Merge remote-tracking branch 'upstream/master'

2 files changed, 4799 insertions, 4103 deletions

diff --git a/python/cdec/sa/_sa.cpp b/python/cdec/sa/_sa.cpp
index a19c9c64..c59fa22b 100644
--- a/python/cdec/sa/_sa.cpp
+++ b/python/cdec/sa/_sa.cpp
@@ -1,4 +1,4 @@
-/* Generated by Cython 0.19.2 on Mon Feb 24 22:41:13 2014 */
+/* Generated by Cython 0.19.2 on Mon Mar  3 08:00:58 2014 */
 
 #define PY_SSIZE_T_CLEAN
 #ifndef CYTHON_USE_PYLONG_INTERNALS
@@ -639,7 +639,7 @@ struct __pyx_t_4cdec_2sa_3_sa__Trie_Node {
   int arr_len;
 };
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":101
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":104
  * 
  * # linked list structure for storing matches in BaselineRuleFactory
  * cdef struct match_node:             # <<<<<<<<<<<<<<
@@ -651,7 +651,7 @@ struct __pyx_t_4cdec_2sa_3_sa_match_node {
   struct __pyx_t_4cdec_2sa_3_sa_match_node *next;
 };
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":197
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":200
  * 
  * # struct used to encapsulate a single matching
  * cdef struct Matching:             # <<<<<<<<<<<<<<
@@ -710,7 +710,7 @@ struct __pyx_obj_4cdec_2sa_3_sa___pyx_scope_struct_4_make_lattice {
 };
 
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2128
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2144
  * 
  *     # Rule string from rule
  *     def fmt_rule(self, f, e, a):             # <<<<<<<<<<<<<<
@@ -755,7 +755,7 @@ struct __pyx_obj_4cdec_2sa_3_sa___pyx_scope_struct_17_genexpr {
 };
 
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":39
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":40
  *     ])
  * 
  * cdef class OnlineStats:             # <<<<<<<<<<<<<<
@@ -772,6 +772,7 @@ struct __pyx_obj_4cdec_2sa_3_sa_OnlineStats {
   PyObject *bilex_f;
   PyObject *bilex_e;
   PyObject *bilex_fe;
+  PyObject *bilex_ef;
 };
 
 
@@ -809,7 +810,7 @@ struct __pyx_obj_4cdec_2sa_3_sa_Phrase {
 };
 
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":71
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":74
  * cdef int EPSILON = sym_fromstring('*EPS*', True)
  * 
  * cdef class TrieNode:             # <<<<<<<<<<<<<<
@@ -821,14 +822,6 @@ struct __pyx_obj_4cdec_2sa_3_sa_TrieNode {
   PyObject *children;
 };
 
-
-/* "/home/mdenkows/cdec/python/cdec/sa/data_array.pxi":74
- *     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_4cdec_2sa_3_sa___pyx_scope_struct_2_genexpr {
   PyObject_HEAD
   struct __pyx_obj_4cdec_2sa_3_sa___pyx_scope_struct_1_read_bitext *__pyx_outer_scope;
@@ -870,7 +863,7 @@ struct __pyx_obj_4cdec_2sa_3_sa___pyx_scope_struct_29_genexpr {
 };
 
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2147
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2163
  *     # (Used for EGivenFCoherent)
  *     # Return set of (fphrase, lex_i, lex_j)
  *     def get_f_phrases(self, f_words):             # <<<<<<<<<<<<<<
@@ -887,7 +880,7 @@ struct __pyx_obj_4cdec_2sa_3_sa___pyx_scope_struct_26_get_f_phrases {
 };
 
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":77
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":80
  *         self.children = {}
  * 
  * cdef class ExtendedTrieNode(TrieNode):             # <<<<<<<<<<<<<<
@@ -917,7 +910,7 @@ struct __pyx_obj_4cdec_2sa_3_sa_Alignment {
 };
 
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":978
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":981
  *         return sorted(result);
  * 
  *     def input(self, fwords, meta, ctx_name=None):             # <<<<<<<<<<<<<<
@@ -1026,7 +1019,7 @@ struct __pyx_obj_4cdec_2sa_3_sa___pyx_scope_struct_13_decode_words {
 };
 
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2124
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2140
  *         f = Phrase(f_sym)
  *         e = Phrase(e_sym)
  *         a = tuple(self.alignment.link(i, j) for i, j in links)             # <<<<<<<<<<<<<<
@@ -1061,7 +1054,7 @@ struct __pyx_obj_4cdec_2sa_3_sa_Rule {
 };
 
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1193
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1196
  *         if self.online:
  *             stats = self.online_stats[ctx_name]
  *             f_syms = tuple(word[0][0] for word in fwords)             # <<<<<<<<<<<<<<
@@ -1115,7 +1108,7 @@ struct __pyx_obj_4cdec_2sa_3_sa___pyx_scope_struct_27___iter__ {
 };
 
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1891
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1894
  *     # Aggregate stats from a training instance
  *     # (Extract rules, update counts)
  *     def add_instance(self, f_words, e_words, alignment, ctx_name=None):             # <<<<<<<<<<<<<<
@@ -1260,7 +1253,7 @@ struct __pyx_obj_4cdec_2sa_3_sa___pyx_scope_struct_16___str__ {
 };
 
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":88
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":91
  * 
  * 
  * cdef class TrieTable:             # <<<<<<<<<<<<<<
@@ -1288,7 +1281,7 @@ struct __pyx_obj_4cdec_2sa_3_sa___pyx_scope_struct_11_encode_words {
 };
 
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2129
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2145
  *     # Rule string from rule
  *     def fmt_rule(self, f, e, a):
  *         a_str = ' '.join('{0}-{1}'.format(*self.alignment.unlink(packed)) for packed in a)             # <<<<<<<<<<<<<<
@@ -1339,7 +1332,7 @@ struct __pyx_obj_4cdec_2sa_3_sa___pyx_scope_struct_6_genexpr {
 };
 
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2063
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2079
  * 
  *     # Create a rule from source, target, non-terminals, and alignments
  *     def form_rule(self, f_i, e_i, f_span, e_span, nt, al):             # <<<<<<<<<<<<<<
@@ -1398,7 +1391,7 @@ struct __pyx_obj_4cdec_2sa_3_sa___pyx_scope_struct_7_decode_lattice {
 };
 
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":109
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":112
  * # in the suffix array; if discontiguous, it is the set of
  * # actual locations (packed into an array)
  * cdef class PhraseLocation:             # <<<<<<<<<<<<<<
@@ -1431,7 +1424,7 @@ struct __pyx_obj_4cdec_2sa_3_sa_Scorer {
 };
 
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":131
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":134
  * 
  * 
  * cdef class Sampler:             # <<<<<<<<<<<<<<
@@ -1517,7 +1510,7 @@ struct __pyx_obj_4cdec_2sa_3_sa_BitSetIterator {
 };
 
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":253
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":256
  * 
  * 
  * cdef class HieroCachingRuleFactory:             # <<<<<<<<<<<<<<
@@ -1836,7 +1829,7 @@ struct __pyx_vtabstruct_4cdec_2sa_3_sa_FloatList {
 static struct __pyx_vtabstruct_4cdec_2sa_3_sa_FloatList *__pyx_vtabptr_4cdec_2sa_3_sa_FloatList;
 
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":253
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":256
  * 
  * 
  * cdef class HieroCachingRuleFactory:             # <<<<<<<<<<<<<<
@@ -1895,7 +1888,7 @@ struct __pyx_vtabstruct_4cdec_2sa_3_sa_Phrase {
 static struct __pyx_vtabstruct_4cdec_2sa_3_sa_Phrase *__pyx_vtabptr_4cdec_2sa_3_sa_Phrase;
 
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":109
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":112
  * # in the suffix array; if discontiguous, it is the set of
  * # actual locations (packed into an array)
  * cdef class PhraseLocation:             # <<<<<<<<<<<<<<
@@ -2769,6 +2762,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_11SuffixArray_16lookup(struct __pyx_obj
 static PyObject *__pyx_lambda_funcdef_lambda1(CYTHON_UNUSED PyObject *__pyx_self); /* proto */
 static PyObject *__pyx_lambda_funcdef_lambda2(CYTHON_UNUSED PyObject *__pyx_self); /* proto */
 static PyObject *__pyx_lambda_funcdef_lambda3(CYTHON_UNUSED PyObject *__pyx_self); /* proto */
+static PyObject *__pyx_lambda_funcdef_lambda4(CYTHON_UNUSED PyObject *__pyx_self); /* proto */
 static int __pyx_pf_4cdec_2sa_3_sa_11OnlineStats___cinit__(struct __pyx_obj_4cdec_2sa_3_sa_OnlineStats *__pyx_v_self); /* proto */
 static PyObject *__pyx_pf_4cdec_2sa_3_sa_11OnlineStats_9samples_f___get__(struct __pyx_obj_4cdec_2sa_3_sa_OnlineStats *__pyx_v_self); /* proto */
 static int __pyx_pf_4cdec_2sa_3_sa_11OnlineStats_9samples_f_2__set__(struct __pyx_obj_4cdec_2sa_3_sa_OnlineStats *__pyx_v_self, PyObject *__pyx_v_value); /* proto */
@@ -2794,6 +2788,9 @@ static int __pyx_pf_4cdec_2sa_3_sa_11OnlineStats_7bilex_e_4__del__(struct __pyx_
 static PyObject *__pyx_pf_4cdec_2sa_3_sa_11OnlineStats_8bilex_fe___get__(struct __pyx_obj_4cdec_2sa_3_sa_OnlineStats *__pyx_v_self); /* proto */
 static int __pyx_pf_4cdec_2sa_3_sa_11OnlineStats_8bilex_fe_2__set__(struct __pyx_obj_4cdec_2sa_3_sa_OnlineStats *__pyx_v_self, PyObject *__pyx_v_value); /* proto */
 static int __pyx_pf_4cdec_2sa_3_sa_11OnlineStats_8bilex_fe_4__del__(struct __pyx_obj_4cdec_2sa_3_sa_OnlineStats *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_2sa_3_sa_11OnlineStats_8bilex_ef___get__(struct __pyx_obj_4cdec_2sa_3_sa_OnlineStats *__pyx_v_self); /* proto */
+static int __pyx_pf_4cdec_2sa_3_sa_11OnlineStats_8bilex_ef_2__set__(struct __pyx_obj_4cdec_2sa_3_sa_OnlineStats *__pyx_v_self, PyObject *__pyx_v_value); /* proto */
+static int __pyx_pf_4cdec_2sa_3_sa_11OnlineStats_8bilex_ef_4__del__(struct __pyx_obj_4cdec_2sa_3_sa_OnlineStats *__pyx_v_self); /* proto */
 static int __pyx_pf_4cdec_2sa_3_sa_8TrieNode___cinit__(struct __pyx_obj_4cdec_2sa_3_sa_TrieNode *__pyx_v_self); /* proto */
 static PyObject *__pyx_pf_4cdec_2sa_3_sa_8TrieNode_8children___get__(struct __pyx_obj_4cdec_2sa_3_sa_TrieNode *__pyx_v_self); /* proto */
 static int __pyx_pf_4cdec_2sa_3_sa_8TrieNode_8children_2__set__(struct __pyx_obj_4cdec_2sa_3_sa_TrieNode *__pyx_v_self, PyObject *__pyx_v_value); /* proto */
@@ -2830,15 +2827,15 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_14get_all_nod
 static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_16reachable(struct __pyx_obj_4cdec_2sa_3_sa_HieroCachingRuleFactory *__pyx_v_self, PyObject *__pyx_v_fwords, PyObject *__pyx_v_ifrom, PyObject *__pyx_v_dist); /* proto */
 static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_18shortest(struct __pyx_obj_4cdec_2sa_3_sa_HieroCachingRuleFactory *__pyx_v_self, PyObject *__pyx_v_fwords, PyObject *__pyx_v_ifrom, PyObject *__pyx_v_ito); /* proto */
 static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_20get_next_states(struct __pyx_obj_4cdec_2sa_3_sa_HieroCachingRuleFactory *__pyx_v_self, PyObject *__pyx_v__columns, PyObject *__pyx_v_curr_idx, PyObject *__pyx_v_min_dist); /* proto */
+static PyObject *__pyx_lambda_funcdef_lambda6(CYTHON_UNUSED PyObject *__pyx_self); /* proto */
 static PyObject *__pyx_lambda_funcdef_lambda5(CYTHON_UNUSED PyObject *__pyx_self); /* proto */
-static PyObject *__pyx_lambda_funcdef_lambda4(CYTHON_UNUSED PyObject *__pyx_self); /* proto */
-static PyObject *__pyx_lambda_funcdef_lambda6(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_x); /* proto */
+static PyObject *__pyx_lambda_funcdef_lambda7(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_x); /* proto */
 static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5input_2genexpr(PyObject *__pyx_self); /* proto */
 static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_22input(struct __pyx_obj_4cdec_2sa_3_sa_HieroCachingRuleFactory *__pyx_v_self, PyObject *__pyx_v_fwords, PyObject *__pyx_v_meta, PyObject *__pyx_v_ctx_name); /* proto */
 static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instance_extract(PyObject *__pyx_self, PyObject *__pyx_v_f_i, PyObject *__pyx_v_f_j, PyObject *__pyx_v_e_i, PyObject *__pyx_v_e_j, PyObject *__pyx_v_min_bound, PyObject *__pyx_v_wc, PyObject *__pyx_v_links, PyObject *__pyx_v_nt, PyObject *__pyx_v_nt_open); /* proto */
 static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_25add_instance(struct __pyx_obj_4cdec_2sa_3_sa_HieroCachingRuleFactory *__pyx_v_self, PyObject *__pyx_v_f_words, PyObject *__pyx_v_e_words, PyObject *__pyx_v_alignment, PyObject *__pyx_v_ctx_name); /* proto */
-static PyObject *__pyx_lambda_funcdef_lambda7(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_x, PyObject *__pyx_v_y); /* proto */
 static PyObject *__pyx_lambda_funcdef_lambda8(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_x, PyObject *__pyx_v_y); /* proto */
+static PyObject *__pyx_lambda_funcdef_lambda9(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_x, PyObject *__pyx_v_y); /* proto */
 static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_9form_rule_2genexpr(PyObject *__pyx_self); /* proto */
 static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_27form_rule(struct __pyx_obj_4cdec_2sa_3_sa_HieroCachingRuleFactory *__pyx_v_self, PyObject *__pyx_v_f_i, PyObject *__pyx_v_e_i, PyObject *__pyx_v_f_span, PyObject *__pyx_v_e_span, PyObject *__pyx_v_nt, PyObject *__pyx_v_al); /* proto */
 static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_8fmt_rule_genexpr(PyObject *__pyx_self); /* proto */
@@ -2999,7 +2996,7 @@ static char __pyx_k_120[] = "{";
 static char __pyx_k_122[] = "}";
 static char __pyx_k_123[] = "get_precomputed_collocation";
 static char __pyx_k_124[] = "double binary";
-static char __pyx_k_125[] = "HieroCachingRuleFactory.input.<locals>.lambda4.<locals>.<lambda>";
+static char __pyx_k_125[] = "HieroCachingRuleFactory.input.<locals>.lambda5.<locals>.<lambda>";
 static char __pyx_k_126[] = "Keyword trie error";
 static char __pyx_k_128[] = "HieroCachingRuleFactory.input.<locals>.<lambda>";
 static char __pyx_k_129[] = "get_all_nodes_isteps_away";
@@ -3158,6 +3155,7 @@ 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";
+static char __pyx_k__bilex_ef[] = "bilex_ef";
 static char __pyx_k__bilex_fe[] = "bilex_fe";
 static char __pyx_k__category[] = "category";
 static char __pyx_k__children[] = "children";
@@ -3412,6 +3410,7 @@ static PyObject *__pyx_n_s__arr;
 static PyObject *__pyx_n_s__arr_high;
 static PyObject *__pyx_n_s__arr_low;
 static PyObject *__pyx_n_s__bilex_e;
+static PyObject *__pyx_n_s__bilex_ef;
 static PyObject *__pyx_n_s__bilex_f;
 static PyObject *__pyx_n_s__bilex_fe;
 static PyObject *__pyx_n_s__by_slack_factor;
@@ -37283,7 +37282,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_11OnlineStats_9__cinit___lambda1(PyObje
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":56
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":58
  *         self.phrases_f = defaultdict(int)
  *         self.phrases_e = defaultdict(int)
  *         self.phrases_fe = defaultdict(lambda: defaultdict(int))             # <<<<<<<<<<<<<<
@@ -37302,14 +37301,14 @@ static PyObject *__pyx_lambda_funcdef_lambda1(CYTHON_UNUSED PyObject *__pyx_self
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("lambda1", 0);
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s__defaultdict); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 56; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s__defaultdict); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 58; __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 = 56; __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 = 58; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_INCREF(((PyObject *)((PyObject*)(&PyInt_Type))));
   PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)((PyObject*)(&PyInt_Type))));
   __Pyx_GIVEREF(((PyObject *)((PyObject*)(&PyInt_Type))));
-  __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 = 56; __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 = 58; __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;
@@ -37343,7 +37342,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_11OnlineStats_9__cinit___1lambda2(PyObj
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":57
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":59
  *         self.phrases_e = defaultdict(int)
  *         self.phrases_fe = defaultdict(lambda: defaultdict(int))
  *         self.phrases_al = defaultdict(lambda: defaultdict(tuple))             # <<<<<<<<<<<<<<
@@ -37362,14 +37361,14 @@ static PyObject *__pyx_lambda_funcdef_lambda2(CYTHON_UNUSED PyObject *__pyx_self
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("lambda2", 0);
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s__defaultdict); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 57; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s__defaultdict); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 59; __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 = 57; __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 = 59; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_INCREF(((PyObject *)((PyObject*)(&PyTuple_Type))));
   PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)((PyObject*)(&PyTuple_Type))));
   __Pyx_GIVEREF(((PyObject *)((PyObject*)(&PyTuple_Type))));
-  __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 = 57; __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 = 59; __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;
@@ -37403,12 +37402,12 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_11OnlineStats_9__cinit___2lambda3(PyObj
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":62
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":64
  *         self.bilex_f = defaultdict(int)
  *         self.bilex_e = defaultdict(int)
  *         self.bilex_fe = defaultdict(lambda: defaultdict(int))             # <<<<<<<<<<<<<<
+ *         self.bilex_ef = defaultdict(lambda: defaultdict(int))
  * 
- * cdef int PRECOMPUTE = 0
  */
 
 static PyObject *__pyx_lambda_funcdef_lambda3(CYTHON_UNUSED PyObject *__pyx_self) {
@@ -37422,14 +37421,14 @@ static PyObject *__pyx_lambda_funcdef_lambda3(CYTHON_UNUSED PyObject *__pyx_self
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("lambda3", 0);
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s__defaultdict); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 62; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s__defaultdict); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 64; __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 = 62; __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 = 64; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_INCREF(((PyObject *)((PyObject*)(&PyInt_Type))));
   PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)((PyObject*)(&PyInt_Type))));
   __Pyx_GIVEREF(((PyObject *)((PyObject*)(&PyInt_Type))));
-  __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 = 62; __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 = 64; __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;
@@ -37451,8 +37450,68 @@ static PyObject *__pyx_lambda_funcdef_lambda3(CYTHON_UNUSED PyObject *__pyx_self
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":49
- *     cdef public bilex_fe
+/* Python wrapper */
+static PyObject *__pyx_pw_4cdec_2sa_3_sa_11OnlineStats_9__cinit___3lambda4(PyObject *__pyx_self, CYTHON_UNUSED PyObject *unused); /*proto*/
+static PyMethodDef __pyx_mdef_4cdec_2sa_3_sa_11OnlineStats_9__cinit___3lambda4 = {__Pyx_NAMESTR("lambda4"), (PyCFunction)__pyx_pw_4cdec_2sa_3_sa_11OnlineStats_9__cinit___3lambda4, METH_NOARGS, __Pyx_DOCSTR(0)};
+static PyObject *__pyx_pw_4cdec_2sa_3_sa_11OnlineStats_9__cinit___3lambda4(PyObject *__pyx_self, CYTHON_UNUSED PyObject *unused) {
+  PyObject *__pyx_r = 0;
+  __Pyx_RefNannyDeclarations
+  __Pyx_RefNannySetupContext("lambda4 (wrapper)", 0);
+  __pyx_r = __pyx_lambda_funcdef_lambda4(__pyx_self);
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":65
+ *         self.bilex_e = defaultdict(int)
+ *         self.bilex_fe = defaultdict(lambda: defaultdict(int))
+ *         self.bilex_ef = defaultdict(lambda: defaultdict(int))             # <<<<<<<<<<<<<<
+ * 
+ * cdef int PRECOMPUTE = 0
+ */
+
+static PyObject *__pyx_lambda_funcdef_lambda4(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("lambda4", 0);
+  __Pyx_XDECREF(__pyx_r);
+  __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s__defaultdict); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 65; __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 = 65; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __Pyx_INCREF(((PyObject *)((PyObject*)(&PyInt_Type))));
+  PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)((PyObject*)(&PyInt_Type))));
+  __Pyx_GIVEREF(((PyObject *)((PyObject*)(&PyInt_Type))));
+  __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 = 65; __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;
+  __pyx_r = __pyx_t_3;
+  __pyx_t_3 = 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("cdec.sa._sa.OnlineStats.__cinit__.lambda4", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __pyx_r = NULL;
+  __pyx_L0:;
+  __Pyx_XGIVEREF(__pyx_r);
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":51
+ *     cdef public bilex_ef
  * 
  *     def __cinit__(self):             # <<<<<<<<<<<<<<
  *         # Keep track of everything that can be sampled:
@@ -37470,21 +37529,21 @@ static int __pyx_pf_4cdec_2sa_3_sa_11OnlineStats___cinit__(struct __pyx_obj_4cde
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__cinit__", 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":51
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":53
  *     def __cinit__(self):
  *         # Keep track of everything that can be sampled:
  *         self.samples_f = defaultdict(int)             # <<<<<<<<<<<<<<
  * 
  *         # Phrase counts
  */
-  __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s__defaultdict); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 51; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s__defaultdict); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 53; __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 = 51; __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 = 53; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_INCREF(((PyObject *)((PyObject*)(&PyInt_Type))));
   PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)((PyObject*)(&PyInt_Type))));
   __Pyx_GIVEREF(((PyObject *)((PyObject*)(&PyInt_Type))));
-  __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 = 51; __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 = 53; __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;
@@ -37494,21 +37553,21 @@ static int __pyx_pf_4cdec_2sa_3_sa_11OnlineStats___cinit__(struct __pyx_obj_4cde
   __pyx_v_self->samples_f = __pyx_t_3;
   __pyx_t_3 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":54
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":56
  * 
  *         # Phrase counts
  *         self.phrases_f = defaultdict(int)             # <<<<<<<<<<<<<<
  *         self.phrases_e = defaultdict(int)
  *         self.phrases_fe = defaultdict(lambda: defaultdict(int))
  */
-  __pyx_t_3 = __Pyx_GetModuleGlobalName(__pyx_n_s__defaultdict); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 54; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = __Pyx_GetModuleGlobalName(__pyx_n_s__defaultdict); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 56; __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 = 54; __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 = 56; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_INCREF(((PyObject *)((PyObject*)(&PyInt_Type))));
   PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)((PyObject*)(&PyInt_Type))));
   __Pyx_GIVEREF(((PyObject *)((PyObject*)(&PyInt_Type))));
-  __pyx_t_1 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 54; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 56; __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_2)); __pyx_t_2 = 0;
@@ -37518,21 +37577,21 @@ static int __pyx_pf_4cdec_2sa_3_sa_11OnlineStats___cinit__(struct __pyx_obj_4cde
   __pyx_v_self->phrases_f = __pyx_t_1;
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":55
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":57
  *         # Phrase counts
  *         self.phrases_f = defaultdict(int)
  *         self.phrases_e = defaultdict(int)             # <<<<<<<<<<<<<<
  *         self.phrases_fe = defaultdict(lambda: defaultdict(int))
  *         self.phrases_al = defaultdict(lambda: defaultdict(tuple))
  */
-  __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s__defaultdict); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 55; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s__defaultdict); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 57; __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 = 55; __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 = 57; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_INCREF(((PyObject *)((PyObject*)(&PyInt_Type))));
   PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)((PyObject*)(&PyInt_Type))));
   __Pyx_GIVEREF(((PyObject *)((PyObject*)(&PyInt_Type))));
-  __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 = 55; __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 = 57; __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;
@@ -37542,23 +37601,23 @@ static int __pyx_pf_4cdec_2sa_3_sa_11OnlineStats___cinit__(struct __pyx_obj_4cde
   __pyx_v_self->phrases_e = __pyx_t_3;
   __pyx_t_3 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":56
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":58
  *         self.phrases_f = defaultdict(int)
  *         self.phrases_e = defaultdict(int)
  *         self.phrases_fe = defaultdict(lambda: defaultdict(int))             # <<<<<<<<<<<<<<
  *         self.phrases_al = defaultdict(lambda: defaultdict(tuple))
  * 
  */
-  __pyx_t_3 = __Pyx_GetModuleGlobalName(__pyx_n_s__defaultdict); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 56; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = __Pyx_GetModuleGlobalName(__pyx_n_s__defaultdict); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 58; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
-  __pyx_t_2 = __Pyx_CyFunction_NewEx(&__pyx_mdef_4cdec_2sa_3_sa_11OnlineStats_9__cinit___lambda1, 0, __pyx_n_s_101, NULL, __pyx_n_s_102, NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 56; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = __Pyx_CyFunction_NewEx(&__pyx_mdef_4cdec_2sa_3_sa_11OnlineStats_9__cinit___lambda1, 0, __pyx_n_s_101, NULL, __pyx_n_s_102, NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 58; __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 = 56; __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 = 58; __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);
   __pyx_t_2 = 0;
-  __pyx_t_2 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 56; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 58; __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_1)); __pyx_t_1 = 0;
@@ -37568,23 +37627,23 @@ static int __pyx_pf_4cdec_2sa_3_sa_11OnlineStats___cinit__(struct __pyx_obj_4cde
   __pyx_v_self->phrases_fe = __pyx_t_2;
   __pyx_t_2 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":57
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":59
  *         self.phrases_e = defaultdict(int)
  *         self.phrases_fe = defaultdict(lambda: defaultdict(int))
  *         self.phrases_al = defaultdict(lambda: defaultdict(tuple))             # <<<<<<<<<<<<<<
  * 
  *         # Bilexical counts
  */
-  __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s__defaultdict); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 57; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s__defaultdict); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 59; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_1 = __Pyx_CyFunction_NewEx(&__pyx_mdef_4cdec_2sa_3_sa_11OnlineStats_9__cinit___1lambda2, 0, __pyx_n_s_101, NULL, __pyx_n_s_102, NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 57; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_CyFunction_NewEx(&__pyx_mdef_4cdec_2sa_3_sa_11OnlineStats_9__cinit___1lambda2, 0, __pyx_n_s_101, NULL, __pyx_n_s_102, NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 59; __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[8]; __pyx_lineno = 57; __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 = 59; __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_2, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 57; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __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 = 59; __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;
@@ -37594,21 +37653,21 @@ static int __pyx_pf_4cdec_2sa_3_sa_11OnlineStats___cinit__(struct __pyx_obj_4cde
   __pyx_v_self->phrases_al = __pyx_t_1;
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":60
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":62
  * 
  *         # Bilexical counts
  *         self.bilex_f = defaultdict(int)             # <<<<<<<<<<<<<<
  *         self.bilex_e = defaultdict(int)
  *         self.bilex_fe = defaultdict(lambda: defaultdict(int))
  */
-  __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s__defaultdict); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 60; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s__defaultdict); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 62; __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[8]; __pyx_lineno = 60; __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 = 62; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_INCREF(((PyObject *)((PyObject*)(&PyInt_Type))));
   PyTuple_SET_ITEM(__pyx_t_3, 0, ((PyObject *)((PyObject*)(&PyInt_Type))));
   __Pyx_GIVEREF(((PyObject *)((PyObject*)(&PyInt_Type))));
-  __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 = 60; __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[8]; __pyx_lineno = 62; __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;
@@ -37618,21 +37677,21 @@ static int __pyx_pf_4cdec_2sa_3_sa_11OnlineStats___cinit__(struct __pyx_obj_4cde
   __pyx_v_self->bilex_f = __pyx_t_2;
   __pyx_t_2 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":61
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":63
  *         # Bilexical counts
  *         self.bilex_f = defaultdict(int)
  *         self.bilex_e = defaultdict(int)             # <<<<<<<<<<<<<<
  *         self.bilex_fe = defaultdict(lambda: defaultdict(int))
- * 
+ *         self.bilex_ef = defaultdict(lambda: defaultdict(int))
  */
-  __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s__defaultdict); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 61; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s__defaultdict); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 63; __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 = 61; __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 = 63; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_INCREF(((PyObject *)((PyObject*)(&PyInt_Type))));
   PyTuple_SET_ITEM(__pyx_t_3, 0, ((PyObject *)((PyObject*)(&PyInt_Type))));
   __Pyx_GIVEREF(((PyObject *)((PyObject*)(&PyInt_Type))));
-  __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 = 61; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __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 = 63; __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;
@@ -37642,23 +37701,23 @@ static int __pyx_pf_4cdec_2sa_3_sa_11OnlineStats___cinit__(struct __pyx_obj_4cde
   __pyx_v_self->bilex_e = __pyx_t_1;
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":62
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":64
  *         self.bilex_f = defaultdict(int)
  *         self.bilex_e = defaultdict(int)
  *         self.bilex_fe = defaultdict(lambda: defaultdict(int))             # <<<<<<<<<<<<<<
+ *         self.bilex_ef = defaultdict(lambda: defaultdict(int))
  * 
- * cdef int PRECOMPUTE = 0
  */
-  __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s__defaultdict); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 62; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s__defaultdict); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 64; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_3 = __Pyx_CyFunction_NewEx(&__pyx_mdef_4cdec_2sa_3_sa_11OnlineStats_9__cinit___2lambda3, 0, __pyx_n_s_101, NULL, __pyx_n_s_102, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 62; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = __Pyx_CyFunction_NewEx(&__pyx_mdef_4cdec_2sa_3_sa_11OnlineStats_9__cinit___2lambda3, 0, __pyx_n_s_101, NULL, __pyx_n_s_102, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 64; __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 = 62; __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 = 64; __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(__pyx_t_1, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 62; __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 = 64; __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;
@@ -37668,6 +37727,32 @@ static int __pyx_pf_4cdec_2sa_3_sa_11OnlineStats___cinit__(struct __pyx_obj_4cde
   __pyx_v_self->bilex_fe = __pyx_t_3;
   __pyx_t_3 = 0;
 
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":65
+ *         self.bilex_e = defaultdict(int)
+ *         self.bilex_fe = defaultdict(lambda: defaultdict(int))
+ *         self.bilex_ef = defaultdict(lambda: defaultdict(int))             # <<<<<<<<<<<<<<
+ * 
+ * cdef int PRECOMPUTE = 0
+ */
+  __pyx_t_3 = __Pyx_GetModuleGlobalName(__pyx_n_s__defaultdict); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 65; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __pyx_t_2 = __Pyx_CyFunction_NewEx(&__pyx_mdef_4cdec_2sa_3_sa_11OnlineStats_9__cinit___3lambda4, 0, __pyx_n_s_101, NULL, __pyx_n_s_102, NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 65; __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 = 65; __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);
+  __pyx_t_2 = 0;
+  __pyx_t_2 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 65; __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_1)); __pyx_t_1 = 0;
+  __Pyx_GIVEREF(__pyx_t_2);
+  __Pyx_GOTREF(__pyx_v_self->bilex_ef);
+  __Pyx_DECREF(__pyx_v_self->bilex_ef);
+  __pyx_v_self->bilex_ef = __pyx_t_2;
+  __pyx_t_2 = 0;
+
   __pyx_r = 0;
   goto __pyx_L0;
   __pyx_L1_error:;
@@ -37692,7 +37777,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_11OnlineStats_9samples_f_1__get__(PyObj
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":40
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":41
  * 
  * cdef class OnlineStats:
  *     cdef public samples_f             # <<<<<<<<<<<<<<
@@ -37779,7 +37864,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_11OnlineStats_9phrases_f_1__get__(PyObj
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":41
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":42
  * cdef class OnlineStats:
  *     cdef public samples_f
  *     cdef public phrases_f             # <<<<<<<<<<<<<<
@@ -37866,7 +37951,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_11OnlineStats_9phrases_e_1__get__(PyObj
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":42
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":43
  *     cdef public samples_f
  *     cdef public phrases_f
  *     cdef public phrases_e             # <<<<<<<<<<<<<<
@@ -37953,7 +38038,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_11OnlineStats_10phrases_fe_1__get__(PyO
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":43
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":44
  *     cdef public phrases_f
  *     cdef public phrases_e
  *     cdef public phrases_fe             # <<<<<<<<<<<<<<
@@ -38040,7 +38125,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_11OnlineStats_10phrases_al_1__get__(PyO
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":44
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":45
  *     cdef public phrases_e
  *     cdef public phrases_fe
  *     cdef public phrases_al             # <<<<<<<<<<<<<<
@@ -38127,7 +38212,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_11OnlineStats_7bilex_f_1__get__(PyObjec
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":45
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":46
  *     cdef public phrases_fe
  *     cdef public phrases_al
  *     cdef public bilex_f             # <<<<<<<<<<<<<<
@@ -38214,12 +38299,12 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_11OnlineStats_7bilex_e_1__get__(PyObjec
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":46
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":47
  *     cdef public phrases_al
  *     cdef public bilex_f
  *     cdef public bilex_e             # <<<<<<<<<<<<<<
  *     cdef public bilex_fe
- * 
+ *     cdef public bilex_ef
  */
 
 static PyObject *__pyx_pf_4cdec_2sa_3_sa_11OnlineStats_7bilex_e___get__(struct __pyx_obj_4cdec_2sa_3_sa_OnlineStats *__pyx_v_self) {
@@ -38301,12 +38386,12 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_11OnlineStats_8bilex_fe_1__get__(PyObje
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":47
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":48
  *     cdef public bilex_f
  *     cdef public bilex_e
  *     cdef public bilex_fe             # <<<<<<<<<<<<<<
+ *     cdef public bilex_ef
  * 
- *     def __cinit__(self):
  */
 
 static PyObject *__pyx_pf_4cdec_2sa_3_sa_11OnlineStats_8bilex_fe___get__(struct __pyx_obj_4cdec_2sa_3_sa_OnlineStats *__pyx_v_self) {
@@ -38378,6 +38463,93 @@ static int __pyx_pf_4cdec_2sa_3_sa_11OnlineStats_8bilex_fe_4__del__(struct __pyx
 }
 
 /* Python wrapper */
+static PyObject *__pyx_pw_4cdec_2sa_3_sa_11OnlineStats_8bilex_ef_1__get__(PyObject *__pyx_v_self); /*proto*/
+static PyObject *__pyx_pw_4cdec_2sa_3_sa_11OnlineStats_8bilex_ef_1__get__(PyObject *__pyx_v_self) {
+  PyObject *__pyx_r = 0;
+  __Pyx_RefNannyDeclarations
+  __Pyx_RefNannySetupContext("__get__ (wrapper)", 0);
+  __pyx_r = __pyx_pf_4cdec_2sa_3_sa_11OnlineStats_8bilex_ef___get__(((struct __pyx_obj_4cdec_2sa_3_sa_OnlineStats *)__pyx_v_self));
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":49
+ *     cdef public bilex_e
+ *     cdef public bilex_fe
+ *     cdef public bilex_ef             # <<<<<<<<<<<<<<
+ * 
+ *     def __cinit__(self):
+ */
+
+static PyObject *__pyx_pf_4cdec_2sa_3_sa_11OnlineStats_8bilex_ef___get__(struct __pyx_obj_4cdec_2sa_3_sa_OnlineStats *__pyx_v_self) {
+  PyObject *__pyx_r = NULL;
+  __Pyx_RefNannyDeclarations
+  __Pyx_RefNannySetupContext("__get__", 0);
+  __Pyx_XDECREF(__pyx_r);
+  __Pyx_INCREF(__pyx_v_self->bilex_ef);
+  __pyx_r = __pyx_v_self->bilex_ef;
+  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_4cdec_2sa_3_sa_11OnlineStats_8bilex_ef_3__set__(PyObject *__pyx_v_self, PyObject *__pyx_v_value); /*proto*/
+static int __pyx_pw_4cdec_2sa_3_sa_11OnlineStats_8bilex_ef_3__set__(PyObject *__pyx_v_self, PyObject *__pyx_v_value) {
+  int __pyx_r;
+  __Pyx_RefNannyDeclarations
+  __Pyx_RefNannySetupContext("__set__ (wrapper)", 0);
+  __pyx_r = __pyx_pf_4cdec_2sa_3_sa_11OnlineStats_8bilex_ef_2__set__(((struct __pyx_obj_4cdec_2sa_3_sa_OnlineStats *)__pyx_v_self), ((PyObject *)__pyx_v_value));
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+
+static int __pyx_pf_4cdec_2sa_3_sa_11OnlineStats_8bilex_ef_2__set__(struct __pyx_obj_4cdec_2sa_3_sa_OnlineStats *__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->bilex_ef);
+  __Pyx_DECREF(__pyx_v_self->bilex_ef);
+  __pyx_v_self->bilex_ef = __pyx_v_value;
+
+  __pyx_r = 0;
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+
+/* Python wrapper */
+static int __pyx_pw_4cdec_2sa_3_sa_11OnlineStats_8bilex_ef_5__del__(PyObject *__pyx_v_self); /*proto*/
+static int __pyx_pw_4cdec_2sa_3_sa_11OnlineStats_8bilex_ef_5__del__(PyObject *__pyx_v_self) {
+  int __pyx_r;
+  __Pyx_RefNannyDeclarations
+  __Pyx_RefNannySetupContext("__del__ (wrapper)", 0);
+  __pyx_r = __pyx_pf_4cdec_2sa_3_sa_11OnlineStats_8bilex_ef_4__del__(((struct __pyx_obj_4cdec_2sa_3_sa_OnlineStats *)__pyx_v_self));
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+
+static int __pyx_pf_4cdec_2sa_3_sa_11OnlineStats_8bilex_ef_4__del__(struct __pyx_obj_4cdec_2sa_3_sa_OnlineStats *__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->bilex_ef);
+  __Pyx_DECREF(__pyx_v_self->bilex_ef);
+  __pyx_v_self->bilex_ef = Py_None;
+
+  __pyx_r = 0;
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+
+/* Python wrapper */
 static int __pyx_pw_4cdec_2sa_3_sa_8TrieNode_1__cinit__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
 static int __pyx_pw_4cdec_2sa_3_sa_8TrieNode_1__cinit__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   int __pyx_r;
@@ -38391,7 +38563,7 @@ static int __pyx_pw_4cdec_2sa_3_sa_8TrieNode_1__cinit__(PyObject *__pyx_v_self,
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":74
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":77
  *     cdef public children
  * 
  *     def __cinit__(self):             # <<<<<<<<<<<<<<
@@ -38408,14 +38580,14 @@ static int __pyx_pf_4cdec_2sa_3_sa_8TrieNode___cinit__(struct __pyx_obj_4cdec_2s
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__cinit__", 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":75
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":78
  * 
  *     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 = 75; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 78; __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);
@@ -38445,7 +38617,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_8TrieNode_8children_1__get__(PyObject *
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":72
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":75
  * 
  * cdef class TrieNode:
  *     cdef public children             # <<<<<<<<<<<<<<
@@ -38537,7 +38709,7 @@ static int __pyx_pw_4cdec_2sa_3_sa_16ExtendedTrieNode_1__cinit__(PyObject *__pyx
     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};
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":82
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":85
  *     cdef public suffix_link
  * 
  *     def __cinit__(self, phrase=None, phrase_location=None, suffix_link=None):             # <<<<<<<<<<<<<<
@@ -38576,7 +38748,7 @@ static int __pyx_pw_4cdec_2sa_3_sa_16ExtendedTrieNode_1__cinit__(PyObject *__pyx
         }
       }
       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 = 82; __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 = 85; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else {
       switch (PyTuple_GET_SIZE(__pyx_args)) {
@@ -38593,7 +38765,7 @@ static int __pyx_pw_4cdec_2sa_3_sa_16ExtendedTrieNode_1__cinit__(PyObject *__pyx
   }
   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 = 82; __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 = 85; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_AddTraceback("cdec.sa._sa.ExtendedTrieNode.__cinit__", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -38609,7 +38781,7 @@ static int __pyx_pf_4cdec_2sa_3_sa_16ExtendedTrieNode___cinit__(struct __pyx_obj
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__cinit__", 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":83
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":86
  * 
  *     def __cinit__(self, phrase=None, phrase_location=None, suffix_link=None):
  *         self.phrase = phrase             # <<<<<<<<<<<<<<
@@ -38622,7 +38794,7 @@ static int __pyx_pf_4cdec_2sa_3_sa_16ExtendedTrieNode___cinit__(struct __pyx_obj
   __Pyx_DECREF(__pyx_v_self->phrase);
   __pyx_v_self->phrase = __pyx_v_phrase;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":84
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":87
  *     def __cinit__(self, phrase=None, phrase_location=None, suffix_link=None):
  *         self.phrase = phrase
  *         self.phrase_location = phrase_location             # <<<<<<<<<<<<<<
@@ -38635,7 +38807,7 @@ static int __pyx_pf_4cdec_2sa_3_sa_16ExtendedTrieNode___cinit__(struct __pyx_obj
   __Pyx_DECREF(__pyx_v_self->phrase_location);
   __pyx_v_self->phrase_location = __pyx_v_phrase_location;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":85
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":88
  *         self.phrase = phrase
  *         self.phrase_location = phrase_location
  *         self.suffix_link = suffix_link             # <<<<<<<<<<<<<<
@@ -38664,7 +38836,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_16ExtendedTrieNode_6phrase_1__get__(PyO
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":78
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":81
  * 
  * cdef class ExtendedTrieNode(TrieNode):
  *     cdef public phrase             # <<<<<<<<<<<<<<
@@ -38751,7 +38923,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_16ExtendedTrieNode_15phrase_location_1_
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":79
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":82
  * cdef class ExtendedTrieNode(TrieNode):
  *     cdef public phrase
  *     cdef public phrase_location             # <<<<<<<<<<<<<<
@@ -38838,7 +39010,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_16ExtendedTrieNode_11suffix_link_1__get
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":80
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":83
  *     cdef public phrase
  *     cdef public phrase_location
  *     cdef public suffix_link             # <<<<<<<<<<<<<<
@@ -38945,7 +39117,7 @@ static int __pyx_pw_4cdec_2sa_3_sa_9TrieTable_1__cinit__(PyObject *__pyx_v_self,
         }
       }
       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 = 92; __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 = 95; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else {
       switch (PyTuple_GET_SIZE(__pyx_args)) {
@@ -38958,7 +39130,7 @@ static int __pyx_pw_4cdec_2sa_3_sa_9TrieTable_1__cinit__(PyObject *__pyx_v_self,
   }
   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 = 92; __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 = 95; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_AddTraceback("cdec.sa._sa.TrieTable.__cinit__", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -38969,7 +39141,7 @@ static int __pyx_pw_4cdec_2sa_3_sa_9TrieTable_1__cinit__(PyObject *__pyx_v_self,
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":92
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":95
  *     cdef public int count
  *     cdef public root
  *     def __cinit__(self, extended=False):             # <<<<<<<<<<<<<<
@@ -38988,7 +39160,7 @@ static int __pyx_pf_4cdec_2sa_3_sa_9TrieTable___cinit__(struct __pyx_obj_4cdec_2
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__cinit__", 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":93
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":96
  *     cdef public root
  *     def __cinit__(self, extended=False):
  *         self.count = 0             # <<<<<<<<<<<<<<
@@ -38997,34 +39169,34 @@ static int __pyx_pf_4cdec_2sa_3_sa_9TrieTable___cinit__(struct __pyx_obj_4cdec_2
  */
   __pyx_v_self->count = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":94
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":97
  *     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 = 94; __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 = 97; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_v_self->extended = __pyx_t_1;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":95
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":98
  *         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 = 95; __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 = 98; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   if (__pyx_t_2) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":96
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":99
  *         self.extended = extended
  *         if extended:
  *             self.root = ExtendedTrieNode()             # <<<<<<<<<<<<<<
  *         else:
  *             self.root = TrieNode()
  */
-    __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_ExtendedTrieNode)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 96; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_ExtendedTrieNode)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 99; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_GIVEREF(__pyx_t_3);
     __Pyx_GOTREF(__pyx_v_self->root);
@@ -39035,14 +39207,14 @@ static int __pyx_pf_4cdec_2sa_3_sa_9TrieTable___cinit__(struct __pyx_obj_4cdec_2
   }
   /*else*/ {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":98
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":101
  *             self.root = ExtendedTrieNode()
  *         else:
  *             self.root = TrieNode()             # <<<<<<<<<<<<<<
  * 
  * # linked list structure for storing matches in BaselineRuleFactory
  */
-    __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_TrieNode)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 98; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_TrieNode)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 101; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_GIVEREF(__pyx_t_3);
     __Pyx_GOTREF(__pyx_v_self->root);
@@ -39074,7 +39246,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_9TrieTable_8extended_1__get__(PyObject
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":89
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":92
  * 
  * cdef class TrieTable:
  *     cdef public int extended             # <<<<<<<<<<<<<<
@@ -39091,7 +39263,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_9TrieTable_8extended___get__(struct __p
   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 = 89; __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 = 92; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_r = __pyx_t_1;
   __pyx_t_1 = 0;
@@ -39128,7 +39300,7 @@ static int __pyx_pf_4cdec_2sa_3_sa_9TrieTable_8extended_2__set__(struct __pyx_ob
   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 = 89; __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 = 92; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_v_self->extended = __pyx_t_1;
 
   __pyx_r = 0;
@@ -39152,7 +39324,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_9TrieTable_5count_1__get__(PyObject *__
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":90
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":93
  * cdef class TrieTable:
  *     cdef public int extended
  *     cdef public int count             # <<<<<<<<<<<<<<
@@ -39169,7 +39341,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_9TrieTable_5count___get__(struct __pyx_
   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 = 90; __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 = 93; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_r = __pyx_t_1;
   __pyx_t_1 = 0;
@@ -39206,7 +39378,7 @@ static int __pyx_pf_4cdec_2sa_3_sa_9TrieTable_5count_2__set__(struct __pyx_obj_4
   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 = 90; __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 = 93; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_v_self->count = __pyx_t_1;
 
