
+  p->__pyx_t_0 = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  return 0;
+}
+
+static PyMethodDef __pyx_methods_3_sa___pyx_scope_struct_7_alignments[] = {
+  {0, 0, 0, 0}
+};
+
+static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_7_alignments = {
+  0, /*nb_add*/
+  0, /*nb_subtract*/
+  0, /*nb_multiply*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_divide*/
+  #endif
+  0, /*nb_remainder*/
+  0, /*nb_divmod*/
+  0, /*nb_power*/
+  0, /*nb_negative*/
+  0, /*nb_positive*/
+  0, /*nb_absolute*/
+  0, /*nb_nonzero*/
+  0, /*nb_invert*/
+  0, /*nb_lshift*/
+  0, /*nb_rshift*/
+  0, /*nb_and*/
+  0, /*nb_xor*/
+  0, /*nb_or*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_coerce*/
+  #endif
+  0, /*nb_int*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_long*/
+  #else
+  0, /*reserved*/
+  #endif
+  0, /*nb_float*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_oct*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_hex*/
+  #endif
+  0, /*nb_inplace_add*/
+  0, /*nb_inplace_subtract*/
+  0, /*nb_inplace_multiply*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_inplace_divide*/
+  #endif
+  0, /*nb_inplace_remainder*/
+  0, /*nb_inplace_power*/
+  0, /*nb_inplace_lshift*/
+  0, /*nb_inplace_rshift*/
+  0, /*nb_inplace_and*/
+  0, /*nb_inplace_xor*/
+  0, /*nb_inplace_or*/
+  0, /*nb_floor_divide*/
+  0, /*nb_true_divide*/
+  0, /*nb_inplace_floor_divide*/
+  0, /*nb_inplace_true_divide*/
+  #if PY_VERSION_HEX >= 0x02050000
+  0, /*nb_index*/
+  #endif
+};
+
+static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_7_alignments = {
+  0, /*sq_length*/
+  0, /*sq_concat*/
+  0, /*sq_repeat*/
+  0, /*sq_item*/
+  0, /*sq_slice*/
+  0, /*sq_ass_item*/
+  0, /*sq_ass_slice*/
+  0, /*sq_contains*/
+  0, /*sq_inplace_concat*/
+  0, /*sq_inplace_repeat*/
+};
+
+static PyMappingMethods __pyx_tp_as_mapping___pyx_scope_struct_7_alignments = {
+  0, /*mp_length*/
+  0, /*mp_subscript*/
+  0, /*mp_ass_subscript*/
+};
+
+static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_7_alignments = {
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getreadbuffer*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getwritebuffer*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getsegcount*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getcharbuffer*/
+  #endif
+  #if PY_VERSION_HEX >= 0x02060000
+  0, /*bf_getbuffer*/
+  #endif
+  #if PY_VERSION_HEX >= 0x02060000
+  0, /*bf_releasebuffer*/
+  #endif
+};
+
+static PyTypeObject __pyx_type_3_sa___pyx_scope_struct_7_alignments = {
+  PyVarObject_HEAD_INIT(0, 0)
+  __Pyx_NAMESTR("_sa.__pyx_scope_struct_7_alignments"), /*tp_name*/
+  sizeof(struct __pyx_obj_3_sa___pyx_scope_struct_7_alignments), /*tp_basicsize*/
+  0, /*tp_itemsize*/
+  __pyx_tp_dealloc_3_sa___pyx_scope_struct_7_alignments, /*tp_dealloc*/
+  0, /*tp_print*/
+  0, /*tp_getattr*/
+  0, /*tp_setattr*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*tp_compare*/
+  #else
+  0, /*reserved*/
+  #endif
+  0, /*tp_repr*/
+  &__pyx_tp_as_number___pyx_scope_struct_7_alignments, /*tp_as_number*/
+  &__pyx_tp_as_sequence___pyx_scope_struct_7_alignments, /*tp_as_sequence*/
+  &__pyx_tp_as_mapping___pyx_scope_struct_7_alignments, /*tp_as_mapping*/
+  0, /*tp_hash*/
+  0, /*tp_call*/
+  0, /*tp_str*/
+  0, /*tp_getattro*/
+  0, /*tp_setattro*/
+  &__pyx_tp_as_buffer___pyx_scope_struct_7_alignments, /*tp_as_buffer*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
+  0, /*tp_doc*/
+  __pyx_tp_traverse_3_sa___pyx_scope_struct_7_alignments, /*tp_traverse*/
+  __pyx_tp_clear_3_sa___pyx_scope_struct_7_alignments, /*tp_clear*/
+  0, /*tp_richcompare*/
+  0, /*tp_weaklistoffset*/
+  0, /*tp_iter*/
+  0, /*tp_iternext*/
+  __pyx_methods_3_sa___pyx_scope_struct_7_alignments, /*tp_methods*/
+  0, /*tp_members*/
+  0, /*tp_getset*/
+  0, /*tp_base*/
+  0, /*tp_dict*/
+  0, /*tp_descr_get*/
+  0, /*tp_descr_set*/
+  0, /*tp_dictoffset*/
+  0, /*tp_init*/
+  0, /*tp_alloc*/
+  __pyx_tp_new_3_sa___pyx_scope_struct_7_alignments, /*tp_new*/
+  0, /*tp_free*/
+  0, /*tp_is_gc*/
+  0, /*tp_bases*/
+  0, /*tp_mro*/
+  0, /*tp_cache*/
+  0, /*tp_subclasses*/
+  0, /*tp_weaklist*/
+  0, /*tp_del*/
+  #if PY_VERSION_HEX >= 0x02060000
+  0, /*tp_version_tag*/
+  #endif
+};
+
+static PyObject *__pyx_tp_new_3_sa___pyx_scope_struct_8___iter__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_3_sa___pyx_scope_struct_8___iter__ *p;
+  PyObject *o = (*t->tp_alloc)(t, 0);
+  if (!o) return 0;
+  p = ((struct __pyx_obj_3_sa___pyx_scope_struct_8___iter__ *)o);
+  p->__pyx_v_self = 0;
+  return o;
+}
+
+static void __pyx_tp_dealloc_3_sa___pyx_scope_struct_8___iter__(PyObject *o) {
+  struct __pyx_obj_3_sa___pyx_scope_struct_8___iter__ *p = (struct __pyx_obj_3_sa___pyx_scope_struct_8___iter__ *)o;
+  Py_XDECREF(((PyObject *)p->__pyx_v_self));
+  (*Py_TYPE(o)->tp_free)(o);
+}
+
+static int __pyx_tp_traverse_3_sa___pyx_scope_struct_8___iter__(PyObject *o, visitproc v, void *a) {
+  int e;
+  struct __pyx_obj_3_sa___pyx_scope_struct_8___iter__ *p = (struct __pyx_obj_3_sa___pyx_scope_struct_8___iter__ *)o;
+  if (p->__pyx_v_self) {
+    e = (*v)(((PyObject*)p->__pyx_v_self), a); if (e) return e;
+  }
+  return 0;
+}
+
+static int __pyx_tp_clear_3_sa___pyx_scope_struct_8___iter__(PyObject *o) {
+  struct __pyx_obj_3_sa___pyx_scope_struct_8___iter__ *p = (struct __pyx_obj_3_sa___pyx_scope_struct_8___iter__ *)o;
+  PyObject* tmp;
+  tmp = ((PyObject*)p->__pyx_v_self);
+  p->__pyx_v_self = ((struct __pyx_obj_3_sa_FeatureVector *)Py_None); Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  return 0;
+}
+
+static PyMethodDef __pyx_methods_3_sa___pyx_scope_struct_8___iter__[] = {
+  {0, 0, 0, 0}
+};
+
+static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_8___iter__ = {
+  0, /*nb_add*/
+  0, /*nb_subtract*/
+  0, /*nb_multiply*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_divide*/
+  #endif
+  0, /*nb_remainder*/
+  0, /*nb_divmod*/
+  0, /*nb_power*/
+  0, /*nb_negative*/
+  0, /*nb_positive*/
+  0, /*nb_absolute*/
+  0, /*nb_nonzero*/
+  0, /*nb_invert*/
+  0, /*nb_lshift*/
+  0, /*nb_rshift*/
+  0, /*nb_and*/
+  0, /*nb_xor*/
+  0, /*nb_or*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_coerce*/
+  #endif
+  0, /*nb_int*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_long*/
+  #else
+  0, /*reserved*/
+  #endif
+  0, /*nb_float*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_oct*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_hex*/
+  #endif
+  0, /*nb_inplace_add*/
+  0, /*nb_inplace_subtract*/
+  0, /*nb_inplace_multiply*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_inplace_divide*/
+  #endif
+  0, /*nb_inplace_remainder*/
+  0, /*nb_inplace_power*/
+  0, /*nb_inplace_lshift*/
+  0, /*nb_inplace_rshift*/
+  0, /*nb_inplace_and*/
+  0, /*nb_inplace_xor*/
+  0, /*nb_inplace_or*/
+  0, /*nb_floor_divide*/
+  0, /*nb_true_divide*/
+  0, /*nb_inplace_floor_divide*/
+  0, /*nb_inplace_true_divide*/
+  #if PY_VERSION_HEX >= 0x02050000
+  0, /*nb_index*/
+  #endif
+};
+
+static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_8___iter__ = {
+  0, /*sq_length*/
+  0, /*sq_concat*/
+  0, /*sq_repeat*/
+  0, /*sq_item*/
+  0, /*sq_slice*/
+  0, /*sq_ass_item*/
+  0, /*sq_ass_slice*/
+  0, /*sq_contains*/
+  0, /*sq_inplace_concat*/
+  0, /*sq_inplace_repeat*/
+};
+
+static PyMappingMethods __pyx_tp_as_mapping___pyx_scope_struct_8___iter__ = {
+  0, /*mp_length*/
+  0, /*mp_subscript*/
+  0, /*mp_ass_subscript*/
+};
+
+static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_8___iter__ = {
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getreadbuffer*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getwritebuffer*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getsegcount*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getcharbuffer*/
+  #endif
+  #if PY_VERSION_HEX >= 0x02060000
+  0, /*bf_getbuffer*/
+  #endif
+  #if PY_VERSION_HEX >= 0x02060000
+  0, /*bf_releasebuffer*/
+  #endif
+};
+
+static PyTypeObject __pyx_type_3_sa___pyx_scope_struct_8___iter__ = {
+  PyVarObject_HEAD_INIT(0, 0)
+  __Pyx_NAMESTR("_sa.__pyx_scope_struct_8___iter__"), /*tp_name*/
+  sizeof(struct __pyx_obj_3_sa___pyx_scope_struct_8___iter__), /*tp_basicsize*/
+  0, /*tp_itemsize*/
+  __pyx_tp_dealloc_3_sa___pyx_scope_struct_8___iter__, /*tp_dealloc*/
+  0, /*tp_print*/
+  0, /*tp_getattr*/
+  0, /*tp_setattr*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*tp_compare*/
+  #else
+  0, /*reserved*/
+  #endif
+  0, /*tp_repr*/
+  &__pyx_tp_as_number___pyx_scope_struct_8___iter__, /*tp_as_number*/
+  &__pyx_tp_as_sequence___pyx_scope_struct_8___iter__, /*tp_as_sequence*/
+  &__pyx_tp_as_mapping___pyx_scope_struct_8___iter__, /*tp_as_mapping*/
+  0, /*tp_hash*/
+  0, /*tp_call*/
+  0, /*tp_str*/
+  0, /*tp_getattro*/
+  0, /*tp_setattro*/
+  &__pyx_tp_as_buffer___pyx_scope_struct_8___iter__, /*tp_as_buffer*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
+  0, /*tp_doc*/
+  __pyx_tp_traverse_3_sa___pyx_scope_struct_8___iter__, /*tp_traverse*/
+  __pyx_tp_clear_3_sa___pyx_scope_struct_8___iter__, /*tp_clear*/
+  0, /*tp_richcompare*/
+  0, /*tp_weaklistoffset*/
+  0, /*tp_iter*/
+  0, /*tp_iternext*/
+  __pyx_methods_3_sa___pyx_scope_struct_8___iter__, /*tp_methods*/
+  0, /*tp_members*/
+  0, /*tp_getset*/
+  0, /*tp_base*/
+  0, /*tp_dict*/
+  0, /*tp_descr_get*/
+  0, /*tp_descr_set*/
+  0, /*tp_dictoffset*/
+  0, /*tp_init*/
+  0, /*tp_alloc*/
+  __pyx_tp_new_3_sa___pyx_scope_struct_8___iter__, /*tp_new*/
+  0, /*tp_free*/
+  0, /*tp_is_gc*/
+  0, /*tp_bases*/
+  0, /*tp_mro*/
+  0, /*tp_cache*/
+  0, /*tp_subclasses*/
+  0, /*tp_weaklist*/
+  0, /*tp_del*/
+  #if PY_VERSION_HEX >= 0x02060000
+  0, /*tp_version_tag*/
+  #endif
+};
+
+static PyObject *__pyx_tp_new_3_sa___pyx_scope_struct_9___str__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_3_sa___pyx_scope_struct_9___str__ *p;
+  PyObject *o = (*t->tp_alloc)(t, 0);
+  if (!o) return 0;
+  p = ((struct __pyx_obj_3_sa___pyx_scope_struct_9___str__ *)o);
+  p->__pyx_v_self = 0;
+  return o;
+}
+
+static void __pyx_tp_dealloc_3_sa___pyx_scope_struct_9___str__(PyObject *o) {
+  struct __pyx_obj_3_sa___pyx_scope_struct_9___str__ *p = (struct __pyx_obj_3_sa___pyx_scope_struct_9___str__ *)o;
+  Py_XDECREF(((PyObject *)p->__pyx_v_self));
+  (*Py_TYPE(o)->tp_free)(o);
+}
+
+static int __pyx_tp_traverse_3_sa___pyx_scope_struct_9___str__(PyObject *o, visitproc v, void *a) {
+  int e;
+  struct __pyx_obj_3_sa___pyx_scope_struct_9___str__ *p = (struct __pyx_obj_3_sa___pyx_scope_struct_9___str__ *)o;
+  if (p->__pyx_v_self) {
+    e = (*v)(((PyObject*)p->__pyx_v_self), a); if (e) return e;
+  }
+  return 0;
+}
+
+static int __pyx_tp_clear_3_sa___pyx_scope_struct_9___str__(PyObject *o) {
+  struct __pyx_obj_3_sa___pyx_scope_struct_9___str__ *p = (struct __pyx_obj_3_sa___pyx_scope_struct_9___str__ *)o;
+  PyObject* tmp;
+  tmp = ((PyObject*)p->__pyx_v_self);
+  p->__pyx_v_self = ((struct __pyx_obj_3_sa_FeatureVector *)Py_None); Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  return 0;
+}
+
+static PyMethodDef __pyx_methods_3_sa___pyx_scope_struct_9___str__[] = {
   {0, 0, 0, 0}
 };
 
-static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_3___iter__ = {
+static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_9___str__ = {
   0, /*nb_add*/
   0, /*nb_subtract*/
   0, /*nb_multiply*/
@@ -59828,7 +63310,7 @@ static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_3___iter__ = {
   #endif
 };
 
-static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_3___iter__ = {
+static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_9___str__ = {
   0, /*sq_length*/
   0, /*sq_concat*/
   0, /*sq_repeat*/
@@ -59841,13 +63323,13 @@ static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_3___iter__ = {
   0, /*sq_inplace_repeat*/
 };
 
-static PyMappingMethods __pyx_tp_as_mapping___pyx_scope_struct_3___iter__ = {
+static PyMappingMethods __pyx_tp_as_mapping___pyx_scope_struct_9___str__ = {
   0, /*mp_length*/
   0, /*mp_subscript*/
   0, /*mp_ass_subscript*/
 };
 
-static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_3___iter__ = {
+static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_9___str__ = {
   #if PY_MAJOR_VERSION < 3
   0, /*bf_getreadbuffer*/
   #endif
@@ -59868,12 +63350,12 @@ static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_3___iter__ = {
   #endif
 };
 
-static PyTypeObject __pyx_type_3_sa___pyx_scope_struct_3___iter__ = {
+static PyTypeObject __pyx_type_3_sa___pyx_scope_struct_9___str__ = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_sa.__pyx_scope_struct_3___iter__"), /*tp_name*/
-  sizeof(struct __pyx_obj_3_sa___pyx_scope_struct_3___iter__), /*tp_basicsize*/
+  __Pyx_NAMESTR("_sa.__pyx_scope_struct_9___str__"), /*tp_name*/
+  sizeof(struct __pyx_obj_3_sa___pyx_scope_struct_9___str__), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_3_sa___pyx_scope_struct_3___iter__, /*tp_dealloc*/
+  __pyx_tp_dealloc_3_sa___pyx_scope_struct_9___str__, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -59883,24 +63365,24 @@ static PyTypeObject __pyx_type_3_sa___pyx_scope_struct_3___iter__ = {
   0, /*reserved*/
   #endif
   0, /*tp_repr*/
-  &__pyx_tp_as_number___pyx_scope_struct_3___iter__, /*tp_as_number*/
-  &__pyx_tp_as_sequence___pyx_scope_struct_3___iter__, /*tp_as_sequence*/
-  &__pyx_tp_as_mapping___pyx_scope_struct_3___iter__, /*tp_as_mapping*/
+  &__pyx_tp_as_number___pyx_scope_struct_9___str__, /*tp_as_number*/
+  &__pyx_tp_as_sequence___pyx_scope_struct_9___str__, /*tp_as_sequence*/
+  &__pyx_tp_as_mapping___pyx_scope_struct_9___str__, /*tp_as_mapping*/
   0, /*tp_hash*/
   0, /*tp_call*/
   0, /*tp_str*/
   0, /*tp_getattro*/
   0, /*tp_setattro*/
-  &__pyx_tp_as_buffer___pyx_scope_struct_3___iter__, /*tp_as_buffer*/
+  &__pyx_tp_as_buffer___pyx_scope_struct_9___str__, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_3_sa___pyx_scope_struct_3___iter__, /*tp_traverse*/
-  __pyx_tp_clear_3_sa___pyx_scope_struct_3___iter__, /*tp_clear*/
+  __pyx_tp_traverse_3_sa___pyx_scope_struct_9___str__, /*tp_traverse*/
+  __pyx_tp_clear_3_sa___pyx_scope_struct_9___str__, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_3_sa___pyx_scope_struct_3___iter__, /*tp_methods*/
+  __pyx_methods_3_sa___pyx_scope_struct_9___str__, /*tp_methods*/
   0, /*tp_members*/
   0, /*tp_getset*/
   0, /*tp_base*/
@@ -59910,7 +63392,7 @@ static PyTypeObject __pyx_type_3_sa___pyx_scope_struct_3___iter__ = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_3_sa___pyx_scope_struct_3___iter__, /*tp_new*/
+  __pyx_tp_new_3_sa___pyx_scope_struct_9___str__, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -59924,11 +63406,218 @@ static PyTypeObject __pyx_type_3_sa___pyx_scope_struct_3___iter__ = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_3_sa___pyx_scope_struct_4_input(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_3_sa___pyx_scope_struct_4_input *p;
+static PyObject *__pyx_tp_new_3_sa___pyx_scope_struct_10_genexpr(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_3_sa___pyx_scope_struct_10_genexpr *p;
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
-  p = ((struct __pyx_obj_3_sa___pyx_scope_struct_4_input *)o);
+  p = ((struct __pyx_obj_3_sa___pyx_scope_struct_10_genexpr *)o);
+  p->__pyx_outer_scope = 0;
+  p->__pyx_v_feat = 0;
+  p->__pyx_t_0 = 0;
+  return o;
+}
+
+static void __pyx_tp_dealloc_3_sa___pyx_scope_struct_10_genexpr(PyObject *o) {
+  struct __pyx_obj_3_sa___pyx_scope_struct_10_genexpr *p = (struct __pyx_obj_3_sa___pyx_scope_struct_10_genexpr *)o;
+  Py_XDECREF(((PyObject *)p->__pyx_outer_scope));
+  Py_XDECREF(p->__pyx_v_feat);
+  Py_XDECREF(p->__pyx_t_0);
+  (*Py_TYPE(o)->tp_free)(o);
+}
+
+static int __pyx_tp_traverse_3_sa___pyx_scope_struct_10_genexpr(PyObject *o, visitproc v, void *a) {
+  int e;
+  struct __pyx_obj_3_sa___pyx_scope_struct_10_genexpr *p = (struct __pyx_obj_3_sa___pyx_scope_struct_10_genexpr *)o;
+  if (p->__pyx_outer_scope) {
+    e = (*v)(((PyObject*)p->__pyx_outer_scope), a); if (e) return e;
+  }
+  if (p->__pyx_v_feat) {
+    e = (*v)(p->__pyx_v_feat, a); if (e) return e;
+  }
+  if (p->__pyx_t_0) {
+    e = (*v)(p->__pyx_t_0, a); if (e) return e;
+  }
+  return 0;
+}
+
+static int __pyx_tp_clear_3_sa___pyx_scope_struct_10_genexpr(PyObject *o) {
+  struct __pyx_obj_3_sa___pyx_scope_struct_10_genexpr *p = (struct __pyx_obj_3_sa___pyx_scope_struct_10_genexpr *)o;
+  PyObject* tmp;
+  tmp = ((PyObject*)p->__pyx_outer_scope);
+  p->__pyx_outer_scope = ((struct __pyx_obj_3_sa___pyx_scope_struct_9___str__ *)Py_None); Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->__pyx_v_feat);
+  p->__pyx_v_feat = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->__pyx_t_0);
+  p->__pyx_t_0 = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  return 0;
+}
+
+static PyMethodDef __pyx_methods_3_sa___pyx_scope_struct_10_genexpr[] = {
+  {0, 0, 0, 0}
+};
+
+static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_10_genexpr = {
+  0, /*nb_add*/
+  0, /*nb_subtract*/
+  0, /*nb_multiply*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_divide*/
+  #endif
+  0, /*nb_remainder*/
+  0, /*nb_divmod*/
+  0, /*nb_power*/
+  0, /*nb_negative*/
+  0, /*nb_positive*/
+  0, /*nb_absolute*/
+  0, /*nb_nonzero*/
+  0, /*nb_invert*/
+  0, /*nb_lshift*/
+  0, /*nb_rshift*/
+  0, /*nb_and*/
+  0, /*nb_xor*/
+  0, /*nb_or*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_coerce*/
+  #endif
+  0, /*nb_int*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_long*/
+  #else
+  0, /*reserved*/
+  #endif
+  0, /*nb_float*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_oct*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_hex*/
+  #endif
+  0, /*nb_inplace_add*/
+  0, /*nb_inplace_subtract*/
+  0, /*nb_inplace_multiply*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_inplace_divide*/
+  #endif
+  0, /*nb_inplace_remainder*/
+  0, /*nb_inplace_power*/
+  0, /*nb_inplace_lshift*/
+  0, /*nb_inplace_rshift*/
+  0, /*nb_inplace_and*/
+  0, /*nb_inplace_xor*/
+  0, /*nb_inplace_or*/
+  0, /*nb_floor_divide*/
+  0, /*nb_true_divide*/
+  0, /*nb_inplace_floor_divide*/
+  0, /*nb_inplace_true_divide*/
+  #if PY_VERSION_HEX >= 0x02050000
+  0, /*nb_index*/
+  #endif
+};
+
+static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_10_genexpr = {
+  0, /*sq_length*/
+  0, /*sq_concat*/
+  0, /*sq_repeat*/
+  0, /*sq_item*/
+  0, /*sq_slice*/
+  0, /*sq_ass_item*/
+  0, /*sq_ass_slice*/
+  0, /*sq_contains*/
+  0, /*sq_inplace_concat*/
+  0, /*sq_inplace_repeat*/
+};
+
+static PyMappingMethods __pyx_tp_as_mapping___pyx_scope_struct_10_genexpr = {
+  0, /*mp_length*/
+  0, /*mp_subscript*/
+  0, /*mp_ass_subscript*/
+};
+
+static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_10_genexpr = {
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getreadbuffer*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getwritebuffer*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getsegcount*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getcharbuffer*/
+  #endif
+  #if PY_VERSION_HEX >= 0x02060000
+  0, /*bf_getbuffer*/
+  #endif
+  #if PY_VERSION_HEX >= 0x02060000
+  0, /*bf_releasebuffer*/
+  #endif
+};
+
+static PyTypeObject __pyx_type_3_sa___pyx_scope_struct_10_genexpr = {
+  PyVarObject_HEAD_INIT(0, 0)
+  __Pyx_NAMESTR("_sa.__pyx_scope_struct_10_genexpr"), /*tp_name*/
+  sizeof(struct __pyx_obj_3_sa___pyx_scope_struct_10_genexpr), /*tp_basicsize*/
+  0, /*tp_itemsize*/
+  __pyx_tp_dealloc_3_sa___pyx_scope_struct_10_genexpr, /*tp_dealloc*/
+  0, /*tp_print*/
+  0, /*tp_getattr*/
+  0, /*tp_setattr*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*tp_compare*/
+  #else
+  0, /*reserved*/
+  #endif
+  0, /*tp_repr*/
+  &__pyx_tp_as_number___pyx_scope_struct_10_genexpr, /*tp_as_number*/
+  &__pyx_tp_as_sequence___pyx_scope_struct_10_genexpr, /*tp_as_sequence*/
+  &__pyx_tp_as_mapping___pyx_scope_struct_10_genexpr, /*tp_as_mapping*/
+  0, /*tp_hash*/
+  0, /*tp_call*/
+  0, /*tp_str*/
+  0, /*tp_getattro*/
+  0, /*tp_setattro*/
+  &__pyx_tp_as_buffer___pyx_scope_struct_10_genexpr, /*tp_as_buffer*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
+  0, /*tp_doc*/
+  __pyx_tp_traverse_3_sa___pyx_scope_struct_10_genexpr, /*tp_traverse*/
+  __pyx_tp_clear_3_sa___pyx_scope_struct_10_genexpr, /*tp_clear*/
+  0, /*tp_richcompare*/
+  0, /*tp_weaklistoffset*/
+  0, /*tp_iter*/
+  0, /*tp_iternext*/
+  __pyx_methods_3_sa___pyx_scope_struct_10_genexpr, /*tp_methods*/
+  0, /*tp_members*/
+  0, /*tp_getset*/
+  0, /*tp_base*/
+  0, /*tp_dict*/
+  0, /*tp_descr_get*/
+  0, /*tp_descr_set*/
+  0, /*tp_dictoffset*/
+  0, /*tp_init*/
+  0, /*tp_alloc*/
+  __pyx_tp_new_3_sa___pyx_scope_struct_10_genexpr, /*tp_new*/
+  0, /*tp_free*/
+  0, /*tp_is_gc*/
+  0, /*tp_bases*/
+  0, /*tp_mro*/
+  0, /*tp_cache*/
+  0, /*tp_subclasses*/
+  0, /*tp_weaklist*/
+  0, /*tp_del*/
+  #if PY_VERSION_HEX >= 0x02060000
+  0, /*tp_version_tag*/
+  #endif
+};
+
+static PyObject *__pyx_tp_new_3_sa___pyx_scope_struct_11_input(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_3_sa___pyx_scope_struct_11_input *p;
+  PyObject *o = (*t->tp_alloc)(t, 0);
+  if (!o) return 0;
+  p = ((struct __pyx_obj_3_sa___pyx_scope_struct_11_input *)o);
   p->__pyx_v_alignment = 0;
   p->__pyx_v_als = 0;
   p->__pyx_v_alslist = 0;
@@ -59942,8 +63631,6 @@ static PyObject *__pyx_tp_new_3_sa___pyx_scope_struct_4_input(PyTypeObject *t, C
   p->__pyx_v_extract_stop = 0;
   p->__pyx_v_extracts = 0;
   p->__pyx_v_f = 0;
-  p->__pyx_v_f_margin = 0;
-  p->__pyx_v_fals = 0;
   p->__pyx_v_fcount = 0;
   p->__pyx_v_fphrases = 0;
   p->__pyx_v_frontier = 0;
@@ -59952,8 +63639,6 @@ static PyObject *__pyx_tp_new_3_sa___pyx_scope_struct_4_input(PyTypeObject *t, C
   p->__pyx_v_hiero_phrase = 0;
   p->__pyx_v_is_shadow_path = 0;
   p->__pyx_v_key = 0;
-  p->__pyx_v_model = 0;
-  p->__pyx_v_models = 0;
   p->__pyx_v_new_frontier = 0;
   p->__pyx_v_new_node = 0;
   p->__pyx_v_next_states = 0;
@@ -59982,8 +63667,8 @@ static PyObject *__pyx_tp_new_3_sa___pyx_scope_struct_4_input(PyTypeObject *t, C
   return o;
 }
 
-static void __pyx_tp_dealloc_3_sa___pyx_scope_struct_4_input(PyObject *o) {
-  struct __pyx_obj_3_sa___pyx_scope_struct_4_input *p = (struct __pyx_obj_3_sa___pyx_scope_struct_4_input *)o;
+static void __pyx_tp_dealloc_3_sa___pyx_scope_struct_11_input(PyObject *o) {
+  struct __pyx_obj_3_sa___pyx_scope_struct_11_input *p = (struct __pyx_obj_3_sa___pyx_scope_struct_11_input *)o;
   Py_XDECREF(p->__pyx_v_alignment);
   Py_XDECREF(p->__pyx_v_als);
   Py_XDECREF(p->__pyx_v_alslist);
@@ -59997,18 +63682,14 @@ static void __pyx_tp_dealloc_3_sa___pyx_scope_struct_4_input(PyObject *o) {
   Py_XDECREF(p->__pyx_v_extract_stop);
   Py_XDECREF(((PyObject *)p->__pyx_v_extracts));
   Py_XDECREF(p->__pyx_v_f);
-  Py_XDECREF(p->__pyx_v_f_margin);
-  Py_XDECREF(((PyObject *)p->__pyx_v_fals));
-  Py_XDECREF(((PyObject *)p->__pyx_v_fcount));
-  Py_XDECREF(((PyObject *)p->__pyx_v_fphrases));
+  Py_XDECREF(p->__pyx_v_fcount);
+  Py_XDECREF(p->__pyx_v_fphrases);
   Py_XDECREF(((PyObject *)p->__pyx_v_frontier));
   Py_XDECREF(p->__pyx_v_frontier_nodes);
   Py_XDECREF(p->__pyx_v_fwords);
   Py_XDECREF(((PyObject *)p->__pyx_v_hiero_phrase));
   Py_XDECREF(p->__pyx_v_is_shadow_path);
   Py_XDECREF(((PyObject *)p->__pyx_v_key));
-  Py_XDECREF(p->__pyx_v_model);
-  Py_XDECREF(p->__pyx_v_models);
   Py_XDECREF(((PyObject *)p->__pyx_v_new_frontier));
   Py_XDECREF(p->__pyx_v_new_node);
   Py_XDECREF(((PyObject *)p->__pyx_v_next_states));
@@ -60037,9 +63718,9 @@ static void __pyx_tp_dealloc_3_sa___pyx_scope_struct_4_input(PyObject *o) {
   (*Py_TYPE(o)->tp_free)(o);
 }
 
-static int __pyx_tp_traverse_3_sa___pyx_scope_struct_4_input(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_3_sa___pyx_scope_struct_11_input(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_3_sa___pyx_scope_struct_4_input *p = (struct __pyx_obj_3_sa___pyx_scope_struct_4_input *)o;
+  struct __pyx_obj_3_sa___pyx_scope_struct_11_input *p = (struct __pyx_obj_3_sa___pyx_scope_struct_11_input *)o;
   if (p->__pyx_v_alignment) {
     e = (*v)(p->__pyx_v_alignment, a); if (e) return e;
   }
@@ -60079,12 +63760,6 @@ static int __pyx_tp_traverse_3_sa___pyx_scope_struct_4_input(PyObject *o, visitp
   if (p->__pyx_v_f) {
     e = (*v)(p->__pyx_v_f, a); if (e) return e;
   }
-  if (p->__pyx_v_f_margin) {
-    e = (*v)(p->__pyx_v_f_margin, a); if (e) return e;
-  }
-  if (p->__pyx_v_fals) {
-    e = (*v)(p->__pyx_v_fals, a); if (e) return e;
-  }
   if (p->__pyx_v_fcount) {
     e = (*v)(p->__pyx_v_fcount, a); if (e) return e;
   }
@@ -60109,12 +63784,6 @@ static int __pyx_tp_traverse_3_sa___pyx_scope_struct_4_input(PyObject *o, visitp
   if (p->__pyx_v_key) {
     e = (*v)(p->__pyx_v_key, a); if (e) return e;
   }
-  if (p->__pyx_v_model) {
-    e = (*v)(p->__pyx_v_model, a); if (e) return e;
-  }
-  if (p->__pyx_v_models) {
-    e = (*v)(p->__pyx_v_models, a); if (e) return e;
-  }
   if (p->__pyx_v_new_frontier) {
     e = (*v)(p->__pyx_v_new_frontier, a); if (e) return e;
   }
@@ -60152,7 +63821,7 @@ static int __pyx_tp_traverse_3_sa___pyx_scope_struct_4_input(PyObject *o, visitp
     e = (*v)(((PyObject*)p->__pyx_v_sample), a); if (e) return e;
   }
   if (p->__pyx_v_scores) {
-    e = (*v)(p->__pyx_v_scores, a); if (e) return e;
+    e = (*v)(((PyObject*)p->__pyx_v_scores), a); if (e) return e;
   }
   if (p->__pyx_v_self) {
     e = (*v)(((PyObject*)p->__pyx_v_self), a); if (e) return e;
@@ -60193,8 +63862,8 @@ static int __pyx_tp_traverse_3_sa___pyx_scope_struct_4_input(PyObject *o, visitp
   return 0;
 }
 
-static int __pyx_tp_clear_3_sa___pyx_scope_struct_4_input(PyObject *o) {
-  struct __pyx_obj_3_sa___pyx_scope_struct_4_input *p = (struct __pyx_obj_3_sa___pyx_scope_struct_4_input *)o;
+static int __pyx_tp_clear_3_sa___pyx_scope_struct_11_input(PyObject *o) {
+  struct __pyx_obj_3_sa___pyx_scope_struct_11_input *p = (struct __pyx_obj_3_sa___pyx_scope_struct_11_input *)o;
   PyObject* tmp;
   tmp = ((PyObject*)p->__pyx_v_alignment);
   p->__pyx_v_alignment = Py_None; Py_INCREF(Py_None);
@@ -60235,17 +63904,11 @@ static int __pyx_tp_clear_3_sa___pyx_scope_struct_4_input(PyObject *o) {
   tmp = ((PyObject*)p->__pyx_v_f);
   p->__pyx_v_f = Py_None; Py_INCREF(Py_None);
   Py_XDECREF(tmp);
-  tmp = ((PyObject*)p->__pyx_v_f_margin);
-  p->__pyx_v_f_margin = Py_None; Py_INCREF(Py_None);
-  Py_XDECREF(tmp);
-  tmp = ((PyObject*)p->__pyx_v_fals);
-  p->__pyx_v_fals = ((PyObject*)Py_None); Py_INCREF(Py_None);
-  Py_XDECREF(tmp);
   tmp = ((PyObject*)p->__pyx_v_fcount);
-  p->__pyx_v_fcount = ((PyObject*)Py_None); Py_INCREF(Py_None);
+  p->__pyx_v_fcount = Py_None; Py_INCREF(Py_None);
   Py_XDECREF(tmp);
   tmp = ((PyObject*)p->__pyx_v_fphrases);
-  p->__pyx_v_fphrases = ((PyObject*)Py_None); Py_INCREF(Py_None);
+  p->__pyx_v_fphrases = Py_None; Py_INCREF(Py_None);
   Py_XDECREF(tmp);
   tmp = ((PyObject*)p->__pyx_v_frontier);
   p->__pyx_v_frontier = ((PyObject*)Py_None); Py_INCREF(Py_None);
@@ -60265,12 +63928,6 @@ static int __pyx_tp_clear_3_sa___pyx_scope_struct_4_input(PyObject *o) {
   tmp = ((PyObject*)p->__pyx_v_key);
   p->__pyx_v_key = ((PyObject*)Py_None); Py_INCREF(Py_None);
   Py_XDECREF(tmp);
-  tmp = ((PyObject*)p->__pyx_v_model);
-  p->__pyx_v_model = Py_None; Py_INCREF(Py_None);
-  Py_XDECREF(tmp);
-  tmp = ((PyObject*)p->__pyx_v_models);
-  p->__pyx_v_models = Py_None; Py_INCREF(Py_None);
-  Py_XDECREF(tmp);
   tmp = ((PyObject*)p->__pyx_v_new_frontier);
   p->__pyx_v_new_frontier = ((PyObject*)Py_None); Py_INCREF(Py_None);
   Py_XDECREF(tmp);
@@ -60308,7 +63965,7 @@ static int __pyx_tp_clear_3_sa___pyx_scope_struct_4_input(PyObject *o) {
   p->__pyx_v_sample = ((struct __pyx_obj_3_sa_IntList *)Py_None); Py_INCREF(Py_None);
   Py_XDECREF(tmp);
   tmp = ((PyObject*)p->__pyx_v_scores);
-  p->__pyx_v_scores = ((PyObject*)Py_None); Py_INCREF(Py_None);
+  p->__pyx_v_scores = ((struct __pyx_obj_3_sa_FeatureVector *)Py_None); Py_INCREF(Py_None);
   Py_XDECREF(tmp);
   tmp = ((PyObject*)p->__pyx_v_self);
   p->__pyx_v_self = ((struct __pyx_obj_3_sa_HieroCachingRuleFactory *)Py_None); Py_INCREF(Py_None);
@@ -60349,11 +64006,11 @@ static int __pyx_tp_clear_3_sa___pyx_scope_struct_4_input(PyObject *o) {
   return 0;
 }
 