   __pyx_r = 0;
@@ -39230,7 +39402,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_9TrieTable_4root_1__get__(PyObject *__p
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":91
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":94
  *     cdef public int extended
  *     cdef public int count
  *     cdef public root             # <<<<<<<<<<<<<<
@@ -39306,7 +39478,7 @@ static int __pyx_pf_4cdec_2sa_3_sa_9TrieTable_4root_4__del__(struct __pyx_obj_4c
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":118
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":121
  * 
  *     # returns true if sent_id is contained
  *     cdef int contains(self, int sent_id):             # <<<<<<<<<<<<<<
@@ -39319,7 +39491,7 @@ static int __pyx_f_4cdec_2sa_3_sa_14PhraseLocation_contains(CYTHON_UNUSED struct
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("contains", 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":119
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":122
  *     # returns true if sent_id is contained
  *     cdef int contains(self, int sent_id):
  *         return 1             # <<<<<<<<<<<<<<
@@ -39354,7 +39526,7 @@ static int __pyx_pw_4cdec_2sa_3_sa_14PhraseLocation_1__cinit__(PyObject *__pyx_v
     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};
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":122
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":125
  * 
  *     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):             # <<<<<<<<<<<<<<
@@ -39409,7 +39581,7 @@ static int __pyx_pw_4cdec_2sa_3_sa_14PhraseLocation_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 = 121; __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 = 124; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else {
       switch (PyTuple_GET_SIZE(__pyx_args)) {
@@ -39424,35 +39596,35 @@ static int __pyx_pw_4cdec_2sa_3_sa_14PhraseLocation_1__cinit__(PyObject *__pyx_v
       }
     }
     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 = 121; __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 = 124; __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 = 121; __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 = 124; __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 = 121; __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 = 124; __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 = 121; __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 = 124; __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 = 122; __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 = 125; __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 = 121; __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 = 124; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_AddTraceback("cdec.sa._sa.PhraseLocation.__cinit__", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -39463,7 +39635,7 @@ static int __pyx_pw_4cdec_2sa_3_sa_14PhraseLocation_1__cinit__(PyObject *__pyx_v
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":121
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":124
  *         return 1
  * 
  *     def __cinit__(self, int sa_low=-1, int sa_high=-1, int arr_low=-1, int arr_high=-1,             # <<<<<<<<<<<<<<
@@ -39479,7 +39651,7 @@ static int __pyx_pf_4cdec_2sa_3_sa_14PhraseLocation___cinit__(struct __pyx_obj_4
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__cinit__", 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":123
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":126
  *     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             # <<<<<<<<<<<<<<
@@ -39488,7 +39660,7 @@ static int __pyx_pf_4cdec_2sa_3_sa_14PhraseLocation___cinit__(struct __pyx_obj_4
  */
   __pyx_v_self->sa_low = __pyx_v_sa_low;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":124
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":127
  *             arr=None, int num_subpatterns=1):
  *         self.sa_low = sa_low
  *         self.sa_high = sa_high             # <<<<<<<<<<<<<<
@@ -39497,7 +39669,7 @@ static int __pyx_pf_4cdec_2sa_3_sa_14PhraseLocation___cinit__(struct __pyx_obj_4
  */
   __pyx_v_self->sa_high = __pyx_v_sa_high;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":125
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":128
  *         self.sa_low = sa_low
  *         self.sa_high = sa_high
  *         self.arr_low = arr_low             # <<<<<<<<<<<<<<
@@ -39506,7 +39678,7 @@ static int __pyx_pf_4cdec_2sa_3_sa_14PhraseLocation___cinit__(struct __pyx_obj_4
  */
   __pyx_v_self->arr_low = __pyx_v_arr_low;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":126
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":129
  *         self.sa_high = sa_high
  *         self.arr_low = arr_low
  *         self.arr_high = arr_high             # <<<<<<<<<<<<<<
@@ -39515,21 +39687,21 @@ static int __pyx_pf_4cdec_2sa_3_sa_14PhraseLocation___cinit__(struct __pyx_obj_4
  */
   __pyx_v_self->arr_high = __pyx_v_arr_high;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":127
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":130
  *         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_4cdec_2sa_3_sa_IntList))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 127; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (!(likely(((__pyx_v_arr) == Py_None) || likely(__Pyx_TypeTest(__pyx_v_arr, __pyx_ptype_4cdec_2sa_3_sa_IntList))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 130; __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_4cdec_2sa_3_sa_IntList *)__pyx_v_arr);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":128
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":131
  *         self.arr_high = arr_high
  *         self.arr = arr
  *         self.num_subpatterns = num_subpatterns             # <<<<<<<<<<<<<<
@@ -39579,11 +39751,11 @@ static int __pyx_pw_4cdec_2sa_3_sa_7Sampler_1__cinit__(PyObject *__pyx_v_self, P
         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 = 138; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("__cinit__", 1, 2, 2, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 141; __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 = 138; __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 = 141; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else if (PyTuple_GET_SIZE(__pyx_args) != 2) {
       goto __pyx_L5_argtuple_error;
@@ -39591,18 +39763,18 @@ static int __pyx_pw_4cdec_2sa_3_sa_7Sampler_1__cinit__(PyObject *__pyx_v_self, P
       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 = 138; __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 = 141; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
     __pyx_v_fsarray = ((struct __pyx_obj_4cdec_2sa_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 = 138; __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 = 141; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_AddTraceback("cdec.sa._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_4cdec_2sa_3_sa_SuffixArray, 1, "fsarray", 0))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 138; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_fsarray), __pyx_ptype_4cdec_2sa_3_sa_SuffixArray, 1, "fsarray", 0))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 141; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_r = __pyx_pf_4cdec_2sa_3_sa_7Sampler___cinit__(((struct __pyx_obj_4cdec_2sa_3_sa_Sampler *)__pyx_v_self), __pyx_v_sample_size, __pyx_v_fsarray);
   goto __pyx_L0;
   __pyx_L1_error:;
@@ -39612,7 +39784,7 @@ static int __pyx_pw_4cdec_2sa_3_sa_7Sampler_1__cinit__(PyObject *__pyx_v_self, P
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":138
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":141
  *     cdef IntList sa
  * 
  *     def __cinit__(self, int sample_size, SuffixArray fsarray):             # <<<<<<<<<<<<<<
@@ -39632,7 +39804,7 @@ static int __pyx_pf_4cdec_2sa_3_sa_7Sampler___cinit__(struct __pyx_obj_4cdec_2sa
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__cinit__", 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":139
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":142
  * 
  *     def __cinit__(self, int sample_size, SuffixArray fsarray):
  *         self.sample_size = sample_size             # <<<<<<<<<<<<<<
@@ -39641,7 +39813,7 @@ static int __pyx_pf_4cdec_2sa_3_sa_7Sampler___cinit__(struct __pyx_obj_4cdec_2sa
  */
   __pyx_v_self->sample_size = __pyx_v_sample_size;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":140
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":143
  *     def __cinit__(self, int sample_size, SuffixArray fsarray):
  *         self.sample_size = sample_size
  *         self.sa = fsarray.sa             # <<<<<<<<<<<<<<
@@ -39656,7 +39828,7 @@ static int __pyx_pf_4cdec_2sa_3_sa_7Sampler___cinit__(struct __pyx_obj_4cdec_2sa
   __pyx_v_self->sa = ((struct __pyx_obj_4cdec_2sa_3_sa_IntList *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":141
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":144
  *         self.sample_size = sample_size
  *         self.sa = fsarray.sa
  *         if sample_size > 0:             # <<<<<<<<<<<<<<
@@ -39666,21 +39838,21 @@ static int __pyx_pf_4cdec_2sa_3_sa_7Sampler___cinit__(struct __pyx_obj_4cdec_2sa
   __pyx_t_2 = ((__pyx_v_sample_size > 0) != 0);
   if (__pyx_t_2) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":142
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":145
  *         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_1 = __Pyx_GetModuleGlobalName(__pyx_n_s__logger); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 142; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s__logger); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 145; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s__info); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 142; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s__info); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 145; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-    __pyx_t_1 = PyInt_FromLong(__pyx_v_sample_size); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 142; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyInt_FromLong(__pyx_v_sample_size); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 145; __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[8]; __pyx_lineno = 142; __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 = 145; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_INCREF(((PyObject *)__pyx_kp_s_104));
     PyTuple_SET_ITEM(__pyx_t_4, 0, ((PyObject *)__pyx_kp_s_104));
@@ -39688,7 +39860,7 @@ static int __pyx_pf_4cdec_2sa_3_sa_7Sampler___cinit__(struct __pyx_obj_4cdec_2sa
     PyTuple_SET_ITEM(__pyx_t_4, 1, __pyx_t_1);
     __Pyx_GIVEREF(__pyx_t_1);
     __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[8]; __pyx_lineno = 142; __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[8]; __pyx_lineno = 145; __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;
@@ -39697,19 +39869,19 @@ static int __pyx_pf_4cdec_2sa_3_sa_7Sampler___cinit__(struct __pyx_obj_4cdec_2sa
   }
   /*else*/ {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":144
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":147
  *             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_1 = __Pyx_GetModuleGlobalName(__pyx_n_s__logger); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 144; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s__logger); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 147; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s__info); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 144; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s__info); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 147; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-    __pyx_t_1 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_k_tuple_106), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 144; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_k_tuple_106), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 147; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
@@ -39739,7 +39911,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_7Sampler_3sample(PyObject *__pyx_v_self
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("sample (wrapper)", 0);
-  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_phrase_location), __pyx_ptype_4cdec_2sa_3_sa_PhraseLocation, 1, "phrase_location", 0))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 146; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_phrase_location), __pyx_ptype_4cdec_2sa_3_sa_PhraseLocation, 1, "phrase_location", 0))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 149; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_r = __pyx_pf_4cdec_2sa_3_sa_7Sampler_2sample(((struct __pyx_obj_4cdec_2sa_3_sa_Sampler *)__pyx_v_self), ((struct __pyx_obj_4cdec_2sa_3_sa_PhraseLocation *)__pyx_v_phrase_location));
   goto __pyx_L0;
   __pyx_L1_error:;
@@ -39749,7 +39921,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_7Sampler_3sample(PyObject *__pyx_v_self
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":146
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":149
  *             logger.info("Sampling strategy: no sampling")
  * 
  *     def sample(self, PhraseLocation phrase_location):             # <<<<<<<<<<<<<<
@@ -39776,19 +39948,19 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_7Sampler_2sample(struct __pyx_obj_4cdec
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("sample", 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":159
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":162
  *         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_4cdec_2sa_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 159; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 162; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_v_sample = ((struct __pyx_obj_4cdec_2sa_3_sa_IntList *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":160
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":163
  * 
  *         sample = IntList()
  *         if phrase_location.arr is None:             # <<<<<<<<<<<<<<
@@ -39799,7 +39971,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_7Sampler_2sample(struct __pyx_obj_4cdec
   __pyx_t_3 = (__pyx_t_2 != 0);
   if (__pyx_t_3) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":161
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":164
  *         sample = IntList()
  *         if phrase_location.arr is None:
  *             num_locations = phrase_location.sa_high - phrase_location.sa_low             # <<<<<<<<<<<<<<
@@ -39808,7 +39980,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_7Sampler_2sample(struct __pyx_obj_4cdec
  */
     __pyx_v_num_locations = (__pyx_v_phrase_location->sa_high - __pyx_v_phrase_location->sa_low);
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":162
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":165
  *         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:             # <<<<<<<<<<<<<<
@@ -39824,7 +39996,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_7Sampler_2sample(struct __pyx_obj_4cdec
     }
     if (__pyx_t_4) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":163
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":166
  *             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)             # <<<<<<<<<<<<<<
@@ -39836,7 +40008,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_7Sampler_2sample(struct __pyx_obj_4cdec
     }
     /*else*/ {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":165
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":168
  *                 sample._extend_arr(self.sa.arr + phrase_location.sa_low, num_locations)
  *             else:
  *                 stepsize = float(num_locations)/float(self.sample_size)             # <<<<<<<<<<<<<<
@@ -39851,11 +40023,11 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_7Sampler_2sample(struct __pyx_obj_4cdec
         #ifdef WITH_THREAD
         PyGILState_Release(__pyx_gilstate_save);
         #endif
-        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 165; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 168; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       }
       __pyx_v_stepsize = (((double)__pyx_v_num_locations) / ((double)__pyx_v_self->sample_size));
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":166
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":169
  *             else:
  *                 stepsize = float(num_locations)/float(self.sample_size)
  *                 i = phrase_location.sa_low             # <<<<<<<<<<<<<<
@@ -39865,7 +40037,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_7Sampler_2sample(struct __pyx_obj_4cdec
       __pyx_t_5 = __pyx_v_phrase_location->sa_low;
       __pyx_v_i = __pyx_t_5;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":167
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":170
  *                 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:             # <<<<<<<<<<<<<<
@@ -39882,7 +40054,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_7Sampler_2sample(struct __pyx_obj_4cdec
         }
         if (!__pyx_t_2) break;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":170
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":173
  *                     '''Note: int(i) not guaranteed to have the desired
  *                     effect, according to the python documentation'''
  *                     if fmod(i,1.0) > 0.5:             # <<<<<<<<<<<<<<
@@ -39892,7 +40064,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_7Sampler_2sample(struct __pyx_obj_4cdec
         __pyx_t_2 = ((fmod(__pyx_v_i, 1.0) > 0.5) != 0);
         if (__pyx_t_2) {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":171
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":174
  *                     effect, according to the python documentation'''
  *                     if fmod(i,1.0) > 0.5:
  *                         val = int(ceil(i))             # <<<<<<<<<<<<<<
@@ -39904,7 +40076,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_7Sampler_2sample(struct __pyx_obj_4cdec
         }
         /*else*/ {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":173
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":176
  *                         val = int(ceil(i))
  *                     else:
  *                         val = int(floor(i))             # <<<<<<<<<<<<<<
@@ -39915,7 +40087,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_7Sampler_2sample(struct __pyx_obj_4cdec
         }
         __pyx_L7:;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":174
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":177
  *                     else:
  *                         val = int(floor(i))
  *                     sample._append(self.sa.arr[val])             # <<<<<<<<<<<<<<
@@ -39924,7 +40096,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_7Sampler_2sample(struct __pyx_obj_4cdec
  */
         ((struct __pyx_vtabstruct_4cdec_2sa_3_sa_IntList *)__pyx_v_sample->__pyx_vtab)->_append(__pyx_v_sample, (__pyx_v_self->sa->arr[__pyx_v_val]));
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":175
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":178
  *                         val = int(floor(i))
  *                     sample._append(self.sa.arr[val])
  *                     i = i + stepsize             # <<<<<<<<<<<<<<
@@ -39939,7 +40111,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_7Sampler_2sample(struct __pyx_obj_4cdec
   }
   /*else*/ {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":177
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":180
  *                     i = i + stepsize
  *         else:
  *             num_locations = (phrase_location.arr_high - phrase_location.arr_low) / phrase_location.num_subpatterns             # <<<<<<<<<<<<<<
@@ -39955,7 +40127,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_7Sampler_2sample(struct __pyx_obj_4cdec
       #ifdef WITH_THREAD
       PyGILState_Release(__pyx_gilstate_save);
       #endif
-      {__pyx_filename = __pyx_f[8]; __pyx_lineno = 177; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      {__pyx_filename = __pyx_f[8]; __pyx_lineno = 180; __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))) {
       #ifdef WITH_THREAD
@@ -39965,11 +40137,11 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_7Sampler_2sample(struct __pyx_obj_4cdec
       #ifdef WITH_THREAD
       PyGILState_Release(__pyx_gilstate_save);
       #endif
-      {__pyx_filename = __pyx_f[8]; __pyx_lineno = 177; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      {__pyx_filename = __pyx_f[8]; __pyx_lineno = 180; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     }
     __pyx_v_num_locations = __Pyx_div_int(__pyx_t_5, __pyx_v_phrase_location->num_subpatterns);
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":178
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":181
  *         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:             # <<<<<<<<<<<<<<
@@ -39985,7 +40157,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_7Sampler_2sample(struct __pyx_obj_4cdec
     }
     if (__pyx_t_3) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":179
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":182
  *             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             # <<<<<<<<<<<<<<
@@ -40000,7 +40172,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_7Sampler_2sample(struct __pyx_obj_4cdec
     }
     /*else*/ {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":181
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":184
  *                 sample = phrase_location.arr
  *             else:
  *                 stepsize = float(num_locations)/float(self.sample_size)             # <<<<<<<<<<<<<<
@@ -40015,11 +40187,11 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_7Sampler_2sample(struct __pyx_obj_4cdec
         #ifdef WITH_THREAD
         PyGILState_Release(__pyx_gilstate_save);
         #endif
-        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 181; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 184; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       }
       __pyx_v_stepsize = (((double)__pyx_v_num_locations) / ((double)__pyx_v_self->sample_size));
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":182
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":185
  *             else:
  *                 stepsize = float(num_locations)/float(self.sample_size)
  *                 i = phrase_location.arr_low             # <<<<<<<<<<<<<<
@@ -40029,7 +40201,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_7Sampler_2sample(struct __pyx_obj_4cdec
       __pyx_t_5 = __pyx_v_phrase_location->arr_low;
       __pyx_v_i = __pyx_t_5;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":183
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":186
  *                 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:             # <<<<<<<<<<<<<<
@@ -40046,7 +40218,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_7Sampler_2sample(struct __pyx_obj_4cdec
         }
         if (!__pyx_t_4) break;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":186
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":189
  *                     '''Note: int(i) not guaranteed to have the desired
  *                     effect, according to the python documentation'''
  *                     if fmod(i,1.0) > 0.5:             # <<<<<<<<<<<<<<
@@ -40056,7 +40228,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_7Sampler_2sample(struct __pyx_obj_4cdec
         __pyx_t_4 = ((fmod(__pyx_v_i, 1.0) > 0.5) != 0);
         if (__pyx_t_4) {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":187
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":190
  *                     effect, according to the python documentation'''
  *                     if fmod(i,1.0) > 0.5:
  *                         val = int(ceil(i))             # <<<<<<<<<<<<<<
@@ -40068,7 +40240,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_7Sampler_2sample(struct __pyx_obj_4cdec
         }
         /*else*/ {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":189
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":192
  *                         val = int(ceil(i))
  *                     else:
  *                         val = int(floor(i))             # <<<<<<<<<<<<<<
@@ -40079,7 +40251,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_7Sampler_2sample(struct __pyx_obj_4cdec
         }
         __pyx_L11:;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":190
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":193
  *                     else:
  *                         val = int(floor(i))
  *                     j = phrase_location.arr_low + (val*phrase_location.num_subpatterns)             # <<<<<<<<<<<<<<
@@ -40088,7 +40260,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_7Sampler_2sample(struct __pyx_obj_4cdec
  */
         __pyx_v_j = (__pyx_v_phrase_location->arr_low + (__pyx_v_val * __pyx_v_phrase_location->num_subpatterns));
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":191
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":194
  *                         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)             # <<<<<<<<<<<<<<
@@ -40097,7 +40269,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_7Sampler_2sample(struct __pyx_obj_4cdec
  */
         ((struct __pyx_vtabstruct_4cdec_2sa_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);
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":192
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":195
  *                     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             # <<<<<<<<<<<<<<
@@ -40111,7 +40283,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_7Sampler_2sample(struct __pyx_obj_4cdec
   }
   __pyx_L3:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":193
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":196
  *                     sample._extend_arr(phrase_location.arr.arr + j, phrase_location.num_subpatterns)
  *                     i = i + stepsize
  *         return sample             # <<<<<<<<<<<<<<
@@ -40136,7 +40308,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_7Sampler_2sample(struct __pyx_obj_4cdec
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":205
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":208
  * 
  * 
  * cdef void assign_matching(Matching* m, int* arr, int start, int step, int* sent_id_arr):             # <<<<<<<<<<<<<<
@@ -40148,7 +40320,7 @@ static void __pyx_f_4cdec_2sa_3_sa_assign_matching(struct __pyx_t_4cdec_2sa_3_sa
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("assign_matching", 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":206
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":209
  * 
  * cdef void assign_matching(Matching* m, int* arr, int start, int step, int* sent_id_arr):
  *     m.arr = arr             # <<<<<<<<<<<<<<
@@ -40157,7 +40329,7 @@ static void __pyx_f_4cdec_2sa_3_sa_assign_matching(struct __pyx_t_4cdec_2sa_3_sa
  */
   __pyx_v_m->arr = __pyx_v_arr;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":207
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":210
  * cdef void assign_matching(Matching* m, int* arr, int start, int step, int* sent_id_arr):
  *     m.arr = arr
  *     m.start = start             # <<<<<<<<<<<<<<
@@ -40166,7 +40338,7 @@ static void __pyx_f_4cdec_2sa_3_sa_assign_matching(struct __pyx_t_4cdec_2sa_3_sa
  */
   __pyx_v_m->start = __pyx_v_start;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":208
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":211
  *     m.arr = arr
  *     m.start = start
  *     m.end = start + step             # <<<<<<<<<<<<<<
@@ -40175,7 +40347,7 @@ static void __pyx_f_4cdec_2sa_3_sa_assign_matching(struct __pyx_t_4cdec_2sa_3_sa
  */
   __pyx_v_m->end = (__pyx_v_start + __pyx_v_step);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":209
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":212
  *     m.start = start
  *     m.end = start + step
  *     m.sent_id = sent_id_arr[arr[start]]             # <<<<<<<<<<<<<<
@@ -40184,7 +40356,7 @@ static void __pyx_f_4cdec_2sa_3_sa_assign_matching(struct __pyx_t_4cdec_2sa_3_sa
  */
   __pyx_v_m->sent_id = (__pyx_v_sent_id_arr[(__pyx_v_arr[__pyx_v_start])]);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":210
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":213
  *     m.end = start + step
  *     m.sent_id = sent_id_arr[arr[start]]
  *     m.size = step             # <<<<<<<<<<<<<<
@@ -40196,7 +40368,7 @@ static void __pyx_f_4cdec_2sa_3_sa_assign_matching(struct __pyx_t_4cdec_2sa_3_sa
   __Pyx_RefNannyFinishContext();
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":213
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":216
  * 
  * 
  * cdef int* append_combined_matching(int* arr, Matching* loc1, Matching* loc2,             # <<<<<<<<<<<<<<
@@ -40213,7 +40385,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_append_combined_matching(int *__pyx_v_arr, st
   int __pyx_t_2;
   __Pyx_RefNannySetupContext("append_combined_matching", 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":217
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":220
  *     cdef int i, new_len
  * 
  *     new_len = result_len[0] + num_subpatterns             # <<<<<<<<<<<<<<
@@ -40222,7 +40394,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_append_combined_matching(int *__pyx_v_arr, st
  */
   __pyx_v_new_len = ((__pyx_v_result_len[0]) + __pyx_v_num_subpatterns);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":218
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":221
  * 
  *     new_len = result_len[0] + num_subpatterns
  *     arr = <int*> realloc(arr, new_len*sizeof(int))             # <<<<<<<<<<<<<<
@@ -40231,7 +40403,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_append_combined_matching(int *__pyx_v_arr, st
  */
   __pyx_v_arr = ((int *)realloc(__pyx_v_arr, (__pyx_v_new_len * (sizeof(int)))));
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":220
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":223
  *     arr = <int*> realloc(arr, new_len*sizeof(int))
  * 
  *     for i from 0 <= i < loc1.size:             # <<<<<<<<<<<<<<
@@ -40241,7 +40413,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_append_combined_matching(int *__pyx_v_arr, st
   __pyx_t_1 = __pyx_v_loc1->size;
   for (__pyx_v_i = 0; __pyx_v_i < __pyx_t_1; __pyx_v_i++) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":221
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":224
  * 
  *     for i from 0 <= i < loc1.size:
  *         arr[result_len[0]+i] = loc1.arr[loc1.start+i]             # <<<<<<<<<<<<<<
@@ -40251,7 +40423,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_append_combined_matching(int *__pyx_v_arr, st
     (__pyx_v_arr[((__pyx_v_result_len[0]) + __pyx_v_i)]) = (__pyx_v_loc1->arr[(__pyx_v_loc1->start + __pyx_v_i)]);
   }
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":222
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":225
  *     for i from 0 <= i < loc1.size:
  *         arr[result_len[0]+i] = loc1.arr[loc1.start+i]
  *     if num_subpatterns > loc1.size:             # <<<<<<<<<<<<<<
@@ -40261,7 +40433,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_append_combined_matching(int *__pyx_v_arr, st
   __pyx_t_2 = ((__pyx_v_num_subpatterns > __pyx_v_loc1->size) != 0);
   if (__pyx_t_2) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":223
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":226
  *         arr[result_len[0]+i] = loc1.arr[loc1.start+i]
  *     if num_subpatterns > loc1.size:
  *         arr[new_len-1] = loc2.arr[loc2.end-1]             # <<<<<<<<<<<<<<
@@ -40273,7 +40445,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_append_combined_matching(int *__pyx_v_arr, st
   }
   __pyx_L5:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":224
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":227
  *     if num_subpatterns > loc1.size:
  *         arr[new_len-1] = loc2.arr[loc2.end-1]
  *     result_len[0] = new_len             # <<<<<<<<<<<<<<
@@ -40282,7 +40454,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_append_combined_matching(int *__pyx_v_arr, st
  */
   (__pyx_v_result_len[0]) = __pyx_v_new_len;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":225
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":228
  *         arr[new_len-1] = loc2.arr[loc2.end-1]
  *     result_len[0] = new_len
  *     return arr             # <<<<<<<<<<<<<<
@@ -40298,7 +40470,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_append_combined_matching(int *__pyx_v_arr, st
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":228
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":231
  * 
  * 
  * cdef int* extend_arr(int* arr, int* arr_len, int* appendix, int appendix_len):             # <<<<<<<<<<<<<<
@@ -40312,7 +40484,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_extend_arr(int *__pyx_v_arr, int *__pyx_v_arr
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("extend_arr", 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":231
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":234
  *     cdef int new_len
  * 
  *     new_len = arr_len[0] + appendix_len             # <<<<<<<<<<<<<<
@@ -40321,7 +40493,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_extend_arr(int *__pyx_v_arr, int *__pyx_v_arr
  */
   __pyx_v_new_len = ((__pyx_v_arr_len[0]) + __pyx_v_appendix_len);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":232
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":235
  * 
  *     new_len = arr_len[0] + appendix_len
  *     arr = <int*> realloc(arr, new_len*sizeof(int))             # <<<<<<<<<<<<<<
@@ -40330,7 +40502,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_extend_arr(int *__pyx_v_arr, int *__pyx_v_arr
  */
   __pyx_v_arr = ((int *)realloc(__pyx_v_arr, (__pyx_v_new_len * (sizeof(int)))));
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":233
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":236
  *     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))             # <<<<<<<<<<<<<<
@@ -40339,7 +40511,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_extend_arr(int *__pyx_v_arr, int *__pyx_v_arr
  */
   memcpy((__pyx_v_arr + (__pyx_v_arr_len[0])), __pyx_v_appendix, (__pyx_v_appendix_len * (sizeof(int))));
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":234
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":237
  *     arr = <int*> realloc(arr, new_len*sizeof(int))
  *     memcpy(arr+arr_len[0], appendix, appendix_len*sizeof(int))
  *     arr_len[0] = new_len             # <<<<<<<<<<<<<<
@@ -40348,7 +40520,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_extend_arr(int *__pyx_v_arr, int *__pyx_v_arr
  */
   (__pyx_v_arr_len[0]) = __pyx_v_new_len;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":235
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":238
  *     memcpy(arr+arr_len[0], appendix, appendix_len*sizeof(int))
  *     arr_len[0] = new_len
  *     return arr             # <<<<<<<<<<<<<<
@@ -40364,7 +40536,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_extend_arr(int *__pyx_v_arr, int *__pyx_v_arr
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":237
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":240
  *     return arr
  * 
  * cdef int median(int low, int high, int step):             # <<<<<<<<<<<<<<
@@ -40381,7 +40553,7 @@ static int __pyx_f_4cdec_2sa_3_sa_median(int __pyx_v_low, int __pyx_v_high, int
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("median", 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":238
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":241
  * 
  * cdef int median(int low, int high, int step):
  *     return low + (((high - low)/step)/2)*step             # <<<<<<<<<<<<<<
@@ -40397,7 +40569,7 @@ static int __pyx_f_4cdec_2sa_3_sa_median(int __pyx_v_low, int __pyx_v_high, int
     #ifdef WITH_THREAD
     PyGILState_Release(__pyx_gilstate_save);
     #endif
-    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 238; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 241; __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))) {
     #ifdef WITH_THREAD
@@ -40407,7 +40579,7 @@ static int __pyx_f_4cdec_2sa_3_sa_median(int __pyx_v_low, int __pyx_v_high, int
     #ifdef WITH_THREAD
     PyGILState_Release(__pyx_gilstate_save);
     #endif
-    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 238; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 241; __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;
@@ -40422,7 +40594,7 @@ static int __pyx_f_4cdec_2sa_3_sa_median(int __pyx_v_low, int __pyx_v_high, int
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":241
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":244
  * 
  * 
  * cdef void find_comparable_matchings(int low, int high, int* arr, int step, int loc, int* loc_minus, int* loc_plus):             # <<<<<<<<<<<<<<
@@ -40437,7 +40609,7 @@ static void __pyx_f_4cdec_2sa_3_sa_find_comparable_matchings(int __pyx_v_low, in
   int __pyx_t_3;
   __Pyx_RefNannySetupContext("find_comparable_matchings", 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":245
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":248
  *     # in which all matchings have the same first index as the one
  *     # starting at loc
  *     loc_plus[0] = loc + step             # <<<<<<<<<<<<<<
@@ -40446,7 +40618,7 @@ static void __pyx_f_4cdec_2sa_3_sa_find_comparable_matchings(int __pyx_v_low, in
  */
   (__pyx_v_loc_plus[0]) = (__pyx_v_loc + __pyx_v_step);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":246
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":249
  *     # starting at loc
  *     loc_plus[0] = loc + step
  *     while loc_plus[0] < high and arr[loc_plus[0]] == arr[loc]:             # <<<<<<<<<<<<<<
@@ -40463,7 +40635,7 @@ static void __pyx_f_4cdec_2sa_3_sa_find_comparable_matchings(int __pyx_v_low, in
     }
     if (!__pyx_t_3) break;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":247
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":250
  *     loc_plus[0] = loc + step
  *     while loc_plus[0] < high and arr[loc_plus[0]] == arr[loc]:
  *         loc_plus[0] = loc_plus[0] + step             # <<<<<<<<<<<<<<
@@ -40473,7 +40645,7 @@ static void __pyx_f_4cdec_2sa_3_sa_find_comparable_matchings(int __pyx_v_low, in
     (__pyx_v_loc_plus[0]) = ((__pyx_v_loc_plus[0]) + __pyx_v_step);
   }
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":248
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":251
  *     while loc_plus[0] < high and arr[loc_plus[0]] == arr[loc]:
  *         loc_plus[0] = loc_plus[0] + step
  *     loc_minus[0] = loc             # <<<<<<<<<<<<<<
@@ -40482,7 +40654,7 @@ static void __pyx_f_4cdec_2sa_3_sa_find_comparable_matchings(int __pyx_v_low, in
  */
   (__pyx_v_loc_minus[0]) = __pyx_v_loc;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":249
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":252
  *         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]:             # <<<<<<<<<<<<<<
@@ -40499,7 +40671,7 @@ static void __pyx_f_4cdec_2sa_3_sa_find_comparable_matchings(int __pyx_v_low, in
     }
     if (!__pyx_t_2) break;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":250
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":253
  *     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             # <<<<<<<<<<<<<<
@@ -40546,7 +40718,7 @@ static int __pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_1__cinit__(PyObject
     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_72,&__pyx_n_s__precompute_rank,&__pyx_n_s_107,&__pyx_n_s_108,&__pyx_n_s_73,&__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};
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":314
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":317
  *             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,             # <<<<<<<<<<<<<<
@@ -40555,7 +40727,7 @@ static int __pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_1__cinit__(PyObject
  */
     values[3] = ((PyObject *)Py_None);
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":322
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":325
  *             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,             # <<<<<<<<<<<<<<
@@ -40564,7 +40736,7 @@ static int __pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_1__cinit__(PyObject
  */
     values[7] = ((PyObject *)Py_None);
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":324
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":327
  *             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,             # <<<<<<<<<<<<<<
@@ -40573,7 +40745,7 @@ static int __pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_1__cinit__(PyObject
  */
     values[8] = ((PyObject *)Py_None);
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":328
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":331
  *             unsigned min_gap_size=2,
  *             # filename of file containing precomputed collocations
  *             precompute_file=None,             # <<<<<<<<<<<<<<
@@ -40716,7 +40888,7 @@ static int __pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_1__cinit__(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 = 306; __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 = 309; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else {
       switch (PyTuple_GET_SIZE(__pyx_args)) {
@@ -40747,10 +40919,10 @@ static int __pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_1__cinit__(PyObject
     }
     __pyx_v_alignment = ((struct __pyx_obj_4cdec_2sa_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 = 310; __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 = 313; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
     } else {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":310
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":313
  *             Alignment alignment,
  *             # parameter for double-binary search; doesn't seem to matter much
  *             float by_slack_factor=1.0,             # <<<<<<<<<<<<<<
@@ -40760,49 +40932,49 @@ static int __pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_1__cinit__(PyObject
       __pyx_v_by_slack_factor = ((float)1.0);
     }
     if (values[2]) {
-      __pyx_v_category = __Pyx_PyObject_AsString(values[2]); if (unlikely((!__pyx_v_category) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 312; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+      __pyx_v_category = __Pyx_PyObject_AsString(values[2]); if (unlikely((!__pyx_v_category) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 315; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
     } else {
       __pyx_v_category = ((char *)__pyx_k_109);
     }
     __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 = 316; __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 = 319; __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 = 318; __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 = 321; __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 = 320; __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 = 323; __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 = 326; __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 = 329; __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 = 330; __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 = 333; __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 = 332; __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 = 335; __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 = 334; __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 = 337; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
     } else {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":334
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":337
  *             unsigned precompute_rank=100,
  *             # require extracted rules to have at least one aligned word
  *             bint require_aligned_terminal=True,             # <<<<<<<<<<<<<<
@@ -40812,10 +40984,10 @@ static int __pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_1__cinit__(PyObject
       __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 = 336; __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 = 339; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
     } else {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":336
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":339
  *             bint require_aligned_terminal=True,
  *             # require each contiguous chunk of extracted rules to have at least one aligned word
  *             bint require_aligned_chunks=False,             # <<<<<<<<<<<<<<
@@ -40825,20 +40997,20 @@ static int __pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_1__cinit__(PyObject
       __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 = 338; __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 = 341; __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 = 340; __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 = 343; __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 = 342; __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 = 345; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
     } else {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":342
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":345
  *             unsigned train_min_gap_size=2,
  *             # False if phrases should be loose (better but slower), True otherwise
  *             bint tight_phrases=True,             # <<<<<<<<<<<<<<
@@ -40848,10 +41020,10 @@ static int __pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_1__cinit__(PyObject
       __pyx_v_tight_phrases = ((int)1);
     }
     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 = 344; __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 = 347; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
     } else {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":344
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":347
  *             bint tight_phrases=True,
  *             # True to require use of double-binary alg, false otherwise
  *             bint use_baeza_yates=True,             # <<<<<<<<<<<<<<
@@ -40861,10 +41033,10 @@ static int __pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_1__cinit__(PyObject
       __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 = 346; __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 = 349; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
     } else {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":346
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":349
  *             bint use_baeza_yates=True,
  *             # True to enable used of precomputed collocations
  *             bint use_collocations=True,             # <<<<<<<<<<<<<<
@@ -40874,10 +41046,10 @@ static int __pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_1__cinit__(PyObject
       __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 = 348; __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 = 351; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
     } else {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":348
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":351
  *             bint use_collocations=True,
  *             # True to enable use of precomputed inverted indices
  *             bint use_index=True):             # <<<<<<<<<<<<<<
@@ -40889,13 +41061,13 @@ static int __pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_1__cinit__(PyObject
   }
   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 = 306; __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 = 309; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_AddTraceback("cdec.sa._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_4cdec_2sa_3_sa_Alignment, 1, "alignment", 0))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 308; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_alignment), __pyx_ptype_4cdec_2sa_3_sa_Alignment, 1, "alignment", 0))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 311; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_r = __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory___cinit__(((struct __pyx_obj_4cdec_2sa_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:;
@@ -40905,7 +41077,7 @@ static int __pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_1__cinit__(PyObject
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":306
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":309
  *     cdef online_stats
  * 
  *     def __cinit__(self,             # <<<<<<<<<<<<<<
@@ -40927,21 +41099,21 @@ static int __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory___cinit__(struct __
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__cinit__", 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":354
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":357
  *         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 = 354; __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 = 357; __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 = 354; __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 = 357; __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_4cdec_2sa_3_sa_TrieTable)), ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 354; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_TrieTable)), ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 357; __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);
@@ -40950,20 +41122,20 @@ static int __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory___cinit__(struct __
   __pyx_v_self->rules = ((struct __pyx_obj_4cdec_2sa_3_sa_TrieTable *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":355
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":358
  *         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 = 355; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 358; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_1));
-  __pyx_t_2 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_PhraseLocation)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 355; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_PhraseLocation)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 358; __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 = 355; __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 = 358; __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_4cdec_2sa_3_sa_ExtendedTrieNode)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_1)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 355; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_ExtendedTrieNode)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_1)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 358; __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);
@@ -40972,7 +41144,7 @@ static int __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory___cinit__(struct __
   __pyx_v_self->rules->root = __pyx_t_2;
   __pyx_t_2 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":356
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":359
  *         self.rules = TrieTable(True) # cache
  *         self.rules.root = ExtendedTrieNode(phrase_location=PhraseLocation())
  *         if alignment is None:             # <<<<<<<<<<<<<<
@@ -40983,23 +41155,23 @@ static int __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory___cinit__(struct __
   __pyx_t_4 = (__pyx_t_3 != 0);
   if (__pyx_t_4) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":357
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":360
  *         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_111), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 357; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyObject_Call(__pyx_builtin_Exception, ((PyObject *)__pyx_k_tuple_111), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 360; __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 = 357; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 360; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     goto __pyx_L3;
   }
   __pyx_L3:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":358
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":361
  *         if alignment is None:
  *             raise Exception("Must specify an alignment object")
  *         self.alignment = alignment             # <<<<<<<<<<<<<<
@@ -41012,7 +41184,7 @@ static int __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory___cinit__(struct __
   __Pyx_DECREF(((PyObject *)__pyx_v_self->alignment));
   __pyx_v_self->alignment = __pyx_v_alignment;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":362
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":365
  *         # grammar parameters and settings
  *         # NOTE: setting max_nonterminals > 2 is not currently supported in Hiero
  *         self.max_length = max_length             # <<<<<<<<<<<<<<
@@ -41021,7 +41193,7 @@ static int __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory___cinit__(struct __
  */
   __pyx_v_self->max_length = __pyx_v_max_length;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":363
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":366
  *         # NOTE: setting max_nonterminals > 2 is not currently supported in Hiero
  *         self.max_length = max_length
  *         self.max_nonterminals = max_nonterminals             # <<<<<<<<<<<<<<
@@ -41030,7 +41202,7 @@ static int __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory___cinit__(struct __
  */
   __pyx_v_self->max_nonterminals = __pyx_v_max_nonterminals;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":364
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":367
  *         self.max_length = max_length
  *         self.max_nonterminals = max_nonterminals
  *         self.max_initial_size = max_initial_size             # <<<<<<<<<<<<<<
@@ -41039,7 +41211,7 @@ static int __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory___cinit__(struct __
  */
   __pyx_v_self->max_initial_size = __pyx_v_max_initial_size;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":365
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":368
  *         self.max_nonterminals = max_nonterminals
  *         self.max_initial_size = max_initial_size
  *         self.train_max_initial_size = train_max_initial_size             # <<<<<<<<<<<<<<
@@ -41048,7 +41220,7 @@ static int __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory___cinit__(struct __
  */
   __pyx_v_self->train_max_initial_size = __pyx_v_train_max_initial_size;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":366
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":369
  *         self.max_initial_size = max_initial_size
  *         self.train_max_initial_size = train_max_initial_size
  *         self.min_gap_size = min_gap_size             # <<<<<<<<<<<<<<
@@ -41057,7 +41229,7 @@ static int __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory___cinit__(struct __
  */
   __pyx_v_self->min_gap_size = __pyx_v_min_gap_size;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":367
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":370
  *         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             # <<<<<<<<<<<<<<
@@ -41066,7 +41238,7 @@ static int __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory___cinit__(struct __
  */
   __pyx_v_self->train_min_gap_size = __pyx_v_train_min_gap_size;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":368
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":371
  *         self.min_gap_size = min_gap_size
  *         self.train_min_gap_size = train_min_gap_size
  *         self.category = sym_fromstring(category, False)             # <<<<<<<<<<<<<<
@@ -41075,7 +41247,7 @@ static int __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory___cinit__(struct __
  */
   __pyx_v_self->category = __pyx_f_4cdec_2sa_3_sa_sym_fromstring(__pyx_v_category, 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":370
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":373
  *         self.category = sym_fromstring(category, False)
  * 
  *         if max_chunks is None:             # <<<<<<<<<<<<<<
@@ -41086,7 +41258,7 @@ static int __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory___cinit__(struct __
   __pyx_t_3 = (__pyx_t_4 != 0);
   if (__pyx_t_3) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":371
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":374
  * 
  *         if max_chunks is None:
  *             self.max_chunks = self.max_nonterminals + 1             # <<<<<<<<<<<<<<
@@ -41098,19 +41270,19 @@ static int __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory___cinit__(struct __
   }
   /*else*/ {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":373
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":376
  *             self.max_chunks = self.max_nonterminals + 1
  *         else:
  *             self.max_chunks = max_chunks             # <<<<<<<<<<<<<<
  * 
  *         if max_target_chunks is None:
  */
-    __pyx_t_5 = __Pyx_PyInt_AsInt(__pyx_v_max_chunks); if (unlikely((__pyx_t_5 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 373; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = __Pyx_PyInt_AsInt(__pyx_v_max_chunks); if (unlikely((__pyx_t_5 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 376; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __pyx_v_self->max_chunks = __pyx_t_5;
   }
   __pyx_L4:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":375
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":378
  *             self.max_chunks = max_chunks
  * 
  *         if max_target_chunks is None:             # <<<<<<<<<<<<<<
@@ -41121,7 +41293,7 @@ static int __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory___cinit__(struct __
   __pyx_t_4 = (__pyx_t_3 != 0);
   if (__pyx_t_4) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":376
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":379
  * 
  *         if max_target_chunks is None:
  *             self.max_target_chunks = self.max_nonterminals + 1             # <<<<<<<<<<<<<<
@@ -41133,19 +41305,19 @@ static int __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory___cinit__(struct __
   }
   /*else*/ {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":378
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":381
  *             self.max_target_chunks = self.max_nonterminals + 1
  *         else:
  *             self.max_target_chunks = max_target_chunks             # <<<<<<<<<<<<<<
  * 
  *         if max_target_length is None:
  */
-    __pyx_t_5 = __Pyx_PyInt_AsInt(__pyx_v_max_target_chunks); if (unlikely((__pyx_t_5 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 378; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = __Pyx_PyInt_AsInt(__pyx_v_max_target_chunks); if (unlikely((__pyx_t_5 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 381; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __pyx_v_self->max_target_chunks = __pyx_t_5;
   }
   __pyx_L5:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":380
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":383
  *             self.max_target_chunks = max_target_chunks
  * 
  *         if max_target_length is None:             # <<<<<<<<<<<<<<
@@ -41156,7 +41328,7 @@ static int __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory___cinit__(struct __
   __pyx_t_3 = (__pyx_t_4 != 0);
   if (__pyx_t_3) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":381
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":384
  * 
  *         if max_target_length is None:
  *             self.max_target_length = max_initial_size             # <<<<<<<<<<<<<<
@@ -41168,26 +41340,26 @@ static int __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory___cinit__(struct __
   }
   /*else*/ {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":383
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":386
  *             self.max_target_length = max_initial_size
  *         else:
  *             self.max_target_length = max_target_length             # <<<<<<<<<<<<<<
  * 
  *         # algorithmic parameters and settings
  */
-    __pyx_t_5 = __Pyx_PyInt_AsInt(__pyx_v_max_target_length); if (unlikely((__pyx_t_5 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 383; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = __Pyx_PyInt_AsInt(__pyx_v_max_target_length); if (unlikely((__pyx_t_5 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 386; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __pyx_v_self->max_target_length = __pyx_t_5;
   }
   __pyx_L6:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":386
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":389
  * 
  *         # algorithmic parameters and settings
  *         self.precomputed_collocations = {}             # <<<<<<<<<<<<<<
  *         self.precomputed_index = {}
  *         self.use_index = use_index
  */
-  __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 386; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 389; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_2));
   __Pyx_GIVEREF(((PyObject *)__pyx_t_2));
   __Pyx_GOTREF(__pyx_v_self->precomputed_collocations);
@@ -41195,14 +41367,14 @@ static int __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory___cinit__(struct __
   __pyx_v_self->precomputed_collocations = ((PyObject *)__pyx_t_2);
   __pyx_t_2 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":387
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":390
  *         # algorithmic parameters and settings
  *         self.precomputed_collocations = {}
  *         self.precomputed_index = {}             # <<<<<<<<<<<<<<
  *         self.use_index = use_index
  *         self.use_collocations = use_collocations
  */
-  __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 387; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 390; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_2));
   __Pyx_GIVEREF(((PyObject *)__pyx_t_2));
   __Pyx_GOTREF(__pyx_v_self->precomputed_index);
@@ -41210,7 +41382,7 @@ static int __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory___cinit__(struct __
   __pyx_v_self->precomputed_index = ((PyObject *)__pyx_t_2);
   __pyx_t_2 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":388
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":391
  *         self.precomputed_collocations = {}
  *         self.precomputed_index = {}
  *         self.use_index = use_index             # <<<<<<<<<<<<<<
@@ -41219,7 +41391,7 @@ static int __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory___cinit__(struct __
  */
   __pyx_v_self->use_index = __pyx_v_use_index;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":389
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":392
  *         self.precomputed_index = {}
  *         self.use_index = use_index
  *         self.use_collocations = use_collocations             # <<<<<<<<<<<<<<
@@ -41228,14 +41400,14 @@ static int __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory___cinit__(struct __
  */
   __pyx_v_self->use_collocations = __pyx_v_use_collocations;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":390
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":393
  *         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_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 390; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 393; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_2));
   __Pyx_GIVEREF(((PyObject *)__pyx_t_2));
   __Pyx_GOTREF(__pyx_v_self->max_rank);
@@ -41243,7 +41415,7 @@ static int __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory___cinit__(struct __
   __pyx_v_self->max_rank = ((PyObject *)__pyx_t_2);
   __pyx_t_2 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":391
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":394
  *         self.use_collocations = use_collocations
  *         self.max_rank = {}
  *         self.precompute_file = precompute_file             # <<<<<<<<<<<<<<
@@ -41256,7 +41428,7 @@ static int __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory___cinit__(struct __
   __Pyx_DECREF(__pyx_v_self->precompute_file);
   __pyx_v_self->precompute_file = __pyx_v_precompute_file;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":392
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":395
  *         self.max_rank = {}
  *         self.precompute_file = precompute_file
  *         self.precompute_rank = precompute_rank             # <<<<<<<<<<<<<<
@@ -41265,7 +41437,7 @@ static int __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory___cinit__(struct __
  */
   __pyx_v_self->precompute_rank = __pyx_v_precompute_rank;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":393
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":396
  *         self.precompute_file = precompute_file
  *         self.precompute_rank = precompute_rank
  *         self.precompute_secondary_rank = precompute_secondary_rank             # <<<<<<<<<<<<<<
@@ -41274,7 +41446,7 @@ static int __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory___cinit__(struct __
  */
   __pyx_v_self->precompute_secondary_rank = __pyx_v_precompute_secondary_rank;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":394
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":397
  *         self.precompute_rank = precompute_rank
  *         self.precompute_secondary_rank = precompute_secondary_rank
  *         self.use_baeza_yates = use_baeza_yates             # <<<<<<<<<<<<<<
@@ -41283,7 +41455,7 @@ static int __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory___cinit__(struct __
  */
   __pyx_v_self->use_baeza_yates = __pyx_v_use_baeza_yates;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":395
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":398
  *         self.precompute_secondary_rank = precompute_secondary_rank
  *         self.use_baeza_yates = use_baeza_yates
  *         self.by_slack_factor = by_slack_factor             # <<<<<<<<<<<<<<
@@ -41292,7 +41464,7 @@ static int __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory___cinit__(struct __
  */
   __pyx_v_self->by_slack_factor = __pyx_v_by_slack_factor;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":396
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":399
  *         self.use_baeza_yates = use_baeza_yates
  *         self.by_slack_factor = by_slack_factor
  *         self.tight_phrases = tight_phrases             # <<<<<<<<<<<<<<
@@ -41301,7 +41473,7 @@ static int __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory___cinit__(struct __
  */
   __pyx_v_self->tight_phrases = __pyx_v_tight_phrases;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":398
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":401
  *         self.tight_phrases = tight_phrases
  * 
  *         if require_aligned_chunks:             # <<<<<<<<<<<<<<
@@ -41311,7 +41483,7 @@ static int __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory___cinit__(struct __
   __pyx_t_3 = (__pyx_v_require_aligned_chunks != 0);
   if (__pyx_t_3) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":400
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":403
  *         if require_aligned_chunks:
  *             # one condition is a stronger version of the other.
  *             self.require_aligned_chunks = self.require_aligned_terminal = True             # <<<<<<<<<<<<<<
@@ -41323,7 +41495,7 @@ static int __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory___cinit__(struct __
     goto __pyx_L7;
   }
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":401
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":404
  *             # one condition is a stronger version of the other.
  *             self.require_aligned_chunks = self.require_aligned_terminal = True
  *         elif require_aligned_terminal:             # <<<<<<<<<<<<<<
@@ -41333,7 +41505,7 @@ static int __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory___cinit__(struct __
   __pyx_t_3 = (__pyx_v_require_aligned_terminal != 0);
   if (__pyx_t_3) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":402
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":405
  *             self.require_aligned_chunks = self.require_aligned_terminal = True
  *         elif require_aligned_terminal:
  *             self.require_aligned_chunks = False             # <<<<<<<<<<<<<<
@@ -41342,7 +41514,7 @@ static int __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory___cinit__(struct __
  */
     __pyx_v_self->require_aligned_chunks = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":403
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":406
  *         elif require_aligned_terminal:
  *             self.require_aligned_chunks = False
  *             self.require_aligned_terminal = True             # <<<<<<<<<<<<<<
@@ -41354,7 +41526,7 @@ static int __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory___cinit__(struct __
   }
   /*else*/ {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":405
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":408
  *             self.require_aligned_terminal = True
  *         else:
  *             self.require_aligned_chunks = self.require_aligned_terminal = False             # <<<<<<<<<<<<<<
@@ -41366,7 +41538,7 @@ static int __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory___cinit__(struct __
   }
   __pyx_L7:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":408
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":411
  * 
  *         # diagnostics
  *         self.prev_norm_prefix = ()             # <<<<<<<<<<<<<<
@@ -41379,17 +41551,17 @@ static int __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory___cinit__(struct __
   __Pyx_DECREF(__pyx_v_self->prev_norm_prefix);
   __pyx_v_self->prev_norm_prefix = ((PyObject *)__pyx_empty_tuple);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":410
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":413
  *         self.prev_norm_prefix = ()
  * 
  *         self.findexes = IntList(initial_len=10)             # <<<<<<<<<<<<<<
  *         self.findexes1 = IntList(initial_len=10)
  * 
  */
-  __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 410; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 413; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_2));
-  if (PyDict_SetItem(__pyx_t_2, ((PyObject *)__pyx_n_s__initial_len), __pyx_int_10) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 410; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_2)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 410; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_2, ((PyObject *)__pyx_n_s__initial_len), __pyx_int_10) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 413; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_2)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 413; __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);
@@ -41398,17 +41570,17 @@ static int __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory___cinit__(struct __
   __pyx_v_self->findexes = ((struct __pyx_obj_4cdec_2sa_3_sa_IntList *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":411
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":414
  * 
  *         self.findexes = IntList(initial_len=10)
  *         self.findexes1 = IntList(initial_len=10)             # <<<<<<<<<<<<<<
  * 
  *         # Online stats
  */
-  __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 411; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 414; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_1));
-  if (PyDict_SetItem(__pyx_t_1, ((PyObject *)__pyx_n_s__initial_len), __pyx_int_10) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 411; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_t_2 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_1)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 411; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_1, ((PyObject *)__pyx_n_s__initial_len), __pyx_int_10) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 414; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_1)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 414; __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);
@@ -41417,7 +41589,7 @@ static int __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory___cinit__(struct __
   __pyx_v_self->findexes1 = ((struct __pyx_obj_4cdec_2sa_3_sa_IntList *)__pyx_t_2);
   __pyx_t_2 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":416
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":419
  * 
  *         # True after data is added
  *         self.online = False             # <<<<<<<<<<<<<<
@@ -41426,21 +41598,21 @@ static int __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory___cinit__(struct __
  */
   __pyx_v_self->online = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":417
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":420
  *         # True after data is added
  *         self.online = False
  *         self.online_stats = defaultdict(OnlineStats)             # <<<<<<<<<<<<<<
  * 
  *     def configure(self, SuffixArray fsarray, DataArray edarray,
  */
-  __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s__defaultdict); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 417; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s__defaultdict); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 420; __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 = 417; __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 = 420; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_INCREF(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_OnlineStats)));
   PyTuple_SET_ITEM(__pyx_t_1, 0, ((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_OnlineStats)));
   __Pyx_GIVEREF(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_OnlineStats)));
-  __pyx_t_6 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 417; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_6 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 420; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_6);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
@@ -41499,21 +41671,21 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_3configure(Py
         case  1:
         if (likely((values[1] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__edarray)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("configure", 1, 4, 4, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 419; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("configure", 1, 4, 4, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 422; __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, 4, 4, 2); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 419; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("configure", 1, 4, 4, 2); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 422; __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 = 419; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("configure", 1, 4, 4, 3); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 422; __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 = 419; __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 = 422; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else if (PyTuple_GET_SIZE(__pyx_args) != 4) {
       goto __pyx_L5_argtuple_error;
@@ -41530,16 +41702,16 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_3configure(Py
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("configure", 1, 4, 4, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 419; __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 = 422; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_AddTraceback("cdec.sa._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_4cdec_2sa_3_sa_SuffixArray, 1, "fsarray", 0))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 419; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_edarray), __pyx_ptype_4cdec_2sa_3_sa_DataArray, 1, "edarray", 0))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 419; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_sampler), __pyx_ptype_4cdec_2sa_3_sa_Sampler, 1, "sampler", 0))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 420; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_scorer), __pyx_ptype_4cdec_2sa_3_sa_Scorer, 1, "scorer", 0))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 420; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_fsarray), __pyx_ptype_4cdec_2sa_3_sa_SuffixArray, 1, "fsarray", 0))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 422; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_edarray), __pyx_ptype_4cdec_2sa_3_sa_DataArray, 1, "edarray", 0))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 422; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_sampler), __pyx_ptype_4cdec_2sa_3_sa_Sampler, 1, "sampler", 0))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 423; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_scorer), __pyx_ptype_4cdec_2sa_3_sa_Scorer, 1, "scorer", 0))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 423; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_r = __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_2configure(((struct __pyx_obj_4cdec_2sa_3_sa_HieroCachingRuleFactory *)__pyx_v_self), __pyx_v_fsarray, __pyx_v_edarray, __pyx_v_sampler, __pyx_v_scorer);
   goto __pyx_L0;
   __pyx_L1_error:;
@@ -41549,7 +41721,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_3configure(Py
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":419
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":422
  *         self.online_stats = defaultdict(OnlineStats)
  * 
  *     def configure(self, SuffixArray fsarray, DataArray edarray,             # <<<<<<<<<<<<<<
@@ -41567,7 +41739,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_2configure(st
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("configure", 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":424
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":427
  *         Here we also use it to precompute the most expensive intersections
  *         in the corpus quickly.'''
  *         self.fsa = fsarray             # <<<<<<<<<<<<<<
@@ -41580,7 +41752,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_2configure(st
   __Pyx_DECREF(((PyObject *)__pyx_v_self->fsa));
   __pyx_v_self->fsa = __pyx_v_fsarray;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":425
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":428
  *         in the corpus quickly.'''
  *         self.fsa = fsarray
  *         self.fda = fsarray.darray             # <<<<<<<<<<<<<<
@@ -41595,7 +41767,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_2configure(st
   __pyx_v_self->fda = ((struct __pyx_obj_4cdec_2sa_3_sa_DataArray *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":426
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":429
  *         self.fsa = fsarray
  *         self.fda = fsarray.darray
  *         self.eda = edarray             # <<<<<<<<<<<<<<
@@ -41608,7 +41780,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_2configure(st
   __Pyx_DECREF(((PyObject *)__pyx_v_self->eda));
   __pyx_v_self->eda = __pyx_v_edarray;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":427
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":430
  *         self.fda = fsarray.darray
  *         self.eda = edarray
  *         self.fid2symid = self.set_idmap(self.fda)             # <<<<<<<<<<<<<<
@@ -41617,17 +41789,17 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_2configure(st
  */
   __pyx_t_1 = ((PyObject *)__pyx_v_self->fda);
   __Pyx_INCREF(__pyx_t_1);
-  __pyx_t_2 = ((struct __pyx_vtabstruct_4cdec_2sa_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->set_idmap(__pyx_v_self, ((struct __pyx_obj_4cdec_2sa_3_sa_DataArray *)__pyx_t_1)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 427; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = ((struct __pyx_vtabstruct_4cdec_2sa_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->set_idmap(__pyx_v_self, ((struct __pyx_obj_4cdec_2sa_3_sa_DataArray *)__pyx_t_1)); 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_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  if (!(likely(((__pyx_t_2) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_2, __pyx_ptype_4cdec_2sa_3_sa_IntList))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 427; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (!(likely(((__pyx_t_2) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_2, __pyx_ptype_4cdec_2sa_3_sa_IntList))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 430; __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_4cdec_2sa_3_sa_IntList *)__pyx_t_2);
   __pyx_t_2 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":428
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":431
  *         self.eda = edarray
  *         self.fid2symid = self.set_idmap(self.fda)
  *         self.eid2symid = self.set_idmap(self.eda)             # <<<<<<<<<<<<<<
@@ -41636,31 +41808,31 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_2configure(st
  */
   __pyx_t_2 = ((PyObject *)__pyx_v_self->eda);
   __Pyx_INCREF(__pyx_t_2);
-  __pyx_t_1 = ((struct __pyx_vtabstruct_4cdec_2sa_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->set_idmap(__pyx_v_self, ((struct __pyx_obj_4cdec_2sa_3_sa_DataArray *)__pyx_t_2)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 428; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = ((struct __pyx_vtabstruct_4cdec_2sa_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->set_idmap(__pyx_v_self, ((struct __pyx_obj_4cdec_2sa_3_sa_DataArray *)__pyx_t_2)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 431; __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_4cdec_2sa_3_sa_IntList))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 428; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (!(likely(((__pyx_t_1) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_1, __pyx_ptype_4cdec_2sa_3_sa_IntList))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 431; __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_4cdec_2sa_3_sa_IntList *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":429
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":432
  *         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 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self), __pyx_n_s__precompute); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 429; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self), __pyx_n_s__precompute); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 432; __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 = 429; __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 = 432; __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;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":430
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":433
  *         self.eid2symid = self.set_idmap(self.eda)
  *         self.precompute()
  *         self.sampler = sampler             # <<<<<<<<<<<<<<
@@ -41673,7 +41845,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_2configure(st
   __Pyx_DECREF(((PyObject *)__pyx_v_self->sampler));
   __pyx_v_self->sampler = __pyx_v_sampler;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":431
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":434
  *         self.precompute()
  *         self.sampler = sampler
  *         self.scorer = scorer             # <<<<<<<<<<<<<<
@@ -41699,7 +41871,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_2configure(st
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":433
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":436
  *         self.scorer = scorer
  * 
  *     cdef set_idmap(self, DataArray darray):             # <<<<<<<<<<<<<<
@@ -41724,7 +41896,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_set_idmap(CYTH
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("set_idmap", 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":437
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":440
  *         cdef IntList idmap
  * 
  *         N = len(darray.id2word)             # <<<<<<<<<<<<<<
@@ -41733,30 +41905,30 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_set_idmap(CYTH
  */
   __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 = 437; __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 = 440; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __pyx_v_N = __pyx_t_2;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":438
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":441
  * 
  *         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 = 438; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 441; __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 = 438; __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 = 441; __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 = 438; __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 = 441; __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_4cdec_2sa_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_1)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 438; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_1)); 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_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
   __pyx_v_idmap = ((struct __pyx_obj_4cdec_2sa_3_sa_IntList *)__pyx_t_3);
   __pyx_t_3 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":439
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":442
  *         N = len(darray.id2word)
  *         idmap = IntList(initial_len=N)
  *         for word_id from 0 <= word_id < N:             # <<<<<<<<<<<<<<
@@ -41766,20 +41938,20 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_set_idmap(CYTH
   __pyx_t_4 = __pyx_v_N;
   for (__pyx_v_word_id = 0; __pyx_v_word_id < __pyx_t_4; __pyx_v_word_id++) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":440
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":443
  *         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_GetItemInt(__pyx_v_darray->id2word, __pyx_v_word_id, sizeof(int), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 440; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = __Pyx_GetItemInt(__pyx_v_darray->id2word, __pyx_v_word_id, sizeof(int), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 443; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_5 = __Pyx_PyObject_AsString(__pyx_t_3); if (unlikely((!__pyx_t_5) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 440; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = __Pyx_PyObject_AsString(__pyx_t_3); if (unlikely((!__pyx_t_5) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 443; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __pyx_v_new_word_id = __pyx_f_4cdec_2sa_3_sa_sym_fromstring(__pyx_t_5, 1);
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":441
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":444
  *         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             # <<<<<<<<<<<<<<
@@ -41789,7 +41961,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_set_idmap(CYTH
     (__pyx_v_idmap->arr[__pyx_v_word_id]) = __pyx_v_new_word_id;
   }
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":442
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":445
  *             new_word_id = sym_fromstring(darray.id2word[word_id], True)
  *             idmap.arr[word_id] = new_word_id
  *         return idmap             # <<<<<<<<<<<<<<
@@ -41826,7 +41998,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5pattern2phra
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":445
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":448
  * 
  * 
  *     def pattern2phrase(self, pattern):             # <<<<<<<<<<<<<<
@@ -41854,7 +42026,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_4pattern2phra
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("pattern2phrase", 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":447
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":450
  *     def pattern2phrase(self, pattern):
  *         # pattern is a tuple, which we must convert to a hiero Phrase
  *         result = ()             # <<<<<<<<<<<<<<
@@ -41864,7 +42036,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_4pattern2phra
   __Pyx_INCREF(((PyObject *)__pyx_empty_tuple));
   __pyx_v_result = __pyx_empty_tuple;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":448
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":451
  *         # pattern is a tuple, which we must convert to a hiero Phrase
  *         result = ()
  *         arity = 0             # <<<<<<<<<<<<<<
@@ -41874,7 +42046,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_4pattern2phra
   __Pyx_INCREF(__pyx_int_0);
   __pyx_v_arity = __pyx_int_0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":449
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":452
  *         result = ()
  *         arity = 0
  *         for word_id in pattern:             # <<<<<<<<<<<<<<
@@ -41885,7 +42057,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_4pattern2phra
     __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 = 449; __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 = 452; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __pyx_t_3 = Py_TYPE(__pyx_t_1)->tp_iternext;
   }
@@ -41893,23 +42065,23 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_4pattern2phra
     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++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 449; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyList_GET_ITEM(__pyx_t_1, __pyx_t_2); __Pyx_INCREF(__pyx_t_4); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 452; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #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 = 449; __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 = 452; __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++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 449; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyTuple_GET_ITEM(__pyx_t_1, __pyx_t_2); __Pyx_INCREF(__pyx_t_4); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 452; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #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 = 449; __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 = 452; __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 = 449; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 452; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         }
         break;
       }
@@ -41918,73 +42090,73 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_4pattern2phra
     __Pyx_XDECREF_SET(__pyx_v_word_id, __pyx_t_4);
     __pyx_t_4 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":450
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":453
  *         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); __Pyx_XGOTREF(__pyx_t_4); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 450; __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 = 450; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyObject_RichCompare(__pyx_v_word_id, __pyx_int_neg_1, Py_EQ); __Pyx_XGOTREF(__pyx_t_4); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 453; __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 = 453; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     if (__pyx_t_5) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":451
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":454
  *         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 = 451; __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 = 454; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_DECREF_SET(__pyx_v_arity, __pyx_t_4);
       __pyx_t_4 = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":452
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":455
  *             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 = 452; __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 = 455; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __pyx_v_new_id = __pyx_f_4cdec_2sa_3_sa_sym_setindex(__pyx_v_self->category, __pyx_t_6);
       goto __pyx_L5;
     }
     /*else*/ {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":454
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":457
  *                 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 = PyObject_GetItem(__pyx_v_self->fda->id2word, __pyx_v_word_id); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 454; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyObject_GetItem(__pyx_v_self->fda->id2word, __pyx_v_word_id); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 457; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_7 = __Pyx_PyObject_AsString(__pyx_t_4); if (unlikely((!__pyx_t_7) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 454; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_7 = __Pyx_PyObject_AsString(__pyx_t_4); if (unlikely((!__pyx_t_7) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 457; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       __pyx_v_new_id = __pyx_f_4cdec_2sa_3_sa_sym_fromstring(__pyx_t_7, 1);
     }
     __pyx_L5:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":455
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":458
  *             else:
  *                 new_id = sym_fromstring(self.fda.id2word[word_id], True)
  *             result = result + (new_id,)             # <<<<<<<<<<<<<<
  *         return Phrase(result)
  * 
  */
-    __pyx_t_4 = PyInt_FromLong(__pyx_v_new_id); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 455; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyInt_FromLong(__pyx_v_new_id); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 458; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_8 = PyTuple_New(1); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 455; __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 = 458; __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);
     __pyx_t_4 = 0;
-    __pyx_t_4 = PyNumber_Add(((PyObject *)__pyx_v_result), ((PyObject *)__pyx_t_8)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 455; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyNumber_Add(((PyObject *)__pyx_v_result), ((PyObject *)__pyx_t_8)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 458; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(((PyObject *)__pyx_t_4));
     __Pyx_DECREF(((PyObject *)__pyx_t_8)); __pyx_t_8 = 0;
     __Pyx_DECREF_SET(__pyx_v_result, ((PyObject*)__pyx_t_4));
@@ -41992,7 +42164,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_4pattern2phra
   }
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":456
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":459
  *                 new_id = sym_fromstring(self.fda.id2word[word_id], True)
  *             result = result + (new_id,)
  *         return Phrase(result)             # <<<<<<<<<<<<<<
@@ -42000,12 +42172,12 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_4pattern2phra
  *     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 = 456; __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 = 459; __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_4 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_Phrase)), ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 456; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_4 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_Phrase)), ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 459; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_4);
   __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
   __pyx_r = __pyx_t_4;
@@ -42040,7 +42212,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_7pattern2phra
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":458
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":461
  *         return Phrase(result)
  * 
  *     def pattern2phrase_plus(self, pattern):             # <<<<<<<<<<<<<<
@@ -42070,19 +42242,19 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_6pattern2phra
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("pattern2phrase_plus", 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":461
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":464
  *         # 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 = 461; __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 = 464; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_v_patterns = ((PyObject*)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":462
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":465
  *         # suffixed/prefixed with the NT category.
  *         patterns = []
  *         result = ()             # <<<<<<<<<<<<<<
@@ -42092,7 +42264,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_6pattern2phra
   __Pyx_INCREF(((PyObject *)__pyx_empty_tuple));
   __pyx_v_result = __pyx_empty_tuple;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":463
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":466
  *         patterns = []
  *         result = ()
  *         arity = 0             # <<<<<<<<<<<<<<
@@ -42102,7 +42274,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_6pattern2phra
   __Pyx_INCREF(__pyx_int_0);
   __pyx_v_arity = __pyx_int_0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":464
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":467
  *         result = ()
  *         arity = 0
  *         for word_id in pattern:             # <<<<<<<<<<<<<<
@@ -42113,7 +42285,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_6pattern2phra
     __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 = 464; __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 = 467; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __pyx_t_3 = Py_TYPE(__pyx_t_1)->tp_iternext;
   }
@@ -42121,23 +42293,23 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_6pattern2phra
     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++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 464; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyList_GET_ITEM(__pyx_t_1, __pyx_t_2); __Pyx_INCREF(__pyx_t_4); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 467; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #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 = 464; __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 = 467; __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++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 464; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyTuple_GET_ITEM(__pyx_t_1, __pyx_t_2); __Pyx_INCREF(__pyx_t_4); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 467; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #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 = 464; __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 = 467; __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 = 464; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 467; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         }
         break;
       }
@@ -42146,73 +42318,73 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_6pattern2phra
     __Pyx_XDECREF_SET(__pyx_v_word_id, __pyx_t_4);
     __pyx_t_4 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":465
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":468
  *         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); __Pyx_XGOTREF(__pyx_t_4); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 465; __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 = 465; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyObject_RichCompare(__pyx_v_word_id, __pyx_int_neg_1, Py_EQ); __Pyx_XGOTREF(__pyx_t_4); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 468; __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 = 468; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     if (__pyx_t_5) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":466
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":469
  *         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 = 466; __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 = 469; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_DECREF_SET(__pyx_v_arity, __pyx_t_4);
       __pyx_t_4 = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":467
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":470
  *             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 = 467; __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 = 470; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __pyx_v_new_id = __pyx_f_4cdec_2sa_3_sa_sym_setindex(__pyx_v_self->category, __pyx_t_6);
       goto __pyx_L5;
     }
     /*else*/ {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":469
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":472
  *                 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 = PyObject_GetItem(__pyx_v_self->fda->id2word, __pyx_v_word_id); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 469; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyObject_GetItem(__pyx_v_self->fda->id2word, __pyx_v_word_id); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 472; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_7 = __Pyx_PyObject_AsString(__pyx_t_4); if (unlikely((!__pyx_t_7) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 469; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_7 = __Pyx_PyObject_AsString(__pyx_t_4); if (unlikely((!__pyx_t_7) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 472; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       __pyx_v_new_id = __pyx_f_4cdec_2sa_3_sa_sym_fromstring(__pyx_t_7, 1);
     }
     __pyx_L5:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":470
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":473
  *             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_4 = PyInt_FromLong(__pyx_v_new_id); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 470; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyInt_FromLong(__pyx_v_new_id); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 473; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_8 = PyTuple_New(1); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 470; __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 = 473; __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);
     __pyx_t_4 = 0;
-    __pyx_t_4 = PyNumber_Add(((PyObject *)__pyx_v_result), ((PyObject *)__pyx_t_8)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 470; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyNumber_Add(((PyObject *)__pyx_v_result), ((PyObject *)__pyx_t_8)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 473; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(((PyObject *)__pyx_t_4));
     __Pyx_DECREF(((PyObject *)__pyx_t_8)); __pyx_t_8 = 0;
     __Pyx_DECREF_SET(__pyx_v_result, ((PyObject*)__pyx_t_4));
@@ -42220,81 +42392,81 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_6pattern2phra
   }
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":471
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":474
  *                 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 = 471; __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 = 474; __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_4 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_Phrase)), ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 471; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_4 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_Phrase)), ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 474; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_4);
   __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
-  __pyx_t_9 = __Pyx_PyList_Append(__pyx_v_patterns, __pyx_t_4); if (unlikely(__pyx_t_9 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 471; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_9 = __Pyx_PyList_Append(__pyx_v_patterns, __pyx_t_4); if (unlikely(__pyx_t_9 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 474; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":472
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":475
  *             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_4 = PyInt_FromLong(__pyx_f_4cdec_2sa_3_sa_sym_setindex(__pyx_v_self->category, 1)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 472; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_4 = PyInt_FromLong(__pyx_f_4cdec_2sa_3_sa_sym_setindex(__pyx_v_self->category, 1)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 475; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_4);
-  __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 472; __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 = 475; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_t_4);
   __Pyx_GIVEREF(__pyx_t_4);
   __pyx_t_4 = 0;
-  __pyx_t_4 = PyNumber_Add(((PyObject *)__pyx_v_result), ((PyObject *)__pyx_t_1)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 472; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_4 = PyNumber_Add(((PyObject *)__pyx_v_result), ((PyObject *)__pyx_t_1)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 475; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_4));
   __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 = 472; __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 = 475; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   PyTuple_SET_ITEM(__pyx_t_1, 0, ((PyObject *)__pyx_t_4));
   __Pyx_GIVEREF(((PyObject *)__pyx_t_4));
   __pyx_t_4 = 0;
-  __pyx_t_4 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_Phrase)), ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 472; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_4 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_Phrase)), ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 475; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_4);
   __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
-  __pyx_t_9 = __Pyx_PyList_Append(__pyx_v_patterns, __pyx_t_4); if (unlikely(__pyx_t_9 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 472; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_9 = __Pyx_PyList_Append(__pyx_v_patterns, __pyx_t_4); if (unlikely(__pyx_t_9 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 475; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":473
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":476
  *         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_4 = PyInt_FromLong(__pyx_f_4cdec_2sa_3_sa_sym_setindex(__pyx_v_self->category, 1)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 473; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_4 = PyInt_FromLong(__pyx_f_4cdec_2sa_3_sa_sym_setindex(__pyx_v_self->category, 1)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 476; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_4);
-  __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 473; __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 = 476; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_t_4);
   __Pyx_GIVEREF(__pyx_t_4);
   __pyx_t_4 = 0;
-  __pyx_t_4 = PyNumber_Add(((PyObject *)__pyx_t_1), ((PyObject *)__pyx_v_result)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 473; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_4 = PyNumber_Add(((PyObject *)__pyx_t_1), ((PyObject *)__pyx_v_result)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 476; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_4));
   __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 = 473; __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 = 476; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   PyTuple_SET_ITEM(__pyx_t_1, 0, ((PyObject *)__pyx_t_4));
   __Pyx_GIVEREF(((PyObject *)__pyx_t_4));
   __pyx_t_4 = 0;
-  __pyx_t_4 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_Phrase)), ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 473; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_4 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_Phrase)), ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 476; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_4);
   __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
-  __pyx_t_9 = __Pyx_PyList_Append(__pyx_v_patterns, __pyx_t_4); if (unlikely(__pyx_t_9 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 473; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_9 = __Pyx_PyList_Append(__pyx_v_patterns, __pyx_t_4); if (unlikely(__pyx_t_9 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 476; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":474
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":477
  *         patterns.append(Phrase(result + (sym_setindex(self.category, 1),)))
  *         patterns.append(Phrase((sym_setindex(self.category, 1),) + result))
  *         return patterns             # <<<<<<<<<<<<<<
@@ -42335,7 +42507,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_9precompute(P
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":476
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":479
  *         return patterns
  * 
  *     def precompute(self):             # <<<<<<<<<<<<<<
@@ -42370,7 +42542,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_8precompute(s
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("precompute", 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":479
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":482
  *         cdef Precomputation pre
  * 
  *         if self.precompute_file is not None:             # <<<<<<<<<<<<<<
@@ -42381,34 +42553,34 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_8precompute(s
   __pyx_t_2 = (__pyx_t_1 != 0);
   if (__pyx_t_2) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":480
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":483
  * 
  *         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_3 = __Pyx_GetModuleGlobalName(__pyx_n_s__monitor_cpu); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 480; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = __Pyx_GetModuleGlobalName(__pyx_n_s__monitor_cpu); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 483; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_4 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 480; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 483; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __pyx_v_start_time = __pyx_t_4;
     __pyx_t_4 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":481
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":484
  *         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_4 = __Pyx_GetModuleGlobalName(__pyx_n_s__logger); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 481; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = __Pyx_GetModuleGlobalName(__pyx_n_s__logger); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 484; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_4, __pyx_n_s__info); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 481; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_4, __pyx_n_s__info); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 484; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    __pyx_t_4 = PyTuple_New(2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 481; __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 = 484; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_INCREF(((PyObject *)__pyx_kp_s_112));
     PyTuple_SET_ITEM(__pyx_t_4, 0, ((PyObject *)__pyx_kp_s_112));
@@ -42416,29 +42588,29 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_8precompute(s
     __Pyx_INCREF(__pyx_v_self->precompute_file);
     PyTuple_SET_ITEM(__pyx_t_4, 1, __pyx_v_self->precompute_file);
     __Pyx_GIVEREF(__pyx_v_self->precompute_file);
-    __pyx_t_5 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 481; __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[8]; __pyx_lineno = 484; __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;
     __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":482
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":485
  *             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_5 = PyDict_New(); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 482; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyDict_New(); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 485; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(((PyObject *)__pyx_t_5));
-    if (PyDict_SetItem(__pyx_t_5, ((PyObject *)__pyx_n_s__from_binary), __pyx_v_self->precompute_file) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 482; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __pyx_t_4 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_Precomputation)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_5)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 482; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (PyDict_SetItem(__pyx_t_5, ((PyObject *)__pyx_n_s__from_binary), __pyx_v_self->precompute_file) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 485; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_Precomputation)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_5)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 485; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(((PyObject *)__pyx_t_5)); __pyx_t_5 = 0;
     __pyx_v_pre = ((struct __pyx_obj_4cdec_2sa_3_sa_Precomputation *)__pyx_t_4);
     __pyx_t_4 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":484
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":487
  *             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:             # <<<<<<<<<<<<<<
@@ -42448,23 +42620,23 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_8precompute(s
     __pyx_t_2 = ((__pyx_v_pre->max_nonterminals != __pyx_v_self->max_nonterminals) != 0);
     if (__pyx_t_2) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":485
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":488
  *             # 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_4 = __Pyx_GetModuleGlobalName(__pyx_n_s__logger); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 485; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = __Pyx_GetModuleGlobalName(__pyx_n_s__logger); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 488; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_5 = __Pyx_PyObject_GetAttrStr(__pyx_t_4, __pyx_n_s__warn); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 485; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_5 = __Pyx_PyObject_GetAttrStr(__pyx_t_4, __pyx_n_s__warn); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 488; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_5);
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-      __pyx_t_4 = PyInt_FromLong(__pyx_v_pre->max_nonterminals); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 485; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyInt_FromLong(__pyx_v_pre->max_nonterminals); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 488; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_3 = PyInt_FromLong(__pyx_v_self->max_nonterminals); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 485; __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 = 488; __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 = 485; __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 = 488; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_6);
       __Pyx_INCREF(((PyObject *)__pyx_kp_s_113));
       PyTuple_SET_ITEM(__pyx_t_6, 0, ((PyObject *)__pyx_kp_s_113));
@@ -42475,7 +42647,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_8precompute(s
       __Pyx_GIVEREF(__pyx_t_3);
       __pyx_t_4 = 0;
       __pyx_t_3 = 0;
-      __pyx_t_3 = PyObject_Call(__pyx_t_5, ((PyObject *)__pyx_t_6), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 485; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = PyObject_Call(__pyx_t_5, ((PyObject *)__pyx_t_6), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 488; __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_6)); __pyx_t_6 = 0;
@@ -42484,7 +42656,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_8precompute(s
     }
     __pyx_L4:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":486
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":489
  *             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:             # <<<<<<<<<<<<<<
@@ -42494,23 +42666,23 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_8precompute(s
     __pyx_t_2 = ((__pyx_v_pre->max_length != __pyx_v_self->max_length) != 0);
     if (__pyx_t_2) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":487
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":490
  *                 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_GetModuleGlobalName(__pyx_n_s__logger); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 487; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = __Pyx_GetModuleGlobalName(__pyx_n_s__logger); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 490; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
-      __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_t_3, __pyx_n_s__warn); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 487; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_t_3, __pyx_n_s__warn); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 490; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_6);
       __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 = 487; __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 = 490; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
-      __pyx_t_5 = PyInt_FromLong(__pyx_v_self->max_length); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 487; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_5 = PyInt_FromLong(__pyx_v_self->max_length); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 490; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_5);
-      __pyx_t_4 = PyTuple_New(3); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 487; __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 = 490; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_INCREF(((PyObject *)__pyx_kp_s_114));
       PyTuple_SET_ITEM(__pyx_t_4, 0, ((PyObject *)__pyx_kp_s_114));
@@ -42521,7 +42693,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_8precompute(s
       __Pyx_GIVEREF(__pyx_t_5);
       __pyx_t_3 = 0;
       __pyx_t_5 = 0;
-      __pyx_t_5 = PyObject_Call(__pyx_t_6, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 487; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_5 = PyObject_Call(__pyx_t_6, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 490; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_5);
       __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
       __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
@@ -42530,7 +42702,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_8precompute(s
     }
     __pyx_L5:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":488
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":491
  *             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:             # <<<<<<<<<<<<<<
@@ -42540,18 +42712,18 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_8precompute(s
     __pyx_t_2 = ((__pyx_v_pre->train_max_initial_size != __pyx_v_self->train_max_initial_size) != 0);
     if (__pyx_t_2) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":489
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":492
  *                 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_5 = PyInt_FromLong(__pyx_v_pre->train_max_initial_size); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 489; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_5 = PyInt_FromLong(__pyx_v_pre->train_max_initial_size); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 492; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_5);
-      __pyx_t_4 = PyInt_FromLong(__pyx_v_self->train_max_initial_size); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 489; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyInt_FromLong(__pyx_v_self->train_max_initial_size); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 492; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_6 = PyTuple_New(2); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 489; __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 = 492; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_6);
       PyTuple_SET_ITEM(__pyx_t_6, 0, __pyx_t_5);
       __Pyx_GIVEREF(__pyx_t_5);
@@ -42559,25 +42731,25 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_8precompute(s
       __Pyx_GIVEREF(__pyx_t_4);
       __pyx_t_5 = 0;
       __pyx_t_4 = 0;
-      __pyx_t_4 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_115), ((PyObject *)__pyx_t_6)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 489; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_115), ((PyObject *)__pyx_t_6)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 492; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(((PyObject *)__pyx_t_4));
       __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[8]; __pyx_lineno = 489; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = PyTuple_New(1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 492; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_6);
       PyTuple_SET_ITEM(__pyx_t_6, 0, ((PyObject *)__pyx_t_4));
       __Pyx_GIVEREF(((PyObject *)__pyx_t_4));
       __pyx_t_4 = 0;
-      __pyx_t_4 = PyObject_Call(__pyx_builtin_Exception, ((PyObject *)__pyx_t_6), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 489; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyObject_Call(__pyx_builtin_Exception, ((PyObject *)__pyx_t_6), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 492; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_DECREF(((PyObject *)__pyx_t_6)); __pyx_t_6 = 0;
       __Pyx_Raise(__pyx_t_4, 0, 0, 0);
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-      {__pyx_filename = __pyx_f[8]; __pyx_lineno = 489; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      {__pyx_filename = __pyx_f[8]; __pyx_lineno = 492; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       goto __pyx_L6;
     }
     __pyx_L6:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":490
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":493
  *             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:             # <<<<<<<<<<<<<<
@@ -42587,18 +42759,18 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_8precompute(s
     __pyx_t_2 = ((__pyx_v_pre->train_min_gap_size != __pyx_v_self->train_min_gap_size) != 0);
     if (__pyx_t_2) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":491
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":494
  *                 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_4 = PyInt_FromLong(__pyx_v_pre->train_min_gap_size); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 491; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyInt_FromLong(__pyx_v_pre->train_min_gap_size); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 494; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_6 = PyInt_FromLong(__pyx_v_self->train_min_gap_size); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 491; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = PyInt_FromLong(__pyx_v_self->train_min_gap_size); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 494; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_6);
-      __pyx_t_5 = PyTuple_New(2); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 491; __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 = 494; __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);
@@ -42606,25 +42778,25 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_8precompute(s
       __Pyx_GIVEREF(__pyx_t_6);
       __pyx_t_4 = 0;
       __pyx_t_6 = 0;
-      __pyx_t_6 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_116), ((PyObject *)__pyx_t_5)); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 491; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_116), ((PyObject *)__pyx_t_5)); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 494; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(((PyObject *)__pyx_t_6));
       __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 = 491; __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 = 494; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_5);
       PyTuple_SET_ITEM(__pyx_t_5, 0, ((PyObject *)__pyx_t_6));
       __Pyx_GIVEREF(((PyObject *)__pyx_t_6));
       __pyx_t_6 = 0;
-      __pyx_t_6 = PyObject_Call(__pyx_builtin_Exception, ((PyObject *)__pyx_t_5), NULL); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 491; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = PyObject_Call(__pyx_builtin_Exception, ((PyObject *)__pyx_t_5), NULL); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 494; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_6);
       __Pyx_DECREF(((PyObject *)__pyx_t_5)); __pyx_t_5 = 0;
       __Pyx_Raise(__pyx_t_6, 0, 0, 0);
       __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-      {__pyx_filename = __pyx_f[8]; __pyx_lineno = 491; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      {__pyx_filename = __pyx_f[8]; __pyx_lineno = 494; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       goto __pyx_L7;
     }
     __pyx_L7:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":492
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":495
  *             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:             # <<<<<<<<<<<<<<
@@ -42634,25 +42806,25 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_8precompute(s
     __pyx_t_2 = (__pyx_v_self->use_index != 0);
     if (__pyx_t_2) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":493
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":496
  *                 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_6 = __Pyx_GetModuleGlobalName(__pyx_n_s__logger); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 493; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = __Pyx_GetModuleGlobalName(__pyx_n_s__logger); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 496; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_6);
-      __pyx_t_5 = __Pyx_PyObject_GetAttrStr(__pyx_t_6, __pyx_n_s__info); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 493; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_5 = __Pyx_PyObject_GetAttrStr(__pyx_t_6, __pyx_n_s__info); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 496; __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_v_pre->precomputed_index;
       __Pyx_INCREF(__pyx_t_6);
-      __pyx_t_7 = PyObject_Length(__pyx_t_6); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 493; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_7 = PyObject_Length(__pyx_t_6); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 496; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-      __pyx_t_6 = PyInt_FromSsize_t(__pyx_t_7); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 493; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = PyInt_FromSsize_t(__pyx_t_7); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 496; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_6);
-      __pyx_t_4 = PyTuple_New(2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 493; __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 = 496; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_INCREF(((PyObject *)__pyx_kp_s_117));
       PyTuple_SET_ITEM(__pyx_t_4, 0, ((PyObject *)__pyx_kp_s_117));
@@ -42660,13 +42832,13 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_8precompute(s
       PyTuple_SET_ITEM(__pyx_t_4, 1, __pyx_t_6);
       __Pyx_GIVEREF(__pyx_t_6);
       __pyx_t_6 = 0;
-      __pyx_t_6 = PyObject_Call(__pyx_t_5, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 493; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = PyObject_Call(__pyx_t_5, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 496; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_6);
       __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
       __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
       __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":494
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":497
  *             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():             # <<<<<<<<<<<<<<
@@ -42676,9 +42848,9 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_8precompute(s
       __pyx_t_7 = 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 = 494; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 497; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       }
-      __pyx_t_4 = __Pyx_dict_iterator(__pyx_v_pre->precomputed_index, 0, ((PyObject *)__pyx_n_s__iteritems), (&__pyx_t_8), (&__pyx_t_9)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 494; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = __Pyx_dict_iterator(__pyx_v_pre->precomputed_index, 0, ((PyObject *)__pyx_n_s__iteritems), (&__pyx_t_8), (&__pyx_t_9)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 497; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_XDECREF(__pyx_t_6);
       __pyx_t_6 = __pyx_t_4;
@@ -42686,7 +42858,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_8precompute(s
       while (1) {
         __pyx_t_10 = __Pyx_dict_iter_next(__pyx_t_6, __pyx_t_8, &__pyx_t_7, &__pyx_t_4, &__pyx_t_5, NULL, __pyx_t_9);
         if (unlikely(__pyx_t_10 == 0)) break;
-        if (unlikely(__pyx_t_10 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 494; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        if (unlikely(__pyx_t_10 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 497; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_4);
         __Pyx_GOTREF(__pyx_t_5);
         __Pyx_XDECREF_SET(__pyx_v_pattern, __pyx_t_4);
@@ -42694,28 +42866,28 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_8precompute(s
         __Pyx_XDECREF_SET(__pyx_v_arr, __pyx_t_5);
         __pyx_t_5 = 0;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":495
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":498
  *                 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_5 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self), __pyx_n_s__pattern2phrase_plus); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 495; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_5 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self), __pyx_n_s__pattern2phrase_plus); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 498; __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[8]; __pyx_lineno = 495; __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 = 498; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_4);
         __Pyx_INCREF(__pyx_v_pattern);
         PyTuple_SET_ITEM(__pyx_t_4, 0, __pyx_v_pattern);
         __Pyx_GIVEREF(__pyx_v_pattern);
-        __pyx_t_3 = PyObject_Call(__pyx_t_5, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 495; __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[8]; __pyx_lineno = 498; __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;
         __Pyx_XDECREF_SET(__pyx_v_phrases, __pyx_t_3);
         __pyx_t_3 = 0;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":496
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":499
  *                 for pattern, arr in pre.precomputed_index.iteritems():
  *                     phrases = self.pattern2phrase_plus(pattern)
  *                     for phrase in phrases:             # <<<<<<<<<<<<<<
@@ -42726,7 +42898,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_8precompute(s
           __pyx_t_3 = __pyx_v_phrases; __Pyx_INCREF(__pyx_t_3); __pyx_t_11 = 0;
           __pyx_t_12 = NULL;
         } else {
-          __pyx_t_11 = -1; __pyx_t_3 = PyObject_GetIter(__pyx_v_phrases); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 496; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_11 = -1; __pyx_t_3 = PyObject_GetIter(__pyx_v_phrases); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 499; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_3);
           __pyx_t_12 = Py_TYPE(__pyx_t_3)->tp_iternext;
         }
@@ -42734,23 +42906,23 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_8precompute(s
           if (!__pyx_t_12 && PyList_CheckExact(__pyx_t_3)) {
             if (__pyx_t_11 >= PyList_GET_SIZE(__pyx_t_3)) break;
             #if CYTHON_COMPILING_IN_CPYTHON
-            __pyx_t_4 = PyList_GET_ITEM(__pyx_t_3, __pyx_t_11); __Pyx_INCREF(__pyx_t_4); __pyx_t_11++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 496; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_4 = PyList_GET_ITEM(__pyx_t_3, __pyx_t_11); __Pyx_INCREF(__pyx_t_4); __pyx_t_11++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 499; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             #else
-            __pyx_t_4 = PySequence_ITEM(__pyx_t_3, __pyx_t_11); __pyx_t_11++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 496; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_4 = PySequence_ITEM(__pyx_t_3, __pyx_t_11); __pyx_t_11++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 499; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             #endif
           } else if (!__pyx_t_12 && PyTuple_CheckExact(__pyx_t_3)) {
             if (__pyx_t_11 >= PyTuple_GET_SIZE(__pyx_t_3)) break;
             #if CYTHON_COMPILING_IN_CPYTHON
-            __pyx_t_4 = PyTuple_GET_ITEM(__pyx_t_3, __pyx_t_11); __Pyx_INCREF(__pyx_t_4); __pyx_t_11++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 496; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_4 = PyTuple_GET_ITEM(__pyx_t_3, __pyx_t_11); __Pyx_INCREF(__pyx_t_4); __pyx_t_11++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 499; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             #else
-            __pyx_t_4 = PySequence_ITEM(__pyx_t_3, __pyx_t_11); __pyx_t_11++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 496; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_4 = PySequence_ITEM(__pyx_t_3, __pyx_t_11); __pyx_t_11++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 499; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             #endif
           } else {
             __pyx_t_4 = __pyx_t_12(__pyx_t_3);
             if (unlikely(!__pyx_t_4)) {
               if (PyErr_Occurred()) {
                 if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-                else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 496; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 499; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               }
               break;
             }
@@ -42759,14 +42931,14 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_8precompute(s
           __Pyx_XDECREF_SET(__pyx_v_phrase, __pyx_t_4);
           __pyx_t_4 = 0;
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":497
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":500
  *                     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 = 497; __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 = 500; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         }
         __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       }
@@ -42775,7 +42947,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_8precompute(s
     }
     __pyx_L8:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":498
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":501
  *                     for phrase in phrases:
  *                         self.precomputed_index[phrase] = arr
  *             if self.use_collocations:             # <<<<<<<<<<<<<<
@@ -42785,25 +42957,25 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_8precompute(s
     __pyx_t_2 = (__pyx_v_self->use_collocations != 0);
     if (__pyx_t_2) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":499
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":502
  *                         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_6 = __Pyx_GetModuleGlobalName(__pyx_n_s__logger); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 499; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = __Pyx_GetModuleGlobalName(__pyx_n_s__logger); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 502; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_6);
-      __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_6, __pyx_n_s__info); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 499; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_6, __pyx_n_s__info); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 502; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
       __pyx_t_6 = __pyx_v_pre->precomputed_collocations;
       __Pyx_INCREF(__pyx_t_6);
-      __pyx_t_8 = PyObject_Length(__pyx_t_6); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 499; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = PyObject_Length(__pyx_t_6); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 502; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-      __pyx_t_6 = PyInt_FromSsize_t(__pyx_t_8); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 499; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = PyInt_FromSsize_t(__pyx_t_8); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 502; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_6);
-      __pyx_t_4 = PyTuple_New(2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 499; __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 = 502; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_INCREF(((PyObject *)__pyx_kp_s_118));
       PyTuple_SET_ITEM(__pyx_t_4, 0, ((PyObject *)__pyx_kp_s_118));
@@ -42811,13 +42983,13 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_8precompute(s
       PyTuple_SET_ITEM(__pyx_t_4, 1, __pyx_t_6);
       __Pyx_GIVEREF(__pyx_t_6);
       __pyx_t_6 = 0;
-      __pyx_t_6 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 499; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 502; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_6);
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
       __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":500
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":503
  *             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():             # <<<<<<<<<<<<<<
@@ -42827,9 +42999,9 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_8precompute(s
       __pyx_t_8 = 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 = 500; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 503; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       }
-      __pyx_t_4 = __Pyx_dict_iterator(__pyx_v_pre->precomputed_collocations, 0, ((PyObject *)__pyx_n_s__iteritems), (&__pyx_t_7), (&__pyx_t_9)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 500; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = __Pyx_dict_iterator(__pyx_v_pre->precomputed_collocations, 0, ((PyObject *)__pyx_n_s__iteritems), (&__pyx_t_7), (&__pyx_t_9)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 503; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_XDECREF(__pyx_t_6);
       __pyx_t_6 = __pyx_t_4;
@@ -42837,7 +43009,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_8precompute(s
       while (1) {
         __pyx_t_10 = __Pyx_dict_iter_next(__pyx_t_6, __pyx_t_7, &__pyx_t_8, &__pyx_t_4, &__pyx_t_3, NULL, __pyx_t_9);
         if (unlikely(__pyx_t_10 == 0)) break;
-        if (unlikely(__pyx_t_10 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 500; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        if (unlikely(__pyx_t_10 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 503; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_4);
         __Pyx_GOTREF(__pyx_t_3);
         __Pyx_XDECREF_SET(__pyx_v_pattern, __pyx_t_4);
@@ -42845,71 +43017,71 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_8precompute(s
         __Pyx_XDECREF_SET(__pyx_v_arr, __pyx_t_3);
         __pyx_t_3 = 0;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":501
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":504
  *                 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 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self), __pyx_n_s__pattern2phrase); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 501; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_3 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self), __pyx_n_s__pattern2phrase); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 504; __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[8]; __pyx_lineno = 501; __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 = 504; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_4);
         __Pyx_INCREF(__pyx_v_pattern);
         PyTuple_SET_ITEM(__pyx_t_4, 0, __pyx_v_pattern);
         __Pyx_GIVEREF(__pyx_v_pattern);
-        __pyx_t_5 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 501; __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[8]; __pyx_lineno = 504; __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;
         __Pyx_XDECREF_SET(__pyx_v_phrase, __pyx_t_5);
         __pyx_t_5 = 0;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":502
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":505
  *                 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 = 502; __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 = 505; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       }
       __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
       goto __pyx_L13;
     }
     __pyx_L13:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":503
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":506
  *                     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_6 = __Pyx_GetModuleGlobalName(__pyx_n_s__monitor_cpu); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 503; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = __Pyx_GetModuleGlobalName(__pyx_n_s__monitor_cpu); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 506; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
-    __pyx_t_5 = PyObject_Call(__pyx_t_6, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 503; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyObject_Call(__pyx_t_6, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 506; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
     __pyx_v_stop_time = __pyx_t_5;
     __pyx_t_5 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":504
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":507
  *                     self.precomputed_collocations[phrase] = arr
  *             stop_time = monitor_cpu()
  *             logger.info("Processing precomputations took %f seconds", stop_time - start_time)             # <<<<<<<<<<<<<<
  * 
  * 
  */
-    __pyx_t_5 = __Pyx_GetModuleGlobalName(__pyx_n_s__logger); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 504; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = __Pyx_GetModuleGlobalName(__pyx_n_s__logger); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 507; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
-    __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_t_5, __pyx_n_s__info); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 504; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_t_5, __pyx_n_s__info); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 507; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
     __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 = 504; __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 = 507; __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 = 504; __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 = 507; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_INCREF(((PyObject *)__pyx_kp_s_119));
     PyTuple_SET_ITEM(__pyx_t_4, 0, ((PyObject *)__pyx_kp_s_119));
@@ -42917,7 +43089,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_8precompute(s
     PyTuple_SET_ITEM(__pyx_t_4, 1, __pyx_t_5);
     __Pyx_GIVEREF(__pyx_t_5);
     __pyx_t_5 = 0;
-    __pyx_t_5 = PyObject_Call(__pyx_t_6, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 504; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyObject_Call(__pyx_t_6, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 507; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
     __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
@@ -42959,7 +43131,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_11get_precomp
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":507
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":510
  * 
  * 
  *     def get_precomputed_collocation(self, phrase):             # <<<<<<<<<<<<<<
@@ -42982,30 +43154,30 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_10get_precomp
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("get_precomputed_collocation", 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":508
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":511
  * 
  *     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 = (__Pyx_PySequence_Contains(__pyx_v_phrase, __pyx_v_self->precomputed_collocations, Py_EQ)); if (unlikely(__pyx_t_1 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 508; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = (__Pyx_PySequence_Contains(__pyx_v_phrase, __pyx_v_self->precomputed_collocations, Py_EQ)); if (unlikely(__pyx_t_1 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 511; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_t_2 = (__pyx_t_1 != 0);
   if (__pyx_t_2) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":509
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":512
  *     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_3 = PyObject_GetItem(__pyx_v_self->precomputed_collocations, __pyx_v_phrase); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 509; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_GetItem(__pyx_v_self->precomputed_collocations, __pyx_v_phrase); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 512; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     __pyx_v_arr = __pyx_t_3;
     __pyx_t_3 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":510
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":513
  *         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)             # <<<<<<<<<<<<<<
@@ -43013,26 +43185,26 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_10get_precomp
  * 
  */
     __Pyx_XDECREF(__pyx_r);
-    __pyx_t_3 = PyDict_New(); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 510; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyDict_New(); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 513; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(((PyObject *)__pyx_t_3));
-    if (PyDict_SetItem(__pyx_t_3, ((PyObject *)__pyx_n_s__arr), __pyx_v_arr) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 510; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    if (PyDict_SetItem(__pyx_t_3, ((PyObject *)__pyx_n_s__arr_low), __pyx_int_0) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 510; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __pyx_t_4 = PyObject_Length(__pyx_v_arr); if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 510; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __pyx_t_5 = PyInt_FromSsize_t(__pyx_t_4); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 510; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (PyDict_SetItem(__pyx_t_3, ((PyObject *)__pyx_n_s__arr), __pyx_v_arr) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 513; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (PyDict_SetItem(__pyx_t_3, ((PyObject *)__pyx_n_s__arr_low), __pyx_int_0) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 513; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyObject_Length(__pyx_v_arr); if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 513; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyInt_FromSsize_t(__pyx_t_4); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 513; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
-    if (PyDict_SetItem(__pyx_t_3, ((PyObject *)__pyx_n_s__arr_high), __pyx_t_5) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 510; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (PyDict_SetItem(__pyx_t_3, ((PyObject *)__pyx_n_s__arr_high), __pyx_t_5) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 513; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-    __pyx_t_5 = __Pyx_PyObject_GetAttrStr(__pyx_v_phrase, __pyx_n_s__arity); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 510; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = __Pyx_PyObject_GetAttrStr(__pyx_v_phrase, __pyx_n_s__arity); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 513; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
-    __pyx_t_6 = PyObject_Call(__pyx_t_5, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 510; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = PyObject_Call(__pyx_t_5, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 513; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-    __pyx_t_5 = PyNumber_Add(__pyx_t_6, __pyx_int_1); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 510; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyNumber_Add(__pyx_t_6, __pyx_int_1); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 513; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-    if (PyDict_SetItem(__pyx_t_3, ((PyObject *)__pyx_n_s__num_subpatterns), __pyx_t_5) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 510; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (PyDict_SetItem(__pyx_t_3, ((PyObject *)__pyx_n_s__num_subpatterns), __pyx_t_5) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 513; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-    __pyx_t_5 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_PhraseLocation)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_3)); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 510; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_PhraseLocation)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_3)); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 513; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
     __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
     __pyx_r = __pyx_t_5;
@@ -43042,7 +43214,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_10get_precomp
   }
   __pyx_L3:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":511
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":514
  *             arr = self.precomputed_collocations[phrase]
  *             return PhraseLocation(arr=arr, arr_low=0, arr_high=len(arr), num_subpatterns=phrase.arity()+1)
  *         return None             # <<<<<<<<<<<<<<
@@ -43069,7 +43241,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_10get_precomp
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":514
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":517
  * 
  * 
  *     cdef int* baeza_yates_helper(self, int low1, int high1, int* arr1, int step1,             # <<<<<<<<<<<<<<
@@ -43115,7 +43287,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("baeza_yates_helper", 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":527
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":530
  *         cdef Matching loc1, loc2
  * 
  *         result = <int*> malloc(0*sizeof(int*))             # <<<<<<<<<<<<<<
@@ -43124,7 +43296,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
   __pyx_v_result = ((int *)malloc((0 * (sizeof(int *)))));
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":529
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":532
  *         result = <int*> malloc(0*sizeof(int*))
  * 
  *         d_first = 0             # <<<<<<<<<<<<<<
@@ -43133,7 +43305,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
   __pyx_v_d_first = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":530
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":533
  * 
  *         d_first = 0
  *         if high1 - low1 > high2 - low2:             # <<<<<<<<<<<<<<
@@ -43143,7 +43315,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
   __pyx_t_1 = (((__pyx_v_high1 - __pyx_v_low1) > (__pyx_v_high2 - __pyx_v_low2)) != 0);
   if (__pyx_t_1) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":531
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":534
  *         d_first = 0
  *         if high1 - low1 > high2 - low2:
  *             d_first = 1             # <<<<<<<<<<<<<<
@@ -43155,7 +43327,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
   }
   __pyx_L3:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":535
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":538
  *         # 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:             # <<<<<<<<<<<<<<
@@ -43171,7 +43343,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
   }
   if (__pyx_t_3) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":536
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":539
  *         # Case 1: one of the sets is empty
  *         if low1 >= high1 or low2 >= high2:
  *             return result             # <<<<<<<<<<<<<<
@@ -43184,7 +43356,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
   }
   __pyx_L4:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":539
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":542
  * 
  *         # Case 2: sets are non-overlapping
  *         assign_matching(&loc1, arr1, high1-step1, step1, self.fda.sent_id.arr)             # <<<<<<<<<<<<<<
@@ -43193,7 +43365,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
   __pyx_f_4cdec_2sa_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);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":540
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":543
  *         # 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)             # <<<<<<<<<<<<<<
@@ -43202,7 +43374,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
   __pyx_f_4cdec_2sa_3_sa_assign_matching((&__pyx_v_loc2), __pyx_v_arr2, __pyx_v_low2, __pyx_v_step2, __pyx_v_self->fda->sent_id->arr);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":541
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":544
  *         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:             # <<<<<<<<<<<<<<
@@ -43212,7 +43384,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
   __pyx_t_3 = ((((struct __pyx_vtabstruct_4cdec_2sa_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) != 0);
   if (__pyx_t_3) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":542
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":545
  *         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             # <<<<<<<<<<<<<<
@@ -43225,7 +43397,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
   }
   __pyx_L5:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":544
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":547
  *             return result
  * 
  *         assign_matching(&loc1, arr1, low1, step1, self.fda.sent_id.arr)             # <<<<<<<<<<<<<<
@@ -43234,7 +43406,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
   __pyx_f_4cdec_2sa_3_sa_assign_matching((&__pyx_v_loc1), __pyx_v_arr1, __pyx_v_low1, __pyx_v_step1, __pyx_v_self->fda->sent_id->arr);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":545
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":548
  * 
  *         assign_matching(&loc1, arr1, low1, step1, self.fda.sent_id.arr)
  *         assign_matching(&loc2, arr2, high2-step2, step2, self.fda.sent_id.arr)             # <<<<<<<<<<<<<<
@@ -43243,7 +43415,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
   __pyx_f_4cdec_2sa_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);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":546
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":549
  *         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:             # <<<<<<<<<<<<<<
@@ -43253,7 +43425,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
   __pyx_t_3 = ((((struct __pyx_vtabstruct_4cdec_2sa_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) != 0);
   if (__pyx_t_3) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":547
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":550
  *         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             # <<<<<<<<<<<<<<
@@ -43266,7 +43438,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
   }
   __pyx_L6:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":551
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":554
  *         # Case 3: query set and data set do not meet size mismatch constraints;
  *         # We use mergesort instead in this case
  *         qsetsize = (high1-low1) / step1             # <<<<<<<<<<<<<<
@@ -43282,7 +43454,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
     #ifdef WITH_THREAD
     PyGILState_Release(__pyx_gilstate_save);
     #endif
-    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 551; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 554; __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))) {
     #ifdef WITH_THREAD
@@ -43292,11 +43464,11 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
     #ifdef WITH_THREAD
     PyGILState_Release(__pyx_gilstate_save);
     #endif
-    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 551; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 554; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   }
   __pyx_v_qsetsize = __Pyx_div_int(__pyx_t_4, __pyx_v_step1);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":552
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":555
  *         # We use mergesort instead in this case
  *         qsetsize = (high1-low1) / step1
  *         dsetsize = (high2-low2) / step2             # <<<<<<<<<<<<<<
@@ -43312,7 +43484,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
     #ifdef WITH_THREAD
     PyGILState_Release(__pyx_gilstate_save);
     #endif
-    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 552; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 555; __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))) {
     #ifdef WITH_THREAD
@@ -43322,11 +43494,11 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
     #ifdef WITH_THREAD
     PyGILState_Release(__pyx_gilstate_save);
     #endif
-    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 552; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 555; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   }
   __pyx_v_dsetsize = __Pyx_div_int(__pyx_t_4, __pyx_v_step2);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":553
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":556
  *         qsetsize = (high1-low1) / step1
  *         dsetsize = (high2-low2) / step2
  *         if d_first:             # <<<<<<<<<<<<<<
@@ -43336,7 +43508,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
   __pyx_t_3 = (__pyx_v_d_first != 0);
   if (__pyx_t_3) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":554
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":557
  *         dsetsize = (high2-low2) / step2
  *         if d_first:
  *             tmp = qsetsize             # <<<<<<<<<<<<<<
@@ -43345,7 +43517,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
     __pyx_v_tmp = __pyx_v_qsetsize;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":555
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":558
  *         if d_first:
  *             tmp = qsetsize
  *             qsetsize = dsetsize             # <<<<<<<<<<<<<<
@@ -43354,7 +43526,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
     __pyx_v_qsetsize = __pyx_v_dsetsize;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":556
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":559
  *             tmp = qsetsize
  *             qsetsize = dsetsize
  *             dsetsize = tmp             # <<<<<<<<<<<<<<
@@ -43366,7 +43538,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
   }
   __pyx_L7:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":558
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":561
  *             dsetsize = tmp
  * 
  *         if self.by_slack_factor * qsetsize * log(dsetsize) / log(2) > dsetsize:             # <<<<<<<<<<<<<<
@@ -43383,12 +43555,12 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
     #ifdef WITH_THREAD
     PyGILState_Release(__pyx_gilstate_save);
     #endif
-    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 558; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 561; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   }
   __pyx_t_3 = (((__pyx_t_5 / __pyx_t_6) > __pyx_v_dsetsize) != 0);
   if (__pyx_t_3) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":559
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":562
  * 
  *         if self.by_slack_factor * qsetsize * log(dsetsize) / log(2) > dsetsize:
  *             free(result)             # <<<<<<<<<<<<<<
@@ -43397,7 +43569,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
     free(__pyx_v_result);
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":560
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":563
  *         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)             # <<<<<<<<<<<<<<
@@ -43410,7 +43582,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
   }
   __pyx_L8:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":564
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":567
  *         # binary search.    There are two flavors, depending on
  *         # whether the queryset or dataset is first
  *         if d_first:             # <<<<<<<<<<<<<<
@@ -43420,7 +43592,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
   __pyx_t_3 = (__pyx_v_d_first != 0);
   if (__pyx_t_3) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":565
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":568
  *         # whether the queryset or dataset is first
  *         if d_first:
  *             med2 = median(low2, high2, step2)             # <<<<<<<<<<<<<<
@@ -43429,7 +43601,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
     __pyx_v_med2 = __pyx_f_4cdec_2sa_3_sa_median(__pyx_v_low2, __pyx_v_high2, __pyx_v_step2);
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":566
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":569
  *         if d_first:
  *             med2 = median(low2, high2, step2)
  *             assign_matching(&loc2, arr2, med2, step2, self.fda.sent_id.arr)             # <<<<<<<<<<<<<<
@@ -43438,7 +43610,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
     __pyx_f_4cdec_2sa_3_sa_assign_matching((&__pyx_v_loc2), __pyx_v_arr2, __pyx_v_med2, __pyx_v_step2, __pyx_v_self->fda->sent_id->arr);
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":568
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":571
  *             assign_matching(&loc2, arr2, med2, step2, self.fda.sent_id.arr)
  * 
  *             search_low = low1             # <<<<<<<<<<<<<<
@@ -43447,7 +43619,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
     __pyx_v_search_low = __pyx_v_low1;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":569
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":572
  * 
  *             search_low = low1
  *             search_high = high1             # <<<<<<<<<<<<<<
@@ -43456,7 +43628,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
     __pyx_v_search_high = __pyx_v_high1;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":570
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":573
  *             search_low = low1
  *             search_high = high1
  *             while search_low < search_high:             # <<<<<<<<<<<<<<
@@ -43467,7 +43639,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
       __pyx_t_3 = ((__pyx_v_search_low < __pyx_v_search_high) != 0);
       if (!__pyx_t_3) break;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":571
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":574
  *             search_high = high1
  *             while search_low < search_high:
  *                 med1 = median(search_low, search_high, step1)             # <<<<<<<<<<<<<<
@@ -43476,7 +43648,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
       __pyx_v_med1 = __pyx_f_4cdec_2sa_3_sa_median(__pyx_v_search_low, __pyx_v_search_high, __pyx_v_step1);
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":572
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":575
  *             while search_low < search_high:
  *                 med1 = median(search_low, search_high, step1)
  *                 find_comparable_matchings(low1, high1, arr1, step1, med1, &med1_minus, &med1_plus)             # <<<<<<<<<<<<<<
@@ -43485,7 +43657,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
       __pyx_f_4cdec_2sa_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));
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":573
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":576
  *                 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)             # <<<<<<<<<<<<<<
@@ -43494,7 +43666,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
       __pyx_v_comparison = ((struct __pyx_vtabstruct_4cdec_2sa_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);
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":576
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":579
  *                 if comparison == -1:
  *                     search_low = med1_plus
  *                 elif comparison == 1:             # <<<<<<<<<<<<<<
@@ -43503,7 +43675,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
       switch (__pyx_v_comparison) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":574
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":577
  *                 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:             # <<<<<<<<<<<<<<
@@ -43512,7 +43684,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
         case -1:
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":575
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":578
  *                 comparison = self.compare_matchings_set(med1_minus, med1_plus, arr1, step1, &loc2, offset_by_one, len_last)
  *                 if comparison == -1:
  *                     search_low = med1_plus             # <<<<<<<<<<<<<<
@@ -43522,7 +43694,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
         __pyx_v_search_low = __pyx_v_med1_plus;
         break;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":576
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":579
  *                 if comparison == -1:
  *                     search_low = med1_plus
  *                 elif comparison == 1:             # <<<<<<<<<<<<<<
@@ -43531,7 +43703,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
         case 1:
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":577
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":580
  *                     search_low = med1_plus
  *                 elif comparison == 1:
  *                     search_high = med1_minus             # <<<<<<<<<<<<<<
@@ -43542,7 +43714,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
         break;
         default:
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":579
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":582
  *                     search_high = med1_minus
  *                 else:
  *                     break             # <<<<<<<<<<<<<<
@@ -43558,7 +43730,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
   }
   /*else*/ {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":581
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":584
  *                     break
  *         else:
  *             med1 = median(low1, high1, step1)             # <<<<<<<<<<<<<<
@@ -43567,7 +43739,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
     __pyx_v_med1 = __pyx_f_4cdec_2sa_3_sa_median(__pyx_v_low1, __pyx_v_high1, __pyx_v_step1);
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":582
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":585
  *         else:
  *             med1 = median(low1, high1, step1)
  *             find_comparable_matchings(low1, high1, arr1, step1, med1, &med1_minus, &med1_plus)             # <<<<<<<<<<<<<<
@@ -43576,7 +43748,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
     __pyx_f_4cdec_2sa_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));
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":584
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":587
  *             find_comparable_matchings(low1, high1, arr1, step1, med1, &med1_minus, &med1_plus)
  * 
  *             search_low = low2             # <<<<<<<<<<<<<<
@@ -43585,7 +43757,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
     __pyx_v_search_low = __pyx_v_low2;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":585
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":588
  * 
  *             search_low = low2
  *             search_high = high2             # <<<<<<<<<<<<<<
@@ -43594,7 +43766,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
     __pyx_v_search_high = __pyx_v_high2;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":586
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":589
  *             search_low = low2
  *             search_high = high2
  *             while search_low < search_high:             # <<<<<<<<<<<<<<
@@ -43605,7 +43777,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
       __pyx_t_3 = ((__pyx_v_search_low < __pyx_v_search_high) != 0);
       if (!__pyx_t_3) break;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":587
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":590
  *             search_high = high2
  *             while search_low < search_high:
  *                 med2 = median(search_low, search_high, step2)             # <<<<<<<<<<<<<<
@@ -43614,7 +43786,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
       __pyx_v_med2 = __pyx_f_4cdec_2sa_3_sa_median(__pyx_v_search_low, __pyx_v_search_high, __pyx_v_step2);
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":588
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":591
  *             while search_low < search_high:
  *                 med2 = median(search_low, search_high, step2)
  *                 assign_matching(&loc2, arr2, med2, step2, self.fda.sent_id.arr)             # <<<<<<<<<<<<<<
@@ -43623,7 +43795,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
       __pyx_f_4cdec_2sa_3_sa_assign_matching((&__pyx_v_loc2), __pyx_v_arr2, __pyx_v_med2, __pyx_v_step2, __pyx_v_self->fda->sent_id->arr);
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":589
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":592
  *                 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)             # <<<<<<<<<<<<<<
@@ -43632,7 +43804,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
       __pyx_v_comparison = ((struct __pyx_vtabstruct_4cdec_2sa_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);
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":592
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":595
  *                 if comparison == -1:
  *                     search_high = med2
  *                 elif comparison == 1:             # <<<<<<<<<<<<<<
@@ -43641,7 +43813,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
       switch (__pyx_v_comparison) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":590
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":593
  *                 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:             # <<<<<<<<<<<<<<
@@ -43650,7 +43822,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
         case -1:
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":591
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":594
  *                 comparison = self.compare_matchings_set(med1_minus, med1_plus, arr1, step1, &loc2, offset_by_one, len_last)
  *                 if comparison == -1:
  *                     search_high = med2             # <<<<<<<<<<<<<<
@@ -43660,7 +43832,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
         __pyx_v_search_high = __pyx_v_med2;
         break;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":592
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":595
  *                 if comparison == -1:
  *                     search_high = med2
  *                 elif comparison == 1:             # <<<<<<<<<<<<<<
@@ -43669,7 +43841,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
         case 1:
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":593
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":596
  *                     search_high = med2
  *                 elif comparison == 1:
  *                     search_low = med2 + step2             # <<<<<<<<<<<<<<
@@ -43680,7 +43852,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
         break;
         default:
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":595
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":598
  *                     search_low = med2 + step2
  *                 else:
  *                     break             # <<<<<<<<<<<<<<
@@ -43695,7 +43867,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
   }
   __pyx_L9:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":597
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":600
  *                     break
  * 
  *         med_result_len = 0             # <<<<<<<<<<<<<<
@@ -43704,7 +43876,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
   __pyx_v_med_result_len = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":598
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":601
  * 
  *         med_result_len = 0
  *         med_result = <int*> malloc(0*sizeof(int*))             # <<<<<<<<<<<<<<
@@ -43713,7 +43885,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
   __pyx_v_med_result = ((int *)malloc((0 * (sizeof(int *)))));
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":599
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":602
  *         med_result_len = 0
  *         med_result = <int*> malloc(0*sizeof(int*))
  *         if search_high > search_low:             # <<<<<<<<<<<<<<
@@ -43723,7 +43895,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
   __pyx_t_3 = ((__pyx_v_search_high > __pyx_v_search_low) != 0);
   if (__pyx_t_3) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":605
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":608
  *             # want to store the bindings for all of those elements.    We can
  *             # subsequently throw all of them away.
  *             med2_minus = med2             # <<<<<<<<<<<<<<
@@ -43732,7 +43904,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
     __pyx_v_med2_minus = __pyx_v_med2;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":606
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":609
  *             # subsequently throw all of them away.
  *             med2_minus = med2
  *             med2_plus = med2 + step2             # <<<<<<<<<<<<<<
@@ -43741,7 +43913,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
     __pyx_v_med2_plus = (__pyx_v_med2 + __pyx_v_step2);
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":607
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":610
  *             med2_minus = med2
  *             med2_plus = med2 + step2
  *             i1 = med1_minus             # <<<<<<<<<<<<<<
@@ -43750,7 +43922,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
     __pyx_v_i1 = __pyx_v_med1_minus;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":608
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":611
  *             med2_plus = med2 + step2
  *             i1 = med1_minus
  *             while i1 < med1_plus:             # <<<<<<<<<<<<<<
@@ -43761,7 +43933,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
       __pyx_t_3 = ((__pyx_v_i1 < __pyx_v_med1_plus) != 0);
       if (!__pyx_t_3) break;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":609
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":612
  *             i1 = med1_minus
  *             while i1 < med1_plus:
  *                 assign_matching(&loc1, arr1, i1, step1, self.fda.sent_id.arr)             # <<<<<<<<<<<<<<
@@ -43770,7 +43942,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
       __pyx_f_4cdec_2sa_3_sa_assign_matching((&__pyx_v_loc1), __pyx_v_arr1, __pyx_v_i1, __pyx_v_step1, __pyx_v_self->fda->sent_id->arr);
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":610
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":613
  *             while i1 < med1_plus:
  *                 assign_matching(&loc1, arr1, i1, step1, self.fda.sent_id.arr)
  *                 while med2_minus-step2 >= low2:             # <<<<<<<<<<<<<<
@@ -43781,7 +43953,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
         __pyx_t_3 = (((__pyx_v_med2_minus - __pyx_v_step2) >= __pyx_v_low2) != 0);
         if (!__pyx_t_3) break;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":611
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":614
  *                 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)             # <<<<<<<<<<<<<<
@@ -43790,7 +43962,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
         __pyx_f_4cdec_2sa_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);
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":612
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":615
  *                 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:             # <<<<<<<<<<<<<<
@@ -43800,7 +43972,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
         __pyx_t_3 = ((((struct __pyx_vtabstruct_4cdec_2sa_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) != 0);
         if (__pyx_t_3) {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":613
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":616
  *                     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             # <<<<<<<<<<<<<<
@@ -43812,7 +43984,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
         }
         /*else*/ {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":615
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":618
  *                         med2_minus = med2_minus - step2
  *                     else:
  *                         break             # <<<<<<<<<<<<<<
@@ -43825,7 +43997,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
       }
       __pyx_L18_break:;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":616
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":619
  *                     else:
  *                         break
  *                 i2 = med2_minus             # <<<<<<<<<<<<<<
@@ -43834,7 +44006,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
       __pyx_v_i2 = __pyx_v_med2_minus;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":617
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":620
  *                         break
  *                 i2 = med2_minus
  *                 while i2 < high2:             # <<<<<<<<<<<<<<
@@ -43845,7 +44017,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
         __pyx_t_3 = ((__pyx_v_i2 < __pyx_v_high2) != 0);
         if (!__pyx_t_3) break;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":618
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":621
  *                 i2 = med2_minus
  *                 while i2 < high2:
  *                     assign_matching(&loc2, arr2, i2, step2, self.fda.sent_id.arr)             # <<<<<<<<<<<<<<
@@ -43854,7 +44026,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
         __pyx_f_4cdec_2sa_3_sa_assign_matching((&__pyx_v_loc2), __pyx_v_arr2, __pyx_v_i2, __pyx_v_step2, __pyx_v_self->fda->sent_id->arr);
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":619
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":622
  *                 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)             # <<<<<<<<<<<<<<
@@ -43863,7 +44035,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
         __pyx_v_comparison = ((struct __pyx_vtabstruct_4cdec_2sa_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);
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":620
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":623
  *                     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:             # <<<<<<<<<<<<<<
@@ -43873,7 +44045,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
         __pyx_t_3 = ((__pyx_v_comparison == 0) != 0);
         if (__pyx_t_3) {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":622
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":625
  *                     if comparison == 0:
  *                         pass
  *                         med_result = append_combined_matching(med_result, &loc1, &loc2, offset_by_one, num_subpatterns, &med_result_len)             # <<<<<<<<<<<<<<
@@ -43885,7 +44057,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
         }
         __pyx_L22:;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":623
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":626
  *                         pass
  *                         med_result = append_combined_matching(med_result, &loc1, &loc2, offset_by_one, num_subpatterns, &med_result_len)
  *                     if comparison == -1:             # <<<<<<<<<<<<<<
@@ -43895,7 +44067,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
         __pyx_t_3 = ((__pyx_v_comparison == -1) != 0);
         if (__pyx_t_3) {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":624
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":627
  *                         med_result = append_combined_matching(med_result, &loc1, &loc2, offset_by_one, num_subpatterns, &med_result_len)
  *                     if comparison == -1:
  *                         break             # <<<<<<<<<<<<<<
@@ -43907,7 +44079,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
         }
         __pyx_L23:;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":625
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":628
  *                     if comparison == -1:
  *                         break
  *                     i2 = i2 + step2             # <<<<<<<<<<<<<<
@@ -43918,7 +44090,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
       }
       __pyx_L21_break:;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":626
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":629
  *                         break
  *                     i2 = i2 + step2
  *                 if i2 > med2_plus:             # <<<<<<<<<<<<<<
@@ -43928,7 +44100,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
       __pyx_t_3 = ((__pyx_v_i2 > __pyx_v_med2_plus) != 0);
       if (__pyx_t_3) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":627
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":630
  *                     i2 = i2 + step2
  *                 if i2 > med2_plus:
  *                     med2_plus = i2             # <<<<<<<<<<<<<<
@@ -43940,7 +44112,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
       }
       __pyx_L24:;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":628
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":631
  *                 if i2 > med2_plus:
  *                     med2_plus = i2
  *                 i1 = i1 + step1             # <<<<<<<<<<<<<<
@@ -43950,7 +44122,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
       __pyx_v_i1 = (__pyx_v_i1 + __pyx_v_step1);
     }
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":630
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":633
  *                 i1 = i1 + step1
  * 
  *             tmp = med1_minus             # <<<<<<<<<<<<<<
@@ -43959,7 +44131,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
     __pyx_v_tmp = __pyx_v_med1_minus;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":631
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":634
  * 
  *             tmp = med1_minus
  *             med1_minus = med1_plus             # <<<<<<<<<<<<<<
@@ -43968,7 +44140,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
     __pyx_v_med1_minus = __pyx_v_med1_plus;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":632
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":635
  *             tmp = med1_minus
  *             med1_minus = med1_plus
  *             med1_plus = tmp             # <<<<<<<<<<<<<<
@@ -43980,7 +44152,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
   }
   /*else*/ {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":635
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":638
  *         else:
  *             # No match; need to figure out the point of division in D and Q
  *             med2_minus = med2             # <<<<<<<<<<<<<<
@@ -43989,7 +44161,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
     __pyx_v_med2_minus = __pyx_v_med2;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":636
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":639
  *             # No match; need to figure out the point of division in D and Q
  *             med2_minus = med2
  *             med2_plus = med2             # <<<<<<<<<<<<<<
@@ -43998,7 +44170,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
     __pyx_v_med2_plus = __pyx_v_med2;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":637
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":640
  *             med2_minus = med2
  *             med2_plus = med2
  *             if d_first:             # <<<<<<<<<<<<<<
@@ -44008,7 +44180,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
     __pyx_t_3 = (__pyx_v_d_first != 0);
     if (__pyx_t_3) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":638
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":641
  *             med2_plus = med2
  *             if d_first:
  *                 med2_minus = med2_minus + step2             # <<<<<<<<<<<<<<
@@ -44017,7 +44189,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
       __pyx_v_med2_minus = (__pyx_v_med2_minus + __pyx_v_step2);
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":639
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":642
  *             if d_first:
  *                 med2_minus = med2_minus + step2
  *                 if comparison == -1:             # <<<<<<<<<<<<<<
@@ -44027,7 +44199,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
       __pyx_t_3 = ((__pyx_v_comparison == -1) != 0);
       if (__pyx_t_3) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":640
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":643
  *                 med2_minus = med2_minus + step2
  *                 if comparison == -1:
  *                     med1_minus = med1_plus             # <<<<<<<<<<<<<<
@@ -44039,7 +44211,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
       }
       __pyx_L26:;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":641
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":644
  *                 if comparison == -1:
  *                     med1_minus = med1_plus
  *                 if comparison == 1:             # <<<<<<<<<<<<<<
@@ -44049,7 +44221,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
       __pyx_t_3 = ((__pyx_v_comparison == 1) != 0);
       if (__pyx_t_3) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":642
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":645
  *                     med1_minus = med1_plus
  *                 if comparison == 1:
  *                     med1_plus = med1_minus             # <<<<<<<<<<<<<<
@@ -44064,7 +44236,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
     }
     /*else*/ {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":644
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":647
  *                     med1_plus = med1_minus
  *             else:
  *                 tmp = med1_minus             # <<<<<<<<<<<<<<
@@ -44073,7 +44245,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
       __pyx_v_tmp = __pyx_v_med1_minus;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":645
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":648
  *             else:
  *                 tmp = med1_minus
  *                 med1_minus = med1_plus             # <<<<<<<<<<<<<<
@@ -44082,7 +44254,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
       __pyx_v_med1_minus = __pyx_v_med1_plus;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":646
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":649
  *                 tmp = med1_minus
  *                 med1_minus = med1_plus
  *                 med1_plus = tmp             # <<<<<<<<<<<<<<
@@ -44091,7 +44263,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
       __pyx_v_med1_plus = __pyx_v_tmp;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":647
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":650
  *                 med1_minus = med1_plus
  *                 med1_plus = tmp
  *                 if comparison == 1:             # <<<<<<<<<<<<<<
@@ -44101,7 +44273,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
       __pyx_t_3 = ((__pyx_v_comparison == 1) != 0);
       if (__pyx_t_3) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":648
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":651
  *                 med1_plus = tmp
  *                 if comparison == 1:
  *                     med2_minus = med2_minus + step2             # <<<<<<<<<<<<<<
@@ -44110,7 +44282,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
         __pyx_v_med2_minus = (__pyx_v_med2_minus + __pyx_v_step2);
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":649
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":652
  *                 if comparison == 1:
  *                     med2_minus = med2_minus + step2
  *                     med2_plus = med2_plus + step2             # <<<<<<<<<<<<<<
@@ -44126,7 +44298,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
   }
   __pyx_L14:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":651
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":654
  *                     med2_plus = med2_plus + step2
  * 
  *         low_result_len = 0             # <<<<<<<<<<<<<<
@@ -44135,7 +44307,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
   __pyx_v_low_result_len = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":652
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":655
  * 
  *         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)             # <<<<<<<<<<<<<<
@@ -44144,7 +44316,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
   __pyx_v_low_result = ((struct __pyx_vtabstruct_4cdec_2sa_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));
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":653
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":656
  *         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             # <<<<<<<<<<<<<<
@@ -44153,7 +44325,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
   __pyx_v_high_result_len = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":654
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":657
  *         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)             # <<<<<<<<<<<<<<
@@ -44162,7 +44334,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
   __pyx_v_high_result = ((struct __pyx_vtabstruct_4cdec_2sa_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));
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":656
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":659
  *         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)             # <<<<<<<<<<<<<<
@@ -44171,7 +44343,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
   __pyx_v_result = __pyx_f_4cdec_2sa_3_sa_extend_arr(__pyx_v_result, __pyx_v_result_len, __pyx_v_low_result, __pyx_v_low_result_len);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":657
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":660
  * 
  *         result = extend_arr(result, result_len, low_result, low_result_len)
  *         result = extend_arr(result, result_len, med_result, med_result_len)             # <<<<<<<<<<<<<<
@@ -44180,7 +44352,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
   __pyx_v_result = __pyx_f_4cdec_2sa_3_sa_extend_arr(__pyx_v_result, __pyx_v_result_len, __pyx_v_med_result, __pyx_v_med_result_len);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":658
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":661
  *         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)             # <<<<<<<<<<<<<<
@@ -44189,7 +44361,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
   __pyx_v_result = __pyx_f_4cdec_2sa_3_sa_extend_arr(__pyx_v_result, __pyx_v_result_len, __pyx_v_high_result, __pyx_v_high_result_len);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":659
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":662
  *         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)             # <<<<<<<<<<<<<<
@@ -44198,7 +44370,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
   free(__pyx_v_low_result);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":660
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":663
  *         result = extend_arr(result, result_len, high_result, high_result_len)
  *         free(low_result)
  *         free(med_result)             # <<<<<<<<<<<<<<
@@ -44207,7 +44379,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
   free(__pyx_v_med_result);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":661
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":664
  *         free(low_result)
  *         free(med_result)
  *         free(high_result)             # <<<<<<<<<<<<<<
@@ -44216,7 +44388,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
  */
   free(__pyx_v_high_result);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":663
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":666
  *         free(high_result)
  * 
  *         return result             # <<<<<<<<<<<<<<
@@ -44236,7 +44408,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_baeza_yates_helper(
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":667
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":670
  * 
  * 
  *     cdef long compare_matchings_set(self, int i1_minus, int i1_plus, int* arr1, int step1,             # <<<<<<<<<<<<<<
@@ -44255,7 +44427,7 @@ static long __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_compare_matchings_s
   int __pyx_t_1;
   __Pyx_RefNannySetupContext("compare_matchings_set", 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":678
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":681
  *         cdef Matching* loc1
  * 
  *         loc1 = &l1_stack             # <<<<<<<<<<<<<<
@@ -44264,7 +44436,7 @@ static long __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_compare_matchings_s
  */
   __pyx_v_loc1 = (&__pyx_v_l1_stack);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":680
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":683
  *         loc1 = &l1_stack
  * 
  *         i1 = i1_minus             # <<<<<<<<<<<<<<
@@ -44273,7 +44445,7 @@ static long __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_compare_matchings_s
  */
   __pyx_v_i1 = __pyx_v_i1_minus;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":681
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":684
  * 
  *         i1 = i1_minus
  *         while i1 < i1_plus:             # <<<<<<<<<<<<<<
@@ -44284,7 +44456,7 @@ static long __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_compare_matchings_s
     __pyx_t_1 = ((__pyx_v_i1 < __pyx_v_i1_plus) != 0);
     if (!__pyx_t_1) break;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":682
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":685
  *         i1 = i1_minus
  *         while i1 < i1_plus:
  *             assign_matching(loc1, arr1, i1, step1, self.fda.sent_id.arr)             # <<<<<<<<<<<<<<
@@ -44293,7 +44465,7 @@ static long __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_compare_matchings_s
  */
     __pyx_f_4cdec_2sa_3_sa_assign_matching(__pyx_v_loc1, __pyx_v_arr1, __pyx_v_i1, __pyx_v_step1, __pyx_v_self->fda->sent_id->arr);
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":683
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":686
  *         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)             # <<<<<<<<<<<<<<
@@ -44302,7 +44474,7 @@ static long __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_compare_matchings_s
  */
     __pyx_v_comparison = ((struct __pyx_vtabstruct_4cdec_2sa_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);
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":684
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":687
  *             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:             # <<<<<<<<<<<<<<
@@ -44312,7 +44484,7 @@ static long __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_compare_matchings_s
     __pyx_t_1 = ((__pyx_v_comparison == 0) != 0);
     if (__pyx_t_1) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":685
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":688
  *             comparison = self.compare_matchings(loc1, loc2, offset_by_one, len_last)
  *             if comparison == 0:
  *                 prev_comparison = 0             # <<<<<<<<<<<<<<
@@ -44321,7 +44493,7 @@ static long __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_compare_matchings_s
  */
       __pyx_v_prev_comparison = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":686
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":689
  *             if comparison == 0:
  *                 prev_comparison = 0
  *                 break             # <<<<<<<<<<<<<<
@@ -44332,7 +44504,7 @@ static long __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_compare_matchings_s
       goto __pyx_L5;
     }
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":687
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":690
  *                 prev_comparison = 0
  *                 break
  *             elif i1 == i1_minus:             # <<<<<<<<<<<<<<
@@ -44342,7 +44514,7 @@ static long __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_compare_matchings_s
     __pyx_t_1 = ((__pyx_v_i1 == __pyx_v_i1_minus) != 0);
     if (__pyx_t_1) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":688
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":691
  *                 break
  *             elif i1 == i1_minus:
  *                 prev_comparison = comparison             # <<<<<<<<<<<<<<
@@ -44354,7 +44526,7 @@ static long __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_compare_matchings_s
     }
     /*else*/ {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":690
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":693
  *                 prev_comparison = comparison
  *             else:
  *                 if comparison != prev_comparison:             # <<<<<<<<<<<<<<
@@ -44364,7 +44536,7 @@ static long __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_compare_matchings_s
       __pyx_t_1 = ((__pyx_v_comparison != __pyx_v_prev_comparison) != 0);
       if (__pyx_t_1) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":691
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":694
  *             else:
  *                 if comparison != prev_comparison:
  *                     prev_comparison = 0             # <<<<<<<<<<<<<<
@@ -44373,7 +44545,7 @@ static long __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_compare_matchings_s
  */
         __pyx_v_prev_comparison = 0;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":692
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":695
  *                 if comparison != prev_comparison:
  *                     prev_comparison = 0
  *                     break             # <<<<<<<<<<<<<<
@@ -44387,7 +44559,7 @@ static long __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_compare_matchings_s
     }
     __pyx_L5:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":693
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":696
  *                     prev_comparison = 0
  *                     break
  *             i1 = i1 + step1             # <<<<<<<<<<<<<<
@@ -44398,7 +44570,7 @@ static long __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_compare_matchings_s
   }
   __pyx_L4_break:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":694
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":697
  *                     break
  *             i1 = i1 + step1
  *         return prev_comparison             # <<<<<<<<<<<<<<
@@ -44414,7 +44586,7 @@ static long __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_compare_matchings_s
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":697
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":700
  * 
  * 
  *     cdef long compare_matchings(self, Matching* loc1, Matching* loc2, int offset_by_one, int len_last):             # <<<<<<<<<<<<<<
@@ -44432,7 +44604,7 @@ static long __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_compare_matchings(s
   int __pyx_t_4;
   __Pyx_RefNannySetupContext("compare_matchings", 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":700
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":703
  *         cdef int i
  * 
  *         if loc1.sent_id > loc2.sent_id:             # <<<<<<<<<<<<<<
@@ -44442,7 +44614,7 @@ static long __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_compare_matchings(s
   __pyx_t_1 = ((__pyx_v_loc1->sent_id > __pyx_v_loc2->sent_id) != 0);
   if (__pyx_t_1) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":701
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":704
  * 
  *         if loc1.sent_id > loc2.sent_id:
  *             return 1             # <<<<<<<<<<<<<<
@@ -44455,7 +44627,7 @@ static long __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_compare_matchings(s
   }
   __pyx_L3:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":702
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":705
  *         if loc1.sent_id > loc2.sent_id:
  *             return 1
  *         if loc2.sent_id > loc1.sent_id:             # <<<<<<<<<<<<<<
@@ -44465,7 +44637,7 @@ static long __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_compare_matchings(s
   __pyx_t_1 = ((__pyx_v_loc2->sent_id > __pyx_v_loc1->sent_id) != 0);
   if (__pyx_t_1) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":703
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":706
  *             return 1
  *         if loc2.sent_id > loc1.sent_id:
  *             return -1             # <<<<<<<<<<<<<<
@@ -44478,7 +44650,7 @@ static long __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_compare_matchings(s
   }
   __pyx_L4:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":705
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":708
  *             return -1
  * 
  *         if loc1.size == 1 and loc2.size == 1:             # <<<<<<<<<<<<<<
@@ -44494,7 +44666,7 @@ static long __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_compare_matchings(s
   }
   if (__pyx_t_3) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":706
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":709
  * 
  *         if loc1.size == 1 and loc2.size == 1:
  *             if loc2.arr[loc2.start] - loc1.arr[loc1.start] <= self.train_min_gap_size:             # <<<<<<<<<<<<<<
@@ -44504,7 +44676,7 @@ static long __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_compare_matchings(s
     __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) != 0);
     if (__pyx_t_3) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":707
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":710
  *         if loc1.size == 1 and loc2.size == 1:
  *             if loc2.arr[loc2.start] - loc1.arr[loc1.start] <= self.train_min_gap_size:
  *                 return 1             # <<<<<<<<<<<<<<
@@ -44519,7 +44691,7 @@ static long __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_compare_matchings(s
     goto __pyx_L5;
   }
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":709
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":712
  *                 return 1
  * 
  *         elif offset_by_one:             # <<<<<<<<<<<<<<
@@ -44529,7 +44701,7 @@ static long __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_compare_matchings(s
   __pyx_t_3 = (__pyx_v_offset_by_one != 0);
   if (__pyx_t_3) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":710
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":713
  * 
  *         elif offset_by_one:
  *             for i from 1 <= i < loc1.size:             # <<<<<<<<<<<<<<
@@ -44539,7 +44711,7 @@ static long __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_compare_matchings(s
     __pyx_t_4 = __pyx_v_loc1->size;
     for (__pyx_v_i = 1; __pyx_v_i < __pyx_t_4; __pyx_v_i++) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":711
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":714
  *         elif offset_by_one:
  *             for i from 1 <= i < loc1.size:
  *                 if loc1.arr[loc1.start+i] > loc2.arr[loc2.start+i-1]:             # <<<<<<<<<<<<<<
@@ -44549,7 +44721,7 @@ static long __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_compare_matchings(s
       __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)])) != 0);
       if (__pyx_t_3) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":712
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":715
  *             for i from 1 <= i < loc1.size:
  *                 if loc1.arr[loc1.start+i] > loc2.arr[loc2.start+i-1]:
  *                     return 1             # <<<<<<<<<<<<<<
@@ -44562,7 +44734,7 @@ static long __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_compare_matchings(s
       }
       __pyx_L9:;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":713
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":716
  *                 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]:             # <<<<<<<<<<<<<<
@@ -44572,7 +44744,7 @@ static long __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_compare_matchings(s
       __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)])) != 0);
       if (__pyx_t_3) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":714
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":717
  *                     return 1
  *                 if loc1.arr[loc1.start+i] < loc2.arr[loc2.start+i-1]:
  *                     return -1             # <<<<<<<<<<<<<<
@@ -44589,7 +44761,7 @@ static long __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_compare_matchings(s
   }
   /*else*/ {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":717
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":720
  * 
  *         else:
  *             if loc1.arr[loc1.start]+1 > loc2.arr[loc2.start]:             # <<<<<<<<<<<<<<
@@ -44599,7 +44771,7 @@ static long __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_compare_matchings(s
     __pyx_t_3 = ((((__pyx_v_loc1->arr[__pyx_v_loc1->start]) + 1) > (__pyx_v_loc2->arr[__pyx_v_loc2->start])) != 0);
     if (__pyx_t_3) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":718
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":721
  *         else:
  *             if loc1.arr[loc1.start]+1 > loc2.arr[loc2.start]:
  *                 return 1             # <<<<<<<<<<<<<<
@@ -44612,7 +44784,7 @@ static long __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_compare_matchings(s
     }
     __pyx_L11:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":719
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":722
  *             if loc1.arr[loc1.start]+1 > loc2.arr[loc2.start]:
  *                 return 1
  *             if loc1.arr[loc1.start]+1 < loc2.arr[loc2.start]:             # <<<<<<<<<<<<<<
@@ -44622,7 +44794,7 @@ static long __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_compare_matchings(s
     __pyx_t_3 = ((((__pyx_v_loc1->arr[__pyx_v_loc1->start]) + 1) < (__pyx_v_loc2->arr[__pyx_v_loc2->start])) != 0);
     if (__pyx_t_3) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":720
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":723
  *                 return 1
  *             if loc1.arr[loc1.start]+1 < loc2.arr[loc2.start]:
  *                 return -1             # <<<<<<<<<<<<<<
@@ -44635,7 +44807,7 @@ static long __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_compare_matchings(s
     }
     __pyx_L12:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":722
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":725
  *                 return -1
  * 
  *             for i from 1 <= i < loc1.size:             # <<<<<<<<<<<<<<
@@ -44645,7 +44817,7 @@ static long __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_compare_matchings(s
     __pyx_t_4 = __pyx_v_loc1->size;
     for (__pyx_v_i = 1; __pyx_v_i < __pyx_t_4; __pyx_v_i++) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":723
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":726
  * 
  *             for i from 1 <= i < loc1.size:
  *                 if loc1.arr[loc1.start+i] > loc2.arr[loc2.start+i]:             # <<<<<<<<<<<<<<
@@ -44655,7 +44827,7 @@ static long __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_compare_matchings(s
       __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)])) != 0);
       if (__pyx_t_3) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":724
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":727
  *             for i from 1 <= i < loc1.size:
  *                 if loc1.arr[loc1.start+i] > loc2.arr[loc2.start+i]:
  *                     return 1             # <<<<<<<<<<<<<<
@@ -44668,7 +44840,7 @@ static long __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_compare_matchings(s
       }
       __pyx_L15:;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":725
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":728
  *                 if loc1.arr[loc1.start+i] > loc2.arr[loc2.start+i]:
  *                     return 1
  *                 if loc1.arr[loc1.start+i] < loc2.arr[loc2.start+i]:             # <<<<<<<<<<<<<<
@@ -44678,7 +44850,7 @@ static long __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_compare_matchings(s
       __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)])) != 0);
       if (__pyx_t_3) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":726
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":729
  *                     return 1
  *                 if loc1.arr[loc1.start+i] < loc2.arr[loc2.start+i]:
  *                     return -1             # <<<<<<<<<<<<<<
@@ -44694,7 +44866,7 @@ static long __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_compare_matchings(s
   }
   __pyx_L5:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":728
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":731
  *                     return -1
  * 
  *         if loc2.arr[loc2.end-1] + len_last - loc1.arr[loc1.start] > self.train_max_initial_size:             # <<<<<<<<<<<<<<
@@ -44704,7 +44876,7 @@ static long __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_compare_matchings(s
   __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) != 0);
   if (__pyx_t_3) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":729
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":732
  * 
  *         if loc2.arr[loc2.end-1] + len_last - loc1.arr[loc1.start] > self.train_max_initial_size:
  *             return -1             # <<<<<<<<<<<<<<
@@ -44717,7 +44889,7 @@ static long __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_compare_matchings(s
   }
   __pyx_L17:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":730
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":733
  *         if loc2.arr[loc2.end-1] + len_last - loc1.arr[loc1.start] > self.train_max_initial_size:
  *             return -1
  *         return 0             # <<<<<<<<<<<<<<
@@ -44733,7 +44905,7 @@ static long __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_compare_matchings(s
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":733
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":736
  * 
  * 
  *     cdef int* merge_helper(self, int low1, int high1, int* arr1, int step1,             # <<<<<<<<<<<<<<
@@ -44757,7 +44929,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_merge_helper(struct
   int __pyx_t_3;
   __Pyx_RefNannySetupContext("merge_helper", 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":741
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":744
  *         cdef Matching loc1, loc2
  * 
  *         result_len[0] = 0             # <<<<<<<<<<<<<<
@@ -44766,7 +44938,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_merge_helper(struct
  */
   (__pyx_v_result_len[0]) = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":742
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":745
  * 
  *         result_len[0] = 0
  *         result = <int*> malloc(0*sizeof(int))             # <<<<<<<<<<<<<<
@@ -44775,7 +44947,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_merge_helper(struct
  */
   __pyx_v_result = ((int *)malloc((0 * (sizeof(int)))));
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":744
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":747
  *         result = <int*> malloc(0*sizeof(int))
  * 
  *         i1 = low1             # <<<<<<<<<<<<<<
@@ -44784,7 +44956,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_merge_helper(struct
  */
   __pyx_v_i1 = __pyx_v_low1;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":745
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":748
  * 
  *         i1 = low1
  *         i2 = low2             # <<<<<<<<<<<<<<
@@ -44793,7 +44965,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_merge_helper(struct
  */
   __pyx_v_i2 = __pyx_v_low2;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":746
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":749
  *         i1 = low1
  *         i2 = low2
  *         while i1 < high1 and i2 < high2:             # <<<<<<<<<<<<<<
@@ -44810,7 +44982,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_merge_helper(struct
     }
     if (!__pyx_t_3) break;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":749
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":752
  * 
  *             # First, pop all unneeded loc2's off the stack
  *             assign_matching(&loc1, arr1, i1, step1, self.fda.sent_id.arr)             # <<<<<<<<<<<<<<
@@ -44819,7 +44991,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_merge_helper(struct
  */
     __pyx_f_4cdec_2sa_3_sa_assign_matching((&__pyx_v_loc1), __pyx_v_arr1, __pyx_v_i1, __pyx_v_step1, __pyx_v_self->fda->sent_id->arr);
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":750
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":753
  *             # First, pop all unneeded loc2's off the stack
  *             assign_matching(&loc1, arr1, i1, step1, self.fda.sent_id.arr)
  *             while i2 < high2:             # <<<<<<<<<<<<<<
@@ -44830,7 +45002,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_merge_helper(struct
       __pyx_t_3 = ((__pyx_v_i2 < __pyx_v_high2) != 0);
       if (!__pyx_t_3) break;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":751
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":754
  *             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)             # <<<<<<<<<<<<<<
@@ -44839,7 +45011,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_merge_helper(struct
  */
       __pyx_f_4cdec_2sa_3_sa_assign_matching((&__pyx_v_loc2), __pyx_v_arr2, __pyx_v_i2, __pyx_v_step2, __pyx_v_self->fda->sent_id->arr);
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":752
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":755
  *             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:             # <<<<<<<<<<<<<<
@@ -44849,7 +45021,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_merge_helper(struct
       __pyx_t_3 = ((((struct __pyx_vtabstruct_4cdec_2sa_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) != 0);
       if (__pyx_t_3) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":753
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":756
  *                 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             # <<<<<<<<<<<<<<
@@ -44861,7 +45033,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_merge_helper(struct
       }
       /*else*/ {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":755
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":758
  *                     i2 = i2 + step2
  *                 else:
  *                     break             # <<<<<<<<<<<<<<
@@ -44874,7 +45046,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_merge_helper(struct
     }
     __pyx_L6_break:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":758
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":761
  * 
  *             # Next: process all loc1's with the same starting val
  *             j1 = i1             # <<<<<<<<<<<<<<
@@ -44883,7 +45055,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_merge_helper(struct
  */
     __pyx_v_j1 = __pyx_v_i1;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":759
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":762
  *             # Next: process all loc1's with the same starting val
  *             j1 = i1
  *             while i1 < high1 and arr1[j1] == arr1[i1]:             # <<<<<<<<<<<<<<
@@ -44900,7 +45072,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_merge_helper(struct
       }
       if (!__pyx_t_2) break;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":760
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":763
  *             j1 = i1
  *             while i1 < high1 and arr1[j1] == arr1[i1]:
  *                 assign_matching(&loc1, arr1, i1, step1, self.fda.sent_id.arr)             # <<<<<<<<<<<<<<
@@ -44909,7 +45081,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_merge_helper(struct
  */
       __pyx_f_4cdec_2sa_3_sa_assign_matching((&__pyx_v_loc1), __pyx_v_arr1, __pyx_v_i1, __pyx_v_step1, __pyx_v_self->fda->sent_id->arr);
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":761
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":764
  *             while i1 < high1 and arr1[j1] == arr1[i1]:
  *                 assign_matching(&loc1, arr1, i1, step1, self.fda.sent_id.arr)
  *                 j2 = i2             # <<<<<<<<<<<<<<
@@ -44918,7 +45090,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_merge_helper(struct
  */
       __pyx_v_j2 = __pyx_v_i2;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":762
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":765
  *                 assign_matching(&loc1, arr1, i1, step1, self.fda.sent_id.arr)
  *                 j2 = i2
  *                 while j2 < high2:             # <<<<<<<<<<<<<<
@@ -44929,7 +45101,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_merge_helper(struct
         __pyx_t_2 = ((__pyx_v_j2 < __pyx_v_high2) != 0);
         if (!__pyx_t_2) break;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":763
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":766
  *                 j2 = i2
  *                 while j2 < high2:
  *                     assign_matching(&loc2, arr2, j2, step2, self.fda.sent_id.arr)             # <<<<<<<<<<<<<<
@@ -44938,7 +45110,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_merge_helper(struct
  */
         __pyx_f_4cdec_2sa_3_sa_assign_matching((&__pyx_v_loc2), __pyx_v_arr2, __pyx_v_j2, __pyx_v_step2, __pyx_v_self->fda->sent_id->arr);
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":764
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":767
  *                 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)             # <<<<<<<<<<<<<<
@@ -44947,7 +45119,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_merge_helper(struct
  */
         __pyx_v_comparison = ((struct __pyx_vtabstruct_4cdec_2sa_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);
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":765
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":768
  *                     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:             # <<<<<<<<<<<<<<
@@ -44957,7 +45129,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_merge_helper(struct
         __pyx_t_2 = ((__pyx_v_comparison == 0) != 0);
         if (__pyx_t_2) {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":766
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":769
  *                     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)             # <<<<<<<<<<<<<<
@@ -44969,7 +45141,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_merge_helper(struct
         }
         __pyx_L12:;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":767
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":770
  *                     if comparison == 0:
  *                         result = append_combined_matching(result, &loc1, &loc2, offset_by_one, num_subpatterns, result_len)
  *                     if comparison == 1:             # <<<<<<<<<<<<<<
@@ -44982,7 +45154,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_merge_helper(struct
         }
         __pyx_L13:;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":769
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":772
  *                     if comparison == 1:
  *                         pass
  *                     if comparison == -1:             # <<<<<<<<<<<<<<
@@ -44992,7 +45164,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_merge_helper(struct
         __pyx_t_2 = ((__pyx_v_comparison == -1) != 0);
         if (__pyx_t_2) {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":770
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":773
  *                         pass
  *                     if comparison == -1:
  *                         break             # <<<<<<<<<<<<<<
@@ -45004,7 +45176,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_merge_helper(struct
         }
         /*else*/ {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":772
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":775
  *                         break
  *                     else:
  *                         j2 = j2 + step2             # <<<<<<<<<<<<<<
@@ -45017,7 +45189,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_merge_helper(struct
       }
       __pyx_L11_break:;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":773
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":776
  *                     else:
  *                         j2 = j2 + step2
  *                 i1 = i1 + step1             # <<<<<<<<<<<<<<
@@ -45028,7 +45200,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_merge_helper(struct
     }
   }
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":774
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":777
  *                         j2 = j2 + step2
  *                 i1 = i1 + step1
  *         return result             # <<<<<<<<<<<<<<
@@ -45044,7 +45216,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_merge_helper(struct
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":777
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":780
  * 
  * 
  *     cdef void sort_phrase_loc(self, IntList arr, PhraseLocation loc, Phrase phrase):             # <<<<<<<<<<<<<<
@@ -45067,27 +45239,27 @@ static void __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_sort_phrase_loc(str
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("sort_phrase_loc", 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":782
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":785
  *         cdef IntList result
  * 
  *         if phrase in self.precomputed_index:             # <<<<<<<<<<<<<<
  *             loc.arr = self.precomputed_index[phrase]
  *         else:
  */
-  __pyx_t_1 = (__Pyx_PySequence_Contains(((PyObject *)__pyx_v_phrase), __pyx_v_self->precomputed_index, Py_EQ)); if (unlikely(__pyx_t_1 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 782; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = (__Pyx_PySequence_Contains(((PyObject *)__pyx_v_phrase), __pyx_v_self->precomputed_index, Py_EQ)); if (unlikely(__pyx_t_1 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 785; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_t_2 = (__pyx_t_1 != 0);
   if (__pyx_t_2) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":783
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":786
  * 
  *         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_3 = PyObject_GetItem(__pyx_v_self->precomputed_index, ((PyObject *)__pyx_v_phrase)); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 783; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_GetItem(__pyx_v_self->precomputed_index, ((PyObject *)__pyx_v_phrase)); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 786; __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_4cdec_2sa_3_sa_IntList))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 783; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (!(likely(((__pyx_t_3) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_3, __pyx_ptype_4cdec_2sa_3_sa_IntList))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 786; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GIVEREF(__pyx_t_3);
     __Pyx_GOTREF(__pyx_v_loc->arr);
     __Pyx_DECREF(((PyObject *)__pyx_v_loc->arr));
@@ -45097,20 +45269,20 @@ static void __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_sort_phrase_loc(str
   }
   /*else*/ {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":785
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":788
  *             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_3 = PyDict_New(); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 785; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyDict_New(); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 788; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(((PyObject *)__pyx_t_3));
-    __pyx_t_4 = PyInt_FromLong((__pyx_v_loc->sa_high - __pyx_v_loc->sa_low)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 785; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyInt_FromLong((__pyx_v_loc->sa_high - __pyx_v_loc->sa_low)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 788; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
-    if (PyDict_SetItem(__pyx_t_3, ((PyObject *)__pyx_n_s__initial_len), __pyx_t_4) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 785; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (PyDict_SetItem(__pyx_t_3, ((PyObject *)__pyx_n_s__initial_len), __pyx_t_4) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 788; __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_4cdec_2sa_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_3)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 785; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_3)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 788; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
     __Pyx_GIVEREF(__pyx_t_4);
@@ -45119,27 +45291,27 @@ static void __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_sort_phrase_loc(str
     __pyx_v_loc->arr = ((struct __pyx_obj_4cdec_2sa_3_sa_IntList *)__pyx_t_4);
     __pyx_t_4 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":786
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":789
  *         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_4 = PyInt_FromLong(__pyx_v_arr->len); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 786; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyInt_FromLong(__pyx_v_arr->len); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 789; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 786; __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 = 789; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_4);
     __Pyx_GIVEREF(__pyx_t_4);
     __pyx_t_4 = 0;
-    __pyx_t_4 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_VEB)), ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 786; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_VEB)), ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 789; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
     __pyx_v_veb = ((struct __pyx_obj_4cdec_2sa_3_sa_VEB *)__pyx_t_4);
     __pyx_t_4 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":787
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":790
  *             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:             # <<<<<<<<<<<<<<
@@ -45149,7 +45321,7 @@ static void __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_sort_phrase_loc(str
     __pyx_t_5 = __pyx_v_loc->sa_high;
     for (__pyx_v_i = __pyx_v_loc->sa_low; __pyx_v_i < __pyx_t_5; __pyx_v_i++) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":788
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":791
  *             veb = VEB(arr.len)
  *             for i from loc.sa_low <= i < loc.sa_high:
  *                 veb._insert(arr.arr[i])             # <<<<<<<<<<<<<<
@@ -45159,7 +45331,7 @@ static void __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_sort_phrase_loc(str
       ((struct __pyx_vtabstruct_4cdec_2sa_3_sa_VEB *)__pyx_v_veb->__pyx_vtab)->_insert(__pyx_v_veb, (__pyx_v_arr->arr[__pyx_v_i]));
     }
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":789
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":792
  *             for i from loc.sa_low <= i < loc.sa_high:
  *                 veb._insert(arr.arr[i])
  *             i = veb.veb.min_val             # <<<<<<<<<<<<<<
@@ -45169,7 +45341,7 @@ static void __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_sort_phrase_loc(str
     __pyx_t_5 = __pyx_v_veb->veb->min_val;
     __pyx_v_i = __pyx_t_5;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":790
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":793
  *                 veb._insert(arr.arr[i])
  *             i = veb.veb.min_val
  *             for j from 0 <= j < loc.sa_high-loc.sa_low:             # <<<<<<<<<<<<<<
@@ -45179,7 +45351,7 @@ static void __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_sort_phrase_loc(str
     __pyx_t_5 = (__pyx_v_loc->sa_high - __pyx_v_loc->sa_low);
     for (__pyx_v_j = 0; __pyx_v_j < __pyx_t_5; __pyx_v_j++) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":791
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":794
  *             i = veb.veb.min_val
  *             for j from 0 <= j < loc.sa_high-loc.sa_low:
  *                 loc.arr.arr[j] = i             # <<<<<<<<<<<<<<
@@ -45188,7 +45360,7 @@ static void __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_sort_phrase_loc(str
  */
       (__pyx_v_loc->arr->arr[__pyx_v_j]) = __pyx_v_i;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":792
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":795
  *             for j from 0 <= j < loc.sa_high-loc.sa_low:
  *                 loc.arr.arr[j] = i
  *                 i = veb._findsucc(i)             # <<<<<<<<<<<<<<
@@ -45200,7 +45372,7 @@ static void __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_sort_phrase_loc(str
   }
   __pyx_L3:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":793
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":796
  *                 loc.arr.arr[j] = i
  *                 i = veb._findsucc(i)
  *         loc.arr_low = 0             # <<<<<<<<<<<<<<
@@ -45209,7 +45381,7 @@ static void __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_sort_phrase_loc(str
  */
   __pyx_v_loc->arr_low = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":794
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":797
  *                 i = veb._findsucc(i)
  *         loc.arr_low = 0
  *         loc.arr_high = loc.arr.len             # <<<<<<<<<<<<<<
@@ -45229,7 +45401,7 @@ static void __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_sort_phrase_loc(str
   __Pyx_RefNannyFinishContext();
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":797
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":800
  * 
  * 
  *     cdef intersect_helper(self, Phrase prefix, Phrase suffix,             # <<<<<<<<<<<<<<
@@ -45266,7 +45438,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_intersect_help
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("intersect_helper", 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":804
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":807
  *         cdef int* result_ptr
  * 
  *         result_len = 0             # <<<<<<<<<<<<<<
@@ -45275,21 +45447,21 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_intersect_help
  */
   __pyx_v_result_len = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":806
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":809
  *         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, 0, 0, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 806; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_GetItemInt(((PyObject *)__pyx_v_suffix), 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 809; __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 = 806; __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 = 809; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __pyx_t_3 = (__pyx_f_4cdec_2sa_3_sa_sym_isvar(__pyx_t_2) != 0);
   if (__pyx_t_3) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":807
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":810
  * 
  *         if sym_isvar(suffix[0]):
  *             offset_by_one = 1             # <<<<<<<<<<<<<<
@@ -45301,7 +45473,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_intersect_help
   }
   /*else*/ {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":809
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":812
  *             offset_by_one = 1
  *         else:
  *             offset_by_one = 0             # <<<<<<<<<<<<<<
@@ -45312,34 +45484,34 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_intersect_help
   }
   __pyx_L3:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":811
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":814
  *             offset_by_one = 0
  * 
  *         len_last = len(suffix.getchunk(suffix.arity()))             # <<<<<<<<<<<<<<
  * 
  *         if prefix_loc.arr is None:
  */
-  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_suffix), __pyx_n_s__getchunk); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 811; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_suffix), __pyx_n_s__getchunk); 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);
-  __pyx_t_4 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_suffix), __pyx_n_s__arity); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 811; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_4 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_suffix), __pyx_n_s__arity); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 814; __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 = 811; __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 = 814; __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 = 811; __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 = 814; __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 = 811; __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 = 814; __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 = 811; __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 = 814; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
   __pyx_v_len_last = __pyx_t_6;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":813
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":816
  *         len_last = len(suffix.getchunk(suffix.arity()))
  * 
  *         if prefix_loc.arr is None:             # <<<<<<<<<<<<<<
@@ -45350,7 +45522,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_intersect_help
   __pyx_t_7 = (__pyx_t_3 != 0);
   if (__pyx_t_7) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":814
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":817
  * 
  *         if prefix_loc.arr is None:
  *             self.sort_phrase_loc(self.fsa.sa, prefix_loc, prefix)             # <<<<<<<<<<<<<<
@@ -45365,7 +45537,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_intersect_help
   }
   __pyx_L4:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":815
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":818
  *         if prefix_loc.arr is None:
  *             self.sort_phrase_loc(self.fsa.sa, prefix_loc, prefix)
  *         arr1 = prefix_loc.arr             # <<<<<<<<<<<<<<
@@ -45377,7 +45549,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_intersect_help
   __pyx_v_arr1 = ((struct __pyx_obj_4cdec_2sa_3_sa_IntList *)__pyx_t_5);
   __pyx_t_5 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":816
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":819
  *             self.sort_phrase_loc(self.fsa.sa, prefix_loc, prefix)
  *         arr1 = prefix_loc.arr
  *         low1 = prefix_loc.arr_low             # <<<<<<<<<<<<<<
@@ -45387,7 +45559,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_intersect_help
   __pyx_t_2 = __pyx_v_prefix_loc->arr_low;
   __pyx_v_low1 = __pyx_t_2;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":817
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":820
  *         arr1 = prefix_loc.arr
  *         low1 = prefix_loc.arr_low
  *         high1 = prefix_loc.arr_high             # <<<<<<<<<<<<<<
@@ -45397,7 +45569,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_intersect_help
   __pyx_t_2 = __pyx_v_prefix_loc->arr_high;
   __pyx_v_high1 = __pyx_t_2;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":818
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":821
  *         low1 = prefix_loc.arr_low
  *         high1 = prefix_loc.arr_high
  *         step1 = prefix_loc.num_subpatterns             # <<<<<<<<<<<<<<
@@ -45407,7 +45579,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_intersect_help
   __pyx_t_2 = __pyx_v_prefix_loc->num_subpatterns;
   __pyx_v_step1 = __pyx_t_2;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":820
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":823
  *         step1 = prefix_loc.num_subpatterns
  * 
  *         if suffix_loc.arr is None:             # <<<<<<<<<<<<<<
@@ -45418,7 +45590,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_intersect_help
   __pyx_t_3 = (__pyx_t_7 != 0);
   if (__pyx_t_3) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":821
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":824
  * 
  *         if suffix_loc.arr is None:
  *             self.sort_phrase_loc(self.fsa.sa, suffix_loc, suffix)             # <<<<<<<<<<<<<<
@@ -45433,7 +45605,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_intersect_help
   }
   __pyx_L5:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":822
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":825
  *         if suffix_loc.arr is None:
  *             self.sort_phrase_loc(self.fsa.sa, suffix_loc, suffix)
  *         arr2 = suffix_loc.arr             # <<<<<<<<<<<<<<
@@ -45445,7 +45617,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_intersect_help
   __pyx_v_arr2 = ((struct __pyx_obj_4cdec_2sa_3_sa_IntList *)__pyx_t_5);
   __pyx_t_5 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":823
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":826
  *             self.sort_phrase_loc(self.fsa.sa, suffix_loc, suffix)
  *         arr2 = suffix_loc.arr
  *         low2 = suffix_loc.arr_low             # <<<<<<<<<<<<<<
@@ -45455,7 +45627,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_intersect_help
   __pyx_t_2 = __pyx_v_suffix_loc->arr_low;
   __pyx_v_low2 = __pyx_t_2;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":824
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":827
  *         arr2 = suffix_loc.arr
  *         low2 = suffix_loc.arr_low
  *         high2 = suffix_loc.arr_high             # <<<<<<<<<<<<<<
@@ -45465,7 +45637,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_intersect_help
   __pyx_t_2 = __pyx_v_suffix_loc->arr_high;
   __pyx_v_high2 = __pyx_t_2;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":825
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":828
  *         low2 = suffix_loc.arr_low
  *         high2 = suffix_loc.arr_high
  *         step2 = suffix_loc.num_subpatterns             # <<<<<<<<<<<<<<
@@ -45475,26 +45647,26 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_intersect_help
   __pyx_t_2 = __pyx_v_suffix_loc->num_subpatterns;
   __pyx_v_step2 = __pyx_t_2;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":827
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":830
  *         step2 = suffix_loc.num_subpatterns
  * 
  *         num_subpatterns = prefix.arity()+1             # <<<<<<<<<<<<<<
  * 
  *         if algorithm == MERGE:
  */
-  __pyx_t_5 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_prefix), __pyx_n_s__arity); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 827; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_5 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_prefix), __pyx_n_s__arity); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 830; __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 = 827; __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 = 830; __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 = 827; __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 = 830; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_5);
   __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-  __pyx_t_2 = __Pyx_PyInt_AsInt(__pyx_t_5); if (unlikely((__pyx_t_2 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 827; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = __Pyx_PyInt_AsInt(__pyx_t_5); if (unlikely((__pyx_t_2 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 830; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
   __pyx_v_num_subpatterns = __pyx_t_2;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":829
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":832
  *         num_subpatterns = prefix.arity()+1
  * 
  *         if algorithm == MERGE:             # <<<<<<<<<<<<<<
@@ -45504,7 +45676,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_intersect_help
   __pyx_t_3 = ((__pyx_v_algorithm == __pyx_v_4cdec_2sa_3_sa_MERGE) != 0);
   if (__pyx_t_3) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":832
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":835
  *             result_ptr = self.merge_helper(low1, high1, arr1.arr, step1,
  *                                     low2, high2, arr2.arr, step2,
  *                                     offset_by_one, len_last, num_subpatterns, &result_len)             # <<<<<<<<<<<<<<
@@ -45516,7 +45688,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_intersect_help
   }
   /*else*/ {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":836
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":839
  *             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)             # <<<<<<<<<<<<<<
@@ -45527,7 +45699,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_intersect_help
   }
   __pyx_L6:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":838
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":841
  *                                     offset_by_one, len_last, num_subpatterns, &result_len)
  * 
  *         if result_len == 0:             # <<<<<<<<<<<<<<
@@ -45537,7 +45709,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_intersect_help
   __pyx_t_3 = ((__pyx_v_result_len == 0) != 0);
   if (__pyx_t_3) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":839
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":842
  * 
  *         if result_len == 0:
  *             free(result_ptr)             # <<<<<<<<<<<<<<
@@ -45546,7 +45718,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_intersect_help
  */
     free(__pyx_v_result_ptr);
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":840
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":843
  *         if result_len == 0:
  *             free(result_ptr)
  *             return None             # <<<<<<<<<<<<<<
@@ -45561,19 +45733,19 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_intersect_help
   }
   /*else*/ {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":842
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":845
  *             return None
  *         else:
  *             result = IntList()             # <<<<<<<<<<<<<<
  *             free(result.arr)
  *             result.arr = result_ptr
  */
-    __pyx_t_5 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 842; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 845; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
     __pyx_v_result = ((struct __pyx_obj_4cdec_2sa_3_sa_IntList *)__pyx_t_5);
     __pyx_t_5 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":843
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":846
  *         else:
  *             result = IntList()
  *             free(result.arr)             # <<<<<<<<<<<<<<
@@ -45582,7 +45754,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_intersect_help
  */
     free(__pyx_v_result->arr);
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":844
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":847
  *             result = IntList()
  *             free(result.arr)
  *             result.arr = result_ptr             # <<<<<<<<<<<<<<
@@ -45591,7 +45763,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_intersect_help
  */
     __pyx_v_result->arr = __pyx_v_result_ptr;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":845
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":848
  *             free(result.arr)
  *             result.arr = result_ptr
  *             result.len = result_len             # <<<<<<<<<<<<<<
@@ -45600,7 +45772,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_intersect_help
  */
     __pyx_v_result->len = __pyx_v_result_len;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":846
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":849
  *             result.arr = result_ptr
  *             result.len = result_len
  *             result.size = result_len             # <<<<<<<<<<<<<<
@@ -45609,7 +45781,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_intersect_help
  */
     __pyx_v_result->size = __pyx_v_result_len;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":847
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":850
  *             result.len = result_len
  *             result.size = result_len
  *             return PhraseLocation(arr_low=0, arr_high=result_len, arr=result, num_subpatterns=num_subpatterns)             # <<<<<<<<<<<<<<
@@ -45617,19 +45789,19 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_intersect_help
  *     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 = 847; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyDict_New(); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 850; __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 = 847; __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 = 847; __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 = 850; __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 = 850; __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 = 847; __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 = 850; __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 = 847; __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 = 847; __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 = 850; __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 = 850; __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 = 847; __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 = 850; __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_4cdec_2sa_3_sa_PhraseLocation)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_5)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 847; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_PhraseLocation)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_5)); 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_DECREF(((PyObject *)__pyx_t_5)); __pyx_t_5 = 0;
     __pyx_r = __pyx_t_4;
@@ -45655,7 +45827,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_intersect_help
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":849
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":852
  *             return PhraseLocation(arr_low=0, arr_high=result_len, arr=result, num_subpatterns=num_subpatterns)
  * 
  *     cdef loc2str(self, PhraseLocation loc):             # <<<<<<<<<<<<<<
@@ -45678,7 +45850,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_loc2str(CYTHON
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("loc2str", 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":851
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":854
  *     cdef loc2str(self, PhraseLocation loc):
  *         cdef int i, j
  *         result = "{"             # <<<<<<<<<<<<<<
@@ -45688,7 +45860,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_loc2str(CYTHON
   __Pyx_INCREF(((PyObject *)__pyx_kp_s_120));
   __pyx_v_result = ((PyObject *)__pyx_kp_s_120);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":852
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":855
  *         cdef int i, j
  *         result = "{"
  *         i = 0             # <<<<<<<<<<<<<<
@@ -45697,7 +45869,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_loc2str(CYTHON
  */
   __pyx_v_i = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":853
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":856
  *         result = "{"
  *         i = 0
  *         while i < loc.arr_high:             # <<<<<<<<<<<<<<
@@ -45708,19 +45880,19 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_loc2str(CYTHON
     __pyx_t_1 = ((__pyx_v_i < __pyx_v_loc->arr_high) != 0);
     if (!__pyx_t_1) break;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":854
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":857
  *         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_121)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 854; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyNumber_Add(__pyx_v_result, ((PyObject *)__pyx_kp_s_121)); 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_DECREF_SET(__pyx_v_result, __pyx_t_2);
     __pyx_t_2 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":855
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":858
  *         while i < loc.arr_high:
  *             result = result + "("
  *             for j from i <= j < i + loc.num_subpatterns:             # <<<<<<<<<<<<<<
@@ -45730,38 +45902,38 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_loc2str(CYTHON
     __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++) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":856
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":859
  *             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, 0, 1, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 856; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = __Pyx_GetItemInt(((PyObject *)__pyx_v_loc->arr), __pyx_v_j, sizeof(int), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 859; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_4 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_23), __pyx_t_2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 856; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_23), __pyx_t_2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 859; __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 = 856; __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 = 859; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
       __Pyx_DECREF_SET(__pyx_v_result, __pyx_t_2);
       __pyx_t_2 = 0;
     }
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":857
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":860
  *             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_61)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 857; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyNumber_Add(__pyx_v_result, ((PyObject *)__pyx_kp_s_61)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 860; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF_SET(__pyx_v_result, __pyx_t_2);
     __pyx_t_2 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":858
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":861
  *                 result = result + ("%d " %loc.arr[j])
  *             result = result + ")"
  *             i = i + loc.num_subpatterns             # <<<<<<<<<<<<<<
@@ -45771,19 +45943,19 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_loc2str(CYTHON
     __pyx_v_i = (__pyx_v_i + __pyx_v_loc->num_subpatterns);
   }
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":859
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":862
  *             result = result + ")"
  *             i = i + loc.num_subpatterns
  *         result = result + "}"             # <<<<<<<<<<<<<<
  *         return result
  * 
  */
-  __pyx_t_2 = PyNumber_Add(__pyx_v_result, ((PyObject *)__pyx_kp_s_122)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 859; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyNumber_Add(__pyx_v_result, ((PyObject *)__pyx_kp_s_122)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 862; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF_SET(__pyx_v_result, __pyx_t_2);
   __pyx_t_2 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":860
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":863
  *             i = i + loc.num_subpatterns
  *         result = result + "}"
  *         return result             # <<<<<<<<<<<<<<
@@ -45809,7 +45981,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_loc2str(CYTHON
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":862
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":865
  *         return result
  * 
  *     cdef PhraseLocation intersect(self, prefix_node, suffix_node, Phrase phrase):             # <<<<<<<<<<<<<<
@@ -45836,81 +46008,81 @@ static struct __pyx_obj_4cdec_2sa_3_sa_PhraseLocation *__pyx_f_4cdec_2sa_3_sa_23
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("intersect", 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":866
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":869
  *         cdef PhraseLocation prefix_loc, suffix_loc, result
  * 
  *         prefix = prefix_node.phrase             # <<<<<<<<<<<<<<
  *         suffix = suffix_node.phrase
  *         prefix_loc = prefix_node.phrase_location
  */
-  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_prefix_node, __pyx_n_s__phrase); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 866; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_prefix_node, __pyx_n_s__phrase); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 869; __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_4cdec_2sa_3_sa_Phrase))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 866; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (!(likely(((__pyx_t_1) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_1, __pyx_ptype_4cdec_2sa_3_sa_Phrase))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 869; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_v_prefix = ((struct __pyx_obj_4cdec_2sa_3_sa_Phrase *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":867
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":870
  * 
  *         prefix = prefix_node.phrase
  *         suffix = suffix_node.phrase             # <<<<<<<<<<<<<<
  *         prefix_loc = prefix_node.phrase_location
  *         suffix_loc = suffix_node.phrase_location
  */
-  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_suffix_node, __pyx_n_s__phrase); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 867; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_suffix_node, __pyx_n_s__phrase); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 870; __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_4cdec_2sa_3_sa_Phrase))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 867; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (!(likely(((__pyx_t_1) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_1, __pyx_ptype_4cdec_2sa_3_sa_Phrase))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 870; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_v_suffix = ((struct __pyx_obj_4cdec_2sa_3_sa_Phrase *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":868
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":871
  *         prefix = prefix_node.phrase
  *         suffix = suffix_node.phrase
  *         prefix_loc = prefix_node.phrase_location             # <<<<<<<<<<<<<<
  *         suffix_loc = suffix_node.phrase_location
  * 
  */
-  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_prefix_node, __pyx_n_s__phrase_location); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 868; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_prefix_node, __pyx_n_s__phrase_location); 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);
-  if (!(likely(((__pyx_t_1) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_1, __pyx_ptype_4cdec_2sa_3_sa_PhraseLocation))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 868; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (!(likely(((__pyx_t_1) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_1, __pyx_ptype_4cdec_2sa_3_sa_PhraseLocation))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 871; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_v_prefix_loc = ((struct __pyx_obj_4cdec_2sa_3_sa_PhraseLocation *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":869
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":872
  *         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 = __Pyx_PyObject_GetAttrStr(__pyx_v_suffix_node, __pyx_n_s__phrase_location); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 869; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_suffix_node, __pyx_n_s__phrase_location); 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);
-  if (!(likely(((__pyx_t_1) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_1, __pyx_ptype_4cdec_2sa_3_sa_PhraseLocation))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 869; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (!(likely(((__pyx_t_1) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_1, __pyx_ptype_4cdec_2sa_3_sa_PhraseLocation))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 872; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_v_suffix_loc = ((struct __pyx_obj_4cdec_2sa_3_sa_PhraseLocation *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":871
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":874
  *         suffix_loc = suffix_node.phrase_location
  * 
  *         result = self.get_precomputed_collocation(phrase)             # <<<<<<<<<<<<<<
  *         if result is not None:
  *             intersect_method = "precomputed"
  */
-  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self), __pyx_n_s_123); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 871; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self), __pyx_n_s_123); 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_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 871; __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 = 874; __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 = 871; __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 = 874; __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_4cdec_2sa_3_sa_PhraseLocation))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 871; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (!(likely(((__pyx_t_3) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_3, __pyx_ptype_4cdec_2sa_3_sa_PhraseLocation))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 874; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_v_result = ((struct __pyx_obj_4cdec_2sa_3_sa_PhraseLocation *)__pyx_t_3);
   __pyx_t_3 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":872
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":875
  * 
  *         result = self.get_precomputed_collocation(phrase)
  *         if result is not None:             # <<<<<<<<<<<<<<
@@ -45921,7 +46093,7 @@ static struct __pyx_obj_4cdec_2sa_3_sa_PhraseLocation *__pyx_f_4cdec_2sa_3_sa_23
   __pyx_t_5 = (__pyx_t_4 != 0);
   if (__pyx_t_5) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":873
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":876
  *         result = self.get_precomputed_collocation(phrase)
  *         if result is not None:
  *             intersect_method = "precomputed"             # <<<<<<<<<<<<<<
@@ -45934,7 +46106,7 @@ static struct __pyx_obj_4cdec_2sa_3_sa_PhraseLocation *__pyx_f_4cdec_2sa_3_sa_23
   }
   __pyx_L3:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":875
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":878
  *             intersect_method = "precomputed"
  * 
  *         if result is None:             # <<<<<<<<<<<<<<
@@ -45945,7 +46117,7 @@ static struct __pyx_obj_4cdec_2sa_3_sa_PhraseLocation *__pyx_f_4cdec_2sa_3_sa_23
   __pyx_t_4 = (__pyx_t_5 != 0);
   if (__pyx_t_4) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":876
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":879
  * 
  *         if result is None:
  *             if self.use_baeza_yates:             # <<<<<<<<<<<<<<
@@ -45955,20 +46127,20 @@ static struct __pyx_obj_4cdec_2sa_3_sa_PhraseLocation *__pyx_f_4cdec_2sa_3_sa_23
     __pyx_t_4 = (__pyx_v_self->use_baeza_yates != 0);
     if (__pyx_t_4) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":877
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":880
  *         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_4cdec_2sa_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_4cdec_2sa_3_sa_BAEZA_YATES); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 877; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = ((struct __pyx_vtabstruct_4cdec_2sa_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_4cdec_2sa_3_sa_BAEZA_YATES); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 880; __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_4cdec_2sa_3_sa_PhraseLocation))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 877; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      if (!(likely(((__pyx_t_3) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_3, __pyx_ptype_4cdec_2sa_3_sa_PhraseLocation))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 880; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF_SET(__pyx_v_result, ((struct __pyx_obj_4cdec_2sa_3_sa_PhraseLocation *)__pyx_t_3));
       __pyx_t_3 = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":878
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":881
  *             if self.use_baeza_yates:
  *                 result = self.intersect_helper(prefix, suffix, prefix_loc, suffix_loc, BAEZA_YATES)
  *                 intersect_method="double binary"             # <<<<<<<<<<<<<<
@@ -45981,20 +46153,20 @@ static struct __pyx_obj_4cdec_2sa_3_sa_PhraseLocation *__pyx_f_4cdec_2sa_3_sa_23
     }
     /*else*/ {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":880
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":883
  *                 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_4cdec_2sa_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_4cdec_2sa_3_sa_MERGE); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 880; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = ((struct __pyx_vtabstruct_4cdec_2sa_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_4cdec_2sa_3_sa_MERGE); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 883; __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_4cdec_2sa_3_sa_PhraseLocation))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 880; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      if (!(likely(((__pyx_t_3) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_3, __pyx_ptype_4cdec_2sa_3_sa_PhraseLocation))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 883; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF_SET(__pyx_v_result, ((struct __pyx_obj_4cdec_2sa_3_sa_PhraseLocation *)__pyx_t_3));
       __pyx_t_3 = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":881
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":884
  *             else:
  *                 result = self.intersect_helper(prefix, suffix, prefix_loc, suffix_loc, MERGE)
  *                 intersect_method="merge"             # <<<<<<<<<<<<<<
@@ -46009,7 +46181,7 @@ static struct __pyx_obj_4cdec_2sa_3_sa_PhraseLocation *__pyx_f_4cdec_2sa_3_sa_23
   }
   __pyx_L4:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":882
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":885
  *                 result = self.intersect_helper(prefix, suffix, prefix_loc, suffix_loc, MERGE)
  *                 intersect_method="merge"
  *         return result             # <<<<<<<<<<<<<<
@@ -46074,16 +46246,16 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_13advance(PyO
         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 = 884; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("advance", 1, 3, 3, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 887; __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 = 884; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("advance", 1, 3, 3, 2); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 887; __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 = 884; __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 = 887; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else if (PyTuple_GET_SIZE(__pyx_args) != 3) {
       goto __pyx_L5_argtuple_error;
@@ -46098,7 +46270,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_13advance(PyO
   }
   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 = 884; __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 = 887; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_AddTraceback("cdec.sa._sa.HieroCachingRuleFactory.advance", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -46109,7 +46281,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_13advance(PyO
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":884
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":887
  *         return result
  * 
  *     def advance(self, frontier, res, fwords):             # <<<<<<<<<<<<<<
@@ -46150,19 +46322,19 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12advance(str
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("advance", 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":886
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":889
  *     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 = 886; __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 = 889; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_v_nf = ((PyObject*)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":887
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":890
  *         cdef unsigned na
  *         nf = []
  *         for toskip, (i, alt, pathlen) in frontier:             # <<<<<<<<<<<<<<
@@ -46173,7 +46345,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12advance(str
     __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 = 887; __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 = 890; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __pyx_t_3 = Py_TYPE(__pyx_t_1)->tp_iternext;
   }
@@ -46181,23 +46353,23 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12advance(str
     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++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 887; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyList_GET_ITEM(__pyx_t_1, __pyx_t_2); __Pyx_INCREF(__pyx_t_4); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 890; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #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 = 887; __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 = 890; __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++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 887; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyTuple_GET_ITEM(__pyx_t_1, __pyx_t_2); __Pyx_INCREF(__pyx_t_4); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 890; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #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 = 887; __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 = 890; __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 = 887; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 890; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         }
         break;
       }
@@ -46213,7 +46385,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12advance(str
       if (unlikely(size != 2)) {
         if (size > 2) __Pyx_RaiseTooManyValuesError(2);
         else if (size >= 0) __Pyx_RaiseNeedMoreValuesError(size);
-        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 887; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 890; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       }
       #if CYTHON_COMPILING_IN_CPYTHON
       if (likely(PyTuple_CheckExact(sequence))) {
@@ -46226,16 +46398,16 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12advance(str
       __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 = 887; __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 = 890; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_5);
-      __pyx_t_6 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 887; __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 = 890; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_6);
       #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 = 887; __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 = 890; __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;
@@ -46243,7 +46415,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12advance(str
       __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 = 887; __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 = 890; __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;
@@ -46251,7 +46423,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12advance(str
       __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 = 887; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      {__pyx_filename = __pyx_f[8]; __pyx_lineno = 890; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __pyx_L6_unpacking_done:;
     }
     __Pyx_XDECREF_SET(__pyx_v_toskip, __pyx_t_5);
@@ -46266,7 +46438,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12advance(str
       if (unlikely(size != 3)) {
         if (size > 3) __Pyx_RaiseTooManyValuesError(3);
         else if (size >= 0) __Pyx_RaiseNeedMoreValuesError(size);
-        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 887; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 890; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       }
       #if CYTHON_COMPILING_IN_CPYTHON
       if (likely(PyTuple_CheckExact(sequence))) {
@@ -46282,18 +46454,18 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12advance(str
       __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 = 887; __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 = 890; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_7);
-      __pyx_t_9 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 887; __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 = 890; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_9);
-      __pyx_t_10 = PySequence_ITEM(sequence, 2); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 887; __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 = 890; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_10);
       #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 = 887; __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 = 890; __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;
@@ -46303,7 +46475,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12advance(str
       __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 = 887; __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 = 890; __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;
@@ -46311,7 +46483,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12advance(str
       __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 = 887; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      {__pyx_filename = __pyx_f[8]; __pyx_lineno = 890; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __pyx_L8_unpacking_done:;
     }
     __Pyx_XDECREF_SET(__pyx_v_i, __pyx_t_7);
@@ -46321,44 +46493,44 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12advance(str
     __Pyx_XDECREF_SET(__pyx_v_pathlen, __pyx_t_10);
     __pyx_t_10 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":888
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":891
  *         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 = 888; __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 = 891; __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 = 888; __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 = 891; __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, 0, 0, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 888; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_6, 2, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 891; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
     __Pyx_XDECREF_SET(__pyx_v_spanlen, __pyx_t_4);
     __pyx_t_4 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":889
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":892
  *         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); __Pyx_XGOTREF(__pyx_t_4); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 889; __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 = 889; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyObject_RichCompare(__pyx_v_toskip, __pyx_int_0, Py_EQ); __Pyx_XGOTREF(__pyx_t_4); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 892; __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 = 892; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     if (__pyx_t_12) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":890
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":893
  *             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 = 890; __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 = 893; __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);
@@ -46369,7 +46541,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12advance(str
       __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 = 890; __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 = 893; __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;
@@ -46377,41 +46549,41 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12advance(str
     }
     __pyx_L9:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":891
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":894
  *             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 = 891; __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 = 894; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_XDECREF_SET(__pyx_v_ni, __pyx_t_6);
     __pyx_t_6 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":892
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":895
  *                 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 = 892; __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 = 892; __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 = 895; __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 = 895; __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); __Pyx_XGOTREF(__pyx_t_4); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 892; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyObject_RichCompare(__pyx_v_ni, __pyx_t_6, Py_LT); __Pyx_XGOTREF(__pyx_t_4); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 895; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __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 = 892; __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 = 895; __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 = 892; __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 = 895; __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 = 892; __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 = 895; __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); __Pyx_XGOTREF(__pyx_t_5); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 892; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_5 = PyObject_RichCompare(__pyx_t_4, __pyx_t_6, Py_LT); __Pyx_XGOTREF(__pyx_t_5); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 895; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __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 = 892; __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 = 895; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
       __pyx_t_15 = __pyx_t_14;
     } else {
@@ -46419,34 +46591,34 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12advance(str
     }
     if (__pyx_t_15) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":893
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":896
  *             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 = 893; __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 = 896; __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 = 893; __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 = 896; __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;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":894
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":897
  *             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 = 894; __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 = 897; __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 = 894; __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 = 897; __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 = 894; __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 = 897; __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 = 894; __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 = 897; __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);
@@ -46457,7 +46629,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12advance(str
         __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 = 894; __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 = 897; __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);
@@ -46465,7 +46637,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12advance(str
         __Pyx_GIVEREF(((PyObject *)__pyx_t_10));
         __pyx_t_5 = 0;
         __pyx_t_10 = 0;
-        __pyx_t_17 = __Pyx_PyList_Append(__pyx_v_nf, ((PyObject *)__pyx_t_4)); if (unlikely(__pyx_t_17 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 894; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_17 = __Pyx_PyList_Append(__pyx_v_nf, ((PyObject *)__pyx_t_4)); if (unlikely(__pyx_t_17 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 897; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
       }
       goto __pyx_L10;
@@ -46474,18 +46646,18 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12advance(str
   }
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":895
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":898
  *                 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 = 895; __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 = 898; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_t_15 = ((__pyx_t_2 > 0) != 0);
   if (__pyx_t_15) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":896
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":899
  *                     nf.append((toskip - 1, (ni, na, pathlen + 1)))
  *         if len(nf) > 0:
  *             return self.advance(nf, res, fwords)             # <<<<<<<<<<<<<<
@@ -46493,9 +46665,9 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12advance(str
  *             return res
  */
     __Pyx_XDECREF(__pyx_r);
-    __pyx_t_1 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self), __pyx_n_s__advance); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 896; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self), __pyx_n_s__advance); 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_4 = PyTuple_New(3); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 896; __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 = 899; __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));
@@ -46506,7 +46678,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12advance(str
     __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 = 896; __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 = 899; __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;
@@ -46517,7 +46689,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12advance(str
   }
   /*else*/ {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":898
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":901
  *             return self.advance(nf, res, fwords)
  *         else:
  *             return res             # <<<<<<<<<<<<<<
@@ -46598,36 +46770,36 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_15get_all_nod
         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 = 900; __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 = 903; __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 = 900; __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 = 903; __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 = 900; __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 = 903; __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 = 900; __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 = 903; __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 = 900; __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 = 903; __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 = 900; __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 = 903; __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 = 900; __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 = 903; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else if (PyTuple_GET_SIZE(__pyx_args) != 7) {
       goto __pyx_L5_argtuple_error;
@@ -46650,7 +46822,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_15get_all_nod
   }
   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 = 900; __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 = 903; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_AddTraceback("cdec.sa._sa.HieroCachingRuleFactory.get_all_nodes_isteps_away", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -46661,7 +46833,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_15get_all_nod
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":900
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":903
  *             return res
  * 
  *     def get_all_nodes_isteps_away(self, skip, i, spanlen, pathlen, fwords, next_states, reachable_buffer):             # <<<<<<<<<<<<<<
@@ -46700,41 +46872,41 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_14get_all_nod
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("get_all_nodes_isteps_away", 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":902
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":905
  *     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 = 902; __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 = 905; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_v_frontier = ((PyObject*)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":903
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":906
  *         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 = 903; __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 = 906; __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 = 903; __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 = 906; __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 = 903; __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 = 903; __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 = 906; __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 = 906; __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); __Pyx_XGOTREF(__pyx_t_4); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 903; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_4 = PyObject_RichCompare(__pyx_t_2, __pyx_t_1, Py_GE); __Pyx_XGOTREF(__pyx_t_4); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 906; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __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 = 903; __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 = 906; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
   if (__pyx_t_5) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":904
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":907
  *         frontier = []
  *         if i+spanlen+skip >= len(next_states):
  *             return frontier             # <<<<<<<<<<<<<<
@@ -46749,14 +46921,14 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_14get_all_nod
   }
   __pyx_L3:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":905
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":908
  *         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 = 905; __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 = 908; __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);
@@ -46764,43 +46936,43 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_14get_all_nod
   __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(((PyObject*)__pyx_t_4))); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 905; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = ((PyObject *)PyList_AsTuple(((PyObject*)__pyx_t_4))); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 908; __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 = ((PyObject*)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":906
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":909
  *             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 = 906; __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 = 909; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_v_reachable = ((PyObject *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":907
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":910
  *         key = tuple([i,spanlen])
  *         reachable = []
  *         if key in reachable_buffer:             # <<<<<<<<<<<<<<
  *             reachable = reachable_buffer[key]
  *         else:
  */
-  __pyx_t_5 = (__Pyx_PySequence_Contains(((PyObject *)__pyx_v_key), __pyx_v_reachable_buffer, Py_EQ)); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 907; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_5 = (__Pyx_PySequence_Contains(((PyObject *)__pyx_v_key), __pyx_v_reachable_buffer, Py_EQ)); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 910; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_t_6 = (__pyx_t_5 != 0);
   if (__pyx_t_6) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":908
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":911
  *         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 = 908; __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 = 911; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF_SET(__pyx_v_reachable, __pyx_t_1);
     __pyx_t_1 = 0;
@@ -46808,16 +46980,16 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_14get_all_nod
   }
   /*else*/ {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":910
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":913
  *             reachable = reachable_buffer[key]
  *         else:
  *             reachable = self.reachable(fwords, i, spanlen)             # <<<<<<<<<<<<<<
  *             reachable_buffer[key] = reachable
  *         for nextreachable in reachable:
  */
-    __pyx_t_1 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self), __pyx_n_s__reachable); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 910; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self), __pyx_n_s__reachable); if (unlikely(!__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_4 = PyTuple_New(3); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 910; __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 = 913; __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);
@@ -46828,25 +47000,25 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_14get_all_nod
     __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 = 910; __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 = 913; __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;
     __Pyx_DECREF_SET(__pyx_v_reachable, __pyx_t_2);
     __pyx_t_2 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":911
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":914
  *         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 = 911; __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 = 914; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   }
   __pyx_L4:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":912
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":915
  *             reachable = self.reachable(fwords, i, spanlen)
  *             reachable_buffer[key] = reachable
  *         for nextreachable in reachable:             # <<<<<<<<<<<<<<
@@ -46857,7 +47029,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_14get_all_nod
     __pyx_t_2 = __pyx_v_reachable; __Pyx_INCREF(__pyx_t_2); __pyx_t_3 = 0;
     __pyx_t_7 = 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 = 912; __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 = 915; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __pyx_t_7 = Py_TYPE(__pyx_t_2)->tp_iternext;
   }
@@ -46865,23 +47037,23 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_14get_all_nod
     if (!__pyx_t_7 && PyList_CheckExact(__pyx_t_2)) {
       if (__pyx_t_3 >= PyList_GET_SIZE(__pyx_t_2)) break;
       #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++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 912; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyList_GET_ITEM(__pyx_t_2, __pyx_t_3); __Pyx_INCREF(__pyx_t_4); __pyx_t_3++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 915; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #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 = 912; __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 = 915; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #endif
     } else if (!__pyx_t_7 && 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++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 912; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyTuple_GET_ITEM(__pyx_t_2, __pyx_t_3); __Pyx_INCREF(__pyx_t_4); __pyx_t_3++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 915; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #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 = 912; __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 = 915; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #endif
     } else {
       __pyx_t_4 = __pyx_t_7(__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 = 912; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 915; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         }
         break;
       }
@@ -46890,20 +47062,20 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_14get_all_nod
     __Pyx_XDECREF_SET(__pyx_v_nextreachable, __pyx_t_4);
     __pyx_t_4 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":913
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":916
  *             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 = 913; __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 = 916; __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_8 = 0;
       __pyx_t_9 = NULL;
     } else {
-      __pyx_t_8 = -1; __pyx_t_1 = PyObject_GetIter(__pyx_t_4); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 913; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = -1; __pyx_t_1 = PyObject_GetIter(__pyx_t_4); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 916; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
       __pyx_t_9 = Py_TYPE(__pyx_t_1)->tp_iternext;
     }
@@ -46912,23 +47084,23 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_14get_all_nod
       if (!__pyx_t_9 && PyList_CheckExact(__pyx_t_1)) {
         if (__pyx_t_8 >= PyList_GET_SIZE(__pyx_t_1)) break;
         #if CYTHON_COMPILING_IN_CPYTHON
-        __pyx_t_4 = PyList_GET_ITEM(__pyx_t_1, __pyx_t_8); __Pyx_INCREF(__pyx_t_4); __pyx_t_8++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 913; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_4 = PyList_GET_ITEM(__pyx_t_1, __pyx_t_8); __Pyx_INCREF(__pyx_t_4); __pyx_t_8++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 916; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         #else
-        __pyx_t_4 = PySequence_ITEM(__pyx_t_1, __pyx_t_8); __pyx_t_8++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 913; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_4 = PySequence_ITEM(__pyx_t_1, __pyx_t_8); __pyx_t_8++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 916; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         #endif
       } else if (!__pyx_t_9 && PyTuple_CheckExact(__pyx_t_1)) {
         if (__pyx_t_8 >= PyTuple_GET_SIZE(__pyx_t_1)) break;
         #if CYTHON_COMPILING_IN_CPYTHON
-        __pyx_t_4 = PyTuple_GET_ITEM(__pyx_t_1, __pyx_t_8); __Pyx_INCREF(__pyx_t_4); __pyx_t_8++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 913; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_4 = PyTuple_GET_ITEM(__pyx_t_1, __pyx_t_8); __Pyx_INCREF(__pyx_t_4); __pyx_t_8++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 916; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         #else
-        __pyx_t_4 = PySequence_ITEM(__pyx_t_1, __pyx_t_8); __pyx_t_8++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 913; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_4 = PySequence_ITEM(__pyx_t_1, __pyx_t_8); __pyx_t_8++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 916; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         #endif
       } else {
         __pyx_t_4 = __pyx_t_9(__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 = 913; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 916; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           }
           break;
         }
@@ -46937,16 +47109,16 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_14get_all_nod
       __Pyx_XDECREF_SET(__pyx_v_next_id, __pyx_t_4);
       __pyx_t_4 = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":914
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":917
  *         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 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self), __pyx_n_s__shortest); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 914; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self), __pyx_n_s__shortest); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 917; __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 = 914; __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 = 917; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_10);
       __Pyx_INCREF(__pyx_v_fwords);
       PyTuple_SET_ITEM(__pyx_t_10, 0, __pyx_v_fwords);
@@ -46957,26 +47129,26 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_14get_all_nod
       __Pyx_INCREF(__pyx_v_next_id);
       PyTuple_SET_ITEM(__pyx_t_10, 2, __pyx_v_next_id);
       __Pyx_GIVEREF(__pyx_v_next_id);
-      __pyx_t_11 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_10), NULL); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 914; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_11 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_10), NULL); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 917; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_11);
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       __Pyx_DECREF(((PyObject *)__pyx_t_10)); __pyx_t_10 = 0;
       __Pyx_XDECREF_SET(__pyx_v_jump, __pyx_t_11);
       __pyx_t_11 = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":915
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":918
  *             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_11 = PyObject_RichCompare(__pyx_v_jump, __pyx_v_skip, Py_LT); __Pyx_XGOTREF(__pyx_t_11); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 915; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_11); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 915; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_11 = PyObject_RichCompare(__pyx_v_jump, __pyx_v_skip, Py_LT); __Pyx_XGOTREF(__pyx_t_11); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 918; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_11); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 918; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
       if (__pyx_t_6) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":916
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":919
  *                 jump = self.shortest(fwords,i,next_id)
  *                 if jump < skip:
  *                     continue             # <<<<<<<<<<<<<<
@@ -46988,50 +47160,50 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_14get_all_nod
       }
       __pyx_L9:;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":917
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":920
  *                 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_11 = PyNumber_Add(__pyx_v_pathlen, __pyx_v_jump); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 917; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_11 = PyNumber_Add(__pyx_v_pathlen, __pyx_v_jump); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 920; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_11);
-      __pyx_t_10 = PyInt_FromLong(__pyx_v_self->max_initial_size); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 917; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_10 = PyInt_FromLong(__pyx_v_self->max_initial_size); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 920; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_10);
-      __pyx_t_4 = PyObject_RichCompare(__pyx_t_11, __pyx_t_10, Py_LE); __Pyx_XGOTREF(__pyx_t_4); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 917; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyObject_RichCompare(__pyx_t_11, __pyx_t_10, Py_LE); __Pyx_XGOTREF(__pyx_t_4); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 920; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
       __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-      __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 917; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 920; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       if (__pyx_t_6) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":918
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":921
  *                     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 = 918; __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 = 921; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_4);
-        __pyx_t_12 = PyObject_Length(__pyx_t_4); if (unlikely(__pyx_t_12 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 918; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_12 = PyObject_Length(__pyx_t_4); if (unlikely(__pyx_t_12 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 921; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-        __pyx_t_4 = PyInt_FromSsize_t(__pyx_t_12); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 918; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_4 = PyInt_FromSsize_t(__pyx_t_12); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 921; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_4);
-        __pyx_t_10 = PyTuple_New(1); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 918; __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 = 921; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_10);
         PyTuple_SET_ITEM(__pyx_t_10, 0, __pyx_t_4);
         __Pyx_GIVEREF(__pyx_t_4);
         __pyx_t_4 = 0;
-        __pyx_t_4 = PyObject_Call(__pyx_builtin_range, ((PyObject *)__pyx_t_10), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 918; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_4 = PyObject_Call(__pyx_builtin_range, ((PyObject *)__pyx_t_10), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 921; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_4);
         __Pyx_DECREF(((PyObject *)__pyx_t_10)); __pyx_t_10 = 0;
         if (PyList_CheckExact(__pyx_t_4) || PyTuple_CheckExact(__pyx_t_4)) {
           __pyx_t_10 = __pyx_t_4; __Pyx_INCREF(__pyx_t_10); __pyx_t_12 = 0;
           __pyx_t_13 = NULL;
         } else {
-          __pyx_t_12 = -1; __pyx_t_10 = PyObject_GetIter(__pyx_t_4); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 918; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_12 = -1; __pyx_t_10 = PyObject_GetIter(__pyx_t_4); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 921; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_10);
           __pyx_t_13 = Py_TYPE(__pyx_t_10)->tp_iternext;
         }
@@ -47040,23 +47212,23 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_14get_all_nod
           if (!__pyx_t_13 && PyList_CheckExact(__pyx_t_10)) {
             if (__pyx_t_12 >= PyList_GET_SIZE(__pyx_t_10)) break;
             #if CYTHON_COMPILING_IN_CPYTHON
-            __pyx_t_4 = PyList_GET_ITEM(__pyx_t_10, __pyx_t_12); __Pyx_INCREF(__pyx_t_4); __pyx_t_12++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 918; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_4 = PyList_GET_ITEM(__pyx_t_10, __pyx_t_12); __Pyx_INCREF(__pyx_t_4); __pyx_t_12++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 921; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             #else
-            __pyx_t_4 = PySequence_ITEM(__pyx_t_10, __pyx_t_12); __pyx_t_12++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 918; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_4 = PySequence_ITEM(__pyx_t_10, __pyx_t_12); __pyx_t_12++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 921; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             #endif
           } else if (!__pyx_t_13 && PyTuple_CheckExact(__pyx_t_10)) {
             if (__pyx_t_12 >= PyTuple_GET_SIZE(__pyx_t_10)) break;
             #if CYTHON_COMPILING_IN_CPYTHON
-            __pyx_t_4 = PyTuple_GET_ITEM(__pyx_t_10, __pyx_t_12); __Pyx_INCREF(__pyx_t_4); __pyx_t_12++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 918; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_4 = PyTuple_GET_ITEM(__pyx_t_10, __pyx_t_12); __Pyx_INCREF(__pyx_t_4); __pyx_t_12++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 921; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             #else
-            __pyx_t_4 = PySequence_ITEM(__pyx_t_10, __pyx_t_12); __pyx_t_12++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 918; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_4 = PySequence_ITEM(__pyx_t_10, __pyx_t_12); __pyx_t_12++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 921; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             #endif
           } else {
             __pyx_t_4 = __pyx_t_13(__pyx_t_10);
             if (unlikely(!__pyx_t_4)) {
               if (PyErr_Occurred()) {
                 if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-                else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 918; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 921; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               }
               break;
             }
@@ -47065,40 +47237,40 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_14get_all_nod
           __Pyx_XDECREF_SET(__pyx_v_alt_id, __pyx_t_4);
           __pyx_t_4 = 0;
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":919
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":922
  *                 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 = 919; __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 = 922; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_4);
-          __pyx_t_11 = PyObject_GetItem(__pyx_t_4, __pyx_v_alt_id); if (!__pyx_t_11) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 919; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_11 = PyObject_GetItem(__pyx_t_4, __pyx_v_alt_id); if (!__pyx_t_11) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 922; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_11);
           __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-          __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_11, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 919; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_11, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 922; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_4);
           __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
-          __pyx_t_11 = PyInt_FromLong(__pyx_v_4cdec_2sa_3_sa_EPSILON); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 919; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_11 = PyInt_FromLong(__pyx_v_4cdec_2sa_3_sa_EPSILON); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 922; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_11);
-          __pyx_t_14 = PyObject_RichCompare(__pyx_t_4, __pyx_t_11, Py_NE); __Pyx_XGOTREF(__pyx_t_14); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 919; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_14 = PyObject_RichCompare(__pyx_t_4, __pyx_t_11, Py_NE); __Pyx_XGOTREF(__pyx_t_14); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 922; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
           __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
-          __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_14); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 919; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_14); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 922; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_DECREF(__pyx_t_14); __pyx_t_14 = 0;
           if (__pyx_t_6) {
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":920
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":923
  *                     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_14 = PyNumber_Add(__pyx_v_pathlen, __pyx_v_jump); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 920; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_14 = PyNumber_Add(__pyx_v_pathlen, __pyx_v_jump); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 923; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_14);
-            __pyx_t_11 = PyTuple_New(3); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 920; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_11 = PyTuple_New(3); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 923; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_11);
             __Pyx_INCREF(__pyx_v_next_id);
             PyTuple_SET_ITEM(__pyx_t_11, 0, __pyx_v_next_id);
@@ -47112,27 +47284,27 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_14get_all_nod
             __Pyx_XDECREF_SET(__pyx_v_newel, ((PyObject*)__pyx_t_11));
             __pyx_t_11 = 0;
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":921
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":924
  *                         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_6 = (__Pyx_PySequence_Contains(((PyObject *)__pyx_v_newel), ((PyObject *)__pyx_v_frontier), Py_NE)); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 921; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_6 = (__Pyx_PySequence_Contains(((PyObject *)__pyx_v_newel), ((PyObject *)__pyx_v_frontier), Py_NE)); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 924; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __pyx_t_5 = (__pyx_t_6 != 0);
             if (__pyx_t_5) {
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":922
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":925
  *                             newel = (next_id,alt_id,pathlen+jump)
  *                             if newel not in frontier:
  *                                 frontier.append((next_id,alt_id,pathlen+jump))             # <<<<<<<<<<<<<<
  *         return frontier
  * 
  */
-              __pyx_t_11 = PyNumber_Add(__pyx_v_pathlen, __pyx_v_jump); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 922; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_11 = PyNumber_Add(__pyx_v_pathlen, __pyx_v_jump); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 925; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_11);
-              __pyx_t_14 = PyTuple_New(3); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 922; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_14 = PyTuple_New(3); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 925; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_14);
               __Pyx_INCREF(__pyx_v_next_id);
               PyTuple_SET_ITEM(__pyx_t_14, 0, __pyx_v_next_id);
@@ -47143,7 +47315,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_14get_all_nod
               PyTuple_SET_ITEM(__pyx_t_14, 2, __pyx_t_11);
               __Pyx_GIVEREF(__pyx_t_11);
               __pyx_t_11 = 0;
-              __pyx_t_15 = __Pyx_PyList_Append(__pyx_v_frontier, ((PyObject *)__pyx_t_14)); if (unlikely(__pyx_t_15 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 922; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_15 = __Pyx_PyList_Append(__pyx_v_frontier, ((PyObject *)__pyx_t_14)); if (unlikely(__pyx_t_15 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 925; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_DECREF(((PyObject *)__pyx_t_14)); __pyx_t_14 = 0;
               goto __pyx_L14;
             }
@@ -47162,7 +47334,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_14get_all_nod
   }
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":923
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":926
  *                             if newel not in frontier:
  *                                 frontier.append((next_id,alt_id,pathlen+jump))
  *         return frontier             # <<<<<<<<<<<<<<
@@ -47232,16 +47404,16 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_17reachable(P
         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 = 925; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("reachable", 1, 3, 3, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 928; __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 = 925; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("reachable", 1, 3, 3, 2); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 928; __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 = 925; __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 = 928; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else if (PyTuple_GET_SIZE(__pyx_args) != 3) {
       goto __pyx_L5_argtuple_error;
@@ -47256,7 +47428,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_17reachable(P
   }
   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 = 925; __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 = 928; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_AddTraceback("cdec.sa._sa.HieroCachingRuleFactory.reachable", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -47267,7 +47439,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_17reachable(P
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":925
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":928
  *         return frontier
  * 
  *     def reachable(self, fwords, ifrom, dist):             # <<<<<<<<<<<<<<
@@ -47298,35 +47470,35 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_16reachable(s
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("reachable", 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":926
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":929
  * 
  *     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 = 926; __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 = 929; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_v_ret = ((PyObject*)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":927
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":930
  *     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 = 927; __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 = 927; __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 = 930; __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 = 930; __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); __Pyx_XGOTREF(__pyx_t_3); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 927; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_RichCompare(__pyx_v_ifrom, __pyx_t_1, Py_GE); __Pyx_XGOTREF(__pyx_t_3); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 930; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __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 = 927; __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 = 930; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   if (__pyx_t_4) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":928
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":931
  *         ret = []
  *         if ifrom >= len(fwords):
  *             return ret             # <<<<<<<<<<<<<<
@@ -47341,32 +47513,32 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_16reachable(s
   }
   __pyx_L3:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":929
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":932
  *         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 = 929; __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 = 932; __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 = 929; __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 = 932; __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 = 929; __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 = 932; __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 = 929; __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 = 932; __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 = 929; __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 = 932; __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 = 929; __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 = 932; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __pyx_t_5 = Py_TYPE(__pyx_t_1)->tp_iternext;
   }
@@ -47375,23 +47547,23 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_16reachable(s
     if (!__pyx_t_5 && PyList_CheckExact(__pyx_t_1)) {
       if (__pyx_t_2 >= PyList_GET_SIZE(__pyx_t_1)) break;
       #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++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 929; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = PyList_GET_ITEM(__pyx_t_1, __pyx_t_2); __Pyx_INCREF(__pyx_t_3); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 932; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #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 = 929; __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 = 932; __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++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 929; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = PyTuple_GET_ITEM(__pyx_t_1, __pyx_t_2); __Pyx_INCREF(__pyx_t_3); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 932; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #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 = 929; __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 = 932; __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 = 929; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 932; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         }
         break;
       }
@@ -47400,53 +47572,53 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_16reachable(s
     __Pyx_XDECREF_SET(__pyx_v_alt_id, __pyx_t_3);
     __pyx_t_3 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":930
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":933
  *             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 = 930; __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 = 933; __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 = 930; __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 = 933; __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, 0, 0, 1); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 930; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = __Pyx_GetItemInt(__pyx_t_6, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 933; __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_4cdec_2sa_3_sa_EPSILON); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 930; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = PyInt_FromLong(__pyx_v_4cdec_2sa_3_sa_EPSILON); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 933; __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); __Pyx_XGOTREF(__pyx_t_7); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 930; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_7 = PyObject_RichCompare(__pyx_t_3, __pyx_t_6, Py_EQ); __Pyx_XGOTREF(__pyx_t_7); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 933; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __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 = 930; __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 = 933; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
     if (__pyx_t_4) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":931
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":934
  *         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 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_ret), __pyx_n_s__extend); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 931; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_7 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_ret), __pyx_n_s__extend); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 934; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_7);
-      __pyx_t_6 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self), __pyx_n_s__reachable); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 931; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self), __pyx_n_s__reachable); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 934; __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 = 931; __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 = 934; __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 = 931; __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 = 934; __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, 0, 0, 1); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 931; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = __Pyx_GetItemInt(__pyx_t_8, 2, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 934; __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 = 931; __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 = 934; __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 = 931; __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 = 934; __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);
@@ -47457,16 +47629,16 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_16reachable(s
       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 = 931; __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 = 934; __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 = 931; __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 = 934; __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 = 931; __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 = 934; __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;
@@ -47475,37 +47647,37 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_16reachable(s
     }
     /*else*/ {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":933
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":936
  *                 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); __Pyx_XGOTREF(__pyx_t_8); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 933; __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 = 933; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = PyObject_RichCompare(__pyx_v_dist, __pyx_int_0, Py_EQ); __Pyx_XGOTREF(__pyx_t_8); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 936; __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 = 936; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
       if (__pyx_t_4) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":934
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":937
  *             else:
  *                 if dist == 0:
  *                     if ifrom not in ret:             # <<<<<<<<<<<<<<
  *                         ret.append(ifrom)
  *                 else:
  */
-        __pyx_t_4 = (__Pyx_PySequence_Contains(__pyx_v_ifrom, ((PyObject *)__pyx_v_ret), Py_NE)); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 934; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_4 = (__Pyx_PySequence_Contains(__pyx_v_ifrom, ((PyObject *)__pyx_v_ret), Py_NE)); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 937; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __pyx_t_9 = (__pyx_t_4 != 0);
         if (__pyx_t_9) {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":935
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":938
  *                 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_10 = __Pyx_PyList_Append(__pyx_v_ret, __pyx_v_ifrom); if (unlikely(__pyx_t_10 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 935; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_10 = __Pyx_PyList_Append(__pyx_v_ret, __pyx_v_ifrom); if (unlikely(__pyx_t_10 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 938; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           goto __pyx_L8;
         }
         __pyx_L8:;
@@ -47513,29 +47685,29 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_16reachable(s
       }
       /*else*/ {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":937
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":940
  *                         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 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self), __pyx_n_s__reachable); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 937; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_8 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self), __pyx_n_s__reachable); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 940; __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 = 937; __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 = 940; __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 = 937; __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 = 940; __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, 0, 0, 1); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 937; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_3 = __Pyx_GetItemInt(__pyx_t_7, 2, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 940; __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 = 937; __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 = 940; __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 = 937; __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 = 940; __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 = 937; __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 = 940; __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);
@@ -47546,7 +47718,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_16reachable(s
         __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 = 937; __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 = 940; __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;
@@ -47554,7 +47726,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_16reachable(s
           __pyx_t_6 = __pyx_t_3; __Pyx_INCREF(__pyx_t_6); __pyx_t_11 = 0;
           __pyx_t_12 = NULL;
         } else {
-          __pyx_t_11 = -1; __pyx_t_6 = PyObject_GetIter(__pyx_t_3); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 937; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_11 = -1; __pyx_t_6 = PyObject_GetIter(__pyx_t_3); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 940; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_6);
           __pyx_t_12 = Py_TYPE(__pyx_t_6)->tp_iternext;
         }
@@ -47563,23 +47735,23 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_16reachable(s
           if (!__pyx_t_12 && PyList_CheckExact(__pyx_t_6)) {
             if (__pyx_t_11 >= PyList_GET_SIZE(__pyx_t_6)) break;
             #if CYTHON_COMPILING_IN_CPYTHON
-            __pyx_t_3 = PyList_GET_ITEM(__pyx_t_6, __pyx_t_11); __Pyx_INCREF(__pyx_t_3); __pyx_t_11++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 937; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_3 = PyList_GET_ITEM(__pyx_t_6, __pyx_t_11); __Pyx_INCREF(__pyx_t_3); __pyx_t_11++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 940; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             #else
-            __pyx_t_3 = PySequence_ITEM(__pyx_t_6, __pyx_t_11); __pyx_t_11++; if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 937; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_3 = PySequence_ITEM(__pyx_t_6, __pyx_t_11); __pyx_t_11++; if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 940; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             #endif
           } else if (!__pyx_t_12 && PyTuple_CheckExact(__pyx_t_6)) {
             if (__pyx_t_11 >= PyTuple_GET_SIZE(__pyx_t_6)) break;
             #if CYTHON_COMPILING_IN_CPYTHON
-            __pyx_t_3 = PyTuple_GET_ITEM(__pyx_t_6, __pyx_t_11); __Pyx_INCREF(__pyx_t_3); __pyx_t_11++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 937; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_3 = PyTuple_GET_ITEM(__pyx_t_6, __pyx_t_11); __Pyx_INCREF(__pyx_t_3); __pyx_t_11++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 940; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             #else
-            __pyx_t_3 = PySequence_ITEM(__pyx_t_6, __pyx_t_11); __pyx_t_11++; if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 937; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_3 = PySequence_ITEM(__pyx_t_6, __pyx_t_11); __pyx_t_11++; if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 940; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             #endif
           } else {
             __pyx_t_3 = __pyx_t_12(__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 = 937; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 940; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               }
               break;
             }
@@ -47588,25 +47760,25 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_16reachable(s
           __Pyx_XDECREF_SET(__pyx_v_ifromchild, __pyx_t_3);
           __pyx_t_3 = 0;
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":938
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":941
  *                 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_9 = (__Pyx_PySequence_Contains(__pyx_v_ifromchild, ((PyObject *)__pyx_v_ret), Py_NE)); if (unlikely(__pyx_t_9 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 938; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_9 = (__Pyx_PySequence_Contains(__pyx_v_ifromchild, ((PyObject *)__pyx_v_ret), Py_NE)); if (unlikely(__pyx_t_9 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 941; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __pyx_t_4 = (__pyx_t_9 != 0);
           if (__pyx_t_4) {
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":939
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":942
  *                     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_10 = __Pyx_PyList_Append(__pyx_v_ret, __pyx_v_ifromchild); if (unlikely(__pyx_t_10 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 939; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_10 = __Pyx_PyList_Append(__pyx_v_ret, __pyx_v_ifromchild); if (unlikely(__pyx_t_10 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 942; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             goto __pyx_L11;
           }
           __pyx_L11:;
@@ -47619,7 +47791,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_16reachable(s
   }
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":941
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":944
  *                             ret.append(ifromchild)
  * 
  *         return ret             # <<<<<<<<<<<<<<
@@ -47683,16 +47855,16 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_19shortest(Py
         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 = 943; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("shortest", 1, 3, 3, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 946; __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 = 943; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("shortest", 1, 3, 3, 2); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 946; __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 = 943; __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 = 946; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else if (PyTuple_GET_SIZE(__pyx_args) != 3) {
       goto __pyx_L5_argtuple_error;
@@ -47707,7 +47879,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_19shortest(Py
   }
   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 = 943; __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 = 946; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_AddTraceback("cdec.sa._sa.HieroCachingRuleFactory.shortest", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -47718,7 +47890,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_19shortest(Py
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":943
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":946
  *         return ret
  * 
  *     def shortest(self, fwords, ifrom, ito):             # <<<<<<<<<<<<<<
@@ -47743,7 +47915,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_18shortest(st
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("shortest", 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":945
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":948
  *     def shortest(self, fwords, ifrom, ito):
  *         cdef unsigned alt_id
  *         min = 1000             # <<<<<<<<<<<<<<
@@ -47753,19 +47925,19 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_18shortest(st
   __Pyx_INCREF(__pyx_int_1000);
   __pyx_v_min = __pyx_int_1000;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":946
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":949
  *         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); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 946; __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 = 946; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_RichCompare(__pyx_v_ifrom, __pyx_v_ito, Py_GT); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 949; __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 = 949; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   if (__pyx_t_2) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":947
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":950
  *         min = 1000
  *         if ifrom > ito:
  *             return min             # <<<<<<<<<<<<<<
@@ -47780,19 +47952,19 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_18shortest(st
   }
   __pyx_L3:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":948
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":951
  *         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); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 948; __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 = 948; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_RichCompare(__pyx_v_ifrom, __pyx_v_ito, Py_EQ); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 951; __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 = 951; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   if (__pyx_t_2) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":949
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":952
  *             return min
  *         if ifrom == ito:
  *             return 0             # <<<<<<<<<<<<<<
@@ -47807,41 +47979,41 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_18shortest(st
   }
   __pyx_L4:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":950
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":953
  *         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 = 950; __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 = 953; __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 = 950; __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 = 953; __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;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":951
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":954
  *             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 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self), __pyx_n_s__shortest); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 951; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self), __pyx_n_s__shortest); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 954; __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 = 951; __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 = 954; __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, 0, 0, 1); if (!__pyx_t_6) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 951; __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, 0, 0, 1); if (!__pyx_t_6) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 954; __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, 0, 0, 1); if (!__pyx_t_5) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 951; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = __Pyx_GetItemInt(__pyx_t_6, 2, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_5) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 954; __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 = 951; __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 = 954; __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 = 951; __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 = 954; __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);
@@ -47852,45 +48024,45 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_18shortest(st
     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 = 951; __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 = 954; __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;
     __Pyx_XDECREF_SET(__pyx_v_currmin, __pyx_t_6);
     __pyx_t_6 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":952
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":955
  *         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 = 952; __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 = 955; __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, 0, 0, 1); if (!__pyx_t_5) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 952; __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, 0, 0, 1); if (!__pyx_t_5) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 955; __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, 0, 0, 1); if (!__pyx_t_6) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 952; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = __Pyx_GetItemInt(__pyx_t_5, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_6) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 955; __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_4cdec_2sa_3_sa_EPSILON); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 952; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyInt_FromLong(__pyx_v_4cdec_2sa_3_sa_EPSILON); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 955; __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); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 952; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyObject_RichCompare(__pyx_t_6, __pyx_t_5, Py_NE); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 955; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __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 = 952; __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 = 955; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     if (__pyx_t_2) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":953
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":956
  *             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 = 953; __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 = 956; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
       __Pyx_DECREF_SET(__pyx_v_currmin, __pyx_t_1);
       __pyx_t_1 = 0;
@@ -47898,19 +48070,19 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_18shortest(st
     }
     __pyx_L7:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":954
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":957
  *             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); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 954; __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 = 954; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyObject_RichCompare(__pyx_v_currmin, __pyx_v_min, Py_LT); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 957; __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 = 957; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     if (__pyx_t_2) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":955
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":958
  *                 currmin += 1
  *             if currmin < min:
  *                 min = currmin             # <<<<<<<<<<<<<<
@@ -47924,7 +48096,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_18shortest(st
     __pyx_L8:;
   }
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":956
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":959
  *             if currmin < min:
  *                 min = currmin
  *         return min             # <<<<<<<<<<<<<<
@@ -47986,7 +48158,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_21get_next_st
         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 = 958; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("get_next_states", 0, 2, 3, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 961; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
         case  2:
         if (kw_args > 0) {
@@ -47995,7 +48167,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_21get_next_st
         }
       }
       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 = 958; __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 = 961; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else {
       switch (PyTuple_GET_SIZE(__pyx_args)) {
@@ -48012,7 +48184,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_21get_next_st
   }
   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 = 958; __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 = 961; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_AddTraceback("cdec.sa._sa.HieroCachingRuleFactory.get_next_states", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -48023,7 +48195,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_21get_next_st
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":958
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":961
  *         return min
  * 
  *     def get_next_states(self, _columns, curr_idx, min_dist=2):             # <<<<<<<<<<<<<<
@@ -48056,26 +48228,26 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_20get_next_st
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("get_next_states", 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":959
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":962
  * 
  *     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 = 959; __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 = 962; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_v_result = ((PyObject*)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":960
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":963
  *     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 = 960; __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 = 963; __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);
@@ -48083,7 +48255,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_20get_next_st
   __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 = 960; __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 = 963; __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));
@@ -48091,7 +48263,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_20get_next_st
   __pyx_v_candidate = ((PyObject*)__pyx_t_2);
   __pyx_t_2 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":962
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":965
  *         candidate = [[curr_idx,0]]
  * 
  *         while len(candidate) > 0:             # <<<<<<<<<<<<<<
@@ -48099,42 +48271,42 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_20get_next_st
  *             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 = 962; __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 = 965; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __pyx_t_4 = ((__pyx_t_3 > 0) != 0);
     if (!__pyx_t_4) break;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":963
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":966
  * 
  *         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 = 963; __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 = 966; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_XDECREF_SET(__pyx_v_curr, __pyx_t_2);
     __pyx_t_2 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":964
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":967
  *         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, 0, 0, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 964; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_curr, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 967; __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 = 964; __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 = 964; __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 = 967; __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 = 967; __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); __Pyx_XGOTREF(__pyx_t_5); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 964; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyObject_RichCompare(__pyx_t_2, __pyx_t_1, Py_GE); __Pyx_XGOTREF(__pyx_t_5); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 967; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __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 = 964; __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 = 967; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
     if (__pyx_t_4) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":965
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":968
  *             curr = candidate.pop()
  *             if curr[0] >= len(_columns):
  *                 continue             # <<<<<<<<<<<<<<
@@ -48146,30 +48318,30 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_20get_next_st
     }
     __pyx_L5:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":966
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":969
  *             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, 0, 0, 1); if (!__pyx_t_5) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 966; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = __Pyx_GetItemInt(__pyx_v_curr, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_5) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 969; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
-    __pyx_t_4 = (__Pyx_PySequence_Contains(__pyx_t_5, ((PyObject *)__pyx_v_result), Py_NE)); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 966; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = (__Pyx_PySequence_Contains(__pyx_t_5, ((PyObject *)__pyx_v_result), Py_NE)); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 969; __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, 0, 0, 1); if (!__pyx_t_5) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 966; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_5 = __Pyx_GetItemInt(__pyx_v_curr, 1, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_5) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 969; __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); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 966; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyObject_RichCompare(__pyx_v_min_dist, __pyx_t_5, Py_LE); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 969; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       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 = 966; __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 = 969; __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); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 966; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_1 = PyObject_RichCompare(__pyx_t_5, __pyx_t_2, Py_LE); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 969; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __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 = 966; __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 = 969; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
       __pyx_t_7 = __pyx_t_6;
     } else {
@@ -48177,37 +48349,37 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_20get_next_st
     }
     if (__pyx_t_7) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":967
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":970
  *                 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, 0, 0, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 967; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_curr, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 970; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
-      __pyx_t_8 = __Pyx_PyList_Append(__pyx_v_result, __pyx_t_1); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 967; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = __Pyx_PyList_Append(__pyx_v_result, __pyx_t_1); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 970; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
       goto __pyx_L6;
     }
     __pyx_L6:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":968
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":971
  *             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, 0, 0, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 968; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_curr, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 971; __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 = 968; __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 = 971; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     __Pyx_XDECREF_SET(__pyx_v_curr_col, __pyx_t_5);
     __pyx_t_5 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":969
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":972
  *                 result.append(curr[0]);
  *             curr_col = _columns[curr[0]]
  *             for alt in curr_col:             # <<<<<<<<<<<<<<
@@ -48218,7 +48390,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_20get_next_st
       __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 = 969; __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 = 972; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_5);
       __pyx_t_9 = Py_TYPE(__pyx_t_5)->tp_iternext;
     }
@@ -48226,23 +48398,23 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_20get_next_st
       if (!__pyx_t_9 && PyList_CheckExact(__pyx_t_5)) {
         if (__pyx_t_3 >= PyList_GET_SIZE(__pyx_t_5)) break;
         #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++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 969; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_1 = PyList_GET_ITEM(__pyx_t_5, __pyx_t_3); __Pyx_INCREF(__pyx_t_1); __pyx_t_3++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 972; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         #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 = 969; __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 = 972; __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++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 969; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_1 = PyTuple_GET_ITEM(__pyx_t_5, __pyx_t_3); __Pyx_INCREF(__pyx_t_1); __pyx_t_3++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 972; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         #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 = 969; __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 = 972; __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 = 969; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 972; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           }
           break;
         }
@@ -48251,25 +48423,25 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_20get_next_st
       __Pyx_XDECREF_SET(__pyx_v_alt, __pyx_t_1);
       __pyx_t_1 = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":970
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":973
  *             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, 0, 0, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 970; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_curr, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 973; __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, 0, 0, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 970; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_alt, 2, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__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_10 = PyNumber_Add(__pyx_t_1, __pyx_t_2); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 970; __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 = 973; __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;
       __Pyx_XDECREF_SET(__pyx_v_next_id, __pyx_t_10);
       __pyx_t_10 = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":971
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":974
  *             for alt in curr_col:
  *                 next_id = curr[0]+alt[2]
  *                 jump = 1             # <<<<<<<<<<<<<<
@@ -48279,25 +48451,25 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_20get_next_st
       __Pyx_INCREF(__pyx_int_1);
       __Pyx_XDECREF_SET(__pyx_v_jump, __pyx_int_1);
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":972
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":975
  *                 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, 0, 0, 1); if (!__pyx_t_10) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 972; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_10 = __Pyx_GetItemInt(__pyx_v_alt, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_10) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 975; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_10);
-      __pyx_t_2 = PyInt_FromLong(__pyx_v_4cdec_2sa_3_sa_EPSILON); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 972; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyInt_FromLong(__pyx_v_4cdec_2sa_3_sa_EPSILON); 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_t_1 = PyObject_RichCompare(__pyx_t_10, __pyx_t_2, Py_EQ); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 972; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyObject_RichCompare(__pyx_t_10, __pyx_t_2, Py_EQ); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 975; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __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 = 972; __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 = 975; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
       if (__pyx_t_7) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":973
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":976
  *                 jump = 1
  *                 if alt[0] == EPSILON:
  *                     jump = 0             # <<<<<<<<<<<<<<
@@ -48310,30 +48482,30 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_20get_next_st
       }
       __pyx_L9:;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":974
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":977
  *                 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_PySequence_Contains(__pyx_v_next_id, ((PyObject *)__pyx_v_result), Py_NE)); if (unlikely(__pyx_t_7 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 974; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_7 = (__Pyx_PySequence_Contains(__pyx_v_next_id, ((PyObject *)__pyx_v_result), Py_NE)); if (unlikely(__pyx_t_7 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 977; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       if (__pyx_t_7) {
-        __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_curr, 1, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 974; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_curr, 1, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 977; __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 = 974; __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 = 977; __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); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 974; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_1 = PyObject_RichCompare(__pyx_v_min_dist, __pyx_t_2, Py_LE); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 977; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         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 = 974; __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 = 977; __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); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 974; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_1 = PyObject_RichCompare(__pyx_t_2, __pyx_t_10, Py_LE); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 977; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __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 = 974; __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 = 977; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
         __pyx_t_6 = __pyx_t_4;
       } else {
@@ -48341,19 +48513,19 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_20get_next_st
       }
       if (__pyx_t_6) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":975
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":978
  *                     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, 0, 0, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 975; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_curr, 1, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 978; __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 = 975; __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 = 978; __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 = 975; __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 = 978; __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);
@@ -48361,7 +48533,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_20get_next_st
         PyList_SET_ITEM(__pyx_t_1, 1, __pyx_t_2);
         __Pyx_GIVEREF(__pyx_t_2);
         __pyx_t_2 = 0;
-        __pyx_t_8 = __Pyx_PyList_Append(__pyx_v_candidate, ((PyObject *)__pyx_t_1)); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 975; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_8 = __Pyx_PyList_Append(__pyx_v_candidate, ((PyObject *)__pyx_t_1)); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 978; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
         goto __pyx_L10;
       }
@@ -48371,7 +48543,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_20get_next_st
     __pyx_L3_continue:;
   }
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":976
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":979
  *                 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);             # <<<<<<<<<<<<<<
@@ -48379,12 +48551,12 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_20get_next_st
  *     def input(self, fwords, meta, ctx_name=None):
  */
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_5 = PyTuple_New(1); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 976; __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 = 979; __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 = 976; __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 = 979; __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;
@@ -48431,7 +48603,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_23input(PyObj
     static PyObject **__pyx_pyargnames[] = {&__pyx_n_s__fwords,&__pyx_n_s__meta,&__pyx_n_s__ctx_name,0};
     PyObject* values[3] = {0,0,0};
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":978
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":981
  *         return sorted(result);
  * 
  *     def input(self, fwords, meta, ctx_name=None):             # <<<<<<<<<<<<<<
@@ -48457,7 +48629,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_23input(PyObj
         case  1:
         if (likely((values[1] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__meta)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("input", 0, 2, 3, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 978; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("input", 0, 2, 3, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 981; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
         case  2:
         if (kw_args > 0) {
@@ -48466,7 +48638,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_23input(PyObj
         }
       }
       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 = 978; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "input") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 981; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else {
       switch (PyTuple_GET_SIZE(__pyx_args)) {
@@ -48483,7 +48655,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_23input(PyObj
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("input", 0, 2, 3, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 978; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+  __Pyx_RaiseArgtupleInvalid("input", 0, 2, 3, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 981; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_AddTraceback("cdec.sa._sa.HieroCachingRuleFactory.input", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -48495,30 +48667,30 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_23input(PyObj
 }
 