-static PyMethodDef __pyx_methods_3_sa___pyx_scope_struct_4_input[] = {
+static PyMethodDef __pyx_methods_3_sa___pyx_scope_struct_11_input[] = {
   {0, 0, 0, 0}
 };
 
-static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_4_input = {
+static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_11_input = {
   0, /*nb_add*/
   0, /*nb_subtract*/
   0, /*nb_multiply*/
@@ -60411,7 +64068,7 @@ static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_4_input = {
   #endif
 };
 
-static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_4_input = {
+static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_11_input = {
   0, /*sq_length*/
   0, /*sq_concat*/
   0, /*sq_repeat*/
@@ -60424,13 +64081,13 @@ static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_4_input = {
   0, /*sq_inplace_repeat*/
 };
 
-static PyMappingMethods __pyx_tp_as_mapping___pyx_scope_struct_4_input = {
+static PyMappingMethods __pyx_tp_as_mapping___pyx_scope_struct_11_input = {
   0, /*mp_length*/
   0, /*mp_subscript*/
   0, /*mp_ass_subscript*/
 };
 
-static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_4_input = {
+static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_11_input = {
   #if PY_MAJOR_VERSION < 3
   0, /*bf_getreadbuffer*/
   #endif
@@ -60451,12 +64108,12 @@ static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_4_input = {
   #endif
 };
 
-static PyTypeObject __pyx_type_3_sa___pyx_scope_struct_4_input = {
+static PyTypeObject __pyx_type_3_sa___pyx_scope_struct_11_input = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_sa.__pyx_scope_struct_4_input"), /*tp_name*/
-  sizeof(struct __pyx_obj_3_sa___pyx_scope_struct_4_input), /*tp_basicsize*/
+  __Pyx_NAMESTR("_sa.__pyx_scope_struct_11_input"), /*tp_name*/
+  sizeof(struct __pyx_obj_3_sa___pyx_scope_struct_11_input), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_3_sa___pyx_scope_struct_4_input, /*tp_dealloc*/
+  __pyx_tp_dealloc_3_sa___pyx_scope_struct_11_input, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -60466,24 +64123,24 @@ static PyTypeObject __pyx_type_3_sa___pyx_scope_struct_4_input = {
   0, /*reserved*/
   #endif
   0, /*tp_repr*/
-  &__pyx_tp_as_number___pyx_scope_struct_4_input, /*tp_as_number*/
-  &__pyx_tp_as_sequence___pyx_scope_struct_4_input, /*tp_as_sequence*/
-  &__pyx_tp_as_mapping___pyx_scope_struct_4_input, /*tp_as_mapping*/
+  &__pyx_tp_as_number___pyx_scope_struct_11_input, /*tp_as_number*/
+  &__pyx_tp_as_sequence___pyx_scope_struct_11_input, /*tp_as_sequence*/
+  &__pyx_tp_as_mapping___pyx_scope_struct_11_input, /*tp_as_mapping*/
   0, /*tp_hash*/
   0, /*tp_call*/
   0, /*tp_str*/
   0, /*tp_getattro*/
   0, /*tp_setattro*/
-  &__pyx_tp_as_buffer___pyx_scope_struct_4_input, /*tp_as_buffer*/
+  &__pyx_tp_as_buffer___pyx_scope_struct_11_input, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_3_sa___pyx_scope_struct_4_input, /*tp_traverse*/
-  __pyx_tp_clear_3_sa___pyx_scope_struct_4_input, /*tp_clear*/
+  __pyx_tp_traverse_3_sa___pyx_scope_struct_11_input, /*tp_traverse*/
+  __pyx_tp_clear_3_sa___pyx_scope_struct_11_input, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_3_sa___pyx_scope_struct_4_input, /*tp_methods*/
+  __pyx_methods_3_sa___pyx_scope_struct_11_input, /*tp_methods*/
   0, /*tp_members*/
   0, /*tp_getset*/
   0, /*tp_base*/
@@ -60493,7 +64150,7 @@ static PyTypeObject __pyx_type_3_sa___pyx_scope_struct_4_input = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_3_sa___pyx_scope_struct_4_input, /*tp_new*/
+  __pyx_tp_new_3_sa___pyx_scope_struct_11_input, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -60527,13 +64184,11 @@ static struct PyModuleDef __pyx_moduledef = {
 
 static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_kp_s_1, __pyx_k_1, sizeof(__pyx_k_1), 0, 0, 1, 0},
-  {&__pyx_kp_s_100, __pyx_k_100, sizeof(__pyx_k_100), 0, 0, 1, 0},
-  {&__pyx_kp_s_101, __pyx_k_101, sizeof(__pyx_k_101), 0, 0, 1, 0},
-  {&__pyx_n_s_103, __pyx_k_103, sizeof(__pyx_k_103), 0, 0, 1, 1},
-  {&__pyx_n_s_104, __pyx_k_104, sizeof(__pyx_k_104), 0, 0, 1, 1},
-  {&__pyx_kp_s_106, __pyx_k_106, sizeof(__pyx_k_106), 0, 0, 1, 0},
+  {&__pyx_kp_s_102, __pyx_k_102, sizeof(__pyx_k_102), 0, 0, 1, 0},
+  {&__pyx_kp_s_103, __pyx_k_103, sizeof(__pyx_k_103), 0, 0, 1, 0},
+  {&__pyx_n_s_105, __pyx_k_105, sizeof(__pyx_k_105), 0, 0, 1, 1},
+  {&__pyx_n_s_106, __pyx_k_106, sizeof(__pyx_k_106), 0, 0, 1, 1},
   {&__pyx_kp_s_108, __pyx_k_108, sizeof(__pyx_k_108), 0, 0, 1, 0},
-  {&__pyx_kp_s_109, __pyx_k_109, sizeof(__pyx_k_109), 0, 0, 1, 0},
   {&__pyx_kp_s_110, __pyx_k_110, sizeof(__pyx_k_110), 0, 0, 1, 0},
   {&__pyx_kp_s_111, __pyx_k_111, sizeof(__pyx_k_111), 0, 0, 1, 0},
   {&__pyx_kp_s_112, __pyx_k_112, sizeof(__pyx_k_112), 0, 0, 1, 0},
@@ -60543,12 +64198,12 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_kp_s_116, __pyx_k_116, sizeof(__pyx_k_116), 0, 0, 1, 0},
   {&__pyx_kp_s_117, __pyx_k_117, sizeof(__pyx_k_117), 0, 0, 1, 0},
   {&__pyx_kp_s_118, __pyx_k_118, sizeof(__pyx_k_118), 0, 0, 1, 0},
-  {&__pyx_n_s_119, __pyx_k_119, sizeof(__pyx_k_119), 0, 0, 1, 1},
+  {&__pyx_kp_s_119, __pyx_k_119, sizeof(__pyx_k_119), 0, 0, 1, 0},
   {&__pyx_kp_s_120, __pyx_k_120, sizeof(__pyx_k_120), 0, 0, 1, 0},
-  {&__pyx_kp_s_121, __pyx_k_121, sizeof(__pyx_k_121), 0, 0, 1, 0},
-  {&__pyx_n_s_123, __pyx_k_123, sizeof(__pyx_k_123), 0, 0, 1, 1},
-  {&__pyx_kp_s_124, __pyx_k_124, sizeof(__pyx_k_124), 0, 0, 1, 0},
-  {&__pyx_kp_s_125, __pyx_k_125, sizeof(__pyx_k_125), 0, 0, 1, 0},
+  {&__pyx_n_s_121, __pyx_k_121, sizeof(__pyx_k_121), 0, 0, 1, 1},
+  {&__pyx_kp_s_122, __pyx_k_122, sizeof(__pyx_k_122), 0, 0, 1, 0},
+  {&__pyx_kp_s_123, __pyx_k_123, sizeof(__pyx_k_123), 0, 0, 1, 0},
+  {&__pyx_n_s_125, __pyx_k_125, sizeof(__pyx_k_125), 0, 0, 1, 1},
   {&__pyx_kp_s_126, __pyx_k_126, sizeof(__pyx_k_126), 0, 0, 1, 0},
   {&__pyx_kp_s_127, __pyx_k_127, sizeof(__pyx_k_127), 0, 0, 1, 0},
   {&__pyx_kp_s_128, __pyx_k_128, sizeof(__pyx_k_128), 0, 0, 1, 0},
@@ -60558,11 +64213,13 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_kp_s_131, __pyx_k_131, sizeof(__pyx_k_131), 0, 0, 1, 0},
   {&__pyx_kp_s_132, __pyx_k_132, sizeof(__pyx_k_132), 0, 0, 1, 0},
   {&__pyx_kp_s_133, __pyx_k_133, sizeof(__pyx_k_133), 0, 0, 1, 0},
-  {&__pyx_kp_s_136, __pyx_k_136, sizeof(__pyx_k_136), 0, 0, 1, 0},
-  {&__pyx_kp_s_137, __pyx_k_137, sizeof(__pyx_k_137), 0, 0, 1, 0},
+  {&__pyx_kp_s_134, __pyx_k_134, sizeof(__pyx_k_134), 0, 0, 1, 0},
+  {&__pyx_kp_s_135, __pyx_k_135, sizeof(__pyx_k_135), 0, 0, 1, 0},
+  {&__pyx_kp_s_138, __pyx_k_138, sizeof(__pyx_k_138), 0, 0, 1, 0},
+  {&__pyx_kp_s_139, __pyx_k_139, sizeof(__pyx_k_139), 0, 0, 1, 0},
   {&__pyx_kp_s_14, __pyx_k_14, sizeof(__pyx_k_14), 0, 0, 1, 0},
-  {&__pyx_kp_s_141, __pyx_k_141, sizeof(__pyx_k_141), 0, 0, 1, 0},
-  {&__pyx_kp_s_142, __pyx_k_142, sizeof(__pyx_k_142), 0, 0, 1, 0},
+  {&__pyx_kp_s_143, __pyx_k_143, sizeof(__pyx_k_143), 0, 0, 1, 0},
+  {&__pyx_kp_s_144, __pyx_k_144, sizeof(__pyx_k_144), 0, 0, 1, 0},
   {&__pyx_kp_s_18, __pyx_k_18, sizeof(__pyx_k_18), 0, 0, 1, 0},
   {&__pyx_kp_s_2, __pyx_k_2, sizeof(__pyx_k_2), 0, 0, 1, 0},
   {&__pyx_kp_s_21, __pyx_k_21, sizeof(__pyx_k_21), 0, 0, 1, 0},
@@ -60612,27 +64269,41 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_kp_s_92, __pyx_k_92, sizeof(__pyx_k_92), 0, 0, 1, 0},
   {&__pyx_kp_s_94, __pyx_k_94, sizeof(__pyx_k_94), 0, 0, 1, 0},
   {&__pyx_kp_s_95, __pyx_k_95, sizeof(__pyx_k_95), 0, 0, 1, 0},
+  {&__pyx_kp_s_99, __pyx_k_99, sizeof(__pyx_k_99), 0, 0, 1, 0},
   {&__pyx_kp_s__0, __pyx_k__0, sizeof(__pyx_k__0), 0, 0, 1, 0},
   {&__pyx_kp_s__1, __pyx_k__1, sizeof(__pyx_k__1), 0, 0, 1, 0},
+  {&__pyx_n_s__CountEF, __pyx_k__CountEF, sizeof(__pyx_k__CountEF), 0, 0, 1, 1},
+  {&__pyx_n_s__Counter, __pyx_k__Counter, sizeof(__pyx_k__Counter), 0, 0, 1, 1},
   {&__pyx_n_s__END_OF_FILE, __pyx_k__END_OF_FILE, sizeof(__pyx_k__END_OF_FILE), 0, 0, 1, 1},
   {&__pyx_n_s__END_OF_LINE, __pyx_k__END_OF_LINE, sizeof(__pyx_k__END_OF_LINE), 0, 0, 1, 1},
+  {&__pyx_n_s__EgivenFCoherent, __pyx_k__EgivenFCoherent, sizeof(__pyx_k__EgivenFCoherent), 0, 0, 1, 1},
   {&__pyx_n_s__Exception, __pyx_k__Exception, sizeof(__pyx_k__Exception), 0, 0, 1, 1},
   {&__pyx_n_s__GzipFile, __pyx_k__GzipFile, sizeof(__pyx_k__GzipFile), 0, 0, 1, 1},
+  {&__pyx_n_s__INCREMENT, __pyx_k__INCREMENT, sizeof(__pyx_k__INCREMENT), 0, 0, 1, 1},
+  {&__pyx_n_s__INITIAL_CAPACITY, __pyx_k__INITIAL_CAPACITY, sizeof(__pyx_k__INITIAL_CAPACITY), 0, 0, 1, 1},
   {&__pyx_n_s__IndexError, __pyx_k__IndexError, sizeof(__pyx_k__IndexError), 0, 0, 1, 1},
+  {&__pyx_n_s__IsSingletonF, __pyx_k__IsSingletonF, sizeof(__pyx_k__IsSingletonF), 0, 0, 1, 1},
+  {&__pyx_n_s__IsSingletonFE, __pyx_k__IsSingletonFE, sizeof(__pyx_k__IsSingletonFE), 0, 0, 1, 1},
+  {&__pyx_n_s__MAXSCORE, __pyx_k__MAXSCORE, sizeof(__pyx_k__MAXSCORE), 0, 0, 1, 1},
+  {&__pyx_n_s__MaxLexEgivenF, __pyx_k__MaxLexEgivenF, sizeof(__pyx_k__MaxLexEgivenF), 0, 0, 1, 1},
+  {&__pyx_n_s__MaxLexFgivenE, __pyx_k__MaxLexFgivenE, sizeof(__pyx_k__MaxLexFgivenE), 0, 0, 1, 1},
+  {&__pyx_n_s__NFEATURES, __pyx_k__NFEATURES, sizeof(__pyx_k__NFEATURES), 0, 0, 1, 1},
   {&__pyx_n_s__NULL, __pyx_k__NULL, sizeof(__pyx_k__NULL), 0, 0, 1, 1},
   {&__pyx_n_s__RUSAGE_SELF, __pyx_k__RUSAGE_SELF, sizeof(__pyx_k__RUSAGE_SELF), 0, 0, 1, 1},
+  {&__pyx_n_s__SampleCountF, __pyx_k__SampleCountF, sizeof(__pyx_k__SampleCountF), 0, 0, 1, 1},
   {&__pyx_n_s__StopIteration, __pyx_k__StopIteration, sizeof(__pyx_k__StopIteration), 0, 0, 1, 1},
   {&__pyx_n_s__TypeError, __pyx_k__TypeError, sizeof(__pyx_k__TypeError), 0, 0, 1, 1},
-  {&__pyx_n_s__ValueError, __pyx_k__ValueError, sizeof(__pyx_k__ValueError), 0, 0, 1, 1},
   {&__pyx_n_s____enter__, __pyx_k____enter__, sizeof(__pyx_k____enter__), 0, 0, 1, 1},
   {&__pyx_n_s____exit__, __pyx_k____exit__, sizeof(__pyx_k____exit__), 0, 0, 1, 1},
   {&__pyx_n_s____main__, __pyx_k____main__, sizeof(__pyx_k____main__), 0, 0, 1, 1},
+  {&__pyx_n_s____name__, __pyx_k____name__, sizeof(__pyx_k____name__), 0, 0, 1, 1},
   {&__pyx_n_s____test__, __pyx_k____test__, sizeof(__pyx_k____test__), 0, 0, 1, 1},
   {&__pyx_n_s___columns, __pyx_k___columns, sizeof(__pyx_k___columns), 0, 0, 1, 1},
   {&__pyx_n_s___doquicksort, __pyx_k___doquicksort, sizeof(__pyx_k___doquicksort), 0, 0, 1, 1},
   {&__pyx_n_s___sa, __pyx_k___sa, sizeof(__pyx_k___sa), 0, 0, 1, 1},
   {&__pyx_n_s__advance, __pyx_k__advance, sizeof(__pyx_k__advance), 0, 0, 1, 1},
   {&__pyx_n_s__alignment, __pyx_k__alignment, sizeof(__pyx_k__alignment), 0, 0, 1, 1},
+  {&__pyx_n_s__alignments, __pyx_k__alignments, sizeof(__pyx_k__alignments), 0, 0, 1, 1},
   {&__pyx_n_s__alphabet_size, __pyx_k__alphabet_size, sizeof(__pyx_k__alphabet_size), 0, 0, 1, 1},
   {&__pyx_n_s__arity, __pyx_k__arity, sizeof(__pyx_k__arity), 0, 0, 1, 1},
   {&__pyx_n_s__arr, __pyx_k__arr, sizeof(__pyx_k__arr), 0, 0, 1, 1},
@@ -60644,8 +64315,10 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_n_s__cmp, __pyx_k__cmp, sizeof(__pyx_k__cmp), 0, 0, 1, 1},
   {&__pyx_n_s__col, __pyx_k__col, sizeof(__pyx_k__col), 0, 0, 1, 1},
   {&__pyx_n_s__collect, __pyx_k__collect, sizeof(__pyx_k__collect), 0, 0, 1, 1},
+  {&__pyx_n_s__collections, __pyx_k__collections, sizeof(__pyx_k__collections), 0, 0, 1, 1},
   {&__pyx_n_s__curr_idx, __pyx_k__curr_idx, sizeof(__pyx_k__curr_idx), 0, 0, 1, 1},
   {&__pyx_n_s__debug, __pyx_k__debug, sizeof(__pyx_k__debug), 0, 0, 1, 1},
+  {&__pyx_n_s__defaultdict, __pyx_k__defaultdict, sizeof(__pyx_k__defaultdict), 0, 0, 1, 1},
   {&__pyx_n_s__dist, __pyx_k__dist, sizeof(__pyx_k__dist), 0, 0, 1, 1},
   {&__pyx_n_s__e, __pyx_k__e, sizeof(__pyx_k__e), 0, 0, 1, 1},
   {&__pyx_n_s__earray, __pyx_k__earray, sizeof(__pyx_k__earray), 0, 0, 1, 1},
@@ -60674,6 +64347,7 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_n_s__get_f_id, __pyx_k__get_f_id, sizeof(__pyx_k__get_f_id), 0, 0, 1, 1},
   {&__pyx_n_s__get_id, __pyx_k__get_id, sizeof(__pyx_k__get_id), 0, 0, 1, 1},
   {&__pyx_n_s__get_next_states, __pyx_k__get_next_states, sizeof(__pyx_k__get_next_states), 0, 0, 1, 1},
+  {&__pyx_n_s__get_score, __pyx_k__get_score, sizeof(__pyx_k__get_score), 0, 0, 1, 1},
   {&__pyx_n_s__get_word, __pyx_k__get_word, sizeof(__pyx_k__get_word), 0, 0, 1, 1},
   {&__pyx_n_s__getchunk, __pyx_k__getchunk, sizeof(__pyx_k__getchunk), 0, 0, 1, 1},
   {&__pyx_n_s__getrusage, __pyx_k__getrusage, sizeof(__pyx_k__getrusage), 0, 0, 1, 1},
@@ -60708,7 +64382,7 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_n_s__merge, __pyx_k__merge, sizeof(__pyx_k__merge), 0, 0, 1, 1},
   {&__pyx_n_s__min_dist, __pyx_k__min_dist, sizeof(__pyx_k__min_dist), 0, 0, 1, 1},
   {&__pyx_n_s__min_gap_size, __pyx_k__min_gap_size, sizeof(__pyx_k__min_gap_size), 0, 0, 1, 1},
-  {&__pyx_n_s__models, __pyx_k__models, sizeof(__pyx_k__models), 0, 0, 1, 1},
+  {&__pyx_n_s__name, __pyx_k__name, sizeof(__pyx_k__name), 0, 0, 1, 1},
   {&__pyx_n_s__next_states, __pyx_k__next_states, sizeof(__pyx_k__next_states), 0, 0, 1, 1},
   {&__pyx_n_s__num_subpatterns, __pyx_k__num_subpatterns, sizeof(__pyx_k__num_subpatterns), 0, 0, 1, 1},
   {&__pyx_n_s__offset, __pyx_k__offset, sizeof(__pyx_k__offset), 0, 0, 1, 1},
@@ -60744,9 +64418,10 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_n_s__sample_size, __pyx_k__sample_size, sizeof(__pyx_k__sample_size), 0, 0, 1, 1},
   {&__pyx_n_s__sampler, __pyx_k__sampler, sizeof(__pyx_k__sampler), 0, 0, 1, 1},
   {&__pyx_n_s__sarray, __pyx_k__sarray, sizeof(__pyx_k__sarray), 0, 0, 1, 1},
+  {&__pyx_n_s__scorer, __pyx_k__scorer, sizeof(__pyx_k__scorer), 0, 0, 1, 1},
   {&__pyx_n_s__scores, __pyx_k__scores, sizeof(__pyx_k__scores), 0, 0, 1, 1},
   {&__pyx_n_s__seek, __pyx_k__seek, sizeof(__pyx_k__seek), 0, 0, 1, 1},
-  {&__pyx_n_s__setdefault, __pyx_k__setdefault, sizeof(__pyx_k__setdefault), 0, 0, 1, 1},
+  {&__pyx_n_s__set, __pyx_k__set, sizeof(__pyx_k__set), 0, 0, 1, 1},
   {&__pyx_n_s__shortest, __pyx_k__shortest, sizeof(__pyx_k__shortest), 0, 0, 1, 1},
   {&__pyx_n_s__side, __pyx_k__side, sizeof(__pyx_k__side), 0, 0, 1, 1},
   {&__pyx_n_s__size, __pyx_k__size, sizeof(__pyx_k__size), 0, 0, 1, 1},
@@ -60765,11 +64440,13 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_n_s__tight_phrases, __pyx_k__tight_phrases, sizeof(__pyx_k__tight_phrases), 0, 0, 1, 1},
   {&__pyx_n_s__toMap, __pyx_k__toMap, sizeof(__pyx_k__toMap), 0, 0, 1, 1},
   {&__pyx_n_s__train_min_gap_size, __pyx_k__train_min_gap_size, sizeof(__pyx_k__train_min_gap_size), 0, 0, 1, 1},
+  {&__pyx_n_s__ttable, __pyx_k__ttable, sizeof(__pyx_k__ttable), 0, 0, 1, 1},
   {&__pyx_n_s__unlink, __pyx_k__unlink, sizeof(__pyx_k__unlink), 0, 0, 1, 1},
   {&__pyx_n_s__use_baeza_yates, __pyx_k__use_baeza_yates, sizeof(__pyx_k__use_baeza_yates), 0, 0, 1, 1},
   {&__pyx_n_s__use_collocations, __pyx_k__use_collocations, sizeof(__pyx_k__use_collocations), 0, 0, 1, 1},
   {&__pyx_n_s__use_index, __pyx_k__use_index, sizeof(__pyx_k__use_index), 0, 0, 1, 1},
   {&__pyx_n_s__use_sent_id, __pyx_k__use_sent_id, sizeof(__pyx_k__use_sent_id), 0, 0, 1, 1},
+  {&__pyx_n_s__value, __pyx_k__value, sizeof(__pyx_k__value), 0, 0, 1, 1},
   {&__pyx_n_s__w, __pyx_k__w, sizeof(__pyx_k__w), 0, 0, 1, 1},
   {&__pyx_n_s__warn, __pyx_k__warn, sizeof(__pyx_k__warn), 0, 0, 1, 1},
   {&__pyx_n_s__word, __pyx_k__word, sizeof(__pyx_k__word), 0, 0, 1, 1},
@@ -60782,17 +64459,16 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
 };
 static int __Pyx_InitCachedBuiltins(void) {
   __pyx_builtin_open = __Pyx_GetName(__pyx_b, __pyx_n_s__open); if (!__pyx_builtin_open) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 13; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_builtin_IndexError = __Pyx_GetName(__pyx_b, __pyx_n_s__IndexError); if (!__pyx_builtin_IndexError) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 32; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_builtin_range = __Pyx_GetName(__pyx_b, __pyx_n_s__range); if (!__pyx_builtin_range) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 27; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_builtin_TypeError = __Pyx_GetName(__pyx_b, __pyx_n_s__TypeError); if (!__pyx_builtin_TypeError) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 108; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_builtin_IndexError = __Pyx_GetName(__pyx_b, __pyx_n_s__IndexError); if (!__pyx_builtin_IndexError) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 28; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_builtin_range = __Pyx_GetName(__pyx_b, __pyx_n_s__range); if (!__pyx_builtin_range) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 23; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_builtin_TypeError = __Pyx_GetName(__pyx_b, __pyx_n_s__TypeError); if (!__pyx_builtin_TypeError) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 109; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_builtin_enumerate = __Pyx_GetName(__pyx_b, __pyx_n_s__enumerate); if (!__pyx_builtin_enumerate) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 78; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_builtin_map = __Pyx_GetName(__pyx_b, __pyx_n_s__map); if (!__pyx_builtin_map) {__pyx_filename = __pyx_f[4]; __pyx_lineno = 59; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_builtin_Exception = __Pyx_GetName(__pyx_b, __pyx_n_s__Exception); if (!__pyx_builtin_Exception) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 124; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_builtin_zip = __Pyx_GetName(__pyx_b, __pyx_n_s__zip); if (!__pyx_builtin_zip) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 368; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_builtin_StopIteration = __Pyx_GetName(__pyx_b, __pyx_n_s__StopIteration); if (!__pyx_builtin_StopIteration) {__pyx_filename = __pyx_f[6]; __pyx_lineno = 108; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_builtin_cmp = __Pyx_GetName(__pyx_b, __pyx_n_s__cmp); if (!__pyx_builtin_cmp) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 192; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_builtin_ValueError = __Pyx_GetName(__pyx_b, __pyx_n_s__ValueError); if (!__pyx_builtin_ValueError) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 196; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_builtin_sorted = __Pyx_GetName(__pyx_b, __pyx_n_s__sorted); if (!__pyx_builtin_sorted) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 917; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_builtin_cmp = __Pyx_GetName(__pyx_b, __pyx_n_s__cmp); if (!__pyx_builtin_cmp) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 173; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_builtin_sorted = __Pyx_GetName(__pyx_b, __pyx_n_s__sorted); if (!__pyx_builtin_sorted) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 921; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   return 0;
   __pyx_L1_error:;
   return -1;
@@ -61359,7 +65035,7 @@ static int __Pyx_InitCachedConstants(void) {
  *         cdef float start_time = monitor_cpu()
  * 
  */
-  __pyx_k_tuple_73 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_73)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 297; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_k_tuple_73 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_73)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 297; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_k_tuple_73);
   __Pyx_INCREF(((PyObject *)__pyx_kp_s_72));
   PyTuple_SET_ITEM(__pyx_k_tuple_73, 0, ((PyObject *)__pyx_kp_s_72));
@@ -61373,7 +65049,7 @@ static int __Pyx_InitCachedConstants(void) {
  *         N = len(data)
  *         for i from 0 <= i < N:
  */
-  __pyx_k_tuple_75 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_75)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 314; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_k_tuple_75 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_75)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 314; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_k_tuple_75);
   __Pyx_INCREF(((PyObject *)__pyx_kp_s_74));
   PyTuple_SET_ITEM(__pyx_k_tuple_75, 0, ((PyObject *)__pyx_kp_s_74));
@@ -61387,7 +65063,7 @@ static int __Pyx_InitCachedConstants(void) {
  *         N = len(queue)
  *         ptr1 = 0
  */
-  __pyx_k_tuple_77 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_77)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 329; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_k_tuple_77 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_77)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 329; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_k_tuple_77);
   __Pyx_INCREF(((PyObject *)__pyx_kp_s_76));
   PyTuple_SET_ITEM(__pyx_k_tuple_77, 0, ((PyObject *)__pyx_kp_s_76));
@@ -61401,7 +65077,7 @@ static int __Pyx_InitCachedConstants(void) {
  *                     J2_set.add(combined_pattern)
  * 
  */
-  __pyx_k_tuple_79 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_79)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 393; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_k_tuple_79 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_79)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 393; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_k_tuple_79);
   __Pyx_INCREF(__pyx_int_neg_1);
   PyTuple_SET_ITEM(__pyx_k_tuple_79, 0, __pyx_int_neg_1);
@@ -61415,7 +65091,7 @@ static int __Pyx_InitCachedConstants(void) {
  *                     IJ_set.add(combined_pattern)
  * 
  */
-  __pyx_k_tuple_80 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_80)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 400; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_k_tuple_80 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_80)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 400; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_k_tuple_80);
   __Pyx_INCREF(__pyx_int_neg_1);
   PyTuple_SET_ITEM(__pyx_k_tuple_80, 0, __pyx_int_neg_1);
@@ -61429,7 +65105,7 @@ static int __Pyx_InitCachedConstants(void) {
  *                     IJ_set.add(combined_pattern)
  *                     combined_pattern = pattern2 + (-1,) + pattern1
  */
-  __pyx_k_tuple_81 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_81)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 407; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_k_tuple_81 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_81)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 407; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_k_tuple_81);
   __Pyx_INCREF(__pyx_int_neg_1);
   PyTuple_SET_ITEM(__pyx_k_tuple_81, 0, __pyx_int_neg_1);
@@ -61443,7 +65119,7 @@ static int __Pyx_InitCachedConstants(void) {
  *                     IJ_set.add(combined_pattern)
  * 
  */
-  __pyx_k_tuple_82 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_82)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 409; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_k_tuple_82 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_82)) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 409; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_k_tuple_82);
   __Pyx_INCREF(__pyx_int_neg_1);
   PyTuple_SET_ITEM(__pyx_k_tuple_82, 0, __pyx_int_neg_1);
@@ -61457,7 +65133,7 @@ static int __Pyx_InitCachedConstants(void) {
  *         for i from 0 <= i < N:
  *             j = isa.arr[i]
  */
-  __pyx_k_tuple_93 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_93)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 103; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_k_tuple_93 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_93)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 103; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_k_tuple_93);
   __Pyx_INCREF(((PyObject *)__pyx_kp_s_92));
   PyTuple_SET_ITEM(__pyx_k_tuple_93, 0, ((PyObject *)__pyx_kp_s_92));
@@ -61471,7 +65147,7 @@ static int __Pyx_InitCachedConstants(void) {
  *             for w_i in self.ha:
  *                 f.write("%d " % w_i)
  */
-  __pyx_k_tuple_96 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_96)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 202; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_k_tuple_96 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_96)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 202; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_k_tuple_96);
   __Pyx_INCREF(((PyObject *)__pyx_kp_s_14));
   PyTuple_SET_ITEM(__pyx_k_tuple_96, 0, ((PyObject *)__pyx_kp_s_14));
@@ -61485,7 +65161,7 @@ static int __Pyx_InitCachedConstants(void) {
  * 
  *     cdef int __search_high(self, int word_id, int offset, int low, int high):
  */
-  __pyx_k_tuple_97 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_97)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 205; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_k_tuple_97 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_97)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 205; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_k_tuple_97);
   __Pyx_INCREF(((PyObject *)__pyx_kp_s_14));
   PyTuple_SET_ITEM(__pyx_k_tuple_97, 0, ((PyObject *)__pyx_kp_s_14));
@@ -61499,7 +65175,7 @@ static int __Pyx_InitCachedConstants(void) {
  *             self.darray.write_enhanced_handle(f)
  *             for a_i in self.sa:
  */
-  __pyx_k_tuple_98 = PyTuple_New(3); if (unlikely(!__pyx_k_tuple_98)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 198; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_k_tuple_98 = PyTuple_New(3); if (unlikely(!__pyx_k_tuple_98)) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 198; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_k_tuple_98);
   __Pyx_INCREF(Py_None);
   PyTuple_SET_ITEM(__pyx_k_tuple_98, 0, Py_None);
@@ -61512,47 +65188,79 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GIVEREF(Py_None);
   __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_98));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":92
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":60
+ *         self.fid = <int*> malloc(NFEATURES*sizeof(int))
+ *         cdef unsigned i
+ *         for i, fnames in enumerate(('EgivenFCoherent', 'SampleCountF', 'CountEF',             # <<<<<<<<<<<<<<
+ *                 'MaxLexFgivenE', 'MaxLexEgivenF', 'IsSingletonF', 'IsSingletonFE')):
+ *             self.fid[i] = FD.index(fnames)
+ */
+  __pyx_k_tuple_100 = PyTuple_New(7); if (unlikely(!__pyx_k_tuple_100)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 60; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_k_tuple_100);
+  __Pyx_INCREF(((PyObject *)__pyx_n_s__EgivenFCoherent));
+  PyTuple_SET_ITEM(__pyx_k_tuple_100, 0, ((PyObject *)__pyx_n_s__EgivenFCoherent));
+  __Pyx_GIVEREF(((PyObject *)__pyx_n_s__EgivenFCoherent));
+  __Pyx_INCREF(((PyObject *)__pyx_n_s__SampleCountF));
+  PyTuple_SET_ITEM(__pyx_k_tuple_100, 1, ((PyObject *)__pyx_n_s__SampleCountF));
+  __Pyx_GIVEREF(((PyObject *)__pyx_n_s__SampleCountF));
+  __Pyx_INCREF(((PyObject *)__pyx_n_s__CountEF));
+  PyTuple_SET_ITEM(__pyx_k_tuple_100, 2, ((PyObject *)__pyx_n_s__CountEF));
+  __Pyx_GIVEREF(((PyObject *)__pyx_n_s__CountEF));
+  __Pyx_INCREF(((PyObject *)__pyx_n_s__MaxLexFgivenE));
+  PyTuple_SET_ITEM(__pyx_k_tuple_100, 3, ((PyObject *)__pyx_n_s__MaxLexFgivenE));
+  __Pyx_GIVEREF(((PyObject *)__pyx_n_s__MaxLexFgivenE));
+  __Pyx_INCREF(((PyObject *)__pyx_n_s__MaxLexEgivenF));
+  PyTuple_SET_ITEM(__pyx_k_tuple_100, 4, ((PyObject *)__pyx_n_s__MaxLexEgivenF));
+  __Pyx_GIVEREF(((PyObject *)__pyx_n_s__MaxLexEgivenF));
+  __Pyx_INCREF(((PyObject *)__pyx_n_s__IsSingletonF));
+  PyTuple_SET_ITEM(__pyx_k_tuple_100, 5, ((PyObject *)__pyx_n_s__IsSingletonF));
+  __Pyx_GIVEREF(((PyObject *)__pyx_n_s__IsSingletonF));
+  __Pyx_INCREF(((PyObject *)__pyx_n_s__IsSingletonFE));
+  PyTuple_SET_ITEM(__pyx_k_tuple_100, 6, ((PyObject *)__pyx_n_s__IsSingletonFE));
+  __Pyx_GIVEREF(((PyObject *)__pyx_n_s__IsSingletonFE));
+  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_100));
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":93
  *             logger.info("Sampling strategy: uniform, max sample size = %d", sample_size)
  *         else:
  *             logger.info("Sampling strategy: no sampling")             # <<<<<<<<<<<<<<
  * 
  *     def sample(self, PhraseLocation phrase_location):
  */
-  __pyx_k_tuple_102 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_102)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 92; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_k_tuple_102);
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_101));
-  PyTuple_SET_ITEM(__pyx_k_tuple_102, 0, ((PyObject *)__pyx_kp_s_101));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_101));
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_102));
+  __pyx_k_tuple_104 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_104)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 93; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_k_tuple_104);
+  __Pyx_INCREF(((PyObject *)__pyx_kp_s_103));
+  PyTuple_SET_ITEM(__pyx_k_tuple_104, 0, ((PyObject *)__pyx_kp_s_103));
+  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_103));
+  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_104));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":300
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":302
  *         self.rules.root = ExtendedTrieNode(phrase_location=PhraseLocation())
  *         if alignment is None:
  *             raise Exception("Must specify an alignment object")             # <<<<<<<<<<<<<<
  *         self.alignment = alignment
  * 
  */
-  __pyx_k_tuple_107 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_107)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 300; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_k_tuple_107);
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_106));
-  PyTuple_SET_ITEM(__pyx_k_tuple_107, 0, ((PyObject *)__pyx_kp_s_106));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_106));
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_107));
+  __pyx_k_tuple_109 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_109)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 302; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_k_tuple_109);
+  __Pyx_INCREF(((PyObject *)__pyx_kp_s_108));
+  PyTuple_SET_ITEM(__pyx_k_tuple_109, 0, ((PyObject *)__pyx_kp_s_108));
+  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_108));
+  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_109));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1004
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":1008
  *                         else:
  *                             #ERROR: We never get here
  *                             raise Exception("Keyword trie error")             # <<<<<<<<<<<<<<
  *                 # checking whether lookup_required
  *                 if lookup_required:
  */
-  __pyx_k_tuple_122 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_122)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1004; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_k_tuple_122);
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_121));
-  PyTuple_SET_ITEM(__pyx_k_tuple_122, 0, ((PyObject *)__pyx_kp_s_121));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_121));
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_122));
+  __pyx_k_tuple_124 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_124)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1008; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_k_tuple_124);
+  __Pyx_INCREF(((PyObject *)__pyx_kp_s_123));
+  PyTuple_SET_ITEM(__pyx_k_tuple_124, 0, ((PyObject *)__pyx_kp_s_123));
+  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_123));
+  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_124));
 