 /* Python wrapper */
-static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5input_lambda4(PyObject *__pyx_self, CYTHON_UNUSED PyObject *unused); /*proto*/
-static PyMethodDef __pyx_mdef_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5input_lambda4 = {__Pyx_NAMESTR("lambda4"), (PyCFunction)__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5input_lambda4, METH_NOARGS, __Pyx_DOCSTR(0)};
-static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5input_lambda4(PyObject *__pyx_self, CYTHON_UNUSED PyObject *unused) {
+static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5input_lambda5(PyObject *__pyx_self, CYTHON_UNUSED PyObject *unused); /*proto*/
+static PyMethodDef __pyx_mdef_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5input_lambda5 = {__Pyx_NAMESTR("lambda5"), (PyCFunction)__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5input_lambda5, METH_NOARGS, __Pyx_DOCSTR(0)};
+static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5input_lambda5(PyObject *__pyx_self, CYTHON_UNUSED PyObject *unused) {
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
-  __Pyx_RefNannySetupContext("lambda4 (wrapper)", 0);
-  __pyx_r = __pyx_lambda_funcdef_lambda4(__pyx_self);
+  __Pyx_RefNannySetupContext("lambda5 (wrapper)", 0);
+  __pyx_r = __pyx_lambda_funcdef_lambda5(__pyx_self);
   __Pyx_RefNannyFinishContext();
   return __pyx_r;
 }
 
 /* Python wrapper */
-static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5input_7lambda4_lambda5(PyObject *__pyx_self, CYTHON_UNUSED PyObject *unused); /*proto*/
-static PyMethodDef __pyx_mdef_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5input_7lambda4_lambda5 = {__Pyx_NAMESTR("lambda5"), (PyCFunction)__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5input_7lambda4_lambda5, METH_NOARGS, __Pyx_DOCSTR(0)};
-static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5input_7lambda4_lambda5(PyObject *__pyx_self, CYTHON_UNUSED PyObject *unused) {
+static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5input_7lambda5_lambda6(PyObject *__pyx_self, CYTHON_UNUSED PyObject *unused); /*proto*/
+static PyMethodDef __pyx_mdef_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5input_7lambda5_lambda6 = {__Pyx_NAMESTR("lambda6"), (PyCFunction)__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5input_7lambda5_lambda6, METH_NOARGS, __Pyx_DOCSTR(0)};
+static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5input_7lambda5_lambda6(PyObject *__pyx_self, CYTHON_UNUSED PyObject *unused) {
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
-  __Pyx_RefNannySetupContext("lambda5 (wrapper)", 0);
-  __pyx_r = __pyx_lambda_funcdef_lambda5(__pyx_self);
+  __Pyx_RefNannySetupContext("lambda6 (wrapper)", 0);
+  __pyx_r = __pyx_lambda_funcdef_lambda6(__pyx_self);
   __Pyx_RefNannyFinishContext();
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1147
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1150
  *                         if len(extracts) > 0:
  *                             fcount = Counter()
  *                             fphrases = defaultdict(lambda: defaultdict(lambda: defaultdict(list)))             # <<<<<<<<<<<<<<
@@ -48526,7 +48698,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5input_7lambd
  *                                 fcount[f] += count
  */
 
-static PyObject *__pyx_lambda_funcdef_lambda5(CYTHON_UNUSED PyObject *__pyx_self) {
+static PyObject *__pyx_lambda_funcdef_lambda6(CYTHON_UNUSED PyObject *__pyx_self) {
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
   PyObject *__pyx_t_1 = NULL;
@@ -48535,16 +48707,16 @@ static PyObject *__pyx_lambda_funcdef_lambda5(CYTHON_UNUSED PyObject *__pyx_self
   int __pyx_lineno = 0;
   const char *__pyx_filename = NULL;
   int __pyx_clineno = 0;
-  __Pyx_RefNannySetupContext("lambda5", 0);
+  __Pyx_RefNannySetupContext("lambda6", 0);
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s__defaultdict); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1147; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s__defaultdict); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1150; __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 = 1147; __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 = 1150; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_INCREF(((PyObject *)((PyObject*)(&PyList_Type))));
   PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)((PyObject*)(&PyList_Type))));
   __Pyx_GIVEREF(((PyObject *)((PyObject*)(&PyList_Type))));
-  __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 = 1147; __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 = 1150; __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;
@@ -48558,7 +48730,7 @@ static PyObject *__pyx_lambda_funcdef_lambda5(CYTHON_UNUSED PyObject *__pyx_self
   __Pyx_XDECREF(__pyx_t_1);
   __Pyx_XDECREF(__pyx_t_2);
   __Pyx_XDECREF(__pyx_t_3);
-  __Pyx_AddTraceback("cdec.sa._sa.HieroCachingRuleFactory.input.lambda4.lambda5", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec.sa._sa.HieroCachingRuleFactory.input.lambda5.lambda6", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __pyx_r = NULL;
   __pyx_L0:;
   __Pyx_XGIVEREF(__pyx_r);
@@ -48566,7 +48738,7 @@ static PyObject *__pyx_lambda_funcdef_lambda5(CYTHON_UNUSED PyObject *__pyx_self
   return __pyx_r;
 }
 
-static PyObject *__pyx_lambda_funcdef_lambda4(CYTHON_UNUSED PyObject *__pyx_self) {
+static PyObject *__pyx_lambda_funcdef_lambda5(CYTHON_UNUSED PyObject *__pyx_self) {
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
   PyObject *__pyx_t_1 = NULL;
@@ -48575,18 +48747,18 @@ static PyObject *__pyx_lambda_funcdef_lambda4(CYTHON_UNUSED PyObject *__pyx_self
   int __pyx_lineno = 0;
   const char *__pyx_filename = NULL;
   int __pyx_clineno = 0;
-  __Pyx_RefNannySetupContext("lambda4", 0);
+  __Pyx_RefNannySetupContext("lambda5", 0);
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s__defaultdict); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1147; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s__defaultdict); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1150; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = __Pyx_CyFunction_NewEx(&__pyx_mdef_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5input_7lambda4_lambda5, 0, __pyx_n_s_125, NULL, __pyx_n_s_102, NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1147; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = __Pyx_CyFunction_NewEx(&__pyx_mdef_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5input_7lambda5_lambda6, 0, __pyx_n_s_125, NULL, __pyx_n_s_102, NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1150; __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 = 1147; __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 = 1150; __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 = 1147; __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[8]; __pyx_lineno = 1150; __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;
@@ -48600,7 +48772,7 @@ static PyObject *__pyx_lambda_funcdef_lambda4(CYTHON_UNUSED PyObject *__pyx_self
   __Pyx_XDECREF(__pyx_t_1);
   __Pyx_XDECREF(__pyx_t_2);
   __Pyx_XDECREF(__pyx_t_3);
-  __Pyx_AddTraceback("cdec.sa._sa.HieroCachingRuleFactory.input.lambda4", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec.sa._sa.HieroCachingRuleFactory.input.lambda5", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __pyx_r = NULL;
   __pyx_L0:;
   __Pyx_XGIVEREF(__pyx_r);
@@ -48609,18 +48781,18 @@ static PyObject *__pyx_lambda_funcdef_lambda4(CYTHON_UNUSED PyObject *__pyx_self
 }
 
 /* Python wrapper */
-static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5input_1lambda6(PyObject *__pyx_self, PyObject *__pyx_v_x); /*proto*/
-static PyMethodDef __pyx_mdef_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5input_1lambda6 = {__Pyx_NAMESTR("lambda6"), (PyCFunction)__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5input_1lambda6, METH_O, __Pyx_DOCSTR(0)};
-static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5input_1lambda6(PyObject *__pyx_self, PyObject *__pyx_v_x) {
+static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5input_1lambda7(PyObject *__pyx_self, PyObject *__pyx_v_x); /*proto*/
+static PyMethodDef __pyx_mdef_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5input_1lambda7 = {__Pyx_NAMESTR("lambda7"), (PyCFunction)__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5input_1lambda7, METH_O, __Pyx_DOCSTR(0)};
+static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5input_1lambda7(PyObject *__pyx_self, PyObject *__pyx_v_x) {
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
-  __Pyx_RefNannySetupContext("lambda6 (wrapper)", 0);
-  __pyx_r = __pyx_lambda_funcdef_lambda6(__pyx_self, ((PyObject *)__pyx_v_x));
+  __Pyx_RefNannySetupContext("lambda7 (wrapper)", 0);
+  __pyx_r = __pyx_lambda_funcdef_lambda7(__pyx_self, ((PyObject *)__pyx_v_x));
   __Pyx_RefNannyFinishContext();
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1153
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1156
  *                             for f, elist in fphrases.iteritems():
  *                                 for e, alslist in elist.iteritems():
  *                                     alignment, max_locs = max(alslist.iteritems(), key=lambda x: len(x[1]))             # <<<<<<<<<<<<<<
@@ -48628,7 +48800,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5input_1lambd
  *                                     count = len(locs)
  */
 