   /* "_sa.pyx":9
  *             resource.getrusage(resource.RUSAGE_SELF).ru_stime)
@@ -61561,16 +65269,16 @@ static int __Pyx_InitCachedConstants(void) {
  *     if filename.endswith('.gz'):
  *         return gzip.GzipFile(filename)
  */
-  __pyx_k_tuple_134 = PyTuple_New(2); if (unlikely(!__pyx_k_tuple_134)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 9; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_k_tuple_134);
+  __pyx_k_tuple_136 = PyTuple_New(2); if (unlikely(!__pyx_k_tuple_136)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 9; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_k_tuple_136);
   __Pyx_INCREF(((PyObject *)__pyx_n_s__filename));
-  PyTuple_SET_ITEM(__pyx_k_tuple_134, 0, ((PyObject *)__pyx_n_s__filename));
+  PyTuple_SET_ITEM(__pyx_k_tuple_136, 0, ((PyObject *)__pyx_n_s__filename));
   __Pyx_GIVEREF(((PyObject *)__pyx_n_s__filename));
   __Pyx_INCREF(((PyObject *)__pyx_n_s__filename));
-  PyTuple_SET_ITEM(__pyx_k_tuple_134, 1, ((PyObject *)__pyx_n_s__filename));
+  PyTuple_SET_ITEM(__pyx_k_tuple_136, 1, ((PyObject *)__pyx_n_s__filename));
   __Pyx_GIVEREF(((PyObject *)__pyx_n_s__filename));
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_134));
-  __pyx_k_codeobj_135 = (PyObject*)__Pyx_PyCode_New(1, 0, 2, 0, 0, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_k_tuple_134, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_136, __pyx_n_s__gzip_or_text, 9, __pyx_empty_bytes); if (unlikely(!__pyx_k_codeobj_135)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 9; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_136));
+  __pyx_k_codeobj_137 = (PyObject*)__Pyx_PyCode_New(1, 0, 2, 0, 0, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_k_tuple_136, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_138, __pyx_n_s__gzip_or_text, 9, __pyx_empty_bytes); if (unlikely(!__pyx_k_codeobj_137)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 9; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
   /* "_sa.pyx":15
  *         return open(filename)
@@ -61579,12 +65287,12 @@ static int __Pyx_InitCachedConstants(void) {
  * 
  * include "float_list.pxi"
  */
-  __pyx_k_tuple_138 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_138)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 15; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_k_tuple_138);
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_137));
-  PyTuple_SET_ITEM(__pyx_k_tuple_138, 0, ((PyObject *)__pyx_kp_s_137));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_137));
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_138));
+  __pyx_k_tuple_140 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_140)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 15; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_k_tuple_140);
+  __Pyx_INCREF(((PyObject *)__pyx_kp_s_139));
+  PyTuple_SET_ITEM(__pyx_k_tuple_140, 0, ((PyObject *)__pyx_kp_s_139));
+  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_139));
+  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_140));
 