-static PyObject *__pyx_lambda_funcdef_lambda6(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_x) {
+static PyObject *__pyx_lambda_funcdef_lambda7(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_x) {
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
   PyObject *__pyx_t_1 = NULL;
@@ -48636,13 +48808,13 @@ static PyObject *__pyx_lambda_funcdef_lambda6(CYTHON_UNUSED PyObject *__pyx_self
   int __pyx_lineno = 0;
   const char *__pyx_filename = NULL;
   int __pyx_clineno = 0;
-  __Pyx_RefNannySetupContext("lambda6", 0);
+  __Pyx_RefNannySetupContext("lambda7", 0);
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_x, 1, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1153; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_x, 1, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1156; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = PyObject_Length(__pyx_t_1); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1153; __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 = 1156; __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[8]; __pyx_lineno = 1153; __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 = 1156; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_r = __pyx_t_1;
   __pyx_t_1 = 0;
@@ -48652,7 +48824,7 @@ static PyObject *__pyx_lambda_funcdef_lambda6(CYTHON_UNUSED PyObject *__pyx_self
   goto __pyx_L0;
   __pyx_L1_error:;
   __Pyx_XDECREF(__pyx_t_1);
-  __Pyx_AddTraceback("cdec.sa._sa.HieroCachingRuleFactory.input.lambda6", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec.sa._sa.HieroCachingRuleFactory.input.lambda7", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __pyx_r = NULL;
   __pyx_L0:;
   __Pyx_XGIVEREF(__pyx_r);
@@ -48661,7 +48833,7 @@ static PyObject *__pyx_lambda_funcdef_lambda6(CYTHON_UNUSED PyObject *__pyx_self
 }
 static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5input_4generator14(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1193
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1196
  *         if self.online:
  *             stats = self.online_stats[ctx_name]
  *             f_syms = tuple(word[0][0] for word in fwords)             # <<<<<<<<<<<<<<
@@ -48687,7 +48859,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5input_2genex
   __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_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5input_4generator14, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1193; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5input_4generator14, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1196; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_cur_scope);
     __Pyx_RefNannyFinishContext();
     return (PyObject *) gen;
@@ -48727,13 +48899,13 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5input_4gener
     return NULL;
   }
   __pyx_L3_first_run:;
-  if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1193; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (unlikely(!__pyx_cur_scope->__pyx_outer_scope->__pyx_v_fwords)) { __Pyx_RaiseClosureNameError("fwords"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1193; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+  if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1196; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (unlikely(!__pyx_cur_scope->__pyx_outer_scope->__pyx_v_fwords)) { __Pyx_RaiseClosureNameError("fwords"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1196; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
   if (PyList_CheckExact(__pyx_cur_scope->__pyx_outer_scope->__pyx_v_fwords) || PyTuple_CheckExact(__pyx_cur_scope->__pyx_outer_scope->__pyx_v_fwords)) {
     __pyx_t_1 = __pyx_cur_scope->__pyx_outer_scope->__pyx_v_fwords; __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_outer_scope->__pyx_v_fwords); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1193; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = -1; __pyx_t_1 = PyObject_GetIter(__pyx_cur_scope->__pyx_outer_scope->__pyx_v_fwords); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1196; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __pyx_t_3 = Py_TYPE(__pyx_t_1)->tp_iternext;
   }
@@ -48741,23 +48913,23 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5input_4gener
     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++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1193; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyList_GET_ITEM(__pyx_t_1, __pyx_t_2); __Pyx_INCREF(__pyx_t_4); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1196; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #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 = 1193; __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 = 1196; __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++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1193; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyTuple_GET_ITEM(__pyx_t_1, __pyx_t_2); __Pyx_INCREF(__pyx_t_4); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1196; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #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 = 1193; __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 = 1196; __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 = 1193; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1196; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         }
         break;
       }
@@ -48767,9 +48939,9 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5input_4gener
     __Pyx_XDECREF_SET(__pyx_cur_scope->__pyx_v_word, __pyx_t_4);
     __Pyx_GIVEREF(__pyx_t_4);
     __pyx_t_4 = 0;
-    __pyx_t_4 = __Pyx_GetItemInt(__pyx_cur_scope->__pyx_v_word, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1193; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = __Pyx_GetItemInt(__pyx_cur_scope->__pyx_v_word, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1196; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_5 = __Pyx_GetItemInt(__pyx_t_4, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_5) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1193; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = __Pyx_GetItemInt(__pyx_t_4, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_5) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1196; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     __pyx_r = __pyx_t_5;
@@ -48789,7 +48961,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5input_4gener
     __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[8]; __pyx_lineno = 1193; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1196; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   }
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   PyErr_SetNone(PyExc_StopIteration);
@@ -48807,7 +48979,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5input_4gener
   return NULL;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":978
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":981
  *         return sorted(result);
  * 
  *     def input(self, fwords, meta, ctx_name=None):             # <<<<<<<<<<<<<<
@@ -48842,7 +49014,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_22input(struc
   __Pyx_INCREF(__pyx_cur_scope->__pyx_v_ctx_name);
   __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_ctx_name);
   {
-    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 978; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 981; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_cur_scope);
     __Pyx_RefNannyFinishContext();
     return (PyObject *) gen;
@@ -48907,9 +49079,9 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
     return NULL;
   }
   __pyx_L3_first_run:;
-  if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 978; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 981; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":989
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":992
  *         cdef Phrase hiero_phrase
  * 
  *         flen = len(fwords)             # <<<<<<<<<<<<<<
@@ -48918,27 +49090,27 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
  */
   __pyx_t_1 = __pyx_cur_scope->__pyx_v_fwords;
   __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 = 989; __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 = 992; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __pyx_cur_scope->__pyx_v_flen = __pyx_t_2;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":990
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":993
  * 
  *         flen = len(fwords)
  *         start_time = monitor_cpu()             # <<<<<<<<<<<<<<
  *         self.extract_time = 0.0
  *         self.intersect_time = 0.0
  */
-  __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s__monitor_cpu); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 990; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s__monitor_cpu); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 993; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_3 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 990; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 993; __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_PyFloat_AsFloat(__pyx_t_3); if (unlikely((__pyx_t_4 == (float)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 990; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_4 = __pyx_PyFloat_AsFloat(__pyx_t_3); if (unlikely((__pyx_t_4 == (float)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 993; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   __pyx_cur_scope->__pyx_v_start_time = __pyx_t_4;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":991
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":994
  *         flen = len(fwords)
  *         start_time = monitor_cpu()
  *         self.extract_time = 0.0             # <<<<<<<<<<<<<<
@@ -48947,7 +49119,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
  */
   __pyx_cur_scope->__pyx_v_self->extract_time = 0.0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":992
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":995
  *         start_time = monitor_cpu()
  *         self.extract_time = 0.0
  *         self.intersect_time = 0.0             # <<<<<<<<<<<<<<
@@ -48956,20 +49128,20 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
  */
   __pyx_cur_scope->__pyx_v_self->intersect_time = 0.0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":993
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":996
  *         self.extract_time = 0.0
  *         self.intersect_time = 0.0
  *         nodes_isteps_away_buffer = {}             # <<<<<<<<<<<<<<
  *         hit = 0
  *         reachable_buffer = {}
  */
-  __pyx_t_3 = PyDict_New(); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 993; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyDict_New(); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 996; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_3));
   __Pyx_GIVEREF(((PyObject *)__pyx_t_3));
   __pyx_cur_scope->__pyx_v_nodes_isteps_away_buffer = ((PyObject*)__pyx_t_3);
   __pyx_t_3 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":994
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":997
  *         self.intersect_time = 0.0
  *         nodes_isteps_away_buffer = {}
  *         hit = 0             # <<<<<<<<<<<<<<
@@ -48978,46 +49150,46 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
  */
   __pyx_cur_scope->__pyx_v_hit = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":995
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":998
  *         nodes_isteps_away_buffer = {}
  *         hit = 0
  *         reachable_buffer = {}             # <<<<<<<<<<<<<<
  * 
  *         # Phrase pairs processed by suffix array extractor.  Do not re-extract
  */
-  __pyx_t_3 = PyDict_New(); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 995; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyDict_New(); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 998; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_3));
   __Pyx_GIVEREF(((PyObject *)__pyx_t_3));
   __pyx_cur_scope->__pyx_v_reachable_buffer = ((PyObject*)__pyx_t_3);
   __pyx_t_3 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1000
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1003
  *         # during online extraction.  This is probably the hackiest part of
  *         # online grammar extraction.
  *         seen_phrases = set()             # <<<<<<<<<<<<<<
  * 
  *         # Do not cache between sentences
  */
-  __pyx_t_3 = PySet_New(0); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1000; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PySet_New(0); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1003; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_3));
   __Pyx_GIVEREF(((PyObject *)__pyx_t_3));
   __pyx_cur_scope->__pyx_v_seen_phrases = ((PyObject*)__pyx_t_3);
   __pyx_t_3 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1003
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1006
  * 
  *         # Do not cache between sentences
  *         self.rules.root = ExtendedTrieNode(phrase_location=PhraseLocation())             # <<<<<<<<<<<<<<
  * 
  *         frontier = []
  */
-  __pyx_t_3 = PyDict_New(); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1003; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyDict_New(); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1006; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_3));
-  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_PhraseLocation)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1003; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_PhraseLocation)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1006; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  if (PyDict_SetItem(__pyx_t_3, ((PyObject *)__pyx_n_s__phrase_location), __pyx_t_1) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1003; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_3, ((PyObject *)__pyx_n_s__phrase_location), __pyx_t_1) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1006; __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_4cdec_2sa_3_sa_ExtendedTrieNode)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_3)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1003; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_ExtendedTrieNode)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_3)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1006; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
   __Pyx_GIVEREF(__pyx_t_1);
@@ -49026,20 +49198,20 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
   __pyx_cur_scope->__pyx_v_self->rules->root = __pyx_t_1;
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1005
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1008
  *         self.rules.root = ExtendedTrieNode(phrase_location=PhraseLocation())
  * 
  *         frontier = []             # <<<<<<<<<<<<<<
  *         for i in range(len(fwords)):
  *             for alt in range(0, len(fwords[i])):
  */
-  __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1005; __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 = 1008; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_GIVEREF(((PyObject *)__pyx_t_1));
   __pyx_cur_scope->__pyx_v_frontier = ((PyObject*)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1006
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1009
  * 
  *         frontier = []
  *         for i in range(len(fwords)):             # <<<<<<<<<<<<<<
@@ -49048,72 +49220,72 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
  */
   __pyx_t_1 = __pyx_cur_scope->__pyx_v_fwords;
   __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 = 1006; __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 = 1009; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   for (__pyx_t_5 = 0; __pyx_t_5 < __pyx_t_2; __pyx_t_5+=1) {
     __pyx_cur_scope->__pyx_v_i = __pyx_t_5;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1007
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1010
  *         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, (i,), alt, 0, self.rules.root, (), False))
  */
-    __pyx_t_1 = __Pyx_GetItemInt(__pyx_cur_scope->__pyx_v_fwords, __pyx_cur_scope->__pyx_v_i, sizeof(int), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1007; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = __Pyx_GetItemInt(__pyx_cur_scope->__pyx_v_fwords, __pyx_cur_scope->__pyx_v_i, sizeof(int), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1010; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_6 = PyObject_Length(__pyx_t_1); if (unlikely(__pyx_t_6 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1007; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = PyObject_Length(__pyx_t_1); if (unlikely(__pyx_t_6 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1010; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     for (__pyx_t_7 = 0; __pyx_t_7 < __pyx_t_6; __pyx_t_7+=1) {
       __pyx_cur_scope->__pyx_v_alt = __pyx_t_7;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1008
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1011
  *         for i in range(len(fwords)):
  *             for alt in range(0, len(fwords[i])):
  *                 if fwords[i][alt][0] != EPSILON:             # <<<<<<<<<<<<<<
  *                     frontier.append((i, i, (i,), alt, 0, self.rules.root, (), False))
  * 
  */
-      __pyx_t_1 = __Pyx_GetItemInt(__pyx_cur_scope->__pyx_v_fwords, __pyx_cur_scope->__pyx_v_i, sizeof(int), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1008; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = __Pyx_GetItemInt(__pyx_cur_scope->__pyx_v_fwords, __pyx_cur_scope->__pyx_v_i, sizeof(int), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1011; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
-      __pyx_t_3 = __Pyx_GetItemInt(__pyx_t_1, __pyx_cur_scope->__pyx_v_alt, sizeof(int), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1008; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = __Pyx_GetItemInt(__pyx_t_1, __pyx_cur_scope->__pyx_v_alt, sizeof(int), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1011; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-      __pyx_t_1 = __Pyx_GetItemInt(__pyx_t_3, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1008; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = __Pyx_GetItemInt(__pyx_t_3, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1011; __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_4cdec_2sa_3_sa_EPSILON); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1008; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = PyInt_FromLong(__pyx_v_4cdec_2sa_3_sa_EPSILON); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1011; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
-      __pyx_t_8 = PyObject_RichCompare(__pyx_t_1, __pyx_t_3, Py_NE); __Pyx_XGOTREF(__pyx_t_8); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1008; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = PyObject_RichCompare(__pyx_t_1, __pyx_t_3, Py_NE); __Pyx_XGOTREF(__pyx_t_8); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1011; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-      __pyx_t_9 = __Pyx_PyObject_IsTrue(__pyx_t_8); if (unlikely(__pyx_t_9 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1008; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_9 = __Pyx_PyObject_IsTrue(__pyx_t_8); if (unlikely(__pyx_t_9 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1011; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
       if (__pyx_t_9) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1009
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1012
  *             for alt in range(0, len(fwords[i])):
  *                 if fwords[i][alt][0] != EPSILON:
  *                     frontier.append((i, i, (i,), alt, 0, self.rules.root, (), False))             # <<<<<<<<<<<<<<
  * 
  *         xroot = None
  */
-        __pyx_t_8 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1009; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_8 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1012; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_8);
-        __pyx_t_3 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1009; __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 = 1012; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_3);
-        __pyx_t_1 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1009; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_1 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1012; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_1);
-        __pyx_t_10 = PyTuple_New(1); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1009; __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 = 1012; __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);
         __pyx_t_1 = 0;
-        __pyx_t_1 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_alt); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1009; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_1 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_alt); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1012; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_1);
-        __pyx_t_11 = __Pyx_PyBool_FromLong(0); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1009; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_11 = __Pyx_PyBool_FromLong(0); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1012; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_11);
-        __pyx_t_12 = PyTuple_New(8); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1009; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_12 = PyTuple_New(8); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1012; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_12);
         PyTuple_SET_ITEM(__pyx_t_12, 0, __pyx_t_8);
         __Pyx_GIVEREF(__pyx_t_8);
@@ -49139,7 +49311,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
         __pyx_t_10 = 0;
         __pyx_t_1 = 0;
         __pyx_t_11 = 0;
-        __pyx_t_13 = __Pyx_PyList_Append(__pyx_cur_scope->__pyx_v_frontier, ((PyObject *)__pyx_t_12)); if (unlikely(__pyx_t_13 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1009; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_13 = __Pyx_PyList_Append(__pyx_cur_scope->__pyx_v_frontier, ((PyObject *)__pyx_t_12)); if (unlikely(__pyx_t_13 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1012; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(((PyObject *)__pyx_t_12)); __pyx_t_12 = 0;
         goto __pyx_L8;
       }
@@ -49147,7 +49319,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
     }
   }
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1011
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1014
  *                     frontier.append((i, i, (i,), alt, 0, self.rules.root, (), False))
  * 
  *         xroot = None             # <<<<<<<<<<<<<<
@@ -49158,7 +49330,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
   __Pyx_GIVEREF(Py_None);
   __pyx_cur_scope->__pyx_v_xroot = Py_None;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1012
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1015
  * 
  *         xroot = None
  *         x1 = sym_setindex(self.category, 1)             # <<<<<<<<<<<<<<
@@ -49167,33 +49339,33 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
  */
   __pyx_cur_scope->__pyx_v_x1 = __pyx_f_4cdec_2sa_3_sa_sym_setindex(__pyx_cur_scope->__pyx_v_self->category, 1);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1013
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1016
  *         xroot = None
  *         x1 = sym_setindex(self.category, 1)
  *         if x1 in self.rules.root.children:             # <<<<<<<<<<<<<<
  *             xroot = self.rules.root.children[x1]
  *         else:
  */
-  __pyx_t_12 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_x1); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1013; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_12 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_x1); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1016; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_12);
-  __pyx_t_11 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_self->rules->root, __pyx_n_s__children); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1013; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_11 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_self->rules->root, __pyx_n_s__children); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1016; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_11);
-  __pyx_t_9 = (__Pyx_PySequence_Contains(__pyx_t_12, __pyx_t_11, Py_EQ)); if (unlikely(__pyx_t_9 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1013; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_9 = (__Pyx_PySequence_Contains(__pyx_t_12, __pyx_t_11, Py_EQ)); if (unlikely(__pyx_t_9 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1016; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
   __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
   __pyx_t_14 = (__pyx_t_9 != 0);
   if (__pyx_t_14) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1014
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1017
  *         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_11 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_self->rules->root, __pyx_n_s__children); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1014; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_11 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_self->rules->root, __pyx_n_s__children); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1017; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_11);
-    __pyx_t_12 = __Pyx_GetItemInt(__pyx_t_11, __pyx_cur_scope->__pyx_v_x1, sizeof(int), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_12) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1014; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_12 = __Pyx_GetItemInt(__pyx_t_11, __pyx_cur_scope->__pyx_v_x1, sizeof(int), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_12) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1017; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_12);
     __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
     __Pyx_GOTREF(__pyx_cur_scope->__pyx_v_xroot);
@@ -49204,21 +49376,21 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
   }
   /*else*/ {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1016
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1019
  *             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_12 = PyDict_New(); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1016; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_12 = PyDict_New(); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1019; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(((PyObject *)__pyx_t_12));
-    if (PyDict_SetItem(__pyx_t_12, ((PyObject *)__pyx_n_s__suffix_link), __pyx_cur_scope->__pyx_v_self->rules->root) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1016; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __pyx_t_11 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_PhraseLocation)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1016; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (PyDict_SetItem(__pyx_t_12, ((PyObject *)__pyx_n_s__suffix_link), __pyx_cur_scope->__pyx_v_self->rules->root) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1019; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_11 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_PhraseLocation)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1019; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_11);
-    if (PyDict_SetItem(__pyx_t_12, ((PyObject *)__pyx_n_s__phrase_location), __pyx_t_11) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1016; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (PyDict_SetItem(__pyx_t_12, ((PyObject *)__pyx_n_s__phrase_location), __pyx_t_11) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1019; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
-    __pyx_t_11 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_ExtendedTrieNode)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_12)); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1016; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_11 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_ExtendedTrieNode)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_12)); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1019; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_11);
     __Pyx_DECREF(((PyObject *)__pyx_t_12)); __pyx_t_12 = 0;
     __Pyx_GOTREF(__pyx_cur_scope->__pyx_v_xroot);
@@ -49226,21 +49398,21 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
     __Pyx_GIVEREF(__pyx_t_11);
     __pyx_t_11 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1017
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1020
  *         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_11 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_self->rules->root, __pyx_n_s__children); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1017; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_11 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_self->rules->root, __pyx_n_s__children); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1020; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_11);
-    if (__Pyx_SetItemInt(__pyx_t_11, __pyx_cur_scope->__pyx_v_x1, __pyx_cur_scope->__pyx_v_xroot, sizeof(int), PyInt_FromLong, 0, 1, 1) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1017; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (__Pyx_SetItemInt(__pyx_t_11, __pyx_cur_scope->__pyx_v_x1, __pyx_cur_scope->__pyx_v_xroot, sizeof(int), PyInt_FromLong, 0, 1, 1) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1020; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
   }
   __pyx_L9:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1019
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1022
  *             self.rules.root.children[x1] = xroot
  * 
  *         for i in range(self.min_gap_size, len(fwords)):             # <<<<<<<<<<<<<<
@@ -49249,81 +49421,81 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
  */
   __pyx_t_11 = __pyx_cur_scope->__pyx_v_fwords;
   __Pyx_INCREF(__pyx_t_11);
-  __pyx_t_2 = PyObject_Length(__pyx_t_11); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1019; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyObject_Length(__pyx_t_11); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1022; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
   for (__pyx_t_5 = __pyx_cur_scope->__pyx_v_self->min_gap_size; __pyx_t_5 < __pyx_t_2; __pyx_t_5+=1) {
     __pyx_cur_scope->__pyx_v_i = __pyx_t_5;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1020
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1023
  * 
  *         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, (i,), alt, self.min_gap_size, xroot, (x1,), True))
  */
-    __pyx_t_11 = __Pyx_GetItemInt(__pyx_cur_scope->__pyx_v_fwords, __pyx_cur_scope->__pyx_v_i, sizeof(int), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_11) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1020; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_11 = __Pyx_GetItemInt(__pyx_cur_scope->__pyx_v_fwords, __pyx_cur_scope->__pyx_v_i, sizeof(int), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_11) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1023; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_11);
-    __pyx_t_6 = PyObject_Length(__pyx_t_11); if (unlikely(__pyx_t_6 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1020; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = PyObject_Length(__pyx_t_11); if (unlikely(__pyx_t_6 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1023; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
     for (__pyx_t_7 = 0; __pyx_t_7 < __pyx_t_6; __pyx_t_7+=1) {
       __pyx_cur_scope->__pyx_v_alt = __pyx_t_7;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1021
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1024
  *         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, (i,), alt, self.min_gap_size, xroot, (x1,), True))
  * 
  */
-      __pyx_t_11 = __Pyx_GetItemInt(__pyx_cur_scope->__pyx_v_fwords, __pyx_cur_scope->__pyx_v_i, sizeof(int), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_11) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1021; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_11 = __Pyx_GetItemInt(__pyx_cur_scope->__pyx_v_fwords, __pyx_cur_scope->__pyx_v_i, sizeof(int), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_11) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1024; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_11);
-      __pyx_t_12 = __Pyx_GetItemInt(__pyx_t_11, __pyx_cur_scope->__pyx_v_alt, sizeof(int), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_12) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1021; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_12 = __Pyx_GetItemInt(__pyx_t_11, __pyx_cur_scope->__pyx_v_alt, sizeof(int), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_12) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1024; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_12);
       __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
-      __pyx_t_11 = __Pyx_GetItemInt(__pyx_t_12, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_11) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1021; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_11 = __Pyx_GetItemInt(__pyx_t_12, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_11) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1024; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_11);
       __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
-      __pyx_t_12 = PyInt_FromLong(__pyx_v_4cdec_2sa_3_sa_EPSILON); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1021; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_12 = PyInt_FromLong(__pyx_v_4cdec_2sa_3_sa_EPSILON); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1024; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_12);
-      __pyx_t_1 = PyObject_RichCompare(__pyx_t_11, __pyx_t_12, Py_NE); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1021; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyObject_RichCompare(__pyx_t_11, __pyx_t_12, Py_NE); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1024; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
       __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
-      __pyx_t_14 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_14 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1021; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_14 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_14 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1024; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
       if (__pyx_t_14) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1022
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1025
  *             for alt in range(0, len(fwords[i])):
  *                 if fwords[i][alt][0] != EPSILON:
  *                     frontier.append((i-self.min_gap_size, i, (i,), alt, self.min_gap_size, xroot, (x1,), True))             # <<<<<<<<<<<<<<
  * 
  *         next_states = []
  */
-        __pyx_t_1 = PyInt_FromLong((__pyx_cur_scope->__pyx_v_i - __pyx_cur_scope->__pyx_v_self->min_gap_size)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1022; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_1 = PyInt_FromLong((__pyx_cur_scope->__pyx_v_i - __pyx_cur_scope->__pyx_v_self->min_gap_size)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1025; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_1);
-        __pyx_t_12 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1022; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_12 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1025; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_12);
-        __pyx_t_11 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1022; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_11 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1025; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_11);
-        __pyx_t_10 = PyTuple_New(1); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1022; __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 = 1025; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_10);
         PyTuple_SET_ITEM(__pyx_t_10, 0, __pyx_t_11);
         __Pyx_GIVEREF(__pyx_t_11);
         __pyx_t_11 = 0;
-        __pyx_t_11 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_alt); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1022; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_11 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_alt); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1025; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_11);
-        __pyx_t_3 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_self->min_gap_size); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1022; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_3 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_self->min_gap_size); 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_8 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_x1); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1022; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_8 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_x1); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1025; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_8);
-        __pyx_t_15 = PyTuple_New(1); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1022; __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 = 1025; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_15);
         PyTuple_SET_ITEM(__pyx_t_15, 0, __pyx_t_8);
         __Pyx_GIVEREF(__pyx_t_8);
         __pyx_t_8 = 0;
-        __pyx_t_8 = __Pyx_PyBool_FromLong(1); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1022; __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 = 1025; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_8);
-        __pyx_t_16 = PyTuple_New(8); if (unlikely(!__pyx_t_16)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1022; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_16 = PyTuple_New(8); if (unlikely(!__pyx_t_16)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1025; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_16);
         PyTuple_SET_ITEM(__pyx_t_16, 0, __pyx_t_1);
         __Pyx_GIVEREF(__pyx_t_1);
@@ -49349,7 +49521,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
         __pyx_t_3 = 0;
         __pyx_t_15 = 0;
         __pyx_t_8 = 0;
-        __pyx_t_13 = __Pyx_PyList_Append(__pyx_cur_scope->__pyx_v_frontier, ((PyObject *)__pyx_t_16)); if (unlikely(__pyx_t_13 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1022; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_13 = __Pyx_PyList_Append(__pyx_cur_scope->__pyx_v_frontier, ((PyObject *)__pyx_t_16)); if (unlikely(__pyx_t_13 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1025; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(((PyObject *)__pyx_t_16)); __pyx_t_16 = 0;
         goto __pyx_L14;
       }
@@ -49357,20 +49529,20 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
     }
   }
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1024
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1027
  *                     frontier.append((i-self.min_gap_size, i, (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_16 = PyList_New(0); if (unlikely(!__pyx_t_16)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1024; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_16 = PyList_New(0); if (unlikely(!__pyx_t_16)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1027; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_16);
   __Pyx_GIVEREF(((PyObject *)__pyx_t_16));
   __pyx_cur_scope->__pyx_v_next_states = ((PyObject*)__pyx_t_16);
   __pyx_t_16 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1025
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1028
  * 
  *         next_states = []
  *         for i in range(len(fwords)):             # <<<<<<<<<<<<<<
@@ -49379,25 +49551,25 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
  */
   __pyx_t_16 = __pyx_cur_scope->__pyx_v_fwords;
   __Pyx_INCREF(__pyx_t_16);
-  __pyx_t_2 = PyObject_Length(__pyx_t_16); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1025; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyObject_Length(__pyx_t_16); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1028; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_16); __pyx_t_16 = 0;
   for (__pyx_t_5 = 0; __pyx_t_5 < __pyx_t_2; __pyx_t_5+=1) {
     __pyx_cur_scope->__pyx_v_i = __pyx_t_5;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1026
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1029
  *         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_16 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_cur_scope->__pyx_v_self), __pyx_n_s__get_next_states); if (unlikely(!__pyx_t_16)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1026; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_16 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_cur_scope->__pyx_v_self), __pyx_n_s__get_next_states); if (unlikely(!__pyx_t_16)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1029; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_16);
-    __pyx_t_8 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1026; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_8 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1029; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_8);
-    __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 = 1026; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __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 = 1029; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_15);
-    __pyx_t_3 = PyTuple_New(3); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1026; __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 = 1029; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_INCREF(__pyx_cur_scope->__pyx_v_fwords);
     PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_cur_scope->__pyx_v_fwords);
@@ -49408,15 +49580,15 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
     __Pyx_GIVEREF(__pyx_t_15);
     __pyx_t_8 = 0;
     __pyx_t_15 = 0;
-    __pyx_t_15 = PyObject_Call(__pyx_t_16, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1026; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_15 = PyObject_Call(__pyx_t_16, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1029; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_15);
     __Pyx_DECREF(__pyx_t_16); __pyx_t_16 = 0;
     __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
-    __pyx_t_13 = __Pyx_PyList_Append(__pyx_cur_scope->__pyx_v_next_states, __pyx_t_15); if (unlikely(__pyx_t_13 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1026; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_13 = __Pyx_PyList_Append(__pyx_cur_scope->__pyx_v_next_states, __pyx_t_15); if (unlikely(__pyx_t_13 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1029; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
   }
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1028
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1031
  *             next_states.append(self.get_next_states(fwords,i,self.min_gap_size))
  * 
  *         while len(frontier) > 0:             # <<<<<<<<<<<<<<
@@ -49424,25 +49596,25 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
  *             for k, i, input_match, alt, pathlen, node, prefix, is_shadow_path in frontier:
  */
   while (1) {
-    __pyx_t_2 = PyList_GET_SIZE(((PyObject *)__pyx_cur_scope->__pyx_v_frontier)); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1028; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyList_GET_SIZE(((PyObject *)__pyx_cur_scope->__pyx_v_frontier)); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1031; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __pyx_t_14 = ((__pyx_t_2 > 0) != 0);
     if (!__pyx_t_14) break;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1029
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1032
  * 
  *         while len(frontier) > 0:
  *             new_frontier = []             # <<<<<<<<<<<<<<
  *             for k, i, input_match, alt, pathlen, node, prefix, is_shadow_path in frontier:
  *                 word_id = fwords[i][alt][0]
  */
-    __pyx_t_15 = PyList_New(0); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1029; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_15 = PyList_New(0); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1032; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_15);
     __Pyx_XGOTREF(((PyObject *)__pyx_cur_scope->__pyx_v_new_frontier));
     __Pyx_XDECREF_SET(__pyx_cur_scope->__pyx_v_new_frontier, ((PyObject*)__pyx_t_15));
     __Pyx_GIVEREF(((PyObject *)__pyx_t_15));
     __pyx_t_15 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1030
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1033
  *         while len(frontier) > 0:
  *             new_frontier = []
  *             for k, i, input_match, alt, pathlen, node, prefix, is_shadow_path in frontier:             # <<<<<<<<<<<<<<
@@ -49453,9 +49625,9 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
     for (;;) {
       if (__pyx_t_2 >= PyList_GET_SIZE(__pyx_t_15)) break;
       #if CYTHON_COMPILING_IN_CPYTHON
-      __pyx_t_3 = PyList_GET_ITEM(__pyx_t_15, __pyx_t_2); __Pyx_INCREF(__pyx_t_3); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1030; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = PyList_GET_ITEM(__pyx_t_15, __pyx_t_2); __Pyx_INCREF(__pyx_t_3); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1033; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #else
-      __pyx_t_3 = PySequence_ITEM(__pyx_t_15, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1030; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = PySequence_ITEM(__pyx_t_15, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1033; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #endif
       if ((likely(PyTuple_CheckExact(__pyx_t_3))) || (PyList_CheckExact(__pyx_t_3))) {
         PyObject* sequence = __pyx_t_3;
@@ -49467,7 +49639,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
         if (unlikely(size != 8)) {
           if (size > 8) __Pyx_RaiseTooManyValuesError(8);
           else if (size >= 0) __Pyx_RaiseNeedMoreValuesError(size);
-          {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1030; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1033; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         }
         #if CYTHON_COMPILING_IN_CPYTHON
         if (likely(PyTuple_CheckExact(sequence))) {
@@ -49501,7 +49673,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
         Py_ssize_t i;
         PyObject** temps[8] = {&__pyx_t_16,&__pyx_t_8,&__pyx_t_11,&__pyx_t_10,&__pyx_t_12,&__pyx_t_1,&__pyx_t_17,&__pyx_t_18};
         for (i=0; i < 8; i++) {
-          PyObject* item = PySequence_ITEM(sequence, i); if (unlikely(!item)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1030; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          PyObject* item = PySequence_ITEM(sequence, i); if (unlikely(!item)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1033; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(item);
           *(temps[i]) = item;
         }
@@ -49511,7 +49683,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
       {
         Py_ssize_t index = -1;
         PyObject** temps[8] = {&__pyx_t_16,&__pyx_t_8,&__pyx_t_11,&__pyx_t_10,&__pyx_t_12,&__pyx_t_1,&__pyx_t_17,&__pyx_t_18};
-        __pyx_t_19 = PyObject_GetIter(__pyx_t_3); if (unlikely(!__pyx_t_19)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1030; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_19 = PyObject_GetIter(__pyx_t_3); if (unlikely(!__pyx_t_19)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1033; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_19);
         __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
         __pyx_t_20 = Py_TYPE(__pyx_t_19)->tp_iternext;
@@ -49520,7 +49692,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
           __Pyx_GOTREF(item);
           *(temps[index]) = item;
         }
-        if (__Pyx_IternextUnpackEndCheck(__pyx_t_20(__pyx_t_19), 8) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1030; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        if (__Pyx_IternextUnpackEndCheck(__pyx_t_20(__pyx_t_19), 8) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1033; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __pyx_t_20 = NULL;
         __Pyx_DECREF(__pyx_t_19); __pyx_t_19 = 0;
         goto __pyx_L22_unpacking_done;
@@ -49528,14 +49700,14 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
         __Pyx_DECREF(__pyx_t_19); __pyx_t_19 = 0;
         __pyx_t_20 = NULL;
         if (__Pyx_IterFinish() == 0) __Pyx_RaiseNeedMoreValuesError(index);
-        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1030; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1033; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __pyx_L22_unpacking_done:;
       }
-      __pyx_t_5 = __Pyx_PyInt_AsInt(__pyx_t_16); if (unlikely((__pyx_t_5 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1030; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_5 = __Pyx_PyInt_AsInt(__pyx_t_16); if (unlikely((__pyx_t_5 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1033; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_16); __pyx_t_16 = 0;
-      __pyx_t_7 = __Pyx_PyInt_AsInt(__pyx_t_8); if (unlikely((__pyx_t_7 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1030; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_7 = __Pyx_PyInt_AsInt(__pyx_t_8); if (unlikely((__pyx_t_7 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1033; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-      __pyx_t_21 = __Pyx_PyInt_AsInt(__pyx_t_10); if (unlikely((__pyx_t_21 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1030; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_21 = __Pyx_PyInt_AsInt(__pyx_t_10); if (unlikely((__pyx_t_21 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1033; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
       __pyx_cur_scope->__pyx_v_k = __pyx_t_5;
       __pyx_cur_scope->__pyx_v_i = __pyx_t_7;
@@ -49561,19 +49733,19 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
       __Pyx_GIVEREF(__pyx_t_18);
       __pyx_t_18 = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1031
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1034
  *             new_frontier = []
  *             for k, i, input_match, 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_3 = __Pyx_GetItemInt(__pyx_cur_scope->__pyx_v_fwords, __pyx_cur_scope->__pyx_v_i, sizeof(int), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1031; __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, 0, 1, 1); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1034; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
-      __pyx_t_18 = __Pyx_GetItemInt(__pyx_t_3, __pyx_cur_scope->__pyx_v_alt, sizeof(int), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_18) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1031; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_18 = __Pyx_GetItemInt(__pyx_t_3, __pyx_cur_scope->__pyx_v_alt, sizeof(int), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_18) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1034; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_18);
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-      __pyx_t_3 = __Pyx_GetItemInt(__pyx_t_18, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1031; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = __Pyx_GetItemInt(__pyx_t_18, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1034; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
       __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_word_id);
@@ -49581,19 +49753,19 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
       __Pyx_GIVEREF(__pyx_t_3);
       __pyx_t_3 = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1032
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1035
  *             for k, i, input_match, 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_3 = __Pyx_GetItemInt(__pyx_cur_scope->__pyx_v_fwords, __pyx_cur_scope->__pyx_v_i, sizeof(int), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1032; __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, 0, 1, 1); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1035; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
-      __pyx_t_18 = __Pyx_GetItemInt(__pyx_t_3, __pyx_cur_scope->__pyx_v_alt, sizeof(int), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_18) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1032; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_18 = __Pyx_GetItemInt(__pyx_t_3, __pyx_cur_scope->__pyx_v_alt, sizeof(int), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_18) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1035; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_18);
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-      __pyx_t_3 = __Pyx_GetItemInt(__pyx_t_18, 2, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1032; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = __Pyx_GetItemInt(__pyx_t_18, 2, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1035; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
       __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_spanlen);
@@ -49601,47 +49773,47 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
       __Pyx_GIVEREF(__pyx_t_3);
       __pyx_t_3 = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1034
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1037
  *                 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_3 = PyInt_FromLong(__pyx_v_4cdec_2sa_3_sa_EPSILON); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1034; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = PyInt_FromLong(__pyx_v_4cdec_2sa_3_sa_EPSILON); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1037; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
-      __pyx_t_18 = PyObject_RichCompare(__pyx_cur_scope->__pyx_v_word_id, __pyx_t_3, Py_EQ); __Pyx_XGOTREF(__pyx_t_18); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1034; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_18 = PyObject_RichCompare(__pyx_cur_scope->__pyx_v_word_id, __pyx_t_3, Py_EQ); __Pyx_XGOTREF(__pyx_t_18); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1037; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-      __pyx_t_14 = __Pyx_PyObject_IsTrue(__pyx_t_18); if (unlikely(__pyx_t_14 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1034; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_14 = __Pyx_PyObject_IsTrue(__pyx_t_18); if (unlikely(__pyx_t_14 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1037; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
       if (__pyx_t_14) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1036
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1039
  *                 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_18 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1036; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_18 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1039; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_18);
-        __pyx_t_3 = PyNumber_Add(__pyx_t_18, __pyx_cur_scope->__pyx_v_spanlen); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1036; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_3 = PyNumber_Add(__pyx_t_18, __pyx_cur_scope->__pyx_v_spanlen); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1039; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_3);
         __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
         __pyx_t_18 = __pyx_cur_scope->__pyx_v_fwords;
         __Pyx_INCREF(__pyx_t_18);
-        __pyx_t_6 = PyObject_Length(__pyx_t_18); if (unlikely(__pyx_t_6 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1036; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_6 = PyObject_Length(__pyx_t_18); if (unlikely(__pyx_t_6 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1039; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
-        __pyx_t_18 = PyInt_FromSsize_t(__pyx_t_6); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1036; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_18 = PyInt_FromSsize_t(__pyx_t_6); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1039; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_18);
-        __pyx_t_17 = PyObject_RichCompare(__pyx_t_3, __pyx_t_18, Py_GE); __Pyx_XGOTREF(__pyx_t_17); if (unlikely(!__pyx_t_17)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1036; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_17 = PyObject_RichCompare(__pyx_t_3, __pyx_t_18, Py_GE); __Pyx_XGOTREF(__pyx_t_17); if (unlikely(!__pyx_t_17)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1039; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
         __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
-        __pyx_t_14 = __Pyx_PyObject_IsTrue(__pyx_t_17); if (unlikely(__pyx_t_14 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1036; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_14 = __Pyx_PyObject_IsTrue(__pyx_t_17); if (unlikely(__pyx_t_14 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1039; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(__pyx_t_17); __pyx_t_17 = 0;
         if (__pyx_t_14) {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1037
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1040
  *                     # skipping because word_id is epsilon
  *                     if i+spanlen >= len(fwords):
  *                         continue             # <<<<<<<<<<<<<<
@@ -49653,43 +49825,43 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
         }
         __pyx_L24:;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1038
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1041
  *                     if i+spanlen >= len(fwords):
  *                         continue
  *                     for nualt in range(0,len(fwords[i+spanlen])):             # <<<<<<<<<<<<<<
  *                         frontier.append((k, i+spanlen, input_match, nualt, pathlen, node, prefix, is_shadow_path))
  *                     continue
  */
-        __pyx_t_17 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_17)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1038; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_17 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_17)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1041; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_17);
-        __pyx_t_18 = PyNumber_Add(__pyx_t_17, __pyx_cur_scope->__pyx_v_spanlen); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1038; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_18 = PyNumber_Add(__pyx_t_17, __pyx_cur_scope->__pyx_v_spanlen); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1041; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_18);
         __Pyx_DECREF(__pyx_t_17); __pyx_t_17 = 0;
-        __pyx_t_17 = PyObject_GetItem(__pyx_cur_scope->__pyx_v_fwords, __pyx_t_18); if (!__pyx_t_17) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1038; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_17 = PyObject_GetItem(__pyx_cur_scope->__pyx_v_fwords, __pyx_t_18); if (!__pyx_t_17) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1041; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_17);
         __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
-        __pyx_t_6 = PyObject_Length(__pyx_t_17); if (unlikely(__pyx_t_6 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1038; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_6 = PyObject_Length(__pyx_t_17); if (unlikely(__pyx_t_6 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1041; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(__pyx_t_17); __pyx_t_17 = 0;
         for (__pyx_t_21 = 0; __pyx_t_21 < __pyx_t_6; __pyx_t_21+=1) {
           __pyx_cur_scope->__pyx_v_nualt = __pyx_t_21;
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1039
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1042
  *                         continue
  *                     for nualt in range(0,len(fwords[i+spanlen])):
  *                         frontier.append((k, i+spanlen, input_match, nualt, pathlen, node, prefix, is_shadow_path))             # <<<<<<<<<<<<<<
  *                     continue
  * 
  */
-          __pyx_t_17 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_k); if (unlikely(!__pyx_t_17)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1039; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_17 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_k); if (unlikely(!__pyx_t_17)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1042; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_17);
-          __pyx_t_18 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1039; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_18 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1042; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_18);
-          __pyx_t_3 = PyNumber_Add(__pyx_t_18, __pyx_cur_scope->__pyx_v_spanlen); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1039; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_3 = PyNumber_Add(__pyx_t_18, __pyx_cur_scope->__pyx_v_spanlen); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1042; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_3);
           __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
-          __pyx_t_18 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_nualt); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1039; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_18 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_nualt); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1042; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_18);
-          __pyx_t_1 = PyTuple_New(8); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1039; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_1 = PyTuple_New(8); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1042; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_1);
           PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_t_17);
           __Pyx_GIVEREF(__pyx_t_17);
@@ -49715,11 +49887,11 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
           __pyx_t_17 = 0;
           __pyx_t_3 = 0;
           __pyx_t_18 = 0;
-          __pyx_t_13 = __Pyx_PyList_Append(__pyx_cur_scope->__pyx_v_frontier, ((PyObject *)__pyx_t_1)); if (unlikely(__pyx_t_13 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1039; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_13 = __Pyx_PyList_Append(__pyx_cur_scope->__pyx_v_frontier, ((PyObject *)__pyx_t_1)); if (unlikely(__pyx_t_13 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1042; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
         }
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1040
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1043
  *                     for nualt in range(0,len(fwords[i+spanlen])):
  *                         frontier.append((k, i+spanlen, input_match, nualt, pathlen, node, prefix, is_shadow_path))
  *                     continue             # <<<<<<<<<<<<<<
@@ -49731,19 +49903,19 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
       }
       __pyx_L23:;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1042
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1045
  *                     continue
  * 
  *                 phrase = prefix + (word_id,)             # <<<<<<<<<<<<<<
  *                 hiero_phrase = Phrase(phrase)
  *                 arity = hiero_phrase.arity()
  */
-      __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1042; __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 = 1045; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
       __Pyx_INCREF(__pyx_cur_scope->__pyx_v_word_id);
       PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_cur_scope->__pyx_v_word_id);
       __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_word_id);
-      __pyx_t_18 = PyNumber_Add(__pyx_cur_scope->__pyx_v_prefix, ((PyObject *)__pyx_t_1)); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1042; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_18 = PyNumber_Add(__pyx_cur_scope->__pyx_v_prefix, ((PyObject *)__pyx_t_1)); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1045; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_18);
       __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
       __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_phrase);
@@ -49751,19 +49923,19 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
       __Pyx_GIVEREF(__pyx_t_18);
       __pyx_t_18 = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1043
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1046
  * 
  *                 phrase = prefix + (word_id,)
  *                 hiero_phrase = Phrase(phrase)             # <<<<<<<<<<<<<<
  *                 arity = hiero_phrase.arity()
  * 
  */
-      __pyx_t_18 = PyTuple_New(1); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1043; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_18 = PyTuple_New(1); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1046; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_18);
       __Pyx_INCREF(__pyx_cur_scope->__pyx_v_phrase);
       PyTuple_SET_ITEM(__pyx_t_18, 0, __pyx_cur_scope->__pyx_v_phrase);
       __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_phrase);
-      __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_Phrase)), ((PyObject *)__pyx_t_18), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1043; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_Phrase)), ((PyObject *)__pyx_t_18), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1046; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
       __Pyx_DECREF(((PyObject *)__pyx_t_18)); __pyx_t_18 = 0;
       __Pyx_XGOTREF(((PyObject *)__pyx_cur_scope->__pyx_v_hiero_phrase));
@@ -49771,23 +49943,23 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
       __Pyx_GIVEREF(__pyx_t_1);
       __pyx_t_1 = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1044
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1047
  *                 phrase = prefix + (word_id,)
  *                 hiero_phrase = Phrase(phrase)
  *                 arity = hiero_phrase.arity()             # <<<<<<<<<<<<<<
  * 
  *                 lookup_required = False
  */
-      __pyx_t_1 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_cur_scope->__pyx_v_hiero_phrase), __pyx_n_s__arity); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1044; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_cur_scope->__pyx_v_hiero_phrase), __pyx_n_s__arity); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1047; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
-      __pyx_t_18 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1044; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_18 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1047; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_18);
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-      __pyx_t_21 = __Pyx_PyInt_AsInt(__pyx_t_18); if (unlikely((__pyx_t_21 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1044; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_21 = __Pyx_PyInt_AsInt(__pyx_t_18); if (unlikely((__pyx_t_21 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1047; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
       __pyx_cur_scope->__pyx_v_arity = __pyx_t_21;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1046
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1049
  *                 arity = hiero_phrase.arity()
  * 
  *                 lookup_required = False             # <<<<<<<<<<<<<<
@@ -49796,30 +49968,30 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
  */
       __pyx_cur_scope->__pyx_v_lookup_required = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1047
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1050
  * 
  *                 lookup_required = False
  *                 if word_id in node.children:             # <<<<<<<<<<<<<<
  *                     if node.children[word_id] is None:
  *                         # Path dead-ends at this node
  */
-      __pyx_t_18 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__children); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1047; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_18 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__children); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1050; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_18);
-      __pyx_t_14 = (__Pyx_PySequence_Contains(__pyx_cur_scope->__pyx_v_word_id, __pyx_t_18, Py_EQ)); if (unlikely(__pyx_t_14 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1047; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_14 = (__Pyx_PySequence_Contains(__pyx_cur_scope->__pyx_v_word_id, __pyx_t_18, Py_EQ)); if (unlikely(__pyx_t_14 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1050; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
       __pyx_t_9 = (__pyx_t_14 != 0);
       if (__pyx_t_9) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1048
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1051
  *                 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_18 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__children); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1048; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_18 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__children); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1051; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_18);
-        __pyx_t_1 = PyObject_GetItem(__pyx_t_18, __pyx_cur_scope->__pyx_v_word_id); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1048; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_1 = PyObject_GetItem(__pyx_t_18, __pyx_cur_scope->__pyx_v_word_id); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1051; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_1);
         __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
         __pyx_t_9 = (__pyx_t_1 == Py_None);
@@ -49827,7 +49999,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
         __pyx_t_14 = (__pyx_t_9 != 0);
         if (__pyx_t_14) {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1050
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1053
  *                     if node.children[word_id] is None:
  *                         # Path dead-ends at this node
  *                         continue             # <<<<<<<<<<<<<<
@@ -49839,16 +50011,16 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
         }
         /*else*/ {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1053
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1056
  *                     else:
  *                         # Path continues at this node
  *                         node = node.children[word_id]             # <<<<<<<<<<<<<<
  *                 else:
  *                     if node.suffix_link is None:
  */
-          __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__children); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1053; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__children); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1056; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_1);
-          __pyx_t_18 = PyObject_GetItem(__pyx_t_1, __pyx_cur_scope->__pyx_v_word_id); if (!__pyx_t_18) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1053; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_18 = PyObject_GetItem(__pyx_t_1, __pyx_cur_scope->__pyx_v_word_id); if (!__pyx_t_18) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1056; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_18);
           __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
           __Pyx_GOTREF(__pyx_cur_scope->__pyx_v_node);
@@ -49861,21 +50033,21 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
       }
       /*else*/ {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1055
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1058
  *                         node = node.children[word_id]
  *                 else:
  *                     if node.suffix_link is None:             # <<<<<<<<<<<<<<
  *                         # Current node is root; lookup required
  *                         lookup_required = True
  */
-        __pyx_t_18 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__suffix_link); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1055; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_18 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__suffix_link); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1058; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_18);
         __pyx_t_14 = (__pyx_t_18 == Py_None);
         __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
         __pyx_t_9 = (__pyx_t_14 != 0);
         if (__pyx_t_9) {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1057
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1060
  *                     if node.suffix_link is None:
  *                         # Current node is root; lookup required
  *                         lookup_required = True             # <<<<<<<<<<<<<<
@@ -49887,36 +50059,36 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
         }
         /*else*/ {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1059
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1062
  *                         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_18 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__suffix_link); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1059; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_18 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__suffix_link); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1062; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_18);
-          __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_t_18, __pyx_n_s__children); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1059; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_t_18, __pyx_n_s__children); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1062; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_1);
           __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
-          __pyx_t_9 = (__Pyx_PySequence_Contains(__pyx_cur_scope->__pyx_v_word_id, __pyx_t_1, Py_EQ)); if (unlikely(__pyx_t_9 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1059; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_9 = (__Pyx_PySequence_Contains(__pyx_cur_scope->__pyx_v_word_id, __pyx_t_1, Py_EQ)); if (unlikely(__pyx_t_9 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1062; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
           __pyx_t_14 = (__pyx_t_9 != 0);
           if (__pyx_t_14) {
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1060
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1063
  *                     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_1 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__suffix_link); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1060; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__suffix_link); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1063; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_1);
-            __pyx_t_18 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s__children); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1060; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_18 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s__children); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1063; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_18);
             __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-            __pyx_t_1 = PyObject_GetItem(__pyx_t_18, __pyx_cur_scope->__pyx_v_word_id); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1060; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_1 = PyObject_GetItem(__pyx_t_18, __pyx_cur_scope->__pyx_v_word_id); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1063; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_1);
             __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
             __pyx_t_14 = (__pyx_t_1 == Py_None);
@@ -49924,19 +50096,19 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
             __pyx_t_9 = (__pyx_t_14 != 0);
             if (__pyx_t_9) {
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1062
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1065
  *                             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_1 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__children); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1062; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__children); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1065; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_1);
-              if (PyObject_SetItem(__pyx_t_1, __pyx_cur_scope->__pyx_v_word_id, Py_None) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1062; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              if (PyObject_SetItem(__pyx_t_1, __pyx_cur_scope->__pyx_v_word_id, Py_None) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1065; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1063
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1066
  *                                 # Suffix link reports path is dead end
  *                                 node.children[word_id] = None
  *                                 continue             # <<<<<<<<<<<<<<
@@ -49948,7 +50120,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
             }
             /*else*/ {
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1066
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1069
  *                             else:
  *                                 # Suffix link indicates lookup is reqired
  *                                 lookup_required = True             # <<<<<<<<<<<<<<
@@ -49962,18 +50134,18 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
           }
           /*else*/ {
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1069
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1072
  *                         else:
  *                             #ERROR: We never get here
  *                             raise Exception("Keyword trie error")             # <<<<<<<<<<<<<<
  *                 # checking whether lookup_required
  *                 if lookup_required:
  */
-            __pyx_t_1 = PyObject_Call(__pyx_builtin_Exception, ((PyObject *)__pyx_k_tuple_127), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1069; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_1 = PyObject_Call(__pyx_builtin_Exception, ((PyObject *)__pyx_k_tuple_127), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1072; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_1);
             __Pyx_Raise(__pyx_t_1, 0, 0, 0);
             __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-            {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1069; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1072; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           }
           __pyx_L30:;
         }
@@ -49981,7 +50153,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
       }
       __pyx_L27:;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1071
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1074
  *                             raise Exception("Keyword trie error")
  *                 # checking whether lookup_required
  *                 if lookup_required:             # <<<<<<<<<<<<<<
@@ -49991,7 +50163,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
       __pyx_t_9 = (__pyx_cur_scope->__pyx_v_lookup_required != 0);
       if (__pyx_t_9) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1072
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1075
  *                 # checking whether lookup_required
  *                 if lookup_required:
  *                     new_node = None             # <<<<<<<<<<<<<<
@@ -50003,66 +50175,66 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
         __Pyx_XDECREF_SET(__pyx_cur_scope->__pyx_v_new_node, Py_None);
         __Pyx_GIVEREF(Py_None);
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1073
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1076
  *                 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_9 = __Pyx_PyObject_IsTrue(__pyx_cur_scope->__pyx_v_is_shadow_path); if (unlikely(__pyx_t_9 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1073; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_9 = __Pyx_PyObject_IsTrue(__pyx_cur_scope->__pyx_v_is_shadow_path); if (unlikely(__pyx_t_9 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1076; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         if (__pyx_t_9) {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1076
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1079
  *                         # 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_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1076; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1079; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(((PyObject *)__pyx_t_1));
-          __pyx_t_18 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__suffix_link); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1076; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_18 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__suffix_link); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1079; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_18);
-          __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_18, __pyx_n_s__children); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1076; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_18, __pyx_n_s__children); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1079; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_3);
           __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
-          __pyx_t_18 = PyObject_GetItem(__pyx_t_3, __pyx_cur_scope->__pyx_v_word_id); if (!__pyx_t_18) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1076; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_18 = PyObject_GetItem(__pyx_t_3, __pyx_cur_scope->__pyx_v_word_id); if (!__pyx_t_18) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1079; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_18);
           __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-          __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_18, __pyx_n_s__phrase_location); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1076; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_18, __pyx_n_s__phrase_location); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1079; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_3);
           __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
-          if (PyDict_SetItem(__pyx_t_1, ((PyObject *)__pyx_n_s__phrase_location), __pyx_t_3) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1076; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          if (PyDict_SetItem(__pyx_t_1, ((PyObject *)__pyx_n_s__phrase_location), __pyx_t_3) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1079; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1077
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1080
  *                         # 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_3 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__suffix_link); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1077; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__suffix_link); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1080; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_3);
-          __pyx_t_18 = __Pyx_PyObject_GetAttrStr(__pyx_t_3, __pyx_n_s__children); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1077; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_18 = __Pyx_PyObject_GetAttrStr(__pyx_t_3, __pyx_n_s__children); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1080; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_18);
           __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-          __pyx_t_3 = PyObject_GetItem(__pyx_t_18, __pyx_cur_scope->__pyx_v_word_id); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1077; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_3 = PyObject_GetItem(__pyx_t_18, __pyx_cur_scope->__pyx_v_word_id); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1080; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_3);
           __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
-          if (PyDict_SetItem(__pyx_t_1, ((PyObject *)__pyx_n_s__suffix_link), __pyx_t_3) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1076; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          if (PyDict_SetItem(__pyx_t_1, ((PyObject *)__pyx_n_s__suffix_link), __pyx_t_3) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1079; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1078
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1081
  *                         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_1, ((PyObject *)__pyx_n_s__phrase), ((PyObject *)__pyx_cur_scope->__pyx_v_hiero_phrase)) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1076; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-          __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_ExtendedTrieNode)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_1)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1076; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          if (PyDict_SetItem(__pyx_t_1, ((PyObject *)__pyx_n_s__phrase), ((PyObject *)__pyx_cur_scope->__pyx_v_hiero_phrase)) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1079; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_ExtendedTrieNode)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_1)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1079; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_3);
           __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
           __Pyx_GOTREF(__pyx_cur_scope->__pyx_v_new_node);
@@ -50073,7 +50245,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
         }
         /*else*/ {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1080
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1083
  *                                 phrase=hiero_phrase)
  *                     else:
  *                         if arity > 0:             # <<<<<<<<<<<<<<
@@ -50083,16 +50255,16 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
           __pyx_t_9 = ((__pyx_cur_scope->__pyx_v_arity > 0) != 0);
           if (__pyx_t_9) {
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1082
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1085
  *                         if arity > 0:
  *                             # Intersecting because of arity > 0
  *                             intersect_start_time = monitor_cpu()             # <<<<<<<<<<<<<<
  *                             phrase_location = self.intersect(node, node.suffix_link.children[word_id], hiero_phrase)
  *                             intersect_stop_time = monitor_cpu()
  */
-            __pyx_t_3 = __Pyx_GetModuleGlobalName(__pyx_n_s__monitor_cpu); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1082; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_3 = __Pyx_GetModuleGlobalName(__pyx_n_s__monitor_cpu); if (unlikely(!__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_1 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1082; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_1 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1085; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_1);
             __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
             __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_intersect_start_time);
@@ -50100,22 +50272,22 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
             __Pyx_GIVEREF(__pyx_t_1);
             __pyx_t_1 = 0;
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1083
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1086
  *                             # Intersecting because of arity > 0
  *                             intersect_start_time = monitor_cpu()
  *                             phrase_location = self.intersect(node, node.suffix_link.children[word_id], hiero_phrase)             # <<<<<<<<<<<<<<
  *                             intersect_stop_time = monitor_cpu()
  *                             self.intersect_time += intersect_stop_time - intersect_start_time
  */
-            __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__suffix_link); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1083; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__suffix_link); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1086; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_1);
-            __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s__children); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1083; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s__children); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1086; __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_GetItem(__pyx_t_3, __pyx_cur_scope->__pyx_v_word_id); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1083; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_1 = PyObject_GetItem(__pyx_t_3, __pyx_cur_scope->__pyx_v_word_id); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1086; __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 *)((struct __pyx_vtabstruct_4cdec_2sa_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_1, __pyx_cur_scope->__pyx_v_hiero_phrase)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1083; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_3 = ((PyObject *)((struct __pyx_vtabstruct_4cdec_2sa_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_1, __pyx_cur_scope->__pyx_v_hiero_phrase)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1086; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_3);
             __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
             __Pyx_XGOTREF(((PyObject *)__pyx_cur_scope->__pyx_v_phrase_location));
@@ -50123,16 +50295,16 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
             __Pyx_GIVEREF(__pyx_t_3);
             __pyx_t_3 = 0;
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1084
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1087
  *                             intersect_start_time = monitor_cpu()
  *                             phrase_location = self.intersect(node, node.suffix_link.children[word_id], hiero_phrase)
  *                             intersect_stop_time = monitor_cpu()             # <<<<<<<<<<<<<<
  *                             self.intersect_time += intersect_stop_time - intersect_start_time
  *                         else:
  */
-            __pyx_t_3 = __Pyx_GetModuleGlobalName(__pyx_n_s__monitor_cpu); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1084; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_3 = __Pyx_GetModuleGlobalName(__pyx_n_s__monitor_cpu); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1087; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_3);
-            __pyx_t_1 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1084; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_1 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1087; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_1);
             __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
             __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_intersect_stop_time);
@@ -50140,66 +50312,66 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
             __Pyx_GIVEREF(__pyx_t_1);
             __pyx_t_1 = 0;
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1085
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1088
  *                             phrase_location = self.intersect(node, node.suffix_link.children[word_id], hiero_phrase)
  *                             intersect_stop_time = monitor_cpu()
  *                             self.intersect_time += intersect_stop_time - intersect_start_time             # <<<<<<<<<<<<<<
  *                         else:
  *                             # Suffix array search
  */
-            __pyx_t_1 = PyFloat_FromDouble(__pyx_cur_scope->__pyx_v_self->intersect_time); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1085; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_1 = PyFloat_FromDouble(__pyx_cur_scope->__pyx_v_self->intersect_time); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1088; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_1);
-            __pyx_t_3 = PyNumber_Subtract(__pyx_cur_scope->__pyx_v_intersect_stop_time, __pyx_cur_scope->__pyx_v_intersect_start_time); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1085; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_3 = PyNumber_Subtract(__pyx_cur_scope->__pyx_v_intersect_stop_time, __pyx_cur_scope->__pyx_v_intersect_start_time); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1088; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_3);
-            __pyx_t_18 = PyNumber_InPlaceAdd(__pyx_t_1, __pyx_t_3); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1085; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_18 = PyNumber_InPlaceAdd(__pyx_t_1, __pyx_t_3); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1088; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_18);
             __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
             __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-            __pyx_t_4 = __pyx_PyFloat_AsFloat(__pyx_t_18); if (unlikely((__pyx_t_4 == (float)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1085; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_4 = __pyx_PyFloat_AsFloat(__pyx_t_18); if (unlikely((__pyx_t_4 == (float)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1088; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
             __pyx_cur_scope->__pyx_v_self->intersect_time = __pyx_t_4;
             goto __pyx_L34;
           }
           /*else*/ {
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1088
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1091
  *                         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_18 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__phrase_location); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1088; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_18 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__phrase_location); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1091; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_18);
-            if (!(likely(((__pyx_t_18) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_18, __pyx_ptype_4cdec_2sa_3_sa_PhraseLocation))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1088; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            if (!(likely(((__pyx_t_18) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_18, __pyx_ptype_4cdec_2sa_3_sa_PhraseLocation))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1091; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_XGOTREF(((PyObject *)__pyx_cur_scope->__pyx_v_phrase_location));
             __Pyx_XDECREF_SET(__pyx_cur_scope->__pyx_v_phrase_location, ((struct __pyx_obj_4cdec_2sa_3_sa_PhraseLocation *)__pyx_t_18));
             __Pyx_GIVEREF(__pyx_t_18);
             __pyx_t_18 = 0;
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1089
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1092
  *                             # 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_18 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_cur_scope->__pyx_v_self->fsa), __pyx_n_s__lookup); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1089; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_18 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_cur_scope->__pyx_v_self->fsa), __pyx_n_s__lookup); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1092; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_18);
-            __pyx_t_3 = __Pyx_GetItemInt(__pyx_cur_scope->__pyx_v_phrase, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1089; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_3 = __Pyx_GetItemInt(__pyx_cur_scope->__pyx_v_phrase, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1092; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_3);
-            __pyx_t_21 = __Pyx_PyInt_AsInt(__pyx_t_3); if (unlikely((__pyx_t_21 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1089; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_21 = __Pyx_PyInt_AsInt(__pyx_t_3); if (unlikely((__pyx_t_21 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1092; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-            __pyx_t_3 = __Pyx_PyBytes_FromString(__pyx_f_4cdec_2sa_3_sa_sym_tostring(__pyx_t_21)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1089; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_3 = __Pyx_PyBytes_FromString(__pyx_f_4cdec_2sa_3_sa_sym_tostring(__pyx_t_21)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1092; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(((PyObject *)__pyx_t_3));
-            __pyx_t_6 = PyObject_Length(__pyx_cur_scope->__pyx_v_phrase); if (unlikely(__pyx_t_6 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1089; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-            __pyx_t_1 = PyInt_FromSsize_t((__pyx_t_6 - 1)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1089; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_6 = PyObject_Length(__pyx_cur_scope->__pyx_v_phrase); if (unlikely(__pyx_t_6 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1092; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_1 = PyInt_FromSsize_t((__pyx_t_6 - 1)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1092; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_1);
-            __pyx_t_17 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_phrase_location->sa_low); if (unlikely(!__pyx_t_17)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1089; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_17 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_phrase_location->sa_low); if (unlikely(!__pyx_t_17)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1092; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_17);
-            __pyx_t_12 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_phrase_location->sa_high); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1089; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_12 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_phrase_location->sa_high); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1092; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_12);
-            __pyx_t_10 = PyTuple_New(4); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1089; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_10 = PyTuple_New(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);
             PyTuple_SET_ITEM(__pyx_t_10, 0, ((PyObject *)__pyx_t_3));
             __Pyx_GIVEREF(((PyObject *)__pyx_t_3));
@@ -50213,7 +50385,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
             __pyx_t_1 = 0;
             __pyx_t_17 = 0;
             __pyx_t_12 = 0;
-            __pyx_t_12 = PyObject_Call(__pyx_t_18, ((PyObject *)__pyx_t_10), NULL); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1089; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_12 = PyObject_Call(__pyx_t_18, ((PyObject *)__pyx_t_10), NULL); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1092; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_12);
             __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
             __Pyx_DECREF(((PyObject *)__pyx_t_10)); __pyx_t_10 = 0;
@@ -50222,7 +50394,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
             __Pyx_GIVEREF(__pyx_t_12);
             __pyx_t_12 = 0;
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1090
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1093
  *                             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:             # <<<<<<<<<<<<<<
@@ -50233,24 +50405,24 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
             __pyx_t_14 = (__pyx_t_9 != 0);
             if (__pyx_t_14) {
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1091
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1094
  *                             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_12 = PyDict_New(); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1091; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_12 = PyDict_New(); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1094; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(((PyObject *)__pyx_t_12));
-              __pyx_t_10 = __Pyx_GetItemInt(__pyx_cur_scope->__pyx_v_sa_range, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_10) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1091; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_10 = __Pyx_GetItemInt(__pyx_cur_scope->__pyx_v_sa_range, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_10) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1094; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_10);
-              if (PyDict_SetItem(__pyx_t_12, ((PyObject *)__pyx_n_s__sa_low), __pyx_t_10) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1091; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              if (PyDict_SetItem(__pyx_t_12, ((PyObject *)__pyx_n_s__sa_low), __pyx_t_10) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1094; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-              __pyx_t_10 = __Pyx_GetItemInt(__pyx_cur_scope->__pyx_v_sa_range, 1, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_10) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1091; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_10 = __Pyx_GetItemInt(__pyx_cur_scope->__pyx_v_sa_range, 1, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_10) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1094; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_10);
-              if (PyDict_SetItem(__pyx_t_12, ((PyObject *)__pyx_n_s__sa_high), __pyx_t_10) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1091; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              if (PyDict_SetItem(__pyx_t_12, ((PyObject *)__pyx_n_s__sa_high), __pyx_t_10) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1094; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-              __pyx_t_10 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_PhraseLocation)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_12)); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1091; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_10 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_PhraseLocation)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_12)); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1094; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_10);
               __Pyx_DECREF(((PyObject *)__pyx_t_12)); __pyx_t_12 = 0;
               __Pyx_GOTREF(((PyObject *)__pyx_cur_scope->__pyx_v_phrase_location));
@@ -50261,7 +50433,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
             }
             /*else*/ {
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1093
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1096
  *                                 phrase_location = PhraseLocation(sa_low=sa_range[0], sa_high=sa_range[1])
  *                             else:
  *                                 phrase_location = None             # <<<<<<<<<<<<<<
@@ -50277,7 +50449,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
           }
           __pyx_L34:;
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1095
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1098
  *                                 phrase_location = None
  * 
  *                         if phrase_location is None:             # <<<<<<<<<<<<<<
@@ -50288,19 +50460,19 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
           __pyx_t_9 = (__pyx_t_14 != 0);
           if (__pyx_t_9) {
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1096
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1099
  * 
  *                         if phrase_location is None:
  *                             node.children[word_id] = None             # <<<<<<<<<<<<<<
  *                             # Search failed
  *                             continue
  */
-            __pyx_t_10 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__children); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1096; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_10 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__children); 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);
-            if (PyObject_SetItem(__pyx_t_10, __pyx_cur_scope->__pyx_v_word_id, Py_None) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1096; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            if (PyObject_SetItem(__pyx_t_10, __pyx_cur_scope->__pyx_v_word_id, Py_None) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1099; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1098
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1101
  *                             node.children[word_id] = None
  *                             # Search failed
  *                             continue             # <<<<<<<<<<<<<<
@@ -50312,7 +50484,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
           }
           __pyx_L36:;
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1100
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1103
  *                             continue
  *                         # Search succeeded
  *                         suffix_link = self.rules.root             # <<<<<<<<<<<<<<
@@ -50326,33 +50498,33 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
           __Pyx_GIVEREF(__pyx_t_10);
           __pyx_t_10 = 0;
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1101
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1104
  *                         # 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_10 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__suffix_link); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1101; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_10 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__suffix_link); 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);
           __pyx_t_9 = (__pyx_t_10 != Py_None);
           __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
           __pyx_t_14 = (__pyx_t_9 != 0);
           if (__pyx_t_14) {
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1102
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1105
  *                         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_10 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__suffix_link); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1102; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_10 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__suffix_link); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1105; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_10);
-            __pyx_t_12 = __Pyx_PyObject_GetAttrStr(__pyx_t_10, __pyx_n_s__children); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1102; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_12 = __Pyx_PyObject_GetAttrStr(__pyx_t_10, __pyx_n_s__children); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1105; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_12);
             __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-            __pyx_t_10 = PyObject_GetItem(__pyx_t_12, __pyx_cur_scope->__pyx_v_word_id); if (!__pyx_t_10) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1102; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_10 = PyObject_GetItem(__pyx_t_12, __pyx_cur_scope->__pyx_v_word_id); if (!__pyx_t_10) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1105; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_10);
             __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
             __Pyx_GOTREF(__pyx_cur_scope->__pyx_v_suffix_link);
@@ -50363,35 +50535,35 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
           }
           __pyx_L37:;
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1103
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1106
  *                         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_10 = PyDict_New(); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1103; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_10 = PyDict_New(); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1106; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(((PyObject *)__pyx_t_10));
-          if (PyDict_SetItem(__pyx_t_10, ((PyObject *)__pyx_n_s__phrase_location), ((PyObject *)__pyx_cur_scope->__pyx_v_phrase_location)) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1103; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          if (PyDict_SetItem(__pyx_t_10, ((PyObject *)__pyx_n_s__phrase_location), ((PyObject *)__pyx_cur_scope->__pyx_v_phrase_location)) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1106; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1104
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1107
  *                             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_10, ((PyObject *)__pyx_n_s__suffix_link), __pyx_cur_scope->__pyx_v_suffix_link) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1103; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          if (PyDict_SetItem(__pyx_t_10, ((PyObject *)__pyx_n_s__suffix_link), __pyx_cur_scope->__pyx_v_suffix_link) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1106; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1105
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1108
  *                         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_10, ((PyObject *)__pyx_n_s__phrase), ((PyObject *)__pyx_cur_scope->__pyx_v_hiero_phrase)) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1103; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-          __pyx_t_12 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_ExtendedTrieNode)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_10)); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1103; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          if (PyDict_SetItem(__pyx_t_10, ((PyObject *)__pyx_n_s__phrase), ((PyObject *)__pyx_cur_scope->__pyx_v_hiero_phrase)) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1106; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_12 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_ExtendedTrieNode)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_10)); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1106; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_12);
           __Pyx_DECREF(((PyObject *)__pyx_t_10)); __pyx_t_10 = 0;
           __Pyx_GOTREF(__pyx_cur_scope->__pyx_v_new_node);
@@ -50401,19 +50573,19 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
         }
         __pyx_L33:;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1106
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1109
  *                                 suffix_link=suffix_link,
  *                                 phrase=hiero_phrase)
  *                     node.children[word_id] = new_node             # <<<<<<<<<<<<<<
  *                     node = new_node
  * 
  */
-        __pyx_t_12 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__children); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1106; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_12 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__children); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1109; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_12);
-        if (PyObject_SetItem(__pyx_t_12, __pyx_cur_scope->__pyx_v_word_id, __pyx_cur_scope->__pyx_v_new_node) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1106; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        if (PyObject_SetItem(__pyx_t_12, __pyx_cur_scope->__pyx_v_word_id, __pyx_cur_scope->__pyx_v_new_node) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1109; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1107
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1110
  *                                 phrase=hiero_phrase)
  *                     node.children[word_id] = new_node
  *                     node = new_node             # <<<<<<<<<<<<<<
@@ -50425,7 +50597,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
         __Pyx_DECREF_SET(__pyx_cur_scope->__pyx_v_node, __pyx_cur_scope->__pyx_v_new_node);
         __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_new_node);
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1112
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1115
  *                     This should happen before we get to extraction (so that
  *                     the node will exist if needed)'''
  *                     if arity < self.max_nonterminals:             # <<<<<<<<<<<<<<
@@ -50435,31 +50607,31 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
         __pyx_t_14 = ((__pyx_cur_scope->__pyx_v_arity < __pyx_cur_scope->__pyx_v_self->max_nonterminals) != 0);
         if (__pyx_t_14) {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1113
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1116
  *                     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_12 = PyInt_FromLong((__pyx_cur_scope->__pyx_v_arity + 1)); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1113; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_12 = PyInt_FromLong((__pyx_cur_scope->__pyx_v_arity + 1)); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1116; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_12);
           __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_xcat_index);
           __Pyx_XDECREF_SET(__pyx_cur_scope->__pyx_v_xcat_index, __pyx_t_12);
           __Pyx_GIVEREF(__pyx_t_12);
           __pyx_t_12 = 0;
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1114
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1117
  *                     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_21 = __Pyx_PyInt_AsInt(__pyx_cur_scope->__pyx_v_xcat_index); if (unlikely((__pyx_t_21 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1114; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_21 = __Pyx_PyInt_AsInt(__pyx_cur_scope->__pyx_v_xcat_index); if (unlikely((__pyx_t_21 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1117; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __pyx_cur_scope->__pyx_v_xcat = __pyx_f_4cdec_2sa_3_sa_sym_setindex(__pyx_cur_scope->__pyx_v_self->category, __pyx_t_21);
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1115
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1118
  *                         xcat_index = arity+1
  *                         xcat = sym_setindex(self.category, xcat_index)
  *                         suffix_link_xcat_index = xcat_index             # <<<<<<<<<<<<<<
@@ -50471,24 +50643,24 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
           __Pyx_XDECREF_SET(__pyx_cur_scope->__pyx_v_suffix_link_xcat_index, __pyx_cur_scope->__pyx_v_xcat_index);
           __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_xcat_index);
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1116
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1119
  *                         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_14 = __Pyx_PyObject_IsTrue(__pyx_cur_scope->__pyx_v_is_shadow_path); if (unlikely(__pyx_t_14 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1116; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_14 = __Pyx_PyObject_IsTrue(__pyx_cur_scope->__pyx_v_is_shadow_path); if (unlikely(__pyx_t_14 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1119; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           if (__pyx_t_14) {
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1117
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1120
  *                         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_12 = PyNumber_Subtract(__pyx_cur_scope->__pyx_v_xcat_index, __pyx_int_1); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1117; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_12 = PyNumber_Subtract(__pyx_cur_scope->__pyx_v_xcat_index, __pyx_int_1); 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_GOTREF(__pyx_cur_scope->__pyx_v_suffix_link_xcat_index);
             __Pyx_DECREF_SET(__pyx_cur_scope->__pyx_v_suffix_link_xcat_index, __pyx_t_12);
@@ -50498,159 +50670,159 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
           }
           __pyx_L39:;
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1118
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1121
  *                         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_21 = __Pyx_PyInt_AsInt(__pyx_cur_scope->__pyx_v_suffix_link_xcat_index); if (unlikely((__pyx_t_21 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1118; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_21 = __Pyx_PyInt_AsInt(__pyx_cur_scope->__pyx_v_suffix_link_xcat_index); if (unlikely((__pyx_t_21 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1121; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __pyx_cur_scope->__pyx_v_suffix_link_xcat = __pyx_f_4cdec_2sa_3_sa_sym_setindex(__pyx_cur_scope->__pyx_v_self->category, __pyx_t_21);
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1119
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1122
  *                             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_12 = PyDict_New(); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1119; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_12 = PyDict_New(); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1122; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(((PyObject *)__pyx_t_12));
-          __pyx_t_10 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__phrase_location); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1119; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_10 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__phrase_location); 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);
-          if (PyDict_SetItem(__pyx_t_12, ((PyObject *)__pyx_n_s__phrase_location), __pyx_t_10) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1119; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          if (PyDict_SetItem(__pyx_t_12, ((PyObject *)__pyx_n_s__phrase_location), __pyx_t_10) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1122; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1120
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1123
  *                         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 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__suffix_link); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1120; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_10 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__suffix_link); 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_18 = __Pyx_PyObject_GetAttrStr(__pyx_t_10, __pyx_n_s__children); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1120; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_18 = __Pyx_PyObject_GetAttrStr(__pyx_t_10, __pyx_n_s__children); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1123; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_18);
           __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-          __pyx_t_10 = __Pyx_GetItemInt(__pyx_t_18, __pyx_cur_scope->__pyx_v_suffix_link_xcat, sizeof(int), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_10) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1120; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_10 = __Pyx_GetItemInt(__pyx_t_18, __pyx_cur_scope->__pyx_v_suffix_link_xcat, sizeof(int), PyInt_FromLong, 0, 1, 1); if (!__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_18); __pyx_t_18 = 0;
-          if (PyDict_SetItem(__pyx_t_12, ((PyObject *)__pyx_n_s__suffix_link), __pyx_t_10) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1119; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          if (PyDict_SetItem(__pyx_t_12, ((PyObject *)__pyx_n_s__suffix_link), __pyx_t_10) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1122; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1121
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1124
  *                         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_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_t_10 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_xcat); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1124; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_10);
-          __pyx_t_18 = PyTuple_New(1); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1121; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_18 = PyTuple_New(1); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1124; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_18);
           PyTuple_SET_ITEM(__pyx_t_18, 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_18)); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1121; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_10 = PyNumber_Add(__pyx_cur_scope->__pyx_v_phrase, ((PyObject *)__pyx_t_18)); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1124; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_10);
           __Pyx_DECREF(((PyObject *)__pyx_t_18)); __pyx_t_18 = 0;
-          __pyx_t_18 = PyTuple_New(1); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1121; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_18 = PyTuple_New(1); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1124; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_18);
           PyTuple_SET_ITEM(__pyx_t_18, 0, __pyx_t_10);
           __Pyx_GIVEREF(__pyx_t_10);
           __pyx_t_10 = 0;
-          __pyx_t_10 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_Phrase)), ((PyObject *)__pyx_t_18), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1121; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_10 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_Phrase)), ((PyObject *)__pyx_t_18), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1124; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_10);
           __Pyx_DECREF(((PyObject *)__pyx_t_18)); __pyx_t_18 = 0;
-          if (PyDict_SetItem(__pyx_t_12, ((PyObject *)__pyx_n_s__phrase), __pyx_t_10) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1119; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          if (PyDict_SetItem(__pyx_t_12, ((PyObject *)__pyx_n_s__phrase), __pyx_t_10) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1122; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-          __pyx_t_10 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_ExtendedTrieNode)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_12)); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1119; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_10 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_ExtendedTrieNode)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_12)); 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(((PyObject *)__pyx_t_12)); __pyx_t_12 = 0;
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1119
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1122
  *                             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_12 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__children); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1119; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_12 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__children); 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);
-          if (__Pyx_SetItemInt(__pyx_t_12, __pyx_cur_scope->__pyx_v_xcat, __pyx_t_10, sizeof(int), PyInt_FromLong, 0, 1, 1) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1119; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          if (__Pyx_SetItemInt(__pyx_t_12, __pyx_cur_scope->__pyx_v_xcat, __pyx_t_10, sizeof(int), PyInt_FromLong, 0, 1, 1) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1122; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
           __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
           goto __pyx_L38;
         }
         __pyx_L38:;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1124
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1127
  * 
  *                     # 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_14 = __Pyx_PyObject_IsTrue(__pyx_cur_scope->__pyx_v_is_shadow_path); if (unlikely(__pyx_t_14 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1124; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_14 = __Pyx_PyObject_IsTrue(__pyx_cur_scope->__pyx_v_is_shadow_path); if (unlikely(__pyx_t_14 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1127; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __pyx_t_9 = ((!__pyx_t_14) != 0);
         if (__pyx_t_9) {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1125
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1128
  *                     # 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_10 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_cur_scope->__pyx_v_self->sampler), __pyx_n_s__sample); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1125; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_10 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_cur_scope->__pyx_v_self->sampler), __pyx_n_s__sample); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1128; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_10);
-          __pyx_t_12 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__phrase_location); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1125; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_12 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__phrase_location); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1128; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_12);
-          __pyx_t_18 = PyTuple_New(1); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1125; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_18 = PyTuple_New(1); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1128; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_18);
           PyTuple_SET_ITEM(__pyx_t_18, 0, __pyx_t_12);
           __Pyx_GIVEREF(__pyx_t_12);
           __pyx_t_12 = 0;
-          __pyx_t_12 = PyObject_Call(__pyx_t_10, ((PyObject *)__pyx_t_18), NULL); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1125; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_12 = PyObject_Call(__pyx_t_10, ((PyObject *)__pyx_t_18), NULL); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1128; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_12);
           __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
           __Pyx_DECREF(((PyObject *)__pyx_t_18)); __pyx_t_18 = 0;
-          if (!(likely(((__pyx_t_12) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_12, __pyx_ptype_4cdec_2sa_3_sa_IntList))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1125; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          if (!(likely(((__pyx_t_12) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_12, __pyx_ptype_4cdec_2sa_3_sa_IntList))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1128; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_XGOTREF(((PyObject *)__pyx_cur_scope->__pyx_v_sample));
           __Pyx_XDECREF_SET(__pyx_cur_scope->__pyx_v_sample, ((struct __pyx_obj_4cdec_2sa_3_sa_IntList *)__pyx_t_12));
           __Pyx_GIVEREF(__pyx_t_12);
           __pyx_t_12 = 0;
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1126
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1129
  *                     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_12 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__phrase_location); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1126; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_12 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__phrase_location); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1129; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_12);
           __pyx_t_21 = ((struct __pyx_obj_4cdec_2sa_3_sa_PhraseLocation *)__pyx_t_12)->num_subpatterns;
           __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
           __pyx_cur_scope->__pyx_v_num_subpatterns = __pyx_t_21;
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1127
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1130
  *                         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_12 = PyDict_New(); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1127; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_12 = PyDict_New(); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1130; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(((PyObject *)__pyx_t_12));
-          __pyx_t_18 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_num_subpatterns); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1127; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_18 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_num_subpatterns); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1130; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_18);
-          if (PyDict_SetItem(__pyx_t_12, ((PyObject *)__pyx_n_s__initial_len), __pyx_t_18) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1127; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          if (PyDict_SetItem(__pyx_t_12, ((PyObject *)__pyx_n_s__initial_len), __pyx_t_18) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1130; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
-          __pyx_t_18 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_12)); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1127; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_18 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), ((PyObject *)__pyx_t_12)); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1130; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_18);
           __Pyx_DECREF(((PyObject *)__pyx_t_12)); __pyx_t_12 = 0;
           __Pyx_XGOTREF(((PyObject *)__pyx_cur_scope->__pyx_v_chunklen));
@@ -50658,7 +50830,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
           __Pyx_GIVEREF(__pyx_t_18);
           __pyx_t_18 = 0;
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1128
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1131
  *                         num_subpatterns = (<PhraseLocation> node.phrase_location).num_subpatterns
  *                         chunklen = IntList(initial_len=num_subpatterns)
  *                         for j from 0 <= j < num_subpatterns:             # <<<<<<<<<<<<<<
@@ -50668,7 +50840,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
           __pyx_t_21 = __pyx_cur_scope->__pyx_v_num_subpatterns;
           for (__pyx_cur_scope->__pyx_v_j = 0; __pyx_cur_scope->__pyx_v_j < __pyx_t_21; __pyx_cur_scope->__pyx_v_j++) {
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1129
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1132
  *                         chunklen = IntList(initial_len=num_subpatterns)
  *                         for j from 0 <= j < num_subpatterns:
  *                             chunklen.arr[j] = hiero_phrase.chunklen(j)             # <<<<<<<<<<<<<<
@@ -50678,21 +50850,21 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
             (__pyx_cur_scope->__pyx_v_chunklen->arr[__pyx_cur_scope->__pyx_v_j]) = ((struct __pyx_vtabstruct_4cdec_2sa_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);
           }
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1130
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1133
  *                         for j from 0 <= j < num_subpatterns:
  *                             chunklen.arr[j] = hiero_phrase.chunklen(j)
  *                         extracts = []             # <<<<<<<<<<<<<<
  *                         j = 0
  *                         extract_start = monitor_cpu()
  */
-          __pyx_t_18 = PyList_New(0); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1130; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_18 = PyList_New(0); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1133; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_18);
           __Pyx_XGOTREF(((PyObject *)__pyx_cur_scope->__pyx_v_extracts));
           __Pyx_XDECREF_SET(__pyx_cur_scope->__pyx_v_extracts, ((PyObject*)__pyx_t_18));
           __Pyx_GIVEREF(((PyObject *)__pyx_t_18));
           __pyx_t_18 = 0;
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1131
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1134
  *                             chunklen.arr[j] = hiero_phrase.chunklen(j)
  *                         extracts = []
  *                         j = 0             # <<<<<<<<<<<<<<
@@ -50701,16 +50873,16 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
  */
           __pyx_cur_scope->__pyx_v_j = 0;
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1132
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1135
  *                         extracts = []
  *                         j = 0
  *                         extract_start = monitor_cpu()             # <<<<<<<<<<<<<<
  *                         while j < sample.len:
  *                             extract = []
  */
-          __pyx_t_18 = __Pyx_GetModuleGlobalName(__pyx_n_s__monitor_cpu); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1132; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_18 = __Pyx_GetModuleGlobalName(__pyx_n_s__monitor_cpu); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1135; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_18);
-          __pyx_t_12 = PyObject_Call(__pyx_t_18, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1132; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_12 = PyObject_Call(__pyx_t_18, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1135; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_12);
           __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
           __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_extract_start);
@@ -50718,7 +50890,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
           __Pyx_GIVEREF(__pyx_t_12);
           __pyx_t_12 = 0;
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1133
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1136
  *                         j = 0
  *                         extract_start = monitor_cpu()
  *                         while j < sample.len:             # <<<<<<<<<<<<<<
@@ -50729,21 +50901,21 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
             __pyx_t_9 = ((__pyx_cur_scope->__pyx_v_j < __pyx_cur_scope->__pyx_v_sample->len) != 0);
             if (!__pyx_t_9) break;
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1134
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1137
  *                         extract_start = monitor_cpu()
  *                         while j < sample.len:
  *                             extract = []             # <<<<<<<<<<<<<<
  * 
  *                             assign_matching(&matching, sample.arr, j, num_subpatterns, self.fda.sent_id.arr)
  */
-            __pyx_t_12 = PyList_New(0); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1134; __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 = 1137; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_12);
             __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_extract);
             __Pyx_XDECREF_SET(__pyx_cur_scope->__pyx_v_extract, ((PyObject *)__pyx_t_12));
             __Pyx_GIVEREF(((PyObject *)__pyx_t_12));
             __pyx_t_12 = 0;
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1136
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1139
  *                             extract = []
  * 
  *                             assign_matching(&matching, sample.arr, j, num_subpatterns, self.fda.sent_id.arr)             # <<<<<<<<<<<<<<
@@ -50752,21 +50924,21 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
  */
             __pyx_f_4cdec_2sa_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);
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1137
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1140
  * 
  *                             assign_matching(&matching, sample.arr, j, num_subpatterns, self.fda.sent_id.arr)
  *                             loc = tuple(sample[j:j+num_subpatterns])             # <<<<<<<<<<<<<<
  *                             extract = self.extract(hiero_phrase, &matching, chunklen.arr, num_subpatterns)
  *                             extracts.extend([(e, loc) for e in extract])
  */
-            __pyx_t_12 = __Pyx_PyObject_GetSlice(((PyObject *)__pyx_cur_scope->__pyx_v_sample), __pyx_cur_scope->__pyx_v_j, (__pyx_cur_scope->__pyx_v_j + __pyx_cur_scope->__pyx_v_num_subpatterns), NULL, NULL, NULL, 1, 1, 1); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1137; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_12 = __Pyx_PyObject_GetSlice(((PyObject *)__pyx_cur_scope->__pyx_v_sample), __pyx_cur_scope->__pyx_v_j, (__pyx_cur_scope->__pyx_v_j + __pyx_cur_scope->__pyx_v_num_subpatterns), NULL, NULL, NULL, 1, 1, 1); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1140; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_12);
-            __pyx_t_18 = PyTuple_New(1); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1137; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_18 = PyTuple_New(1); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1140; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_18);
             PyTuple_SET_ITEM(__pyx_t_18, 0, __pyx_t_12);
             __Pyx_GIVEREF(__pyx_t_12);
             __pyx_t_12 = 0;
-            __pyx_t_12 = PyObject_Call(((PyObject *)((PyObject*)(&PyTuple_Type))), ((PyObject *)__pyx_t_18), NULL); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1137; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_12 = PyObject_Call(((PyObject *)((PyObject*)(&PyTuple_Type))), ((PyObject *)__pyx_t_18), NULL); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1140; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_12);
             __Pyx_DECREF(((PyObject *)__pyx_t_18)); __pyx_t_18 = 0;
             __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_loc);
@@ -50774,36 +50946,36 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
             __Pyx_GIVEREF(__pyx_t_12);
             __pyx_t_12 = 0;
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1138
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1141
  *                             assign_matching(&matching, sample.arr, j, num_subpatterns, self.fda.sent_id.arr)
  *                             loc = tuple(sample[j:j+num_subpatterns])
  *                             extract = self.extract(hiero_phrase, &matching, chunklen.arr, num_subpatterns)             # <<<<<<<<<<<<<<
  *                             extracts.extend([(e, loc) for e in extract])
  *                             j = j + num_subpatterns
  */
-            __pyx_t_12 = ((struct __pyx_vtabstruct_4cdec_2sa_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_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1138; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_12 = ((struct __pyx_vtabstruct_4cdec_2sa_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_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1141; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_12);
             __Pyx_GOTREF(__pyx_cur_scope->__pyx_v_extract);
             __Pyx_DECREF_SET(__pyx_cur_scope->__pyx_v_extract, __pyx_t_12);
             __Pyx_GIVEREF(__pyx_t_12);
             __pyx_t_12 = 0;
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1139
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1142
  *                             loc = tuple(sample[j:j+num_subpatterns])
  *                             extract = self.extract(hiero_phrase, &matching, chunklen.arr, num_subpatterns)
  *                             extracts.extend([(e, loc) for e in extract])             # <<<<<<<<<<<<<<
  *                             j = j + num_subpatterns
  * 
  */
-            __pyx_t_12 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_cur_scope->__pyx_v_extracts), __pyx_n_s__extend); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1139; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_12 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_cur_scope->__pyx_v_extracts), __pyx_n_s__extend); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1142; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_12);
-            __pyx_t_18 = PyList_New(0); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1139; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_18 = PyList_New(0); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1142; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_18);
             if (PyList_CheckExact(__pyx_cur_scope->__pyx_v_extract) || PyTuple_CheckExact(__pyx_cur_scope->__pyx_v_extract)) {
               __pyx_t_10 = __pyx_cur_scope->__pyx_v_extract; __Pyx_INCREF(__pyx_t_10); __pyx_t_6 = 0;
               __pyx_t_22 = NULL;
             } else {
-              __pyx_t_6 = -1; __pyx_t_10 = PyObject_GetIter(__pyx_cur_scope->__pyx_v_extract); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1139; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_6 = -1; __pyx_t_10 = PyObject_GetIter(__pyx_cur_scope->__pyx_v_extract); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1142; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_10);
               __pyx_t_22 = Py_TYPE(__pyx_t_10)->tp_iternext;
             }
@@ -50811,23 +50983,23 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
               if (!__pyx_t_22 && PyList_CheckExact(__pyx_t_10)) {
                 if (__pyx_t_6 >= PyList_GET_SIZE(__pyx_t_10)) break;
                 #if CYTHON_COMPILING_IN_CPYTHON
-                __pyx_t_17 = PyList_GET_ITEM(__pyx_t_10, __pyx_t_6); __Pyx_INCREF(__pyx_t_17); __pyx_t_6++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1139; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_17 = PyList_GET_ITEM(__pyx_t_10, __pyx_t_6); __Pyx_INCREF(__pyx_t_17); __pyx_t_6++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1142; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 #else
-                __pyx_t_17 = PySequence_ITEM(__pyx_t_10, __pyx_t_6); __pyx_t_6++; if (unlikely(!__pyx_t_17)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1139; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_17 = PySequence_ITEM(__pyx_t_10, __pyx_t_6); __pyx_t_6++; if (unlikely(!__pyx_t_17)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1142; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 #endif
               } else if (!__pyx_t_22 && PyTuple_CheckExact(__pyx_t_10)) {
                 if (__pyx_t_6 >= PyTuple_GET_SIZE(__pyx_t_10)) break;
                 #if CYTHON_COMPILING_IN_CPYTHON
-                __pyx_t_17 = PyTuple_GET_ITEM(__pyx_t_10, __pyx_t_6); __Pyx_INCREF(__pyx_t_17); __pyx_t_6++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1139; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_17 = PyTuple_GET_ITEM(__pyx_t_10, __pyx_t_6); __Pyx_INCREF(__pyx_t_17); __pyx_t_6++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1142; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 #else
-                __pyx_t_17 = PySequence_ITEM(__pyx_t_10, __pyx_t_6); __pyx_t_6++; if (unlikely(!__pyx_t_17)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1139; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_17 = PySequence_ITEM(__pyx_t_10, __pyx_t_6); __pyx_t_6++; if (unlikely(!__pyx_t_17)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1142; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 #endif
               } else {
                 __pyx_t_17 = __pyx_t_22(__pyx_t_10);
                 if (unlikely(!__pyx_t_17)) {
                   if (PyErr_Occurred()) {
                     if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-                    else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1139; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                    else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1142; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   }
                   break;
                 }
@@ -50837,7 +51009,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
               __Pyx_XDECREF_SET(__pyx_cur_scope->__pyx_v_e, __pyx_t_17);
               __Pyx_GIVEREF(__pyx_t_17);
               __pyx_t_17 = 0;
-              __pyx_t_17 = PyTuple_New(2); if (unlikely(!__pyx_t_17)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1139; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_17 = PyTuple_New(2); if (unlikely(!__pyx_t_17)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1142; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_17);
               __Pyx_INCREF(__pyx_cur_scope->__pyx_v_e);
               PyTuple_SET_ITEM(__pyx_t_17, 0, __pyx_cur_scope->__pyx_v_e);
@@ -50845,22 +51017,22 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
               __Pyx_INCREF(__pyx_cur_scope->__pyx_v_loc);
               PyTuple_SET_ITEM(__pyx_t_17, 1, __pyx_cur_scope->__pyx_v_loc);
               __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_loc);
-              if (unlikely(__Pyx_ListComp_Append(__pyx_t_18, (PyObject*)__pyx_t_17))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1139; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              if (unlikely(__Pyx_ListComp_Append(__pyx_t_18, (PyObject*)__pyx_t_17))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1142; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_DECREF(((PyObject *)__pyx_t_17)); __pyx_t_17 = 0;
             }
             __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-            __pyx_t_10 = PyTuple_New(1); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1139; __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 = 1142; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_10);
             PyTuple_SET_ITEM(__pyx_t_10, 0, ((PyObject *)__pyx_t_18));
             __Pyx_GIVEREF(((PyObject *)__pyx_t_18));
             __pyx_t_18 = 0;
-            __pyx_t_18 = PyObject_Call(__pyx_t_12, ((PyObject *)__pyx_t_10), NULL); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1139; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_18 = PyObject_Call(__pyx_t_12, ((PyObject *)__pyx_t_10), NULL); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1142; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_18);
             __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
             __Pyx_DECREF(((PyObject *)__pyx_t_10)); __pyx_t_10 = 0;
             __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1140
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1143
  *                             extract = self.extract(hiero_phrase, &matching, chunklen.arr, num_subpatterns)
  *                             extracts.extend([(e, loc) for e in extract])
  *                             j = j + num_subpatterns             # <<<<<<<<<<<<<<
@@ -50870,7 +51042,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
             __pyx_cur_scope->__pyx_v_j = (__pyx_cur_scope->__pyx_v_j + __pyx_cur_scope->__pyx_v_num_subpatterns);
           }
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1142
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1145
  *                             j = j + num_subpatterns
  * 
  *                         num_samples = sample.len/num_subpatterns             # <<<<<<<<<<<<<<
@@ -50885,7 +51057,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
             #ifdef WITH_THREAD
             PyGILState_Release(__pyx_gilstate_save);
             #endif
-            {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1142; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1145; __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))) {
             #ifdef WITH_THREAD
@@ -50895,20 +51067,20 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
             #ifdef WITH_THREAD
             PyGILState_Release(__pyx_gilstate_save);
             #endif
-            {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1142; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1145; __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);
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1143
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1146
  * 
  *                         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_18 = __Pyx_GetModuleGlobalName(__pyx_n_s__monitor_cpu); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1143; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_18 = __Pyx_GetModuleGlobalName(__pyx_n_s__monitor_cpu); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1146; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_18);
-          __pyx_t_10 = PyObject_Call(__pyx_t_18, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1143; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_10 = PyObject_Call(__pyx_t_18, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1146; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_10);
           __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
           __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_extract_stop);
@@ -50916,46 +51088,46 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
           __Pyx_GIVEREF(__pyx_t_10);
           __pyx_t_10 = 0;
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1144
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1147
  *                         num_samples = sample.len/num_subpatterns
  *                         extract_stop = monitor_cpu()
  *                         self.extract_time = self.extract_time + extract_stop - extract_start             # <<<<<<<<<<<<<<
  *                         if len(extracts) > 0:
  *                             fcount = Counter()
  */
-          __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 = 1144; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __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 = 1147; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_10);
-          __pyx_t_18 = PyNumber_Add(__pyx_t_10, __pyx_cur_scope->__pyx_v_extract_stop); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1144; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_18 = PyNumber_Add(__pyx_t_10, __pyx_cur_scope->__pyx_v_extract_stop); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1147; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_18);
           __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-          __pyx_t_10 = PyNumber_Subtract(__pyx_t_18, __pyx_cur_scope->__pyx_v_extract_start); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1144; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_10 = PyNumber_Subtract(__pyx_t_18, __pyx_cur_scope->__pyx_v_extract_start); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1147; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_10);
           __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
-          __pyx_t_4 = __pyx_PyFloat_AsFloat(__pyx_t_10); if (unlikely((__pyx_t_4 == (float)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1144; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_4 = __pyx_PyFloat_AsFloat(__pyx_t_10); if (unlikely((__pyx_t_4 == (float)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1147; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
           __pyx_cur_scope->__pyx_v_self->extract_time = __pyx_t_4;
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1145
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1148
  *                         extract_stop = monitor_cpu()
  *                         self.extract_time = self.extract_time + extract_stop - extract_start
  *                         if len(extracts) > 0:             # <<<<<<<<<<<<<<
  *                             fcount = Counter()
  *                             fphrases = defaultdict(lambda: defaultdict(lambda: defaultdict(list)))
  */
-          __pyx_t_6 = PyList_GET_SIZE(((PyObject *)__pyx_cur_scope->__pyx_v_extracts)); if (unlikely(__pyx_t_6 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1145; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_6 = PyList_GET_SIZE(((PyObject *)__pyx_cur_scope->__pyx_v_extracts)); if (unlikely(__pyx_t_6 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1148; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __pyx_t_9 = ((__pyx_t_6 > 0) != 0);
           if (__pyx_t_9) {
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1146
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1149
  *                         self.extract_time = self.extract_time + extract_stop - extract_start
  *                         if len(extracts) > 0:
  *                             fcount = Counter()             # <<<<<<<<<<<<<<
  *                             fphrases = defaultdict(lambda: defaultdict(lambda: defaultdict(list)))
  *                             for (f, e, count, als), loc in extracts:
  */
-            __pyx_t_10 = __Pyx_GetModuleGlobalName(__pyx_n_s__Counter); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1146; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_10 = __Pyx_GetModuleGlobalName(__pyx_n_s__Counter); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1149; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_10);
-            __pyx_t_18 = PyObject_Call(__pyx_t_10, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1146; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_18 = PyObject_Call(__pyx_t_10, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1149; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_18);
             __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
             __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_fcount);
@@ -50963,23 +51135,23 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
             __Pyx_GIVEREF(__pyx_t_18);
             __pyx_t_18 = 0;
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1147
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1150
  *                         if len(extracts) > 0:
  *                             fcount = Counter()
  *                             fphrases = defaultdict(lambda: defaultdict(lambda: defaultdict(list)))             # <<<<<<<<<<<<<<
  *                             for (f, e, count, als), loc in extracts:
  *                                 fcount[f] += count
  */
-            __pyx_t_18 = __Pyx_GetModuleGlobalName(__pyx_n_s__defaultdict); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1147; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_18 = __Pyx_GetModuleGlobalName(__pyx_n_s__defaultdict); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1150; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_18);
-            __pyx_t_10 = __Pyx_CyFunction_NewEx(&__pyx_mdef_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5input_lambda4, 0, __pyx_n_s_128, NULL, __pyx_n_s_102, NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1147; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_10 = __Pyx_CyFunction_NewEx(&__pyx_mdef_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5input_lambda5, 0, __pyx_n_s_128, NULL, __pyx_n_s_102, NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1150; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_10);
-            __pyx_t_12 = PyTuple_New(1); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1147; __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 = 1150; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_12);
             PyTuple_SET_ITEM(__pyx_t_12, 0, __pyx_t_10);
             __Pyx_GIVEREF(__pyx_t_10);
             __pyx_t_10 = 0;
-            __pyx_t_10 = PyObject_Call(__pyx_t_18, ((PyObject *)__pyx_t_12), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1147; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_10 = PyObject_Call(__pyx_t_18, ((PyObject *)__pyx_t_12), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1150; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_10);
             __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
             __Pyx_DECREF(((PyObject *)__pyx_t_12)); __pyx_t_12 = 0;
@@ -50988,7 +51160,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
             __Pyx_GIVEREF(__pyx_t_10);
             __pyx_t_10 = 0;
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1148
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1151
  *                             fcount = Counter()
  *                             fphrases = defaultdict(lambda: defaultdict(lambda: defaultdict(list)))
  *                             for (f, e, count, als), loc in extracts:             # <<<<<<<<<<<<<<
@@ -50999,9 +51171,9 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
             for (;;) {
               if (__pyx_t_6 >= PyList_GET_SIZE(__pyx_t_10)) break;
               #if CYTHON_COMPILING_IN_CPYTHON
-              __pyx_t_12 = PyList_GET_ITEM(__pyx_t_10, __pyx_t_6); __Pyx_INCREF(__pyx_t_12); __pyx_t_6++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1148; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_12 = PyList_GET_ITEM(__pyx_t_10, __pyx_t_6); __Pyx_INCREF(__pyx_t_12); __pyx_t_6++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1151; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               #else
-              __pyx_t_12 = PySequence_ITEM(__pyx_t_10, __pyx_t_6); __pyx_t_6++; if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1148; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_12 = PySequence_ITEM(__pyx_t_10, __pyx_t_6); __pyx_t_6++; if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1151; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               #endif
               if ((likely(PyTuple_CheckExact(__pyx_t_12))) || (PyList_CheckExact(__pyx_t_12))) {
                 PyObject* sequence = __pyx_t_12;
@@ -51013,7 +51185,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
                 if (unlikely(size != 2)) {
                   if (size > 2) __Pyx_RaiseTooManyValuesError(2);
                   else if (size >= 0) __Pyx_RaiseNeedMoreValuesError(size);
-                  {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1148; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1151; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 }
                 #if CYTHON_COMPILING_IN_CPYTHON
                 if (likely(PyTuple_CheckExact(sequence))) {
@@ -51026,16 +51198,16 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
                 __Pyx_INCREF(__pyx_t_18);
                 __Pyx_INCREF(__pyx_t_17);
                 #else
-                __pyx_t_18 = PySequence_ITEM(sequence, 0); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1148; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_18 = PySequence_ITEM(sequence, 0); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1151; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_18);
-                __pyx_t_17 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_17)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1148; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_17 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_17)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1151; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_17);
                 #endif
                 __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
               } else
               {
                 Py_ssize_t index = -1;
-                __pyx_t_1 = PyObject_GetIter(__pyx_t_12); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1148; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_1 = PyObject_GetIter(__pyx_t_12); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1151; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_1);
                 __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
                 __pyx_t_20 = Py_TYPE(__pyx_t_1)->tp_iternext;
@@ -51043,7 +51215,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
                 __Pyx_GOTREF(__pyx_t_18);
                 index = 1; __pyx_t_17 = __pyx_t_20(__pyx_t_1); if (unlikely(!__pyx_t_17)) goto __pyx_L50_unpacking_failed;
                 __Pyx_GOTREF(__pyx_t_17);
-                if (__Pyx_IternextUnpackEndCheck(__pyx_t_20(__pyx_t_1), 2) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1148; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                if (__Pyx_IternextUnpackEndCheck(__pyx_t_20(__pyx_t_1), 2) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1151; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __pyx_t_20 = NULL;
                 __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
                 goto __pyx_L51_unpacking_done;
@@ -51051,7 +51223,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
                 __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
                 __pyx_t_20 = NULL;
                 if (__Pyx_IterFinish() == 0) __Pyx_RaiseNeedMoreValuesError(index);
-                {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1148; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1151; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __pyx_L51_unpacking_done:;
               }
               if ((likely(PyTuple_CheckExact(__pyx_t_18))) || (PyList_CheckExact(__pyx_t_18))) {
@@ -51064,7 +51236,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
                 if (unlikely(size != 4)) {
                   if (size > 4) __Pyx_RaiseTooManyValuesError(4);
                   else if (size >= 0) __Pyx_RaiseNeedMoreValuesError(size);
-                  {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1148; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1151; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 }
                 #if CYTHON_COMPILING_IN_CPYTHON
                 if (likely(PyTuple_CheckExact(sequence))) {
@@ -51086,7 +51258,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
                 Py_ssize_t i;
                 PyObject** temps[4] = {&__pyx_t_1,&__pyx_t_3,&__pyx_t_11,&__pyx_t_8};
                 for (i=0; i < 4; i++) {
-                  PyObject* item = PySequence_ITEM(sequence, i); if (unlikely(!item)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1148; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  PyObject* item = PySequence_ITEM(sequence, i); if (unlikely(!item)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1151; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   __Pyx_GOTREF(item);
                   *(temps[i]) = item;
                 }
@@ -51096,7 +51268,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
               {
                 Py_ssize_t index = -1;
                 PyObject** temps[4] = {&__pyx_t_1,&__pyx_t_3,&__pyx_t_11,&__pyx_t_8};
-                __pyx_t_16 = PyObject_GetIter(__pyx_t_18); if (unlikely(!__pyx_t_16)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1148; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_16 = PyObject_GetIter(__pyx_t_18); if (unlikely(!__pyx_t_16)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1151; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_16);
                 __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
                 __pyx_t_20 = Py_TYPE(__pyx_t_16)->tp_iternext;
@@ -51105,7 +51277,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
                   __Pyx_GOTREF(item);
                   *(temps[index]) = item;
                 }
-                if (__Pyx_IternextUnpackEndCheck(__pyx_t_20(__pyx_t_16), 4) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1148; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                if (__Pyx_IternextUnpackEndCheck(__pyx_t_20(__pyx_t_16), 4) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1151; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __pyx_t_20 = NULL;
                 __Pyx_DECREF(__pyx_t_16); __pyx_t_16 = 0;
                 goto __pyx_L53_unpacking_done;
@@ -51113,7 +51285,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
                 __Pyx_DECREF(__pyx_t_16); __pyx_t_16 = 0;
                 __pyx_t_20 = NULL;
                 if (__Pyx_IterFinish() == 0) __Pyx_RaiseNeedMoreValuesError(index);
-                {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1148; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1151; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __pyx_L53_unpacking_done:;
               }
               __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_f);
@@ -51137,7 +51309,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
               __Pyx_GIVEREF(__pyx_t_17);
               __pyx_t_17 = 0;
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1149
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1152
  *                             fphrases = defaultdict(lambda: defaultdict(lambda: defaultdict(list)))
  *                             for (f, e, count, als), loc in extracts:
  *                                 fcount[f] += count             # <<<<<<<<<<<<<<
@@ -51146,38 +51318,38 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
  */
               __Pyx_INCREF(__pyx_cur_scope->__pyx_v_f);
               __pyx_t_12 = __pyx_cur_scope->__pyx_v_f;
-              __pyx_t_17 = PyObject_GetItem(__pyx_cur_scope->__pyx_v_fcount, __pyx_t_12); if (!__pyx_t_17) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1149; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_17 = PyObject_GetItem(__pyx_cur_scope->__pyx_v_fcount, __pyx_t_12); if (!__pyx_t_17) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1152; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_17);
-              __pyx_t_18 = PyNumber_InPlaceAdd(__pyx_t_17, __pyx_cur_scope->__pyx_v_count); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1149; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_18 = PyNumber_InPlaceAdd(__pyx_t_17, __pyx_cur_scope->__pyx_v_count); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1152; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_18);
               __Pyx_DECREF(__pyx_t_17); __pyx_t_17 = 0;
-              if (PyObject_SetItem(__pyx_cur_scope->__pyx_v_fcount, __pyx_t_12, __pyx_t_18) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1149; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              if (PyObject_SetItem(__pyx_cur_scope->__pyx_v_fcount, __pyx_t_12, __pyx_t_18) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1152; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
               __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1150
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1153
  *                             for (f, e, count, als), loc in extracts:
  *                                 fcount[f] += count
  *                                 fphrases[f][e][als].append(loc)             # <<<<<<<<<<<<<<
  *                             for f, elist in fphrases.iteritems():
  *                                 for e, alslist in elist.iteritems():
  */
-              __pyx_t_12 = PyObject_GetItem(__pyx_cur_scope->__pyx_v_fphrases, __pyx_cur_scope->__pyx_v_f); if (!__pyx_t_12) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1150; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_12 = PyObject_GetItem(__pyx_cur_scope->__pyx_v_fphrases, __pyx_cur_scope->__pyx_v_f); if (!__pyx_t_12) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1153; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_12);
-              __pyx_t_18 = PyObject_GetItem(__pyx_t_12, __pyx_cur_scope->__pyx_v_e); if (!__pyx_t_18) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1150; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_18 = PyObject_GetItem(__pyx_t_12, __pyx_cur_scope->__pyx_v_e); if (!__pyx_t_18) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1153; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_18);
               __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
-              __pyx_t_12 = PyObject_GetItem(__pyx_t_18, __pyx_cur_scope->__pyx_v_als); if (!__pyx_t_12) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1150; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_12 = PyObject_GetItem(__pyx_t_18, __pyx_cur_scope->__pyx_v_als); if (!__pyx_t_12) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1153; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_12);
               __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
-              __pyx_t_18 = __Pyx_PyObject_Append(__pyx_t_12, __pyx_cur_scope->__pyx_v_loc); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1150; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_18 = __Pyx_PyObject_Append(__pyx_t_12, __pyx_cur_scope->__pyx_v_loc); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1153; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_18);
               __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
               __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
             }
             __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1151
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1154
  *                                 fcount[f] += count
  *                                 fphrases[f][e][als].append(loc)
  *                             for f, elist in fphrases.iteritems():             # <<<<<<<<<<<<<<
@@ -51187,9 +51359,9 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
             __pyx_t_6 = 0;
             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 = 1151; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1154; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             }
-            __pyx_t_18 = __Pyx_dict_iterator(__pyx_cur_scope->__pyx_v_fphrases, 0, ((PyObject *)__pyx_n_s__iteritems), (&__pyx_t_23), (&__pyx_t_21)); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1151; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_18 = __Pyx_dict_iterator(__pyx_cur_scope->__pyx_v_fphrases, 0, ((PyObject *)__pyx_n_s__iteritems), (&__pyx_t_23), (&__pyx_t_21)); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1154; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_18);
             __Pyx_XDECREF(__pyx_t_10);
             __pyx_t_10 = __pyx_t_18;
@@ -51197,7 +51369,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
             while (1) {
               __pyx_t_7 = __Pyx_dict_iter_next(__pyx_t_10, __pyx_t_23, &__pyx_t_6, &__pyx_t_18, &__pyx_t_12, NULL, __pyx_t_21);
               if (unlikely(__pyx_t_7 == 0)) break;
-              if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1151; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1154; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_18);
               __Pyx_GOTREF(__pyx_t_12);
               __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_f);
@@ -51209,7 +51381,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
               __Pyx_GIVEREF(__pyx_t_12);
               __pyx_t_12 = 0;
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1152
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1155
  *                                 fphrases[f][e][als].append(loc)
  *                             for f, elist in fphrases.iteritems():
  *                                 for e, alslist in elist.iteritems():             # <<<<<<<<<<<<<<
@@ -51219,9 +51391,9 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
               __pyx_t_24 = 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 = 1152; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1155; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               }
-              __pyx_t_18 = __Pyx_dict_iterator(__pyx_cur_scope->__pyx_v_elist, 0, ((PyObject *)__pyx_n_s__iteritems), (&__pyx_t_25), (&__pyx_t_7)); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1152; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_18 = __Pyx_dict_iterator(__pyx_cur_scope->__pyx_v_elist, 0, ((PyObject *)__pyx_n_s__iteritems), (&__pyx_t_25), (&__pyx_t_7)); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1155; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_18);
               __Pyx_XDECREF(__pyx_t_12);
               __pyx_t_12 = __pyx_t_18;
@@ -51229,7 +51401,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
               while (1) {
                 __pyx_t_5 = __Pyx_dict_iter_next(__pyx_t_12, __pyx_t_25, &__pyx_t_24, &__pyx_t_18, &__pyx_t_17, NULL, __pyx_t_7);
                 if (unlikely(__pyx_t_5 == 0)) break;
-                if (unlikely(__pyx_t_5 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1152; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                if (unlikely(__pyx_t_5 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1155; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_18);
                 __Pyx_GOTREF(__pyx_t_17);
                 __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_e);
@@ -51241,30 +51413,30 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
                 __Pyx_GIVEREF(__pyx_t_17);
                 __pyx_t_17 = 0;
 
-                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1153
+                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1156
  *                             for f, elist in fphrases.iteritems():
  *                                 for e, alslist in elist.iteritems():
  *                                     alignment, max_locs = max(alslist.iteritems(), key=lambda x: len(x[1]))             # <<<<<<<<<<<<<<
  *                                     locs = tuple(itertools.chain.from_iterable(alslist.itervalues()))
  *                                     count = len(locs)
  */
-                __pyx_t_17 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_alslist, __pyx_n_s__iteritems); if (unlikely(!__pyx_t_17)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1153; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_17 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_alslist, __pyx_n_s__iteritems); if (unlikely(!__pyx_t_17)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1156; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_17);
-                __pyx_t_18 = PyObject_Call(__pyx_t_17, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1153; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_18 = PyObject_Call(__pyx_t_17, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1156; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_18);
                 __Pyx_DECREF(__pyx_t_17); __pyx_t_17 = 0;
-                __pyx_t_17 = PyTuple_New(1); if (unlikely(!__pyx_t_17)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1153; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_17 = PyTuple_New(1); if (unlikely(!__pyx_t_17)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1156; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_17);
                 PyTuple_SET_ITEM(__pyx_t_17, 0, __pyx_t_18);
                 __Pyx_GIVEREF(__pyx_t_18);
                 __pyx_t_18 = 0;
-                __pyx_t_18 = PyDict_New(); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1153; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_18 = PyDict_New(); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1156; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(((PyObject *)__pyx_t_18));
-                __pyx_t_8 = __Pyx_CyFunction_NewEx(&__pyx_mdef_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5input_1lambda6, 0, __pyx_n_s_128, NULL, __pyx_n_s_102, NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1153; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_8 = __Pyx_CyFunction_NewEx(&__pyx_mdef_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5input_1lambda7, 0, __pyx_n_s_128, NULL, __pyx_n_s_102, NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1156; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_8);
-                if (PyDict_SetItem(__pyx_t_18, ((PyObject *)__pyx_n_s__key), __pyx_t_8) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1153; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                if (PyDict_SetItem(__pyx_t_18, ((PyObject *)__pyx_n_s__key), __pyx_t_8) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1156; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-                __pyx_t_8 = PyObject_Call(__pyx_builtin_max, ((PyObject *)__pyx_t_17), ((PyObject *)__pyx_t_18)); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1153; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_8 = PyObject_Call(__pyx_builtin_max, ((PyObject *)__pyx_t_17), ((PyObject *)__pyx_t_18)); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1156; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_8);
                 __Pyx_DECREF(((PyObject *)__pyx_t_17)); __pyx_t_17 = 0;
                 __Pyx_DECREF(((PyObject *)__pyx_t_18)); __pyx_t_18 = 0;
@@ -51278,7 +51450,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
                   if (unlikely(size != 2)) {
                     if (size > 2) __Pyx_RaiseTooManyValuesError(2);
                     else if (size >= 0) __Pyx_RaiseNeedMoreValuesError(size);
-                    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1153; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1156; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   }
                   #if CYTHON_COMPILING_IN_CPYTHON
                   if (likely(PyTuple_CheckExact(sequence))) {
@@ -51291,16 +51463,16 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
                   __Pyx_INCREF(__pyx_t_18);
                   __Pyx_INCREF(__pyx_t_17);
                   #else
-                  __pyx_t_18 = PySequence_ITEM(sequence, 0); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1153; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  __pyx_t_18 = PySequence_ITEM(sequence, 0); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1156; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   __Pyx_GOTREF(__pyx_t_18);
-                  __pyx_t_17 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_17)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1153; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  __pyx_t_17 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_17)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1156; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   __Pyx_GOTREF(__pyx_t_17);
                   #endif
                   __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
                 } else
                 {
                   Py_ssize_t index = -1;
-                  __pyx_t_11 = PyObject_GetIter(__pyx_t_8); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1153; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  __pyx_t_11 = PyObject_GetIter(__pyx_t_8); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1156; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   __Pyx_GOTREF(__pyx_t_11);
                   __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
                   __pyx_t_20 = Py_TYPE(__pyx_t_11)->tp_iternext;
@@ -51308,7 +51480,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
                   __Pyx_GOTREF(__pyx_t_18);
                   index = 1; __pyx_t_17 = __pyx_t_20(__pyx_t_11); if (unlikely(!__pyx_t_17)) goto __pyx_L58_unpacking_failed;
                   __Pyx_GOTREF(__pyx_t_17);
-                  if (__Pyx_IternextUnpackEndCheck(__pyx_t_20(__pyx_t_11), 2) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1153; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  if (__Pyx_IternextUnpackEndCheck(__pyx_t_20(__pyx_t_11), 2) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1156; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   __pyx_t_20 = NULL;
                   __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
                   goto __pyx_L59_unpacking_done;
@@ -51316,7 +51488,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
                   __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
                   __pyx_t_20 = NULL;
                   if (__Pyx_IterFinish() == 0) __Pyx_RaiseNeedMoreValuesError(index);
-                  {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1153; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1156; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   __pyx_L59_unpacking_done:;
                 }
                 __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_alignment);
@@ -51328,41 +51500,41 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
                 __Pyx_GIVEREF(__pyx_t_17);
                 __pyx_t_17 = 0;
 
-                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1154
+                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1157
  *                                 for e, alslist in elist.iteritems():
  *                                     alignment, max_locs = max(alslist.iteritems(), key=lambda x: len(x[1]))
  *                                     locs = tuple(itertools.chain.from_iterable(alslist.itervalues()))             # <<<<<<<<<<<<<<
  *                                     count = len(locs)
  *                                     scores = self.scorer.score(FeatureContext(
  */
-                __pyx_t_8 = __Pyx_GetModuleGlobalName(__pyx_n_s__itertools); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1154; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_8 = __Pyx_GetModuleGlobalName(__pyx_n_s__itertools); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1157; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_8);
-                __pyx_t_17 = __Pyx_PyObject_GetAttrStr(__pyx_t_8, __pyx_n_s__chain); if (unlikely(!__pyx_t_17)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1154; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_17 = __Pyx_PyObject_GetAttrStr(__pyx_t_8, __pyx_n_s__chain); if (unlikely(!__pyx_t_17)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1157; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_17);
                 __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-                __pyx_t_8 = __Pyx_PyObject_GetAttrStr(__pyx_t_17, __pyx_n_s__from_iterable); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1154; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_8 = __Pyx_PyObject_GetAttrStr(__pyx_t_17, __pyx_n_s__from_iterable); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1157; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_8);
                 __Pyx_DECREF(__pyx_t_17); __pyx_t_17 = 0;
-                __pyx_t_17 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_alslist, __pyx_n_s__itervalues); if (unlikely(!__pyx_t_17)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1154; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_17 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_alslist, __pyx_n_s__itervalues); if (unlikely(!__pyx_t_17)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1157; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_17);
-                __pyx_t_18 = PyObject_Call(__pyx_t_17, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1154; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_18 = PyObject_Call(__pyx_t_17, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1157; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_18);
                 __Pyx_DECREF(__pyx_t_17); __pyx_t_17 = 0;
-                __pyx_t_17 = PyTuple_New(1); if (unlikely(!__pyx_t_17)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1154; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_17 = PyTuple_New(1); if (unlikely(!__pyx_t_17)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1157; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_17);
                 PyTuple_SET_ITEM(__pyx_t_17, 0, __pyx_t_18);
                 __Pyx_GIVEREF(__pyx_t_18);
                 __pyx_t_18 = 0;
-                __pyx_t_18 = PyObject_Call(__pyx_t_8, ((PyObject *)__pyx_t_17), NULL); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1154; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_18 = PyObject_Call(__pyx_t_8, ((PyObject *)__pyx_t_17), NULL); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1157; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_18);
                 __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
                 __Pyx_DECREF(((PyObject *)__pyx_t_17)); __pyx_t_17 = 0;
-                __pyx_t_17 = PyTuple_New(1); if (unlikely(!__pyx_t_17)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1154; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_17 = PyTuple_New(1); if (unlikely(!__pyx_t_17)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1157; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_17);
                 PyTuple_SET_ITEM(__pyx_t_17, 0, __pyx_t_18);
                 __Pyx_GIVEREF(__pyx_t_18);
                 __pyx_t_18 = 0;
-                __pyx_t_18 = PyObject_Call(((PyObject *)((PyObject*)(&PyTuple_Type))), ((PyObject *)__pyx_t_17), NULL); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1154; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_18 = PyObject_Call(((PyObject *)((PyObject*)(&PyTuple_Type))), ((PyObject *)__pyx_t_17), NULL); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1157; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_18);
                 __Pyx_DECREF(((PyObject *)__pyx_t_17)); __pyx_t_17 = 0;
                 __Pyx_XGOTREF(((PyObject *)__pyx_cur_scope->__pyx_v_locs));
@@ -51370,58 +51542,58 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
                 __Pyx_GIVEREF(__pyx_t_18);
                 __pyx_t_18 = 0;
 
-                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1155
+                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1158
  *                                     alignment, max_locs = max(alslist.iteritems(), key=lambda x: len(x[1]))
  *                                     locs = tuple(itertools.chain.from_iterable(alslist.itervalues()))
  *                                     count = len(locs)             # <<<<<<<<<<<<<<
  *                                     scores = self.scorer.score(FeatureContext(
  *                                                f, e, count, fcount[f], num_samples,
  */
-                __pyx_t_26 = PyTuple_GET_SIZE(((PyObject *)__pyx_cur_scope->__pyx_v_locs)); if (unlikely(__pyx_t_26 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1155; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-                __pyx_t_18 = PyInt_FromSsize_t(__pyx_t_26); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1155; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_26 = PyTuple_GET_SIZE(((PyObject *)__pyx_cur_scope->__pyx_v_locs)); if (unlikely(__pyx_t_26 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1158; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_18 = PyInt_FromSsize_t(__pyx_t_26); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1158; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_18);
                 __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_count);
                 __Pyx_XDECREF_SET(__pyx_cur_scope->__pyx_v_count, __pyx_t_18);
                 __Pyx_GIVEREF(__pyx_t_18);
                 __pyx_t_18 = 0;
 
-                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1156
+                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1159
  *                                     locs = tuple(itertools.chain.from_iterable(alslist.itervalues()))
  *                                     count = len(locs)
  *                                     scores = self.scorer.score(FeatureContext(             # <<<<<<<<<<<<<<
  *                                                f, e, count, fcount[f], num_samples,
  *                                                (k,i+spanlen), locs, input_match,
  */
-                __pyx_t_18 = __Pyx_GetModuleGlobalName(__pyx_n_s__FeatureContext); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1156; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_18 = __Pyx_GetModuleGlobalName(__pyx_n_s__FeatureContext); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1159; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_18);
 
-                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1157
+                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1160
  *                                     count = len(locs)
  *                                     scores = self.scorer.score(FeatureContext(
  *                                                f, e, count, fcount[f], num_samples,             # <<<<<<<<<<<<<<
  *                                                (k,i+spanlen), locs, input_match,
  *                                                fwords, self.fda, self.eda,
  */
-                __pyx_t_17 = PyObject_GetItem(__pyx_cur_scope->__pyx_v_fcount, __pyx_cur_scope->__pyx_v_f); if (!__pyx_t_17) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1157; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_17 = PyObject_GetItem(__pyx_cur_scope->__pyx_v_fcount, __pyx_cur_scope->__pyx_v_f); if (!__pyx_t_17) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1160; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_17);
-                __pyx_t_8 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_num_samples); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1157; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_8 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_num_samples); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1160; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_8);
 
-                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1158
+                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1161
  *                                     scores = self.scorer.score(FeatureContext(
  *                                                f, e, count, fcount[f], num_samples,
  *                                                (k,i+spanlen), locs, input_match,             # <<<<<<<<<<<<<<
  *                                                fwords, self.fda, self.eda,
  *                                                meta,
  */
-                __pyx_t_11 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_k); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1158; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_11 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_k); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1161; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_11);
-                __pyx_t_3 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1158; __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 = 1161; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_3);
-                __pyx_t_1 = PyNumber_Add(__pyx_t_3, __pyx_cur_scope->__pyx_v_spanlen); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1158; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_1 = PyNumber_Add(__pyx_t_3, __pyx_cur_scope->__pyx_v_spanlen); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1161; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_1);
                 __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-                __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1158; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1161; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_3);
                 PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_11);
                 __Pyx_GIVEREF(__pyx_t_11);
@@ -51430,16 +51602,16 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
                 __pyx_t_11 = 0;
                 __pyx_t_1 = 0;
 
-                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1162
+                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1165
  *                                                meta,
  *                                                # Include online stats.  None if none.
  *                                                self.online_ctx_lookup(f, e, ctx_name)))             # <<<<<<<<<<<<<<
  *                                     # Phrase pair processed
  *                                     if self.online:
  */
-                __pyx_t_1 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_cur_scope->__pyx_v_self), __pyx_n_s__online_ctx_lookup); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1162; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_1 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_cur_scope->__pyx_v_self), __pyx_n_s__online_ctx_lookup); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1165; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_1);
-                __pyx_t_11 = PyTuple_New(3); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1162; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_11 = PyTuple_New(3); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1165; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_11);
                 __Pyx_INCREF(__pyx_cur_scope->__pyx_v_f);
                 PyTuple_SET_ITEM(__pyx_t_11, 0, __pyx_cur_scope->__pyx_v_f);
@@ -51450,11 +51622,11 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
                 __Pyx_INCREF(__pyx_cur_scope->__pyx_v_ctx_name);
                 PyTuple_SET_ITEM(__pyx_t_11, 2, __pyx_cur_scope->__pyx_v_ctx_name);
                 __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_ctx_name);
-                __pyx_t_16 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_11), NULL); if (unlikely(!__pyx_t_16)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1162; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_16 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_11), NULL); if (unlikely(!__pyx_t_16)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1165; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_16);
                 __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
                 __Pyx_DECREF(((PyObject *)__pyx_t_11)); __pyx_t_11 = 0;
-                __pyx_t_11 = PyTuple_New(13); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1156; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_11 = PyTuple_New(13); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1159; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_11);
                 __Pyx_INCREF(__pyx_cur_scope->__pyx_v_f);
                 PyTuple_SET_ITEM(__pyx_t_11, 0, __pyx_cur_scope->__pyx_v_f);
@@ -51495,11 +51667,11 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
                 __pyx_t_8 = 0;
                 __pyx_t_3 = 0;
                 __pyx_t_16 = 0;
-                __pyx_t_16 = PyObject_Call(__pyx_t_18, ((PyObject *)__pyx_t_11), NULL); if (unlikely(!__pyx_t_16)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1156; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_16 = PyObject_Call(__pyx_t_18, ((PyObject *)__pyx_t_11), NULL); if (unlikely(!__pyx_t_16)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1159; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_16);
                 __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
                 __Pyx_DECREF(((PyObject *)__pyx_t_11)); __pyx_t_11 = 0;
-                __pyx_t_11 = ((PyObject *)((struct __pyx_vtabstruct_4cdec_2sa_3_sa_Scorer *)__pyx_cur_scope->__pyx_v_self->scorer->__pyx_vtab)->score(__pyx_cur_scope->__pyx_v_self->scorer, __pyx_t_16)); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1156; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_11 = ((PyObject *)((struct __pyx_vtabstruct_4cdec_2sa_3_sa_Scorer *)__pyx_cur_scope->__pyx_v_self->scorer->__pyx_vtab)->score(__pyx_cur_scope->__pyx_v_self->scorer, __pyx_t_16)); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1159; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_11);
                 __Pyx_DECREF(__pyx_t_16); __pyx_t_16 = 0;
                 __Pyx_XGOTREF(((PyObject *)__pyx_cur_scope->__pyx_v_scores));
@@ -51507,7 +51679,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
                 __Pyx_GIVEREF(__pyx_t_11);
                 __pyx_t_11 = 0;
 
-                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1164
+                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1167
  *                                                self.online_ctx_lookup(f, e, ctx_name)))
  *                                     # Phrase pair processed
  *                                     if self.online:             # <<<<<<<<<<<<<<
@@ -51517,14 +51689,14 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
                 __pyx_t_9 = (__pyx_cur_scope->__pyx_v_self->online != 0);
                 if (__pyx_t_9) {
 
-                  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1165
+                  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1168
  *                                     # Phrase pair processed
  *                                     if self.online:
  *                                         seen_phrases.add((f, e))             # <<<<<<<<<<<<<<
  *                                     yield Rule(self.category, f, e, scores, alignment)
  * 
  */
-                  __pyx_t_11 = PyTuple_New(2); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1165; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  __pyx_t_11 = PyTuple_New(2); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1168; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   __Pyx_GOTREF(__pyx_t_11);
                   __Pyx_INCREF(__pyx_cur_scope->__pyx_v_f);
                   PyTuple_SET_ITEM(__pyx_t_11, 0, __pyx_cur_scope->__pyx_v_f);
@@ -51532,22 +51704,22 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
                   __Pyx_INCREF(__pyx_cur_scope->__pyx_v_e);
                   PyTuple_SET_ITEM(__pyx_t_11, 1, __pyx_cur_scope->__pyx_v_e);
                   __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_e);
-                  __pyx_t_13 = PySet_Add(__pyx_cur_scope->__pyx_v_seen_phrases, ((PyObject *)__pyx_t_11)); if (unlikely(__pyx_t_13 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1165; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  __pyx_t_13 = PySet_Add(__pyx_cur_scope->__pyx_v_seen_phrases, ((PyObject *)__pyx_t_11)); if (unlikely(__pyx_t_13 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1168; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   __Pyx_DECREF(((PyObject *)__pyx_t_11)); __pyx_t_11 = 0;
                   goto __pyx_L60;
                 }
                 __pyx_L60:;
 