   /* "/Users/vchahun/Sandbox/cdec/python/src/sa/sym.pxi":104
  *     return ALPHABET.setindex(sym, id)
@@ -61592,16 +65300,16 @@ static int __Pyx_InitCachedConstants(void) {
  * def sym_fromstring(char* string, bint terminal):             # <<<<<<<<<<<<<<
  *     return ALPHABET.fromstring(string, terminal)
  */
-  __pyx_k_tuple_139 = PyTuple_New(2); if (unlikely(!__pyx_k_tuple_139)) {__pyx_filename = __pyx_f[10]; __pyx_lineno = 104; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_k_tuple_139);
+  __pyx_k_tuple_141 = PyTuple_New(2); if (unlikely(!__pyx_k_tuple_141)) {__pyx_filename = __pyx_f[10]; __pyx_lineno = 104; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_k_tuple_141);
   __Pyx_INCREF(((PyObject *)__pyx_n_s__string));
-  PyTuple_SET_ITEM(__pyx_k_tuple_139, 0, ((PyObject *)__pyx_n_s__string));
+  PyTuple_SET_ITEM(__pyx_k_tuple_141, 0, ((PyObject *)__pyx_n_s__string));
   __Pyx_GIVEREF(((PyObject *)__pyx_n_s__string));
   __Pyx_INCREF(((PyObject *)__pyx_n_s__terminal));
-  PyTuple_SET_ITEM(__pyx_k_tuple_139, 1, ((PyObject *)__pyx_n_s__terminal));
+  PyTuple_SET_ITEM(__pyx_k_tuple_141, 1, ((PyObject *)__pyx_n_s__terminal));
   __Pyx_GIVEREF(((PyObject *)__pyx_n_s__terminal));
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_139));
-  __pyx_k_codeobj_140 = (PyObject*)__Pyx_PyCode_New(2, 0, 2, 0, 0, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_k_tuple_139, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_141, __pyx_n_s__sym_fromstring, 104, __pyx_empty_bytes); if (unlikely(!__pyx_k_codeobj_140)) {__pyx_filename = __pyx_f[10]; __pyx_lineno = 104; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_141));
+  __pyx_k_codeobj_142 = (PyObject*)__Pyx_PyCode_New(2, 0, 2, 0, 0, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_k_tuple_141, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_143, __pyx_n_s__sym_fromstring, 104, __pyx_empty_bytes); if (unlikely(!__pyx_k_codeobj_142)) {__pyx_filename = __pyx_f[10]; __pyx_lineno = 104; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_RefNannyFinishContext();
   return 0;
   __pyx_L1_error:;
@@ -61614,10 +65322,15 @@ static int __Pyx_InitGlobals(void) {
   __pyx_int_0 = PyInt_FromLong(0); if (unlikely(!__pyx_int_0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
   __pyx_int_1 = PyInt_FromLong(1); if (unlikely(!__pyx_int_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
   __pyx_int_2 = PyInt_FromLong(2); if (unlikely(!__pyx_int_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  __pyx_int_3 = PyInt_FromLong(3); if (unlikely(!__pyx_int_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  __pyx_int_4 = PyInt_FromLong(4); if (unlikely(!__pyx_int_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
   __pyx_int_5 = PyInt_FromLong(5); if (unlikely(!__pyx_int_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  __pyx_int_6 = PyInt_FromLong(6); if (unlikely(!__pyx_int_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  __pyx_int_7 = PyInt_FromLong(7); if (unlikely(!__pyx_int_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
   __pyx_int_neg_1 = PyInt_FromLong(-1); if (unlikely(!__pyx_int_neg_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
   __pyx_int_10 = PyInt_FromLong(10); if (unlikely(!__pyx_int_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
   __pyx_int_20 = PyInt_FromLong(20); if (unlikely(!__pyx_int_20)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  __pyx_int_neg_99 = PyInt_FromLong(-99); if (unlikely(!__pyx_int_neg_99)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
   __pyx_int_1000 = PyInt_FromLong(1000); if (unlikely(!__pyx_int_1000)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
   __pyx_int_65536 = PyInt_FromLong(65536); if (unlikely(!__pyx_int_65536)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
   return 0;
@@ -61694,6 +65407,7 @@ PyMODINIT_FUNC PyInit__sa(void)
   if (unlikely(__Pyx_InitCachedConstants() < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   /*--- Global init code ---*/
   __pyx_v_3_sa_ALPHABET = ((struct __pyx_obj_3_sa_Alphabet *)Py_None); Py_INCREF(Py_None);
+  __pyx_v_3_sa_FD = ((struct __pyx_obj_3_sa_StringMap *)Py_None); Py_INCREF(Py_None);
   /*--- Variable export code ---*/
   /*--- Function export code ---*/
   if (__Pyx_ExportFunction("sym_tostring", (void (*)(void))__pyx_f_3_sa_sym_tostring, "char *(int)") < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
@@ -61701,16 +65415,6 @@ PyMODINIT_FUNC PyInit__sa(void)
   if (__Pyx_ExportFunction("sym_isvar", (void (*)(void))__pyx_f_3_sa_sym_isvar, "int (int)") < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   if (__Pyx_ExportFunction("sym_getindex", (void (*)(void))__pyx_f_3_sa_sym_getindex, "int (int)") < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   /*--- Type init code ---*/
-  __pyx_vtabptr_3_sa_Phrase = &__pyx_vtable_3_sa_Phrase;
-  __pyx_vtable_3_sa_Phrase.chunkpos = (int (*)(struct __pyx_obj_3_sa_Phrase *, int))__pyx_f_3_sa_6Phrase_chunkpos;
-  __pyx_vtable_3_sa_Phrase.chunklen = (int (*)(struct __pyx_obj_3_sa_Phrase *, int))__pyx_f_3_sa_6Phrase_chunklen;
-  if (PyType_Ready(&__pyx_type_3_sa_Phrase) < 0) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 4; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (__Pyx_SetVtable(__pyx_type_3_sa_Phrase.tp_dict, __pyx_vtabptr_3_sa_Phrase) < 0) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 4; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (__Pyx_SetAttrString(__pyx_m, "Phrase", (PyObject *)&__pyx_type_3_sa_Phrase) < 0) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 4; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_3_sa_Phrase = &__pyx_type_3_sa_Phrase;
-  if (PyType_Ready(&__pyx_type_3_sa_Rule) < 0) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 159; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (__Pyx_SetAttrString(__pyx_m, "Rule", (PyObject *)&__pyx_type_3_sa_Rule) < 0) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 159; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_3_sa_Rule = &__pyx_type_3_sa_Rule;
   __pyx_vtabptr_3_sa_FloatList = &__pyx_vtable_3_sa_FloatList;
   __pyx_vtable_3_sa_FloatList.set = (void (*)(struct __pyx_obj_3_sa_FloatList *, int, float))__pyx_f_3_sa_9FloatList_set;
   __pyx_vtable_3_sa_FloatList.write_handle = (void (*)(struct __pyx_obj_3_sa_FloatList *, FILE *))__pyx_f_3_sa_9FloatList_write_handle;
@@ -61731,6 +65435,19 @@ PyMODINIT_FUNC PyInit__sa(void)
   if (__Pyx_SetVtable(__pyx_type_3_sa_IntList.tp_dict, __pyx_vtabptr_3_sa_IntList) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 9; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   if (__Pyx_SetAttrString(__pyx_m, "IntList", (PyObject *)&__pyx_type_3_sa_IntList) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 9; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_ptype_3_sa_IntList = &__pyx_type_3_sa_IntList;
+  if (PyType_Ready(&__pyx_type_3_sa_FeatureVector) < 0) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 6; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetAttrString(__pyx_m, "FeatureVector", (PyObject *)&__pyx_type_3_sa_FeatureVector) < 0) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 6; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_3_sa_FeatureVector = &__pyx_type_3_sa_FeatureVector;
+  __pyx_vtabptr_3_sa_Phrase = &__pyx_vtable_3_sa_Phrase;
+  __pyx_vtable_3_sa_Phrase.chunkpos = (int (*)(struct __pyx_obj_3_sa_Phrase *, int))__pyx_f_3_sa_6Phrase_chunkpos;
+  __pyx_vtable_3_sa_Phrase.chunklen = (int (*)(struct __pyx_obj_3_sa_Phrase *, int))__pyx_f_3_sa_6Phrase_chunklen;
+  if (PyType_Ready(&__pyx_type_3_sa_Phrase) < 0) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 4; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetVtable(__pyx_type_3_sa_Phrase.tp_dict, __pyx_vtabptr_3_sa_Phrase) < 0) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 4; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetAttrString(__pyx_m, "Phrase", (PyObject *)&__pyx_type_3_sa_Phrase) < 0) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 4; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_3_sa_Phrase = &__pyx_type_3_sa_Phrase;
+  if (PyType_Ready(&__pyx_type_3_sa_Rule) < 0) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 159; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetAttrString(__pyx_m, "Rule", (PyObject *)&__pyx_type_3_sa_Rule) < 0) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 159; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_3_sa_Rule = &__pyx_type_3_sa_Rule;
   __pyx_vtabptr_3_sa_StringMap = &__pyx_vtable_3_sa_StringMap;
   __pyx_vtable_3_sa_StringMap.word = (char *(*)(struct __pyx_obj_3_sa_StringMap *, int))__pyx_f_3_sa_9StringMap_word;
   __pyx_vtable_3_sa_StringMap.index = (int (*)(struct __pyx_obj_3_sa_StringMap *, char *))__pyx_f_3_sa_9StringMap_index;
@@ -61802,44 +65519,58 @@ PyMODINIT_FUNC PyInit__sa(void)
   __pyx_vtabptr_3_sa_TrieMap = &__pyx_vtable_3_sa_TrieMap;
   __pyx_vtable_3_sa_TrieMap._insert = (struct __pyx_t_3_sa__Trie_Node *(*)(struct __pyx_obj_3_sa_TrieMap *, int *, int))__pyx_f_3_sa_7TrieMap__insert;
   __pyx_vtable_3_sa_TrieMap._contains = (struct __pyx_t_3_sa__Trie_Node *(*)(struct __pyx_obj_3_sa_TrieMap *, int *, int))__pyx_f_3_sa_7TrieMap__contains;
-  if (PyType_Ready(&__pyx_type_3_sa_TrieMap) < 0) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 109; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (__Pyx_SetVtable(__pyx_type_3_sa_TrieMap.tp_dict, __pyx_vtabptr_3_sa_TrieMap) < 0) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 109; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (__Pyx_SetAttrString(__pyx_m, "TrieMap", (PyObject *)&__pyx_type_3_sa_TrieMap) < 0) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 109; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyType_Ready(&__pyx_type_3_sa_TrieMap) < 0) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 109; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetVtable(__pyx_type_3_sa_TrieMap.tp_dict, __pyx_vtabptr_3_sa_TrieMap) < 0) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 109; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetAttrString(__pyx_m, "TrieMap", (PyObject *)&__pyx_type_3_sa_TrieMap) < 0) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 109; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_ptype_3_sa_TrieMap = &__pyx_type_3_sa_TrieMap;
   __pyx_vtabptr_3_sa_Precomputation = &__pyx_vtable_3_sa_Precomputation;
   __pyx_vtable_3_sa_Precomputation.read_map = (PyObject *(*)(struct __pyx_obj_3_sa_Precomputation *, FILE *))__pyx_f_3_sa_14Precomputation_read_map;
   __pyx_vtable_3_sa_Precomputation.write_map = (PyObject *(*)(struct __pyx_obj_3_sa_Precomputation *, PyObject *, FILE *))__pyx_f_3_sa_14Precomputation_write_map;
-  if (PyType_Ready(&__pyx_type_3_sa_Precomputation) < 0) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 188; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (__Pyx_SetVtable(__pyx_type_3_sa_Precomputation.tp_dict, __pyx_vtabptr_3_sa_Precomputation) < 0) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 188; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (__Pyx_SetAttrString(__pyx_m, "Precomputation", (PyObject *)&__pyx_type_3_sa_Precomputation) < 0) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 188; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyType_Ready(&__pyx_type_3_sa_Precomputation) < 0) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 188; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetVtable(__pyx_type_3_sa_Precomputation.tp_dict, __pyx_vtabptr_3_sa_Precomputation) < 0) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 188; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetAttrString(__pyx_m, "Precomputation", (PyObject *)&__pyx_type_3_sa_Precomputation) < 0) {__pyx_filename = __pyx_f[11]; __pyx_lineno = 188; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_ptype_3_sa_Precomputation = &__pyx_type_3_sa_Precomputation;
   __pyx_vtabptr_3_sa_SuffixArray = &__pyx_vtable_3_sa_SuffixArray;
   __pyx_vtable_3_sa_SuffixArray.__pyx___search_high = (int (*)(struct __pyx_obj_3_sa_SuffixArray *, int, int, int, int))__pyx_f_3_sa_11SuffixArray___search_high;
   __pyx_vtable_3_sa_SuffixArray.__pyx___search_low = (int (*)(struct __pyx_obj_3_sa_SuffixArray *, int, int, int, int))__pyx_f_3_sa_11SuffixArray___search_low;
   __pyx_vtable_3_sa_SuffixArray.__pyx___get_range = (PyObject *(*)(struct __pyx_obj_3_sa_SuffixArray *, int, int, int, int, int))__pyx_f_3_sa_11SuffixArray___get_range;
   __pyx_vtable_3_sa_SuffixArray.__pyx___lookup_helper = (PyObject *(*)(struct __pyx_obj_3_sa_SuffixArray *, int, int, int, int))__pyx_f_3_sa_11SuffixArray___lookup_helper;
-  if (PyType_Ready(&__pyx_type_3_sa_SuffixArray) < 0) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 6; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (__Pyx_SetVtable(__pyx_type_3_sa_SuffixArray.tp_dict, __pyx_vtabptr_3_sa_SuffixArray) < 0) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 6; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (__Pyx_SetAttrString(__pyx_m, "SuffixArray", (PyObject *)&__pyx_type_3_sa_SuffixArray) < 0) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 6; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyType_Ready(&__pyx_type_3_sa_SuffixArray) < 0) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 6; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetVtable(__pyx_type_3_sa_SuffixArray.tp_dict, __pyx_vtabptr_3_sa_SuffixArray) < 0) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 6; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetAttrString(__pyx_m, "SuffixArray", (PyObject *)&__pyx_type_3_sa_SuffixArray) < 0) {__pyx_filename = __pyx_f[12]; __pyx_lineno = 6; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_ptype_3_sa_SuffixArray = &__pyx_type_3_sa_SuffixArray;
-  if (PyType_Ready(&__pyx_type_3_sa_TrieNode) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 18; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (__Pyx_SetAttrString(__pyx_m, "TrieNode", (PyObject *)&__pyx_type_3_sa_TrieNode) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 18; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_vtabptr_3_sa_Scorer = &__pyx_vtable_3_sa_Scorer;
+  __pyx_vtable_3_sa_Scorer.score = (struct __pyx_obj_3_sa_FeatureVector *(*)(struct __pyx_obj_3_sa_Scorer *, struct __pyx_obj_3_sa_Phrase *, struct __pyx_obj_3_sa_Phrase *, unsigned int, unsigned int, unsigned int))__pyx_f_3_sa_6Scorer_score;
+  if (PyType_Ready(&__pyx_type_3_sa_Scorer) < 0) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 23; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetVtable(__pyx_type_3_sa_Scorer.tp_dict, __pyx_vtabptr_3_sa_Scorer) < 0) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 23; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetAttrString(__pyx_m, "Scorer", (PyObject *)&__pyx_type_3_sa_Scorer) < 0) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 23; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_3_sa_Scorer = &__pyx_type_3_sa_Scorer;
+  __pyx_vtabptr_3_sa_DefaultScorer = &__pyx_vtable_3_sa_DefaultScorer;
+  __pyx_vtable_3_sa_DefaultScorer.__pyx_base = *__pyx_vtabptr_3_sa_Scorer;
+  __pyx_vtable_3_sa_DefaultScorer.__pyx_base.score = (struct __pyx_obj_3_sa_FeatureVector *(*)(struct __pyx_obj_3_sa_Scorer *, struct __pyx_obj_3_sa_Phrase *, struct __pyx_obj_3_sa_Phrase *, unsigned int, unsigned int, unsigned int))__pyx_f_3_sa_13DefaultScorer_score;
+  __pyx_type_3_sa_DefaultScorer.tp_base = __pyx_ptype_3_sa_Scorer;
+  if (PyType_Ready(&__pyx_type_3_sa_DefaultScorer) < 0) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 49; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetVtable(__pyx_type_3_sa_DefaultScorer.tp_dict, __pyx_vtabptr_3_sa_DefaultScorer) < 0) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 49; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetAttrString(__pyx_m, "DefaultScorer", (PyObject *)&__pyx_type_3_sa_DefaultScorer) < 0) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 49; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_3_sa_DefaultScorer = &__pyx_type_3_sa_DefaultScorer;
+  if (PyType_Ready(&__pyx_type_3_sa_TrieNode) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 20; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetAttrString(__pyx_m, "TrieNode", (PyObject *)&__pyx_type_3_sa_TrieNode) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 20; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_ptype_3_sa_TrieNode = &__pyx_type_3_sa_TrieNode;
   __pyx_type_3_sa_ExtendedTrieNode.tp_base = __pyx_ptype_3_sa_TrieNode;
-  if (PyType_Ready(&__pyx_type_3_sa_ExtendedTrieNode) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 24; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (__Pyx_SetAttrString(__pyx_m, "ExtendedTrieNode", (PyObject *)&__pyx_type_3_sa_ExtendedTrieNode) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 24; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyType_Ready(&__pyx_type_3_sa_ExtendedTrieNode) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 26; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetAttrString(__pyx_m, "ExtendedTrieNode", (PyObject *)&__pyx_type_3_sa_ExtendedTrieNode) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 26; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_ptype_3_sa_ExtendedTrieNode = &__pyx_type_3_sa_ExtendedTrieNode;
-  if (PyType_Ready(&__pyx_type_3_sa_TrieTable) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 35; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (__Pyx_SetAttrString(__pyx_m, "TrieTable", (PyObject *)&__pyx_type_3_sa_TrieTable) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 35; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyType_Ready(&__pyx_type_3_sa_TrieTable) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 37; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetAttrString(__pyx_m, "TrieTable", (PyObject *)&__pyx_type_3_sa_TrieTable) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 37; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_ptype_3_sa_TrieTable = &__pyx_type_3_sa_TrieTable;
   __pyx_vtabptr_3_sa_PhraseLocation = &__pyx_vtable_3_sa_PhraseLocation;
   __pyx_vtable_3_sa_PhraseLocation.contains = (int (*)(struct __pyx_obj_3_sa_PhraseLocation *, int))__pyx_f_3_sa_14PhraseLocation_contains;
-  if (PyType_Ready(&__pyx_type_3_sa_PhraseLocation) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 56; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (__Pyx_SetVtable(__pyx_type_3_sa_PhraseLocation.tp_dict, __pyx_vtabptr_3_sa_PhraseLocation) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 56; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (__Pyx_SetAttrString(__pyx_m, "PhraseLocation", (PyObject *)&__pyx_type_3_sa_PhraseLocation) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 56; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyType_Ready(&__pyx_type_3_sa_PhraseLocation) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 58; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetVtable(__pyx_type_3_sa_PhraseLocation.tp_dict, __pyx_vtabptr_3_sa_PhraseLocation) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 58; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetAttrString(__pyx_m, "PhraseLocation", (PyObject *)&__pyx_type_3_sa_PhraseLocation) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 58; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_ptype_3_sa_PhraseLocation = &__pyx_type_3_sa_PhraseLocation;
-  if (PyType_Ready(&__pyx_type_3_sa_Sampler) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 79; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (__Pyx_SetAttrString(__pyx_m, "Sampler", (PyObject *)&__pyx_type_3_sa_Sampler) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 79; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyType_Ready(&__pyx_type_3_sa_Sampler) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 80; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetAttrString(__pyx_m, "Sampler", (PyObject *)&__pyx_type_3_sa_Sampler) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 80; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_ptype_3_sa_Sampler = &__pyx_type_3_sa_Sampler;
   __pyx_vtabptr_3_sa_HieroCachingRuleFactory = &__pyx_vtable_3_sa_HieroCachingRuleFactory;
   __pyx_vtable_3_sa_HieroCachingRuleFactory.set_idmap = (PyObject *(*)(struct __pyx_obj_3_sa_HieroCachingRuleFactory *, struct __pyx_obj_3_sa_DataArray *))__pyx_f_3_sa_23HieroCachingRuleFactory_set_idmap;
@@ -61855,22 +65586,36 @@ PyMODINIT_FUNC PyInit__sa(void)
   __pyx_vtable_3_sa_HieroCachingRuleFactory.find_projection = (PyObject *(*)(struct __pyx_obj_3_sa_HieroCachingRuleFactory *, int, int, int *, int *, int *, int *))__pyx_f_3_sa_23HieroCachingRuleFactory_find_projection;
   __pyx_vtable_3_sa_HieroCachingRuleFactory.int_arr_extend = (int *(*)(struct __pyx_obj_3_sa_HieroCachingRuleFactory *, int *, int *, int *, int))__pyx_f_3_sa_23HieroCachingRuleFactory_int_arr_extend;
   __pyx_vtable_3_sa_HieroCachingRuleFactory.extract_phrases = (PyObject *(*)(struct __pyx_obj_3_sa_HieroCachingRuleFactory *, int, int, int *, int *, int *, int, int, int, int *, int *, int *, int, int, int))__pyx_f_3_sa_23HieroCachingRuleFactory_extract_phrases;
-  __pyx_vtable_3_sa_HieroCachingRuleFactory.create_alignments = (PyObject *(*)(struct __pyx_obj_3_sa_HieroCachingRuleFactory *, int *, int, PyObject *, PyObject *))__pyx_f_3_sa_23HieroCachingRuleFactory_create_alignments;
+  __pyx_vtable_3_sa_HieroCachingRuleFactory.create_alignments = (struct __pyx_obj_3_sa_IntList *(*)(struct __pyx_obj_3_sa_HieroCachingRuleFactory *, int *, int, PyObject *, PyObject *))__pyx_f_3_sa_23HieroCachingRuleFactory_create_alignments;
   __pyx_vtable_3_sa_HieroCachingRuleFactory.extract = (PyObject *(*)(struct __pyx_obj_3_sa_HieroCachingRuleFactory *, struct __pyx_obj_3_sa_Phrase *, struct __pyx_t_3_sa_Matching *, int *, int))__pyx_f_3_sa_23HieroCachingRuleFactory_extract;
-  if (PyType_Ready(&__pyx_type_3_sa_HieroCachingRuleFactory) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 201; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (__Pyx_SetVtable(__pyx_type_3_sa_HieroCachingRuleFactory.tp_dict, __pyx_vtabptr_3_sa_HieroCachingRuleFactory) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 201; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (__Pyx_SetAttrString(__pyx_m, "HieroCachingRuleFactory", (PyObject *)&__pyx_type_3_sa_HieroCachingRuleFactory) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 201; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyType_Ready(&__pyx_type_3_sa_HieroCachingRuleFactory) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 202; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetVtable(__pyx_type_3_sa_HieroCachingRuleFactory.tp_dict, __pyx_vtabptr_3_sa_HieroCachingRuleFactory) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 202; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetAttrString(__pyx_m, "HieroCachingRuleFactory", (PyObject *)&__pyx_type_3_sa_HieroCachingRuleFactory) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 202; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_ptype_3_sa_HieroCachingRuleFactory = &__pyx_type_3_sa_HieroCachingRuleFactory;
-  if (PyType_Ready(&__pyx_type_3_sa___pyx_scope_struct__read_bitext) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 71; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_3_sa___pyx_scope_struct__read_bitext = &__pyx_type_3_sa___pyx_scope_struct__read_bitext;
-  if (PyType_Ready(&__pyx_type_3_sa___pyx_scope_struct_1_genexpr) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 73; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_3_sa___pyx_scope_struct_1_genexpr = &__pyx_type_3_sa___pyx_scope_struct_1_genexpr;
-  if (PyType_Ready(&__pyx_type_3_sa___pyx_scope_struct_2_compute_stats) < 0) {__pyx_filename = __pyx_f[9]; __pyx_lineno = 36; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_3_sa___pyx_scope_struct_2_compute_stats = &__pyx_type_3_sa___pyx_scope_struct_2_compute_stats;
-  if (PyType_Ready(&__pyx_type_3_sa___pyx_scope_struct_3___iter__) < 0) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 141; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_3_sa___pyx_scope_struct_3___iter__ = &__pyx_type_3_sa___pyx_scope_struct_3___iter__;
-  if (PyType_Ready(&__pyx_type_3_sa___pyx_scope_struct_4_input) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 919; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_3_sa___pyx_scope_struct_4_input = &__pyx_type_3_sa___pyx_scope_struct_4_input;
+  if (PyType_Ready(&__pyx_type_3_sa___pyx_scope_struct____iter__) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 81; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_3_sa___pyx_scope_struct____iter__ = &__pyx_type_3_sa___pyx_scope_struct____iter__;
+  if (PyType_Ready(&__pyx_type_3_sa___pyx_scope_struct_1_read_bitext) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 71; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_3_sa___pyx_scope_struct_1_read_bitext = &__pyx_type_3_sa___pyx_scope_struct_1_read_bitext;
+  if (PyType_Ready(&__pyx_type_3_sa___pyx_scope_struct_2_genexpr) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 73; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_3_sa___pyx_scope_struct_2_genexpr = &__pyx_type_3_sa___pyx_scope_struct_2_genexpr;
+  if (PyType_Ready(&__pyx_type_3_sa___pyx_scope_struct_3_compute_stats) < 0) {__pyx_filename = __pyx_f[9]; __pyx_lineno = 36; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_3_sa___pyx_scope_struct_3_compute_stats = &__pyx_type_3_sa___pyx_scope_struct_3_compute_stats;
+  if (PyType_Ready(&__pyx_type_3_sa___pyx_scope_struct_4___iter__) < 0) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 141; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_3_sa___pyx_scope_struct_4___iter__ = &__pyx_type_3_sa___pyx_scope_struct_4___iter__;
+  if (PyType_Ready(&__pyx_type_3_sa___pyx_scope_struct_5___str__) < 0) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 183; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_3_sa___pyx_scope_struct_5___str__ = &__pyx_type_3_sa___pyx_scope_struct_5___str__;
+  if (PyType_Ready(&__pyx_type_3_sa___pyx_scope_struct_6_genexpr) < 0) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 187; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_3_sa___pyx_scope_struct_6_genexpr = &__pyx_type_3_sa___pyx_scope_struct_6_genexpr;
+  if (PyType_Ready(&__pyx_type_3_sa___pyx_scope_struct_7_alignments) < 0) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 190; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_3_sa___pyx_scope_struct_7_alignments = &__pyx_type_3_sa___pyx_scope_struct_7_alignments;
+  if (PyType_Ready(&__pyx_type_3_sa___pyx_scope_struct_8___iter__) < 0) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 15; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_3_sa___pyx_scope_struct_8___iter__ = &__pyx_type_3_sa___pyx_scope_struct_8___iter__;
+  if (PyType_Ready(&__pyx_type_3_sa___pyx_scope_struct_9___str__) < 0) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 20; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_3_sa___pyx_scope_struct_9___str__ = &__pyx_type_3_sa___pyx_scope_struct_9___str__;
+  if (PyType_Ready(&__pyx_type_3_sa___pyx_scope_struct_10_genexpr) < 0) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 21; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_3_sa___pyx_scope_struct_10_genexpr = &__pyx_type_3_sa___pyx_scope_struct_10_genexpr;
+  if (PyType_Ready(&__pyx_type_3_sa___pyx_scope_struct_11_input) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 923; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_3_sa___pyx_scope_struct_11_input = &__pyx_type_3_sa___pyx_scope_struct_11_input;
   /*--- Type import code ---*/
   /*--- Variable import code ---*/
   /*--- Function import code ---*/
@@ -61933,7 +65678,7 @@ PyMODINIT_FUNC PyInit__sa(void)
   __pyx_t_2 = PyObject_GetAttr(__pyx_t_1, __pyx_n_s__getLogger); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 15; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_1 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_k_tuple_138), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 15; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_k_tuple_140), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 15; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   if (PyObject_SetAttr(__pyx_m, __pyx_n_s__logger, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 15; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
@@ -62023,6 +65768,121 @@ PyMODINIT_FUNC PyInit__sa(void)
   if (PyObject_SetAttr(__pyx_m, __pyx_n_s__sym_fromstring, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[10]; __pyx_lineno = 104; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":1
+ * cdef StringMap FD = StringMap()             # <<<<<<<<<<<<<<
+ * 
+ * INITIAL_CAPACITY = 7 # default number of features
+ */
+  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_3_sa_StringMap)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_1);
+  __Pyx_XGOTREF(((PyObject *)__pyx_v_3_sa_FD));
+  __Pyx_DECREF(((PyObject *)__pyx_v_3_sa_FD));
+  __Pyx_GIVEREF(__pyx_t_1);
+  __pyx_v_3_sa_FD = ((struct __pyx_obj_3_sa_StringMap *)__pyx_t_1);
+  __pyx_t_1 = 0;
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":3
+ * cdef StringMap FD = StringMap()
+ * 
+ * INITIAL_CAPACITY = 7 # default number of features             # <<<<<<<<<<<<<<
+ * INCREMENT = INITIAL_CAPACITY # double size
+ * 
+ */
+  if (PyObject_SetAttr(__pyx_m, __pyx_n_s__INITIAL_CAPACITY, __pyx_int_7) < 0) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 3; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":4
+ * 
+ * INITIAL_CAPACITY = 7 # default number of features
+ * INCREMENT = INITIAL_CAPACITY # double size             # <<<<<<<<<<<<<<
+ * 
+ * cdef class FeatureVector:
+ */
+  __pyx_t_1 = __Pyx_GetName(__pyx_m, __pyx_n_s__INITIAL_CAPACITY); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 4; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_1);
+  if (PyObject_SetAttr(__pyx_m, __pyx_n_s__INCREMENT, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 4; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":39
+ * from libc.math cimport log10
+ * 
+ * MAXSCORE = -99             # <<<<<<<<<<<<<<
+ * EgivenFCoherent = 0
+ * SampleCountF = 1
+ */
+  if (PyObject_SetAttr(__pyx_m, __pyx_n_s__MAXSCORE, __pyx_int_neg_99) < 0) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 39; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":40
+ * 
+ * MAXSCORE = -99
+ * EgivenFCoherent = 0             # <<<<<<<<<<<<<<
+ * SampleCountF = 1
+ * CountEF = 2
+ */
+  if (PyObject_SetAttr(__pyx_m, __pyx_n_s__EgivenFCoherent, __pyx_int_0) < 0) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 40; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":41
+ * MAXSCORE = -99
+ * EgivenFCoherent = 0
+ * SampleCountF = 1             # <<<<<<<<<<<<<<
+ * CountEF = 2
+ * MaxLexFgivenE = 3
+ */
+  if (PyObject_SetAttr(__pyx_m, __pyx_n_s__SampleCountF, __pyx_int_1) < 0) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 41; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":42
+ * EgivenFCoherent = 0
+ * SampleCountF = 1
+ * CountEF = 2             # <<<<<<<<<<<<<<
+ * MaxLexFgivenE = 3
+ * MaxLexEgivenF = 4
+ */
+  if (PyObject_SetAttr(__pyx_m, __pyx_n_s__CountEF, __pyx_int_2) < 0) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 42; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":43
+ * SampleCountF = 1
+ * CountEF = 2
+ * MaxLexFgivenE = 3             # <<<<<<<<<<<<<<
+ * MaxLexEgivenF = 4
+ * IsSingletonF = 5
+ */
+  if (PyObject_SetAttr(__pyx_m, __pyx_n_s__MaxLexFgivenE, __pyx_int_3) < 0) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 43; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":44
+ * CountEF = 2
+ * MaxLexFgivenE = 3
+ * MaxLexEgivenF = 4             # <<<<<<<<<<<<<<
+ * IsSingletonF = 5
+ * IsSingletonFE = 6
+ */
+  if (PyObject_SetAttr(__pyx_m, __pyx_n_s__MaxLexEgivenF, __pyx_int_4) < 0) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 44; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":45
+ * MaxLexFgivenE = 3
+ * MaxLexEgivenF = 4
+ * IsSingletonF = 5             # <<<<<<<<<<<<<<
+ * IsSingletonFE = 6
+ * NFEATURES = 7
+ */
+  if (PyObject_SetAttr(__pyx_m, __pyx_n_s__IsSingletonF, __pyx_int_5) < 0) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 45; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":46
+ * MaxLexEgivenF = 4
+ * IsSingletonF = 5
+ * IsSingletonFE = 6             # <<<<<<<<<<<<<<
+ * NFEATURES = 7
+ * 
+ */
+  if (PyObject_SetAttr(__pyx_m, __pyx_n_s__IsSingletonFE, __pyx_int_6) < 0) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 46; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/features.pxi":47
+ * IsSingletonF = 5
+ * IsSingletonFE = 6
+ * NFEATURES = 7             # <<<<<<<<<<<<<<
+ * 
+ * cdef class DefaultScorer(Scorer):
+ */
+  if (PyObject_SetAttr(__pyx_m, __pyx_n_s__NFEATURES, __pyx_int_7) < 0) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 47; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+
   /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":5
  * # Much faster than the Python numbers reported there.
  * # Note to reader: this code is closer to C than Python
@@ -62038,13 +65898,49 @@ PyMODINIT_FUNC PyInit__sa(void)
   /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":11
  * from libc.math cimport fmod, ceil, floor, log
  * 
+ * from collections import defaultdict, Counter             # <<<<<<<<<<<<<<
+ * 
+ * cdef int PRECOMPUTE = 0
+ */
+  __pyx_t_1 = PyList_New(2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 11; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_1);
+  __Pyx_INCREF(((PyObject *)__pyx_n_s__defaultdict));
+  PyList_SET_ITEM(__pyx_t_1, 0, ((PyObject *)__pyx_n_s__defaultdict));
+  __Pyx_GIVEREF(((PyObject *)__pyx_n_s__defaultdict));
+  __Pyx_INCREF(((PyObject *)__pyx_n_s__Counter));
+  PyList_SET_ITEM(__pyx_t_1, 1, ((PyObject *)__pyx_n_s__Counter));
+  __Pyx_GIVEREF(((PyObject *)__pyx_n_s__Counter));
+  __pyx_t_2 = __Pyx_Import(((PyObject *)__pyx_n_s__collections), ((PyObject *)__pyx_t_1), -1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 11; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+  __pyx_t_1 = PyObject_GetAttr(__pyx_t_2, __pyx_n_s__defaultdict);
+  if (__pyx_t_1 == NULL) {
+    if (PyErr_ExceptionMatches(PyExc_AttributeError)) __Pyx_RaiseImportError(__pyx_n_s__defaultdict);
+    if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 11; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  }
+  __Pyx_GOTREF(__pyx_t_1);
+  if (PyObject_SetAttr(__pyx_m, __pyx_n_s__defaultdict, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 11; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_1 = PyObject_GetAttr(__pyx_t_2, __pyx_n_s__Counter);
+  if (__pyx_t_1 == NULL) {
+    if (PyErr_ExceptionMatches(PyExc_AttributeError)) __Pyx_RaiseImportError(__pyx_n_s__Counter);
+    if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 11; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  }
+  __Pyx_GOTREF(__pyx_t_1);
+  if (PyObject_SetAttr(__pyx_m, __pyx_n_s__Counter, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 11; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":13
+ * from collections import defaultdict, Counter
+ * 
  * cdef int PRECOMPUTE = 0             # <<<<<<<<<<<<<<
  * cdef int MERGE = 1
  * cdef int BAEZA_YATES = 2
  */
   __pyx_v_3_sa_PRECOMPUTE = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":12
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":14
  * 
  * cdef int PRECOMPUTE = 0
  * cdef int MERGE = 1             # <<<<<<<<<<<<<<
@@ -62053,7 +65949,7 @@ PyMODINIT_FUNC PyInit__sa(void)
  */
   __pyx_v_3_sa_MERGE = 1;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":13
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":15
  * cdef int PRECOMPUTE = 0
  * cdef int MERGE = 1
  * cdef int BAEZA_YATES = 2             # <<<<<<<<<<<<<<
@@ -62062,55 +65958,55 @@ PyMODINIT_FUNC PyInit__sa(void)
  */
   __pyx_v_3_sa_BAEZA_YATES = 2;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":16
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":18
  * 
  * # NOTE: was encoded as a non-terminal in the previous version
  * cdef int EPSILON = sym_fromstring('*EPS*', True)             # <<<<<<<<<<<<<<
  * 
  * cdef class TrieNode:
  */
-  __pyx_t_1 = __Pyx_GetName(__pyx_m, __pyx_n_s__sym_fromstring); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 16; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = __Pyx_PyBool_FromLong(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 16; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = __Pyx_GetName(__pyx_m, __pyx_n_s__sym_fromstring); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 18; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 16; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_PyBool_FromLong(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 18; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_1);
+  __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 18; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_142));
-  PyTuple_SET_ITEM(__pyx_t_3, 0, ((PyObject *)__pyx_kp_s_142));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_142));
-  PyTuple_SET_ITEM(__pyx_t_3, 1, __pyx_t_2);
-  __Pyx_GIVEREF(__pyx_t_2);
-  __pyx_t_2 = 0;
-  __pyx_t_2 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 16; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_2);
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
-  __pyx_t_4 = __Pyx_PyInt_AsInt(__pyx_t_2); if (unlikely((__pyx_t_4 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 16; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_INCREF(((PyObject *)__pyx_kp_s_144));
+  PyTuple_SET_ITEM(__pyx_t_3, 0, ((PyObject *)__pyx_kp_s_144));
+  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_144));
+  PyTuple_SET_ITEM(__pyx_t_3, 1, __pyx_t_1);
+  __Pyx_GIVEREF(__pyx_t_1);
+  __pyx_t_1 = 0;
+  __pyx_t_1 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 18; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+  __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
+  __pyx_t_4 = __Pyx_PyInt_AsInt(__pyx_t_1); if (unlikely((__pyx_t_4 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 18; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __pyx_v_3_sa_EPSILON = __pyx_t_4;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":39
+  /* "/Users/vchahun/Sandbox/cdec/python/src/sa/rulefactory.pxi":41
  *     cdef public int count
  *     cdef public root
  *     def __cinit__(self, extended=False):             # <<<<<<<<<<<<<<
  *         self.count = 0
  *         self.extended = extended
  */
-  __pyx_t_2 = __Pyx_PyBool_FromLong(0); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 39; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_2);
-  __pyx_k_99 = __pyx_t_2;
-  __Pyx_GIVEREF(__pyx_t_2);
-  __pyx_t_2 = 0;
+  __pyx_t_1 = __Pyx_PyBool_FromLong(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 41; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_1);
+  __pyx_k_101 = __pyx_t_1;
+  __Pyx_GIVEREF(__pyx_t_1);
+  __pyx_t_1 = 0;
 
   /* "_sa.pyx":1
  * import logging             # <<<<<<<<<<<<<<
  * import resource
  * import gzip
  */
-  __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_2));
-  if (PyObject_SetAttr(__pyx_m, __pyx_n_s____test__, ((PyObject *)__pyx_t_2)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
+  __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(((PyObject *)__pyx_t_1));
+  if (PyObject_SetAttr(__pyx_m, __pyx_n_s____test__, ((PyObject *)__pyx_t_1)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
   goto __pyx_L0;
   __pyx_L1_error:;
   __Pyx_XDECREF(__pyx_t_1);
@@ -62929,6 +66825,15 @@ bad:
     return module;
 }
 
+static CYTHON_INLINE void __Pyx_RaiseImportError(PyObject *name) {
+#if PY_MAJOR_VERSION < 3
+    PyErr_Format(PyExc_ImportError, "cannot import name %.230s",
+                 PyString_AsString(name));
+#else
+    PyErr_Format(PyExc_ImportError, "cannot import name %S", name);
+#endif
+}
+
 static CYTHON_INLINE int __Pyx_PyBytes_Equals(PyObject* s1, PyObject* s2, int equals) {
 #if CYTHON_COMPILING_IN_PYPY
     return PyObject_RichCompareBool(s1, s2, equals);
@@ -63009,6 +66914,415 @@ static CYTHON_INLINE int __Pyx_PyUnicode_Equals(PyObject* s1, PyObject* s2, int
 #endif
 }
 
+static PyObject *
+__Pyx_CyFunction_get_doc(__pyx_CyFunctionObject *op, CYTHON_UNUSED void *closure)
+{
+    if (op->func_doc == NULL && op->func.m_ml->ml_doc) {
+#if PY_MAJOR_VERSION >= 3
+        op->func_doc = PyUnicode_FromString(op->func.m_ml->ml_doc);
+#else
+        op->func_doc = PyString_FromString(op->func.m_ml->ml_doc);
+#endif
+    }
+    if (op->func_doc == 0) {
+        Py_INCREF(Py_None);
+        return Py_None;
+    }
+    Py_INCREF(op->func_doc);
+    return op->func_doc;
+}
+static int
+__Pyx_CyFunction_set_doc(__pyx_CyFunctionObject *op, PyObject *value)
+{
+    PyObject *tmp = op->func_doc;
+    if (value == NULL)
+        op->func_doc = Py_None; /* Mark as deleted */
+    else
+        op->func_doc = value;
+    Py_INCREF(op->func_doc);
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_name(__pyx_CyFunctionObject *op)
+{
+    if (op->func_name == NULL) {
+#if PY_MAJOR_VERSION >= 3
+        op->func_name = PyUnicode_InternFromString(op->func.m_ml->ml_name);
+#else
+        op->func_name = PyString_InternFromString(op->func.m_ml->ml_name);
+#endif
+    }
+    Py_INCREF(op->func_name);
+    return op->func_name;
+}
+static int
+__Pyx_CyFunction_set_name(__pyx_CyFunctionObject *op, PyObject *value)
+{
+    PyObject *tmp;
+#if PY_MAJOR_VERSION >= 3
+    if (value == NULL || !PyUnicode_Check(value)) {
+#else
+    if (value == NULL || !PyString_Check(value)) {
+#endif
+        PyErr_SetString(PyExc_TypeError,
+                        "__name__ must be set to a string object");
+        return -1;
+    }
+    tmp = op->func_name;
+    Py_INCREF(value);
+    op->func_name = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_self(__pyx_CyFunctionObject *m, CYTHON_UNUSED void *closure)
+{
+    PyObject *self;
+    self = m->func_closure;
+    if (self == NULL)
+        self = Py_None;
+    Py_INCREF(self);
+    return self;
+}
+static PyObject *
+__Pyx_CyFunction_get_dict(__pyx_CyFunctionObject *op)
+{
+    if (op->func_dict == NULL) {
+        op->func_dict = PyDict_New();
+        if (op->func_dict == NULL)
+            return NULL;
+    }
+    Py_INCREF(op->func_dict);
+    return op->func_dict;
+}
+static int
+__Pyx_CyFunction_set_dict(__pyx_CyFunctionObject *op, PyObject *value)
+{
+    PyObject *tmp;
+    if (value == NULL) {
+        PyErr_SetString(PyExc_TypeError,
+               "function's dictionary may not be deleted");
+        return -1;
+    }
+    if (!PyDict_Check(value)) {
+        PyErr_SetString(PyExc_TypeError,
+               "setting function's dictionary to a non-dict");
+        return -1;
+    }
+    tmp = op->func_dict;
+    Py_INCREF(value);
+    op->func_dict = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_globals(CYTHON_UNUSED __pyx_CyFunctionObject *op)
+{
+    PyObject* dict = PyModule_GetDict(__pyx_m);
+    Py_XINCREF(dict);
+    return dict;
+}
+static PyObject *
+__Pyx_CyFunction_get_closure(CYTHON_UNUSED __pyx_CyFunctionObject *op)
+{
+    Py_INCREF(Py_None);
+    return Py_None;
+}
+static PyObject *
+__Pyx_CyFunction_get_code(__pyx_CyFunctionObject *op)
+{
+    PyObject* result = (op->func_code) ? op->func_code : Py_None;
+    Py_INCREF(result);
+    return result;
+}
+static PyObject *
+__Pyx_CyFunction_get_defaults(__pyx_CyFunctionObject *op)
+{
+    if (op->defaults_tuple) {
+        Py_INCREF(op->defaults_tuple);
+        return op->defaults_tuple;
+    }
+    if (op->defaults_getter) {
+        PyObject *res = op->defaults_getter((PyObject *) op);
+        if (res) {
+            Py_INCREF(res);
+            op->defaults_tuple = res;
+        }
+        return res;
+    }
+    Py_INCREF(Py_None);
+    return Py_None;
+}
+static PyGetSetDef __pyx_CyFunction_getsets[] = {
+    {(char *) "func_doc", (getter)__Pyx_CyFunction_get_doc, (setter)__Pyx_CyFunction_set_doc, 0, 0},
+    {(char *) "__doc__",  (getter)__Pyx_CyFunction_get_doc, (setter)__Pyx_CyFunction_set_doc, 0, 0},
+    {(char *) "func_name", (getter)__Pyx_CyFunction_get_name, (setter)__Pyx_CyFunction_set_name, 0, 0},
+    {(char *) "__name__", (getter)__Pyx_CyFunction_get_name, (setter)__Pyx_CyFunction_set_name, 0, 0},
+    {(char *) "__self__", (getter)__Pyx_CyFunction_get_self, 0, 0, 0},
+    {(char *) "func_dict", (getter)__Pyx_CyFunction_get_dict, (setter)__Pyx_CyFunction_set_dict, 0, 0},
+    {(char *) "__dict__", (getter)__Pyx_CyFunction_get_dict, (setter)__Pyx_CyFunction_set_dict, 0, 0},
+    {(char *) "func_globals", (getter)__Pyx_CyFunction_get_globals, 0, 0, 0},
+    {(char *) "__globals__", (getter)__Pyx_CyFunction_get_globals, 0, 0, 0},
+    {(char *) "func_closure", (getter)__Pyx_CyFunction_get_closure, 0, 0, 0},
+    {(char *) "__closure__", (getter)__Pyx_CyFunction_get_closure, 0, 0, 0},
+    {(char *) "func_code", (getter)__Pyx_CyFunction_get_code, 0, 0, 0},
+    {(char *) "__code__", (getter)__Pyx_CyFunction_get_code, 0, 0, 0},
+    {(char *) "func_defaults", (getter)__Pyx_CyFunction_get_defaults, 0, 0, 0},
+    {(char *) "__defaults__", (getter)__Pyx_CyFunction_get_defaults, 0, 0, 0},
+    {0, 0, 0, 0, 0}
+};
+#ifndef PY_WRITE_RESTRICTED /* < Py2.5 */
+#define PY_WRITE_RESTRICTED WRITE_RESTRICTED
+#endif
+static PyMemberDef __pyx_CyFunction_members[] = {
+    {(char *) "__module__", T_OBJECT, offsetof(__pyx_CyFunctionObject, func.m_module), PY_WRITE_RESTRICTED, 0},
+    {0, 0, 0,  0, 0}
+};
+static PyObject *
+__Pyx_CyFunction_reduce(__pyx_CyFunctionObject *m, CYTHON_UNUSED PyObject *args)
+{
+#if PY_MAJOR_VERSION >= 3
+    return PyUnicode_FromString(m->func.m_ml->ml_name);
+#else
+    return PyString_FromString(m->func.m_ml->ml_name);
+#endif
+}
+static PyMethodDef __pyx_CyFunction_methods[] = {
+    {__Pyx_NAMESTR("__reduce__"), (PyCFunction)__Pyx_CyFunction_reduce, METH_VARARGS, 0},
+    {0, 0, 0, 0}
+};
+static PyObject *__Pyx_CyFunction_New(PyTypeObject *type, PyMethodDef *ml, int flags,
+                                      PyObject *closure, PyObject *module, PyObject* code) {
+    __pyx_CyFunctionObject *op = PyObject_GC_New(__pyx_CyFunctionObject, type);
+    if (op == NULL)
+        return NULL;
+    op->flags = flags;
+    op->func_weakreflist = NULL;
+    op->func.m_ml = ml;
+    op->func.m_self = (PyObject *) op;
+    Py_XINCREF(closure);
+    op->func_closure = closure;
+    Py_XINCREF(module);
+    op->func.m_module = module;
+    op->func_dict = NULL;
+    op->func_name = NULL;
+    op->func_doc = NULL;
+    op->func_classobj = NULL;
+    Py_XINCREF(code);
+    op->func_code = code;
+    op->defaults_pyobjects = 0;
+    op->defaults = NULL;
+    op->defaults_tuple = NULL;
+    op->defaults_getter = NULL;
+    PyObject_GC_Track(op);
+    return (PyObject *) op;
+}
+static int
+__Pyx_CyFunction_clear(__pyx_CyFunctionObject *m)
+{
+    Py_CLEAR(m->func_closure);
+    Py_CLEAR(m->func.m_module);
+    Py_CLEAR(m->func_dict);
+    Py_CLEAR(m->func_name);
+    Py_CLEAR(m->func_doc);
+    Py_CLEAR(m->func_code);
+    Py_CLEAR(m->func_classobj);
+    Py_CLEAR(m->defaults_tuple);
+    if (m->defaults) {
+        PyObject **pydefaults = __Pyx_CyFunction_Defaults(PyObject *, m);
+        int i;
+        for (i = 0; i < m->defaults_pyobjects; i++)
+            Py_XDECREF(pydefaults[i]);
+        PyMem_Free(m->defaults);
+        m->defaults = NULL;
+    }
+    return 0;
+}
+static void __Pyx_CyFunction_dealloc(__pyx_CyFunctionObject *m)
+{
+    PyObject_GC_UnTrack(m);
+    if (m->func_weakreflist != NULL)
+        PyObject_ClearWeakRefs((PyObject *) m);
+    __Pyx_CyFunction_clear(m);
+    PyObject_GC_Del(m);
+}
+static int __Pyx_CyFunction_traverse(__pyx_CyFunctionObject *m, visitproc visit, void *arg)
+{
+    Py_VISIT(m->func_closure);
+    Py_VISIT(m->func.m_module);
+    Py_VISIT(m->func_dict);
+    Py_VISIT(m->func_name);
+    Py_VISIT(m->func_doc);
+    Py_VISIT(m->func_code);
+    Py_VISIT(m->func_classobj);
+    Py_VISIT(m->defaults_tuple);
+    if (m->defaults) {
+        PyObject **pydefaults = __Pyx_CyFunction_Defaults(PyObject *, m);
+        int i;
+        for (i = 0; i < m->defaults_pyobjects; i++)
+            Py_VISIT(pydefaults[i]);
+    }
+    return 0;
+}
+static PyObject *__Pyx_CyFunction_descr_get(PyObject *func, PyObject *obj, PyObject *type)
+{
+    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
+    if (m->flags & __Pyx_CYFUNCTION_STATICMETHOD) {
+        Py_INCREF(func);
+        return func;
+    }
+    if (m->flags & __Pyx_CYFUNCTION_CLASSMETHOD) {
+        if (type == NULL)
+            type = (PyObject *)(Py_TYPE(obj));
+        return PyMethod_New(func,
+                            type, (PyObject *)(Py_TYPE(type)));
+    }
+    if (obj == Py_None)
+        obj = NULL;
+    return PyMethod_New(func, obj, type);
+}
+static PyObject*
+__Pyx_CyFunction_repr(__pyx_CyFunctionObject *op)
+{
+    PyObject *func_name = __Pyx_CyFunction_get_name(op);
+#if PY_MAJOR_VERSION >= 3
+    return PyUnicode_FromFormat("<cyfunction %U at %p>",
+                                func_name, (void *)op);
+#else
+    return PyString_FromFormat("<cyfunction %s at %p>",
+                               PyString_AsString(func_name), (void *)op);
+#endif
+}
+#if CYTHON_COMPILING_IN_PYPY
+static PyObject * __Pyx_CyFunction_Call(PyObject *func, PyObject *arg, PyObject *kw) {
+    PyCFunctionObject* f = (PyCFunctionObject*)func;
+    PyCFunction meth = PyCFunction_GET_FUNCTION(func);
+    PyObject *self = PyCFunction_GET_SELF(func);
+    Py_ssize_t size;
+    switch (PyCFunction_GET_FLAGS(func) & ~(METH_CLASS | METH_STATIC | METH_COEXIST)) {
+    case METH_VARARGS:
+        if (likely(kw == NULL) || PyDict_Size(kw) == 0)
+            return (*meth)(self, arg);
+        break;
+    case METH_VARARGS | METH_KEYWORDS:
+        return (*(PyCFunctionWithKeywords)meth)(self, arg, kw);
+    case METH_NOARGS:
+        if (likely(kw == NULL) || PyDict_Size(kw) == 0) {
+            size = PyTuple_GET_SIZE(arg);
+            if (size == 0)
+                return (*meth)(self, NULL);
+            PyErr_Format(PyExc_TypeError,
+                "%.200s() takes no arguments (%zd given)",
+                f->m_ml->ml_name, size);
+            return NULL;
+        }
+        break;
+    case METH_O:
+        if (likely(kw == NULL) || PyDict_Size(kw) == 0) {
+            size = PyTuple_GET_SIZE(arg);
+            if (size == 1)
+                return (*meth)(self, PyTuple_GET_ITEM(arg, 0));
+            PyErr_Format(PyExc_TypeError,
+                "%.200s() takes exactly one argument (%zd given)",
+                f->m_ml->ml_name, size);
+            return NULL;
+        }
+        break;
+    default:
+        PyErr_SetString(PyExc_SystemError, "Bad call flags in "
+                        "__Pyx_CyFunction_Call. METH_OLDARGS is no "
+                        "longer supported!");
+        return NULL;
+    }
+    PyErr_Format(PyExc_TypeError, "%.200s() takes no keyword arguments",
+                 f->m_ml->ml_name);
+    return NULL;
+}
+#else
+static PyObject * __Pyx_CyFunction_Call(PyObject *func, PyObject *arg, PyObject *kw) {
+	return PyCFunction_Call(func, arg, kw);
+}
+#endif
+static PyTypeObject __pyx_CyFunctionType_type = {
+    PyVarObject_HEAD_INIT(0, 0)
+    __Pyx_NAMESTR("cython_function_or_method"), /*tp_name*/
+    sizeof(__pyx_CyFunctionObject),   /*tp_basicsize*/
+    0,                                  /*tp_itemsize*/
+    (destructor) __Pyx_CyFunction_dealloc, /*tp_dealloc*/
+    0,                                  /*tp_print*/
+    0,                                  /*tp_getattr*/
+    0,                                  /*tp_setattr*/
+#if PY_MAJOR_VERSION < 3
+    0,                                  /*tp_compare*/
+#else
+    0,                                  /*reserved*/
+#endif
+    (reprfunc) __Pyx_CyFunction_repr,   /*tp_repr*/
+    0,                                  /*tp_as_number*/
+    0,                                  /*tp_as_sequence*/
+    0,                                  /*tp_as_mapping*/
+    0,                                  /*tp_hash*/
+    __Pyx_CyFunction_Call,              /*tp_call*/
+    0,                                  /*tp_str*/
+    0,                                  /*tp_getattro*/
+    0,                                  /*tp_setattro*/
+    0,                                  /*tp_as_buffer*/
+    Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC, /* tp_flags*/
+    0,                                  /*tp_doc*/
+    (traverseproc) __Pyx_CyFunction_traverse,   /*tp_traverse*/
+    (inquiry) __Pyx_CyFunction_clear,   /*tp_clear*/
+    0,                                  /*tp_richcompare*/
+    offsetof(__pyx_CyFunctionObject, func_weakreflist), /* tp_weaklistoffse */
+    0,                                  /*tp_iter*/
+    0,                                  /*tp_iternext*/
+    __pyx_CyFunction_methods,           /*tp_methods*/
+    __pyx_CyFunction_members,           /*tp_members*/
+    __pyx_CyFunction_getsets,           /*tp_getset*/
+    0,                                  /*tp_base*/
+    0,                                  /*tp_dict*/
+    __Pyx_CyFunction_descr_get,         /*tp_descr_get*/
+    0,                                  /*tp_descr_set*/
+    offsetof(__pyx_CyFunctionObject, func_dict),/*tp_dictoffset*/
+    0,                                  /*tp_init*/
+    0,                                  /*tp_alloc*/
+    0,                                  /*tp_new*/
+    0,                                  /*tp_free*/
+    0,                                  /*tp_is_gc*/
+    0,                                  /*tp_bases*/
+    0,                                  /*tp_mro*/
+    0,                                  /*tp_cache*/
+    0,                                  /*tp_subclasses*/
+    0,                                  /*tp_weaklist*/
+    0,                                  /*tp_del*/
+#if PY_VERSION_HEX >= 0x02060000
+    0,                                  /*tp_version_tag*/
+#endif
+};
+static int __Pyx_CyFunction_init(void) {
+#if !CYTHON_COMPILING_IN_PYPY
+    __pyx_CyFunctionType_type.tp_call = PyCFunction_Call;
+#endif
+    if (PyType_Ready(&__pyx_CyFunctionType_type) < 0)
+        return -1;
+    __pyx_CyFunctionType = &__pyx_CyFunctionType_type;
+    return 0;
+}
+static CYTHON_INLINE void *__Pyx_CyFunction_InitDefaults(PyObject *func, size_t size, int pyobjects) {
+    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
+    m->defaults = PyMem_Malloc(size);
+    if (!m->defaults)
+        return PyErr_NoMemory();
+    memset(m->defaults, 0, sizeof(size));
+    m->defaults_pyobjects = pyobjects;
+    return m->defaults;
+}
+static CYTHON_INLINE void __Pyx_CyFunction_SetDefaultsTuple(PyObject *func, PyObject *tuple) {
+    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
+    m->defaults_tuple = tuple;
+    Py_INCREF(tuple);
+}
+
 static CYTHON_INLINE unsigned char __Pyx_PyInt_AsUnsignedChar(PyObject* x) {
     const unsigned char neg_one = (unsigned char)-1, const_zero = 0;
     const int is_unsigned = neg_one > const_zero;
diff --git a/python/src/sa/_sa.pxd b/python/src/sa/_sa.pxd
index d390bfc5..f1cd8e29 100644
--- a/python/src/sa/_sa.pxd
+++ b/python/src/sa/_sa.pxd
@@ -1,3 +1,31 @@
+from libc.stdio cimport FILE
+
+cdef class FloatList:
+    cdef int size
+    cdef int increment
+    cdef int len
+    cdef float* arr
+    cdef void set(self, int i, float v)
+    cdef void write_handle(self, FILE* f)
+    cdef void read_handle(self, FILE* f)
+
+cdef class IntList:
+    cdef int size
+    cdef int increment
+    cdef int len
+    cdef int* arr
+    cdef void set(self, int i, int val)
+    cdef void _append(self, int val)
+    cdef void _extend(self, IntList other)
+    cdef void _extend_arr(self, int* other, int other_len)
+    cdef void _clear(self)
+    cdef void write_handle(self, FILE* f)
+    cdef void read_handle(self, FILE* f)
+
+cdef class FeatureVector:
+    cdef IntList names
+    cdef FloatList values
+
 cdef class Phrase:
     cdef int *syms
     cdef int n, *varpos, n_vars
@@ -5,11 +33,11 @@ cdef class Phrase:
     cdef public int chunklen(self, int k)
 