-                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1166
+                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1169
  *                                     if self.online:
  *                                         seen_phrases.add((f, e))
  *                                     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_11 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_self->category); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1166; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_11 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_self->category); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1169; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_11);
-                __pyx_t_16 = PyTuple_New(5); if (unlikely(!__pyx_t_16)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1166; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_16 = PyTuple_New(5); if (unlikely(!__pyx_t_16)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1169; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_16);
                 PyTuple_SET_ITEM(__pyx_t_16, 0, __pyx_t_11);
                 __Pyx_GIVEREF(__pyx_t_11);
@@ -51564,7 +51736,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
                 PyTuple_SET_ITEM(__pyx_t_16, 4, __pyx_cur_scope->__pyx_v_alignment);
                 __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_alignment);
                 __pyx_t_11 = 0;
-                __pyx_t_11 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_Rule)), ((PyObject *)__pyx_t_16), NULL); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1166; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_11 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_Rule)), ((PyObject *)__pyx_t_16), NULL); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1169; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_11);
                 __Pyx_DECREF(((PyObject *)__pyx_t_16)); __pyx_t_16 = 0;
                 __pyx_r = __pyx_t_11;
@@ -51604,7 +51776,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
                 __pyx_t_23 = __pyx_cur_scope->__pyx_t_7;
                 __pyx_t_24 = __pyx_cur_scope->__pyx_t_8;
                 __pyx_t_25 = __pyx_cur_scope->__pyx_t_9;
-                if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1166; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1169; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               }
               __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
             }
@@ -51619,41 +51791,41 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
       }
       __pyx_L32:;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1168
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1171
  *                                     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, input_match, alt_id, pathlen + 1, node, phrase, is_shadow_path))
  */
-      __pyx_t_23 = PyObject_Length(__pyx_cur_scope->__pyx_v_phrase); if (unlikely(__pyx_t_23 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1168; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_23 = PyObject_Length(__pyx_cur_scope->__pyx_v_phrase); if (unlikely(__pyx_t_23 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1171; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __pyx_t_9 = (__pyx_t_23 < __pyx_cur_scope->__pyx_v_self->max_length);
       if (__pyx_t_9) {
-        __pyx_t_10 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1168; __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 = 1171; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_10);
-        __pyx_t_12 = PyNumber_Add(__pyx_t_10, __pyx_cur_scope->__pyx_v_spanlen); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1168; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_12 = PyNumber_Add(__pyx_t_10, __pyx_cur_scope->__pyx_v_spanlen); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1171; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_12);
         __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
         __pyx_t_10 = __pyx_cur_scope->__pyx_v_fwords;
         __Pyx_INCREF(__pyx_t_10);
-        __pyx_t_23 = PyObject_Length(__pyx_t_10); if (unlikely(__pyx_t_23 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1168; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_23 = PyObject_Length(__pyx_t_10); if (unlikely(__pyx_t_23 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1171; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-        __pyx_t_10 = PyInt_FromSsize_t(__pyx_t_23); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1168; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_10 = PyInt_FromSsize_t(__pyx_t_23); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1171; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_10);
-        __pyx_t_11 = PyObject_RichCompare(__pyx_t_12, __pyx_t_10, Py_LT); __Pyx_XGOTREF(__pyx_t_11); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1168; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_11 = PyObject_RichCompare(__pyx_t_12, __pyx_t_10, Py_LT); __Pyx_XGOTREF(__pyx_t_11); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1171; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
         __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-        __pyx_t_14 = __Pyx_PyObject_IsTrue(__pyx_t_11); if (unlikely(__pyx_t_14 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1168; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_14 = __Pyx_PyObject_IsTrue(__pyx_t_11); if (unlikely(__pyx_t_14 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1171; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
         if (__pyx_t_14) {
-          __pyx_t_11 = PyNumber_Add(__pyx_cur_scope->__pyx_v_pathlen, __pyx_int_1); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1168; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_11 = PyNumber_Add(__pyx_cur_scope->__pyx_v_pathlen, __pyx_int_1); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1171; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_11);
-          __pyx_t_10 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_self->max_initial_size); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1168; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_10 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_self->max_initial_size); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1171; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_10);
-          __pyx_t_12 = PyObject_RichCompare(__pyx_t_11, __pyx_t_10, Py_LE); __Pyx_XGOTREF(__pyx_t_12); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1168; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_12 = PyObject_RichCompare(__pyx_t_11, __pyx_t_10, Py_LE); __Pyx_XGOTREF(__pyx_t_12); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1171; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
           __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-          __pyx_t_27 = __Pyx_PyObject_IsTrue(__pyx_t_12); if (unlikely(__pyx_t_27 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1168; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_27 = __Pyx_PyObject_IsTrue(__pyx_t_12); if (unlikely(__pyx_t_27 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1171; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
           __pyx_t_28 = __pyx_t_27;
         } else {
@@ -51665,45 +51837,45 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
       }
       if (__pyx_t_14) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1169
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1172
  * 
  *                 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, input_match, alt_id, pathlen + 1, node, phrase, is_shadow_path))
  *                     num_subpatterns = arity
  */
-        __pyx_t_12 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1169; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_12 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1172; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_12);
-        __pyx_t_10 = PyNumber_Add(__pyx_t_12, __pyx_cur_scope->__pyx_v_spanlen); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1169; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_10 = PyNumber_Add(__pyx_t_12, __pyx_cur_scope->__pyx_v_spanlen); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1172; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_10);
         __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
-        __pyx_t_12 = PyObject_GetItem(__pyx_cur_scope->__pyx_v_fwords, __pyx_t_10); if (!__pyx_t_12) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1169; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_12 = PyObject_GetItem(__pyx_cur_scope->__pyx_v_fwords, __pyx_t_10); if (!__pyx_t_12) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1172; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_12);
         __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-        __pyx_t_23 = PyObject_Length(__pyx_t_12); if (unlikely(__pyx_t_23 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1169; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_23 = PyObject_Length(__pyx_t_12); if (unlikely(__pyx_t_23 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1172; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
         for (__pyx_t_21 = 0; __pyx_t_21 < __pyx_t_23; __pyx_t_21+=1) {
           __pyx_cur_scope->__pyx_v_alt_id = __pyx_t_21;
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1170
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1173
  *                 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, input_match, alt_id, pathlen + 1, node, phrase, is_shadow_path))             # <<<<<<<<<<<<<<
  *                     num_subpatterns = arity
  *                     if not is_shadow_path:
  */
-          __pyx_t_12 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_k); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1170; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_12 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_k); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1173; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_12);
-          __pyx_t_10 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1170; __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 = 1173; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_10);
-          __pyx_t_11 = PyNumber_Add(__pyx_t_10, __pyx_cur_scope->__pyx_v_spanlen); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1170; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_11 = PyNumber_Add(__pyx_t_10, __pyx_cur_scope->__pyx_v_spanlen); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1173; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_11);
           __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-          __pyx_t_10 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_alt_id); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1170; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_10 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_alt_id); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1173; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_10);
-          __pyx_t_16 = PyNumber_Add(__pyx_cur_scope->__pyx_v_pathlen, __pyx_int_1); if (unlikely(!__pyx_t_16)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1170; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_16 = PyNumber_Add(__pyx_cur_scope->__pyx_v_pathlen, __pyx_int_1); if (unlikely(!__pyx_t_16)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1173; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_16);
-          __pyx_t_18 = PyTuple_New(8); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1170; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_18 = PyTuple_New(8); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1173; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_18);
           PyTuple_SET_ITEM(__pyx_t_18, 0, __pyx_t_12);
           __Pyx_GIVEREF(__pyx_t_12);
@@ -51729,11 +51901,11 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
           __pyx_t_11 = 0;
           __pyx_t_10 = 0;
           __pyx_t_16 = 0;
-          __pyx_t_13 = __Pyx_PyList_Append(__pyx_cur_scope->__pyx_v_new_frontier, ((PyObject *)__pyx_t_18)); if (unlikely(__pyx_t_13 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1170; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_13 = __Pyx_PyList_Append(__pyx_cur_scope->__pyx_v_new_frontier, ((PyObject *)__pyx_t_18)); if (unlikely(__pyx_t_13 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1173; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_DECREF(((PyObject *)__pyx_t_18)); __pyx_t_18 = 0;
         }
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1171
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1174
  *                     for alt_id in range(len(fwords[i+spanlen])):
  *                         new_frontier.append((k, i+spanlen, input_match, alt_id, pathlen + 1, node, phrase, is_shadow_path))
  *                     num_subpatterns = arity             # <<<<<<<<<<<<<<
@@ -51742,18 +51914,18 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
  */
         __pyx_cur_scope->__pyx_v_num_subpatterns = __pyx_cur_scope->__pyx_v_arity;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1172
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1175
  *                         new_frontier.append((k, i+spanlen, input_match, 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_14 = __Pyx_PyObject_IsTrue(__pyx_cur_scope->__pyx_v_is_shadow_path); if (unlikely(__pyx_t_14 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1172; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_14 = __Pyx_PyObject_IsTrue(__pyx_cur_scope->__pyx_v_is_shadow_path); if (unlikely(__pyx_t_14 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1175; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __pyx_t_9 = ((!__pyx_t_14) != 0);
         if (__pyx_t_9) {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1173
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1176
  *                     num_subpatterns = arity
  *                     if not is_shadow_path:
  *                         num_subpatterns = num_subpatterns + 1             # <<<<<<<<<<<<<<
@@ -51765,14 +51937,14 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
         }
         __pyx_L65:;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1174
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1177
  *                     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_23 = PyObject_Length(__pyx_cur_scope->__pyx_v_phrase); if (unlikely(__pyx_t_23 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1174; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_23 = PyObject_Length(__pyx_cur_scope->__pyx_v_phrase); if (unlikely(__pyx_t_23 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1177; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __pyx_t_9 = (((__pyx_t_23 + 1) < __pyx_cur_scope->__pyx_v_self->max_length) != 0);
         if (__pyx_t_9) {
           __pyx_t_14 = ((__pyx_cur_scope->__pyx_v_arity < __pyx_cur_scope->__pyx_v_self->max_nonterminals) != 0);
@@ -51788,7 +51960,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
         }
         if (__pyx_t_14) {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1175
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1178
  *                         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)             # <<<<<<<<<<<<<<
@@ -51797,16 +51969,16 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
  */
           __pyx_cur_scope->__pyx_v_xcat = __pyx_f_4cdec_2sa_3_sa_sym_setindex(__pyx_cur_scope->__pyx_v_self->category, (__pyx_cur_scope->__pyx_v_arity + 1));
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1176
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1179
  *                     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_18 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__children); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1176; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_18 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_node, __pyx_n_s__children); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1179; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_18);
-          __pyx_t_16 = __Pyx_GetItemInt(__pyx_t_18, __pyx_cur_scope->__pyx_v_xcat, sizeof(int), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_16) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1176; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_16 = __Pyx_GetItemInt(__pyx_t_18, __pyx_cur_scope->__pyx_v_xcat, sizeof(int), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_16) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1179; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_16);
           __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
           __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_xnode);
@@ -51814,18 +51986,18 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
           __Pyx_GIVEREF(__pyx_t_16);
           __pyx_t_16 = 0;
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1178
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1181
  *                         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_16 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_self->min_gap_size); if (unlikely(!__pyx_t_16)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1178; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_16 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_self->min_gap_size); if (unlikely(!__pyx_t_16)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1181; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_16);
-          __pyx_t_18 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1178; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_18 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1181; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_18);
-          __pyx_t_10 = PyList_New(4); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1178; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_10 = PyList_New(4); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1181; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_10);
           PyList_SET_ITEM(__pyx_t_10, 0, __pyx_t_16);
           __Pyx_GIVEREF(__pyx_t_16);
@@ -51839,7 +52011,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
           __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_pathlen);
           __pyx_t_16 = 0;
           __pyx_t_18 = 0;
-          __pyx_t_18 = ((PyObject *)PyList_AsTuple(((PyObject*)__pyx_t_10))); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1178; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_18 = ((PyObject *)PyList_AsTuple(((PyObject*)__pyx_t_10))); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1181; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(((PyObject *)__pyx_t_18));
           __Pyx_DECREF(((PyObject *)__pyx_t_10)); __pyx_t_10 = 0;
           __Pyx_XGOTREF(((PyObject *)__pyx_cur_scope->__pyx_v_key));
@@ -51847,39 +52019,39 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
           __Pyx_GIVEREF(((PyObject *)__pyx_t_18));
           __pyx_t_18 = 0;
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1179
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1182
  *                         # 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_18 = PyList_New(0); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1179; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_18 = PyList_New(0); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1182; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_18);
           __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_frontier_nodes);
           __Pyx_XDECREF_SET(__pyx_cur_scope->__pyx_v_frontier_nodes, ((PyObject *)__pyx_t_18));
           __Pyx_GIVEREF(((PyObject *)__pyx_t_18));
           __pyx_t_18 = 0;
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1180
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1183
  *                         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_14 = (__Pyx_PyDict_Contains(((PyObject *)__pyx_cur_scope->__pyx_v_key), ((PyObject *)__pyx_cur_scope->__pyx_v_nodes_isteps_away_buffer), Py_EQ)); if (unlikely(__pyx_t_14 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1180; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_14 = (__Pyx_PyDict_Contains(((PyObject *)__pyx_cur_scope->__pyx_v_key), ((PyObject *)__pyx_cur_scope->__pyx_v_nodes_isteps_away_buffer), Py_EQ)); if (unlikely(__pyx_t_14 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1183; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __pyx_t_9 = (__pyx_t_14 != 0);
           if (__pyx_t_9) {
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1181
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1184
  *                         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_18 = __Pyx_PyDict_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_nodes_isteps_away_buffer), ((PyObject *)__pyx_cur_scope->__pyx_v_key)); if (!__pyx_t_18) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1181; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_18 = __Pyx_PyDict_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_nodes_isteps_away_buffer), ((PyObject *)__pyx_cur_scope->__pyx_v_key)); if (!__pyx_t_18) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1184; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_18);
             __Pyx_GOTREF(__pyx_cur_scope->__pyx_v_frontier_nodes);
             __Pyx_DECREF_SET(__pyx_cur_scope->__pyx_v_frontier_nodes, __pyx_t_18);
@@ -51889,20 +52061,20 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
           }
           /*else*/ {
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1183
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1186
  *                             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_18 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_cur_scope->__pyx_v_self), __pyx_n_s_129); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1183; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_18 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_cur_scope->__pyx_v_self), __pyx_n_s_129); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1186; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_18);
-            __pyx_t_10 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_self->min_gap_size); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1183; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_10 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_self->min_gap_size); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1186; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_10);
-            __pyx_t_16 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_16)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1183; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_16 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_16)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1186; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_16);
-            __pyx_t_11 = PyTuple_New(7); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1183; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_11 = PyTuple_New(7); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1186; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_11);
             PyTuple_SET_ITEM(__pyx_t_11, 0, __pyx_t_10);
             __Pyx_GIVEREF(__pyx_t_10);
@@ -51925,7 +52097,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
             __Pyx_GIVEREF(((PyObject *)__pyx_cur_scope->__pyx_v_reachable_buffer));
             __pyx_t_10 = 0;
             __pyx_t_16 = 0;
-            __pyx_t_16 = PyObject_Call(__pyx_t_18, ((PyObject *)__pyx_t_11), NULL); if (unlikely(!__pyx_t_16)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1183; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_16 = PyObject_Call(__pyx_t_18, ((PyObject *)__pyx_t_11), NULL); if (unlikely(!__pyx_t_16)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1186; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_16);
             __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
             __Pyx_DECREF(((PyObject *)__pyx_t_11)); __pyx_t_11 = 0;
@@ -51934,18 +52106,18 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
             __Pyx_GIVEREF(__pyx_t_16);
             __pyx_t_16 = 0;
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1184
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1187
  *                         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 = 1184; __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 = 1187; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           }
           __pyx_L67:;
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1186
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1189
  *                             nodes_isteps_away_buffer[key] = frontier_nodes
  * 
  *                         for i, alt, pathlen in frontier_nodes:             # <<<<<<<<<<<<<<
@@ -51956,7 +52128,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
             __pyx_t_16 = __pyx_cur_scope->__pyx_v_frontier_nodes; __Pyx_INCREF(__pyx_t_16); __pyx_t_23 = 0;
             __pyx_t_22 = NULL;
           } else {
-            __pyx_t_23 = -1; __pyx_t_16 = PyObject_GetIter(__pyx_cur_scope->__pyx_v_frontier_nodes); if (unlikely(!__pyx_t_16)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1186; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_23 = -1; __pyx_t_16 = PyObject_GetIter(__pyx_cur_scope->__pyx_v_frontier_nodes); if (unlikely(!__pyx_t_16)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1189; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_16);
             __pyx_t_22 = Py_TYPE(__pyx_t_16)->tp_iternext;
           }
@@ -51964,23 +52136,23 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
             if (!__pyx_t_22 && PyList_CheckExact(__pyx_t_16)) {
               if (__pyx_t_23 >= PyList_GET_SIZE(__pyx_t_16)) break;
               #if CYTHON_COMPILING_IN_CPYTHON
-              __pyx_t_11 = PyList_GET_ITEM(__pyx_t_16, __pyx_t_23); __Pyx_INCREF(__pyx_t_11); __pyx_t_23++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1186; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_11 = PyList_GET_ITEM(__pyx_t_16, __pyx_t_23); __Pyx_INCREF(__pyx_t_11); __pyx_t_23++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1189; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               #else
-              __pyx_t_11 = PySequence_ITEM(__pyx_t_16, __pyx_t_23); __pyx_t_23++; if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1186; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_11 = PySequence_ITEM(__pyx_t_16, __pyx_t_23); __pyx_t_23++; if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1189; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               #endif
             } else if (!__pyx_t_22 && PyTuple_CheckExact(__pyx_t_16)) {
               if (__pyx_t_23 >= PyTuple_GET_SIZE(__pyx_t_16)) break;
               #if CYTHON_COMPILING_IN_CPYTHON
-              __pyx_t_11 = PyTuple_GET_ITEM(__pyx_t_16, __pyx_t_23); __Pyx_INCREF(__pyx_t_11); __pyx_t_23++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1186; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_11 = PyTuple_GET_ITEM(__pyx_t_16, __pyx_t_23); __Pyx_INCREF(__pyx_t_11); __pyx_t_23++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1189; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               #else
-              __pyx_t_11 = PySequence_ITEM(__pyx_t_16, __pyx_t_23); __pyx_t_23++; if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1186; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_11 = PySequence_ITEM(__pyx_t_16, __pyx_t_23); __pyx_t_23++; if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1189; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               #endif
             } else {
               __pyx_t_11 = __pyx_t_22(__pyx_t_16);
               if (unlikely(!__pyx_t_11)) {
                 if (PyErr_Occurred()) {
                   if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-                  else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1186; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1189; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 }
                 break;
               }
@@ -51996,7 +52168,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
               if (unlikely(size != 3)) {
                 if (size > 3) __Pyx_RaiseTooManyValuesError(3);
                 else if (size >= 0) __Pyx_RaiseNeedMoreValuesError(size);
-                {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1186; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1189; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               }
               #if CYTHON_COMPILING_IN_CPYTHON
               if (likely(PyTuple_CheckExact(sequence))) {
@@ -52012,18 +52184,18 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
               __Pyx_INCREF(__pyx_t_10);
               __Pyx_INCREF(__pyx_t_12);
               #else
-              __pyx_t_18 = PySequence_ITEM(sequence, 0); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1186; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_18 = PySequence_ITEM(sequence, 0); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1189; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_18);
-              __pyx_t_10 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1186; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_10 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1189; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_10);
-              __pyx_t_12 = PySequence_ITEM(sequence, 2); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1186; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_12 = PySequence_ITEM(sequence, 2); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1189; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_12);
               #endif
               __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
             } else
             {
               Py_ssize_t index = -1;
-              __pyx_t_3 = PyObject_GetIter(__pyx_t_11); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1186; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_3 = PyObject_GetIter(__pyx_t_11); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1189; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_3);
               __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
               __pyx_t_20 = Py_TYPE(__pyx_t_3)->tp_iternext;
@@ -52033,7 +52205,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
               __Pyx_GOTREF(__pyx_t_10);
               index = 2; __pyx_t_12 = __pyx_t_20(__pyx_t_3); if (unlikely(!__pyx_t_12)) goto __pyx_L70_unpacking_failed;
               __Pyx_GOTREF(__pyx_t_12);
-              if (__Pyx_IternextUnpackEndCheck(__pyx_t_20(__pyx_t_3), 3) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1186; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              if (__Pyx_IternextUnpackEndCheck(__pyx_t_20(__pyx_t_3), 3) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1189; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __pyx_t_20 = NULL;
               __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
               goto __pyx_L71_unpacking_done;
@@ -52041,12 +52213,12 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
               __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
               __pyx_t_20 = NULL;
               if (__Pyx_IterFinish() == 0) __Pyx_RaiseNeedMoreValuesError(index);
-              {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1186; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1189; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __pyx_L71_unpacking_done:;
             }
-            __pyx_t_21 = __Pyx_PyInt_AsInt(__pyx_t_18); if (unlikely((__pyx_t_21 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1186; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_21 = __Pyx_PyInt_AsInt(__pyx_t_18); if (unlikely((__pyx_t_21 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1189; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
-            __pyx_t_7 = __Pyx_PyInt_AsInt(__pyx_t_10); if (unlikely((__pyx_t_7 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1186; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_7 = __Pyx_PyInt_AsInt(__pyx_t_10); if (unlikely((__pyx_t_7 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1189; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
             __pyx_cur_scope->__pyx_v_i = __pyx_t_21;
             __pyx_cur_scope->__pyx_v_alt = __pyx_t_7;
@@ -52055,40 +52227,40 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
             __Pyx_GIVEREF(__pyx_t_12);
             __pyx_t_12 = 0;
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1187
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1190
  * 
  *                         for i, alt, pathlen in frontier_nodes:
  *                             new_frontier.append((k, i, input_match + (i,), alt, pathlen, xnode, phrase +(xcat,), is_shadow_path))             # <<<<<<<<<<<<<<
  *             frontier = new_frontier
  * 
  */
-            __pyx_t_11 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_k); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1187; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_11 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_k); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1190; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_11);
-            __pyx_t_12 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1187; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_12 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1190; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_12);
-            __pyx_t_10 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1187; __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 = 1190; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_10);
-            __pyx_t_18 = PyTuple_New(1); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1187; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_18 = PyTuple_New(1); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1190; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_18);
             PyTuple_SET_ITEM(__pyx_t_18, 0, __pyx_t_10);
             __Pyx_GIVEREF(__pyx_t_10);
             __pyx_t_10 = 0;
-            __pyx_t_10 = PyNumber_Add(__pyx_cur_scope->__pyx_v_input_match, ((PyObject *)__pyx_t_18)); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1187; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_10 = PyNumber_Add(__pyx_cur_scope->__pyx_v_input_match, ((PyObject *)__pyx_t_18)); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1190; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_10);
             __Pyx_DECREF(((PyObject *)__pyx_t_18)); __pyx_t_18 = 0;
-            __pyx_t_18 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_alt); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1187; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_18 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_alt); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1190; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_18);
-            __pyx_t_3 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_xcat); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1187; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_3 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_xcat); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1190; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_3);
-            __pyx_t_8 = PyTuple_New(1); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1187; __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 = 1190; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_8);
             PyTuple_SET_ITEM(__pyx_t_8, 0, __pyx_t_3);
             __Pyx_GIVEREF(__pyx_t_3);
             __pyx_t_3 = 0;
-            __pyx_t_3 = PyNumber_Add(__pyx_cur_scope->__pyx_v_phrase, ((PyObject *)__pyx_t_8)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1187; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_3 = PyNumber_Add(__pyx_cur_scope->__pyx_v_phrase, ((PyObject *)__pyx_t_8)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1190; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_3);
             __Pyx_DECREF(((PyObject *)__pyx_t_8)); __pyx_t_8 = 0;
-            __pyx_t_8 = PyTuple_New(8); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1187; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_8 = PyTuple_New(8); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1190; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_8);
             PyTuple_SET_ITEM(__pyx_t_8, 0, __pyx_t_11);
             __Pyx_GIVEREF(__pyx_t_11);
@@ -52114,7 +52286,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
             __pyx_t_10 = 0;
             __pyx_t_18 = 0;
             __pyx_t_3 = 0;
-            __pyx_t_13 = __Pyx_PyList_Append(__pyx_cur_scope->__pyx_v_new_frontier, ((PyObject *)__pyx_t_8)); if (unlikely(__pyx_t_13 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1187; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_13 = __Pyx_PyList_Append(__pyx_cur_scope->__pyx_v_new_frontier, ((PyObject *)__pyx_t_8)); if (unlikely(__pyx_t_13 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1190; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_DECREF(((PyObject *)__pyx_t_8)); __pyx_t_8 = 0;
           }
           __Pyx_DECREF(__pyx_t_16); __pyx_t_16 = 0;
@@ -52128,7 +52300,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
     }
     __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1188
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1191
  *                         for i, alt, pathlen in frontier_nodes:
  *                             new_frontier.append((k, i, input_match + (i,), alt, pathlen, xnode, phrase +(xcat,), is_shadow_path))
  *             frontier = new_frontier             # <<<<<<<<<<<<<<
@@ -52141,7 +52313,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
     __Pyx_GIVEREF(((PyObject *)__pyx_cur_scope->__pyx_v_new_frontier));
   }
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1191
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1194
  * 
  *         # Online rule extraction and scoring
  *         if self.online:             # <<<<<<<<<<<<<<
@@ -52151,55 +52323,55 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
   __pyx_t_9 = (__pyx_cur_scope->__pyx_v_self->online != 0);
   if (__pyx_t_9) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1192
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1195
  *         # Online rule extraction and scoring
  *         if self.online:
  *             stats = self.online_stats[ctx_name]             # <<<<<<<<<<<<<<
  *             f_syms = tuple(word[0][0] for word in fwords)
  *             for f, lex_i, lex_j in self.get_f_phrases(f_syms):
  */
-    __pyx_t_15 = PyObject_GetItem(__pyx_cur_scope->__pyx_v_self->online_stats, __pyx_cur_scope->__pyx_v_ctx_name); if (!__pyx_t_15) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1192; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_15 = PyObject_GetItem(__pyx_cur_scope->__pyx_v_self->online_stats, __pyx_cur_scope->__pyx_v_ctx_name); if (!__pyx_t_15) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1195; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_15);
     __Pyx_GIVEREF(__pyx_t_15);
     __pyx_cur_scope->__pyx_v_stats = __pyx_t_15;
     __pyx_t_15 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1193
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1196
  *         if self.online:
  *             stats = self.online_stats[ctx_name]
  *             f_syms = tuple(word[0][0] for word in fwords)             # <<<<<<<<<<<<<<
  *             for f, lex_i, lex_j in self.get_f_phrases(f_syms):
  *                 spanlen = (lex_j - lex_i) + 1
  */
-    __pyx_t_15 = __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5input_2genexpr(((PyObject*)__pyx_cur_scope)); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1193; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_15 = __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_5input_2genexpr(((PyObject*)__pyx_cur_scope)); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1196; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_15);
-    __pyx_t_16 = PyTuple_New(1); if (unlikely(!__pyx_t_16)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1193; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_16 = PyTuple_New(1); if (unlikely(!__pyx_t_16)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1196; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_16);
     PyTuple_SET_ITEM(__pyx_t_16, 0, __pyx_t_15);
     __Pyx_GIVEREF(__pyx_t_15);
     __pyx_t_15 = 0;
-    __pyx_t_15 = PyObject_Call(((PyObject *)((PyObject*)(&PyTuple_Type))), ((PyObject *)__pyx_t_16), NULL); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1193; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_15 = PyObject_Call(((PyObject *)((PyObject*)(&PyTuple_Type))), ((PyObject *)__pyx_t_16), NULL); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1196; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_15);
     __Pyx_DECREF(((PyObject *)__pyx_t_16)); __pyx_t_16 = 0;
     __Pyx_GIVEREF(__pyx_t_15);
     __pyx_cur_scope->__pyx_v_f_syms = ((PyObject*)__pyx_t_15);
     __pyx_t_15 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1194
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1197
  *             stats = self.online_stats[ctx_name]
  *             f_syms = tuple(word[0][0] for word in fwords)
  *             for f, lex_i, lex_j in self.get_f_phrases(f_syms):             # <<<<<<<<<<<<<<
  *                 spanlen = (lex_j - lex_i) + 1
  *                 if not sym_isvar(f[0]):
  */
-    __pyx_t_15 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_cur_scope->__pyx_v_self), __pyx_n_s__get_f_phrases); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1194; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_15 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_cur_scope->__pyx_v_self), __pyx_n_s__get_f_phrases); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1197; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_15);
-    __pyx_t_16 = PyTuple_New(1); if (unlikely(!__pyx_t_16)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1194; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_16 = PyTuple_New(1); if (unlikely(!__pyx_t_16)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1197; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_16);
     __Pyx_INCREF(((PyObject *)__pyx_cur_scope->__pyx_v_f_syms));
     PyTuple_SET_ITEM(__pyx_t_16, 0, ((PyObject *)__pyx_cur_scope->__pyx_v_f_syms));
     __Pyx_GIVEREF(((PyObject *)__pyx_cur_scope->__pyx_v_f_syms));
-    __pyx_t_8 = PyObject_Call(__pyx_t_15, ((PyObject *)__pyx_t_16), NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1194; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_8 = PyObject_Call(__pyx_t_15, ((PyObject *)__pyx_t_16), NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1197; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_8);
     __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
     __Pyx_DECREF(((PyObject *)__pyx_t_16)); __pyx_t_16 = 0;
@@ -52207,7 +52379,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
       __pyx_t_16 = __pyx_t_8; __Pyx_INCREF(__pyx_t_16); __pyx_t_2 = 0;
       __pyx_t_22 = NULL;
     } else {
-      __pyx_t_2 = -1; __pyx_t_16 = PyObject_GetIter(__pyx_t_8); if (unlikely(!__pyx_t_16)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1194; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = -1; __pyx_t_16 = PyObject_GetIter(__pyx_t_8); if (unlikely(!__pyx_t_16)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1197; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_16);
       __pyx_t_22 = Py_TYPE(__pyx_t_16)->tp_iternext;
     }
@@ -52216,23 +52388,23 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
       if (!__pyx_t_22 && PyList_CheckExact(__pyx_t_16)) {
         if (__pyx_t_2 >= PyList_GET_SIZE(__pyx_t_16)) break;
         #if CYTHON_COMPILING_IN_CPYTHON
-        __pyx_t_8 = PyList_GET_ITEM(__pyx_t_16, __pyx_t_2); __Pyx_INCREF(__pyx_t_8); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1194; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_8 = PyList_GET_ITEM(__pyx_t_16, __pyx_t_2); __Pyx_INCREF(__pyx_t_8); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1197; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         #else
-        __pyx_t_8 = PySequence_ITEM(__pyx_t_16, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1194; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_8 = PySequence_ITEM(__pyx_t_16, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1197; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         #endif
       } else if (!__pyx_t_22 && PyTuple_CheckExact(__pyx_t_16)) {
         if (__pyx_t_2 >= PyTuple_GET_SIZE(__pyx_t_16)) break;
         #if CYTHON_COMPILING_IN_CPYTHON
-        __pyx_t_8 = PyTuple_GET_ITEM(__pyx_t_16, __pyx_t_2); __Pyx_INCREF(__pyx_t_8); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1194; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_8 = PyTuple_GET_ITEM(__pyx_t_16, __pyx_t_2); __Pyx_INCREF(__pyx_t_8); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1197; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         #else
-        __pyx_t_8 = PySequence_ITEM(__pyx_t_16, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1194; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_8 = PySequence_ITEM(__pyx_t_16, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1197; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         #endif
       } else {
         __pyx_t_8 = __pyx_t_22(__pyx_t_16);
         if (unlikely(!__pyx_t_8)) {
           if (PyErr_Occurred()) {
             if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-            else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1194; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1197; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           }
           break;
         }
@@ -52248,7 +52420,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
         if (unlikely(size != 3)) {
           if (size > 3) __Pyx_RaiseTooManyValuesError(3);
           else if (size >= 0) __Pyx_RaiseNeedMoreValuesError(size);
-          {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1194; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1197; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         }
         #if CYTHON_COMPILING_IN_CPYTHON
         if (likely(PyTuple_CheckExact(sequence))) {
@@ -52264,18 +52436,18 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
         __Pyx_INCREF(__pyx_t_3);
         __Pyx_INCREF(__pyx_t_18);
         #else
-        __pyx_t_15 = PySequence_ITEM(sequence, 0); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1194; __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 = 1197; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_15);
-        __pyx_t_3 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1194; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_3 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1197; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_3);
-        __pyx_t_18 = PySequence_ITEM(sequence, 2); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1194; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_18 = PySequence_ITEM(sequence, 2); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1197; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_18);
         #endif
         __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
       } else
       {
         Py_ssize_t index = -1;
-        __pyx_t_10 = PyObject_GetIter(__pyx_t_8); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1194; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_10 = PyObject_GetIter(__pyx_t_8); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1197; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_10);
         __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
         __pyx_t_20 = Py_TYPE(__pyx_t_10)->tp_iternext;
@@ -52285,7 +52457,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
         __Pyx_GOTREF(__pyx_t_3);
         index = 2; __pyx_t_18 = __pyx_t_20(__pyx_t_10); if (unlikely(!__pyx_t_18)) goto __pyx_L75_unpacking_failed;
         __Pyx_GOTREF(__pyx_t_18);
-        if (__Pyx_IternextUnpackEndCheck(__pyx_t_20(__pyx_t_10), 3) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1194; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        if (__Pyx_IternextUnpackEndCheck(__pyx_t_20(__pyx_t_10), 3) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1197; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __pyx_t_20 = NULL;
         __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
         goto __pyx_L76_unpacking_done;
@@ -52293,7 +52465,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
         __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
         __pyx_t_20 = NULL;
         if (__Pyx_IterFinish() == 0) __Pyx_RaiseNeedMoreValuesError(index);
-        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1194; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1197; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __pyx_L76_unpacking_done:;
       }
       __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_f);
@@ -52309,16 +52481,16 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
       __Pyx_GIVEREF(__pyx_t_18);
       __pyx_t_18 = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1195
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1198
  *             f_syms = tuple(word[0][0] for word in fwords)
  *             for f, lex_i, lex_j in self.get_f_phrases(f_syms):
  *                 spanlen = (lex_j - lex_i) + 1             # <<<<<<<<<<<<<<
  *                 if not sym_isvar(f[0]):
  *                     spanlen += 1
  */
-      __pyx_t_8 = PyNumber_Subtract(__pyx_cur_scope->__pyx_v_lex_j, __pyx_cur_scope->__pyx_v_lex_i); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1195; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = PyNumber_Subtract(__pyx_cur_scope->__pyx_v_lex_j, __pyx_cur_scope->__pyx_v_lex_i); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1198; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_8);
-      __pyx_t_18 = PyNumber_Add(__pyx_t_8, __pyx_int_1); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1195; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_18 = PyNumber_Add(__pyx_t_8, __pyx_int_1); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1198; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_18);
       __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
       __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_spanlen);
@@ -52326,28 +52498,28 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
       __Pyx_GIVEREF(__pyx_t_18);
       __pyx_t_18 = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1196
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1199
  *             for f, lex_i, lex_j in self.get_f_phrases(f_syms):
  *                 spanlen = (lex_j - lex_i) + 1
  *                 if not sym_isvar(f[0]):             # <<<<<<<<<<<<<<
  *                     spanlen += 1
  *                 if not sym_isvar(f[1]):
  */
-      __pyx_t_18 = __Pyx_GetItemInt(__pyx_cur_scope->__pyx_v_f, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_18) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1196; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_18 = __Pyx_GetItemInt(__pyx_cur_scope->__pyx_v_f, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_18) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1199; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_18);
-      __pyx_t_7 = __Pyx_PyInt_AsInt(__pyx_t_18); if (unlikely((__pyx_t_7 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1196; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_7 = __Pyx_PyInt_AsInt(__pyx_t_18); if (unlikely((__pyx_t_7 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1199; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
       __pyx_t_9 = ((!(__pyx_f_4cdec_2sa_3_sa_sym_isvar(__pyx_t_7) != 0)) != 0);
       if (__pyx_t_9) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1197
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1200
  *                 spanlen = (lex_j - lex_i) + 1
  *                 if not sym_isvar(f[0]):
  *                     spanlen += 1             # <<<<<<<<<<<<<<
  *                 if not sym_isvar(f[1]):
  *                     spanlen += 1
  */
-        __pyx_t_18 = PyNumber_InPlaceAdd(__pyx_cur_scope->__pyx_v_spanlen, __pyx_int_1); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1197; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_18 = PyNumber_InPlaceAdd(__pyx_cur_scope->__pyx_v_spanlen, __pyx_int_1); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1200; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_18);
         __Pyx_GOTREF(__pyx_cur_scope->__pyx_v_spanlen);
         __Pyx_DECREF_SET(__pyx_cur_scope->__pyx_v_spanlen, __pyx_t_18);
@@ -52357,28 +52529,28 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
       }
       __pyx_L77:;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1198
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1201
  *                 if not sym_isvar(f[0]):
  *                     spanlen += 1
  *                 if not sym_isvar(f[1]):             # <<<<<<<<<<<<<<
  *                     spanlen += 1
  *                 for e in stats.phrases_fe.get(f, ()):
  */
-      __pyx_t_18 = __Pyx_GetItemInt(__pyx_cur_scope->__pyx_v_f, 1, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_18) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1198; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_18 = __Pyx_GetItemInt(__pyx_cur_scope->__pyx_v_f, 1, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_18) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1201; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_18);
-      __pyx_t_7 = __Pyx_PyInt_AsInt(__pyx_t_18); if (unlikely((__pyx_t_7 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1198; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_7 = __Pyx_PyInt_AsInt(__pyx_t_18); if (unlikely((__pyx_t_7 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1201; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
       __pyx_t_9 = ((!(__pyx_f_4cdec_2sa_3_sa_sym_isvar(__pyx_t_7) != 0)) != 0);
       if (__pyx_t_9) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1199
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1202
  *                     spanlen += 1
  *                 if not sym_isvar(f[1]):
  *                     spanlen += 1             # <<<<<<<<<<<<<<
  *                 for e in stats.phrases_fe.get(f, ()):
  *                     if (f, e) not in seen_phrases:
  */
-        __pyx_t_18 = PyNumber_InPlaceAdd(__pyx_cur_scope->__pyx_v_spanlen, __pyx_int_1); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1199; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_18 = PyNumber_InPlaceAdd(__pyx_cur_scope->__pyx_v_spanlen, __pyx_int_1); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1202; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_18);
         __Pyx_GOTREF(__pyx_cur_scope->__pyx_v_spanlen);
         __Pyx_DECREF_SET(__pyx_cur_scope->__pyx_v_spanlen, __pyx_t_18);
@@ -52388,19 +52560,19 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
       }
       __pyx_L78:;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1200
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1203
  *                 if not sym_isvar(f[1]):
  *                     spanlen += 1
  *                 for e in stats.phrases_fe.get(f, ()):             # <<<<<<<<<<<<<<
  *                     if (f, e) not in seen_phrases:
  *                         # Don't add multiple instances of the same phrase here
  */
-      __pyx_t_18 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_stats, __pyx_n_s__phrases_fe); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1200; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_18 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_stats, __pyx_n_s__phrases_fe); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1203; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_18);
-      __pyx_t_8 = __Pyx_PyObject_GetAttrStr(__pyx_t_18, __pyx_n_s__get); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1200; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = __Pyx_PyObject_GetAttrStr(__pyx_t_18, __pyx_n_s__get); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1203; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_8);
       __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
-      __pyx_t_18 = PyTuple_New(2); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1200; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_18 = PyTuple_New(2); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1203; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_18);
       __Pyx_INCREF(__pyx_cur_scope->__pyx_v_f);
       PyTuple_SET_ITEM(__pyx_t_18, 0, __pyx_cur_scope->__pyx_v_f);
@@ -52408,7 +52580,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
       __Pyx_INCREF(((PyObject *)__pyx_empty_tuple));
       PyTuple_SET_ITEM(__pyx_t_18, 1, ((PyObject *)__pyx_empty_tuple));
       __Pyx_GIVEREF(((PyObject *)__pyx_empty_tuple));
-      __pyx_t_3 = PyObject_Call(__pyx_t_8, ((PyObject *)__pyx_t_18), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1200; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = PyObject_Call(__pyx_t_8, ((PyObject *)__pyx_t_18), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1203; __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_18)); __pyx_t_18 = 0;
@@ -52416,7 +52588,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
         __pyx_t_18 = __pyx_t_3; __Pyx_INCREF(__pyx_t_18); __pyx_t_23 = 0;
         __pyx_t_29 = NULL;
       } else {
-        __pyx_t_23 = -1; __pyx_t_18 = PyObject_GetIter(__pyx_t_3); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1200; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_23 = -1; __pyx_t_18 = PyObject_GetIter(__pyx_t_3); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1203; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_18);
         __pyx_t_29 = Py_TYPE(__pyx_t_18)->tp_iternext;
       }
@@ -52425,23 +52597,23 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
         if (!__pyx_t_29 && PyList_CheckExact(__pyx_t_18)) {
           if (__pyx_t_23 >= PyList_GET_SIZE(__pyx_t_18)) break;
           #if CYTHON_COMPILING_IN_CPYTHON
-          __pyx_t_3 = PyList_GET_ITEM(__pyx_t_18, __pyx_t_23); __Pyx_INCREF(__pyx_t_3); __pyx_t_23++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1200; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_3 = PyList_GET_ITEM(__pyx_t_18, __pyx_t_23); __Pyx_INCREF(__pyx_t_3); __pyx_t_23++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1203; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           #else
-          __pyx_t_3 = PySequence_ITEM(__pyx_t_18, __pyx_t_23); __pyx_t_23++; if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1200; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_3 = PySequence_ITEM(__pyx_t_18, __pyx_t_23); __pyx_t_23++; if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1203; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           #endif
         } else if (!__pyx_t_29 && PyTuple_CheckExact(__pyx_t_18)) {
           if (__pyx_t_23 >= PyTuple_GET_SIZE(__pyx_t_18)) break;
           #if CYTHON_COMPILING_IN_CPYTHON
-          __pyx_t_3 = PyTuple_GET_ITEM(__pyx_t_18, __pyx_t_23); __Pyx_INCREF(__pyx_t_3); __pyx_t_23++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1200; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_3 = PyTuple_GET_ITEM(__pyx_t_18, __pyx_t_23); __Pyx_INCREF(__pyx_t_3); __pyx_t_23++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1203; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           #else
-          __pyx_t_3 = PySequence_ITEM(__pyx_t_18, __pyx_t_23); __pyx_t_23++; if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1200; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_3 = PySequence_ITEM(__pyx_t_18, __pyx_t_23); __pyx_t_23++; if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1203; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           #endif
         } else {
           __pyx_t_3 = __pyx_t_29(__pyx_t_18);
           if (unlikely(!__pyx_t_3)) {
             if (PyErr_Occurred()) {
               if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-              else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1200; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1203; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             }
             break;
           }
@@ -52452,14 +52624,14 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
         __Pyx_GIVEREF(__pyx_t_3);
         __pyx_t_3 = 0;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1201
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1204
  *                     spanlen += 1
  *                 for e in stats.phrases_fe.get(f, ()):
  *                     if (f, e) not in seen_phrases:             # <<<<<<<<<<<<<<
  *                         # Don't add multiple instances of the same phrase here
  *                         seen_phrases.add((f, e))
  */
-        __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1201; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1204; __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);
@@ -52467,19 +52639,19 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
         __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_t_9 = (__Pyx_PySequence_Contains(((PyObject *)__pyx_t_3), ((PyObject *)__pyx_cur_scope->__pyx_v_seen_phrases), Py_NE)); if (unlikely(__pyx_t_9 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1201; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_9 = (__Pyx_PySequence_Contains(((PyObject *)__pyx_t_3), ((PyObject *)__pyx_cur_scope->__pyx_v_seen_phrases), Py_NE)); if (unlikely(__pyx_t_9 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1204; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
         __pyx_t_14 = (__pyx_t_9 != 0);
         if (__pyx_t_14) {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1203
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1206
  *                     if (f, e) not in seen_phrases:
  *                         # Don't add multiple instances of the same phrase here
  *                         seen_phrases.add((f, e))             # <<<<<<<<<<<<<<
  *                         scores = self.scorer.score(FeatureContext(
  *                                 f, e, 0, 0, 0,
  */
-          __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1203; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1206; __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);
@@ -52487,29 +52659,29 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
           __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_t_13 = PySet_Add(__pyx_cur_scope->__pyx_v_seen_phrases, ((PyObject *)__pyx_t_3)); if (unlikely(__pyx_t_13 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1203; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_13 = PySet_Add(__pyx_cur_scope->__pyx_v_seen_phrases, ((PyObject *)__pyx_t_3)); if (unlikely(__pyx_t_13 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1206; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1204
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1207
  *                         # Don't add multiple instances of the same phrase here
  *                         seen_phrases.add((f, e))
  *                         scores = self.scorer.score(FeatureContext(             # <<<<<<<<<<<<<<
  *                                 f, e, 0, 0, 0,
  *                                 spanlen, None, None,
  */
-          __pyx_t_3 = __Pyx_GetModuleGlobalName(__pyx_n_s__FeatureContext); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1204; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_3 = __Pyx_GetModuleGlobalName(__pyx_n_s__FeatureContext); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1207; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_3);
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1209
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1212
  *                                 fwords, self.fda, self.eda,
  *                                 meta,
  *                                 self.online_ctx_lookup(f, e, ctx_name)))             # <<<<<<<<<<<<<<
  *                         alignment = stats.phrases_al[f][e]
  *                         yield Rule(self.category, f, e, scores, alignment)
  */
-          __pyx_t_8 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_cur_scope->__pyx_v_self), __pyx_n_s__online_ctx_lookup); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1209; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_8 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_cur_scope->__pyx_v_self), __pyx_n_s__online_ctx_lookup); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1212; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_8);
-          __pyx_t_15 = PyTuple_New(3); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1209; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_15 = PyTuple_New(3); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1212; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_15);
           __Pyx_INCREF(__pyx_cur_scope->__pyx_v_f);
           PyTuple_SET_ITEM(__pyx_t_15, 0, __pyx_cur_scope->__pyx_v_f);
@@ -52520,11 +52692,11 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
           __Pyx_INCREF(__pyx_cur_scope->__pyx_v_ctx_name);
           PyTuple_SET_ITEM(__pyx_t_15, 2, __pyx_cur_scope->__pyx_v_ctx_name);
           __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_ctx_name);
-          __pyx_t_10 = PyObject_Call(__pyx_t_8, ((PyObject *)__pyx_t_15), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1209; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_10 = PyObject_Call(__pyx_t_8, ((PyObject *)__pyx_t_15), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1212; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_10);
           __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
           __Pyx_DECREF(((PyObject *)__pyx_t_15)); __pyx_t_15 = 0;
-          __pyx_t_15 = PyTuple_New(13); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1204; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_15 = PyTuple_New(13); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1207; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_15);
           __Pyx_INCREF(__pyx_cur_scope->__pyx_v_f);
           PyTuple_SET_ITEM(__pyx_t_15, 0, __pyx_cur_scope->__pyx_v_f);
@@ -52565,11 +52737,11 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
           PyTuple_SET_ITEM(__pyx_t_15, 12, __pyx_t_10);
           __Pyx_GIVEREF(__pyx_t_10);
           __pyx_t_10 = 0;
-          __pyx_t_10 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_15), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1204; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_10 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_15), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1207; __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_15)); __pyx_t_15 = 0;
-          __pyx_t_15 = ((PyObject *)((struct __pyx_vtabstruct_4cdec_2sa_3_sa_Scorer *)__pyx_cur_scope->__pyx_v_self->scorer->__pyx_vtab)->score(__pyx_cur_scope->__pyx_v_self->scorer, __pyx_t_10)); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1204; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_15 = ((PyObject *)((struct __pyx_vtabstruct_4cdec_2sa_3_sa_Scorer *)__pyx_cur_scope->__pyx_v_self->scorer->__pyx_vtab)->score(__pyx_cur_scope->__pyx_v_self->scorer, __pyx_t_10)); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1207; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_15);
           __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
           __Pyx_XGOTREF(((PyObject *)__pyx_cur_scope->__pyx_v_scores));
@@ -52577,19 +52749,19 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
           __Pyx_GIVEREF(__pyx_t_15);
           __pyx_t_15 = 0;
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1210
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1213
  *                                 meta,
  *                                 self.online_ctx_lookup(f, e, ctx_name)))
  *                         alignment = stats.phrases_al[f][e]             # <<<<<<<<<<<<<<
  *                         yield Rule(self.category, f, e, scores, alignment)
  * 
  */
-          __pyx_t_15 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_stats, __pyx_n_s__phrases_al); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1210; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_15 = __Pyx_PyObject_GetAttrStr(__pyx_cur_scope->__pyx_v_stats, __pyx_n_s__phrases_al); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1213; __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_f); if (!__pyx_t_10) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1210; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_10 = PyObject_GetItem(__pyx_t_15, __pyx_cur_scope->__pyx_v_f); if (!__pyx_t_10) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1213; __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_e); if (!__pyx_t_15) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1210; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_15 = PyObject_GetItem(__pyx_t_10, __pyx_cur_scope->__pyx_v_e); if (!__pyx_t_15) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1213; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_15);
           __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
           __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_alignment);
@@ -52597,16 +52769,16 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
           __Pyx_GIVEREF(__pyx_t_15);
           __pyx_t_15 = 0;
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1211
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1214
  *                                 self.online_ctx_lookup(f, e, ctx_name)))
  *                         alignment = stats.phrases_al[f][e]
  *                         yield Rule(self.category, f, e, scores, alignment)             # <<<<<<<<<<<<<<
  * 
  *         stop_time = monitor_cpu()
  */
-          __pyx_t_15 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_self->category); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1211; __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 = 1214; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_15);
-          __pyx_t_10 = PyTuple_New(5); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1211; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_10 = PyTuple_New(5); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1214; __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);
@@ -52623,7 +52795,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
           PyTuple_SET_ITEM(__pyx_t_10, 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_4cdec_2sa_3_sa_Rule)), ((PyObject *)__pyx_t_10), NULL); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1211; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_15 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_Rule)), ((PyObject *)__pyx_t_10), NULL); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1214; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_15);
           __Pyx_DECREF(((PyObject *)__pyx_t_10)); __pyx_t_10 = 0;
           __pyx_r = __pyx_t_15;
@@ -52652,7 +52824,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
           __pyx_t_22 = __pyx_cur_scope->__pyx_t_10;
           __pyx_t_23 = __pyx_cur_scope->__pyx_t_1;
           __pyx_t_29 = __pyx_cur_scope->__pyx_t_11;
-          if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1211; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1214; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           goto __pyx_L81;
         }
         __pyx_L81:;
@@ -52664,40 +52836,40 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
   }
   __pyx_L72:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1213
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1216
  *                         yield Rule(self.category, f, e, scores, alignment)
  * 
  *         stop_time = monitor_cpu()             # <<<<<<<<<<<<<<
  *         logger.info("Total time for rule lookup, extraction, and scoring = %f seconds", (stop_time - start_time))
  *         gc.collect()
  */
-  __pyx_t_16 = __Pyx_GetModuleGlobalName(__pyx_n_s__monitor_cpu); if (unlikely(!__pyx_t_16)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1213; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_16 = __Pyx_GetModuleGlobalName(__pyx_n_s__monitor_cpu); if (unlikely(!__pyx_t_16)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1216; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_16);
-  __pyx_t_18 = PyObject_Call(__pyx_t_16, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1213; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_18 = PyObject_Call(__pyx_t_16, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1216; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_18);
   __Pyx_DECREF(__pyx_t_16); __pyx_t_16 = 0;
   __Pyx_GIVEREF(__pyx_t_18);
   __pyx_cur_scope->__pyx_v_stop_time = __pyx_t_18;
   __pyx_t_18 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1214
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1217
  * 
  *         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_18 = __Pyx_GetModuleGlobalName(__pyx_n_s__logger); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1214; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_18 = __Pyx_GetModuleGlobalName(__pyx_n_s__logger); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1217; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_18);
-  __pyx_t_16 = __Pyx_PyObject_GetAttrStr(__pyx_t_18, __pyx_n_s__info); if (unlikely(!__pyx_t_16)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1214; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_16 = __Pyx_PyObject_GetAttrStr(__pyx_t_18, __pyx_n_s__info); if (unlikely(!__pyx_t_16)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1217; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_16);
   __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
-  __pyx_t_18 = PyFloat_FromDouble(__pyx_cur_scope->__pyx_v_start_time); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1214; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_18 = PyFloat_FromDouble(__pyx_cur_scope->__pyx_v_start_time); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1217; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_18);
-  __pyx_t_15 = PyNumber_Subtract(__pyx_cur_scope->__pyx_v_stop_time, __pyx_t_18); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1214; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_15 = PyNumber_Subtract(__pyx_cur_scope->__pyx_v_stop_time, __pyx_t_18); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1217; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_15);
   __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
-  __pyx_t_18 = PyTuple_New(2); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1214; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_18 = PyTuple_New(2); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1217; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_18);
   __Pyx_INCREF(((PyObject *)__pyx_kp_s_130));
   PyTuple_SET_ITEM(__pyx_t_18, 0, ((PyObject *)__pyx_kp_s_130));
@@ -52705,44 +52877,44 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
   PyTuple_SET_ITEM(__pyx_t_18, 1, __pyx_t_15);
   __Pyx_GIVEREF(__pyx_t_15);
   __pyx_t_15 = 0;
-  __pyx_t_15 = PyObject_Call(__pyx_t_16, ((PyObject *)__pyx_t_18), NULL); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1214; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_15 = PyObject_Call(__pyx_t_16, ((PyObject *)__pyx_t_18), NULL); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1217; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_15);
   __Pyx_DECREF(__pyx_t_16); __pyx_t_16 = 0;
   __Pyx_DECREF(((PyObject *)__pyx_t_18)); __pyx_t_18 = 0;
   __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1215
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1218
  *         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)
  *         logger.info("    Intersect time = %f seconds", self.intersect_time)
  */
-  __pyx_t_15 = __Pyx_GetModuleGlobalName(__pyx_n_s__gc); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1215; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_15 = __Pyx_GetModuleGlobalName(__pyx_n_s__gc); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1218; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_15);
-  __pyx_t_18 = __Pyx_PyObject_GetAttrStr(__pyx_t_15, __pyx_n_s__collect); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1215; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_18 = __Pyx_PyObject_GetAttrStr(__pyx_t_15, __pyx_n_s__collect); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1218; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_18);
   __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
-  __pyx_t_15 = PyObject_Call(__pyx_t_18, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1215; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_15 = PyObject_Call(__pyx_t_18, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1218; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_15);
   __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
   __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1216
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1219
  *         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)             # <<<<<<<<<<<<<<
  *         logger.info("    Intersect time = %f seconds", self.intersect_time)
  * 
  */
-  __pyx_t_15 = __Pyx_GetModuleGlobalName(__pyx_n_s__logger); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1216; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_15 = __Pyx_GetModuleGlobalName(__pyx_n_s__logger); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1219; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_15);
-  __pyx_t_18 = __Pyx_PyObject_GetAttrStr(__pyx_t_15, __pyx_n_s__info); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1216; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_18 = __Pyx_PyObject_GetAttrStr(__pyx_t_15, __pyx_n_s__info); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1219; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_18);
   __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
-  __pyx_t_15 = PyFloat_FromDouble(__pyx_cur_scope->__pyx_v_self->extract_time); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1216; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_15 = PyFloat_FromDouble(__pyx_cur_scope->__pyx_v_self->extract_time); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1219; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_15);
-  __pyx_t_16 = PyTuple_New(2); if (unlikely(!__pyx_t_16)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1216; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_16 = PyTuple_New(2); if (unlikely(!__pyx_t_16)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1219; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_16);
   __Pyx_INCREF(((PyObject *)__pyx_kp_s_131));
   PyTuple_SET_ITEM(__pyx_t_16, 0, ((PyObject *)__pyx_kp_s_131));
@@ -52750,27 +52922,27 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
   PyTuple_SET_ITEM(__pyx_t_16, 1, __pyx_t_15);
   __Pyx_GIVEREF(__pyx_t_15);
   __pyx_t_15 = 0;
-  __pyx_t_15 = PyObject_Call(__pyx_t_18, ((PyObject *)__pyx_t_16), NULL); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1216; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_15 = PyObject_Call(__pyx_t_18, ((PyObject *)__pyx_t_16), NULL); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1219; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_15);
   __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
   __Pyx_DECREF(((PyObject *)__pyx_t_16)); __pyx_t_16 = 0;
   __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1217
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1220
  *         gc.collect()
  *         logger.info("    Extract time = %f seconds", self.extract_time)
  *         logger.info("    Intersect time = %f seconds", self.intersect_time)             # <<<<<<<<<<<<<<
  * 
  * 
  */
-  __pyx_t_15 = __Pyx_GetModuleGlobalName(__pyx_n_s__logger); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1217; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_15 = __Pyx_GetModuleGlobalName(__pyx_n_s__logger); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1220; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_15);
-  __pyx_t_16 = __Pyx_PyObject_GetAttrStr(__pyx_t_15, __pyx_n_s__info); if (unlikely(!__pyx_t_16)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1217; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_16 = __Pyx_PyObject_GetAttrStr(__pyx_t_15, __pyx_n_s__info); if (unlikely(!__pyx_t_16)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1220; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_16);
   __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
-  __pyx_t_15 = PyFloat_FromDouble(__pyx_cur_scope->__pyx_v_self->intersect_time); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1217; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_15 = PyFloat_FromDouble(__pyx_cur_scope->__pyx_v_self->intersect_time); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1220; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_15);
-  __pyx_t_18 = PyTuple_New(2); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1217; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_18 = PyTuple_New(2); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1220; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_18);
   __Pyx_INCREF(((PyObject *)__pyx_kp_s_132));
   PyTuple_SET_ITEM(__pyx_t_18, 0, ((PyObject *)__pyx_kp_s_132));
@@ -52778,7 +52950,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
   PyTuple_SET_ITEM(__pyx_t_18, 1, __pyx_t_15);
   __Pyx_GIVEREF(__pyx_t_15);
   __pyx_t_15 = 0;
-  __pyx_t_15 = PyObject_Call(__pyx_t_16, ((PyObject *)__pyx_t_18), NULL); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1217; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_15 = PyObject_Call(__pyx_t_16, ((PyObject *)__pyx_t_18), NULL); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1220; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_15);
   __Pyx_DECREF(__pyx_t_16); __pyx_t_16 = 0;
   __Pyx_DECREF(((PyObject *)__pyx_t_18)); __pyx_t_18 = 0;
@@ -52806,7 +52978,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_24generator4(
   return NULL;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1220
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1223
  * 
  * 
  *     cdef int find_fixpoint(self,             # <<<<<<<<<<<<<<
@@ -52836,7 +53008,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("find_fixpoint", 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1235
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1238
  *         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             # <<<<<<<<<<<<<<
@@ -52845,7 +53017,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
  */
   (__pyx_v_e_low[0]) = __pyx_v_e_in_low;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1236
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1239
  * 
  *         e_low[0] = e_in_low
  *         e_high[0] = e_in_high             # <<<<<<<<<<<<<<
@@ -52854,19 +53026,19 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
  */
   (__pyx_v_e_high[0]) = __pyx_v_e_in_high;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1237
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1240
  *         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 = 1237; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_t_2 = ((struct __pyx_vtabstruct_4cdec_2sa_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 = 1237; __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 = 1240; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = ((struct __pyx_vtabstruct_4cdec_2sa_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 = 1240; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1238
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1241
  *         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:             # <<<<<<<<<<<<<<
@@ -52876,7 +53048,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
   __pyx_t_3 = (((__pyx_v_e_low[0]) == -1) != 0);
   if (__pyx_t_3) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1244
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1247
  *             # rule X -> X_1 w X_2 / X_1 X_2.    This is probably
  *             # not worth the bother, though.
  *             return 0             # <<<<<<<<<<<<<<
@@ -52888,7 +53060,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
     goto __pyx_L3;
   }
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1245
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1248
  *             # not worth the bother, though.
  *             return 0
  *         elif e_in_low != -1 and e_low[0] != e_in_low:             # <<<<<<<<<<<<<<
@@ -52904,7 +53076,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
   }
   if (__pyx_t_5) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1246
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1249
  *             return 0
  *         elif e_in_low != -1 and e_low[0] != e_in_low:
  *             if e_in_low - e_low[0] < min_ex_size:             # <<<<<<<<<<<<<<
@@ -52914,7 +53086,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
     __pyx_t_5 = (((__pyx_v_e_in_low - (__pyx_v_e_low[0])) < __pyx_v_min_ex_size) != 0);
     if (__pyx_t_5) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1247
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1250
  *         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             # <<<<<<<<<<<<<<
@@ -52923,7 +53095,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
  */
       (__pyx_v_e_low[0]) = (__pyx_v_e_in_low - __pyx_v_min_ex_size);
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1248
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1251
  *             if e_in_low - e_low[0] < min_ex_size:
  *                 e_low[0] = e_in_low - min_ex_size
  *                 if e_low[0] < 0:             # <<<<<<<<<<<<<<
@@ -52933,7 +53105,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
       __pyx_t_5 = (((__pyx_v_e_low[0]) < 0) != 0);
       if (__pyx_t_5) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1249
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1252
  *                 e_low[0] = e_in_low - min_ex_size
  *                 if e_low[0] < 0:
  *                     return 0             # <<<<<<<<<<<<<<
@@ -52952,7 +53124,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
   }
   __pyx_L3:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1251
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1254
  *                     return 0
  * 
  *         if e_high[0] - e_low[0] > max_e_len:             # <<<<<<<<<<<<<<
@@ -52962,7 +53134,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
   __pyx_t_5 = ((((__pyx_v_e_high[0]) - (__pyx_v_e_low[0])) > __pyx_v_max_e_len) != 0);
   if (__pyx_t_5) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1252
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1255
  * 
  *         if e_high[0] - e_low[0] > max_e_len:
  *             return 0             # <<<<<<<<<<<<<<
@@ -52974,7 +53146,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
     goto __pyx_L6;
   }
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1253
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1256
  *         if e_high[0] - e_low[0] > max_e_len:
  *             return 0
  *         elif e_in_high != -1 and e_high[0] != e_in_high:             # <<<<<<<<<<<<<<
@@ -52990,7 +53162,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
   }
   if (__pyx_t_4) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1254
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1257
  *             return 0
  *         elif e_in_high != -1 and e_high[0] != e_in_high:
  *             if e_high[0] - e_in_high < min_ex_size:             # <<<<<<<<<<<<<<
@@ -53000,7 +53172,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
     __pyx_t_4 = ((((__pyx_v_e_high[0]) - __pyx_v_e_in_high) < __pyx_v_min_ex_size) != 0);
     if (__pyx_t_4) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1255
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1258
  *         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             # <<<<<<<<<<<<<<
@@ -53009,7 +53181,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
  */
       (__pyx_v_e_high[0]) = (__pyx_v_e_in_high + __pyx_v_min_ex_size);
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1256
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1259
  *             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:             # <<<<<<<<<<<<<<
@@ -53019,7 +53191,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
       __pyx_t_4 = (((__pyx_v_e_high[0]) > __pyx_v_e_sent_len) != 0);
       if (__pyx_t_4) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1257
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1260
  *                 e_high[0] = e_in_high + min_ex_size
  *                 if e_high[0] > e_sent_len:
  *                     return 0             # <<<<<<<<<<<<<<
@@ -53038,7 +53210,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
   }
   __pyx_L6:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1259
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1262
  *                     return 0
  * 
  *         f_back_low[0] = -1             # <<<<<<<<<<<<<<
@@ -53047,7 +53219,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
  */
   (__pyx_v_f_back_low[0]) = -1;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1260
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1263
  * 
  *         f_back_low[0] = -1
  *         f_back_high[0] = -1             # <<<<<<<<<<<<<<
@@ -53056,7 +53228,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
  */
   (__pyx_v_f_back_high[0]) = -1;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1261
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1264
  *         f_back_low[0] = -1
  *         f_back_high[0] = -1
  *         f_low_prev = f_low             # <<<<<<<<<<<<<<
@@ -53065,17 +53237,17 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
  */
   __pyx_v_f_low_prev = __pyx_v_f_low;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1262
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1265
  *         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 = 1262; __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 = 1265; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_v_f_high_prev = __pyx_t_1;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1263
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1266
  *         f_low_prev = f_low
  *         f_high_prev = f_high
  *         new_x = 0             # <<<<<<<<<<<<<<
@@ -53084,7 +53256,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
  */
   __pyx_v_new_x = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1264
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1267
  *         f_high_prev = f_high
  *         new_x = 0
  *         new_low_x = 0             # <<<<<<<<<<<<<<
@@ -53093,7 +53265,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
  */
   __pyx_v_new_low_x = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1265
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1268
  *         new_x = 0
  *         new_low_x = 0
  *         new_high_x = 0             # <<<<<<<<<<<<<<
@@ -53102,7 +53274,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
  */
   __pyx_v_new_high_x = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1267
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1270
  *         new_high_x = 0
  * 
  *         while True:             # <<<<<<<<<<<<<<
@@ -53112,7 +53284,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
   while (1) {
     if (!1) break;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1269
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1272
  *         while True:
  * 
  *             if f_back_low[0] == -1:             # <<<<<<<<<<<<<<
@@ -53122,45 +53294,45 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
     __pyx_t_4 = (((__pyx_v_f_back_low[0]) == -1) != 0);
     if (__pyx_t_4) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1270
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1273
  * 
  *             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_4cdec_2sa_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 = 1270; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = ((struct __pyx_vtabstruct_4cdec_2sa_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 = 1273; __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*/ {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1272
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1275
  *                 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_4cdec_2sa_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 = 1272; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = ((struct __pyx_vtabstruct_4cdec_2sa_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 = 1275; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1273
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1276
  *             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_4cdec_2sa_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 = 1273; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = ((struct __pyx_vtabstruct_4cdec_2sa_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 = 1276; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     }
     __pyx_L11:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1275
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1278
  *                 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:             # <<<<<<<<<<<<<<
@@ -53170,7 +53342,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
     __pyx_t_4 = (((__pyx_v_f_back_low[0]) > __pyx_v_f_low) != 0);
     if (__pyx_t_4) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1276
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1279
  * 
  *             if f_back_low[0] > f_low:
  *                 f_back_low[0] = f_low             # <<<<<<<<<<<<<<
@@ -53182,35 +53354,35 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
     }
     __pyx_L12:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1278
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1281
  *                 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 = 1278; __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 = 1281; __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); __Pyx_XGOTREF(__pyx_t_6); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1278; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = PyObject_RichCompare(__pyx_t_2, __pyx_v_f_high, Py_LT); __Pyx_XGOTREF(__pyx_t_6); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1281; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __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 = 1278; __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 = 1281; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
     if (__pyx_t_4) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1279
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1282
  * 
  *             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 = 1279; __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 = 1282; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       (__pyx_v_f_back_high[0]) = __pyx_t_1;
       goto __pyx_L13;
     }
     __pyx_L13:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1281
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1284
  *                 f_back_high[0] = f_high
  * 
  *             if f_back_low[0] == f_low_prev and f_back_high[0] == f_high_prev:             # <<<<<<<<<<<<<<
@@ -53226,7 +53398,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
     }
     if (__pyx_t_3) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1282
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1285
  * 
  *             if f_back_low[0] == f_low_prev and f_back_high[0] == f_high_prev:
  *                 return 1             # <<<<<<<<<<<<<<
@@ -53239,7 +53411,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
     }
     __pyx_L14:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1284
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1287
  *                 return 1
  * 
  *             if allow_low_x == 0 and f_back_low[0] < f_low:             # <<<<<<<<<<<<<<
@@ -53255,7 +53427,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
     }
     if (__pyx_t_5) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1286
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1289
  *             if allow_low_x == 0 and f_back_low[0] < f_low:
  *                 # FAIL: f phrase is not tight
  *                 return 0             # <<<<<<<<<<<<<<
@@ -53268,7 +53440,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
     }
     __pyx_L15:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1288
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1291
  *                 return 0
  * 
  *             if f_back_high[0] - f_back_low[0] > max_f_len:             # <<<<<<<<<<<<<<
@@ -53278,7 +53450,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
     __pyx_t_5 = ((((__pyx_v_f_back_high[0]) - (__pyx_v_f_back_low[0])) > __pyx_v_max_f_len) != 0);
     if (__pyx_t_5) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1290
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1293
  *             if f_back_high[0] - f_back_low[0] > max_f_len:
  *                 # FAIL: f back projection is too wide
  *                 return 0             # <<<<<<<<<<<<<<
@@ -53291,7 +53463,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
     }
     __pyx_L16:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1292
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1295
  *                 return 0
  * 
  *             if allow_high_x == 0 and f_back_high[0] > f_high:             # <<<<<<<<<<<<<<
@@ -53300,11 +53472,11 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
  */
     __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 = 1292; __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 = 1295; __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); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1292; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyObject_RichCompare(__pyx_t_6, __pyx_v_f_high, Py_GT); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1295; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __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 = 1292; __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 = 1295; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       __pyx_t_4 = __pyx_t_3;
     } else {
@@ -53312,7 +53484,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
     }
     if (__pyx_t_4) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1294
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1297
  *             if allow_high_x == 0 and f_back_high[0] > f_high:
  *                 # FAIL: extension on high side not allowed
  *                 return 0             # <<<<<<<<<<<<<<
@@ -53325,7 +53497,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
     }
     __pyx_L17:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1296
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1299
  *                 return 0
  * 
  *             if f_low != f_back_low[0]:             # <<<<<<<<<<<<<<
@@ -53335,7 +53507,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
     __pyx_t_4 = ((__pyx_v_f_low != (__pyx_v_f_back_low[0])) != 0);
     if (__pyx_t_4) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1297
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1300
  * 
  *             if f_low != f_back_low[0]:
  *                 if new_low_x == 0:             # <<<<<<<<<<<<<<
@@ -53345,7 +53517,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
       __pyx_t_4 = ((__pyx_v_new_low_x == 0) != 0);
       if (__pyx_t_4) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1298
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1301
  *             if f_low != f_back_low[0]:
  *                 if new_low_x == 0:
  *                     if new_x >= max_new_x:             # <<<<<<<<<<<<<<
@@ -53355,7 +53527,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
         __pyx_t_4 = ((__pyx_v_new_x >= __pyx_v_max_new_x) != 0);
         if (__pyx_t_4) {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1300
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1303
  *                     if new_x >= max_new_x:
  *                         # FAIL: extension required on low side violates max # of gaps
  *                         return 0             # <<<<<<<<<<<<<<
@@ -53368,7 +53540,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
         }
         /*else*/ {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1302
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1305
  *                         return 0
  *                     else:
  *                         new_x = new_x + 1             # <<<<<<<<<<<<<<
@@ -53377,7 +53549,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
  */
           __pyx_v_new_x = (__pyx_v_new_x + 1);
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1303
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1306
  *                     else:
  *                         new_x = new_x + 1
  *                         new_low_x = 1             # <<<<<<<<<<<<<<
@@ -53391,7 +53563,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
       }
       __pyx_L19:;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1304
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1307
  *                         new_x = new_x + 1
  *                         new_low_x = 1
  *                 if f_low - f_back_low[0] < min_fx_size:             # <<<<<<<<<<<<<<
@@ -53401,7 +53573,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
       __pyx_t_4 = (((__pyx_v_f_low - (__pyx_v_f_back_low[0])) < __pyx_v_min_fx_size) != 0);
       if (__pyx_t_4) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1305
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1308
  *                         new_low_x = 1
  *                 if f_low - f_back_low[0] < min_fx_size:
  *                     f_back_low[0] = f_low - min_fx_size             # <<<<<<<<<<<<<<
@@ -53410,7 +53582,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
  */
         (__pyx_v_f_back_low[0]) = (__pyx_v_f_low - __pyx_v_min_fx_size);
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1306
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1309
  *                 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:             # <<<<<<<<<<<<<<
@@ -53420,7 +53592,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
         __pyx_t_4 = ((((__pyx_v_f_back_high[0]) - (__pyx_v_f_back_low[0])) > __pyx_v_max_f_len) != 0);
         if (__pyx_t_4) {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1308
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1311
  *                     if f_back_high[0] - f_back_low[0] > max_f_len:
  *                         # FAIL: extension required on low side violates max initial length
  *                         return 0             # <<<<<<<<<<<<<<
@@ -53433,7 +53605,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
         }
         __pyx_L22:;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1309
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1312
  *                         # FAIL: extension required on low side violates max initial length
  *                         return 0
  *                     if f_back_low[0] < 0:             # <<<<<<<<<<<<<<
@@ -53443,7 +53615,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
         __pyx_t_4 = (((__pyx_v_f_back_low[0]) < 0) != 0);
         if (__pyx_t_4) {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1311
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1314
  *                     if f_back_low[0] < 0:
  *                         # FAIL: extension required on low side violates sentence boundary
  *                         return 0             # <<<<<<<<<<<<<<
@@ -53462,22 +53634,22 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
     }
     __pyx_L18:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1313
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1316
  *                         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 = 1313; __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 = 1316; __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); __Pyx_XGOTREF(__pyx_t_6); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1313; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = PyObject_RichCompare(__pyx_v_f_high, __pyx_t_2, Py_NE); __Pyx_XGOTREF(__pyx_t_6); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1316; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __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 = 1313; __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 = 1316; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
     if (__pyx_t_4) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1314
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1317
  * 
  *             if f_high != f_back_high[0]:
  *                 if new_high_x == 0:             # <<<<<<<<<<<<<<
@@ -53487,7 +53659,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
       __pyx_t_4 = ((__pyx_v_new_high_x == 0) != 0);
       if (__pyx_t_4) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1315
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1318
  *             if f_high != f_back_high[0]:
  *                 if new_high_x == 0:
  *                     if new_x >= max_new_x:             # <<<<<<<<<<<<<<
@@ -53497,7 +53669,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
         __pyx_t_4 = ((__pyx_v_new_x >= __pyx_v_max_new_x) != 0);
         if (__pyx_t_4) {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1317
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1320
  *                     if new_x >= max_new_x:
  *                         # FAIL: extension required on high side violates max # of gaps
  *                         return 0             # <<<<<<<<<<<<<<
@@ -53510,7 +53682,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
         }
         /*else*/ {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1319
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1322
  *                         return 0
  *                     else:
  *                         new_x = new_x + 1             # <<<<<<<<<<<<<<
@@ -53519,7 +53691,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
  */
           __pyx_v_new_x = (__pyx_v_new_x + 1);
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1320
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1323
  *                     else:
  *                         new_x = new_x + 1
  *                         new_high_x = 1             # <<<<<<<<<<<<<<
@@ -53533,44 +53705,44 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
       }
       __pyx_L25:;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1321
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1324
  *                         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 = 1321; __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 = 1324; __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 = 1321; __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 = 1324; __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 = 1321; __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 = 1324; __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); __Pyx_XGOTREF(__pyx_t_7); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1321; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_7 = PyObject_RichCompare(__pyx_t_2, __pyx_t_6, Py_LT); __Pyx_XGOTREF(__pyx_t_7); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1324; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __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 = 1321; __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 = 1324; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
       if (__pyx_t_4) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1322
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1325
  *                         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 = 1322; __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 = 1325; __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 = 1322; __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 = 1325; __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 = 1322; __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 = 1325; __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;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1323
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1326
  *                 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:             # <<<<<<<<<<<<<<
@@ -53580,7 +53752,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
         __pyx_t_4 = ((((__pyx_v_f_back_high[0]) - (__pyx_v_f_back_low[0])) > __pyx_v_max_f_len) != 0);
         if (__pyx_t_4) {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1325
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1328
  *                     if f_back_high[0] - f_back_low[0] > max_f_len:
  *                         # FAIL: extension required on high side violates max initial length
  *                         return 0             # <<<<<<<<<<<<<<
@@ -53593,7 +53765,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
         }
         __pyx_L28:;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1326
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1329
  *                         # FAIL: extension required on high side violates max initial length
  *                         return 0
  *                     if f_back_high[0] > f_sent_len:             # <<<<<<<<<<<<<<
@@ -53603,7 +53775,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
         __pyx_t_4 = (((__pyx_v_f_back_high[0]) > __pyx_v_f_sent_len) != 0);
         if (__pyx_t_4) {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1328
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1331
  *                     if f_back_high[0] > f_sent_len:
  *                         # FAIL: extension required on high side violates sentence boundary
  *                         return 0             # <<<<<<<<<<<<<<
@@ -53622,7 +53794,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
     }
     __pyx_L24:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1330
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1333
  *                         return 0
  * 
  *             e_low_prev = e_low[0]             # <<<<<<<<<<<<<<
@@ -53631,7 +53803,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
  */
     __pyx_v_e_low_prev = (__pyx_v_e_low[0]);
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1331
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1334
  * 
  *             e_low_prev = e_low[0]
  *             e_high_prev = e_high[0]             # <<<<<<<<<<<<<<
@@ -53640,29 +53812,29 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
  */
     __pyx_v_e_high_prev = (__pyx_v_e_high[0]);
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1333
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1336
  *             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_4cdec_2sa_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 = 1333; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = ((struct __pyx_vtabstruct_4cdec_2sa_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 = 1336; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1334
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1337
  * 
  *             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_4cdec_2sa_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 = 1334; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = ((struct __pyx_vtabstruct_4cdec_2sa_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 = 1337; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1335
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1338
  *             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:             # <<<<<<<<<<<<<<
@@ -53678,7 +53850,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
     }
     if (__pyx_t_3) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1336
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1339
  *             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             # <<<<<<<<<<<<<<
@@ -53691,7 +53863,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
     }
     __pyx_L30:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1337
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1340
  *             if e_low[0] == e_low_prev and e_high[0] == e_high_prev:
  *                 return 1
  *             if allow_arbitrary_x == 0:             # <<<<<<<<<<<<<<
@@ -53701,7 +53873,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
     __pyx_t_3 = ((__pyx_v_allow_arbitrary_x == 0) != 0);
     if (__pyx_t_3) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1339
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1342
  *             if allow_arbitrary_x == 0:
  *                 # FAIL: arbitrary expansion not permitted
  *                 return 0             # <<<<<<<<<<<<<<
@@ -53714,7 +53886,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
     }
     __pyx_L31:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1340
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1343
  *                 # FAIL: arbitrary expansion not permitted
  *                 return 0
  *             if e_high[0] - e_low[0] > max_e_len:             # <<<<<<<<<<<<<<
@@ -53724,7 +53896,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
     __pyx_t_3 = ((((__pyx_v_e_high[0]) - (__pyx_v_e_low[0])) > __pyx_v_max_e_len) != 0);
     if (__pyx_t_3) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1342
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1345
  *             if e_high[0] - e_low[0] > max_e_len:
  *                 # FAIL: re-projection violates sentence max phrase length
  *                 return 0             # <<<<<<<<<<<<<<
@@ -53737,7 +53909,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
     }
     __pyx_L32:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1343
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1346
  *                 # FAIL: re-projection violates sentence max phrase length
  *                 return 0
  *             f_low_prev = f_back_low[0]             # <<<<<<<<<<<<<<
@@ -53746,7 +53918,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
  */
     __pyx_v_f_low_prev = (__pyx_v_f_back_low[0]);
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1344
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1347
  *                 return 0
  *             f_low_prev = f_back_low[0]
  *             f_high_prev = f_back_high[0]             # <<<<<<<<<<<<<<
@@ -53769,7 +53941,7 @@ static int __pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_fixpoint(struct
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1347
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1350
  * 
  * 
  *     cdef find_projection(self, int in_low, int in_high, int* in_links_low, int* in_links_high,             # <<<<<<<<<<<<<<
@@ -53787,7 +53959,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_projectio
   int __pyx_t_4;
   __Pyx_RefNannySetupContext("find_projection", 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1350
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1353
  *                         int* out_low, int* out_high):
  *         cdef int i
  *         for i from in_low <= i < in_high:             # <<<<<<<<<<<<<<
@@ -53797,7 +53969,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_projectio
   __pyx_t_1 = __pyx_v_in_high;
   for (__pyx_v_i = __pyx_v_in_low; __pyx_v_i < __pyx_t_1; __pyx_v_i++) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1351
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1354
  *         cdef int i
  *         for i from in_low <= i < in_high:
  *             if in_links_low[i] != -1:             # <<<<<<<<<<<<<<
@@ -53807,7 +53979,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_projectio
     __pyx_t_2 = (((__pyx_v_in_links_low[__pyx_v_i]) != -1) != 0);
     if (__pyx_t_2) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1352
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1355
  *         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]:             # <<<<<<<<<<<<<<
@@ -53823,7 +53995,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_projectio
       }
       if (__pyx_t_4) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1353
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1356
  *             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]             # <<<<<<<<<<<<<<
@@ -53835,7 +54007,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_projectio
       }
       __pyx_L6:;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1354
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1357
  *                 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]:             # <<<<<<<<<<<<<<
@@ -53851,7 +54023,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_projectio
       }
       if (__pyx_t_3) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1355
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1358
  *                     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]             # <<<<<<<<<<<<<<
@@ -53873,7 +54045,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_find_projectio
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1358
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1361
  * 
  * 
  *     cdef int* int_arr_extend(self, int* arr, int* arr_len, int* data, int data_len):             # <<<<<<<<<<<<<<
@@ -53887,7 +54059,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_int_arr_extend(CYTH
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("int_arr_extend", 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1360
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1363
  *     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             # <<<<<<<<<<<<<<
@@ -53896,7 +54068,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_int_arr_extend(CYTH
  */
   __pyx_v_new_len = ((__pyx_v_arr_len[0]) + __pyx_v_data_len);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1361
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1364
  *         cdef int new_len
  *         new_len = arr_len[0] + data_len
  *         arr = <int*> realloc(arr, new_len*sizeof(int))             # <<<<<<<<<<<<<<
@@ -53905,7 +54077,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_int_arr_extend(CYTH
  */
   __pyx_v_arr = ((int *)realloc(__pyx_v_arr, (__pyx_v_new_len * (sizeof(int)))));
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1362
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1365
  *         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))             # <<<<<<<<<<<<<<
@@ -53914,7 +54086,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_int_arr_extend(CYTH
  */
   memcpy((__pyx_v_arr + (__pyx_v_arr_len[0])), __pyx_v_data, (__pyx_v_data_len * (sizeof(int))));
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1363
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1366
  *         arr = <int*> realloc(arr, new_len*sizeof(int))
  *         memcpy(arr+arr_len[0], data, data_len*sizeof(int))
  *         arr_len[0] = new_len             # <<<<<<<<<<<<<<
@@ -53923,7 +54095,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_int_arr_extend(CYTH
  */
   (__pyx_v_arr_len[0]) = __pyx_v_new_len;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1364
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1367
  *         memcpy(arr+arr_len[0], data, data_len*sizeof(int))
  *         arr_len[0] = new_len
  *         return arr             # <<<<<<<<<<<<<<
@@ -53939,7 +54111,7 @@ static int *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_int_arr_extend(CYTH
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1367
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1370
  * 
  * 
  *     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,             # <<<<<<<<<<<<<<
@@ -53984,19 +54156,19 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("extract_phrases", 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1375
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1378
  *         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 = 1375; __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 = 1378; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_v_result = ((PyObject *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1376
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1379
  * 
  *         result = []
  *         len1 = 0             # <<<<<<<<<<<<<<
@@ -54005,7 +54177,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
  */
   __pyx_v_len1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1377
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1380
  *         result = []
  *         len1 = 0
  *         e_gaps1 = <int*> malloc(0)             # <<<<<<<<<<<<<<
@@ -54014,19 +54186,19 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
  */
   __pyx_v_e_gaps1 = ((int *)malloc(0));
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1378
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1381
  *         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_4cdec_2sa_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_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), NULL); 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_v_ephr_arr = ((struct __pyx_obj_4cdec_2sa_3_sa_IntList *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1380
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1383
  *         ephr_arr = IntList()
  * 
  *         e_gap_order = <int*> malloc(num_gaps*sizeof(int))             # <<<<<<<<<<<<<<
@@ -54035,7 +54207,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
  */
   __pyx_v_e_gap_order = ((int *)malloc((__pyx_v_num_gaps * (sizeof(int)))));
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1381
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1384
  * 
  *         e_gap_order = <int*> malloc(num_gaps*sizeof(int))
  *         if num_gaps > 0:             # <<<<<<<<<<<<<<
@@ -54045,7 +54217,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
   __pyx_t_2 = ((__pyx_v_num_gaps > 0) != 0);
   if (__pyx_t_2) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1382
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1385
  *         e_gap_order = <int*> malloc(num_gaps*sizeof(int))
  *         if num_gaps > 0:
  *             e_gap_order[0] = 0             # <<<<<<<<<<<<<<
@@ -54054,7 +54226,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
  */
     (__pyx_v_e_gap_order[0]) = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1383
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1386
  *         if num_gaps > 0:
  *             e_gap_order[0] = 0
  *             for i from 1 <= i < num_gaps:             # <<<<<<<<<<<<<<
@@ -54064,7 +54236,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
     __pyx_t_3 = __pyx_v_num_gaps;
     for (__pyx_v_i = 1; __pyx_v_i < __pyx_t_3; __pyx_v_i++) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1384
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1387
  *             e_gap_order[0] = 0
  *             for i from 1 <= i < num_gaps:
  *                 for j from 0 <= j < i:             # <<<<<<<<<<<<<<
@@ -54074,7 +54246,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
       __pyx_t_4 = __pyx_v_i;
       for (__pyx_v_j = 0; __pyx_v_j < __pyx_t_4; __pyx_v_j++) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1385
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1388
  *             for i from 1 <= i < num_gaps:
  *                 for j from 0 <= j < i:
  *                     if e_gap_low[i] < e_gap_low[j]:             # <<<<<<<<<<<<<<
@@ -54084,7 +54256,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
         __pyx_t_2 = (((__pyx_v_e_gap_low[__pyx_v_i]) < (__pyx_v_e_gap_low[__pyx_v_j])) != 0);
         if (__pyx_t_2) {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1386
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1389
  *                 for j from 0 <= j < i:
  *                     if e_gap_low[i] < e_gap_low[j]:
  *                         for k from j <= k < i:             # <<<<<<<<<<<<<<
@@ -54094,7 +54266,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
           __pyx_t_5 = __pyx_v_i;
           for (__pyx_v_k = __pyx_v_j; __pyx_v_k < __pyx_t_5; __pyx_v_k++) {
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1387
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1390
  *                     if e_gap_low[i] < e_gap_low[j]:
  *                         for k from j <= k < i:
  *                             e_gap_order[k+1] = e_gap_order[k]             # <<<<<<<<<<<<<<
@@ -54104,7 +54276,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
             (__pyx_v_e_gap_order[(__pyx_v_k + 1)]) = (__pyx_v_e_gap_order[__pyx_v_k]);
           }
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1388
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1391
  *                         for k from j <= k < i:
  *                             e_gap_order[k+1] = e_gap_order[k]
  *                         e_gap_order[j] = i             # <<<<<<<<<<<<<<
@@ -54113,7 +54285,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
  */
           (__pyx_v_e_gap_order[__pyx_v_j]) = __pyx_v_i;
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1389
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1392
  *                             e_gap_order[k+1] = e_gap_order[k]
  *                         e_gap_order[j] = i
  *                         break             # <<<<<<<<<<<<<<
@@ -54127,7 +54299,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
       }
       /*else*/ {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1391
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1394
  *                         break
  *                 else:
  *                     e_gap_order[i] = i             # <<<<<<<<<<<<<<
@@ -54142,7 +54314,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
   }
   __pyx_L3:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1393
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1396
  *                     e_gap_order[i] = i
  * 
  *         e_x_low = e_low             # <<<<<<<<<<<<<<
@@ -54151,7 +54323,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
  */
   __pyx_v_e_x_low = __pyx_v_e_low;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1394
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1397
  * 
  *         e_x_low = e_low
  *         e_x_high = e_high             # <<<<<<<<<<<<<<
@@ -54160,7 +54332,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
  */
   __pyx_v_e_x_high = __pyx_v_e_high;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1395
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1398
  *         e_x_low = e_low
  *         e_x_high = e_high
  *         if not self.tight_phrases:             # <<<<<<<<<<<<<<
@@ -54170,7 +54342,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
   __pyx_t_2 = ((!(__pyx_v_self->tight_phrases != 0)) != 0);
   if (__pyx_t_2) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1396
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1399
  *         e_x_high = e_high
  *         if not self.tight_phrases:
  *             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:             # <<<<<<<<<<<<<<
@@ -54193,7 +54365,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
       }
       if (!__pyx_t_6) break;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1397
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1400
  *         if not self.tight_phrases:
  *             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             # <<<<<<<<<<<<<<
@@ -54203,7 +54375,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
       __pyx_v_e_x_low = (__pyx_v_e_x_low - 1);
     }
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1398
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1401
  *             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:             # <<<<<<<<<<<<<<
@@ -54226,7 +54398,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
       }
       if (!__pyx_t_2) break;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1399
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1402
  *                 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             # <<<<<<<<<<<<<<
@@ -54239,7 +54411,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
   }
   __pyx_L11:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1401
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1404
  *                 e_x_high = e_x_high + 1
  * 
  *         for i from e_x_low <= i <= e_low:             # <<<<<<<<<<<<<<
@@ -54249,7 +54421,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
   __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++) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1402
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1405
  * 
  *         for i from e_x_low <= i <= e_low:
  *             e_gaps1 = self.int_arr_extend(e_gaps1, &len1, &i, 1)             # <<<<<<<<<<<<<<
@@ -54259,7 +54431,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
     __pyx_v_e_gaps1 = ((struct __pyx_vtabstruct_4cdec_2sa_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);
   }
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1404
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1407
  *             e_gaps1 = self.int_arr_extend(e_gaps1, &len1, &i, 1)
  * 
  *         for i from 0 <= i < num_gaps:             # <<<<<<<<<<<<<<
@@ -54269,7 +54441,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
   __pyx_t_3 = __pyx_v_num_gaps;
   for (__pyx_v_i = 0; __pyx_v_i < __pyx_t_3; __pyx_v_i++) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1405
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1408
  * 
  *         for i from 0 <= i < num_gaps:
  *             e_gaps2 = <int*> malloc(0)             # <<<<<<<<<<<<<<
@@ -54278,7 +54450,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
  */
     __pyx_v_e_gaps2 = ((int *)malloc(0));
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1406
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1409
  *         for i from 0 <= i < num_gaps:
  *             e_gaps2 = <int*> malloc(0)
  *             len2 = 0             # <<<<<<<<<<<<<<
@@ -54287,7 +54459,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
  */
     __pyx_v_len2 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1408
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1411
  *             len2 = 0
  * 
  *             j = e_gap_order[i]             # <<<<<<<<<<<<<<
@@ -54296,7 +54468,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
  */
     __pyx_v_j = (__pyx_v_e_gap_order[__pyx_v_i]);
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1409
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1412
  * 
  *             j = e_gap_order[i]
  *             e_x_gap_low = e_gap_low[j]             # <<<<<<<<<<<<<<
@@ -54305,7 +54477,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
  */
     __pyx_v_e_x_gap_low = (__pyx_v_e_gap_low[__pyx_v_j]);
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1410
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1413
  *             j = e_gap_order[i]
  *             e_x_gap_low = e_gap_low[j]
  *             e_x_gap_high = e_gap_high[j]             # <<<<<<<<<<<<<<
@@ -54314,7 +54486,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
  */
     __pyx_v_e_x_gap_high = (__pyx_v_e_gap_high[__pyx_v_j]);
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1411
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1414
  *             e_x_gap_low = e_gap_low[j]
  *             e_x_gap_high = e_gap_high[j]
  *             if not self.tight_phrases:             # <<<<<<<<<<<<<<
@@ -54324,7 +54496,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
     __pyx_t_2 = ((!(__pyx_v_self->tight_phrases != 0)) != 0);
     if (__pyx_t_2) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1412
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1415
  *             e_x_gap_high = e_gap_high[j]
  *             if not self.tight_phrases:
  *                 while e_x_gap_low > e_x_low and e_links_low[e_x_gap_low-1] == -1:             # <<<<<<<<<<<<<<
@@ -54341,7 +54513,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
         }
         if (!__pyx_t_7) break;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1413
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1416
  *             if not self.tight_phrases:
  *                 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             # <<<<<<<<<<<<<<
@@ -54351,7 +54523,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
         __pyx_v_e_x_gap_low = (__pyx_v_e_x_gap_low - 1);
       }
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1414
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1417
  *                 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:             # <<<<<<<<<<<<<<
@@ -54368,7 +54540,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
         }
         if (!__pyx_t_6) break;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1415
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1418
  *                     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             # <<<<<<<<<<<<<<
@@ -54381,7 +54553,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
     }
     __pyx_L20:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1417
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1420
  *                     e_x_gap_high = e_x_gap_high + 1
  * 
  *             k = 0             # <<<<<<<<<<<<<<
@@ -54390,7 +54562,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
  */
     __pyx_v_k = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1418
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1421
  * 
  *             k = 0
  *             step = 1+(i*2)             # <<<<<<<<<<<<<<
@@ -54399,7 +54571,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
  */
     __pyx_v_step = (1 + (__pyx_v_i * 2));
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1419
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1422
  *             k = 0
  *             step = 1+(i*2)
  *             while k < len1:             # <<<<<<<<<<<<<<
@@ -54410,7 +54582,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
       __pyx_t_6 = ((__pyx_v_k < __pyx_v_len1) != 0);
       if (!__pyx_t_6) break;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1420
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1423
  *             step = 1+(i*2)
  *             while k < len1:
  *                 for m from e_x_gap_low <= m <= e_gap_low[j]:             # <<<<<<<<<<<<<<
@@ -54420,7 +54592,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
       __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++) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1421
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1424
  *             while k < len1:
  *                 for m from e_x_gap_low <= m <= e_gap_low[j]:
  *                     if m >= e_gaps1[k+step-1]:             # <<<<<<<<<<<<<<
@@ -54430,7 +54602,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
         __pyx_t_6 = ((__pyx_v_m >= (__pyx_v_e_gaps1[((__pyx_v_k + __pyx_v_step) - 1)])) != 0);
         if (__pyx_t_6) {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1422
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1425
  *                 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:             # <<<<<<<<<<<<<<
@@ -54440,7 +54612,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
           __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++) {
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1423
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1426
  *                     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             # <<<<<<<<<<<<<<
@@ -54450,7 +54622,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
             __pyx_t_6 = (((__pyx_v_n - __pyx_v_m) >= 1) != 0);
             if (__pyx_t_6) {
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1424
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1427
  *                         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)             # <<<<<<<<<<<<<<
@@ -54459,7 +54631,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
  */
               __pyx_v_e_gaps2 = ((struct __pyx_vtabstruct_4cdec_2sa_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);
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1425
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1428
  *                             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)             # <<<<<<<<<<<<<<
@@ -54468,7 +54640,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
  */
               __pyx_v_e_gaps2 = ((struct __pyx_vtabstruct_4cdec_2sa_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);
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1426
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1429
  *                                 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)             # <<<<<<<<<<<<<<
@@ -54485,7 +54657,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
         __pyx_L29:;
       }
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1427
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1430
  *                                 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             # <<<<<<<<<<<<<<
@@ -54495,7 +54667,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
       __pyx_v_k = (__pyx_v_k + __pyx_v_step);
     }
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1428
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1431
  *                                 e_gaps2 = self.int_arr_extend(e_gaps2, &len2, &n, 1)
  *                 k = k + step
  *             free(e_gaps1)             # <<<<<<<<<<<<<<
@@ -54504,7 +54676,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
  */
     free(__pyx_v_e_gaps1);
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1429
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1432
  *                 k = k + step
  *             free(e_gaps1)
  *             e_gaps1 = e_gaps2             # <<<<<<<<<<<<<<
@@ -54513,7 +54685,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
  */
     __pyx_v_e_gaps1 = __pyx_v_e_gaps2;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1430
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1433
  *             free(e_gaps1)
  *             e_gaps1 = e_gaps2
  *             len1 = len2             # <<<<<<<<<<<<<<
@@ -54523,7 +54695,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
     __pyx_v_len1 = __pyx_v_len2;
   }
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1432
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1435
  *             len1 = len2
  * 
  *         step = 1+(num_gaps*2)             # <<<<<<<<<<<<<<
@@ -54532,7 +54704,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
  */
   __pyx_v_step = (1 + (__pyx_v_num_gaps * 2));
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1433
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1436
  * 
  *         step = 1+(num_gaps*2)
  *         e_gaps2 = <int*> malloc(0)             # <<<<<<<<<<<<<<
@@ -54541,7 +54713,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
  */
   __pyx_v_e_gaps2 = ((int *)malloc(0));
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1434
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1437
  *         step = 1+(num_gaps*2)
  *         e_gaps2 = <int*> malloc(0)
  *         len2 = 0             # <<<<<<<<<<<<<<
@@ -54550,7 +54722,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
  */
   __pyx_v_len2 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1435
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1438
  *         e_gaps2 = <int*> malloc(0)
  *         len2 = 0
  *         for i from e_high <= i <= e_x_high:             # <<<<<<<<<<<<<<
@@ -54560,7 +54732,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
   __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++) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1436
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1439
  *         len2 = 0
  *         for i from e_high <= i <= e_x_high:
  *             j = 0             # <<<<<<<<<<<<<<
@@ -54569,7 +54741,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
  */
     __pyx_v_j = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1437
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1440
  *         for i from e_high <= i <= e_x_high:
  *             j = 0
  *             while j < len1:             # <<<<<<<<<<<<<<
@@ -54580,7 +54752,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
       __pyx_t_6 = ((__pyx_v_j < __pyx_v_len1) != 0);
       if (!__pyx_t_6) break;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1438
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1441
  *             j = 0
  *             while j < len1:
  *                 if i - e_gaps1[j] <= self.train_max_initial_size and i >= e_gaps1[j+step-1]:             # <<<<<<<<<<<<<<
@@ -54596,7 +54768,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
       }
       if (__pyx_t_2) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1439
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1442
  *             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)             # <<<<<<<<<<<<<<
@@ -54605,7 +54777,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
  */
         __pyx_v_e_gaps2 = ((struct __pyx_vtabstruct_4cdec_2sa_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);
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1440
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1443
  *                 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)             # <<<<<<<<<<<<<<
@@ -54617,7 +54789,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
       }
       __pyx_L37:;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1441
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1444
  *                     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             # <<<<<<<<<<<<<<
@@ -54628,7 +54800,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
     }
   }
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1442
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1445
  *                     e_gaps2 = self.int_arr_extend(e_gaps2, &len2, &i, 1)
  *                 j = j + step
  *         free(e_gaps1)             # <<<<<<<<<<<<<<
@@ -54637,7 +54809,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
  */
   free(__pyx_v_e_gaps1);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1443
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1446
  *                 j = j + step
  *         free(e_gaps1)
  *         e_gaps1 = e_gaps2             # <<<<<<<<<<<<<<
@@ -54646,7 +54818,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
  */
   __pyx_v_e_gaps1 = __pyx_v_e_gaps2;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1444
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1447
  *         free(e_gaps1)
  *         e_gaps1 = e_gaps2
  *         len1 = len2             # <<<<<<<<<<<<<<
@@ -54655,7 +54827,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
  */
   __pyx_v_len1 = __pyx_v_len2;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1446
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1449
  *         len1 = len2
  * 
  *         step = (num_gaps+1)*2             # <<<<<<<<<<<<<<
@@ -54664,7 +54836,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
  */
   __pyx_v_step = ((__pyx_v_num_gaps + 1) * 2);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1447
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1450
  * 
  *         step = (num_gaps+1)*2
  *         i = 0             # <<<<<<<<<<<<<<
@@ -54673,7 +54845,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
  */
   __pyx_v_i = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1450
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1453
  * 
  *         cdef IntList indexes
  *         while i < len1:             # <<<<<<<<<<<<<<
@@ -54684,7 +54856,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
     __pyx_t_2 = ((__pyx_v_i < __pyx_v_len1) != 0);
     if (!__pyx_t_2) break;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1451
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1454
  *         cdef IntList indexes
  *         while i < len1:
  *             ephr_arr._clear()             # <<<<<<<<<<<<<<
@@ -54693,7 +54865,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
  */
     ((struct __pyx_vtabstruct_4cdec_2sa_3_sa_IntList *)__pyx_v_ephr_arr->__pyx_vtab)->_clear(__pyx_v_ephr_arr);
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1452
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1455
  *         while i < len1:
  *             ephr_arr._clear()
  *             num_chunks = 0             # <<<<<<<<<<<<<<
@@ -54702,19 +54874,19 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
  */
     __pyx_v_num_chunks = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1453
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1456
  *             ephr_arr._clear()
  *             num_chunks = 0
  *             indexes = IntList()             # <<<<<<<<<<<<<<
  *             for j from 0 <= j < num_gaps+1:
  *                 if e_gaps1[i+2*j] < e_gaps1[i+(2*j)+1]:
  */
-    __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1453; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1456; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_XDECREF_SET(__pyx_v_indexes, ((struct __pyx_obj_4cdec_2sa_3_sa_IntList *)__pyx_t_1));
     __pyx_t_1 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1454
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1457
  *             num_chunks = 0
  *             indexes = IntList()
  *             for j from 0 <= j < num_gaps+1:             # <<<<<<<<<<<<<<
@@ -54724,7 +54896,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
     __pyx_t_9 = (__pyx_v_num_gaps + 1);
     for (__pyx_v_j = 0; __pyx_v_j < __pyx_t_9; __pyx_v_j++) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1455
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1458
  *             indexes = IntList()
  *             for j from 0 <= j < num_gaps+1:
  *                 if e_gaps1[i+2*j] < e_gaps1[i+(2*j)+1]:             # <<<<<<<<<<<<<<
@@ -54734,7 +54906,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
       __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)])) != 0);
       if (__pyx_t_2) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1456
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1459
  *             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             # <<<<<<<<<<<<<<
@@ -54746,7 +54918,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
       }
       __pyx_L42:;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1457
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1460
  *                 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]:             # <<<<<<<<<<<<<<
@@ -54756,21 +54928,21 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
       __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++) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1458
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1461
  *                     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 = 1458; __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 = 1461; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_1);
-        __pyx_t_10 = __Pyx_PyObject_Append(((PyObject *)__pyx_v_indexes), __pyx_t_1); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1458; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_10 = __Pyx_PyObject_Append(((PyObject *)__pyx_v_indexes), __pyx_t_1); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1461; __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_10); __pyx_t_10 = 0;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1459
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1462
  *                 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]])             # <<<<<<<<<<<<<<
@@ -54778,14 +54950,14 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
  *                     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_10 = __Pyx_GetItemInt(((PyObject *)__pyx_v_self->eid2symid), __pyx_t_4, sizeof(int), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_10) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1459; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_10 = __Pyx_GetItemInt(((PyObject *)__pyx_v_self->eid2symid), __pyx_t_4, sizeof(int), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_10) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1462; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_10);
-        __pyx_t_4 = __Pyx_PyInt_AsInt(__pyx_t_10); if (unlikely((__pyx_t_4 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1459; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_4 = __Pyx_PyInt_AsInt(__pyx_t_10); if (unlikely((__pyx_t_4 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1462; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
         ((struct __pyx_vtabstruct_4cdec_2sa_3_sa_IntList *)__pyx_v_ephr_arr->__pyx_vtab)->_append(__pyx_v_ephr_arr, __pyx_t_4);
       }
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1460
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1463
  *                     indexes.append(k)
  *                     ephr_arr._append(self.eid2symid[self.eda.data.arr[e_sent_start+k]])
  *                 if j < num_gaps:             # <<<<<<<<<<<<<<
@@ -54795,21 +54967,21 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
       __pyx_t_2 = ((__pyx_v_j < __pyx_v_num_gaps) != 0);
       if (__pyx_t_2) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1461
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1464
  *                     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_10 = PyInt_FromLong(__pyx_f_4cdec_2sa_3_sa_sym_setindex(__pyx_v_self->category, ((__pyx_v_e_gap_order[__pyx_v_j]) + 1))); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1461; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_10 = PyInt_FromLong(__pyx_f_4cdec_2sa_3_sa_sym_setindex(__pyx_v_self->category, ((__pyx_v_e_gap_order[__pyx_v_j]) + 1))); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1464; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_10);
-        __pyx_t_1 = __Pyx_PyObject_Append(((PyObject *)__pyx_v_indexes), __pyx_t_10); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1461; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_1 = __Pyx_PyObject_Append(((PyObject *)__pyx_v_indexes), __pyx_t_10); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1464; __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_1); __pyx_t_1 = 0;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1462
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1465
  *                 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))             # <<<<<<<<<<<<<<
@@ -54822,7 +54994,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
       __pyx_L45:;
     }
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1463
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1466
  *                     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             # <<<<<<<<<<<<<<
@@ -54831,7 +55003,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
  */
     __pyx_v_i = (__pyx_v_i + __pyx_v_step);
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1464
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1467
  *                     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:             # <<<<<<<<<<<<<<
@@ -54847,22 +55019,22 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
     }
     if (__pyx_t_7) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1465
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1468
  *             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 = 1465; __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 = 1468; __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_10 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_Phrase)), ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1465; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_10 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_Phrase)), ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1468; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_10);
       __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 = 1465; __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 = 1468; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
       PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_t_10);
       __Pyx_GIVEREF(__pyx_t_10);
@@ -54870,7 +55042,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
       PyTuple_SET_ITEM(__pyx_t_1, 1, ((PyObject *)__pyx_v_indexes));
       __Pyx_GIVEREF(((PyObject *)__pyx_v_indexes));
       __pyx_t_10 = 0;
-      __pyx_t_10 = __Pyx_PyObject_Append(__pyx_v_result, ((PyObject *)__pyx_t_1)); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1465; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_10 = __Pyx_PyObject_Append(__pyx_v_result, ((PyObject *)__pyx_t_1)); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1468; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_10);
       __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
       __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
@@ -54879,7 +55051,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
     __pyx_L46:;
   }
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1467
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1470
  *                 result.append((Phrase(ephr_arr),indexes))
  * 
  *         free(e_gaps1)             # <<<<<<<<<<<<<<
@@ -54888,7 +55060,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
  */
   free(__pyx_v_e_gaps1);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1468
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1471
  * 
  *         free(e_gaps1)
  *         free(e_gap_order)             # <<<<<<<<<<<<<<
@@ -54897,7 +55069,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
  */
   free(__pyx_v_e_gap_order);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1469
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1472
  *         free(e_gaps1)
  *         free(e_gap_order)
  *         return result             # <<<<<<<<<<<<<<
@@ -54925,7 +55097,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrase
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1471
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1474
  *         return result
  * 
  *     cdef IntList create_alignments(self, int* sent_links, int num_links,             # <<<<<<<<<<<<<<
@@ -54953,19 +55125,19 @@ static struct __pyx_obj_4cdec_2sa_3_sa_IntList *__pyx_f_4cdec_2sa_3_sa_23HieroCa
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("create_alignments", 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1474
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1477
  *             IntList findexes, IntList eindexes):
  *         cdef unsigned i
  *         cdef IntList ret = IntList()             # <<<<<<<<<<<<<<
  *         for i in range(findexes.len):
  *             s = findexes.arr[i]
  */
-  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1474; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1477; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_v_ret = ((struct __pyx_obj_4cdec_2sa_3_sa_IntList *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1475
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1478
  *         cdef unsigned i
  *         cdef IntList ret = IntList()
  *         for i in range(findexes.len):             # <<<<<<<<<<<<<<
@@ -54976,7 +55148,7 @@ static struct __pyx_obj_4cdec_2sa_3_sa_IntList *__pyx_f_4cdec_2sa_3_sa_23HieroCa
   for (__pyx_t_3 = 0; __pyx_t_3 < __pyx_t_2; __pyx_t_3+=1) {
     __pyx_v_i = __pyx_t_3;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1476
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1479
  *         cdef IntList ret = IntList()
  *         for i in range(findexes.len):
  *             s = findexes.arr[i]             # <<<<<<<<<<<<<<
@@ -54985,7 +55157,7 @@ static struct __pyx_obj_4cdec_2sa_3_sa_IntList *__pyx_f_4cdec_2sa_3_sa_23HieroCa
  */
     __pyx_v_s = (__pyx_v_findexes->arr[__pyx_v_i]);
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1477
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1480
  *         for i in range(findexes.len):
  *             s = findexes.arr[i]
  *             if s < 0: continue             # <<<<<<<<<<<<<<
@@ -54999,7 +55171,7 @@ static struct __pyx_obj_4cdec_2sa_3_sa_IntList *__pyx_f_4cdec_2sa_3_sa_23HieroCa
     }
     __pyx_L5:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1478
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1481
  *             s = findexes.arr[i]
  *             if s < 0: continue
  *             idx = 0             # <<<<<<<<<<<<<<
@@ -55009,7 +55181,7 @@ static struct __pyx_obj_4cdec_2sa_3_sa_IntList *__pyx_f_4cdec_2sa_3_sa_23HieroCa
     __Pyx_INCREF(__pyx_int_0);
     __Pyx_XDECREF_SET(__pyx_v_idx, __pyx_int_0);
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1479
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1482
  *             if s < 0: continue
  *             idx = 0
  *             while idx < num_links * 2:             # <<<<<<<<<<<<<<
@@ -55017,65 +55189,65 @@ static struct __pyx_obj_4cdec_2sa_3_sa_IntList *__pyx_f_4cdec_2sa_3_sa_23HieroCa
  *                     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 = 1479; __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 = 1482; __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); __Pyx_XGOTREF(__pyx_t_5); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1479; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_5 = PyObject_RichCompare(__pyx_v_idx, __pyx_t_1, Py_LT); __Pyx_XGOTREF(__pyx_t_5); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1482; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __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 = 1479; __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 = 1482; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
       if (!__pyx_t_4) break;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1480
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1483
  *             idx = 0
  *             while idx < num_links * 2:
  *                 if sent_links[idx] == s:             # <<<<<<<<<<<<<<
  *                     j = eindexes.index(sent_links[idx+1])
  *                     ret.append(i * ALIGNMENT_CODE + 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 = 1480; __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 = 1483; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __pyx_t_4 = (((__pyx_v_sent_links[__pyx_t_6]) == __pyx_v_s) != 0);
       if (__pyx_t_4) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1481
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1484
  *             while idx < num_links * 2:
  *                 if sent_links[idx] == s:
  *                     j = eindexes.index(sent_links[idx+1])             # <<<<<<<<<<<<<<
  *                     ret.append(i * ALIGNMENT_CODE + j)
  *                 idx += 2
  */
-        __pyx_t_5 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_eindexes), __pyx_n_s__index); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1481; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_5 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_eindexes), __pyx_n_s__index); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1484; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_5);
-        __pyx_t_1 = PyNumber_Add(__pyx_v_idx, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1481; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_1 = PyNumber_Add(__pyx_v_idx, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1484; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_1);
-        __pyx_t_6 = __Pyx_PyIndex_AsSsize_t(__pyx_t_1); if (unlikely((__pyx_t_6 == (Py_ssize_t)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1481; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_6 = __Pyx_PyIndex_AsSsize_t(__pyx_t_1); if (unlikely((__pyx_t_6 == (Py_ssize_t)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1484; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-        __pyx_t_1 = PyInt_FromLong((__pyx_v_sent_links[__pyx_t_6])); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1481; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_1 = PyInt_FromLong((__pyx_v_sent_links[__pyx_t_6])); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1484; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_1);
-        __pyx_t_7 = PyTuple_New(1); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1481; __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 = 1484; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_7);
         PyTuple_SET_ITEM(__pyx_t_7, 0, __pyx_t_1);
         __Pyx_GIVEREF(__pyx_t_1);
         __pyx_t_1 = 0;
-        __pyx_t_1 = PyObject_Call(__pyx_t_5, ((PyObject *)__pyx_t_7), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1481; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_1 = PyObject_Call(__pyx_t_5, ((PyObject *)__pyx_t_7), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1484; __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_7)); __pyx_t_7 = 0;
         __Pyx_XDECREF_SET(__pyx_v_j, __pyx_t_1);
         __pyx_t_1 = 0;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1482
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1485
  *                 if sent_links[idx] == s:
  *                     j = eindexes.index(sent_links[idx+1])
  *                     ret.append(i * ALIGNMENT_CODE + j)             # <<<<<<<<<<<<<<
  *                 idx += 2
  *         return ret
  */
-        __pyx_t_1 = PyLong_FromUnsignedLong((__pyx_v_i * __pyx_v_4cdec_2sa_3_sa_ALIGNMENT_CODE)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1482; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_1 = PyLong_FromUnsignedLong((__pyx_v_i * __pyx_v_4cdec_2sa_3_sa_ALIGNMENT_CODE)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1485; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_1);
-        __pyx_t_7 = PyNumber_Add(__pyx_t_1, __pyx_v_j); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1482; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_7 = PyNumber_Add(__pyx_t_1, __pyx_v_j); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1485; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_7);
         __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-        __pyx_t_1 = __Pyx_PyObject_Append(((PyObject *)__pyx_v_ret), __pyx_t_7); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1482; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_1 = __Pyx_PyObject_Append(((PyObject *)__pyx_v_ret), __pyx_t_7); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1485; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_1);
         __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
         __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
@@ -55083,14 +55255,14 @@ static struct __pyx_obj_4cdec_2sa_3_sa_IntList *__pyx_f_4cdec_2sa_3_sa_23HieroCa
       }
       __pyx_L8:;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1483
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1486
  *                     j = eindexes.index(sent_links[idx+1])
  *                     ret.append(i * ALIGNMENT_CODE + j)
  *                 idx += 2             # <<<<<<<<<<<<<<
  *         return ret
  * 
  */
-      __pyx_t_1 = PyNumber_InPlaceAdd(__pyx_v_idx, __pyx_int_2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1483; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyNumber_InPlaceAdd(__pyx_v_idx, __pyx_int_2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1486; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
       __Pyx_DECREF_SET(__pyx_v_idx, __pyx_t_1);
       __pyx_t_1 = 0;
@@ -55098,7 +55270,7 @@ static struct __pyx_obj_4cdec_2sa_3_sa_IntList *__pyx_f_4cdec_2sa_3_sa_23HieroCa
     __pyx_L3_continue:;
   }
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1484
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1487
  *                     ret.append(i * ALIGNMENT_CODE + j)
  *                 idx += 2
  *         return ret             # <<<<<<<<<<<<<<
@@ -55127,7 +55299,7 @@ static struct __pyx_obj_4cdec_2sa_3_sa_IntList *__pyx_f_4cdec_2sa_3_sa_23HieroCa
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1486
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1489
  *         return ret
  * 
  *     cdef extract(self, Phrase phrase, Matching* matching, int* chunklen, int num_chunks):             # <<<<<<<<<<<<<<
@@ -55221,19 +55393,19 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("extract", 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1499
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1502
  *         cdef reason_for_failure
  * 
  *         fphr_arr = IntList()             # <<<<<<<<<<<<<<
  *         phrase_len = phrase.n
  *         extracts = []
  */
-  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1499; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_IntList)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1502; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_v_fphr_arr = ((struct __pyx_obj_4cdec_2sa_3_sa_IntList *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1500
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1503
  * 
  *         fphr_arr = IntList()
  *         phrase_len = phrase.n             # <<<<<<<<<<<<<<
@@ -55243,19 +55415,19 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
   __pyx_t_2 = __pyx_v_phrase->n;
   __pyx_v_phrase_len = __pyx_t_2;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1501
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1504
  *         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 = 1501; __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 = 1504; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_v_extracts = ((PyObject *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1502
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1505
  *         phrase_len = phrase.n
  *         extracts = []
  *         sent_links = self.alignment._get_sent_links(matching.sent_id, &num_links)             # <<<<<<<<<<<<<<
@@ -55264,7 +55436,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
   __pyx_v_sent_links = ((struct __pyx_vtabstruct_4cdec_2sa_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));
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1504
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1507
  *         sent_links = self.alignment._get_sent_links(matching.sent_id, &num_links)
  * 
  *         e_sent_start = self.eda.sent_index.arr[matching.sent_id]             # <<<<<<<<<<<<<<
@@ -55273,7 +55445,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
   __pyx_v_e_sent_start = (__pyx_v_self->eda->sent_index->arr[__pyx_v_matching->sent_id]);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1505
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1508
  * 
  *         e_sent_start = self.eda.sent_index.arr[matching.sent_id]
  *         e_sent_end = self.eda.sent_index.arr[matching.sent_id+1]             # <<<<<<<<<<<<<<
@@ -55282,7 +55454,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
   __pyx_v_e_sent_end = (__pyx_v_self->eda->sent_index->arr[(__pyx_v_matching->sent_id + 1)]);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1506
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1509
  *         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             # <<<<<<<<<<<<<<
@@ -55291,7 +55463,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
   __pyx_v_e_sent_len = ((__pyx_v_e_sent_end - __pyx_v_e_sent_start) - 1);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1507
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1510
  *         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]             # <<<<<<<<<<<<<<
@@ -55300,7 +55472,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
   __pyx_v_f_sent_start = (__pyx_v_self->fda->sent_index->arr[__pyx_v_matching->sent_id]);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1508
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1511
  *         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]             # <<<<<<<<<<<<<<
@@ -55309,7 +55481,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
   __pyx_v_f_sent_end = (__pyx_v_self->fda->sent_index->arr[(__pyx_v_matching->sent_id + 1)]);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1509
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1512
  *         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             # <<<<<<<<<<<<<<
@@ -55318,21 +55490,21 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
   __pyx_v_f_sent_len = ((__pyx_v_f_sent_end - __pyx_v_f_sent_start) - 1);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1511
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1514
  *         f_sent_len = f_sent_end - f_sent_start - 1
  * 
  *         self.findexes1.reset()             # <<<<<<<<<<<<<<
  *         sofar = 0
  *         for i in range(num_chunks):
  */
-  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self->findexes1), __pyx_n_s__reset); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1511; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self->findexes1), __pyx_n_s__reset); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1514; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_3 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1511; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1514; __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;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1512
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1515
  * 
  *         self.findexes1.reset()
  *         sofar = 0             # <<<<<<<<<<<<<<
@@ -55342,7 +55514,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
   __Pyx_INCREF(__pyx_int_0);
   __pyx_v_sofar = __pyx_int_0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1513
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1516
  *         self.findexes1.reset()
  *         sofar = 0
  *         for i in range(num_chunks):             # <<<<<<<<<<<<<<
@@ -55353,7 +55525,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
   for (__pyx_t_4 = 0; __pyx_t_4 < __pyx_t_2; __pyx_t_4+=1) {
     __pyx_v_i = __pyx_t_4;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1514
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1517
  *         sofar = 0
  *         for i in range(num_chunks):
  *             for j in range(chunklen[i]):             # <<<<<<<<<<<<<<
@@ -55364,34 +55536,34 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
     for (__pyx_t_6 = 0; __pyx_t_6 < __pyx_t_5; __pyx_t_6+=1) {
       __pyx_v_j = __pyx_t_6;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1515
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1518
  *         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_3 = 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_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1515; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = 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_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1518; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
-      __pyx_t_1 = __Pyx_PyObject_Append(((PyObject *)__pyx_v_self->findexes1), __pyx_t_3); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1515; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = __Pyx_PyObject_Append(((PyObject *)__pyx_v_self->findexes1), __pyx_t_3); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1518; __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;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1516
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1519
  *             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 = 1516; __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 = 1519; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
       __Pyx_DECREF_SET(__pyx_v_sofar, __pyx_t_1);
       __pyx_t_1 = 0;
     }
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1517
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1520
  *                 self.findexes1.append(matching.arr[matching.start+i]+j-f_sent_start);
  *                 sofar += 1
  *             if i+1 < num_chunks:             # <<<<<<<<<<<<<<
@@ -55401,28 +55573,28 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
     __pyx_t_7 = (((__pyx_v_i + 1) < __pyx_v_num_chunks) != 0);
     if (__pyx_t_7) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1518
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1521
  *                 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 = 1518; __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 = 1521; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
-      __pyx_t_3 = __Pyx_PyObject_Append(((PyObject *)__pyx_v_self->findexes1), __pyx_t_1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1518; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = __Pyx_PyObject_Append(((PyObject *)__pyx_v_self->findexes1), __pyx_t_1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1521; __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;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1519
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1522
  *             if i+1 < num_chunks:
  *                 self.findexes1.append(phrase[sofar])
  *                 sofar += 1             # <<<<<<<<<<<<<<
  * 
  * 
  */
-      __pyx_t_3 = PyNumber_InPlaceAdd(__pyx_v_sofar, __pyx_int_1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1519; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = PyNumber_InPlaceAdd(__pyx_v_sofar, __pyx_int_1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1522; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_DECREF_SET(__pyx_v_sofar, __pyx_t_3);
       __pyx_t_3 = 0;
@@ -55431,7 +55603,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
     __pyx_L7:;
   }
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1522
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1525
  * 
  * 
  *         e_links_low = <int*> malloc(e_sent_len*sizeof(int))             # <<<<<<<<<<<<<<
@@ -55440,7 +55612,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
   __pyx_v_e_links_low = ((int *)malloc((__pyx_v_e_sent_len * (sizeof(int)))));
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1523
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1526
  * 
  *         e_links_low = <int*> malloc(e_sent_len*sizeof(int))
  *         e_links_high = <int*> malloc(e_sent_len*sizeof(int))             # <<<<<<<<<<<<<<
@@ -55449,7 +55621,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
   __pyx_v_e_links_high = ((int *)malloc((__pyx_v_e_sent_len * (sizeof(int)))));
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1524
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1527
  *         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))             # <<<<<<<<<<<<<<
@@ -55458,7 +55630,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
   __pyx_v_f_links_low = ((int *)malloc((__pyx_v_f_sent_len * (sizeof(int)))));
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1525
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1528
  *         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))             # <<<<<<<<<<<<<<
@@ -55467,7 +55639,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
   __pyx_v_f_links_high = ((int *)malloc((__pyx_v_f_sent_len * (sizeof(int)))));
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1526
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1529
  *         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))             # <<<<<<<<<<<<<<
@@ -55476,7 +55648,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
   __pyx_v_f_gap_low = ((int *)malloc(((__pyx_v_num_chunks + 1) * (sizeof(int)))));
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1527
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1530
  *         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))             # <<<<<<<<<<<<<<
@@ -55485,7 +55657,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
   __pyx_v_f_gap_high = ((int *)malloc(((__pyx_v_num_chunks + 1) * (sizeof(int)))));
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1528
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1531
  *         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))             # <<<<<<<<<<<<<<
@@ -55494,7 +55666,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
   __pyx_v_e_gap_low = ((int *)malloc(((__pyx_v_num_chunks + 1) * (sizeof(int)))));
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1529
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1532
  *         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))             # <<<<<<<<<<<<<<
@@ -55503,7 +55675,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
   __pyx_v_e_gap_high = ((int *)malloc(((__pyx_v_num_chunks + 1) * (sizeof(int)))));
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1530
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1533
  *         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))             # <<<<<<<<<<<<<<
@@ -55512,7 +55684,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
   memset(__pyx_v_f_gap_low, 0, ((__pyx_v_num_chunks + 1) * (sizeof(int))));
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1531
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1534
  *         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))             # <<<<<<<<<<<<<<
@@ -55521,7 +55693,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
   memset(__pyx_v_f_gap_high, 0, ((__pyx_v_num_chunks + 1) * (sizeof(int))));
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1532
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1535
  *         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))             # <<<<<<<<<<<<<<
@@ -55530,7 +55702,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
   memset(__pyx_v_e_gap_low, 0, ((__pyx_v_num_chunks + 1) * (sizeof(int))));
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1533
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1536
  *         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))             # <<<<<<<<<<<<<<
@@ -55539,7 +55711,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
   memset(__pyx_v_e_gap_high, 0, ((__pyx_v_num_chunks + 1) * (sizeof(int))));
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1535
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1538
  *         memset(e_gap_high, 0, (num_chunks+1)*sizeof(int))
  * 
  *         reason_for_failure = ""             # <<<<<<<<<<<<<<
@@ -55549,7 +55721,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
   __Pyx_INCREF(((PyObject *)__pyx_kp_s_47));
   __pyx_v_reason_for_failure = ((PyObject *)__pyx_kp_s_47);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1537
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1540
  *         reason_for_failure = ""
  * 
  *         for i from 0 <= i < e_sent_len:             # <<<<<<<<<<<<<<
@@ -55559,7 +55731,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
   __pyx_t_2 = __pyx_v_e_sent_len;
   for (__pyx_v_i = 0; __pyx_v_i < __pyx_t_2; __pyx_v_i++) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1538
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1541
  * 
  *         for i from 0 <= i < e_sent_len:
  *             e_links_low[i] = -1             # <<<<<<<<<<<<<<
@@ -55568,7 +55740,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
     (__pyx_v_e_links_low[__pyx_v_i]) = -1;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1539
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1542
  *         for i from 0 <= i < e_sent_len:
  *             e_links_low[i] = -1
  *             e_links_high[i] = -1             # <<<<<<<<<<<<<<
@@ -55578,7 +55750,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
     (__pyx_v_e_links_high[__pyx_v_i]) = -1;
   }
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1540
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1543
  *             e_links_low[i] = -1
  *             e_links_high[i] = -1
  *         for i from 0 <= i < f_sent_len:             # <<<<<<<<<<<<<<
@@ -55588,7 +55760,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
   __pyx_t_2 = __pyx_v_f_sent_len;
   for (__pyx_v_i = 0; __pyx_v_i < __pyx_t_2; __pyx_v_i++) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1541
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1544
  *             e_links_high[i] = -1
  *         for i from 0 <= i < f_sent_len:
  *             f_links_low[i] = -1             # <<<<<<<<<<<<<<
@@ -55597,7 +55769,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
     (__pyx_v_f_links_low[__pyx_v_i]) = -1;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1542
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1545
  *         for i from 0 <= i < f_sent_len:
  *             f_links_low[i] = -1
  *             f_links_high[i] = -1             # <<<<<<<<<<<<<<
@@ -55607,7 +55779,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
     (__pyx_v_f_links_high[__pyx_v_i]) = -1;
   }
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1548
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1551
  *         # links that we care about (but then how to look up
  *         # when we want to check something on the e side?)
  *         i = 0             # <<<<<<<<<<<<<<
@@ -55616,7 +55788,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
   __pyx_v_i = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1549
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1552
  *         # when we want to check something on the e side?)
  *         i = 0
  *         while i < num_links*2:             # <<<<<<<<<<<<<<
@@ -55627,7 +55799,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
     __pyx_t_7 = ((__pyx_v_i < (__pyx_v_num_links * 2)) != 0);
     if (!__pyx_t_7) break;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1550
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1553
  *         i = 0
  *         while i < num_links*2:
  *             f_i = sent_links[i]             # <<<<<<<<<<<<<<
@@ -55636,7 +55808,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
     __pyx_v_f_i = (__pyx_v_sent_links[__pyx_v_i]);
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1551
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1554
  *         while i < num_links*2:
  *             f_i = sent_links[i]
  *             e_i = sent_links[i+1]             # <<<<<<<<<<<<<<
@@ -55645,7 +55817,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
     __pyx_v_e_i = (__pyx_v_sent_links[(__pyx_v_i + 1)]);
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1552
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1555
  *             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:             # <<<<<<<<<<<<<<
@@ -55661,7 +55833,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
     }
     if (__pyx_t_9) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1553
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1556
  *             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             # <<<<<<<<<<<<<<
@@ -55673,7 +55845,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
     }
     __pyx_L14:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1554
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1557
  *             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:             # <<<<<<<<<<<<<<
@@ -55689,7 +55861,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
     }
     if (__pyx_t_8) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1555
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1558
  *                 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             # <<<<<<<<<<<<<<
@@ -55701,7 +55873,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
     }
     __pyx_L15:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1556
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1559
  *             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:             # <<<<<<<<<<<<<<
@@ -55717,7 +55889,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
     }
     if (__pyx_t_7) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1557
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1560
  *                 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             # <<<<<<<<<<<<<<
@@ -55729,7 +55901,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
     }
     __pyx_L16:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1558
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1561
  *             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:             # <<<<<<<<<<<<<<
@@ -55745,7 +55917,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
     }
     if (__pyx_t_9) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1559
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1562
  *                 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             # <<<<<<<<<<<<<<
@@ -55757,7 +55929,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
     }
     __pyx_L17:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1560
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1563
  *             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             # <<<<<<<<<<<<<<
@@ -55767,19 +55939,19 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
     __pyx_v_i = (__pyx_v_i + 2);
   }
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1562
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1565
  *             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_3 = PyList_New(0); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1562; __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 = 1565; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __pyx_v_als = ((PyObject*)__pyx_t_3);
   __pyx_t_3 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1563
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1566
  * 
  *         als = []
  *         for x in range(matching.start,matching.end):             # <<<<<<<<<<<<<<
@@ -55790,18 +55962,18 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
   for (__pyx_t_4 = __pyx_v_matching->start; __pyx_t_4 < __pyx_t_2; __pyx_t_4+=1) {
     __pyx_v_x = __pyx_t_4;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1564
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1567
  *         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_3 = PyInt_FromLong(((__pyx_v_matching->arr[__pyx_v_x]) - __pyx_v_f_sent_start)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1564; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyInt_FromLong(((__pyx_v_matching->arr[__pyx_v_x]) - __pyx_v_f_sent_start)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1567; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
-    __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 = 1564; __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 = 1567; __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 = 1564; __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 = 1567; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_10);
     PyTuple_SET_ITEM(__pyx_t_10, 0, __pyx_t_3);
     __Pyx_GIVEREF(__pyx_t_3);
@@ -55812,17 +55984,17 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
     __Pyx_XDECREF_SET(__pyx_v_al, ((PyObject*)__pyx_t_10));
     __pyx_t_10 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1565
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1568
  *         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 = __Pyx_PyList_Append(__pyx_v_als, ((PyObject *)__pyx_v_al)); if (unlikely(__pyx_t_11 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1565; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_11 = __Pyx_PyList_Append(__pyx_v_als, ((PyObject *)__pyx_v_al)); if (unlikely(__pyx_t_11 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1568; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   }
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1567
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1570
  *             als.append(al)
  *         # check all source-side alignment constraints
  *         met_constraints = 1             # <<<<<<<<<<<<<<
@@ -55831,7 +56003,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
   __pyx_v_met_constraints = 1;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1568
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1571
  *         # check all source-side alignment constraints
  *         met_constraints = 1
  *         if self.require_aligned_terminal:             # <<<<<<<<<<<<<<
@@ -55841,7 +56013,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
   __pyx_t_9 = (__pyx_v_self->require_aligned_terminal != 0);
   if (__pyx_t_9) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1569
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1572
  *         met_constraints = 1
  *         if self.require_aligned_terminal:
  *             num_aligned_chunks = 0             # <<<<<<<<<<<<<<
@@ -55850,7 +56022,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
     __pyx_v_num_aligned_chunks = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1570
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1573
  *         if self.require_aligned_terminal:
  *             num_aligned_chunks = 0
  *             for i from 0 <= i < num_chunks:             # <<<<<<<<<<<<<<
@@ -55860,7 +56032,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
     __pyx_t_2 = __pyx_v_num_chunks;
     for (__pyx_v_i = 0; __pyx_v_i < __pyx_t_2; __pyx_v_i++) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1571
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1574
  *             num_aligned_chunks = 0
  *             for i from 0 <= i < num_chunks:
  *                 for j from 0 <= j < chunklen[i]:             # <<<<<<<<<<<<<<
@@ -55870,7 +56042,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
       __pyx_t_4 = (__pyx_v_chunklen[__pyx_v_i]);
       for (__pyx_v_j = 0; __pyx_v_j < __pyx_t_4; __pyx_v_j++) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1572
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1575
  *             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:             # <<<<<<<<<<<<<<
@@ -55880,7 +56052,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
         __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) != 0);
         if (__pyx_t_9) {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1573
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1576
  *                 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             # <<<<<<<<<<<<<<
@@ -55889,7 +56061,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
           __pyx_v_num_aligned_chunks = (__pyx_v_num_aligned_chunks + 1);
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1574
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1577
  *                     if f_links_low[matching.arr[matching.start+i]+j-f_sent_start] > -1:
  *                         num_aligned_chunks = num_aligned_chunks + 1
  *                         break             # <<<<<<<<<<<<<<
@@ -55904,7 +56076,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
       __pyx_L24_break:;
     }
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1575
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1578
  *                         num_aligned_chunks = num_aligned_chunks + 1
  *                         break
  *             if num_aligned_chunks == 0:             # <<<<<<<<<<<<<<
@@ -55914,7 +56086,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
     __pyx_t_9 = ((__pyx_v_num_aligned_chunks == 0) != 0);
     if (__pyx_t_9) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1576
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1579
  *                         break
  *             if num_aligned_chunks == 0:
  *                 reason_for_failure = "No aligned terminals"             # <<<<<<<<<<<<<<
@@ -55924,7 +56096,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
       __Pyx_INCREF(((PyObject *)__pyx_kp_s_133));
       __Pyx_DECREF_SET(__pyx_v_reason_for_failure, ((PyObject *)__pyx_kp_s_133));
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1577
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1580
  *             if num_aligned_chunks == 0:
  *                 reason_for_failure = "No aligned terminals"
  *                 met_constraints = 0             # <<<<<<<<<<<<<<
@@ -55936,7 +56108,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
     }
     __pyx_L26:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1578
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1581
  *                 reason_for_failure = "No aligned terminals"
  *                 met_constraints = 0
  *             if self.require_aligned_chunks and num_aligned_chunks < num_chunks:             # <<<<<<<<<<<<<<
@@ -55951,7 +56123,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
     }
     if (__pyx_t_7) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1579
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1582
  *                 met_constraints = 0
  *             if self.require_aligned_chunks and num_aligned_chunks < num_chunks:
  *                 reason_for_failure = "Unaligned chunk"             # <<<<<<<<<<<<<<
@@ -55961,7 +56133,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
       __Pyx_INCREF(((PyObject *)__pyx_kp_s_134));
       __Pyx_DECREF_SET(__pyx_v_reason_for_failure, ((PyObject *)__pyx_kp_s_134));
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1580
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1583
  *             if self.require_aligned_chunks and num_aligned_chunks < num_chunks:
  *                 reason_for_failure = "Unaligned chunk"
  *                 met_constraints = 0             # <<<<<<<<<<<<<<
@@ -55976,7 +56148,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
   }
   __pyx_L20:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1582
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1585
  *                 met_constraints = 0
  * 
  *         if met_constraints and self.tight_phrases:             # <<<<<<<<<<<<<<
@@ -55991,7 +56163,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
   }
   if (__pyx_t_9) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1584
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1587
  *         if met_constraints and self.tight_phrases:
  *             # outside edge constraints are checked later
  *             for i from 0 <= i < num_chunks-1:             # <<<<<<<<<<<<<<
@@ -56001,7 +56173,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
     __pyx_t_12 = (__pyx_v_num_chunks - 1);
     for (__pyx_v_i = 0; __pyx_v_i < __pyx_t_12; __pyx_v_i++) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1585
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1588
  *             # 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:             # <<<<<<<<<<<<<<
@@ -56011,7 +56183,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
       __pyx_t_9 = (((__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) != 0);
       if (__pyx_t_9) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1586
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1589
  *             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"             # <<<<<<<<<<<<<<
@@ -56021,7 +56193,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
         __Pyx_INCREF(((PyObject *)__pyx_kp_s_135));
         __Pyx_DECREF_SET(__pyx_v_reason_for_failure, ((PyObject *)__pyx_kp_s_135));
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1587
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1590
  *                 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             # <<<<<<<<<<<<<<
@@ -56030,7 +56202,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
         __pyx_v_met_constraints = 0;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1588
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1591
  *                     reason_for_failure = "Gaps are not tight phrases"
  *                     met_constraints = 0
  *                     break             # <<<<<<<<<<<<<<
@@ -56042,7 +56214,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
       }
       __pyx_L31:;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1589
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1592
  *                     met_constraints = 0
  *                     break
  *                 if f_links_low[matching.arr[matching.start+i+1]-1-f_sent_start] == -1:             # <<<<<<<<<<<<<<
@@ -56052,7 +56224,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
       __pyx_t_9 = (((__pyx_v_f_links_low[(((__pyx_v_matching->arr[((__pyx_v_matching->start + __pyx_v_i) + 1)]) - 1) - __pyx_v_f_sent_start)]) == -1) != 0);
       if (__pyx_t_9) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1590
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1593
  *                     break
  *                 if f_links_low[matching.arr[matching.start+i+1]-1-f_sent_start] == -1:
  *                     reason_for_failure = "Gaps are not tight phrases"             # <<<<<<<<<<<<<<
@@ -56062,7 +56234,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
         __Pyx_INCREF(((PyObject *)__pyx_kp_s_135));
         __Pyx_DECREF_SET(__pyx_v_reason_for_failure, ((PyObject *)__pyx_kp_s_135));
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1591
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1594
  *                 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             # <<<<<<<<<<<<<<
@@ -56071,7 +56243,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
         __pyx_v_met_constraints = 0;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1592
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1595
  *                     reason_for_failure = "Gaps are not tight phrases"
  *                     met_constraints = 0
  *                     break             # <<<<<<<<<<<<<<
@@ -56088,7 +56260,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
   }
   __pyx_L28:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1594
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1597
  *                     break
  * 
  *         f_low = matching.arr[matching.start] - f_sent_start             # <<<<<<<<<<<<<<
@@ -56097,7 +56269,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
   __pyx_v_f_low = ((__pyx_v_matching->arr[__pyx_v_matching->start]) - __pyx_v_f_sent_start);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1595
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1598
  * 
  *         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             # <<<<<<<<<<<<<<
@@ -56106,7 +56278,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
   __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);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1596
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1599
  *         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:             # <<<<<<<<<<<<<<
@@ -56116,17 +56288,17 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
   __pyx_t_9 = (__pyx_v_met_constraints != 0);
   if (__pyx_t_9) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1598
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1601
  *         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 = 1598; __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 = 1601; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_10);
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1602
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1605
  *                                 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):             # <<<<<<<<<<<<<<
@@ -56137,7 +56309,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
     __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
     if (__pyx_t_9) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1603
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1606
  *                                 self.train_min_gap_size, 0,
  *                                 self.max_nonterminals - num_chunks + 1, 1, 1, 0, 0):
  *                 gap_error = 0             # <<<<<<<<<<<<<<
@@ -56146,7 +56318,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
       __pyx_v_gap_error = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1604
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1607
  *                                 self.max_nonterminals - num_chunks + 1, 1, 1, 0, 0):
  *                 gap_error = 0
  *                 num_gaps = 0             # <<<<<<<<<<<<<<
@@ -56155,7 +56327,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
       __pyx_v_num_gaps = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1606
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1609
  *                 num_gaps = 0
  * 
  *                 if f_back_low < f_low:             # <<<<<<<<<<<<<<
@@ -56165,7 +56337,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
       __pyx_t_9 = ((__pyx_v_f_back_low < __pyx_v_f_low) != 0);
       if (__pyx_t_9) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1607
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1610
  * 
  *                 if f_back_low < f_low:
  *                     f_gap_low[0] = f_back_low             # <<<<<<<<<<<<<<
@@ -56174,7 +56346,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
         (__pyx_v_f_gap_low[0]) = __pyx_v_f_back_low;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1608
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1611
  *                 if f_back_low < f_low:
  *                     f_gap_low[0] = f_back_low
  *                     f_gap_high[0] = f_low             # <<<<<<<<<<<<<<
@@ -56183,7 +56355,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
         (__pyx_v_f_gap_high[0]) = __pyx_v_f_low;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1609
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1612
  *                     f_gap_low[0] = f_back_low
  *                     f_gap_high[0] = f_low
  *                     num_gaps = 1             # <<<<<<<<<<<<<<
@@ -56192,7 +56364,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
         __pyx_v_num_gaps = 1;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1610
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1613
  *                     f_gap_high[0] = f_low
  *                     num_gaps = 1
  *                     gap_start = 0             # <<<<<<<<<<<<<<
@@ -56201,7 +56373,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
         __pyx_v_gap_start = 0;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1611
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1614
  *                     num_gaps = 1
  *                     gap_start = 0
  *                     phrase_len = phrase_len+1             # <<<<<<<<<<<<<<
@@ -56210,7 +56382,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
         __pyx_v_phrase_len = (__pyx_v_phrase_len + 1);
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1612
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1615
  *                     gap_start = 0
  *                     phrase_len = phrase_len+1
  *                     if phrase_len > self.max_length:             # <<<<<<<<<<<<<<
@@ -56220,7 +56392,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
         __pyx_t_9 = ((__pyx_v_phrase_len > __pyx_v_self->max_length) != 0);
         if (__pyx_t_9) {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1613
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1616
  *                     phrase_len = phrase_len+1
  *                     if phrase_len > self.max_length:
  *                         gap_error = 1             # <<<<<<<<<<<<<<
@@ -56232,7 +56404,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
         }
         __pyx_L36:;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1614
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1617
  *                     if phrase_len > self.max_length:
  *                         gap_error = 1
  *                     if self.tight_phrases:             # <<<<<<<<<<<<<<
@@ -56242,7 +56414,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
         __pyx_t_9 = (__pyx_v_self->tight_phrases != 0);
         if (__pyx_t_9) {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1615
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1618
  *                         gap_error = 1
  *                     if self.tight_phrases:
  *                         if f_links_low[f_back_low] == -1 or f_links_low[f_low-1] == -1:             # <<<<<<<<<<<<<<
@@ -56258,7 +56430,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
           }
           if (__pyx_t_8) {
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1616
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1619
  *                     if self.tight_phrases:
  *                         if f_links_low[f_back_low] == -1 or f_links_low[f_low-1] == -1:
  *                             gap_error = 1             # <<<<<<<<<<<<<<
@@ -56267,7 +56439,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
             __pyx_v_gap_error = 1;
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1617
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1620
  *                         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"             # <<<<<<<<<<<<<<
@@ -56286,7 +56458,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
       }
       /*else*/ {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1619
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1622
  *                             reason_for_failure = "Inside edges of preceding subphrase are not tight"
  *                 else:
  *                     gap_start = 1             # <<<<<<<<<<<<<<
@@ -56295,7 +56467,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
         __pyx_v_gap_start = 1;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1620
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1623
  *                 else:
  *                     gap_start = 1
  *                     if self.tight_phrases and f_links_low[f_low] == -1:             # <<<<<<<<<<<<<<
@@ -56310,7 +56482,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
         }
         if (__pyx_t_9) {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1623
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1626
  *                         # 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             # <<<<<<<<<<<<<<
@@ -56324,7 +56496,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
       }
       __pyx_L35:;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1625
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1628
  *                         met_constraints = 0
  * 
  *                 for i from 0 <= i < matching.size - 1:             # <<<<<<<<<<<<<<
@@ -56334,7 +56506,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
       __pyx_t_12 = (__pyx_v_matching->size - 1);
       for (__pyx_v_i = 0; __pyx_v_i < __pyx_t_12; __pyx_v_i++) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1626
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1629
  * 
  *                 for i from 0 <= i < matching.size - 1:
  *                     f_gap_low[1+i] = matching.arr[matching.start+i] + chunklen[i] - f_sent_start             # <<<<<<<<<<<<<<
@@ -56343,7 +56515,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
         (__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);
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1627
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1630
  *                 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             # <<<<<<<<<<<<<<
@@ -56352,7 +56524,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
         (__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);
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1628
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1631
  *                     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             # <<<<<<<<<<<<<<
@@ -56362,7 +56534,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
         __pyx_v_num_gaps = (__pyx_v_num_gaps + 1);
       }
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1630
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1633
  *                     num_gaps = num_gaps + 1
  * 
  *                 if f_high < f_back_high:             # <<<<<<<<<<<<<<
@@ -56372,7 +56544,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
       __pyx_t_9 = ((__pyx_v_f_high < __pyx_v_f_back_high) != 0);
       if (__pyx_t_9) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1631
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1634
  * 
  *                 if f_high < f_back_high:
  *                     f_gap_low[gap_start+num_gaps] = f_high             # <<<<<<<<<<<<<<
@@ -56381,7 +56553,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
         (__pyx_v_f_gap_low[(__pyx_v_gap_start + __pyx_v_num_gaps)]) = __pyx_v_f_high;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1632
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1635
  *                 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             # <<<<<<<<<<<<<<
@@ -56390,7 +56562,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
         (__pyx_v_f_gap_high[(__pyx_v_gap_start + __pyx_v_num_gaps)]) = __pyx_v_f_back_high;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1633
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1636
  *                     f_gap_low[gap_start+num_gaps] = f_high
  *                     f_gap_high[gap_start+num_gaps] = f_back_high
  *                     num_gaps = num_gaps + 1             # <<<<<<<<<<<<<<
@@ -56399,7 +56571,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
         __pyx_v_num_gaps = (__pyx_v_num_gaps + 1);
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1634
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1637
  *                     f_gap_high[gap_start+num_gaps] = f_back_high
  *                     num_gaps = num_gaps + 1
  *                     phrase_len = phrase_len+1             # <<<<<<<<<<<<<<
@@ -56408,7 +56580,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
         __pyx_v_phrase_len = (__pyx_v_phrase_len + 1);
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1635
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1638
  *                     num_gaps = num_gaps + 1
  *                     phrase_len = phrase_len+1
  *                     if phrase_len > self.max_length:             # <<<<<<<<<<<<<<
@@ -56418,7 +56590,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
         __pyx_t_9 = ((__pyx_v_phrase_len > __pyx_v_self->max_length) != 0);
         if (__pyx_t_9) {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1636
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1639
  *                     phrase_len = phrase_len+1
  *                     if phrase_len > self.max_length:
  *                         gap_error = 1             # <<<<<<<<<<<<<<
@@ -56430,7 +56602,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
         }
         __pyx_L43:;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1637
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1640
  *                     if phrase_len > self.max_length:
  *                         gap_error = 1
  *                     if self.tight_phrases:             # <<<<<<<<<<<<<<
@@ -56440,7 +56612,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
         __pyx_t_9 = (__pyx_v_self->tight_phrases != 0);
         if (__pyx_t_9) {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1638
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1641
  *                         gap_error = 1
  *                     if self.tight_phrases:
  *                         if f_links_low[f_back_high-1] == -1 or f_links_low[f_high] == -1:             # <<<<<<<<<<<<<<
@@ -56456,7 +56628,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
           }
           if (__pyx_t_7) {
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1639
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1642
  *                     if self.tight_phrases:
  *                         if f_links_low[f_back_high-1] == -1 or f_links_low[f_high] == -1:
  *                             gap_error = 1             # <<<<<<<<<<<<<<
@@ -56465,7 +56637,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
             __pyx_v_gap_error = 1;
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1640
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1643
  *                         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"             # <<<<<<<<<<<<<<
@@ -56484,7 +56656,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
       }
       /*else*/ {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1642
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1645
  *                             reason_for_failure = "Inside edges of following subphrase are not tight"
  *                 else:
  *                     if self.tight_phrases and f_links_low[f_high-1] == -1:             # <<<<<<<<<<<<<<
@@ -56499,7 +56671,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
         }
         if (__pyx_t_9) {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1643
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1646
  *                 else:
  *                     if self.tight_phrases and f_links_low[f_high-1] == -1:
  *                         met_constraints = 0             # <<<<<<<<<<<<<<
@@ -56513,7 +56685,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
       }
       __pyx_L42:;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1645
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1648
  *                         met_constraints = 0
  * 
  *                 if gap_error == 0:             # <<<<<<<<<<<<<<
@@ -56523,7 +56695,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
       __pyx_t_9 = ((__pyx_v_gap_error == 0) != 0);
       if (__pyx_t_9) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1646
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1649
  * 
  *                 if gap_error == 0:
  *                     e_word_count = e_high - e_low             # <<<<<<<<<<<<<<
@@ -56532,7 +56704,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
         __pyx_v_e_word_count = (__pyx_v_e_high - __pyx_v_e_low);
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1647
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1650
  *                 if gap_error == 0:
  *                     e_word_count = e_high - e_low
  *                     for i from 0 <= i < num_gaps: # check integrity of subphrases             # <<<<<<<<<<<<<<
@@ -56542,17 +56714,17 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
         __pyx_t_2 = __pyx_v_num_gaps;
         for (__pyx_v_i = 0; __pyx_v_i < __pyx_t_2; __pyx_v_i++) {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1648
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1651
  *                     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 = 1648; __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 = 1651; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_10);
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1653
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1656
  *                                             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,             # <<<<<<<<<<<<<<
@@ -56563,7 +56735,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
           __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
           if (__pyx_t_9) {
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1655
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1658
  *                                             self.train_max_initial_size, self.train_max_initial_size,
  *                                             0, 0, 0, 0, 0, 0, 0) == 0:
  *                             gap_error = 1             # <<<<<<<<<<<<<<
@@ -56572,18 +56744,18 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
             __pyx_v_gap_error = 1;
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1656
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1659
  *                                             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 = 1656; __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 = 1659; __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 = 1656; __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 = 1659; __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 = 1656; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1659; __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);
@@ -56591,13 +56763,13 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
             __Pyx_GIVEREF(__pyx_t_1);
             __pyx_t_10 = 0;
             __pyx_t_1 = 0;
-            __pyx_t_1 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_138), ((PyObject *)__pyx_t_3)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1656; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_1 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_138), ((PyObject *)__pyx_t_3)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1659; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(((PyObject *)__pyx_t_1));
             __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
             __Pyx_DECREF_SET(__pyx_v_reason_for_failure, ((PyObject *)__pyx_t_1));
             __pyx_t_1 = 0;
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1657
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1660
  *                             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             # <<<<<<<<<<<<<<
@@ -56614,7 +56786,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
       }
       __pyx_L47:;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1659
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1662
  *                             break
  * 
  *                 if gap_error == 0:             # <<<<<<<<<<<<<<
@@ -56624,7 +56796,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
       __pyx_t_9 = ((__pyx_v_gap_error == 0) != 0);
       if (__pyx_t_9) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1660
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1663
  * 
  *                 if gap_error == 0:
  *                     i = 1             # <<<<<<<<<<<<<<
@@ -56633,21 +56805,21 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
         __pyx_v_i = 1;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1661
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1664
  *                 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 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self->findexes), __pyx_n_s__reset); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1661; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_1 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self->findexes), __pyx_n_s__reset); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1664; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_1);
-        __pyx_t_3 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1661; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_3 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1664; __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;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1662
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1665
  *                     i = 1
  *                     self.findexes.reset()
  *                     if f_back_low < f_low:             # <<<<<<<<<<<<<<
@@ -56657,7 +56829,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
         __pyx_t_9 = ((__pyx_v_f_back_low < __pyx_v_f_low) != 0);
         if (__pyx_t_9) {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1663
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1666
  *                     self.findexes.reset()
  *                     if f_back_low < f_low:
  *                         fphr_arr._append(sym_setindex(self.category, i))             # <<<<<<<<<<<<<<
@@ -56666,7 +56838,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
           ((struct __pyx_vtabstruct_4cdec_2sa_3_sa_IntList *)__pyx_v_fphr_arr->__pyx_vtab)->_append(__pyx_v_fphr_arr, __pyx_f_4cdec_2sa_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i));
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1664
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1667
  *                     if f_back_low < f_low:
  *                         fphr_arr._append(sym_setindex(self.category, i))
  *                         i = i+1             # <<<<<<<<<<<<<<
@@ -56675,16 +56847,16 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
           __pyx_v_i = (__pyx_v_i + 1);
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1665
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1668
  *                         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_3 = PyInt_FromLong(__pyx_f_4cdec_2sa_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1665; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_3 = PyInt_FromLong(__pyx_f_4cdec_2sa_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1668; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_3);
-          __pyx_t_1 = __Pyx_PyObject_Append(((PyObject *)__pyx_v_self->findexes), __pyx_t_3); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1665; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_1 = __Pyx_PyObject_Append(((PyObject *)__pyx_v_self->findexes), __pyx_t_3); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1668; __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;
@@ -56692,27 +56864,27 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
         }
         __pyx_L52:;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1666
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1669
  *                         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 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self->findexes), __pyx_n_s__extend); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1666; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_1 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self->findexes), __pyx_n_s__extend); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1669; __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[8]; __pyx_lineno = 1666; __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 = 1669; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_3);
         __Pyx_INCREF(((PyObject *)__pyx_v_self->findexes1));
         PyTuple_SET_ITEM(__pyx_t_3, 0, ((PyObject *)__pyx_v_self->findexes1));
         __Pyx_GIVEREF(((PyObject *)__pyx_v_self->findexes1));
-        __pyx_t_10 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1666; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_10 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1669; __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_3)); __pyx_t_3 = 0;
         __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1667
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1670
  *                         self.findexes.append(sym_setindex(self.category, i))
  *                     self.findexes.extend(self.findexes1)
  *                     for j from 0 <= j < phrase.n:             # <<<<<<<<<<<<<<
@@ -56722,7 +56894,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
         __pyx_t_2 = __pyx_v_phrase->n;
         for (__pyx_v_j = 0; __pyx_v_j < __pyx_t_2; __pyx_v_j++) {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1668
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1671
  *                     self.findexes.extend(self.findexes1)
  *                     for j from 0 <= j < phrase.n:
  *                         if sym_isvar(phrase.syms[j]):             # <<<<<<<<<<<<<<
@@ -56732,7 +56904,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
           __pyx_t_9 = (__pyx_f_4cdec_2sa_3_sa_sym_isvar((__pyx_v_phrase->syms[__pyx_v_j])) != 0);
           if (__pyx_t_9) {
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1669
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1672
  *                     for j from 0 <= j < phrase.n:
  *                         if sym_isvar(phrase.syms[j]):
  *                             fphr_arr._append(sym_setindex(self.category, i))             # <<<<<<<<<<<<<<
@@ -56741,7 +56913,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
             ((struct __pyx_vtabstruct_4cdec_2sa_3_sa_IntList *)__pyx_v_fphr_arr->__pyx_vtab)->_append(__pyx_v_fphr_arr, __pyx_f_4cdec_2sa_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i));
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1670
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1673
  *                         if sym_isvar(phrase.syms[j]):
  *                             fphr_arr._append(sym_setindex(self.category, i))
  *                             i = i + 1             # <<<<<<<<<<<<<<
@@ -56753,7 +56925,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
           }
           /*else*/ {
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1672
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1675
  *                             i = i + 1
  *                         else:
  *                             fphr_arr._append(phrase.syms[j])             # <<<<<<<<<<<<<<
@@ -56765,7 +56937,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
           __pyx_L55:;
         }
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1673
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1676
  *                         else:
  *                             fphr_arr._append(phrase.syms[j])
  *                     if f_back_high > f_high:             # <<<<<<<<<<<<<<
@@ -56775,7 +56947,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
         __pyx_t_9 = ((__pyx_v_f_back_high > __pyx_v_f_high) != 0);
         if (__pyx_t_9) {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1674
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1677
  *                             fphr_arr._append(phrase.syms[j])
  *                     if f_back_high > f_high:
  *                         fphr_arr._append(sym_setindex(self.category, i))             # <<<<<<<<<<<<<<
@@ -56784,16 +56956,16 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
           ((struct __pyx_vtabstruct_4cdec_2sa_3_sa_IntList *)__pyx_v_fphr_arr->__pyx_vtab)->_append(__pyx_v_fphr_arr, __pyx_f_4cdec_2sa_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i));
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1675
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1678
  *                     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_4cdec_2sa_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i)); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1675; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_10 = PyInt_FromLong(__pyx_f_4cdec_2sa_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i)); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1678; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_10);
-          __pyx_t_3 = __Pyx_PyObject_Append(((PyObject *)__pyx_v_self->findexes), __pyx_t_10); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1675; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_3 = __Pyx_PyObject_Append(((PyObject *)__pyx_v_self->findexes), __pyx_t_10); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1678; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_3);
           __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
           __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
@@ -56801,25 +56973,25 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
         }
         __pyx_L56:;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1677
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1680
  *                         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_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1677; __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 = 1680; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_3);
         __Pyx_INCREF(((PyObject *)__pyx_v_fphr_arr));
         PyTuple_SET_ITEM(__pyx_t_3, 0, ((PyObject *)__pyx_v_fphr_arr));
         __Pyx_GIVEREF(((PyObject *)__pyx_v_fphr_arr));
-        __pyx_t_10 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_Phrase)), ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1677; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_10 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_Phrase)), ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1680; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_10);
         __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
         __pyx_v_fphr = ((struct __pyx_obj_4cdec_2sa_3_sa_Phrase *)__pyx_t_10);
         __pyx_t_10 = 0;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1678
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1681
  * 
  *                     fphr = Phrase(fphr_arr)
  *                     if met_constraints:             # <<<<<<<<<<<<<<
@@ -56829,37 +57001,37 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
         __pyx_t_9 = (__pyx_v_met_constraints != 0);
         if (__pyx_t_9) {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1681
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1684
  *                         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_4cdec_2sa_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 = 1679; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_10 = ((struct __pyx_vtabstruct_4cdec_2sa_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 = 1682; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_10);
           __pyx_v_phrase_list = __pyx_t_10;
           __pyx_t_10 = 0;
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1682
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1685
  *                                             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 = 1682; __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 = 1685; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __pyx_t_9 = ((__pyx_t_13 > 0) != 0);
           if (__pyx_t_9) {
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1683
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1686
  *                                             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 = 1683; __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 = 1686; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             if (unlikely(__pyx_t_13 == 0)) {
               #ifdef WITH_THREAD
               PyGILState_STATE __pyx_gilstate_save = PyGILState_Ensure();
@@ -56868,14 +57040,14 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
               #ifdef WITH_THREAD
               PyGILState_Release(__pyx_gilstate_save);
               #endif
-              {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1683; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1686; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             }
             __pyx_v_pair_count = (1.0 / __pyx_t_13);
             goto __pyx_L58;
           }
           /*else*/ {
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1685
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1688
  *                             pair_count = 1.0 / len(phrase_list)
  *                         else:
  *                             pair_count = 0             # <<<<<<<<<<<<<<
@@ -56884,22 +57056,22 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
             __pyx_v_pair_count = 0.0;
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1686
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1689
  *                         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 = 1686; __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 = 1689; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_10);
-            __pyx_t_3 = PyInt_FromLong(__pyx_v_f_back_high); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1686; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_3 = PyInt_FromLong(__pyx_v_f_back_high); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1689; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_3);
-            __pyx_t_1 = PyInt_FromLong(__pyx_v_e_low); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1686; __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 = 1689; __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 = 1686; __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 = 1689; __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 = 1686; __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 = 1689; __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);
@@ -56913,7 +57085,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
             __pyx_t_3 = 0;
             __pyx_t_1 = 0;
             __pyx_t_14 = 0;
-            __pyx_t_14 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_139), ((PyObject *)__pyx_t_15)); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1686; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_14 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_139), ((PyObject *)__pyx_t_15)); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1689; __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_SET(__pyx_v_reason_for_failure, ((PyObject *)__pyx_t_14));
@@ -56921,7 +57093,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
           }
           __pyx_L58:;
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1687
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1690
  *                             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:             # <<<<<<<<<<<<<<
@@ -56932,7 +57104,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
             __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 = 1687; __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 = 1690; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_14);
             __pyx_t_16 = Py_TYPE(__pyx_t_14)->tp_iternext;
           }
@@ -56940,23 +57112,23 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
             if (!__pyx_t_16 && PyList_CheckExact(__pyx_t_14)) {
               if (__pyx_t_13 >= PyList_GET_SIZE(__pyx_t_14)) break;
               #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++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1687; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_15 = PyList_GET_ITEM(__pyx_t_14, __pyx_t_13); __Pyx_INCREF(__pyx_t_15); __pyx_t_13++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1690; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               #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 = 1687; __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 = 1690; __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++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1687; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_15 = PyTuple_GET_ITEM(__pyx_t_14, __pyx_t_13); __Pyx_INCREF(__pyx_t_15); __pyx_t_13++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1690; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               #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 = 1687; __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 = 1690; __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 = 1687; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1690; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 }
                 break;
               }
@@ -56972,7 +57144,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
               if (unlikely(size != 2)) {
                 if (size > 2) __Pyx_RaiseTooManyValuesError(2);
                 else if (size >= 0) __Pyx_RaiseNeedMoreValuesError(size);
-                {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1687; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1690; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               }
               #if CYTHON_COMPILING_IN_CPYTHON
               if (likely(PyTuple_CheckExact(sequence))) {
@@ -56985,16 +57157,16 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
               __Pyx_INCREF(__pyx_t_1);
               __Pyx_INCREF(__pyx_t_3);
               #else
-              __pyx_t_1 = PySequence_ITEM(sequence, 0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1687; __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 = 1690; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_1);
-              __pyx_t_3 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1687; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_3 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1690; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_3);
               #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 = 1687; __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 = 1690; __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;
@@ -57002,7 +57174,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
               __Pyx_GOTREF(__pyx_t_1);
               index = 1; __pyx_t_3 = __pyx_t_17(__pyx_t_10); if (unlikely(!__pyx_t_3)) goto __pyx_L61_unpacking_failed;
               __Pyx_GOTREF(__pyx_t_3);
-              if (__Pyx_IternextUnpackEndCheck(__pyx_t_17(__pyx_t_10), 2) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1687; __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 = 1690; __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;
@@ -57010,7 +57182,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
               __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 = 1687; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1690; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __pyx_L62_unpacking_done:;
             }
             __Pyx_XDECREF_SET(__pyx_v_phrase2, __pyx_t_1);
@@ -57018,7 +57190,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
             __Pyx_XDECREF_SET(__pyx_v_eindexes, __pyx_t_3);
             __pyx_t_3 = 0;
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1688
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1691
  *                             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)             # <<<<<<<<<<<<<<
@@ -57027,31 +57199,31 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
             __pyx_t_15 = ((PyObject *)__pyx_v_self->findexes);
             __Pyx_INCREF(__pyx_t_15);
-            if (!(likely(((__pyx_v_eindexes) == Py_None) || likely(__Pyx_TypeTest(__pyx_v_eindexes, __pyx_ptype_4cdec_2sa_3_sa_IntList))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1688; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-            __pyx_t_3 = ((PyObject *)((struct __pyx_vtabstruct_4cdec_2sa_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->create_alignments(__pyx_v_self, __pyx_v_sent_links, __pyx_v_num_links, ((struct __pyx_obj_4cdec_2sa_3_sa_IntList *)__pyx_t_15), ((struct __pyx_obj_4cdec_2sa_3_sa_IntList *)__pyx_v_eindexes))); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1688; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            if (!(likely(((__pyx_v_eindexes) == Py_None) || likely(__Pyx_TypeTest(__pyx_v_eindexes, __pyx_ptype_4cdec_2sa_3_sa_IntList))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1691; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_3 = ((PyObject *)((struct __pyx_vtabstruct_4cdec_2sa_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->create_alignments(__pyx_v_self, __pyx_v_sent_links, __pyx_v_num_links, ((struct __pyx_obj_4cdec_2sa_3_sa_IntList *)__pyx_t_15), ((struct __pyx_obj_4cdec_2sa_3_sa_IntList *)__pyx_v_eindexes))); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1691; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_3);
             __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
             __Pyx_XDECREF_SET(__pyx_v_als1, ((struct __pyx_obj_4cdec_2sa_3_sa_IntList *)__pyx_t_3));
             __pyx_t_3 = 0;
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1689
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1692
  *                         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
  *                         phrase_len < self.max_length and
  */
-            __pyx_t_3 = PyFloat_FromDouble(__pyx_v_pair_count); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1689; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __pyx_t_3 = PyFloat_FromDouble(__pyx_v_pair_count); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1692; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_3);
-            __pyx_t_15 = PyTuple_New(1); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1689; __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 = 1692; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             __Pyx_GOTREF(__pyx_t_15);
             __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 = 1689; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            __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 = 1692; __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 = 1689; __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 = 1692; __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));
@@ -57065,7 +57237,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
             __Pyx_GIVEREF(__pyx_t_1);
             __pyx_t_3 = 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 = 1689; __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 = 1692; __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;
@@ -57075,7 +57247,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
         }
         __pyx_L57:;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1690
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1693
  *                             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             # <<<<<<<<<<<<<<
@@ -57085,7 +57257,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
         __pyx_t_9 = ((__pyx_v_num_gaps < __pyx_v_self->max_nonterminals) != 0);
         if (__pyx_t_9) {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1691
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1694
  *                             extracts.append((fphr, phrase2, pair_count, tuple(als1)))
  *                     if (num_gaps < self.max_nonterminals and
  *                         phrase_len < self.max_length and             # <<<<<<<<<<<<<<
@@ -57095,7 +57267,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
           __pyx_t_7 = ((__pyx_v_phrase_len < __pyx_v_self->max_length) != 0);
           if (__pyx_t_7) {
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1692
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1695
  *                     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):             # <<<<<<<<<<<<<<
@@ -57113,7 +57285,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
         }
         if (__pyx_t_7) {
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1693
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1696
  *                         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             # <<<<<<<<<<<<<<
@@ -57123,7 +57295,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
           __pyx_t_7 = ((__pyx_v_f_back_low == __pyx_v_f_low) != 0);
           if (__pyx_t_7) {
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1694
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1697
  *                         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             # <<<<<<<<<<<<<<
@@ -57133,7 +57305,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
             __pyx_t_9 = ((__pyx_v_f_low >= __pyx_v_self->train_min_gap_size) != 0);
             if (__pyx_t_9) {
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1695
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1698
  *                         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))):             # <<<<<<<<<<<<<<
@@ -57163,7 +57335,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
           }
           if (__pyx_t_9) {
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1696
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1699
  *                                 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             # <<<<<<<<<<<<<<
@@ -57172,7 +57344,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
             __pyx_v_f_x_low = (__pyx_v_f_low - __pyx_v_self->train_min_gap_size);
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1697
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1700
  *                                 ((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             # <<<<<<<<<<<<<<
@@ -57181,7 +57353,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
             __pyx_v_met_constraints = 1;
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1698
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1701
  *                             f_x_low = f_low-self.train_min_gap_size
  *                             met_constraints = 1
  *                             if self.tight_phrases:             # <<<<<<<<<<<<<<
@@ -57191,7 +57363,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
             __pyx_t_9 = (__pyx_v_self->tight_phrases != 0);
             if (__pyx_t_9) {
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1699
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1702
  *                             met_constraints = 1
  *                             if self.tight_phrases:
  *                                 while f_x_low >= 0 and f_links_low[f_x_low] == -1:             # <<<<<<<<<<<<<<
@@ -57208,7 +57380,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                 }
                 if (!__pyx_t_18) break;
 
-                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1700
+                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1703
  *                             if self.tight_phrases:
  *                                 while f_x_low >= 0 and f_links_low[f_x_low] == -1:
  *                                     f_x_low = f_x_low - 1             # <<<<<<<<<<<<<<
@@ -57221,7 +57393,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
             }
             __pyx_L65:;
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1701
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1704
  *                                 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:             # <<<<<<<<<<<<<<
@@ -57237,7 +57409,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
             }
             if (__pyx_t_7) {
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1702
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1705
  *                                     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             # <<<<<<<<<<<<<<
@@ -57249,7 +57421,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
             }
             __pyx_L68:;
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1704
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1707
  *                                 met_constraints = 0
  * 
  *                             if (met_constraints and             # <<<<<<<<<<<<<<
@@ -57258,17 +57430,17 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
             if ((__pyx_v_met_constraints != 0)) {
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1705
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1708
  * 
  *                             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 = 1705; __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 = 1708; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_14);
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1709
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1712
  *                                             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,             # <<<<<<<<<<<<<<
@@ -57279,7 +57451,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
               __Pyx_DECREF(__pyx_t_14); __pyx_t_14 = 0;
               if (__pyx_t_7) {
 
-                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1711
+                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1714
  *                                             self.train_max_initial_size, self.train_max_initial_size,
  *                                             1, 1, 1, 1, 0, 1, 0) == 1) and
  *                                 ((not self.tight_phrases) or f_links_low[f_x_low] != -1) and             # <<<<<<<<<<<<<<
@@ -57295,17 +57467,17 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                 }
                 if (__pyx_t_8) {
 
-                  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1712
+                  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1715
  *                                             1, 1, 1, 1, 0, 1, 0) == 1) 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_14 = PyInt_FromLong(__pyx_v_f_low); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1712; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  __pyx_t_14 = PyInt_FromLong(__pyx_v_f_low); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1715; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   __Pyx_GOTREF(__pyx_t_14);
 
-                  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1716
+                  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1719
  *                                             -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,             # <<<<<<<<<<<<<<
@@ -57327,7 +57499,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
             }
             if (__pyx_t_7) {
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1718
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1721
  *                                             self.train_max_initial_size, self.train_max_initial_size,
  *                                             0, 0, 0, 0, 0, 0, 0)):
  *                                 fphr_arr._clear()             # <<<<<<<<<<<<<<
@@ -57336,7 +57508,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
               ((struct __pyx_vtabstruct_4cdec_2sa_3_sa_IntList *)__pyx_v_fphr_arr->__pyx_vtab)->_clear(__pyx_v_fphr_arr);
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1719
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1722
  *                                             0, 0, 0, 0, 0, 0, 0)):
  *                                 fphr_arr._clear()
  *                                 i = 1             # <<<<<<<<<<<<<<
@@ -57345,35 +57517,35 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
               __pyx_v_i = 1;
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1720
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1723
  *                                 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 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self->findexes), __pyx_n_s__reset); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1720; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_14 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self->findexes), __pyx_n_s__reset); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1723; __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 = 1720; __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 = 1723; __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;
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1721
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1724
  *                                 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_4cdec_2sa_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1721; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_1 = PyInt_FromLong(__pyx_f_4cdec_2sa_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1724; __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 = 1721; __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 = 1724; __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;
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1722
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1725
  *                                 self.findexes.reset()
  *                                 self.findexes.append(sym_setindex(self.category, i))
  *                                 fphr_arr._append(sym_setindex(self.category, i))             # <<<<<<<<<<<<<<
@@ -57382,7 +57554,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
               ((struct __pyx_vtabstruct_4cdec_2sa_3_sa_IntList *)__pyx_v_fphr_arr->__pyx_vtab)->_append(__pyx_v_fphr_arr, __pyx_f_4cdec_2sa_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i));
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1723
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1726
  *                                 self.findexes.append(sym_setindex(self.category, i))
  *                                 fphr_arr._append(sym_setindex(self.category, i))
  *                                 i = i+1             # <<<<<<<<<<<<<<
@@ -57391,27 +57563,27 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
               __pyx_v_i = (__pyx_v_i + 1);
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1724
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1727
  *                                 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 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self->findexes), __pyx_n_s__extend); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1724; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_14 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self->findexes), __pyx_n_s__extend); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1727; __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 = 1724; __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 = 1727; __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 = 1724; __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 = 1727; __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;
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1725
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1728
  *                                 i = i+1
  *                                 self.findexes.extend(self.findexes1)
  *                                 for j from 0 <= j < phrase.n:             # <<<<<<<<<<<<<<
@@ -57421,7 +57593,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
               __pyx_t_2 = __pyx_v_phrase->n;
               for (__pyx_v_j = 0; __pyx_v_j < __pyx_t_2; __pyx_v_j++) {
 
-                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1726
+                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1729
  *                                 self.findexes.extend(self.findexes1)
  *                                 for j from 0 <= j < phrase.n:
  *                                     if sym_isvar(phrase.syms[j]):             # <<<<<<<<<<<<<<
@@ -57431,7 +57603,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                 __pyx_t_7 = (__pyx_f_4cdec_2sa_3_sa_sym_isvar((__pyx_v_phrase->syms[__pyx_v_j])) != 0);
                 if (__pyx_t_7) {
 
-                  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1727
+                  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1730
  *                                 for j from 0 <= j < phrase.n:
  *                                     if sym_isvar(phrase.syms[j]):
  *                                         fphr_arr._append(sym_setindex(self.category, i))             # <<<<<<<<<<<<<<
@@ -57440,7 +57612,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
                   ((struct __pyx_vtabstruct_4cdec_2sa_3_sa_IntList *)__pyx_v_fphr_arr->__pyx_vtab)->_append(__pyx_v_fphr_arr, __pyx_f_4cdec_2sa_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i));
 
-                  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1728
+                  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1731
  *                                     if sym_isvar(phrase.syms[j]):
  *                                         fphr_arr._append(sym_setindex(self.category, i))
  *                                         i = i + 1             # <<<<<<<<<<<<<<
@@ -57452,7 +57624,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                 }
                 /*else*/ {
 
-                  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1730
+                  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1733
  *                                         i = i + 1
  *                                     else:
  *                                         fphr_arr._append(phrase.syms[j])             # <<<<<<<<<<<<<<
@@ -57464,7 +57636,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                 __pyx_L72:;
               }
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1731
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1734
  *                                     else:
  *                                         fphr_arr._append(phrase.syms[j])
  *                                 if f_back_high > f_high:             # <<<<<<<<<<<<<<
@@ -57474,7 +57646,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
               __pyx_t_7 = ((__pyx_v_f_back_high > __pyx_v_f_high) != 0);
               if (__pyx_t_7) {
 
-                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1732
+                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1735
  *                                         fphr_arr._append(phrase.syms[j])
  *                                 if f_back_high > f_high:
  *                                     fphr_arr._append(sym_setindex(self.category, i))             # <<<<<<<<<<<<<<
@@ -57483,16 +57655,16 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
                 ((struct __pyx_vtabstruct_4cdec_2sa_3_sa_IntList *)__pyx_v_fphr_arr->__pyx_vtab)->_append(__pyx_v_fphr_arr, __pyx_f_4cdec_2sa_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i));
 
-                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1733
+                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1736
  *                                 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_4cdec_2sa_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i)); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1733; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_15 = PyInt_FromLong(__pyx_f_4cdec_2sa_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i)); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1736; __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 = 1733; __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 = 1736; __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;
@@ -57500,55 +57672,55 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
               }
               __pyx_L73:;
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1734
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1737
  *                                     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 = 1734; __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 = 1737; __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_4cdec_2sa_3_sa_Phrase)), ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1734; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_15 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_Phrase)), ((PyObject *)__pyx_t_1), NULL); 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);
               __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
               __Pyx_DECREF_SET(__pyx_v_fphr, ((struct __pyx_obj_4cdec_2sa_3_sa_Phrase *)__pyx_t_15));
               __pyx_t_15 = 0;
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1737
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1740
  *                                 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_4cdec_2sa_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 = 1735; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_15 = ((struct __pyx_vtabstruct_4cdec_2sa_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 = 1738; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_15);
               __Pyx_XDECREF_SET(__pyx_v_phrase_list, __pyx_t_15);
               __pyx_t_15 = 0;
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1738
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1741
  *                                                     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 = 1738; __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 = 1741; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __pyx_t_7 = ((__pyx_t_13 > 0) != 0);
               if (__pyx_t_7) {
 
-                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1739
+                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1742
  *                                                     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 = 1739; __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 = 1742; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 if (unlikely(__pyx_t_13 == 0)) {
                   #ifdef WITH_THREAD
                   PyGILState_STATE __pyx_gilstate_save = PyGILState_Ensure();
@@ -57557,14 +57729,14 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                   #ifdef WITH_THREAD
                   PyGILState_Release(__pyx_gilstate_save);
                   #endif
-                  {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1739; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1742; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 }
                 __pyx_v_pair_count = (1.0 / __pyx_t_13);
                 goto __pyx_L74;
               }
               /*else*/ {
 
-                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1741
+                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1744
  *                                     pair_count = 1.0 / len(phrase_list)
  *                                 else:
  *                                     pair_count = 0             # <<<<<<<<<<<<<<
@@ -57575,7 +57747,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
               }
               __pyx_L74:;
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1742
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1745
  *                                 else:
  *                                     pair_count = 0
  *                                 for phrase2, eindexes in phrase_list:             # <<<<<<<<<<<<<<
@@ -57586,7 +57758,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                 __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 = 1742; __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 = 1745; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_15);
                 __pyx_t_16 = Py_TYPE(__pyx_t_15)->tp_iternext;
               }
@@ -57594,23 +57766,23 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                 if (!__pyx_t_16 && PyList_CheckExact(__pyx_t_15)) {
                   if (__pyx_t_13 >= PyList_GET_SIZE(__pyx_t_15)) break;
                   #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++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1742; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  __pyx_t_1 = PyList_GET_ITEM(__pyx_t_15, __pyx_t_13); __Pyx_INCREF(__pyx_t_1); __pyx_t_13++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1745; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   #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 = 1742; __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 = 1745; __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++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1742; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  __pyx_t_1 = PyTuple_GET_ITEM(__pyx_t_15, __pyx_t_13); __Pyx_INCREF(__pyx_t_1); __pyx_t_13++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1745; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   #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 = 1742; __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 = 1745; __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 = 1742; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                      else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1745; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                     }
                     break;
                   }
@@ -57626,7 +57798,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                   if (unlikely(size != 2)) {
                     if (size > 2) __Pyx_RaiseTooManyValuesError(2);
                     else if (size >= 0) __Pyx_RaiseNeedMoreValuesError(size);
-                    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1742; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1745; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   }
                   #if CYTHON_COMPILING_IN_CPYTHON
                   if (likely(PyTuple_CheckExact(sequence))) {
@@ -57639,16 +57811,16 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                   __Pyx_INCREF(__pyx_t_14);
                   __Pyx_INCREF(__pyx_t_3);
                   #else
-                  __pyx_t_14 = PySequence_ITEM(sequence, 0); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1742; __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 = 1745; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   __Pyx_GOTREF(__pyx_t_14);
-                  __pyx_t_3 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1742; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  __pyx_t_3 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1745; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   __Pyx_GOTREF(__pyx_t_3);
                   #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 = 1742; __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 = 1745; __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;
@@ -57656,7 +57828,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                   __Pyx_GOTREF(__pyx_t_14);
                   index = 1; __pyx_t_3 = __pyx_t_17(__pyx_t_10); if (unlikely(!__pyx_t_3)) goto __pyx_L77_unpacking_failed;
                   __Pyx_GOTREF(__pyx_t_3);
-                  if (__Pyx_IternextUnpackEndCheck(__pyx_t_17(__pyx_t_10), 2) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1742; __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 = 1745; __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;
@@ -57664,7 +57836,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                   __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 = 1742; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1745; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   __pyx_L78_unpacking_done:;
                 }
                 __Pyx_XDECREF_SET(__pyx_v_phrase2, __pyx_t_14);
@@ -57672,7 +57844,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                 __Pyx_XDECREF_SET(__pyx_v_eindexes, __pyx_t_3);
                 __pyx_t_3 = 0;
 
-                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1743
+                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1746
  *                                     pair_count = 0
  *                                 for phrase2, eindexes in phrase_list:
  *                                     als2 = self.create_alignments(sent_links,num_links,self.findexes,eindexes)             # <<<<<<<<<<<<<<
@@ -57681,31 +57853,31 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
                 __pyx_t_1 = ((PyObject *)__pyx_v_self->findexes);
                 __Pyx_INCREF(__pyx_t_1);
-                if (!(likely(((__pyx_v_eindexes) == Py_None) || likely(__Pyx_TypeTest(__pyx_v_eindexes, __pyx_ptype_4cdec_2sa_3_sa_IntList))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1743; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-                __pyx_t_3 = ((PyObject *)((struct __pyx_vtabstruct_4cdec_2sa_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->create_alignments(__pyx_v_self, __pyx_v_sent_links, __pyx_v_num_links, ((struct __pyx_obj_4cdec_2sa_3_sa_IntList *)__pyx_t_1), ((struct __pyx_obj_4cdec_2sa_3_sa_IntList *)__pyx_v_eindexes))); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1743; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                if (!(likely(((__pyx_v_eindexes) == Py_None) || likely(__Pyx_TypeTest(__pyx_v_eindexes, __pyx_ptype_4cdec_2sa_3_sa_IntList))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1746; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_3 = ((PyObject *)((struct __pyx_vtabstruct_4cdec_2sa_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->create_alignments(__pyx_v_self, __pyx_v_sent_links, __pyx_v_num_links, ((struct __pyx_obj_4cdec_2sa_3_sa_IntList *)__pyx_t_1), ((struct __pyx_obj_4cdec_2sa_3_sa_IntList *)__pyx_v_eindexes))); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1746; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_3);
                 __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
                 __Pyx_XDECREF_SET(__pyx_v_als2, ((struct __pyx_obj_4cdec_2sa_3_sa_IntList *)__pyx_t_3));
                 __pyx_t_3 = 0;
 
-                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1744
+                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1747
  *                                 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_3 = PyFloat_FromDouble(__pyx_v_pair_count); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1744; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_3 = PyFloat_FromDouble(__pyx_v_pair_count); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1747; __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 = 1744; __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 = 1747; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_1);
                 __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 = 1744; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __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 = 1747; __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 = 1744; __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 = 1747; __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));
@@ -57719,7 +57891,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                 __Pyx_GIVEREF(__pyx_t_14);
                 __pyx_t_3 = 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 = 1744; __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 = 1747; __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;
@@ -57732,7 +57904,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
           }
           __pyx_L64:;
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1746
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1749
  *                                     extracts.append((fphr, phrase2, pair_count, tuple(als2)))
  * 
  *                         if (f_back_high == f_high and             # <<<<<<<<<<<<<<
@@ -57742,7 +57914,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
           __pyx_t_7 = ((__pyx_v_f_back_high == __pyx_v_f_high) != 0);
           if (__pyx_t_7) {
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1747
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1750
  * 
  *                         if (f_back_high == f_high and
  *                             f_sent_len - f_high >= self.train_min_gap_size and             # <<<<<<<<<<<<<<
@@ -57752,7 +57924,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
             __pyx_t_8 = (((__pyx_v_f_sent_len - __pyx_v_f_high) >= __pyx_v_self->train_min_gap_size) != 0);
             if (__pyx_t_8) {
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1748
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1751
  *                         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))):             # <<<<<<<<<<<<<<
@@ -57782,7 +57954,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
           }
           if (__pyx_t_8) {
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1749
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1752
  *                             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             # <<<<<<<<<<<<<<
@@ -57791,7 +57963,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
             __pyx_v_f_x_high = (__pyx_v_f_high + __pyx_v_self->train_min_gap_size);
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1750
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1753
  *                             ((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             # <<<<<<<<<<<<<<
@@ -57800,7 +57972,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
             __pyx_v_met_constraints = 1;
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1751
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1754
  *                             f_x_high = f_high+self.train_min_gap_size
  *                             met_constraints = 1
  *                             if self.tight_phrases:             # <<<<<<<<<<<<<<
@@ -57810,7 +57982,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
             __pyx_t_8 = (__pyx_v_self->tight_phrases != 0);
             if (__pyx_t_8) {
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1752
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1755
  *                             met_constraints = 1
  *                             if self.tight_phrases:
  *                                 while f_x_high <= f_sent_len and f_links_low[f_x_high-1] == -1:             # <<<<<<<<<<<<<<
@@ -57827,7 +57999,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                 }
                 if (!__pyx_t_18) break;
 
-                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1753
+                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1756
  *                             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             # <<<<<<<<<<<<<<
@@ -57840,7 +58012,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
             }
             __pyx_L80:;
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1754
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1757
  *                                 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:             # <<<<<<<<<<<<<<
@@ -57856,7 +58028,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
             }
             if (__pyx_t_7) {
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1755
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1758
  *                                     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             # <<<<<<<<<<<<<<
@@ -57868,7 +58040,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
             }
             __pyx_L83:;
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1757
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1760
  *                                 met_constraints = 0
  * 
  *                             if (met_constraints and             # <<<<<<<<<<<<<<
@@ -57877,17 +58049,17 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
             if ((__pyx_v_met_constraints != 0)) {
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1758
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1761
  * 
  *                             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 = 1758; __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 = 1761; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_15);
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1762
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1765
  *                                             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,             # <<<<<<<<<<<<<<
@@ -57897,7 +58069,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
               if ((((struct __pyx_vtabstruct_4cdec_2sa_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) != 0)) {
                 __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
 
-                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1764
+                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1767
  *                                             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             # <<<<<<<<<<<<<<
@@ -57913,17 +58085,17 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                 }
                 if (__pyx_t_8) {
 
-                  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1765
+                  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1768
  *                                             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 = 1765; __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 = 1768; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   __Pyx_GOTREF(__pyx_t_14);
 
-                  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1770
+                  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1773
  *                                             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,             # <<<<<<<<<<<<<<
@@ -57946,7 +58118,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
             }
             if (__pyx_t_7) {
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1772
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1775
  *                                             self.train_max_initial_size, self.train_max_initial_size,
  *                                             0, 0, 0, 0, 0, 0, 0)):
  *                                 fphr_arr._clear()             # <<<<<<<<<<<<<<
@@ -57955,7 +58127,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
               ((struct __pyx_vtabstruct_4cdec_2sa_3_sa_IntList *)__pyx_v_fphr_arr->__pyx_vtab)->_clear(__pyx_v_fphr_arr);
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1773
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1776
  *                                             0, 0, 0, 0, 0, 0, 0)):
  *                                 fphr_arr._clear()
  *                                 i = 1             # <<<<<<<<<<<<<<
@@ -57964,21 +58136,21 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
               __pyx_v_i = 1;
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1774
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1777
  *                                 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 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self->findexes), __pyx_n_s__reset); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1774; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_15 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self->findexes), __pyx_n_s__reset); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1777; __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 = 1774; __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 = 1777; __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;
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1775
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1778
  *                                 i = 1
  *                                 self.findexes.reset()
  *                                 if f_back_low < f_low:             # <<<<<<<<<<<<<<
@@ -57988,7 +58160,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
               __pyx_t_7 = ((__pyx_v_f_back_low < __pyx_v_f_low) != 0);
               if (__pyx_t_7) {
 
-                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1776
+                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1779
  *                                 self.findexes.reset()
  *                                 if f_back_low < f_low:
  *                                     fphr_arr._append(sym_setindex(self.category, i))             # <<<<<<<<<<<<<<
@@ -57997,7 +58169,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
                 ((struct __pyx_vtabstruct_4cdec_2sa_3_sa_IntList *)__pyx_v_fphr_arr->__pyx_vtab)->_append(__pyx_v_fphr_arr, __pyx_f_4cdec_2sa_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i));
 
-                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1777
+                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1780
  *                                 if f_back_low < f_low:
  *                                     fphr_arr._append(sym_setindex(self.category, i))
  *                                     i = i+1             # <<<<<<<<<<<<<<
@@ -58006,16 +58178,16 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
                 __pyx_v_i = (__pyx_v_i + 1);
 
-                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1778
+                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1781
  *                                     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_4cdec_2sa_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i)); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1778; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_14 = PyInt_FromLong(__pyx_f_4cdec_2sa_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i)); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1781; __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 = 1778; __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 = 1781; __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;
@@ -58023,27 +58195,27 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
               }
               __pyx_L85:;
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1779
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1782
  *                                     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 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self->findexes), __pyx_n_s__extend); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1779; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_15 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self->findexes), __pyx_n_s__extend); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1782; __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 = 1779; __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 = 1782; __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 = 1779; __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 = 1782; __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;
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1780
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1783
  *                                     self.findexes.append(sym_setindex(self.category, i))
  *                                 self.findexes.extend(self.findexes1)
  *                                 for j from 0 <= j < phrase.n:             # <<<<<<<<<<<<<<
@@ -58053,7 +58225,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
               __pyx_t_2 = __pyx_v_phrase->n;
               for (__pyx_v_j = 0; __pyx_v_j < __pyx_t_2; __pyx_v_j++) {
 
-                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1781
+                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1784
  *                                 self.findexes.extend(self.findexes1)
  *                                 for j from 0 <= j < phrase.n:
  *                                     if sym_isvar(phrase.syms[j]):             # <<<<<<<<<<<<<<
@@ -58063,7 +58235,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                 __pyx_t_7 = (__pyx_f_4cdec_2sa_3_sa_sym_isvar((__pyx_v_phrase->syms[__pyx_v_j])) != 0);
                 if (__pyx_t_7) {
 
-                  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1782
+                  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1785
  *                                 for j from 0 <= j < phrase.n:
  *                                     if sym_isvar(phrase.syms[j]):
  *                                         fphr_arr._append(sym_setindex(self.category, i))             # <<<<<<<<<<<<<<
@@ -58072,7 +58244,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
                   ((struct __pyx_vtabstruct_4cdec_2sa_3_sa_IntList *)__pyx_v_fphr_arr->__pyx_vtab)->_append(__pyx_v_fphr_arr, __pyx_f_4cdec_2sa_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i));
 
-                  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1783
+                  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1786
  *                                     if sym_isvar(phrase.syms[j]):
  *                                         fphr_arr._append(sym_setindex(self.category, i))
  *                                         i = i + 1             # <<<<<<<<<<<<<<
@@ -58084,7 +58256,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                 }
                 /*else*/ {
 
-                  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1785
+                  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1788
  *                                         i = i + 1
  *                                     else:
  *                                         fphr_arr._append(phrase.syms[j])             # <<<<<<<<<<<<<<
@@ -58096,7 +58268,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                 __pyx_L88:;
               }
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1786
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1789
  *                                     else:
  *                                         fphr_arr._append(phrase.syms[j])
  *                                 fphr_arr._append(sym_setindex(self.category, i))             # <<<<<<<<<<<<<<
@@ -58105,69 +58277,69 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
               ((struct __pyx_vtabstruct_4cdec_2sa_3_sa_IntList *)__pyx_v_fphr_arr->__pyx_vtab)->_append(__pyx_v_fphr_arr, __pyx_f_4cdec_2sa_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i));
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1787
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1790
  *                                         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_4cdec_2sa_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1787; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_1 = PyInt_FromLong(__pyx_f_4cdec_2sa_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1790; __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 = 1787; __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 = 1790; __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;
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1788
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1791
  *                                 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 = 1788; __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 = 1791; __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_4cdec_2sa_3_sa_Phrase)), ((PyObject *)__pyx_t_14), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1788; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_Phrase)), ((PyObject *)__pyx_t_14), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1791; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_1);
               __Pyx_DECREF(((PyObject *)__pyx_t_14)); __pyx_t_14 = 0;
               __Pyx_DECREF_SET(__pyx_v_fphr, ((struct __pyx_obj_4cdec_2sa_3_sa_Phrase *)__pyx_t_1));
               __pyx_t_1 = 0;
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1791
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1794
  *                                 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_4cdec_2sa_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 = 1789; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_1 = ((struct __pyx_vtabstruct_4cdec_2sa_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 = 1792; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_1);
               __Pyx_XDECREF_SET(__pyx_v_phrase_list, __pyx_t_1);
               __pyx_t_1 = 0;
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1792
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1795
  *                                                     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 = 1792; __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 = 1795; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __pyx_t_7 = ((__pyx_t_13 > 0) != 0);
               if (__pyx_t_7) {
 
-                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1793
+                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1796
  *                                                     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 = 1793; __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 = 1796; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 if (unlikely(__pyx_t_13 == 0)) {
                   #ifdef WITH_THREAD
                   PyGILState_STATE __pyx_gilstate_save = PyGILState_Ensure();
@@ -58176,14 +58348,14 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                   #ifdef WITH_THREAD
                   PyGILState_Release(__pyx_gilstate_save);
                   #endif
-                  {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1793; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1796; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 }
                 __pyx_v_pair_count = (1.0 / __pyx_t_13);
                 goto __pyx_L89;
               }
               /*else*/ {
 
-                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1795
+                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1798
  *                                     pair_count = 1.0 / len(phrase_list)
  *                                 else:
  *                                     pair_count = 0             # <<<<<<<<<<<<<<
@@ -58194,7 +58366,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
               }
               __pyx_L89:;
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1796
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1799
  *                                 else:
  *                                     pair_count = 0
  *                                 for phrase2, eindexes in phrase_list:             # <<<<<<<<<<<<<<
@@ -58205,7 +58377,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                 __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 = 1796; __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 = 1799; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_1);
                 __pyx_t_16 = Py_TYPE(__pyx_t_1)->tp_iternext;
               }
@@ -58213,23 +58385,23 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                 if (!__pyx_t_16 && PyList_CheckExact(__pyx_t_1)) {
                   if (__pyx_t_13 >= PyList_GET_SIZE(__pyx_t_1)) break;
                   #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++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1796; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  __pyx_t_14 = PyList_GET_ITEM(__pyx_t_1, __pyx_t_13); __Pyx_INCREF(__pyx_t_14); __pyx_t_13++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1799; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   #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 = 1796; __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 = 1799; __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++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1796; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  __pyx_t_14 = PyTuple_GET_ITEM(__pyx_t_1, __pyx_t_13); __Pyx_INCREF(__pyx_t_14); __pyx_t_13++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1799; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   #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 = 1796; __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 = 1799; __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 = 1796; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                      else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1799; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                     }
                     break;
                   }
@@ -58245,7 +58417,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                   if (unlikely(size != 2)) {
                     if (size > 2) __Pyx_RaiseTooManyValuesError(2);
                     else if (size >= 0) __Pyx_RaiseNeedMoreValuesError(size);
-                    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1796; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1799; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   }
                   #if CYTHON_COMPILING_IN_CPYTHON
                   if (likely(PyTuple_CheckExact(sequence))) {
@@ -58258,16 +58430,16 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                   __Pyx_INCREF(__pyx_t_15);
                   __Pyx_INCREF(__pyx_t_3);
                   #else
-                  __pyx_t_15 = PySequence_ITEM(sequence, 0); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1796; __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 = 1799; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   __Pyx_GOTREF(__pyx_t_15);
-                  __pyx_t_3 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1796; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  __pyx_t_3 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1799; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   __Pyx_GOTREF(__pyx_t_3);
                   #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 = 1796; __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 = 1799; __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;
@@ -58275,7 +58447,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                   __Pyx_GOTREF(__pyx_t_15);
                   index = 1; __pyx_t_3 = __pyx_t_17(__pyx_t_10); if (unlikely(!__pyx_t_3)) goto __pyx_L92_unpacking_failed;
                   __Pyx_GOTREF(__pyx_t_3);
-                  if (__Pyx_IternextUnpackEndCheck(__pyx_t_17(__pyx_t_10), 2) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1796; __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 = 1799; __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;
@@ -58283,7 +58455,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                   __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 = 1796; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1799; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   __pyx_L93_unpacking_done:;
                 }
                 __Pyx_XDECREF_SET(__pyx_v_phrase2, __pyx_t_15);
@@ -58291,7 +58463,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                 __Pyx_XDECREF_SET(__pyx_v_eindexes, __pyx_t_3);
                 __pyx_t_3 = 0;
 
-                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1797
+                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1800
  *                                     pair_count = 0
  *                                 for phrase2, eindexes in phrase_list:
  *                                     als3 = self.create_alignments(sent_links,num_links,self.findexes,eindexes)             # <<<<<<<<<<<<<<
@@ -58300,31 +58472,31 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
                 __pyx_t_14 = ((PyObject *)__pyx_v_self->findexes);
                 __Pyx_INCREF(__pyx_t_14);
-                if (!(likely(((__pyx_v_eindexes) == Py_None) || likely(__Pyx_TypeTest(__pyx_v_eindexes, __pyx_ptype_4cdec_2sa_3_sa_IntList))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1797; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-                __pyx_t_3 = ((PyObject *)((struct __pyx_vtabstruct_4cdec_2sa_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->create_alignments(__pyx_v_self, __pyx_v_sent_links, __pyx_v_num_links, ((struct __pyx_obj_4cdec_2sa_3_sa_IntList *)__pyx_t_14), ((struct __pyx_obj_4cdec_2sa_3_sa_IntList *)__pyx_v_eindexes))); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1797; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                if (!(likely(((__pyx_v_eindexes) == Py_None) || likely(__Pyx_TypeTest(__pyx_v_eindexes, __pyx_ptype_4cdec_2sa_3_sa_IntList))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1800; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_3 = ((PyObject *)((struct __pyx_vtabstruct_4cdec_2sa_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->create_alignments(__pyx_v_self, __pyx_v_sent_links, __pyx_v_num_links, ((struct __pyx_obj_4cdec_2sa_3_sa_IntList *)__pyx_t_14), ((struct __pyx_obj_4cdec_2sa_3_sa_IntList *)__pyx_v_eindexes))); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1800; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_3);
                 __Pyx_DECREF(__pyx_t_14); __pyx_t_14 = 0;
                 __Pyx_XDECREF_SET(__pyx_v_als3, ((struct __pyx_obj_4cdec_2sa_3_sa_IntList *)__pyx_t_3));
                 __pyx_t_3 = 0;
 
-                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1798
+                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1801
  *                                 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_3 = PyFloat_FromDouble(__pyx_v_pair_count); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1798; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_3 = PyFloat_FromDouble(__pyx_v_pair_count); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1801; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_3);
-                __pyx_t_14 = PyTuple_New(1); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1798; __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 = 1801; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_14);
                 __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 = 1798; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __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 = 1801; __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 = 1798; __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 = 1801; __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));
@@ -58338,7 +58510,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                 __Pyx_GIVEREF(__pyx_t_15);
                 __pyx_t_3 = 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 = 1798; __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 = 1801; __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;
@@ -58351,7 +58523,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
           }
           __pyx_L79:;
 
-          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1799
+          /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1802
  *                                     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             # <<<<<<<<<<<<<<
@@ -58361,7 +58533,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
           __pyx_t_7 = ((__pyx_v_num_gaps < (__pyx_v_self->max_nonterminals - 1)) != 0);
           if (__pyx_t_7) {
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1800
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1803
  *                                     extracts.append((fphr, phrase2, pair_count, tuple(als3)))
  *                         if (num_gaps < self.max_nonterminals - 1 and
  *                             phrase_len+1 < self.max_length and             # <<<<<<<<<<<<<<
@@ -58371,7 +58543,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
             __pyx_t_8 = (((__pyx_v_phrase_len + 1) < __pyx_v_self->max_length) != 0);
             if (__pyx_t_8) {
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1801
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1804
  *                         if (num_gaps < self.max_nonterminals - 1 and
  *                             phrase_len+1 < self.max_length and
  *                             f_back_high == f_high and             # <<<<<<<<<<<<<<
@@ -58381,7 +58553,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
               __pyx_t_18 = ((__pyx_v_f_back_high == __pyx_v_f_high) != 0);
               if (__pyx_t_18) {
 
-                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1802
+                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1805
  *                             phrase_len+1 < self.max_length and
  *                             f_back_high == f_high and
  *                             f_back_low == f_low and             # <<<<<<<<<<<<<<
@@ -58391,7 +58563,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                 __pyx_t_9 = ((__pyx_v_f_back_low == __pyx_v_f_low) != 0);
                 if (__pyx_t_9) {
 
-                  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1803
+                  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1806
  *                             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             # <<<<<<<<<<<<<<
@@ -58401,7 +58573,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                   __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) != 0);
                   if (__pyx_t_19) {
 
-                    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1804
+                    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1807
  *                             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             # <<<<<<<<<<<<<<
@@ -58411,7 +58583,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                     __pyx_t_20 = ((__pyx_v_f_low >= __pyx_v_self->train_min_gap_size) != 0);
                     if (__pyx_t_20) {
 
-                      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1805
+                      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1808
  *                             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             # <<<<<<<<<<<<<<
@@ -58421,7 +58593,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                       __pyx_t_21 = ((__pyx_v_f_high <= (__pyx_v_f_sent_len - __pyx_v_self->train_min_gap_size)) != 0);
                       if (__pyx_t_21) {
 
-                        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1806
+                        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1809
  *                             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))):             # <<<<<<<<<<<<<<
@@ -58471,7 +58643,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
           }
           if (__pyx_t_8) {
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1808
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1811
  *                             ((not self.tight_phrases) or (f_links_low[f_low-1] != -1 and f_links_low[f_high] != -1))):
  * 
  *                             met_constraints = 1             # <<<<<<<<<<<<<<
@@ -58480,7 +58652,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
             __pyx_v_met_constraints = 1;
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1809
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1812
  * 
  *                             met_constraints = 1
  *                             f_x_low = f_low-self.train_min_gap_size             # <<<<<<<<<<<<<<
@@ -58489,7 +58661,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
             __pyx_v_f_x_low = (__pyx_v_f_low - __pyx_v_self->train_min_gap_size);
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1810
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1813
  *                             met_constraints = 1
  *                             f_x_low = f_low-self.train_min_gap_size
  *                             if self.tight_phrases:             # <<<<<<<<<<<<<<
@@ -58499,7 +58671,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
             __pyx_t_8 = (__pyx_v_self->tight_phrases != 0);
             if (__pyx_t_8) {
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1811
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1814
  *                             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:             # <<<<<<<<<<<<<<
@@ -58516,7 +58688,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                 }
                 if (!__pyx_t_18) break;
 
-                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1812
+                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1815
  *                             if self.tight_phrases:
  *                                 while f_x_low >= 0 and f_links_low[f_x_low] == -1:
  *                                     f_x_low = f_x_low - 1             # <<<<<<<<<<<<<<
@@ -58529,7 +58701,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
             }
             __pyx_L95:;
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1813
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1816
  *                                 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:             # <<<<<<<<<<<<<<
@@ -58539,7 +58711,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
             __pyx_t_18 = ((__pyx_v_f_x_low < 0) != 0);
             if (__pyx_t_18) {
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1814
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1817
  *                                     f_x_low = f_x_low - 1
  *                             if f_x_low < 0:
  *                                 met_constraints = 0             # <<<<<<<<<<<<<<
@@ -58551,7 +58723,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
             }
             __pyx_L98:;
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1816
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1819
  *                                 met_constraints = 0
  * 
  *                             f_x_high = f_high+self.train_min_gap_size             # <<<<<<<<<<<<<<
@@ -58560,7 +58732,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
             __pyx_v_f_x_high = (__pyx_v_f_high + __pyx_v_self->train_min_gap_size);
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1817
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1820
  * 
  *                             f_x_high = f_high+self.train_min_gap_size
  *                             if self.tight_phrases:             # <<<<<<<<<<<<<<
@@ -58570,7 +58742,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
             __pyx_t_18 = (__pyx_v_self->tight_phrases != 0);
             if (__pyx_t_18) {
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1818
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1821
  *                             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:             # <<<<<<<<<<<<<<
@@ -58587,7 +58759,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                 }
                 if (!__pyx_t_7) break;
 
-                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1819
+                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1822
  *                             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             # <<<<<<<<<<<<<<
@@ -58600,7 +58772,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
             }
             __pyx_L99:;
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1820
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1823
  *                                 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:             # <<<<<<<<<<<<<<
@@ -58616,7 +58788,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
             }
             if (__pyx_t_8) {
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1821
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1824
  *                                     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             # <<<<<<<<<<<<<<
@@ -58628,7 +58800,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
             }
             __pyx_L102:;
 
-            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1823
+            /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1826
  *                                 met_constraints = 0
  * 
  *                             if (met_constraints and             # <<<<<<<<<<<<<<
@@ -58637,17 +58809,17 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
             if ((__pyx_v_met_constraints != 0)) {
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1824
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1827
  * 
  *                             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 = 1824; __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 = 1827; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_1);
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1828
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1831
  *                                                 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,             # <<<<<<<<<<<<<<
@@ -58658,7 +58830,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
               __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
               if (__pyx_t_8) {
 
-                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1830
+                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1833
  *                                                 self.train_max_initial_size, self.train_max_initial_size,
  *                                                 1, 1, 2, 1, 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             # <<<<<<<<<<<<<<
@@ -58680,17 +58852,17 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                 }
                 if (__pyx_t_18) {
 
-                  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1831
+                  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1834
  *                                                 1, 1, 2, 1, 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_1 = PyInt_FromLong(__pyx_v_f_low); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1831; __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 = 1834; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   __Pyx_GOTREF(__pyx_t_1);
 
-                  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1835
+                  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1838
  *                                                 -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,             # <<<<<<<<<<<<<<
@@ -58701,17 +58873,17 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
                   if (__pyx_t_7) {
 
-                    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1837
+                    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1840
  *                                                 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_1 = PyInt_FromLong(__pyx_v_f_x_high); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1837; __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 = 1840; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                     __Pyx_GOTREF(__pyx_t_1);
 
-                    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1842
+                    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1845
  *                                                 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,             # <<<<<<<<<<<<<<
@@ -58738,7 +58910,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
             }
             if (__pyx_t_8) {
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1844
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1847
  *                                                 self.train_max_initial_size, self.train_max_initial_size,
  *                                                 0, 0, 0, 0, 0, 0, 0)):
  *                                 fphr_arr._clear()             # <<<<<<<<<<<<<<
@@ -58747,7 +58919,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
               ((struct __pyx_vtabstruct_4cdec_2sa_3_sa_IntList *)__pyx_v_fphr_arr->__pyx_vtab)->_clear(__pyx_v_fphr_arr);
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1845
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1848
  *                                                 0, 0, 0, 0, 0, 0, 0)):
  *                                 fphr_arr._clear()
  *                                 i = 1             # <<<<<<<<<<<<<<
@@ -58756,35 +58928,35 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
               __pyx_v_i = 1;
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1846
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1849
  *                                 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 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self->findexes), __pyx_n_s__reset); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1846; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_1 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self->findexes), __pyx_n_s__reset); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1849; __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 = 1846; __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 = 1849; __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;
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1847
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1850
  *                                 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_4cdec_2sa_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i)); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1847; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_15 = PyInt_FromLong(__pyx_f_4cdec_2sa_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i)); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1850; __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 = 1847; __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 = 1850; __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;
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1848
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1851
  *                                 self.findexes.reset()
  *                                 self.findexes.append(sym_setindex(self.category, i))
  *                                 fphr_arr._append(sym_setindex(self.category, i))             # <<<<<<<<<<<<<<
@@ -58793,7 +58965,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
               ((struct __pyx_vtabstruct_4cdec_2sa_3_sa_IntList *)__pyx_v_fphr_arr->__pyx_vtab)->_append(__pyx_v_fphr_arr, __pyx_f_4cdec_2sa_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i));
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1849
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1852
  *                                 self.findexes.append(sym_setindex(self.category, i))
  *                                 fphr_arr._append(sym_setindex(self.category, i))
  *                                 i = i+1             # <<<<<<<<<<<<<<
@@ -58802,27 +58974,27 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
               __pyx_v_i = (__pyx_v_i + 1);
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1850
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1853
  *                                 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 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self->findexes), __pyx_n_s__extend); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1850; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_1 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self->findexes), __pyx_n_s__extend); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1853; __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 = 1850; __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 = 1853; __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 = 1850; __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 = 1853; __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;
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1851
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1854
  *                                 i = i+1
  *                                 self.findexes.extend(self.findexes1)
  *                                 for j from 0 <= j < phrase.n:             # <<<<<<<<<<<<<<
@@ -58832,7 +59004,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
               __pyx_t_2 = __pyx_v_phrase->n;
               for (__pyx_v_j = 0; __pyx_v_j < __pyx_t_2; __pyx_v_j++) {
 
-                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1852
+                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1855
  *                                 self.findexes.extend(self.findexes1)
  *                                 for j from 0 <= j < phrase.n:
  *                                     if sym_isvar(phrase.syms[j]):             # <<<<<<<<<<<<<<
@@ -58842,7 +59014,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                 __pyx_t_8 = (__pyx_f_4cdec_2sa_3_sa_sym_isvar((__pyx_v_phrase->syms[__pyx_v_j])) != 0);
                 if (__pyx_t_8) {
 
-                  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1853
+                  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1856
  *                                 for j from 0 <= j < phrase.n:
  *                                     if sym_isvar(phrase.syms[j]):
  *                                         fphr_arr._append(sym_setindex(self.category, i))             # <<<<<<<<<<<<<<
@@ -58851,7 +59023,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
                   ((struct __pyx_vtabstruct_4cdec_2sa_3_sa_IntList *)__pyx_v_fphr_arr->__pyx_vtab)->_append(__pyx_v_fphr_arr, __pyx_f_4cdec_2sa_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i));
 
-                  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1854
+                  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1857
  *                                     if sym_isvar(phrase.syms[j]):
  *                                         fphr_arr._append(sym_setindex(self.category, i))
  *                                         i = i + 1             # <<<<<<<<<<<<<<
@@ -58863,7 +59035,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                 }
                 /*else*/ {
 
-                  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1856
+                  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1859
  *                                         i = i + 1
  *                                     else:
  *                                         fphr_arr._append(phrase.syms[j])             # <<<<<<<<<<<<<<
@@ -58875,7 +59047,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                 __pyx_L106:;
               }
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1857
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1860
  *                                     else:
  *                                         fphr_arr._append(phrase.syms[j])
  *                                 fphr_arr._append(sym_setindex(self.category, i))             # <<<<<<<<<<<<<<
@@ -58884,69 +59056,69 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
               ((struct __pyx_vtabstruct_4cdec_2sa_3_sa_IntList *)__pyx_v_fphr_arr->__pyx_vtab)->_append(__pyx_v_fphr_arr, __pyx_f_4cdec_2sa_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i));
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1858
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1861
  *                                         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_4cdec_2sa_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i)); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1858; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_14 = PyInt_FromLong(__pyx_f_4cdec_2sa_3_sa_sym_setindex(__pyx_v_self->category, __pyx_v_i)); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1861; __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 = 1858; __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 = 1861; __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;
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1859
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1862
  *                                 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 = 1859; __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 = 1862; __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_4cdec_2sa_3_sa_Phrase)), ((PyObject *)__pyx_t_15), NULL); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1859; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_14 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_Phrase)), ((PyObject *)__pyx_t_15), NULL); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1862; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_14);
               __Pyx_DECREF(((PyObject *)__pyx_t_15)); __pyx_t_15 = 0;
               __Pyx_DECREF_SET(__pyx_v_fphr, ((struct __pyx_obj_4cdec_2sa_3_sa_Phrase *)__pyx_t_14));
               __pyx_t_14 = 0;
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1862
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1865
  *                                 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_4cdec_2sa_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 = 1860; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              __pyx_t_14 = ((struct __pyx_vtabstruct_4cdec_2sa_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 = 1863; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __Pyx_GOTREF(__pyx_t_14);
               __Pyx_XDECREF_SET(__pyx_v_phrase_list, __pyx_t_14);
               __pyx_t_14 = 0;
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1863
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1866
  *                                                     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 = 1863; __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 = 1866; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               __pyx_t_8 = ((__pyx_t_13 > 0) != 0);
               if (__pyx_t_8) {
 
-                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1864
+                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1867
  *                                                     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 = 1864; __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 = 1867; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 if (unlikely(__pyx_t_13 == 0)) {
                   #ifdef WITH_THREAD
                   PyGILState_STATE __pyx_gilstate_save = PyGILState_Ensure();
@@ -58955,14 +59127,14 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                   #ifdef WITH_THREAD
                   PyGILState_Release(__pyx_gilstate_save);
                   #endif
-                  {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1864; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1867; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 }
                 __pyx_v_pair_count = (1.0 / __pyx_t_13);
                 goto __pyx_L107;
               }
               /*else*/ {
 
-                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1866
+                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1869
  *                                     pair_count = 1.0 / len(phrase_list)
  *                                 else:
  *                                     pair_count = 0             # <<<<<<<<<<<<<<
@@ -58973,7 +59145,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
               }
               __pyx_L107:;
 
-              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1867
+              /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1870
  *                                 else:
  *                                     pair_count = 0
  *                                 for phrase2, eindexes in phrase_list:             # <<<<<<<<<<<<<<
@@ -58984,7 +59156,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                 __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 = 1867; __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 = 1870; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_14);
                 __pyx_t_16 = Py_TYPE(__pyx_t_14)->tp_iternext;
               }
@@ -58992,23 +59164,23 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                 if (!__pyx_t_16 && PyList_CheckExact(__pyx_t_14)) {
                   if (__pyx_t_13 >= PyList_GET_SIZE(__pyx_t_14)) break;
                   #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++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1867; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  __pyx_t_15 = PyList_GET_ITEM(__pyx_t_14, __pyx_t_13); __Pyx_INCREF(__pyx_t_15); __pyx_t_13++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1870; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   #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 = 1867; __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 = 1870; __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++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1867; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  __pyx_t_15 = PyTuple_GET_ITEM(__pyx_t_14, __pyx_t_13); __Pyx_INCREF(__pyx_t_15); __pyx_t_13++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1870; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   #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 = 1867; __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 = 1870; __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 = 1867; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                      else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1870; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                     }
                     break;
                   }
@@ -59024,7 +59196,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                   if (unlikely(size != 2)) {
                     if (size > 2) __Pyx_RaiseTooManyValuesError(2);
                     else if (size >= 0) __Pyx_RaiseNeedMoreValuesError(size);
-                    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1867; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1870; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   }
                   #if CYTHON_COMPILING_IN_CPYTHON
                   if (likely(PyTuple_CheckExact(sequence))) {
@@ -59037,16 +59209,16 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                   __Pyx_INCREF(__pyx_t_1);
                   __Pyx_INCREF(__pyx_t_3);
                   #else
-                  __pyx_t_1 = PySequence_ITEM(sequence, 0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1867; __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 = 1870; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   __Pyx_GOTREF(__pyx_t_1);
-                  __pyx_t_3 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1867; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  __pyx_t_3 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1870; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   __Pyx_GOTREF(__pyx_t_3);
                   #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 = 1867; __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 = 1870; __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;
@@ -59054,7 +59226,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                   __Pyx_GOTREF(__pyx_t_1);
                   index = 1; __pyx_t_3 = __pyx_t_17(__pyx_t_10); if (unlikely(!__pyx_t_3)) goto __pyx_L110_unpacking_failed;
                   __Pyx_GOTREF(__pyx_t_3);
-                  if (__Pyx_IternextUnpackEndCheck(__pyx_t_17(__pyx_t_10), 2) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1867; __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 = 1870; __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;
@@ -59062,7 +59234,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                   __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 = 1867; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                  {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1870; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                   __pyx_L111_unpacking_done:;
                 }
                 __Pyx_XDECREF_SET(__pyx_v_phrase2, __pyx_t_1);
@@ -59070,7 +59242,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                 __Pyx_XDECREF_SET(__pyx_v_eindexes, __pyx_t_3);
                 __pyx_t_3 = 0;
 
-                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1868
+                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1871
  *                                     pair_count = 0
  *                                 for phrase2, eindexes in phrase_list:
  *                                     als4 = self.create_alignments(sent_links,num_links,self.findexes,eindexes)             # <<<<<<<<<<<<<<
@@ -59079,31 +59251,31 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
                 __pyx_t_15 = ((PyObject *)__pyx_v_self->findexes);
                 __Pyx_INCREF(__pyx_t_15);
-                if (!(likely(((__pyx_v_eindexes) == Py_None) || likely(__Pyx_TypeTest(__pyx_v_eindexes, __pyx_ptype_4cdec_2sa_3_sa_IntList))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1868; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-                __pyx_t_3 = ((PyObject *)((struct __pyx_vtabstruct_4cdec_2sa_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->create_alignments(__pyx_v_self, __pyx_v_sent_links, __pyx_v_num_links, ((struct __pyx_obj_4cdec_2sa_3_sa_IntList *)__pyx_t_15), ((struct __pyx_obj_4cdec_2sa_3_sa_IntList *)__pyx_v_eindexes))); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1868; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                if (!(likely(((__pyx_v_eindexes) == Py_None) || likely(__Pyx_TypeTest(__pyx_v_eindexes, __pyx_ptype_4cdec_2sa_3_sa_IntList))))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1871; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_3 = ((PyObject *)((struct __pyx_vtabstruct_4cdec_2sa_3_sa_HieroCachingRuleFactory *)__pyx_v_self->__pyx_vtab)->create_alignments(__pyx_v_self, __pyx_v_sent_links, __pyx_v_num_links, ((struct __pyx_obj_4cdec_2sa_3_sa_IntList *)__pyx_t_15), ((struct __pyx_obj_4cdec_2sa_3_sa_IntList *)__pyx_v_eindexes))); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1871; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_3);
                 __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
                 __Pyx_XDECREF_SET(__pyx_v_als4, ((struct __pyx_obj_4cdec_2sa_3_sa_IntList *)__pyx_t_3));
                 __pyx_t_3 = 0;
 