 cdef class Rule:
-    cdef public int lhs
+    cdef int lhs
     cdef readonly Phrase f, e
-    cdef float *cscores
+    cdef FeatureVector scores
     cdef int n_scores
-    cdef public word_alignments
+    cdef word_alignments
 
 cdef char* sym_tostring(int sym)
 cdef char* sym_tocat(int sym)
diff --git a/python/src/sa/_sa.pyx b/python/src/sa/_sa.pyx
index 710f8cb4..bb3a4d38 100644
--- a/python/src/sa/_sa.pyx
+++ b/python/src/sa/_sa.pyx
@@ -26,4 +26,5 @@ include "sym.pxi"
 include "rule.pxi"
 include "precomputation.pxi"
 include "suffix_array.pxi"
+include "features.pxi"
 include "rulefactory.pxi"
diff --git a/python/src/sa/features.pxi b/python/src/sa/features.pxi
new file mode 100644
index 00000000..fcb93f26
--- /dev/null
+++ b/python/src/sa/features.pxi
@@ -0,0 +1,34 @@
+cdef StringMap FD = StringMap()
+
+INITIAL_CAPACITY = 7 # default number of features
+INCREMENT = INITIAL_CAPACITY # double size
+
+cdef class FeatureVector:
+    def __cinit__(self):
+        self.names = IntList(INITIAL_CAPACITY, INCREMENT)
+        self.values = FloatList(INITIAL_CAPACITY, INCREMENT)
+
+    def set(self, unsigned name, float value):
+        self.names.append(name)
+        self.values.append(value)
+
+    def __iter__(self):
+        cdef unsigned i
+        for i in range(self.names.len):
+            yield (FD.word(self.names[i]), self.values[i])
+
+    def __str__(self):
+        return ' '.join('%s=%s' % feat for feat in self)
+
+cdef class Scorer:
+    cdef models
+    def __init__(self, *models):
+        names = [FD.index(<char *>model.__name__) for model in models]
+        self.models = zip(names, models)
+
+    cdef FeatureVector score(self, Phrase fphrase, Phrase ephrase,
+            unsigned paircount, unsigned fcount, unsigned fsample_count):
+        cdef FeatureVector scores = FeatureVector()
+        for name, model in self.models:
+            scores.set(name, model(fphrase, ephrase, paircount, fcount, fsample_count))
+        return scores
diff --git a/python/src/sa/float_list.pxi b/python/src/sa/float_list.pxi
index 88ffd5fc..b98e444f 100644
--- a/python/src/sa/float_list.pxi
+++ b/python/src/sa/float_list.pxi
@@ -7,10 +7,6 @@ from libc.stdlib cimport malloc, realloc, free
 from libc.string cimport memset, strcpy, strlen
 
 cdef class FloatList:
-    cdef int size
-    cdef int increment
-    cdef int len
-    cdef float* arr
 
     def __cinit__(self, int size=0, int increment=1, int initial_len=0):
         if initial_len > size:
diff --git a/python/src/sa/int_list.pxi b/python/src/sa/int_list.pxi
index ad14bc9c..63c0fe67 100644
--- a/python/src/sa/int_list.pxi
+++ b/python/src/sa/int_list.pxi
@@ -7,10 +7,6 @@ from libc.stdlib cimport malloc, realloc, free
 from libc.string cimport memset, memcpy
 
 cdef class IntList:
-    cdef int size
-    cdef int increment
-    cdef int len
-    cdef int* arr
 
     def __cinit__(self, int size=0, int increment=1, int initial_len=0):
         if initial_len > size:
@@ -82,6 +78,11 @@ cdef class IntList:
     def __dealloc__(self):
         free(self.arr)
 
+    def __iter__(self):
+        cdef int i
+        for i in range(self.len):
+            yield self.arr[i]
+
     def __getitem__(self, index):
         cdef int i, j, k
         if isinstance(index, int):
diff --git a/python/src/sa/rule.pxi b/python/src/sa/rule.pxi
index bf1a83c6..98fbac76 100644
--- a/python/src/sa/rule.pxi
+++ b/python/src/sa/rule.pxi
@@ -31,7 +31,7 @@ cdef class Phrase:
         for i from 0 <= i < self.n:
             s = self.syms[i]
             strs.append(sym_tostring(s))
-        return " ".join(strs)
+        return ' '.join(strs)
 
     def handle(self):
         """return a hashable representation that normalizes the ordering
@@ -60,7 +60,7 @@ cdef class Phrase:
                 s = sym_setindex(s,i)
                 i = i + 1
             norm.append(sym_tostring(s))
-        return " ".join(norm)
+        return ' '.join(norm)
 
     def arity(self):
         return self.n_vars
@@ -158,45 +158,20 @@ cdef class Phrase:
 
 cdef class Rule:
 
-    def __cinit__(self, int lhs, Phrase f, Phrase e,
-            scores=None, word_alignments=None):
-        cdef int i, n
-        cdef char *rest
-
-        if not sym_isvar(lhs):
-            raise Exception('Invalid LHS symbol: %d' % lhs)
-
+    def __cinit__(self, int lhs, Phrase f, Phrase e, scores=None, word_alignments=None):
+        if not sym_isvar(lhs): raise Exception('Invalid LHS symbol: %d' % lhs)
         self.lhs = lhs
         self.f = f
         self.e = e
-
         self.word_alignments = word_alignments
-        if scores is None:
-            self.cscores = NULL
-            self.n_scores = 0
-        else:
-            n = len(scores)
-            self.cscores = <float *>malloc(n*sizeof(float))
-            self.n_scores = n
-            for i from 0 <= i < n:
-                self.cscores[i] = scores[i]
-
-    def __dealloc__(self):
-        if self.cscores != NULL:
-            free(self.cscores)
+        self.scores = scores
 
     def __hash__(self):
         return hash((self.lhs, self.f, self.e))
 
     def __cmp__(self, Rule other):
-        return cmp((self.lhs, self.f, self.e, self.word_alignments), (other.lhs, other.f, other.e, self.word_alignments))
-
-    def __iadd__(self, Rule other):
-        if self.n_scores != other.n_scores:
-            raise ValueError
-        for i from 0 <= i < self.n_scores:
-            self.cscores[i] = self.cscores[i] + other.cscores[i]
-        return self
+        return cmp((self.lhs, self.f, self.e, self.word_alignments),
+                (other.lhs, other.f, other.e, self.word_alignments))
 
     def fmerge(self, Phrase f):
         if self.f == f:
@@ -206,31 +181,12 @@ cdef class Rule:
         return self.f.arity()
 
     def __str__(self):
-        scorestrs = []
-        for i from 0 <= i < self.n_scores:
-            scorestrs.append(str(self.cscores[i]))
-        fields = [sym_tostring(self.lhs), str(self.f), str(self.e), " ".join(scorestrs)]
+        cdef unsigned i
+        fields = [sym_tostring(self.lhs), str(self.f), str(self.e), str(self.scores)]
         if self.word_alignments is not None:
-            alignstr = []
-            for i from 0 <= i < len(self.word_alignments):
-                alignstr.append("%d-%d" % (self.word_alignments[i]/65536, self.word_alignments[i]%65536))
-            #for s,t in self.word_alignments:
-                 #alignstr.append("%d-%d" % (s,t)) 
-            fields.append(" ".join(alignstr))
-        
-        return " ||| ".join(fields)
+            fields.append(' '.join('%d-%d' % a for a in self.alignments()))
+        return ' ||| '.join(fields)
 
-    property scores:
-        def __get__(self):
-            s = [None]*self.n_scores
-            for i from 0 <= i < self.n_scores:
-                s[i] = self.cscores[i]
-            return s
-
-        def __set__(self, s):
-            if self.cscores != NULL:
-                free(self.cscores)
-            self.cscores = <float *>malloc(len(s)*sizeof(float))
-            self.n_scores = len(s)
-            for i from 0 <= i < self.n_scores:
-                self.cscores[i] = s[i]
+    def alignments(self):
+        for point in self.word_alignments:
+            yield point/65536, point%65536
diff --git a/python/src/sa/rulefactory.pxi b/python/src/sa/rulefactory.pxi
index 1c8d25a4..34a002c5 100644
--- a/python/src/sa/rulefactory.pxi
+++ b/python/src/sa/rulefactory.pxi
@@ -8,6 +8,8 @@ from libc.stdlib cimport malloc, realloc, free
 from libc.string cimport memset, memcpy
 from libc.math cimport fmod, ceil, floor, log
 
+from collections import defaultdict, Counter
+
 cdef int PRECOMPUTE = 0
 cdef int MERGE = 1
 cdef int BAEZA_YATES = 2
@@ -73,8 +75,7 @@ cdef class PhraseLocation:
         self.arr_high = arr_high
         self.arr = arr
         self.num_subpatterns = num_subpatterns
-
-
+            
 
 cdef class Sampler:
     '''A Sampler implements a logic for choosing
@@ -208,6 +209,7 @@ cdef class HieroCachingRuleFactory:
 
     cdef TrieTable rules
     cdef Sampler sampler
+    cdef Scorer scorer
 
     cdef int max_chunks
     cdef int max_target_chunks
@@ -359,7 +361,8 @@ cdef class HieroCachingRuleFactory:
         self.findexes = IntList(initial_len=10)
         self.findexes1 = IntList(initial_len=10)
 
-    def configure(self, SuffixArray fsarray, DataArray edarray, Sampler sampler):
+    def configure(self, SuffixArray fsarray, DataArray edarray,
+            Sampler sampler, Scorer scorer):
         '''This gives the RuleFactory access to the Context object.
         Here we also use it to precompute the most expensive intersections
         in the corpus quickly.'''
@@ -370,6 +373,7 @@ cdef class HieroCachingRuleFactory:
         self.eid2symid = self.set_idmap(self.eda)
         self.precompute()
         self.sampler = sampler
+        self.scorer = scorer
 
     cdef set_idmap(self, DataArray darray):
         cdef int word_id, new_word_id, N
@@ -916,7 +920,7 @@ cdef class HieroCachingRuleFactory:
                     candidate.append([next_id,curr[1]+jump])
         return sorted(result);
 
-    def input(self, fwords, models):
+    def input(self, fwords):
         '''When this function is called on the RuleFactory,
         it looks up all of the rules that can be used to translate
         the input sentence'''
@@ -1074,18 +1078,12 @@ cdef class HieroCachingRuleFactory:
                         extract_stop = monitor_cpu()
                         self.extract_time = self.extract_time + extract_stop - extract_start
                         if len(extracts) > 0:
-                            fphrases = {}
-                            fals = {}
-                            fcount = {}
+                            fcount = Counter()
+                            fphrases = defaultdict(lambda: defaultdict(Counter))
                             for f, e, count, als in extracts:
-                                fcount.setdefault(f, 0.0)
-                                fcount[f] = fcount[f] + count
-                                fphrases.setdefault(f, {})
-                                fphrases[f].setdefault(e, {})
-                                fphrases[f][e].setdefault(als,0.0)
-                                fphrases[f][e][als] = fphrases[f][e][als] + count
+                                fcount[f] += count
+                                fphrases[f][e][als] += count
                             for f, elist in fphrases.iteritems():
-                                f_margin = fcount[f]
                                 for e, alslist in elist.iteritems():
                                     alignment = None
                                     count = 0
@@ -1093,11 +1091,9 @@ cdef class HieroCachingRuleFactory:
                                         if currcount > count:
                                             alignment = als
                                             count = currcount 
-                                    scores = []
-                                    for model in models:
-                                        scores.append(model(f, e, count, fcount[f], num_samples))
-                                    yield Rule(self.category, f, e,
-                                            scores=scores, word_alignments=alignment)
+                                    scores = self.scorer.score(f, e, count,
+                                            fcount[f], num_samples)
+                                    yield Rule(self.category, f, e, scores, alignment)
 
                 if len(phrase) < self.max_length and i+spanlen < len(fwords) and pathlen+1 <= self.max_initial_size:
                     for alt_id in range(len(fwords[i+spanlen])):
@@ -1377,9 +1373,9 @@ cdef class HieroCachingRuleFactory:
         free(e_gap_order)
         return result
 
-    cdef create_alignments(self, int* sent_links, int num_links, findexes, eindexes):
+    cdef IntList create_alignments(self, int* sent_links, int num_links, findexes, eindexes):
         cdef unsigned i
-        ret = IntList()
+        cdef IntList ret = IntList()
         for i in range(len(findexes)):
             s = findexes[i]
             if (s<0):