-                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1869
+                /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1872
  *                                 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_3 = PyFloat_FromDouble(__pyx_v_pair_count); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1869; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __pyx_t_3 = PyFloat_FromDouble(__pyx_v_pair_count); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1872; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_3);
-                __pyx_t_15 = PyTuple_New(1); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1869; __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 = 1872; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                 __Pyx_GOTREF(__pyx_t_15);
                 __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 = 1869; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+                __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 = 1872; __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 = 1869; __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 = 1872; __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));
@@ -59117,7 +59289,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
                 __Pyx_GIVEREF(__pyx_t_1);
                 __pyx_t_3 = 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 = 1869; __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 = 1872; __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;
@@ -59139,7 +59311,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
     }
     /*else*/ {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1871
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1874
  *                                     extracts.append((fphr, phrase2, pair_count, tuple(als4)))
  *             else:
  *                 reason_for_failure = "Unable to extract basic phrase"             # <<<<<<<<<<<<<<
@@ -59154,7 +59326,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
   }
   __pyx_L33:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1873
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1876
  *                 reason_for_failure = "Unable to extract basic phrase"
  * 
  *         free(sent_links)             # <<<<<<<<<<<<<<
@@ -59163,7 +59335,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
   free(__pyx_v_sent_links);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1874
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1877
  * 
  *         free(sent_links)
  *         free(f_links_low)             # <<<<<<<<<<<<<<
@@ -59172,7 +59344,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
   free(__pyx_v_f_links_low);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1875
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1878
  *         free(sent_links)
  *         free(f_links_low)
  *         free(f_links_high)             # <<<<<<<<<<<<<<
@@ -59181,7 +59353,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
   free(__pyx_v_f_links_high);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1876
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1879
  *         free(f_links_low)
  *         free(f_links_high)
  *         free(e_links_low)             # <<<<<<<<<<<<<<
@@ -59190,7 +59362,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
   free(__pyx_v_e_links_low);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1877
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1880
  *         free(f_links_high)
  *         free(e_links_low)
  *         free(e_links_high)             # <<<<<<<<<<<<<<
@@ -59199,7 +59371,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
   free(__pyx_v_e_links_high);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1878
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1881
  *         free(e_links_low)
  *         free(e_links_high)
  *         free(f_gap_low)             # <<<<<<<<<<<<<<
@@ -59208,7 +59380,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
   free(__pyx_v_f_gap_low);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1879
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1882
  *         free(e_links_high)
  *         free(f_gap_low)
  *         free(f_gap_high)             # <<<<<<<<<<<<<<
@@ -59217,7 +59389,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
   free(__pyx_v_f_gap_high);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1880
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1883
  *         free(f_gap_low)
  *         free(f_gap_high)
  *         free(e_gap_low)             # <<<<<<<<<<<<<<
@@ -59226,7 +59398,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
   free(__pyx_v_e_gap_low);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1881
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1884
  *         free(f_gap_high)
  *         free(e_gap_low)
  *         free(e_gap_high)             # <<<<<<<<<<<<<<
@@ -59235,7 +59407,7 @@ static PyObject *__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract(struct
  */
   free(__pyx_v_e_gap_high);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1883
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1886
  *         free(e_gap_high)
  * 
  *         return extracts             # <<<<<<<<<<<<<<
@@ -59294,7 +59466,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_26add_instanc
     static PyObject **__pyx_pyargnames[] = {&__pyx_n_s__f_words,&__pyx_n_s__e_words,&__pyx_n_s__alignment,&__pyx_n_s__ctx_name,0};
     PyObject* values[4] = {0,0,0,0};
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1891
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1894
  *     # Aggregate stats from a training instance
  *     # (Extract rules, update counts)
  *     def add_instance(self, f_words, e_words, alignment, ctx_name=None):             # <<<<<<<<<<<<<<
@@ -59321,12 +59493,12 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_26add_instanc
         case  1:
         if (likely((values[1] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__e_words)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("add_instance", 0, 3, 4, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1891; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("add_instance", 0, 3, 4, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1894; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
         case  2:
         if (likely((values[2] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__alignment)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("add_instance", 0, 3, 4, 2); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1891; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("add_instance", 0, 3, 4, 2); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1894; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
         case  3:
         if (kw_args > 0) {
@@ -59335,7 +59507,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_26add_instanc
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "add_instance") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1891; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "add_instance") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1894; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else {
       switch (PyTuple_GET_SIZE(__pyx_args)) {
@@ -59354,7 +59526,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_26add_instanc
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("add_instance", 0, 3, 4, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1891; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+  __Pyx_RaiseArgtupleInvalid("add_instance", 0, 3, 4, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1894; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_AddTraceback("cdec.sa._sa.HieroCachingRuleFactory.add_instance", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -59411,46 +59583,46 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
         case  1:
         if (likely((values[1] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__f_j)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("extract", 1, 9, 9, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1925; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("extract", 1, 9, 9, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1928; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
         case  2:
         if (likely((values[2] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__e_i)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("extract", 1, 9, 9, 2); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1925; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("extract", 1, 9, 9, 2); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1928; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
         case  3:
         if (likely((values[3] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__e_j)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("extract", 1, 9, 9, 3); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1925; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("extract", 1, 9, 9, 3); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1928; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
         case  4:
         if (likely((values[4] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__min_bound)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("extract", 1, 9, 9, 4); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1925; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("extract", 1, 9, 9, 4); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1928; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
         case  5:
         if (likely((values[5] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__wc)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("extract", 1, 9, 9, 5); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1925; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("extract", 1, 9, 9, 5); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1928; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
         case  6:
         if (likely((values[6] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__links)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("extract", 1, 9, 9, 6); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1925; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("extract", 1, 9, 9, 6); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1928; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
         case  7:
         if (likely((values[7] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__nt)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("extract", 1, 9, 9, 7); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1925; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("extract", 1, 9, 9, 7); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1928; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
         case  8:
         if (likely((values[8] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__nt_open)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("extract", 1, 9, 9, 8); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1925; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("extract", 1, 9, 9, 8); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1928; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "extract") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1925; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "extract") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1928; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else if (PyTuple_GET_SIZE(__pyx_args) != 9) {
       goto __pyx_L5_argtuple_error;
@@ -59477,7 +59649,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("extract", 1, 9, 9, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1925; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+  __Pyx_RaiseArgtupleInvalid("extract", 1, 9, 9, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1928; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_AddTraceback("cdec.sa._sa.HieroCachingRuleFactory.add_instance.extract", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -59488,7 +59660,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1925
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1928
  *         # f_ i and j are current, e_ i and j are previous
  *         # We care _considering_ f_j, so it is not yet in counts
  *         def extract(f_i, f_j, e_i, e_j, min_bound, wc, links, nt, nt_open):             # <<<<<<<<<<<<<<
@@ -59533,33 +59705,33 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
   __pyx_outer_scope = (struct __pyx_obj_4cdec_2sa_3_sa___pyx_scope_struct_21_add_instance *) __Pyx_CyFunction_GetClosure(__pyx_self);
   __pyx_cur_scope = __pyx_outer_scope;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1927
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1930
  *         def extract(f_i, f_j, e_i, e_j, min_bound, wc, links, nt, nt_open):
  *             # Phrase extraction limits
  *             if f_j > (f_len - 1) or (f_j - f_i) + 1 > self.max_initial_size:             # <<<<<<<<<<<<<<
  *                 return
  *             # Unaligned word
  */
-  if (unlikely(!__pyx_cur_scope->__pyx_v_f_len)) { __Pyx_RaiseClosureNameError("f_len"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1927; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
-  __pyx_t_1 = PyNumber_Subtract(__pyx_cur_scope->__pyx_v_f_len, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1927; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (unlikely(!__pyx_cur_scope->__pyx_v_f_len)) { __Pyx_RaiseClosureNameError("f_len"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1930; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+  __pyx_t_1 = PyNumber_Subtract(__pyx_cur_scope->__pyx_v_f_len, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1930; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = PyObject_RichCompare(__pyx_v_f_j, __pyx_t_1, Py_GT); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1927; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyObject_RichCompare(__pyx_v_f_j, __pyx_t_1, Py_GT); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1930; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1927; __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 = 1930; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   if (!__pyx_t_3) {
-    __pyx_t_2 = PyNumber_Subtract(__pyx_v_f_j, __pyx_v_f_i); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1927; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyNumber_Subtract(__pyx_v_f_j, __pyx_v_f_i); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1930; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_1 = PyNumber_Add(__pyx_t_2, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1927; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyNumber_Add(__pyx_t_2, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1930; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    if (unlikely(!__pyx_cur_scope->__pyx_v_self)) { __Pyx_RaiseClosureNameError("self"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1927; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
-    __pyx_t_2 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_self->max_initial_size); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1927; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (unlikely(!__pyx_cur_scope->__pyx_v_self)) { __Pyx_RaiseClosureNameError("self"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1930; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+    __pyx_t_2 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_self->max_initial_size); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1930; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_4 = PyObject_RichCompare(__pyx_t_1, __pyx_t_2, Py_GT); __Pyx_XGOTREF(__pyx_t_4); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1927; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyObject_RichCompare(__pyx_t_1, __pyx_t_2, Py_GT); __Pyx_XGOTREF(__pyx_t_4); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1930; __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;
-    __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1927; __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 = 1930; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     __pyx_t_6 = __pyx_t_5;
   } else {
@@ -59567,7 +59739,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
   }
   if (__pyx_t_6) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1928
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1931
  *             # Phrase extraction limits
  *             if f_j > (f_len - 1) or (f_j - f_i) + 1 > self.max_initial_size:
  *                 return             # <<<<<<<<<<<<<<
@@ -59581,41 +59753,41 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
   }
   __pyx_L3:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1930
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1933
  *                 return
  *             # Unaligned word
  *             if not al[f_j]:             # <<<<<<<<<<<<<<
  *                 # Adjacent to non-terminal: extend (non-terminal now open)
  *                 if nt and nt[-1][2] == f_j - 1:
  */
-  if (unlikely(!__pyx_cur_scope->__pyx_v_al)) { __Pyx_RaiseClosureNameError("al"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1930; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
-  __pyx_t_4 = PyObject_GetItem(__pyx_cur_scope->__pyx_v_al, __pyx_v_f_j); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1930; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (unlikely(!__pyx_cur_scope->__pyx_v_al)) { __Pyx_RaiseClosureNameError("al"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1933; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+  __pyx_t_4 = PyObject_GetItem(__pyx_cur_scope->__pyx_v_al, __pyx_v_f_j); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1933; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_4);
-  __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1930; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1933; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
   __pyx_t_3 = ((!__pyx_t_6) != 0);
   if (__pyx_t_3) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1932
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1935
  *             if not al[f_j]:
  *                 # Adjacent to non-terminal: extend (non-terminal now open)
  *                 if nt and nt[-1][2] == f_j - 1:             # <<<<<<<<<<<<<<
  *                     nt[-1][2] += 1
  *                     extract(f_i, f_j + 1, e_i, e_j, min_bound, wc, links, nt, True)
  */
-    __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_v_nt); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1932; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_v_nt); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1935; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     if (__pyx_t_3) {
-      __pyx_t_4 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1932; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1935; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_4, 2, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1932; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_4, 2, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1935; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-      __pyx_t_4 = PyNumber_Subtract(__pyx_v_f_j, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1932; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyNumber_Subtract(__pyx_v_f_j, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1935; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_1 = PyObject_RichCompare(__pyx_t_2, __pyx_t_4, Py_EQ); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1932; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyObject_RichCompare(__pyx_t_2, __pyx_t_4, Py_EQ); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1935; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-      __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1932; __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 = 1935; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
       __pyx_t_5 = __pyx_t_6;
     } else {
@@ -59623,80 +59795,80 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
     }
     if (__pyx_t_5) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1933
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1936
  *                 # Adjacent to non-terminal: extend (non-terminal now open)
  *                 if nt and nt[-1][2] == f_j - 1:
  *                     nt[-1][2] += 1             # <<<<<<<<<<<<<<
  *                     extract(f_i, f_j + 1, e_i, e_j, min_bound, wc, links, nt, True)
  *                     nt[-1][2] -= 1
  */
-      __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1933; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1936; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
       __pyx_t_7 = 2;
-      __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_1, __pyx_t_7, sizeof(Py_ssize_t), PyInt_FromSsize_t, 0, 1, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1933; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_1, __pyx_t_7, sizeof(Py_ssize_t), PyInt_FromSsize_t, 0, 1, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1936; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_2 = PyNumber_InPlaceAdd(__pyx_t_4, __pyx_int_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1933; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyNumber_InPlaceAdd(__pyx_t_4, __pyx_int_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1936; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-      if (__Pyx_SetItemInt(__pyx_t_1, __pyx_t_7, __pyx_t_2, sizeof(Py_ssize_t), PyInt_FromSsize_t, 0, 1, 1) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1933; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      if (__Pyx_SetItemInt(__pyx_t_1, __pyx_t_7, __pyx_t_2, sizeof(Py_ssize_t), PyInt_FromSsize_t, 0, 1, 1) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1936; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1934
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1937
  *                 if nt and nt[-1][2] == f_j - 1:
  *                     nt[-1][2] += 1
  *                     extract(f_i, f_j + 1, e_i, e_j, min_bound, wc, links, nt, True)             # <<<<<<<<<<<<<<
  *                     nt[-1][2] -= 1
  *                 # Unless non-terminal already open, always extend with word
  */
-      __pyx_t_1 = PyNumber_Add(__pyx_v_f_j, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1934; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyNumber_Add(__pyx_v_f_j, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1937; __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 = 1934; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = __Pyx_PyBool_FromLong(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1937; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      if (unlikely(!__pyx_cur_scope->__pyx_v_extract)) { __Pyx_RaiseClosureNameError("extract"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1934; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
-      __pyx_t_4 = __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instance_extract(__pyx_cur_scope->__pyx_v_extract, __pyx_v_f_i, __pyx_t_1, __pyx_v_e_i, __pyx_v_e_j, __pyx_v_min_bound, __pyx_v_wc, __pyx_v_links, __pyx_v_nt, __pyx_t_2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1934; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      if (unlikely(!__pyx_cur_scope->__pyx_v_extract)) { __Pyx_RaiseClosureNameError("extract"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1937; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+      __pyx_t_4 = __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instance_extract(__pyx_cur_scope->__pyx_v_extract, __pyx_v_f_i, __pyx_t_1, __pyx_v_e_i, __pyx_v_e_j, __pyx_v_min_bound, __pyx_v_wc, __pyx_v_links, __pyx_v_nt, __pyx_t_2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1937; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1935
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1938
  *                     nt[-1][2] += 1
  *                     extract(f_i, f_j + 1, e_i, e_j, min_bound, wc, links, nt, True)
  *                     nt[-1][2] -= 1             # <<<<<<<<<<<<<<
  *                 # Unless non-terminal already open, always extend with word
  *                 # Make sure adding a word doesn't exceed length
  */
-      __pyx_t_4 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1935; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1938; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       __pyx_t_7 = 2;
-      __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_4, __pyx_t_7, sizeof(Py_ssize_t), PyInt_FromSsize_t, 0, 1, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1935; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_4, __pyx_t_7, sizeof(Py_ssize_t), PyInt_FromSsize_t, 0, 1, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1938; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_1 = PyNumber_InPlaceSubtract(__pyx_t_2, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1935; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyNumber_InPlaceSubtract(__pyx_t_2, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1938; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-      if (__Pyx_SetItemInt(__pyx_t_4, __pyx_t_7, __pyx_t_1, sizeof(Py_ssize_t), PyInt_FromSsize_t, 0, 1, 1) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1935; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      if (__Pyx_SetItemInt(__pyx_t_4, __pyx_t_7, __pyx_t_1, sizeof(Py_ssize_t), PyInt_FromSsize_t, 0, 1, 1) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1938; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       goto __pyx_L5;
     }
     __pyx_L5:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1938
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1941
  *                 # Unless non-terminal already open, always extend with word
  *                 # Make sure adding a word doesn't exceed length
  *                 if not nt_open and wc < self.max_length:             # <<<<<<<<<<<<<<
  *                     extract(f_i, f_j + 1, e_i, e_j, min_bound, wc + 1, links, nt, False)
  *                 return
  */
-    __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_v_nt_open); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1938; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_v_nt_open); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1941; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __pyx_t_3 = (!__pyx_t_5);
     if (__pyx_t_3) {
-      __pyx_t_4 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_self->max_length); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1938; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_self->max_length); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1941; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_1 = PyObject_RichCompare(__pyx_v_wc, __pyx_t_4, Py_LT); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1938; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyObject_RichCompare(__pyx_v_wc, __pyx_t_4, Py_LT); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1941; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-      __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1938; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1941; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
       __pyx_t_6 = __pyx_t_5;
     } else {
@@ -59704,21 +59876,21 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
     }
     if (__pyx_t_6) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1939
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1942
  *                 # Make sure adding a word doesn't exceed length
  *                 if not nt_open and wc < self.max_length:
  *                     extract(f_i, f_j + 1, e_i, e_j, min_bound, wc + 1, links, nt, False)             # <<<<<<<<<<<<<<
  *                 return
  *             # Aligned word
  */
-      __pyx_t_1 = PyNumber_Add(__pyx_v_f_j, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1939; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyNumber_Add(__pyx_v_f_j, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1942; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
-      __pyx_t_4 = PyNumber_Add(__pyx_v_wc, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1939; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyNumber_Add(__pyx_v_wc, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1942; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_2 = __Pyx_PyBool_FromLong(0); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1939; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = __Pyx_PyBool_FromLong(0); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1942; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      if (unlikely(!__pyx_cur_scope->__pyx_v_extract)) { __Pyx_RaiseClosureNameError("extract"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1939; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
-      __pyx_t_8 = __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instance_extract(__pyx_cur_scope->__pyx_v_extract, __pyx_v_f_i, __pyx_t_1, __pyx_v_e_i, __pyx_v_e_j, __pyx_v_min_bound, __pyx_t_4, __pyx_v_links, __pyx_v_nt, __pyx_t_2); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1939; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      if (unlikely(!__pyx_cur_scope->__pyx_v_extract)) { __Pyx_RaiseClosureNameError("extract"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1942; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+      __pyx_t_8 = __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instance_extract(__pyx_cur_scope->__pyx_v_extract, __pyx_v_f_i, __pyx_t_1, __pyx_v_e_i, __pyx_v_e_j, __pyx_v_min_bound, __pyx_t_4, __pyx_v_links, __pyx_v_nt, __pyx_t_2); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1942; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_8);
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
@@ -59728,7 +59900,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
     }
     __pyx_L6:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1940
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1943
  *                 if not nt_open and wc < self.max_length:
  *                     extract(f_i, f_j + 1, e_i, e_j, min_bound, wc + 1, links, nt, False)
  *                 return             # <<<<<<<<<<<<<<
@@ -59742,27 +59914,27 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
   }
   __pyx_L4:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1942
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1945
  *                 return
  *             # Aligned word
  *             link_i = fe_span[f_j][0]             # <<<<<<<<<<<<<<
  *             link_j = fe_span[f_j][1]
  *             new_e_i = min(link_i, e_i)
  */
-  if (unlikely(!__pyx_cur_scope->__pyx_v_fe_span)) { __Pyx_RaiseClosureNameError("fe_span"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1942; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+  if (unlikely(!__pyx_cur_scope->__pyx_v_fe_span)) { __Pyx_RaiseClosureNameError("fe_span"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1945; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
   if (unlikely(((PyObject *)__pyx_cur_scope->__pyx_v_fe_span) == Py_None)) {
     PyErr_SetString(PyExc_TypeError, "'NoneType' object is not subscriptable");
-    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1942; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1945; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   }
-  __pyx_t_8 = PyObject_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_fe_span), __pyx_v_f_j); if (!__pyx_t_8) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1942; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_8 = PyObject_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_fe_span), __pyx_v_f_j); if (!__pyx_t_8) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1945; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_8);
-  __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_8, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1942; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_8, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1945; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
   __pyx_v_link_i = __pyx_t_2;
   __pyx_t_2 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1943
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1946
  *             # Aligned word
  *             link_i = fe_span[f_j][0]
  *             link_j = fe_span[f_j][1]             # <<<<<<<<<<<<<<
@@ -59771,17 +59943,17 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
  */
   if (unlikely(((PyObject *)__pyx_cur_scope->__pyx_v_fe_span) == Py_None)) {
     PyErr_SetString(PyExc_TypeError, "'NoneType' object is not subscriptable");
-    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1943; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1946; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   }
-  __pyx_t_2 = PyObject_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_fe_span), __pyx_v_f_j); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1943; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyObject_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_fe_span), __pyx_v_f_j); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1946; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_8 = __Pyx_GetItemInt(__pyx_t_2, 1, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_8) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1943; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_8 = __Pyx_GetItemInt(__pyx_t_2, 1, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_8) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1946; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_8);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __pyx_v_link_j = __pyx_t_8;
   __pyx_t_8 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1944
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1947
  *             link_i = fe_span[f_j][0]
  *             link_j = fe_span[f_j][1]
  *             new_e_i = min(link_i, e_i)             # <<<<<<<<<<<<<<
@@ -59792,8 +59964,8 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
   __pyx_t_8 = __pyx_v_e_i;
   __Pyx_INCREF(__pyx_v_link_i);
   __pyx_t_2 = __pyx_v_link_i;
-  __pyx_t_1 = PyObject_RichCompare(__pyx_t_8, __pyx_t_2, Py_LT); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1944; __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 = 1944; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_RichCompare(__pyx_t_8, __pyx_t_2, Py_LT); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1947; __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 = 1947; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   if (__pyx_t_6) {
     __Pyx_INCREF(__pyx_t_8);
@@ -59810,7 +59982,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
   __pyx_v_new_e_i = __pyx_t_8;
   __pyx_t_8 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1945
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1948
  *             link_j = fe_span[f_j][1]
  *             new_e_i = min(link_i, e_i)
  *             new_e_j = max(link_j, e_j)             # <<<<<<<<<<<<<<
@@ -59821,8 +59993,8 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
   __pyx_t_8 = __pyx_v_e_j;
   __Pyx_INCREF(__pyx_v_link_j);
   __pyx_t_4 = __pyx_v_link_j;
-  __pyx_t_1 = PyObject_RichCompare(__pyx_t_8, __pyx_t_4, Py_GT); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1945; __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 = 1945; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_RichCompare(__pyx_t_8, __pyx_t_4, Py_GT); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1948; __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 = 1948; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   if (__pyx_t_6) {
     __Pyx_INCREF(__pyx_t_8);
@@ -59839,7 +60011,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
   __pyx_v_new_e_j = __pyx_t_8;
   __pyx_t_8 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1948
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1951
  *             # Check reverse links of newly covered words to see if they violate left
  *             # bound (return) or extend minimum right bound for chunk
  *             new_min_bound = min_bound             # <<<<<<<<<<<<<<
@@ -59849,57 +60021,57 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
   __Pyx_INCREF(__pyx_v_min_bound);
   __pyx_v_new_min_bound = __pyx_v_min_bound;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1950
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1953
  *             new_min_bound = min_bound
  *             # First aligned word creates span
  *             if e_j == -1:             # <<<<<<<<<<<<<<
  *                 for i from new_e_i <= i <= new_e_j:
  *                     if ef_span[i][0] < f_i:
  */
-  __pyx_t_8 = PyObject_RichCompare(__pyx_v_e_j, __pyx_int_neg_1, Py_EQ); __Pyx_XGOTREF(__pyx_t_8); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1950; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_8); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1950; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_8 = PyObject_RichCompare(__pyx_v_e_j, __pyx_int_neg_1, Py_EQ); __Pyx_XGOTREF(__pyx_t_8); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1953; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_8); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1953; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
   if (__pyx_t_6) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1951
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1954
  *             # First aligned word creates span
  *             if e_j == -1:
  *                 for i from new_e_i <= i <= new_e_j:             # <<<<<<<<<<<<<<
  *                     if ef_span[i][0] < f_i:
  *                         return
  */
-    __pyx_t_9 = __Pyx_PyInt_AsInt(__pyx_v_new_e_i); if (unlikely((__pyx_t_9 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1951; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __pyx_t_10 = __Pyx_PyInt_AsInt(__pyx_v_new_e_j); if (unlikely((__pyx_t_10 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1951; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_9 = __Pyx_PyInt_AsInt(__pyx_v_new_e_i); if (unlikely((__pyx_t_9 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1954; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_10 = __Pyx_PyInt_AsInt(__pyx_v_new_e_j); if (unlikely((__pyx_t_10 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1954; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     for (__pyx_t_11 = __pyx_t_9; __pyx_t_11 <= __pyx_t_10; __pyx_t_11++) {
-      __pyx_t_8 = PyInt_FromLong(__pyx_t_11); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1951; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = PyInt_FromLong(__pyx_t_11); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1954; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_8);
       __Pyx_XDECREF_SET(__pyx_v_i, __pyx_t_8);
       __pyx_t_8 = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1952
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1955
  *             if e_j == -1:
  *                 for i from new_e_i <= i <= new_e_j:
  *                     if ef_span[i][0] < f_i:             # <<<<<<<<<<<<<<
  *                         return
  *                     new_min_bound = max(new_min_bound, ef_span[i][1])
  */
-      if (unlikely(!__pyx_cur_scope->__pyx_v_ef_span)) { __Pyx_RaiseClosureNameError("ef_span"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1952; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+      if (unlikely(!__pyx_cur_scope->__pyx_v_ef_span)) { __Pyx_RaiseClosureNameError("ef_span"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1955; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
       if (unlikely(((PyObject *)__pyx_cur_scope->__pyx_v_ef_span) == Py_None)) {
         PyErr_SetString(PyExc_TypeError, "'NoneType' object is not subscriptable");
-        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1952; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1955; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       }
-      __pyx_t_8 = PyObject_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_ef_span), __pyx_v_i); if (!__pyx_t_8) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1952; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = PyObject_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_ef_span), __pyx_v_i); if (!__pyx_t_8) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1955; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_8);
-      __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_8, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1952; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_8, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1955; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-      __pyx_t_8 = PyObject_RichCompare(__pyx_t_2, __pyx_v_f_i, Py_LT); __Pyx_XGOTREF(__pyx_t_8); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1952; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = PyObject_RichCompare(__pyx_t_2, __pyx_v_f_i, Py_LT); __Pyx_XGOTREF(__pyx_t_8); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1955; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-      __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_8); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1952; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_8); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1955; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
       if (__pyx_t_6) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1953
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1956
  *                 for i from new_e_i <= i <= new_e_j:
  *                     if ef_span[i][0] < f_i:
  *                         return             # <<<<<<<<<<<<<<
@@ -59913,7 +60085,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
       }
       __pyx_L10:;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1954
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1957
  *                     if ef_span[i][0] < f_i:
  *                         return
  *                     new_min_bound = max(new_min_bound, ef_span[i][1])             # <<<<<<<<<<<<<<
@@ -59922,17 +60094,17 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
  */
       if (unlikely(((PyObject *)__pyx_cur_scope->__pyx_v_ef_span) == Py_None)) {
         PyErr_SetString(PyExc_TypeError, "'NoneType' object is not subscriptable");
-        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1954; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1957; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       }
-      __pyx_t_8 = PyObject_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_ef_span), __pyx_v_i); if (!__pyx_t_8) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1954; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = PyObject_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_ef_span), __pyx_v_i); if (!__pyx_t_8) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1957; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_8);
-      __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_8, 1, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1954; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_8, 1, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1957; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
       __Pyx_INCREF(__pyx_v_new_min_bound);
       __pyx_t_8 = __pyx_v_new_min_bound;
-      __pyx_t_1 = PyObject_RichCompare(__pyx_t_2, __pyx_t_8, Py_GT); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1954; __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 = 1954; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyObject_RichCompare(__pyx_t_2, __pyx_t_8, Py_GT); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1957; __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 = 1957; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
       if (__pyx_t_6) {
         __Pyx_INCREF(__pyx_t_2);
@@ -59948,17 +60120,17 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       __Pyx_DECREF_SET(__pyx_v_new_min_bound, __pyx_t_2);
       __pyx_t_2 = 0;
-      __pyx_t_11 = __Pyx_PyInt_AsInt(__pyx_v_i); if (unlikely((__pyx_t_11 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1951; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_11 = __Pyx_PyInt_AsInt(__pyx_v_i); if (unlikely((__pyx_t_11 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1954; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     }
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1951
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1954
  *             # First aligned word creates span
  *             if e_j == -1:
  *                 for i from new_e_i <= i <= new_e_j:             # <<<<<<<<<<<<<<
  *                     if ef_span[i][0] < f_i:
  *                         return
  */
-    __pyx_t_2 = PyInt_FromLong(__pyx_t_11); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1951; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyInt_FromLong(__pyx_t_11); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1954; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_XDECREF_SET(__pyx_v_i, __pyx_t_2);
     __pyx_t_2 = 0;
@@ -59966,45 +60138,45 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
   }
   /*else*/ {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1957
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1960
  *             # Other aligned words extend span
  *             else:
  *                 for i from new_e_i <= i < e_i:             # <<<<<<<<<<<<<<
  *                     if ef_span[i][0] < f_i:
  *                         return
  */
-    __pyx_t_11 = __Pyx_PyInt_AsInt(__pyx_v_new_e_i); if (unlikely((__pyx_t_11 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1957; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __pyx_t_10 = __Pyx_PyInt_AsInt(__pyx_v_e_i); if (unlikely((__pyx_t_10 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1957; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_11 = __Pyx_PyInt_AsInt(__pyx_v_new_e_i); if (unlikely((__pyx_t_11 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1960; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_10 = __Pyx_PyInt_AsInt(__pyx_v_e_i); if (unlikely((__pyx_t_10 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1960; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     for (__pyx_t_9 = __pyx_t_11; __pyx_t_9 < __pyx_t_10; __pyx_t_9++) {
-      __pyx_t_2 = PyInt_FromLong(__pyx_t_9); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1957; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyInt_FromLong(__pyx_t_9); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1960; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_XDECREF_SET(__pyx_v_i, __pyx_t_2);
       __pyx_t_2 = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1958
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1961
  *             else:
  *                 for i from new_e_i <= i < e_i:
  *                     if ef_span[i][0] < f_i:             # <<<<<<<<<<<<<<
  *                         return
  *                     new_min_bound = max(new_min_bound, ef_span[i][1])
  */
-      if (unlikely(!__pyx_cur_scope->__pyx_v_ef_span)) { __Pyx_RaiseClosureNameError("ef_span"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1958; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+      if (unlikely(!__pyx_cur_scope->__pyx_v_ef_span)) { __Pyx_RaiseClosureNameError("ef_span"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1961; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
       if (unlikely(((PyObject *)__pyx_cur_scope->__pyx_v_ef_span) == Py_None)) {
         PyErr_SetString(PyExc_TypeError, "'NoneType' object is not subscriptable");
-        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1958; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1961; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       }
-      __pyx_t_2 = PyObject_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_ef_span), __pyx_v_i); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1958; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyObject_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_ef_span), __pyx_v_i); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1961; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_2, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1958; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_2, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1961; __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_RichCompare(__pyx_t_4, __pyx_v_f_i, Py_LT); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1958; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyObject_RichCompare(__pyx_t_4, __pyx_v_f_i, Py_LT); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1961; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-      __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1958; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1961; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       if (__pyx_t_6) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1959
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1962
  *                 for i from new_e_i <= i < e_i:
  *                     if ef_span[i][0] < f_i:
  *                         return             # <<<<<<<<<<<<<<
@@ -60018,7 +60190,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
       }
       __pyx_L13:;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1960
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1963
  *                     if ef_span[i][0] < f_i:
  *                         return
  *                     new_min_bound = max(new_min_bound, ef_span[i][1])             # <<<<<<<<<<<<<<
@@ -60027,17 +60199,17 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
  */
       if (unlikely(((PyObject *)__pyx_cur_scope->__pyx_v_ef_span) == Py_None)) {
         PyErr_SetString(PyExc_TypeError, "'NoneType' object is not subscriptable");
-        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1960; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1963; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       }
-      __pyx_t_2 = PyObject_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_ef_span), __pyx_v_i); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1960; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyObject_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_ef_span), __pyx_v_i); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1963; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_2, 1, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1960; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_2, 1, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1963; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       __Pyx_INCREF(__pyx_v_new_min_bound);
       __pyx_t_2 = __pyx_v_new_min_bound;
-      __pyx_t_1 = PyObject_RichCompare(__pyx_t_4, __pyx_t_2, Py_GT); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1960; __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 = 1960; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyObject_RichCompare(__pyx_t_4, __pyx_t_2, Py_GT); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1963; __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 = 1963; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
       if (__pyx_t_6) {
         __Pyx_INCREF(__pyx_t_4);
@@ -60053,60 +60225,60 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
       __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
       __Pyx_DECREF_SET(__pyx_v_new_min_bound, __pyx_t_4);
       __pyx_t_4 = 0;
-      __pyx_t_9 = __Pyx_PyInt_AsInt(__pyx_v_i); if (unlikely((__pyx_t_9 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1957; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_9 = __Pyx_PyInt_AsInt(__pyx_v_i); if (unlikely((__pyx_t_9 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1960; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     }
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1957
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1960
  *             # Other aligned words extend span
  *             else:
  *                 for i from new_e_i <= i < e_i:             # <<<<<<<<<<<<<<
  *                     if ef_span[i][0] < f_i:
  *                         return
  */
-    __pyx_t_4 = PyInt_FromLong(__pyx_t_9); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1957; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyInt_FromLong(__pyx_t_9); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1960; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_XDECREF_SET(__pyx_v_i, __pyx_t_4);
     __pyx_t_4 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1961
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1964
  *                         return
  *                     new_min_bound = max(new_min_bound, ef_span[i][1])
  *                 for i from e_j < i <= new_e_j:             # <<<<<<<<<<<<<<
  *                     if ef_span[i][0] < f_i:
  *                         return
  */
-    __pyx_t_9 = __Pyx_PyInt_AsInt(__pyx_v_e_j); if (unlikely((__pyx_t_9 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1961; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __pyx_t_10 = __Pyx_PyInt_AsInt(__pyx_v_new_e_j); if (unlikely((__pyx_t_10 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1961; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_9 = __Pyx_PyInt_AsInt(__pyx_v_e_j); if (unlikely((__pyx_t_9 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1964; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_10 = __Pyx_PyInt_AsInt(__pyx_v_new_e_j); if (unlikely((__pyx_t_10 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1964; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     for (__pyx_t_11 = __pyx_t_9+1; __pyx_t_11 <= __pyx_t_10; __pyx_t_11++) {
-      __pyx_t_4 = PyInt_FromLong(__pyx_t_11); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1961; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyInt_FromLong(__pyx_t_11); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1964; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_XDECREF_SET(__pyx_v_i, __pyx_t_4);
       __pyx_t_4 = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1962
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1965
  *                     new_min_bound = max(new_min_bound, ef_span[i][1])
  *                 for i from e_j < i <= new_e_j:
  *                     if ef_span[i][0] < f_i:             # <<<<<<<<<<<<<<
  *                         return
  *                     new_min_bound = max(new_min_bound, ef_span[i][1])
  */
-      if (unlikely(!__pyx_cur_scope->__pyx_v_ef_span)) { __Pyx_RaiseClosureNameError("ef_span"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1962; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+      if (unlikely(!__pyx_cur_scope->__pyx_v_ef_span)) { __Pyx_RaiseClosureNameError("ef_span"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1965; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
       if (unlikely(((PyObject *)__pyx_cur_scope->__pyx_v_ef_span) == Py_None)) {
         PyErr_SetString(PyExc_TypeError, "'NoneType' object is not subscriptable");
-        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1962; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1965; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       }
-      __pyx_t_4 = PyObject_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_ef_span), __pyx_v_i); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1962; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyObject_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_ef_span), __pyx_v_i); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1965; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_8 = __Pyx_GetItemInt(__pyx_t_4, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_8) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1962; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = __Pyx_GetItemInt(__pyx_t_4, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_8) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1965; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_8);
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-      __pyx_t_4 = PyObject_RichCompare(__pyx_t_8, __pyx_v_f_i, Py_LT); __Pyx_XGOTREF(__pyx_t_4); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1962; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyObject_RichCompare(__pyx_t_8, __pyx_v_f_i, Py_LT); __Pyx_XGOTREF(__pyx_t_4); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1965; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-      __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1962; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1965; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       if (__pyx_t_6) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1963
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1966
  *                 for i from e_j < i <= new_e_j:
  *                     if ef_span[i][0] < f_i:
  *                         return             # <<<<<<<<<<<<<<
@@ -60120,7 +60292,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
       }
       __pyx_L16:;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1964
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1967
  *                     if ef_span[i][0] < f_i:
  *                         return
  *                     new_min_bound = max(new_min_bound, ef_span[i][1])             # <<<<<<<<<<<<<<
@@ -60129,17 +60301,17 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
  */
       if (unlikely(((PyObject *)__pyx_cur_scope->__pyx_v_ef_span) == Py_None)) {
         PyErr_SetString(PyExc_TypeError, "'NoneType' object is not subscriptable");
-        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1964; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1967; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       }
-      __pyx_t_4 = PyObject_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_ef_span), __pyx_v_i); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1964; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyObject_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_ef_span), __pyx_v_i); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1967; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_8 = __Pyx_GetItemInt(__pyx_t_4, 1, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_8) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1964; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = __Pyx_GetItemInt(__pyx_t_4, 1, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_8) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1967; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_8);
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       __Pyx_INCREF(__pyx_v_new_min_bound);
       __pyx_t_4 = __pyx_v_new_min_bound;
-      __pyx_t_1 = PyObject_RichCompare(__pyx_t_8, __pyx_t_4, Py_GT); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1964; __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 = 1964; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyObject_RichCompare(__pyx_t_8, __pyx_t_4, Py_GT); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1967; __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 = 1967; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
       if (__pyx_t_6) {
         __Pyx_INCREF(__pyx_t_8);
@@ -60155,35 +60327,35 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       __Pyx_DECREF_SET(__pyx_v_new_min_bound, __pyx_t_8);
       __pyx_t_8 = 0;
-      __pyx_t_11 = __Pyx_PyInt_AsInt(__pyx_v_i); if (unlikely((__pyx_t_11 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1961; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_11 = __Pyx_PyInt_AsInt(__pyx_v_i); if (unlikely((__pyx_t_11 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1964; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     }
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1961
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1964
  *                         return
  *                     new_min_bound = max(new_min_bound, ef_span[i][1])
  *                 for i from e_j < i <= new_e_j:             # <<<<<<<<<<<<<<
  *                     if ef_span[i][0] < f_i:
  *                         return
  */
-    __pyx_t_8 = PyInt_FromLong(__pyx_t_11); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1961; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_8 = PyInt_FromLong(__pyx_t_11); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1964; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_8);
     __Pyx_XDECREF_SET(__pyx_v_i, __pyx_t_8);
     __pyx_t_8 = 0;
   }
   __pyx_L7:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1966
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1969
  *                     new_min_bound = max(new_min_bound, ef_span[i][1])
  *             # Extract, extend with word (unless non-terminal open)
  *             if not nt_open:             # <<<<<<<<<<<<<<
  *                 nt_collision = False
  *                 for link in al[f_j]:
  */
-  __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_v_nt_open); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1966; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_v_nt_open); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1969; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_t_3 = ((!__pyx_t_6) != 0);
   if (__pyx_t_3) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1967
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1970
  *             # Extract, extend with word (unless non-terminal open)
  *             if not nt_open:
  *                 nt_collision = False             # <<<<<<<<<<<<<<
@@ -60192,20 +60364,20 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
  */
     __pyx_v_nt_collision = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1968
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1971
  *             if not nt_open:
  *                 nt_collision = False
  *                 for link in al[f_j]:             # <<<<<<<<<<<<<<
  *                     if e_nt_cover[link]:
  *                         nt_collision = True
  */
-    __pyx_t_8 = PyObject_GetItem(__pyx_cur_scope->__pyx_v_al, __pyx_v_f_j); if (!__pyx_t_8) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1968; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_8 = PyObject_GetItem(__pyx_cur_scope->__pyx_v_al, __pyx_v_f_j); if (!__pyx_t_8) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1971; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_8);
     if (PyList_CheckExact(__pyx_t_8) || PyTuple_CheckExact(__pyx_t_8)) {
       __pyx_t_2 = __pyx_t_8; __Pyx_INCREF(__pyx_t_2); __pyx_t_7 = 0;
       __pyx_t_12 = NULL;
     } else {
-      __pyx_t_7 = -1; __pyx_t_2 = PyObject_GetIter(__pyx_t_8); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1968; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_7 = -1; __pyx_t_2 = PyObject_GetIter(__pyx_t_8); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1971; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __pyx_t_12 = Py_TYPE(__pyx_t_2)->tp_iternext;
     }
@@ -60214,23 +60386,23 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
       if (!__pyx_t_12 && PyList_CheckExact(__pyx_t_2)) {
         if (__pyx_t_7 >= PyList_GET_SIZE(__pyx_t_2)) break;
         #if CYTHON_COMPILING_IN_CPYTHON
-        __pyx_t_8 = PyList_GET_ITEM(__pyx_t_2, __pyx_t_7); __Pyx_INCREF(__pyx_t_8); __pyx_t_7++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1968; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_8 = PyList_GET_ITEM(__pyx_t_2, __pyx_t_7); __Pyx_INCREF(__pyx_t_8); __pyx_t_7++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1971; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         #else
-        __pyx_t_8 = PySequence_ITEM(__pyx_t_2, __pyx_t_7); __pyx_t_7++; if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1968; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_8 = PySequence_ITEM(__pyx_t_2, __pyx_t_7); __pyx_t_7++; if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1971; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         #endif
       } else if (!__pyx_t_12 && PyTuple_CheckExact(__pyx_t_2)) {
         if (__pyx_t_7 >= PyTuple_GET_SIZE(__pyx_t_2)) break;
         #if CYTHON_COMPILING_IN_CPYTHON
-        __pyx_t_8 = PyTuple_GET_ITEM(__pyx_t_2, __pyx_t_7); __Pyx_INCREF(__pyx_t_8); __pyx_t_7++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1968; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_8 = PyTuple_GET_ITEM(__pyx_t_2, __pyx_t_7); __Pyx_INCREF(__pyx_t_8); __pyx_t_7++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1971; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         #else
-        __pyx_t_8 = PySequence_ITEM(__pyx_t_2, __pyx_t_7); __pyx_t_7++; if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1968; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_8 = PySequence_ITEM(__pyx_t_2, __pyx_t_7); __pyx_t_7++; if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1971; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         #endif
       } else {
         __pyx_t_8 = __pyx_t_12(__pyx_t_2);
         if (unlikely(!__pyx_t_8)) {
           if (PyErr_Occurred()) {
             if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-            else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1968; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1971; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           }
           break;
         }
@@ -60239,25 +60411,25 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
       __Pyx_XDECREF_SET(__pyx_v_link, __pyx_t_8);
       __pyx_t_8 = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1969
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1972
  *                 nt_collision = False
  *                 for link in al[f_j]:
  *                     if e_nt_cover[link]:             # <<<<<<<<<<<<<<
  *                         nt_collision = True
  *                 # Non-terminal collisions block word extraction and extension, but
  */
-      if (unlikely(!__pyx_cur_scope->__pyx_v_e_nt_cover)) { __Pyx_RaiseClosureNameError("e_nt_cover"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1969; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+      if (unlikely(!__pyx_cur_scope->__pyx_v_e_nt_cover)) { __Pyx_RaiseClosureNameError("e_nt_cover"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1972; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
       if (unlikely(((PyObject *)__pyx_cur_scope->__pyx_v_e_nt_cover) == Py_None)) {
         PyErr_SetString(PyExc_TypeError, "'NoneType' object is not subscriptable");
-        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1969; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1972; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       }
-      __pyx_t_8 = PyObject_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_e_nt_cover), __pyx_v_link); if (!__pyx_t_8) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1969; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = PyObject_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_e_nt_cover), __pyx_v_link); if (!__pyx_t_8) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1972; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_8);
-      __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_8); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1969; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_8); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1972; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
       if (__pyx_t_3) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1970
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1973
  *                 for link in al[f_j]:
  *                     if e_nt_cover[link]:
  *                         nt_collision = True             # <<<<<<<<<<<<<<
@@ -60271,7 +60443,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
     }
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1973
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1976
  *                 # Non-terminal collisions block word extraction and extension, but
  *                 # may be okay for continuing non-terminals
  *                 if not nt_collision and wc < self.max_length:             # <<<<<<<<<<<<<<
@@ -60280,11 +60452,11 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
  */
     __pyx_t_3 = (!(__pyx_v_nt_collision != 0));
     if (__pyx_t_3) {
-      __pyx_t_2 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_self->max_length); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1973; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_self->max_length); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1976; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_8 = PyObject_RichCompare(__pyx_v_wc, __pyx_t_2, Py_LT); __Pyx_XGOTREF(__pyx_t_8); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1973; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = PyObject_RichCompare(__pyx_v_wc, __pyx_t_2, Py_LT); __Pyx_XGOTREF(__pyx_t_8); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1976; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-      __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_8); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1973; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_8); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1976; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
       __pyx_t_5 = __pyx_t_6;
     } else {
@@ -60292,32 +60464,32 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
     }
     if (__pyx_t_5) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1974
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1977
  *                 # may be okay for continuing non-terminals
  *                 if not nt_collision and wc < self.max_length:
  *                     plus_links = []             # <<<<<<<<<<<<<<
  *                     for link in al[f_j]:
  *                         plus_links.append((f_j, link))
  */
-      __pyx_t_8 = PyList_New(0); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1974; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = PyList_New(0); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1977; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_8);
       __pyx_v_plus_links = ((PyObject*)__pyx_t_8);
       __pyx_t_8 = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1975
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1978
  *                 if not nt_collision and wc < self.max_length:
  *                     plus_links = []
  *                     for link in al[f_j]:             # <<<<<<<<<<<<<<
  *                         plus_links.append((f_j, link))
  *                         cover[link] += 1
  */
-      __pyx_t_8 = PyObject_GetItem(__pyx_cur_scope->__pyx_v_al, __pyx_v_f_j); if (!__pyx_t_8) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1975; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = PyObject_GetItem(__pyx_cur_scope->__pyx_v_al, __pyx_v_f_j); if (!__pyx_t_8) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1978; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_8);
       if (PyList_CheckExact(__pyx_t_8) || PyTuple_CheckExact(__pyx_t_8)) {
         __pyx_t_2 = __pyx_t_8; __Pyx_INCREF(__pyx_t_2); __pyx_t_7 = 0;
         __pyx_t_12 = NULL;
       } else {
-        __pyx_t_7 = -1; __pyx_t_2 = PyObject_GetIter(__pyx_t_8); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1975; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_7 = -1; __pyx_t_2 = PyObject_GetIter(__pyx_t_8); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1978; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_2);
         __pyx_t_12 = Py_TYPE(__pyx_t_2)->tp_iternext;
       }
@@ -60326,23 +60498,23 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
         if (!__pyx_t_12 && PyList_CheckExact(__pyx_t_2)) {
           if (__pyx_t_7 >= PyList_GET_SIZE(__pyx_t_2)) break;
           #if CYTHON_COMPILING_IN_CPYTHON
-          __pyx_t_8 = PyList_GET_ITEM(__pyx_t_2, __pyx_t_7); __Pyx_INCREF(__pyx_t_8); __pyx_t_7++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1975; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_8 = PyList_GET_ITEM(__pyx_t_2, __pyx_t_7); __Pyx_INCREF(__pyx_t_8); __pyx_t_7++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1978; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           #else
-          __pyx_t_8 = PySequence_ITEM(__pyx_t_2, __pyx_t_7); __pyx_t_7++; if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1975; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_8 = PySequence_ITEM(__pyx_t_2, __pyx_t_7); __pyx_t_7++; if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1978; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           #endif
         } else if (!__pyx_t_12 && PyTuple_CheckExact(__pyx_t_2)) {
           if (__pyx_t_7 >= PyTuple_GET_SIZE(__pyx_t_2)) break;
           #if CYTHON_COMPILING_IN_CPYTHON
-          __pyx_t_8 = PyTuple_GET_ITEM(__pyx_t_2, __pyx_t_7); __Pyx_INCREF(__pyx_t_8); __pyx_t_7++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1975; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_8 = PyTuple_GET_ITEM(__pyx_t_2, __pyx_t_7); __Pyx_INCREF(__pyx_t_8); __pyx_t_7++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1978; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           #else
-          __pyx_t_8 = PySequence_ITEM(__pyx_t_2, __pyx_t_7); __pyx_t_7++; if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1975; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_8 = PySequence_ITEM(__pyx_t_2, __pyx_t_7); __pyx_t_7++; if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1978; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           #endif
         } else {
           __pyx_t_8 = __pyx_t_12(__pyx_t_2);
           if (unlikely(!__pyx_t_8)) {
             if (PyErr_Occurred()) {
               if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-              else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1975; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1978; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             }
             break;
           }
@@ -60351,14 +60523,14 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
         __Pyx_XDECREF_SET(__pyx_v_link, __pyx_t_8);
         __pyx_t_8 = 0;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1976
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1979
  *                     plus_links = []
  *                     for link in al[f_j]:
  *                         plus_links.append((f_j, link))             # <<<<<<<<<<<<<<
  *                         cover[link] += 1
  *                     links.append(plus_links)
  */
-        __pyx_t_8 = PyTuple_New(2); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1976; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_8 = PyTuple_New(2); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1979; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_8);
         __Pyx_INCREF(__pyx_v_f_j);
         PyTuple_SET_ITEM(__pyx_t_8, 0, __pyx_v_f_j);
@@ -60366,20 +60538,20 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
         __Pyx_INCREF(__pyx_v_link);
         PyTuple_SET_ITEM(__pyx_t_8, 1, __pyx_v_link);
         __Pyx_GIVEREF(__pyx_v_link);
-        __pyx_t_13 = __Pyx_PyList_Append(__pyx_v_plus_links, ((PyObject *)__pyx_t_8)); if (unlikely(__pyx_t_13 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1976; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_13 = __Pyx_PyList_Append(__pyx_v_plus_links, ((PyObject *)__pyx_t_8)); if (unlikely(__pyx_t_13 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1979; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(((PyObject *)__pyx_t_8)); __pyx_t_8 = 0;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1977
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1980
  *                     for link in al[f_j]:
  *                         plus_links.append((f_j, link))
  *                         cover[link] += 1             # <<<<<<<<<<<<<<
  *                     links.append(plus_links)
  *                     if links and f_j >= new_min_bound:
  */
-        if (unlikely(!__pyx_cur_scope->__pyx_v_cover)) { __Pyx_RaiseClosureNameError("cover"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1977; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+        if (unlikely(!__pyx_cur_scope->__pyx_v_cover)) { __Pyx_RaiseClosureNameError("cover"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1980; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
         if (unlikely(((PyObject *)__pyx_cur_scope->__pyx_v_cover) == Py_None)) {
           PyErr_SetString(PyExc_TypeError, "'NoneType' object is not subscriptable");
-          {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1977; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1980; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         }
         __Pyx_INCREF(((PyObject *)__pyx_cur_scope->__pyx_v_cover));
         __pyx_t_14 = __pyx_cur_scope->__pyx_v_cover;
@@ -60387,46 +60559,46 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
         __pyx_t_8 = __pyx_v_link;
         if (unlikely(((PyObject *)__pyx_t_14) == Py_None)) {
           PyErr_SetString(PyExc_TypeError, "'NoneType' object is not subscriptable");
-          {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1977; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1980; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         }
-        __pyx_t_4 = PyObject_GetItem(((PyObject *)__pyx_t_14), __pyx_t_8); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1977; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_4 = PyObject_GetItem(((PyObject *)__pyx_t_14), __pyx_t_8); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1980; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_4);
-        __pyx_t_1 = PyNumber_InPlaceAdd(__pyx_t_4, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1977; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_1 = PyNumber_InPlaceAdd(__pyx_t_4, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1980; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_1);
         __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
         if (unlikely(((PyObject *)__pyx_t_14) == Py_None)) {
           PyErr_SetString(PyExc_TypeError, "'NoneType' object is not subscriptable");
-          {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1977; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1980; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         }
-        if (PyObject_SetItem(((PyObject *)__pyx_t_14), __pyx_t_8, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1977; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        if (PyObject_SetItem(((PyObject *)__pyx_t_14), __pyx_t_8, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1980; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
         __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
         __Pyx_DECREF(((PyObject *)__pyx_t_14)); __pyx_t_14 = 0;
       }
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1978
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1981
  *                         plus_links.append((f_j, link))
  *                         cover[link] += 1
  *                     links.append(plus_links)             # <<<<<<<<<<<<<<
  *                     if links and f_j >= new_min_bound:
  *                         rules.add(self.form_rule(f_i, new_e_i, f_words[f_i:f_j + 1], e_words[new_e_i:new_e_j + 1], nt, links))
  */
-      __pyx_t_2 = __Pyx_PyObject_Append(__pyx_v_links, ((PyObject *)__pyx_v_plus_links)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1978; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = __Pyx_PyObject_Append(__pyx_v_links, ((PyObject *)__pyx_v_plus_links)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1981; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1979
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1982
  *                         cover[link] += 1
  *                     links.append(plus_links)
  *                     if links and f_j >= new_min_bound:             # <<<<<<<<<<<<<<
  *                         rules.add(self.form_rule(f_i, new_e_i, f_words[f_i:f_j + 1], e_words[new_e_i:new_e_j + 1], nt, links))
  *                     extract(f_i, f_j + 1, new_e_i, new_e_j, new_min_bound, wc + 1, links, nt, False)
  */
-      __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_v_links); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1979; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_v_links); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1982; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       if (__pyx_t_5) {
-        __pyx_t_2 = PyObject_RichCompare(__pyx_v_f_j, __pyx_v_new_min_bound, Py_GE); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1979; __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 = 1979; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_2 = PyObject_RichCompare(__pyx_v_f_j, __pyx_v_new_min_bound, Py_GE); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1982; __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 = 1982; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
         __pyx_t_6 = __pyx_t_3;
       } else {
@@ -60434,33 +60606,33 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
       }
       if (__pyx_t_6) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1980
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1983
  *                     links.append(plus_links)
  *                     if links and f_j >= new_min_bound:
  *                         rules.add(self.form_rule(f_i, new_e_i, f_words[f_i:f_j + 1], e_words[new_e_i:new_e_j + 1], nt, links))             # <<<<<<<<<<<<<<
  *                     extract(f_i, f_j + 1, new_e_i, new_e_j, new_min_bound, wc + 1, links, nt, False)
  *                     links.pop()
  */
-        if (unlikely(!__pyx_cur_scope->__pyx_v_rules)) { __Pyx_RaiseClosureNameError("rules"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1980; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+        if (unlikely(!__pyx_cur_scope->__pyx_v_rules)) { __Pyx_RaiseClosureNameError("rules"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1983; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
         if (unlikely(((PyObject *)__pyx_cur_scope->__pyx_v_rules) == Py_None)) {
           PyErr_Format(PyExc_AttributeError, "'NoneType' object has no attribute '%s'", "add");
-          {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1980; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1983; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         }
-        __pyx_t_2 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_cur_scope->__pyx_v_self), __pyx_n_s__form_rule); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1980; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_2 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_cur_scope->__pyx_v_self), __pyx_n_s__form_rule); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1983; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_2);
-        if (unlikely(!__pyx_cur_scope->__pyx_v_f_words)) { __Pyx_RaiseClosureNameError("f_words"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1980; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
-        __pyx_t_8 = PyNumber_Add(__pyx_v_f_j, __pyx_int_1); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1980; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        if (unlikely(!__pyx_cur_scope->__pyx_v_f_words)) { __Pyx_RaiseClosureNameError("f_words"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1983; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+        __pyx_t_8 = PyNumber_Add(__pyx_v_f_j, __pyx_int_1); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1983; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_8);
-        __pyx_t_1 = __Pyx_PyObject_GetSlice(__pyx_cur_scope->__pyx_v_f_words, 0, 0, &__pyx_v_f_i, &__pyx_t_8, NULL, 0, 0, 1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1980; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_1 = __Pyx_PyObject_GetSlice(__pyx_cur_scope->__pyx_v_f_words, 0, 0, &__pyx_v_f_i, &__pyx_t_8, NULL, 0, 0, 1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1983; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_1);
         __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-        if (unlikely(!__pyx_cur_scope->__pyx_v_e_words)) { __Pyx_RaiseClosureNameError("e_words"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1980; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
-        __pyx_t_8 = PyNumber_Add(__pyx_v_new_e_j, __pyx_int_1); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1980; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        if (unlikely(!__pyx_cur_scope->__pyx_v_e_words)) { __Pyx_RaiseClosureNameError("e_words"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1983; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+        __pyx_t_8 = PyNumber_Add(__pyx_v_new_e_j, __pyx_int_1); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1983; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_8);
-        __pyx_t_4 = __Pyx_PyObject_GetSlice(__pyx_cur_scope->__pyx_v_e_words, 0, 0, &__pyx_v_new_e_i, &__pyx_t_8, NULL, 0, 0, 1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1980; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_4 = __Pyx_PyObject_GetSlice(__pyx_cur_scope->__pyx_v_e_words, 0, 0, &__pyx_v_new_e_i, &__pyx_t_8, NULL, 0, 0, 1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1983; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_4);
         __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-        __pyx_t_8 = PyTuple_New(6); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1980; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_8 = PyTuple_New(6); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1983; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_8);
         __Pyx_INCREF(__pyx_v_f_i);
         PyTuple_SET_ITEM(__pyx_t_8, 0, __pyx_v_f_i);
@@ -60480,62 +60652,62 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
         __Pyx_GIVEREF(__pyx_v_links);
         __pyx_t_1 = 0;
         __pyx_t_4 = 0;
-        __pyx_t_4 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_8), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1980; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_4 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_8), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1983; __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_8)); __pyx_t_8 = 0;
-        __pyx_t_13 = PySet_Add(__pyx_cur_scope->__pyx_v_rules, __pyx_t_4); if (unlikely(__pyx_t_13 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1980; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_13 = PySet_Add(__pyx_cur_scope->__pyx_v_rules, __pyx_t_4); if (unlikely(__pyx_t_13 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1983; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
         goto __pyx_L24;
       }
       __pyx_L24:;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1981
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1984
  *                     if links and f_j >= new_min_bound:
  *                         rules.add(self.form_rule(f_i, new_e_i, f_words[f_i:f_j + 1], e_words[new_e_i:new_e_j + 1], nt, links))
  *                     extract(f_i, f_j + 1, new_e_i, new_e_j, new_min_bound, wc + 1, links, nt, False)             # <<<<<<<<<<<<<<
  *                     links.pop()
  *                     for link in al[f_j]:
  */
-      __pyx_t_4 = PyNumber_Add(__pyx_v_f_j, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1981; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyNumber_Add(__pyx_v_f_j, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1984; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_8 = PyNumber_Add(__pyx_v_wc, __pyx_int_1); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1981; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = PyNumber_Add(__pyx_v_wc, __pyx_int_1); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1984; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_8);
-      __pyx_t_2 = __Pyx_PyBool_FromLong(0); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1981; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = __Pyx_PyBool_FromLong(0); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1984; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      if (unlikely(!__pyx_cur_scope->__pyx_v_extract)) { __Pyx_RaiseClosureNameError("extract"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1981; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
-      __pyx_t_1 = __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instance_extract(__pyx_cur_scope->__pyx_v_extract, __pyx_v_f_i, __pyx_t_4, __pyx_v_new_e_i, __pyx_v_new_e_j, __pyx_v_new_min_bound, __pyx_t_8, __pyx_v_links, __pyx_v_nt, __pyx_t_2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1981; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      if (unlikely(!__pyx_cur_scope->__pyx_v_extract)) { __Pyx_RaiseClosureNameError("extract"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1984; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+      __pyx_t_1 = __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instance_extract(__pyx_cur_scope->__pyx_v_extract, __pyx_v_f_i, __pyx_t_4, __pyx_v_new_e_i, __pyx_v_new_e_j, __pyx_v_new_min_bound, __pyx_t_8, __pyx_v_links, __pyx_v_nt, __pyx_t_2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1984; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1982
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1985
  *                         rules.add(self.form_rule(f_i, new_e_i, f_words[f_i:f_j + 1], e_words[new_e_i:new_e_j + 1], nt, links))
  *                     extract(f_i, f_j + 1, new_e_i, new_e_j, new_min_bound, wc + 1, links, nt, False)
  *                     links.pop()             # <<<<<<<<<<<<<<
  *                     for link in al[f_j]:
  *                         cover[link] -= 1
  */
-      __pyx_t_1 = __Pyx_PyObject_Pop(__pyx_v_links); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1982; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = __Pyx_PyObject_Pop(__pyx_v_links); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1985; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1983
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1986
  *                     extract(f_i, f_j + 1, new_e_i, new_e_j, new_min_bound, wc + 1, links, nt, False)
  *                     links.pop()
  *                     for link in al[f_j]:             # <<<<<<<<<<<<<<
  *                         cover[link] -= 1
  *             # Try to add a word to current non-terminal (if any), extract, extend
  */
-      __pyx_t_1 = PyObject_GetItem(__pyx_cur_scope->__pyx_v_al, __pyx_v_f_j); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1983; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyObject_GetItem(__pyx_cur_scope->__pyx_v_al, __pyx_v_f_j); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1986; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
       if (PyList_CheckExact(__pyx_t_1) || PyTuple_CheckExact(__pyx_t_1)) {
         __pyx_t_2 = __pyx_t_1; __Pyx_INCREF(__pyx_t_2); __pyx_t_7 = 0;
         __pyx_t_12 = NULL;
       } else {
-        __pyx_t_7 = -1; __pyx_t_2 = PyObject_GetIter(__pyx_t_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1983; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_7 = -1; __pyx_t_2 = PyObject_GetIter(__pyx_t_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1986; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_2);
         __pyx_t_12 = Py_TYPE(__pyx_t_2)->tp_iternext;
       }
@@ -60544,23 +60716,23 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
         if (!__pyx_t_12 && PyList_CheckExact(__pyx_t_2)) {
           if (__pyx_t_7 >= PyList_GET_SIZE(__pyx_t_2)) break;
           #if CYTHON_COMPILING_IN_CPYTHON
-          __pyx_t_1 = PyList_GET_ITEM(__pyx_t_2, __pyx_t_7); __Pyx_INCREF(__pyx_t_1); __pyx_t_7++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1983; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_1 = PyList_GET_ITEM(__pyx_t_2, __pyx_t_7); __Pyx_INCREF(__pyx_t_1); __pyx_t_7++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1986; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           #else
-          __pyx_t_1 = PySequence_ITEM(__pyx_t_2, __pyx_t_7); __pyx_t_7++; if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1983; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_1 = PySequence_ITEM(__pyx_t_2, __pyx_t_7); __pyx_t_7++; if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1986; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           #endif
         } else if (!__pyx_t_12 && PyTuple_CheckExact(__pyx_t_2)) {
           if (__pyx_t_7 >= PyTuple_GET_SIZE(__pyx_t_2)) break;
           #if CYTHON_COMPILING_IN_CPYTHON
-          __pyx_t_1 = PyTuple_GET_ITEM(__pyx_t_2, __pyx_t_7); __Pyx_INCREF(__pyx_t_1); __pyx_t_7++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1983; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_1 = PyTuple_GET_ITEM(__pyx_t_2, __pyx_t_7); __Pyx_INCREF(__pyx_t_1); __pyx_t_7++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1986; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           #else
-          __pyx_t_1 = PySequence_ITEM(__pyx_t_2, __pyx_t_7); __pyx_t_7++; if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1983; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_1 = PySequence_ITEM(__pyx_t_2, __pyx_t_7); __pyx_t_7++; if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1986; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           #endif
         } else {
           __pyx_t_1 = __pyx_t_12(__pyx_t_2);
           if (unlikely(!__pyx_t_1)) {
             if (PyErr_Occurred()) {
               if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-              else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1983; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+              else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1986; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             }
             break;
           }
@@ -60569,17 +60741,17 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
         __Pyx_XDECREF_SET(__pyx_v_link, __pyx_t_1);
         __pyx_t_1 = 0;
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1984
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1987
  *                     links.pop()
  *                     for link in al[f_j]:
  *                         cover[link] -= 1             # <<<<<<<<<<<<<<
  *             # Try to add a word to current non-terminal (if any), extract, extend
  *             if nt and nt[-1][2] == f_j - 1:
  */
-        if (unlikely(!__pyx_cur_scope->__pyx_v_cover)) { __Pyx_RaiseClosureNameError("cover"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1984; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+        if (unlikely(!__pyx_cur_scope->__pyx_v_cover)) { __Pyx_RaiseClosureNameError("cover"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1987; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
         if (unlikely(((PyObject *)__pyx_cur_scope->__pyx_v_cover) == Py_None)) {
           PyErr_SetString(PyExc_TypeError, "'NoneType' object is not subscriptable");
-          {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1984; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1987; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         }
         __Pyx_INCREF(((PyObject *)__pyx_cur_scope->__pyx_v_cover));
         __pyx_t_14 = __pyx_cur_scope->__pyx_v_cover;
@@ -60587,18 +60759,18 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
         __pyx_t_1 = __pyx_v_link;
         if (unlikely(((PyObject *)__pyx_t_14) == Py_None)) {
           PyErr_SetString(PyExc_TypeError, "'NoneType' object is not subscriptable");
-          {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1984; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1987; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         }
-        __pyx_t_8 = PyObject_GetItem(((PyObject *)__pyx_t_14), __pyx_t_1); if (!__pyx_t_8) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1984; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_8 = PyObject_GetItem(((PyObject *)__pyx_t_14), __pyx_t_1); if (!__pyx_t_8) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1987; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_8);
-        __pyx_t_4 = PyNumber_InPlaceSubtract(__pyx_t_8, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1984; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_4 = PyNumber_InPlaceSubtract(__pyx_t_8, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1987; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_4);
         __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
         if (unlikely(((PyObject *)__pyx_t_14) == Py_None)) {
           PyErr_SetString(PyExc_TypeError, "'NoneType' object is not subscriptable");
-          {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1984; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1987; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         }
-        if (PyObject_SetItem(((PyObject *)__pyx_t_14), __pyx_t_1, __pyx_t_4) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1984; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        if (PyObject_SetItem(((PyObject *)__pyx_t_14), __pyx_t_1, __pyx_t_4) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1987; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
         __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
         __Pyx_DECREF(((PyObject *)__pyx_t_14)); __pyx_t_14 = 0;
@@ -60611,26 +60783,26 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
   }
   __pyx_L17:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1986
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1989
  *                         cover[link] -= 1
  *             # Try to add a word to current non-terminal (if any), extract, extend
  *             if nt and nt[-1][2] == f_j - 1:             # <<<<<<<<<<<<<<
  *                 # Add to non-terminal, checking for collisions
  *                 old_last_nt = nt[-1][:]
  */
-  __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_v_nt); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1986; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_v_nt); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1989; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   if (__pyx_t_6) {
-    __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1986; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1989; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_1 = __Pyx_GetItemInt(__pyx_t_2, 2, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1986; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = __Pyx_GetItemInt(__pyx_t_2, 2, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1989; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __pyx_t_2 = PyNumber_Subtract(__pyx_v_f_j, __pyx_int_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1986; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyNumber_Subtract(__pyx_v_f_j, __pyx_int_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1989; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_4 = PyObject_RichCompare(__pyx_t_1, __pyx_t_2, Py_EQ); __Pyx_XGOTREF(__pyx_t_4); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1986; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyObject_RichCompare(__pyx_t_1, __pyx_t_2, Py_EQ); __Pyx_XGOTREF(__pyx_t_4); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1989; __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;
-    __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1986; __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 = 1989; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     __pyx_t_3 = __pyx_t_5;
   } else {
@@ -60638,70 +60810,70 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
   }
   if (__pyx_t_3) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1988
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1991
  *             if nt and nt[-1][2] == f_j - 1:
  *                 # Add to non-terminal, checking for collisions
  *                 old_last_nt = nt[-1][:]             # <<<<<<<<<<<<<<
  *                 nt[-1][2] = f_j
  *                 if link_i < nt[-1][3]:
  */
-    __pyx_t_4 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1988; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1991; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_2 = __Pyx_PyObject_GetSlice(__pyx_t_4, 0, 0, NULL, NULL, &__pyx_k_slice_141, 0, 0, 1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1988; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = __Pyx_PyObject_GetSlice(__pyx_t_4, 0, 0, NULL, NULL, &__pyx_k_slice_141, 0, 0, 1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1991; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     __pyx_v_old_last_nt = __pyx_t_2;
     __pyx_t_2 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1989
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1992
  *                 # Add to non-terminal, checking for collisions
  *                 old_last_nt = nt[-1][:]
  *                 nt[-1][2] = f_j             # <<<<<<<<<<<<<<
  *                 if link_i < nt[-1][3]:
  *                     if not span_check(cover, link_i, nt[-1][3] - 1):
  */
-    __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1989; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1992; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    if (__Pyx_SetItemInt(__pyx_t_2, 2, __pyx_v_f_j, sizeof(long), PyInt_FromLong, 0, 0, 1) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1989; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (__Pyx_SetItemInt(__pyx_t_2, 2, __pyx_v_f_j, sizeof(long), PyInt_FromLong, 0, 0, 1) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1992; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1990
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1993
  *                 old_last_nt = nt[-1][:]
  *                 nt[-1][2] = f_j
  *                 if link_i < nt[-1][3]:             # <<<<<<<<<<<<<<
  *                     if not span_check(cover, link_i, nt[-1][3] - 1):
  *                         nt[-1] = old_last_nt
  */
-    __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1990; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1993; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_2, 3, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1990; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_2, 3, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1993; __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_RichCompare(__pyx_v_link_i, __pyx_t_4, Py_LT); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1990; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyObject_RichCompare(__pyx_v_link_i, __pyx_t_4, Py_LT); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1993; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __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[8]; __pyx_lineno = 1990; __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 = 1993; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     if (__pyx_t_3) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1991
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1994
  *                 nt[-1][2] = f_j
  *                 if link_i < nt[-1][3]:
  *                     if not span_check(cover, link_i, nt[-1][3] - 1):             # <<<<<<<<<<<<<<
  *                         nt[-1] = old_last_nt
  *                         return
  */
-      __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s__span_check); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1991; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s__span_check); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1994; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      if (unlikely(!__pyx_cur_scope->__pyx_v_cover)) { __Pyx_RaiseClosureNameError("cover"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1991; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
-      __pyx_t_4 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1991; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      if (unlikely(!__pyx_cur_scope->__pyx_v_cover)) { __Pyx_RaiseClosureNameError("cover"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1994; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+      __pyx_t_4 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1994; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_1 = __Pyx_GetItemInt(__pyx_t_4, 3, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1991; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = __Pyx_GetItemInt(__pyx_t_4, 3, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1994; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-      __pyx_t_4 = PyNumber_Subtract(__pyx_t_1, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1991; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyNumber_Subtract(__pyx_t_1, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1994; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-      __pyx_t_1 = PyTuple_New(3); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1991; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyTuple_New(3); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1994; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
       __Pyx_INCREF(((PyObject *)__pyx_cur_scope->__pyx_v_cover));
       PyTuple_SET_ITEM(__pyx_t_1, 0, ((PyObject *)__pyx_cur_scope->__pyx_v_cover));
@@ -60712,25 +60884,25 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
       PyTuple_SET_ITEM(__pyx_t_1, 2, __pyx_t_4);
       __Pyx_GIVEREF(__pyx_t_4);
       __pyx_t_4 = 0;
-      __pyx_t_4 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1991; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1994; __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_1)); __pyx_t_1 = 0;
-      __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1991; __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[8]; __pyx_lineno = 1994; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       __pyx_t_6 = ((!__pyx_t_3) != 0);
       if (__pyx_t_6) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1992
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1995
  *                 if link_i < nt[-1][3]:
  *                     if not span_check(cover, link_i, nt[-1][3] - 1):
  *                         nt[-1] = old_last_nt             # <<<<<<<<<<<<<<
  *                         return
  *                     span_inc(cover, link_i, nt[-1][3] - 1)
  */
-        if (__Pyx_SetItemInt(__pyx_v_nt, -1, __pyx_v_old_last_nt, sizeof(long), PyInt_FromLong, 0, 1, 1) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1992; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        if (__Pyx_SetItemInt(__pyx_v_nt, -1, __pyx_v_old_last_nt, sizeof(long), PyInt_FromLong, 0, 1, 1) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1995; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1993
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1996
  *                     if not span_check(cover, link_i, nt[-1][3] - 1):
  *                         nt[-1] = old_last_nt
  *                         return             # <<<<<<<<<<<<<<
@@ -60744,24 +60916,24 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
       }
       __pyx_L29:;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1994
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1997
  *                         nt[-1] = old_last_nt
  *                         return
  *                     span_inc(cover, link_i, nt[-1][3] - 1)             # <<<<<<<<<<<<<<
  *                     span_inc(e_nt_cover, link_i, nt[-1][3] - 1)
  *                     nt[-1][3] = link_i
  */
-      __pyx_t_4 = __Pyx_GetModuleGlobalName(__pyx_n_s__span_inc); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1994; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = __Pyx_GetModuleGlobalName(__pyx_n_s__span_inc); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1997; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1994; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1997; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
-      __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_1, 3, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1994; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_1, 3, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1997; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-      __pyx_t_1 = PyNumber_Subtract(__pyx_t_2, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1994; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyNumber_Subtract(__pyx_t_2, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1997; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-      __pyx_t_2 = PyTuple_New(3); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1994; __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 = 1997; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_INCREF(((PyObject *)__pyx_cur_scope->__pyx_v_cover));
       PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_cur_scope->__pyx_v_cover));
@@ -60772,31 +60944,31 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
       PyTuple_SET_ITEM(__pyx_t_2, 2, __pyx_t_1);
       __Pyx_GIVEREF(__pyx_t_1);
       __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[8]; __pyx_lineno = 1994; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1997; __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;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1995
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1998
  *                         return
  *                     span_inc(cover, link_i, nt[-1][3] - 1)
  *                     span_inc(e_nt_cover, link_i, nt[-1][3] - 1)             # <<<<<<<<<<<<<<
  *                     nt[-1][3] = link_i
  *                 if link_j > nt[-1][4]:
  */
-      __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s__span_inc); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1995; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s__span_inc); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1998; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
-      if (unlikely(!__pyx_cur_scope->__pyx_v_e_nt_cover)) { __Pyx_RaiseClosureNameError("e_nt_cover"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1995; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
-      __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1995; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      if (unlikely(!__pyx_cur_scope->__pyx_v_e_nt_cover)) { __Pyx_RaiseClosureNameError("e_nt_cover"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1998; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+      __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1998; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_2, 3, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1995; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_2, 3, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1998; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-      __pyx_t_2 = PyNumber_Subtract(__pyx_t_4, __pyx_int_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1995; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyNumber_Subtract(__pyx_t_4, __pyx_int_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1998; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-      __pyx_t_4 = PyTuple_New(3); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1995; __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 = 1998; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_INCREF(((PyObject *)__pyx_cur_scope->__pyx_v_e_nt_cover));
       PyTuple_SET_ITEM(__pyx_t_4, 0, ((PyObject *)__pyx_cur_scope->__pyx_v_e_nt_cover));
@@ -60807,64 +60979,64 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
       PyTuple_SET_ITEM(__pyx_t_4, 2, __pyx_t_2);
       __Pyx_GIVEREF(__pyx_t_2);
       __pyx_t_2 = 0;
-      __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 = 1995; __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 = 1998; __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;
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1996
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1999
  *                     span_inc(cover, link_i, nt[-1][3] - 1)
  *                     span_inc(e_nt_cover, link_i, nt[-1][3] - 1)
  *                     nt[-1][3] = link_i             # <<<<<<<<<<<<<<
  *                 if link_j > nt[-1][4]:
  *                     if not span_check(cover, nt[-1][4] + 1, link_j):
  */
-      __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1996; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1999; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      if (__Pyx_SetItemInt(__pyx_t_2, 3, __pyx_v_link_i, sizeof(long), PyInt_FromLong, 0, 0, 1) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1996; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      if (__Pyx_SetItemInt(__pyx_t_2, 3, __pyx_v_link_i, sizeof(long), PyInt_FromLong, 0, 0, 1) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1999; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       goto __pyx_L28;
     }
     __pyx_L28:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1997
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2000
  *                     span_inc(e_nt_cover, link_i, nt[-1][3] - 1)
  *                     nt[-1][3] = link_i
  *                 if link_j > nt[-1][4]:             # <<<<<<<<<<<<<<
  *                     if not span_check(cover, nt[-1][4] + 1, link_j):
  *                         nt[-1] = old_last_nt
  */
-    __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1997; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2000; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_2, 4, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1997; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_2, 4, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2000; __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_RichCompare(__pyx_v_link_j, __pyx_t_4, Py_GT); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1997; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyObject_RichCompare(__pyx_v_link_j, __pyx_t_4, Py_GT); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2000; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1997; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2000; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     if (__pyx_t_6) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1998
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2001
  *                     nt[-1][3] = link_i
  *                 if link_j > nt[-1][4]:
  *                     if not span_check(cover, nt[-1][4] + 1, link_j):             # <<<<<<<<<<<<<<
  *                         nt[-1] = old_last_nt
  *                         return
  */
-      __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s__span_check); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1998; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s__span_check); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2001; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      if (unlikely(!__pyx_cur_scope->__pyx_v_cover)) { __Pyx_RaiseClosureNameError("cover"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1998; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
-      __pyx_t_4 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1998; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      if (unlikely(!__pyx_cur_scope->__pyx_v_cover)) { __Pyx_RaiseClosureNameError("cover"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2001; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+      __pyx_t_4 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2001; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_1 = __Pyx_GetItemInt(__pyx_t_4, 4, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1998; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = __Pyx_GetItemInt(__pyx_t_4, 4, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2001; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-      __pyx_t_4 = PyNumber_Add(__pyx_t_1, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1998; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyNumber_Add(__pyx_t_1, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2001; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-      __pyx_t_1 = PyTuple_New(3); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1998; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyTuple_New(3); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2001; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
       __Pyx_INCREF(((PyObject *)__pyx_cur_scope->__pyx_v_cover));
       PyTuple_SET_ITEM(__pyx_t_1, 0, ((PyObject *)__pyx_cur_scope->__pyx_v_cover));
@@ -60875,25 +61047,25 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
       PyTuple_SET_ITEM(__pyx_t_1, 2, __pyx_v_link_j);
       __Pyx_GIVEREF(__pyx_v_link_j);
       __pyx_t_4 = 0;
-      __pyx_t_4 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1998; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2001; __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_1)); __pyx_t_1 = 0;
-      __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1998; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2001; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       __pyx_t_3 = ((!__pyx_t_6) != 0);
       if (__pyx_t_3) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1999
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2002
  *                 if link_j > nt[-1][4]:
  *                     if not span_check(cover, nt[-1][4] + 1, link_j):
  *                         nt[-1] = old_last_nt             # <<<<<<<<<<<<<<
  *                         return
  *                     span_inc(cover, nt[-1][4] + 1, link_j)
  */
-        if (__Pyx_SetItemInt(__pyx_v_nt, -1, __pyx_v_old_last_nt, sizeof(long), PyInt_FromLong, 0, 1, 1) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1999; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        if (__Pyx_SetItemInt(__pyx_v_nt, -1, __pyx_v_old_last_nt, sizeof(long), PyInt_FromLong, 0, 1, 1) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2002; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2000
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2003
  *                     if not span_check(cover, nt[-1][4] + 1, link_j):
  *                         nt[-1] = old_last_nt
  *                         return             # <<<<<<<<<<<<<<
@@ -60907,24 +61079,24 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
       }
       __pyx_L31:;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2001
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2004
  *                         nt[-1] = old_last_nt
  *                         return
  *                     span_inc(cover, nt[-1][4] + 1, link_j)             # <<<<<<<<<<<<<<
  *                     span_inc(e_nt_cover, nt[-1][4] + 1, link_j)
  *                     nt[-1][4] = link_j
  */
-      __pyx_t_4 = __Pyx_GetModuleGlobalName(__pyx_n_s__span_inc); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2001; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = __Pyx_GetModuleGlobalName(__pyx_n_s__span_inc); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2004; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2001; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2004; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
-      __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_1, 4, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2001; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_1, 4, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2004; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-      __pyx_t_1 = PyNumber_Add(__pyx_t_2, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2001; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyNumber_Add(__pyx_t_2, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2004; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-      __pyx_t_2 = PyTuple_New(3); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2001; __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 = 2004; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_INCREF(((PyObject *)__pyx_cur_scope->__pyx_v_cover));
       PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_cur_scope->__pyx_v_cover));
@@ -60935,31 +61107,31 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
       PyTuple_SET_ITEM(__pyx_t_2, 2, __pyx_v_link_j);
       __Pyx_GIVEREF(__pyx_v_link_j);
       __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[8]; __pyx_lineno = 2001; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2004; __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;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2002
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2005
  *                         return
  *                     span_inc(cover, nt[-1][4] + 1, link_j)
  *                     span_inc(e_nt_cover, nt[-1][4] + 1, link_j)             # <<<<<<<<<<<<<<
  *                     nt[-1][4] = link_j
  *                 if links and f_j >= new_min_bound:
  */
-      __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s__span_inc); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2002; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s__span_inc); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2005; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
-      if (unlikely(!__pyx_cur_scope->__pyx_v_e_nt_cover)) { __Pyx_RaiseClosureNameError("e_nt_cover"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2002; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
-      __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2002; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      if (unlikely(!__pyx_cur_scope->__pyx_v_e_nt_cover)) { __Pyx_RaiseClosureNameError("e_nt_cover"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2005; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+      __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2005; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_2, 4, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2002; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_2, 4, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2005; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-      __pyx_t_2 = PyNumber_Add(__pyx_t_4, __pyx_int_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2002; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyNumber_Add(__pyx_t_4, __pyx_int_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2005; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-      __pyx_t_4 = PyTuple_New(3); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2002; __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 = 2005; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_INCREF(((PyObject *)__pyx_cur_scope->__pyx_v_e_nt_cover));
       PyTuple_SET_ITEM(__pyx_t_4, 0, ((PyObject *)__pyx_cur_scope->__pyx_v_e_nt_cover));
@@ -60970,38 +61142,38 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
       PyTuple_SET_ITEM(__pyx_t_4, 2, __pyx_v_link_j);
       __Pyx_GIVEREF(__pyx_v_link_j);
       __pyx_t_2 = 0;
-      __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 = 2002; __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 = 2005; __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;
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2003
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2006
  *                     span_inc(cover, nt[-1][4] + 1, link_j)
  *                     span_inc(e_nt_cover, nt[-1][4] + 1, link_j)
  *                     nt[-1][4] = link_j             # <<<<<<<<<<<<<<
  *                 if links and f_j >= new_min_bound:
  *                     rules.add(self.form_rule(f_i, new_e_i, f_words[f_i:f_j + 1], e_words[new_e_i:new_e_j + 1], nt, links))
  */
-      __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2003; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2006; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      if (__Pyx_SetItemInt(__pyx_t_2, 4, __pyx_v_link_j, sizeof(long), PyInt_FromLong, 0, 0, 1) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2003; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      if (__Pyx_SetItemInt(__pyx_t_2, 4, __pyx_v_link_j, sizeof(long), PyInt_FromLong, 0, 0, 1) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2006; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       goto __pyx_L30;
     }
     __pyx_L30:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2004
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2007
  *                     span_inc(e_nt_cover, nt[-1][4] + 1, link_j)
  *                     nt[-1][4] = link_j
  *                 if links and f_j >= new_min_bound:             # <<<<<<<<<<<<<<
  *                     rules.add(self.form_rule(f_i, new_e_i, f_words[f_i:f_j + 1], e_words[new_e_i:new_e_j + 1], nt, links))
  *                 extract(f_i, f_j + 1, new_e_i, new_e_j, new_min_bound, wc, links, nt, False)
  */
-    __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_v_links); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2004; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_v_links); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2007; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     if (__pyx_t_3) {
-      __pyx_t_2 = PyObject_RichCompare(__pyx_v_f_j, __pyx_v_new_min_bound, Py_GE); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2004; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2004; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyObject_RichCompare(__pyx_v_f_j, __pyx_v_new_min_bound, Py_GE); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2007; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2007; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       __pyx_t_5 = __pyx_t_6;
     } else {
@@ -61009,33 +61181,33 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
     }
     if (__pyx_t_5) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2005
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2008
  *                     nt[-1][4] = link_j
  *                 if links and f_j >= new_min_bound:
  *                     rules.add(self.form_rule(f_i, new_e_i, f_words[f_i:f_j + 1], e_words[new_e_i:new_e_j + 1], nt, links))             # <<<<<<<<<<<<<<
  *                 extract(f_i, f_j + 1, new_e_i, new_e_j, new_min_bound, wc, links, nt, False)
  *                 nt[-1] = old_last_nt
  */
-      if (unlikely(!__pyx_cur_scope->__pyx_v_rules)) { __Pyx_RaiseClosureNameError("rules"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2005; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+      if (unlikely(!__pyx_cur_scope->__pyx_v_rules)) { __Pyx_RaiseClosureNameError("rules"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2008; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
       if (unlikely(((PyObject *)__pyx_cur_scope->__pyx_v_rules) == Py_None)) {
         PyErr_Format(PyExc_AttributeError, "'NoneType' object has no attribute '%s'", "add");
-        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2005; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2008; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       }
-      __pyx_t_2 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_cur_scope->__pyx_v_self), __pyx_n_s__form_rule); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2005; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_cur_scope->__pyx_v_self), __pyx_n_s__form_rule); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2008; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      if (unlikely(!__pyx_cur_scope->__pyx_v_f_words)) { __Pyx_RaiseClosureNameError("f_words"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2005; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
-      __pyx_t_4 = PyNumber_Add(__pyx_v_f_j, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2005; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      if (unlikely(!__pyx_cur_scope->__pyx_v_f_words)) { __Pyx_RaiseClosureNameError("f_words"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2008; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+      __pyx_t_4 = PyNumber_Add(__pyx_v_f_j, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2008; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_1 = __Pyx_PyObject_GetSlice(__pyx_cur_scope->__pyx_v_f_words, 0, 0, &__pyx_v_f_i, &__pyx_t_4, NULL, 0, 0, 1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2005; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = __Pyx_PyObject_GetSlice(__pyx_cur_scope->__pyx_v_f_words, 0, 0, &__pyx_v_f_i, &__pyx_t_4, NULL, 0, 0, 1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2008; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-      if (unlikely(!__pyx_cur_scope->__pyx_v_e_words)) { __Pyx_RaiseClosureNameError("e_words"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2005; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
-      __pyx_t_4 = PyNumber_Add(__pyx_v_new_e_j, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2005; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      if (unlikely(!__pyx_cur_scope->__pyx_v_e_words)) { __Pyx_RaiseClosureNameError("e_words"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2008; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+      __pyx_t_4 = PyNumber_Add(__pyx_v_new_e_j, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2008; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_8 = __Pyx_PyObject_GetSlice(__pyx_cur_scope->__pyx_v_e_words, 0, 0, &__pyx_v_new_e_i, &__pyx_t_4, NULL, 0, 0, 1); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2005; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = __Pyx_PyObject_GetSlice(__pyx_cur_scope->__pyx_v_e_words, 0, 0, &__pyx_v_new_e_i, &__pyx_t_4, NULL, 0, 0, 1); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2008; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_8);
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-      __pyx_t_4 = PyTuple_New(6); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2005; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyTuple_New(6); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2008; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_INCREF(__pyx_v_f_i);
       PyTuple_SET_ITEM(__pyx_t_4, 0, __pyx_v_f_i);
@@ -61055,80 +61227,80 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
       __Pyx_GIVEREF(__pyx_v_links);
       __pyx_t_1 = 0;
       __pyx_t_8 = 0;
-      __pyx_t_8 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2005; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2008; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_8);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
-      __pyx_t_13 = PySet_Add(__pyx_cur_scope->__pyx_v_rules, __pyx_t_8); if (unlikely(__pyx_t_13 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2005; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_13 = PySet_Add(__pyx_cur_scope->__pyx_v_rules, __pyx_t_8); if (unlikely(__pyx_t_13 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2008; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
       goto __pyx_L32;
     }
     __pyx_L32:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2006
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2009
  *                 if links and f_j >= new_min_bound:
  *                     rules.add(self.form_rule(f_i, new_e_i, f_words[f_i:f_j + 1], e_words[new_e_i:new_e_j + 1], nt, links))
  *                 extract(f_i, f_j + 1, new_e_i, new_e_j, new_min_bound, wc, links, nt, False)             # <<<<<<<<<<<<<<
  *                 nt[-1] = old_last_nt
  *                 if link_i < nt[-1][3]:
  */
-    __pyx_t_8 = PyNumber_Add(__pyx_v_f_j, __pyx_int_1); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2006; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_8 = PyNumber_Add(__pyx_v_f_j, __pyx_int_1); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2009; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_8);
-    __pyx_t_4 = __Pyx_PyBool_FromLong(0); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2006; __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 = 2009; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
-    if (unlikely(!__pyx_cur_scope->__pyx_v_extract)) { __Pyx_RaiseClosureNameError("extract"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2006; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
-    __pyx_t_2 = __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instance_extract(__pyx_cur_scope->__pyx_v_extract, __pyx_v_f_i, __pyx_t_8, __pyx_v_new_e_i, __pyx_v_new_e_j, __pyx_v_new_min_bound, __pyx_v_wc, __pyx_v_links, __pyx_v_nt, __pyx_t_4); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2006; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (unlikely(!__pyx_cur_scope->__pyx_v_extract)) { __Pyx_RaiseClosureNameError("extract"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2009; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+    __pyx_t_2 = __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instance_extract(__pyx_cur_scope->__pyx_v_extract, __pyx_v_f_i, __pyx_t_8, __pyx_v_new_e_i, __pyx_v_new_e_j, __pyx_v_new_min_bound, __pyx_v_wc, __pyx_v_links, __pyx_v_nt, __pyx_t_4); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2009; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2007
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2010
  *                     rules.add(self.form_rule(f_i, new_e_i, f_words[f_i:f_j + 1], e_words[new_e_i:new_e_j + 1], nt, links))
  *                 extract(f_i, f_j + 1, new_e_i, new_e_j, new_min_bound, wc, links, nt, False)
  *                 nt[-1] = old_last_nt             # <<<<<<<<<<<<<<
  *                 if link_i < nt[-1][3]:
  *                     span_dec(cover, link_i, nt[-1][3] - 1)
  */
-    if (__Pyx_SetItemInt(__pyx_v_nt, -1, __pyx_v_old_last_nt, sizeof(long), PyInt_FromLong, 0, 1, 1) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2007; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (__Pyx_SetItemInt(__pyx_v_nt, -1, __pyx_v_old_last_nt, sizeof(long), PyInt_FromLong, 0, 1, 1) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2010; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2008
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2011
  *                 extract(f_i, f_j + 1, new_e_i, new_e_j, new_min_bound, wc, links, nt, False)
  *                 nt[-1] = old_last_nt
  *                 if link_i < nt[-1][3]:             # <<<<<<<<<<<<<<
  *                     span_dec(cover, link_i, nt[-1][3] - 1)
  *                     span_dec(e_nt_cover, link_i, nt[-1][3] - 1)
  */
-    __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2008; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2011; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_2, 3, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2008; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_2, 3, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2011; __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_RichCompare(__pyx_v_link_i, __pyx_t_4, Py_LT); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2008; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyObject_RichCompare(__pyx_v_link_i, __pyx_t_4, Py_LT); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2011; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2008; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2011; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     if (__pyx_t_5) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2009
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2012
  *                 nt[-1] = old_last_nt
  *                 if link_i < nt[-1][3]:
  *                     span_dec(cover, link_i, nt[-1][3] - 1)             # <<<<<<<<<<<<<<
  *                     span_dec(e_nt_cover, link_i, nt[-1][3] - 1)
  *                 if link_j > nt[-1][4]:
  */
-      __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s__span_dec); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2009; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s__span_dec); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2012; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      if (unlikely(!__pyx_cur_scope->__pyx_v_cover)) { __Pyx_RaiseClosureNameError("cover"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2009; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
-      __pyx_t_4 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2009; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      if (unlikely(!__pyx_cur_scope->__pyx_v_cover)) { __Pyx_RaiseClosureNameError("cover"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2012; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+      __pyx_t_4 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2012; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_8 = __Pyx_GetItemInt(__pyx_t_4, 3, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_8) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2009; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = __Pyx_GetItemInt(__pyx_t_4, 3, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_8) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2012; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_8);
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-      __pyx_t_4 = PyNumber_Subtract(__pyx_t_8, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2009; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyNumber_Subtract(__pyx_t_8, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2012; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-      __pyx_t_8 = PyTuple_New(3); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2009; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = PyTuple_New(3); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2012; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_8);
       __Pyx_INCREF(((PyObject *)__pyx_cur_scope->__pyx_v_cover));
       PyTuple_SET_ITEM(__pyx_t_8, 0, ((PyObject *)__pyx_cur_scope->__pyx_v_cover));
@@ -61139,31 +61311,31 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
       PyTuple_SET_ITEM(__pyx_t_8, 2, __pyx_t_4);
       __Pyx_GIVEREF(__pyx_t_4);
       __pyx_t_4 = 0;
-      __pyx_t_4 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_8), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2009; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_8), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2012; __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_8)); __pyx_t_8 = 0;
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2010
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2013
  *                 if link_i < nt[-1][3]:
  *                     span_dec(cover, link_i, nt[-1][3] - 1)
  *                     span_dec(e_nt_cover, link_i, nt[-1][3] - 1)             # <<<<<<<<<<<<<<
  *                 if link_j > nt[-1][4]:
  *                     span_dec(cover, nt[-1][4] + 1, link_j)
  */
-      __pyx_t_4 = __Pyx_GetModuleGlobalName(__pyx_n_s__span_dec); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2010; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = __Pyx_GetModuleGlobalName(__pyx_n_s__span_dec); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2013; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
-      if (unlikely(!__pyx_cur_scope->__pyx_v_e_nt_cover)) { __Pyx_RaiseClosureNameError("e_nt_cover"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2010; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
-      __pyx_t_8 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_8) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2010; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      if (unlikely(!__pyx_cur_scope->__pyx_v_e_nt_cover)) { __Pyx_RaiseClosureNameError("e_nt_cover"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2013; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+      __pyx_t_8 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_8) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2013; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_8);
-      __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_8, 3, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2010; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_8, 3, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2013; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-      __pyx_t_8 = PyNumber_Subtract(__pyx_t_2, __pyx_int_1); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2010; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = PyNumber_Subtract(__pyx_t_2, __pyx_int_1); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2013; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_8);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-      __pyx_t_2 = PyTuple_New(3); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2010; __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 = 2013; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_INCREF(((PyObject *)__pyx_cur_scope->__pyx_v_e_nt_cover));
       PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_cur_scope->__pyx_v_e_nt_cover));
@@ -61174,7 +61346,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
       PyTuple_SET_ITEM(__pyx_t_2, 2, __pyx_t_8);
       __Pyx_GIVEREF(__pyx_t_8);
       __pyx_t_8 = 0;
-      __pyx_t_8 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2010; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2013; __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_2)); __pyx_t_2 = 0;
@@ -61183,43 +61355,43 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
     }
     __pyx_L33:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2011
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2014
  *                     span_dec(cover, link_i, nt[-1][3] - 1)
  *                     span_dec(e_nt_cover, link_i, nt[-1][3] - 1)
  *                 if link_j > nt[-1][4]:             # <<<<<<<<<<<<<<
  *                     span_dec(cover, nt[-1][4] + 1, link_j)
  *                     span_dec(e_nt_cover, nt[-1][4] + 1, link_j)
  */
-    __pyx_t_8 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_8) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2011; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_8 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_8) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2014; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_8);
-    __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_8, 4, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2011; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_8, 4, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2014; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-    __pyx_t_8 = PyObject_RichCompare(__pyx_v_link_j, __pyx_t_2, Py_GT); __Pyx_XGOTREF(__pyx_t_8); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2011; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_8 = PyObject_RichCompare(__pyx_v_link_j, __pyx_t_2, Py_GT); __Pyx_XGOTREF(__pyx_t_8); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2014; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_8); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2011; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_8); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2014; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
     if (__pyx_t_5) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2012
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2015
  *                     span_dec(e_nt_cover, link_i, nt[-1][3] - 1)
  *                 if link_j > nt[-1][4]:
  *                     span_dec(cover, nt[-1][4] + 1, link_j)             # <<<<<<<<<<<<<<
  *                     span_dec(e_nt_cover, nt[-1][4] + 1, link_j)
  *             # Try to start a new non-terminal, extract, extend
  */
-      __pyx_t_8 = __Pyx_GetModuleGlobalName(__pyx_n_s__span_dec); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2012; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = __Pyx_GetModuleGlobalName(__pyx_n_s__span_dec); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2015; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_8);
-      if (unlikely(!__pyx_cur_scope->__pyx_v_cover)) { __Pyx_RaiseClosureNameError("cover"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2012; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
-      __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2012; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      if (unlikely(!__pyx_cur_scope->__pyx_v_cover)) { __Pyx_RaiseClosureNameError("cover"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2015; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+      __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2015; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_2, 4, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2012; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_2, 4, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2015; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-      __pyx_t_2 = PyNumber_Add(__pyx_t_4, __pyx_int_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2012; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyNumber_Add(__pyx_t_4, __pyx_int_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2015; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-      __pyx_t_4 = PyTuple_New(3); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2012; __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 = 2015; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_INCREF(((PyObject *)__pyx_cur_scope->__pyx_v_cover));
       PyTuple_SET_ITEM(__pyx_t_4, 0, ((PyObject *)__pyx_cur_scope->__pyx_v_cover));
@@ -61230,31 +61402,31 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
       PyTuple_SET_ITEM(__pyx_t_4, 2, __pyx_v_link_j);
       __Pyx_GIVEREF(__pyx_v_link_j);
       __pyx_t_2 = 0;
-      __pyx_t_2 = PyObject_Call(__pyx_t_8, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2012; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyObject_Call(__pyx_t_8, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2015; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
       __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2013
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2016
  *                 if link_j > nt[-1][4]:
  *                     span_dec(cover, nt[-1][4] + 1, link_j)
  *                     span_dec(e_nt_cover, nt[-1][4] + 1, link_j)             # <<<<<<<<<<<<<<
  *             # Try to start a new non-terminal, extract, extend
  *             if (not nt or f_j - nt[-1][2] > 1) and wc < self.max_length and len(nt) < self.max_nonterminals:
  */
-      __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s__span_dec); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2013; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s__span_dec); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2016; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      if (unlikely(!__pyx_cur_scope->__pyx_v_e_nt_cover)) { __Pyx_RaiseClosureNameError("e_nt_cover"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2013; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
-      __pyx_t_4 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2013; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      if (unlikely(!__pyx_cur_scope->__pyx_v_e_nt_cover)) { __Pyx_RaiseClosureNameError("e_nt_cover"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2016; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+      __pyx_t_4 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2016; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_8 = __Pyx_GetItemInt(__pyx_t_4, 4, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_8) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2013; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = __Pyx_GetItemInt(__pyx_t_4, 4, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_8) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2016; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_8);
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-      __pyx_t_4 = PyNumber_Add(__pyx_t_8, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2013; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyNumber_Add(__pyx_t_8, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2016; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-      __pyx_t_8 = PyTuple_New(3); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2013; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = PyTuple_New(3); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2016; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_8);
       __Pyx_INCREF(((PyObject *)__pyx_cur_scope->__pyx_v_e_nt_cover));
       PyTuple_SET_ITEM(__pyx_t_8, 0, ((PyObject *)__pyx_cur_scope->__pyx_v_e_nt_cover));
@@ -61265,7 +61437,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
       PyTuple_SET_ITEM(__pyx_t_8, 2, __pyx_v_link_j);
       __Pyx_GIVEREF(__pyx_v_link_j);
       __pyx_t_4 = 0;
-      __pyx_t_4 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_8), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2013; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_8), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2016; __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_8)); __pyx_t_8 = 0;
@@ -61277,41 +61449,41 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
   }
   __pyx_L27:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2015
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2018
  *                     span_dec(e_nt_cover, nt[-1][4] + 1, link_j)
  *             # Try to start a new non-terminal, extract, extend
  *             if (not nt or f_j - nt[-1][2] > 1) and wc < self.max_length and len(nt) < self.max_nonterminals:             # <<<<<<<<<<<<<<
  *                 # Check for collisions
  *                 if not span_check(cover, link_i, link_j):
  */
-  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_v_nt); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2015; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_v_nt); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2018; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_t_3 = (!__pyx_t_5);
   if (!__pyx_t_3) {
-    __pyx_t_4 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2015; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2018; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_8 = __Pyx_GetItemInt(__pyx_t_4, 2, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_8) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2015; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_8 = __Pyx_GetItemInt(__pyx_t_4, 2, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_8) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2018; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_8);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    __pyx_t_4 = PyNumber_Subtract(__pyx_v_f_j, __pyx_t_8); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2015; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyNumber_Subtract(__pyx_v_f_j, __pyx_t_8); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2018; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-    __pyx_t_8 = PyObject_RichCompare(__pyx_t_4, __pyx_int_1, Py_GT); __Pyx_XGOTREF(__pyx_t_8); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2015; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_8 = PyObject_RichCompare(__pyx_t_4, __pyx_int_1, Py_GT); __Pyx_XGOTREF(__pyx_t_8); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2018; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_8); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2015; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_8); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2018; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
     __pyx_t_6 = __pyx_t_5;
   } else {
     __pyx_t_6 = __pyx_t_3;
   }
   if (__pyx_t_6) {
-    __pyx_t_8 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_self->max_length); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2015; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_8 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_self->max_length); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2018; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_8);
-    __pyx_t_4 = PyObject_RichCompare(__pyx_v_wc, __pyx_t_8, Py_LT); __Pyx_XGOTREF(__pyx_t_4); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2015; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyObject_RichCompare(__pyx_v_wc, __pyx_t_8, Py_LT); __Pyx_XGOTREF(__pyx_t_4); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2018; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-    __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2015; __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[8]; __pyx_lineno = 2018; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     if (__pyx_t_3) {
-      __pyx_t_7 = PyObject_Length(__pyx_v_nt); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2015; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_7 = PyObject_Length(__pyx_v_nt); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2018; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __pyx_t_5 = (__pyx_t_7 < __pyx_cur_scope->__pyx_v_self->max_nonterminals);
       __pyx_t_15 = __pyx_t_5;
     } else {
@@ -61323,17 +61495,17 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
   }
   if (__pyx_t_3) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2017
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2020
  *             if (not nt or f_j - nt[-1][2] > 1) and wc < self.max_length and len(nt) < self.max_nonterminals:
  *                 # Check for collisions
  *                 if not span_check(cover, link_i, link_j):             # <<<<<<<<<<<<<<
  *                     return
  *                 span_inc(cover, link_i, link_j)
  */
-    __pyx_t_4 = __Pyx_GetModuleGlobalName(__pyx_n_s__span_check); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2017; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = __Pyx_GetModuleGlobalName(__pyx_n_s__span_check); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2020; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
-    if (unlikely(!__pyx_cur_scope->__pyx_v_cover)) { __Pyx_RaiseClosureNameError("cover"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2017; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
-    __pyx_t_8 = PyTuple_New(3); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2017; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (unlikely(!__pyx_cur_scope->__pyx_v_cover)) { __Pyx_RaiseClosureNameError("cover"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2020; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+    __pyx_t_8 = PyTuple_New(3); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2020; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_8);
     __Pyx_INCREF(((PyObject *)__pyx_cur_scope->__pyx_v_cover));
     PyTuple_SET_ITEM(__pyx_t_8, 0, ((PyObject *)__pyx_cur_scope->__pyx_v_cover));
@@ -61344,16 +61516,16 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
     __Pyx_INCREF(__pyx_v_link_j);
     PyTuple_SET_ITEM(__pyx_t_8, 2, __pyx_v_link_j);
     __Pyx_GIVEREF(__pyx_v_link_j);
-    __pyx_t_2 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_8), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2017; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_8), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2020; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     __Pyx_DECREF(((PyObject *)__pyx_t_8)); __pyx_t_8 = 0;
-    __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2017; __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 = 2020; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     __pyx_t_6 = ((!__pyx_t_3) != 0);
     if (__pyx_t_6) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2018
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2021
  *                 # Check for collisions
  *                 if not span_check(cover, link_i, link_j):
  *                     return             # <<<<<<<<<<<<<<
@@ -61367,16 +61539,16 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
     }
     __pyx_L36:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2019
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2022
  *                 if not span_check(cover, link_i, link_j):
  *                     return
  *                 span_inc(cover, link_i, link_j)             # <<<<<<<<<<<<<<
  *                 span_inc(e_nt_cover, link_i, link_j)
  *                 nt.append([(nt[-1][0] + 1) if nt else 1, f_j, f_j, link_i, link_j])
  */
-    __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s__span_inc); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2019; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s__span_inc); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2022; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_8 = PyTuple_New(3); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2019; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_8 = PyTuple_New(3); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2022; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_8);
     __Pyx_INCREF(((PyObject *)__pyx_cur_scope->__pyx_v_cover));
     PyTuple_SET_ITEM(__pyx_t_8, 0, ((PyObject *)__pyx_cur_scope->__pyx_v_cover));
@@ -61387,23 +61559,23 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
     __Pyx_INCREF(__pyx_v_link_j);
     PyTuple_SET_ITEM(__pyx_t_8, 2, __pyx_v_link_j);
     __Pyx_GIVEREF(__pyx_v_link_j);
-    __pyx_t_4 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_8), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2019; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_8), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2022; __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_8)); __pyx_t_8 = 0;
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2020
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2023
  *                     return
  *                 span_inc(cover, link_i, link_j)
  *                 span_inc(e_nt_cover, link_i, link_j)             # <<<<<<<<<<<<<<
  *                 nt.append([(nt[-1][0] + 1) if nt else 1, f_j, f_j, link_i, link_j])
  *                 # Require at least one word in phrase
  */
-    __pyx_t_4 = __Pyx_GetModuleGlobalName(__pyx_n_s__span_inc); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2020; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = __Pyx_GetModuleGlobalName(__pyx_n_s__span_inc); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2023; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
-    if (unlikely(!__pyx_cur_scope->__pyx_v_e_nt_cover)) { __Pyx_RaiseClosureNameError("e_nt_cover"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2020; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
-    __pyx_t_8 = PyTuple_New(3); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2020; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (unlikely(!__pyx_cur_scope->__pyx_v_e_nt_cover)) { __Pyx_RaiseClosureNameError("e_nt_cover"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2023; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+    __pyx_t_8 = PyTuple_New(3); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2023; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_8);
     __Pyx_INCREF(((PyObject *)__pyx_cur_scope->__pyx_v_e_nt_cover));
     PyTuple_SET_ITEM(__pyx_t_8, 0, ((PyObject *)__pyx_cur_scope->__pyx_v_e_nt_cover));
@@ -61414,27 +61586,27 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
     __Pyx_INCREF(__pyx_v_link_j);
     PyTuple_SET_ITEM(__pyx_t_8, 2, __pyx_v_link_j);
     __Pyx_GIVEREF(__pyx_v_link_j);
-    __pyx_t_2 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_8), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2020; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_8), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2023; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     __Pyx_DECREF(((PyObject *)__pyx_t_8)); __pyx_t_8 = 0;
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2021
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2024
  *                 span_inc(cover, link_i, link_j)
  *                 span_inc(e_nt_cover, link_i, link_j)
  *                 nt.append([(nt[-1][0] + 1) if nt else 1, f_j, f_j, link_i, link_j])             # <<<<<<<<<<<<<<
  *                 # Require at least one word in phrase
  *                 if links and f_j >= new_min_bound:
  */
-    __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_v_nt); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2021; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_v_nt); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2024; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     if (__pyx_t_6) {
-      __pyx_t_8 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_8) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2021; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_8) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2024; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_8);
-      __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_8, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2021; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_8, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2024; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-      __pyx_t_8 = PyNumber_Add(__pyx_t_4, __pyx_int_1); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2021; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = PyNumber_Add(__pyx_t_4, __pyx_int_1); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2024; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_8);
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       __pyx_t_2 = __pyx_t_8;
@@ -61443,7 +61615,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
       __Pyx_INCREF(__pyx_int_1);
       __pyx_t_2 = __pyx_int_1;
     }
-    __pyx_t_8 = PyList_New(5); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2021; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_8 = PyList_New(5); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2024; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_8);
     PyList_SET_ITEM(__pyx_t_8, 0, __pyx_t_2);
     __Pyx_GIVEREF(__pyx_t_2);
@@ -61460,22 +61632,22 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
     PyList_SET_ITEM(__pyx_t_8, 4, __pyx_v_link_j);
     __Pyx_GIVEREF(__pyx_v_link_j);
     __pyx_t_2 = 0;
-    __pyx_t_2 = __Pyx_PyObject_Append(__pyx_v_nt, ((PyObject *)__pyx_t_8)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2021; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = __Pyx_PyObject_Append(__pyx_v_nt, ((PyObject *)__pyx_t_8)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2024; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(((PyObject *)__pyx_t_8)); __pyx_t_8 = 0;
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2023
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2026
  *                 nt.append([(nt[-1][0] + 1) if nt else 1, f_j, f_j, link_i, link_j])
  *                 # Require at least one word in phrase
  *                 if links and f_j >= new_min_bound:             # <<<<<<<<<<<<<<
  *                     rules.add(self.form_rule(f_i, new_e_i, f_words[f_i:f_j + 1], e_words[new_e_i:new_e_j + 1], nt, links))
  *                 extract(f_i, f_j + 1, new_e_i, new_e_j, new_min_bound, wc + 1, links, nt, False)
  */
-    __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_v_links); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2023; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_v_links); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2026; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     if (__pyx_t_6) {
-      __pyx_t_2 = PyObject_RichCompare(__pyx_v_f_j, __pyx_v_new_min_bound, Py_GE); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2023; __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 = 2023; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyObject_RichCompare(__pyx_v_f_j, __pyx_v_new_min_bound, Py_GE); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2026; __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 = 2026; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       __pyx_t_15 = __pyx_t_3;
     } else {
@@ -61483,33 +61655,33 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
     }
     if (__pyx_t_15) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2024
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2027
  *                 # Require at least one word in phrase
  *                 if links and f_j >= new_min_bound:
  *                     rules.add(self.form_rule(f_i, new_e_i, f_words[f_i:f_j + 1], e_words[new_e_i:new_e_j + 1], nt, links))             # <<<<<<<<<<<<<<
  *                 extract(f_i, f_j + 1, new_e_i, new_e_j, new_min_bound, wc + 1, links, nt, False)
  *                 nt.pop()
  */
-      if (unlikely(!__pyx_cur_scope->__pyx_v_rules)) { __Pyx_RaiseClosureNameError("rules"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2024; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+      if (unlikely(!__pyx_cur_scope->__pyx_v_rules)) { __Pyx_RaiseClosureNameError("rules"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2027; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
       if (unlikely(((PyObject *)__pyx_cur_scope->__pyx_v_rules) == Py_None)) {
         PyErr_Format(PyExc_AttributeError, "'NoneType' object has no attribute '%s'", "add");
-        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2024; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2027; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       }
-      __pyx_t_2 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_cur_scope->__pyx_v_self), __pyx_n_s__form_rule); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2024; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_cur_scope->__pyx_v_self), __pyx_n_s__form_rule); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2027; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      if (unlikely(!__pyx_cur_scope->__pyx_v_f_words)) { __Pyx_RaiseClosureNameError("f_words"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2024; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
-      __pyx_t_8 = PyNumber_Add(__pyx_v_f_j, __pyx_int_1); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2024; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      if (unlikely(!__pyx_cur_scope->__pyx_v_f_words)) { __Pyx_RaiseClosureNameError("f_words"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2027; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+      __pyx_t_8 = PyNumber_Add(__pyx_v_f_j, __pyx_int_1); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2027; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_8);
-      __pyx_t_4 = __Pyx_PyObject_GetSlice(__pyx_cur_scope->__pyx_v_f_words, 0, 0, &__pyx_v_f_i, &__pyx_t_8, NULL, 0, 0, 1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2024; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = __Pyx_PyObject_GetSlice(__pyx_cur_scope->__pyx_v_f_words, 0, 0, &__pyx_v_f_i, &__pyx_t_8, NULL, 0, 0, 1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2027; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-      if (unlikely(!__pyx_cur_scope->__pyx_v_e_words)) { __Pyx_RaiseClosureNameError("e_words"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2024; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
-      __pyx_t_8 = PyNumber_Add(__pyx_v_new_e_j, __pyx_int_1); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2024; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      if (unlikely(!__pyx_cur_scope->__pyx_v_e_words)) { __Pyx_RaiseClosureNameError("e_words"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2027; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+      __pyx_t_8 = PyNumber_Add(__pyx_v_new_e_j, __pyx_int_1); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2027; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_8);
-      __pyx_t_1 = __Pyx_PyObject_GetSlice(__pyx_cur_scope->__pyx_v_e_words, 0, 0, &__pyx_v_new_e_i, &__pyx_t_8, NULL, 0, 0, 1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2024; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = __Pyx_PyObject_GetSlice(__pyx_cur_scope->__pyx_v_e_words, 0, 0, &__pyx_v_new_e_i, &__pyx_t_8, NULL, 0, 0, 1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2027; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
       __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-      __pyx_t_8 = PyTuple_New(6); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2024; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = PyTuple_New(6); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2027; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_8);
       __Pyx_INCREF(__pyx_v_f_i);
       PyTuple_SET_ITEM(__pyx_t_8, 0, __pyx_v_f_i);
@@ -61529,58 +61701,58 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
       __Pyx_GIVEREF(__pyx_v_links);
       __pyx_t_4 = 0;
       __pyx_t_1 = 0;
-      __pyx_t_1 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_8), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2024; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_8), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2027; __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_8)); __pyx_t_8 = 0;
-      __pyx_t_13 = PySet_Add(__pyx_cur_scope->__pyx_v_rules, __pyx_t_1); if (unlikely(__pyx_t_13 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2024; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_13 = PySet_Add(__pyx_cur_scope->__pyx_v_rules, __pyx_t_1); if (unlikely(__pyx_t_13 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2027; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
       goto __pyx_L37;
     }
     __pyx_L37:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2025
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2028
  *                 if links and f_j >= new_min_bound:
  *                     rules.add(self.form_rule(f_i, new_e_i, f_words[f_i:f_j + 1], e_words[new_e_i:new_e_j + 1], nt, links))
  *                 extract(f_i, f_j + 1, new_e_i, new_e_j, new_min_bound, wc + 1, links, nt, False)             # <<<<<<<<<<<<<<
  *                 nt.pop()
  *                 span_dec(cover, link_i, link_j)
  */
-    __pyx_t_1 = PyNumber_Add(__pyx_v_f_j, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2025; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyNumber_Add(__pyx_v_f_j, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2028; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_8 = PyNumber_Add(__pyx_v_wc, __pyx_int_1); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2025; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_8 = PyNumber_Add(__pyx_v_wc, __pyx_int_1); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2028; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_8);
-    __pyx_t_2 = __Pyx_PyBool_FromLong(0); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2025; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = __Pyx_PyBool_FromLong(0); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2028; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    if (unlikely(!__pyx_cur_scope->__pyx_v_extract)) { __Pyx_RaiseClosureNameError("extract"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2025; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
-    __pyx_t_4 = __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instance_extract(__pyx_cur_scope->__pyx_v_extract, __pyx_v_f_i, __pyx_t_1, __pyx_v_new_e_i, __pyx_v_new_e_j, __pyx_v_new_min_bound, __pyx_t_8, __pyx_v_links, __pyx_v_nt, __pyx_t_2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2025; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (unlikely(!__pyx_cur_scope->__pyx_v_extract)) { __Pyx_RaiseClosureNameError("extract"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2028; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+    __pyx_t_4 = __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instance_extract(__pyx_cur_scope->__pyx_v_extract, __pyx_v_f_i, __pyx_t_1, __pyx_v_new_e_i, __pyx_v_new_e_j, __pyx_v_new_min_bound, __pyx_t_8, __pyx_v_links, __pyx_v_nt, __pyx_t_2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2028; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2026
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2029
  *                     rules.add(self.form_rule(f_i, new_e_i, f_words[f_i:f_j + 1], e_words[new_e_i:new_e_j + 1], nt, links))
  *                 extract(f_i, f_j + 1, new_e_i, new_e_j, new_min_bound, wc + 1, links, nt, False)
  *                 nt.pop()             # <<<<<<<<<<<<<<
  *                 span_dec(cover, link_i, link_j)
  *                 span_dec(e_nt_cover, link_i, link_j)
  */
-    __pyx_t_4 = __Pyx_PyObject_Pop(__pyx_v_nt); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2026; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = __Pyx_PyObject_Pop(__pyx_v_nt); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2029; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2027
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2030
  *                 extract(f_i, f_j + 1, new_e_i, new_e_j, new_min_bound, wc + 1, links, nt, False)
  *                 nt.pop()
  *                 span_dec(cover, link_i, link_j)             # <<<<<<<<<<<<<<
  *                 span_dec(e_nt_cover, link_i, link_j)
  * 
  */
-    __pyx_t_4 = __Pyx_GetModuleGlobalName(__pyx_n_s__span_dec); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2027; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = __Pyx_GetModuleGlobalName(__pyx_n_s__span_dec); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2030; __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 = 2027; __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 = 2030; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_INCREF(((PyObject *)__pyx_cur_scope->__pyx_v_cover));
     PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_cur_scope->__pyx_v_cover));
@@ -61591,22 +61763,22 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
     __Pyx_INCREF(__pyx_v_link_j);
     PyTuple_SET_ITEM(__pyx_t_2, 2, __pyx_v_link_j);
     __Pyx_GIVEREF(__pyx_v_link_j);
-    __pyx_t_8 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2027; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_8 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2030; __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_2)); __pyx_t_2 = 0;
     __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2028
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2031
  *                 nt.pop()
  *                 span_dec(cover, link_i, link_j)
  *                 span_dec(e_nt_cover, link_i, link_j)             # <<<<<<<<<<<<<<
  * 
  *         # Try to extract phrases from every f index
  */
-    __pyx_t_8 = __Pyx_GetModuleGlobalName(__pyx_n_s__span_dec); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2028; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_8 = __Pyx_GetModuleGlobalName(__pyx_n_s__span_dec); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2031; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_8);
-    __pyx_t_2 = PyTuple_New(3); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2028; __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 = 2031; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_INCREF(((PyObject *)__pyx_cur_scope->__pyx_v_e_nt_cover));
     PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_cur_scope->__pyx_v_e_nt_cover));
@@ -61617,7 +61789,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
     __Pyx_INCREF(__pyx_v_link_j);
     PyTuple_SET_ITEM(__pyx_t_2, 2, __pyx_v_link_j);
     __Pyx_GIVEREF(__pyx_v_link_j);
-    __pyx_t_4 = PyObject_Call(__pyx_t_8, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2028; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyObject_Call(__pyx_t_8, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2031; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
     __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
@@ -61651,7 +61823,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instanc
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1891
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1894
  *     # Aggregate stats from a training instance
  *     # (Extract rules, update counts)
  *     def add_instance(self, f_words, e_words, alignment, ctx_name=None):             # <<<<<<<<<<<<<<
@@ -61665,16 +61837,22 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_25add_instanc
   PyObject *__pyx_v_f = NULL;
   PyObject *__pyx_v_e = NULL;
   CYTHON_UNUSED PyObject *__pyx_v_f_nt_cover = NULL;
-  long __pyx_v_f_i;
+  PyObject *__pyx_v_f_i = NULL;
   PyObject *__pyx_v_stats = NULL;
   CYTHON_UNUSED PyObject *__pyx_v_lex_i = NULL;
   CYTHON_UNUSED PyObject *__pyx_v_lex_j = NULL;
   PyObject *__pyx_v_rule = NULL;
   PyObject *__pyx_v_f_ph = NULL;
   PyObject *__pyx_v_e_ph = NULL;
-  PyObject *__pyx_v_e_w = NULL;
-  PyObject *__pyx_v_f_w = NULL;
-  CYTHON_UNUSED PyObject *__pyx_v_i = NULL;
+  PyObject *__pyx_v_aligned_fe = NULL;
+  PyObject *__pyx_v_aligned_ef = NULL;
+  PyObject *__pyx_v_i = NULL;
+  PyObject *__pyx_v_j = NULL;
+  PyObject *__pyx_v_e_i_aligned = NULL;
+  PyObject *__pyx_v_lc = NULL;
+  PyObject *__pyx_v_e_i = NULL;
+  PyObject *__pyx_v_f_i_aligned = NULL;
+  CYTHON_UNUSED PyObject *__pyx_v__ = NULL;
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
   PyObject *__pyx_t_1 = NULL;
@@ -61687,12 +61865,12 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_25add_instanc
   PyObject *(*__pyx_t_8)(PyObject *);
   int __pyx_t_9;
   long __pyx_t_10;
-  int __pyx_t_11;
-  PyObject *__pyx_t_12 = NULL;
+  long __pyx_t_11;
+  int __pyx_t_12;
   PyObject *__pyx_t_13 = NULL;
-  PyObject *__pyx_t_14 = NULL;
-  Py_ssize_t __pyx_t_15;
-  PyObject *(*__pyx_t_16)(PyObject *);
+  Py_ssize_t __pyx_t_14;
+  PyObject *(*__pyx_t_15)(PyObject *);
+  PyObject *__pyx_t_16 = NULL;
   int __pyx_lineno = 0;
   const char *__pyx_filename = NULL;
   int __pyx_clineno = 0;
@@ -61713,7 +61891,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_25add_instanc
   __Pyx_INCREF(__pyx_cur_scope->__pyx_v_e_words);
   __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_e_words);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1893
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1896
  *     def add_instance(self, f_words, e_words, alignment, ctx_name=None):
  * 
  *         self.online = True             # <<<<<<<<<<<<<<
@@ -61722,20 +61900,20 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_25add_instanc
  */
   __pyx_cur_scope->__pyx_v_self->online = 1;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1900
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1903
  *         # span more than once.
  *         # (f, e, al, lex_f_i, lex_f_j)
  *         rules = set()             # <<<<<<<<<<<<<<
  * 
  *         f_len = len(f_words)
  */
-  __pyx_t_1 = PySet_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1900; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PySet_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1903; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_1));
   __Pyx_GIVEREF(((PyObject *)__pyx_t_1));
   __pyx_cur_scope->__pyx_v_rules = ((PyObject*)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1902
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1905
  *         rules = set()
  * 
  *         f_len = len(f_words)             # <<<<<<<<<<<<<<
@@ -61744,15 +61922,15 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_25add_instanc
  */
   __pyx_t_1 = __pyx_cur_scope->__pyx_v_f_words;
   __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 = 1902; __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 = 1905; __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[8]; __pyx_lineno = 1902; __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 = 1905; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_GIVEREF(__pyx_t_1);
   __pyx_cur_scope->__pyx_v_f_len = __pyx_t_1;
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1903
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1906
  * 
  *         f_len = len(f_words)
  *         e_len = len(e_words)             # <<<<<<<<<<<<<<
@@ -61761,35 +61939,35 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_25add_instanc
  */
   __pyx_t_1 = __pyx_cur_scope->__pyx_v_e_words;
   __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 = 1903; __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 = 1906; __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[8]; __pyx_lineno = 1903; __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 = 1906; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_v_e_len = __pyx_t_1;
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1906
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1909
  * 
  *         # Pre-compute alignment info
  *         al = [[] for i in range(f_len)]             # <<<<<<<<<<<<<<
  *         fe_span = [[e_len + 1, -1] for i in range(f_len)]
  *         ef_span = [[f_len + 1, -1] for i in range(e_len)]
  */
-  __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1906; __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 = 1909; __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[8]; __pyx_lineno = 1906; __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 = 1909; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_INCREF(__pyx_cur_scope->__pyx_v_f_len);
   PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_cur_scope->__pyx_v_f_len);
   __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_f_len);
-  __pyx_t_4 = PyObject_Call(__pyx_builtin_range, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1906; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_4 = PyObject_Call(__pyx_builtin_range, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1909; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_4);
   __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
   if (PyList_CheckExact(__pyx_t_4) || PyTuple_CheckExact(__pyx_t_4)) {
     __pyx_t_3 = __pyx_t_4; __Pyx_INCREF(__pyx_t_3); __pyx_t_2 = 0;
     __pyx_t_5 = NULL;
   } else {
-    __pyx_t_2 = -1; __pyx_t_3 = PyObject_GetIter(__pyx_t_4); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1906; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = -1; __pyx_t_3 = PyObject_GetIter(__pyx_t_4); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1909; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     __pyx_t_5 = Py_TYPE(__pyx_t_3)->tp_iternext;
   }
@@ -61798,23 +61976,23 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_25add_instanc
     if (!__pyx_t_5 && PyList_CheckExact(__pyx_t_3)) {
       if (__pyx_t_2 >= PyList_GET_SIZE(__pyx_t_3)) break;
       #if CYTHON_COMPILING_IN_CPYTHON
-      __pyx_t_4 = PyList_GET_ITEM(__pyx_t_3, __pyx_t_2); __Pyx_INCREF(__pyx_t_4); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1906; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyList_GET_ITEM(__pyx_t_3, __pyx_t_2); __Pyx_INCREF(__pyx_t_4); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1909; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #else
-      __pyx_t_4 = PySequence_ITEM(__pyx_t_3, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1906; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PySequence_ITEM(__pyx_t_3, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1909; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #endif
     } else if (!__pyx_t_5 && PyTuple_CheckExact(__pyx_t_3)) {
       if (__pyx_t_2 >= PyTuple_GET_SIZE(__pyx_t_3)) break;
       #if CYTHON_COMPILING_IN_CPYTHON
-      __pyx_t_4 = PyTuple_GET_ITEM(__pyx_t_3, __pyx_t_2); __Pyx_INCREF(__pyx_t_4); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1906; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyTuple_GET_ITEM(__pyx_t_3, __pyx_t_2); __Pyx_INCREF(__pyx_t_4); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1909; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #else
-      __pyx_t_4 = PySequence_ITEM(__pyx_t_3, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1906; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PySequence_ITEM(__pyx_t_3, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1909; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #endif
     } else {
       __pyx_t_4 = __pyx_t_5(__pyx_t_3);
       if (unlikely(!__pyx_t_4)) {
         if (PyErr_Occurred()) {
           if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-          else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1906; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1909; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         }
         break;
       }
@@ -61822,9 +62000,9 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_25add_instanc
     }
     __Pyx_XDECREF_SET(__pyx_v_i, __pyx_t_4);
     __pyx_t_4 = 0;
-    __pyx_t_4 = PyList_New(0); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1906; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyList_New(0); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1909; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
-    if (unlikely(__Pyx_ListComp_Append(__pyx_t_1, (PyObject*)__pyx_t_4))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1906; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (unlikely(__Pyx_ListComp_Append(__pyx_t_1, (PyObject*)__pyx_t_4))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1909; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
   }
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
@@ -61832,28 +62010,28 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_25add_instanc
   __pyx_cur_scope->__pyx_v_al = ((PyObject *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1907
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1910
  *         # Pre-compute alignment info
  *         al = [[] for i in range(f_len)]
  *         fe_span = [[e_len + 1, -1] for i in range(f_len)]             # <<<<<<<<<<<<<<
  *         ef_span = [[f_len + 1, -1] for i in range(e_len)]
  *         for f, e in alignment:
  */
-  __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1907; __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 = 1910; __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[8]; __pyx_lineno = 1907; __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 = 1910; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_INCREF(__pyx_cur_scope->__pyx_v_f_len);
   PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_cur_scope->__pyx_v_f_len);
   __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_f_len);
-  __pyx_t_4 = PyObject_Call(__pyx_builtin_range, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1907; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_4 = PyObject_Call(__pyx_builtin_range, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1910; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_4);
   __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
   if (PyList_CheckExact(__pyx_t_4) || PyTuple_CheckExact(__pyx_t_4)) {
     __pyx_t_3 = __pyx_t_4; __Pyx_INCREF(__pyx_t_3); __pyx_t_2 = 0;
     __pyx_t_5 = NULL;
   } else {
-    __pyx_t_2 = -1; __pyx_t_3 = PyObject_GetIter(__pyx_t_4); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1907; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = -1; __pyx_t_3 = PyObject_GetIter(__pyx_t_4); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1910; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     __pyx_t_5 = Py_TYPE(__pyx_t_3)->tp_iternext;
   }
@@ -61862,23 +62040,23 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_25add_instanc
     if (!__pyx_t_5 && PyList_CheckExact(__pyx_t_3)) {
       if (__pyx_t_2 >= PyList_GET_SIZE(__pyx_t_3)) break;
       #if CYTHON_COMPILING_IN_CPYTHON
-      __pyx_t_4 = PyList_GET_ITEM(__pyx_t_3, __pyx_t_2); __Pyx_INCREF(__pyx_t_4); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1907; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyList_GET_ITEM(__pyx_t_3, __pyx_t_2); __Pyx_INCREF(__pyx_t_4); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1910; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #else
-      __pyx_t_4 = PySequence_ITEM(__pyx_t_3, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1907; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PySequence_ITEM(__pyx_t_3, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1910; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #endif
     } else if (!__pyx_t_5 && PyTuple_CheckExact(__pyx_t_3)) {
       if (__pyx_t_2 >= PyTuple_GET_SIZE(__pyx_t_3)) break;
       #if CYTHON_COMPILING_IN_CPYTHON
-      __pyx_t_4 = PyTuple_GET_ITEM(__pyx_t_3, __pyx_t_2); __Pyx_INCREF(__pyx_t_4); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1907; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyTuple_GET_ITEM(__pyx_t_3, __pyx_t_2); __Pyx_INCREF(__pyx_t_4); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1910; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #else
-      __pyx_t_4 = PySequence_ITEM(__pyx_t_3, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1907; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PySequence_ITEM(__pyx_t_3, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1910; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #endif
     } else {
       __pyx_t_4 = __pyx_t_5(__pyx_t_3);
       if (unlikely(!__pyx_t_4)) {
         if (PyErr_Occurred()) {
           if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-          else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1907; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1910; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         }
         break;
       }
@@ -61886,9 +62064,9 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_25add_instanc
     }
     __Pyx_XDECREF_SET(__pyx_v_i, __pyx_t_4);
     __pyx_t_4 = 0;
-    __pyx_t_4 = PyNumber_Add(__pyx_v_e_len, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1907; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyNumber_Add(__pyx_v_e_len, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1910; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_6 = PyList_New(2); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1907; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = PyList_New(2); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1910; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
     PyList_SET_ITEM(__pyx_t_6, 0, __pyx_t_4);
     __Pyx_GIVEREF(__pyx_t_4);
@@ -61896,7 +62074,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_25add_instanc
     PyList_SET_ITEM(__pyx_t_6, 1, __pyx_int_neg_1);
     __Pyx_GIVEREF(__pyx_int_neg_1);
     __pyx_t_4 = 0;
-    if (unlikely(__Pyx_ListComp_Append(__pyx_t_1, (PyObject*)__pyx_t_6))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1907; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (unlikely(__Pyx_ListComp_Append(__pyx_t_1, (PyObject*)__pyx_t_6))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1910; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(((PyObject *)__pyx_t_6)); __pyx_t_6 = 0;
   }
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
@@ -61904,28 +62082,28 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_25add_instanc
   __pyx_cur_scope->__pyx_v_fe_span = ((PyObject*)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1908
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1911
  *         al = [[] for i in range(f_len)]
  *         fe_span = [[e_len + 1, -1] for i in range(f_len)]
  *         ef_span = [[f_len + 1, -1] for i in range(e_len)]             # <<<<<<<<<<<<<<
  *         for f, e in alignment:
  *             al[f].append(e)
  */
-  __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1908; __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 = 1911; __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[8]; __pyx_lineno = 1908; __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 = 1911; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_INCREF(__pyx_v_e_len);
   PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_v_e_len);
   __Pyx_GIVEREF(__pyx_v_e_len);
-  __pyx_t_6 = PyObject_Call(__pyx_builtin_range, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1908; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_6 = PyObject_Call(__pyx_builtin_range, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1911; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_6);
   __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
   if (PyList_CheckExact(__pyx_t_6) || PyTuple_CheckExact(__pyx_t_6)) {
     __pyx_t_3 = __pyx_t_6; __Pyx_INCREF(__pyx_t_3); __pyx_t_2 = 0;
     __pyx_t_5 = NULL;
   } else {
-    __pyx_t_2 = -1; __pyx_t_3 = PyObject_GetIter(__pyx_t_6); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1908; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = -1; __pyx_t_3 = PyObject_GetIter(__pyx_t_6); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1911; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     __pyx_t_5 = Py_TYPE(__pyx_t_3)->tp_iternext;
   }
@@ -61934,23 +62112,23 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_25add_instanc
     if (!__pyx_t_5 && PyList_CheckExact(__pyx_t_3)) {
       if (__pyx_t_2 >= PyList_GET_SIZE(__pyx_t_3)) break;
       #if CYTHON_COMPILING_IN_CPYTHON
-      __pyx_t_6 = PyList_GET_ITEM(__pyx_t_3, __pyx_t_2); __Pyx_INCREF(__pyx_t_6); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1908; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = PyList_GET_ITEM(__pyx_t_3, __pyx_t_2); __Pyx_INCREF(__pyx_t_6); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1911; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #else
-      __pyx_t_6 = PySequence_ITEM(__pyx_t_3, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1908; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = PySequence_ITEM(__pyx_t_3, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1911; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #endif
     } else if (!__pyx_t_5 && PyTuple_CheckExact(__pyx_t_3)) {
       if (__pyx_t_2 >= PyTuple_GET_SIZE(__pyx_t_3)) break;
       #if CYTHON_COMPILING_IN_CPYTHON
-      __pyx_t_6 = PyTuple_GET_ITEM(__pyx_t_3, __pyx_t_2); __Pyx_INCREF(__pyx_t_6); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1908; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = PyTuple_GET_ITEM(__pyx_t_3, __pyx_t_2); __Pyx_INCREF(__pyx_t_6); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1911; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #else
-      __pyx_t_6 = PySequence_ITEM(__pyx_t_3, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1908; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = PySequence_ITEM(__pyx_t_3, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1911; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #endif
     } else {
       __pyx_t_6 = __pyx_t_5(__pyx_t_3);
       if (unlikely(!__pyx_t_6)) {
         if (PyErr_Occurred()) {
           if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-          else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1908; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1911; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         }
         break;
       }
@@ -61958,9 +62136,9 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_25add_instanc
     }
     __Pyx_XDECREF_SET(__pyx_v_i, __pyx_t_6);
     __pyx_t_6 = 0;
-    __pyx_t_6 = PyNumber_Add(__pyx_cur_scope->__pyx_v_f_len, __pyx_int_1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1908; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = PyNumber_Add(__pyx_cur_scope->__pyx_v_f_len, __pyx_int_1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1911; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
-    __pyx_t_4 = PyList_New(2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1908; __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 = 1911; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     PyList_SET_ITEM(__pyx_t_4, 0, __pyx_t_6);
     __Pyx_GIVEREF(__pyx_t_6);
@@ -61968,7 +62146,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_25add_instanc
     PyList_SET_ITEM(__pyx_t_4, 1, __pyx_int_neg_1);
     __Pyx_GIVEREF(__pyx_int_neg_1);
     __pyx_t_6 = 0;
-    if (unlikely(__Pyx_ListComp_Append(__pyx_t_1, (PyObject*)__pyx_t_4))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1908; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (unlikely(__Pyx_ListComp_Append(__pyx_t_1, (PyObject*)__pyx_t_4))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1911; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
   }
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
@@ -61976,7 +62154,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_25add_instanc
   __pyx_cur_scope->__pyx_v_ef_span = ((PyObject*)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1909
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1912
  *         fe_span = [[e_len + 1, -1] for i in range(f_len)]
  *         ef_span = [[f_len + 1, -1] for i in range(e_len)]
  *         for f, e in alignment:             # <<<<<<<<<<<<<<
@@ -61987,7 +62165,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_25add_instanc
     __pyx_t_1 = __pyx_v_alignment; __Pyx_INCREF(__pyx_t_1); __pyx_t_2 = 0;
     __pyx_t_5 = NULL;
   } else {
-    __pyx_t_2 = -1; __pyx_t_1 = PyObject_GetIter(__pyx_v_alignment); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1909; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = -1; __pyx_t_1 = PyObject_GetIter(__pyx_v_alignment); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1912; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __pyx_t_5 = Py_TYPE(__pyx_t_1)->tp_iternext;
   }
@@ -61995,23 +62173,23 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_25add_instanc
     if (!__pyx_t_5 && PyList_CheckExact(__pyx_t_1)) {
       if (__pyx_t_2 >= PyList_GET_SIZE(__pyx_t_1)) break;
       #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++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1909; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = PyList_GET_ITEM(__pyx_t_1, __pyx_t_2); __Pyx_INCREF(__pyx_t_3); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1912; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #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 = 1909; __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 = 1912; __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++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1909; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = PyTuple_GET_ITEM(__pyx_t_1, __pyx_t_2); __Pyx_INCREF(__pyx_t_3); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1912; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #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 = 1909; __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 = 1912; __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 = 1909; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1912; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         }
         break;
       }
@@ -62027,7 +62205,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_25add_instanc
       if (unlikely(size != 2)) {
         if (size > 2) __Pyx_RaiseTooManyValuesError(2);
         else if (size >= 0) __Pyx_RaiseNeedMoreValuesError(size);
-        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1909; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1912; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       }
       #if CYTHON_COMPILING_IN_CPYTHON
       if (likely(PyTuple_CheckExact(sequence))) {
@@ -62040,16 +62218,16 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_25add_instanc
       __Pyx_INCREF(__pyx_t_4);
       __Pyx_INCREF(__pyx_t_6);
       #else
-      __pyx_t_4 = PySequence_ITEM(sequence, 0); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1909; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PySequence_ITEM(sequence, 0); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1912; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_6 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1909; __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 = 1912; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_6);
       #endif
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     } else
     {
       Py_ssize_t index = -1;
-      __pyx_t_7 = PyObject_GetIter(__pyx_t_3); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1909; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_7 = PyObject_GetIter(__pyx_t_3); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1912; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_7);
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       __pyx_t_8 = Py_TYPE(__pyx_t_7)->tp_iternext;
@@ -62057,7 +62235,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_25add_instanc
       __Pyx_GOTREF(__pyx_t_4);
       index = 1; __pyx_t_6 = __pyx_t_8(__pyx_t_7); if (unlikely(!__pyx_t_6)) goto __pyx_L11_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 = 1909; __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 = 1912; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __pyx_t_8 = NULL;
       __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
       goto __pyx_L12_unpacking_done;
@@ -62065,7 +62243,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_25add_instanc
       __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 = 1909; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1912; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __pyx_L12_unpacking_done:;
     }
     __Pyx_XDECREF_SET(__pyx_v_f, __pyx_t_4);
@@ -62073,21 +62251,21 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_25add_instanc
     __Pyx_XDECREF_SET(__pyx_v_e, __pyx_t_6);
     __pyx_t_6 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1910
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1913
  *         ef_span = [[f_len + 1, -1] for i in range(e_len)]
  *         for f, e in alignment:
  *             al[f].append(e)             # <<<<<<<<<<<<<<
  *             fe_span[f][0] = min(fe_span[f][0], e)
  *             fe_span[f][1] = max(fe_span[f][1], e)
  */
-    __pyx_t_3 = PyObject_GetItem(__pyx_cur_scope->__pyx_v_al, __pyx_v_f); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1910; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_GetItem(__pyx_cur_scope->__pyx_v_al, __pyx_v_f); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1913; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_6 = __Pyx_PyObject_Append(__pyx_t_3, __pyx_v_e); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1910; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = __Pyx_PyObject_Append(__pyx_t_3, __pyx_v_e); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1913; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1911
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1914
  *         for f, e in alignment:
  *             al[f].append(e)
  *             fe_span[f][0] = min(fe_span[f][0], e)             # <<<<<<<<<<<<<<
@@ -62096,13 +62274,13 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_25add_instanc
  */
     __Pyx_INCREF(__pyx_v_e);
     __pyx_t_6 = __pyx_v_e;
-    __pyx_t_3 = PyObject_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_fe_span), __pyx_v_f); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1911; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_fe_span), __pyx_v_f); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1914; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_3, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1911; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_3, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1914; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __pyx_t_7 = PyObject_RichCompare(__pyx_t_6, __pyx_t_4, Py_LT); __Pyx_XGOTREF(__pyx_t_7); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1911; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __pyx_t_9 = __Pyx_PyObject_IsTrue(__pyx_t_7); if (unlikely(__pyx_t_9 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1911; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_7 = PyObject_RichCompare(__pyx_t_6, __pyx_t_4, Py_LT); __Pyx_XGOTREF(__pyx_t_7); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1914; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_9 = __Pyx_PyObject_IsTrue(__pyx_t_7); if (unlikely(__pyx_t_9 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1914; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
     if (__pyx_t_9) {
       __Pyx_INCREF(__pyx_t_6);
@@ -62116,13 +62294,13 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_25add_instanc
     __pyx_t_6 = __pyx_t_3;
     __Pyx_INCREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __pyx_t_3 = PyObject_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_fe_span), __pyx_v_f); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1911; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_fe_span), __pyx_v_f); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1914; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
-    if (__Pyx_SetItemInt(__pyx_t_3, 0, __pyx_t_6, sizeof(long), PyInt_FromLong, 0, 0, 1) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1911; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (__Pyx_SetItemInt(__pyx_t_3, 0, __pyx_t_6, sizeof(long), PyInt_FromLong, 0, 0, 1) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1914; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1912
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1915
  *             al[f].append(e)
  *             fe_span[f][0] = min(fe_span[f][0], e)
  *             fe_span[f][1] = max(fe_span[f][1], e)             # <<<<<<<<<<<<<<
@@ -62131,13 +62309,13 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_25add_instanc
  */
     __Pyx_INCREF(__pyx_v_e);
     __pyx_t_6 = __pyx_v_e;
-    __pyx_t_3 = PyObject_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_fe_span), __pyx_v_f); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1912; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_fe_span), __pyx_v_f); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1915; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_3, 1, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1912; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_3, 1, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1915; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __pyx_t_7 = PyObject_RichCompare(__pyx_t_6, __pyx_t_4, Py_GT); __Pyx_XGOTREF(__pyx_t_7); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1912; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __pyx_t_9 = __Pyx_PyObject_IsTrue(__pyx_t_7); if (unlikely(__pyx_t_9 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1912; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_7 = PyObject_RichCompare(__pyx_t_6, __pyx_t_4, Py_GT); __Pyx_XGOTREF(__pyx_t_7); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1915; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_9 = __Pyx_PyObject_IsTrue(__pyx_t_7); if (unlikely(__pyx_t_9 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1915; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
     if (__pyx_t_9) {
       __Pyx_INCREF(__pyx_t_6);
@@ -62151,13 +62329,13 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_25add_instanc
     __pyx_t_6 = __pyx_t_3;
     __Pyx_INCREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __pyx_t_3 = PyObject_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_fe_span), __pyx_v_f); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1912; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_fe_span), __pyx_v_f); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1915; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
-    if (__Pyx_SetItemInt(__pyx_t_3, 1, __pyx_t_6, sizeof(long), PyInt_FromLong, 0, 0, 1) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1912; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (__Pyx_SetItemInt(__pyx_t_3, 1, __pyx_t_6, sizeof(long), PyInt_FromLong, 0, 0, 1) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1915; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1913
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1916
  *             fe_span[f][0] = min(fe_span[f][0], e)
  *             fe_span[f][1] = max(fe_span[f][1], e)
  *             ef_span[e][0] = min(ef_span[e][0], f)             # <<<<<<<<<<<<<<
@@ -62166,13 +62344,13 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_25add_instanc
  */
     __Pyx_INCREF(__pyx_v_f);
     __pyx_t_6 = __pyx_v_f;
-    __pyx_t_3 = PyObject_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_ef_span), __pyx_v_e); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1913; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_ef_span), __pyx_v_e); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1916; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_3, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1913; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_3, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1916; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __pyx_t_7 = PyObject_RichCompare(__pyx_t_6, __pyx_t_4, Py_LT); __Pyx_XGOTREF(__pyx_t_7); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1913; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __pyx_t_9 = __Pyx_PyObject_IsTrue(__pyx_t_7); if (unlikely(__pyx_t_9 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1913; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_7 = PyObject_RichCompare(__pyx_t_6, __pyx_t_4, Py_LT); __Pyx_XGOTREF(__pyx_t_7); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1916; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_9 = __Pyx_PyObject_IsTrue(__pyx_t_7); if (unlikely(__pyx_t_9 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1916; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
     if (__pyx_t_9) {
       __Pyx_INCREF(__pyx_t_6);
@@ -62186,13 +62364,13 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_25add_instanc
     __pyx_t_6 = __pyx_t_3;
     __Pyx_INCREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __pyx_t_3 = PyObject_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_ef_span), __pyx_v_e); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1913; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_ef_span), __pyx_v_e); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1916; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
-    if (__Pyx_SetItemInt(__pyx_t_3, 0, __pyx_t_6, sizeof(long), PyInt_FromLong, 0, 0, 1) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1913; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (__Pyx_SetItemInt(__pyx_t_3, 0, __pyx_t_6, sizeof(long), PyInt_FromLong, 0, 0, 1) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1916; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1914
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1917
  *             fe_span[f][1] = max(fe_span[f][1], e)
  *             ef_span[e][0] = min(ef_span[e][0], f)
  *             ef_span[e][1] = max(ef_span[e][1], f)             # <<<<<<<<<<<<<<
@@ -62201,13 +62379,13 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_25add_instanc
  */
     __Pyx_INCREF(__pyx_v_f);
     __pyx_t_6 = __pyx_v_f;
-    __pyx_t_3 = PyObject_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_ef_span), __pyx_v_e); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1914; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_ef_span), __pyx_v_e); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1917; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_3, 1, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1914; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_3, 1, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1917; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __pyx_t_7 = PyObject_RichCompare(__pyx_t_6, __pyx_t_4, Py_GT); __Pyx_XGOTREF(__pyx_t_7); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1914; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __pyx_t_9 = __Pyx_PyObject_IsTrue(__pyx_t_7); if (unlikely(__pyx_t_9 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1914; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_7 = PyObject_RichCompare(__pyx_t_6, __pyx_t_4, Py_GT); __Pyx_XGOTREF(__pyx_t_7); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1917; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_9 = __Pyx_PyObject_IsTrue(__pyx_t_7); if (unlikely(__pyx_t_9 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1917; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
     if (__pyx_t_9) {
       __Pyx_INCREF(__pyx_t_6);
@@ -62221,27 +62399,27 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_25add_instanc
     __pyx_t_6 = __pyx_t_3;
     __Pyx_INCREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __pyx_t_3 = PyObject_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_ef_span), __pyx_v_e); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1914; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_ef_span), __pyx_v_e); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1917; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
-    if (__Pyx_SetItemInt(__pyx_t_3, 1, __pyx_t_6, sizeof(long), PyInt_FromLong, 0, 0, 1) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1914; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (__Pyx_SetItemInt(__pyx_t_3, 1, __pyx_t_6, sizeof(long), PyInt_FromLong, 0, 0, 1) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1917; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
   }
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1917
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1920
  * 
  *         # Target side word coverage
  *         cover = [0] * e_len             # <<<<<<<<<<<<<<
  *         # Non-terminal coverage
  *         f_nt_cover = [0] * f_len
  */
-  __pyx_t_1 = PyList_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1917; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyList_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1920; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_INCREF(__pyx_int_0);
   PyList_SET_ITEM(__pyx_t_1, 0, __pyx_int_0);
   __Pyx_GIVEREF(__pyx_int_0);
-  { PyObject* __pyx_temp = PyNumber_InPlaceMultiply(__pyx_t_1, __pyx_v_e_len); if (unlikely(!__pyx_temp)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1917; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  { PyObject* __pyx_temp = PyNumber_InPlaceMultiply(__pyx_t_1, __pyx_v_e_len); if (unlikely(!__pyx_temp)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1920; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_temp);
     __Pyx_DECREF(__pyx_t_1);
     __pyx_t_1 = __pyx_temp;
@@ -62250,19 +62428,19 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_25add_instanc
   __pyx_cur_scope->__pyx_v_cover = ((PyObject*)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1919
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1922
  *         cover = [0] * e_len
  *         # Non-terminal coverage
  *         f_nt_cover = [0] * f_len             # <<<<<<<<<<<<<<
  *         e_nt_cover = [0] * e_len
  * 
  */
-  __pyx_t_1 = PyList_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1919; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyList_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1922; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_INCREF(__pyx_int_0);
   PyList_SET_ITEM(__pyx_t_1, 0, __pyx_int_0);
   __Pyx_GIVEREF(__pyx_int_0);
-  { PyObject* __pyx_temp = PyNumber_InPlaceMultiply(__pyx_t_1, __pyx_cur_scope->__pyx_v_f_len); if (unlikely(!__pyx_temp)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1919; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  { PyObject* __pyx_temp = PyNumber_InPlaceMultiply(__pyx_t_1, __pyx_cur_scope->__pyx_v_f_len); if (unlikely(!__pyx_temp)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1922; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_temp);
     __Pyx_DECREF(__pyx_t_1);
     __pyx_t_1 = __pyx_temp;
@@ -62270,19 +62448,19 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_25add_instanc
   __pyx_v_f_nt_cover = ((PyObject*)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1920
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1923
  *         # Non-terminal coverage
  *         f_nt_cover = [0] * f_len
  *         e_nt_cover = [0] * e_len             # <<<<<<<<<<<<<<
  * 
  *         # Extract all possible hierarchical phrases starting at a source index
  */
-  __pyx_t_1 = PyList_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1920; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyList_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1923; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_INCREF(__pyx_int_0);
   PyList_SET_ITEM(__pyx_t_1, 0, __pyx_int_0);
   __Pyx_GIVEREF(__pyx_int_0);
-  { PyObject* __pyx_temp = PyNumber_InPlaceMultiply(__pyx_t_1, __pyx_v_e_len); if (unlikely(!__pyx_temp)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1920; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  { PyObject* __pyx_temp = PyNumber_InPlaceMultiply(__pyx_t_1, __pyx_v_e_len); if (unlikely(!__pyx_temp)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1923; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_temp);
     __Pyx_DECREF(__pyx_t_1);
     __pyx_t_1 = __pyx_temp;
@@ -62291,44 +62469,48 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_25add_instanc
   __pyx_cur_scope->__pyx_v_e_nt_cover = ((PyObject*)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1925
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1928
  *         # f_ i and j are current, e_ i and j are previous
  *         # We care _considering_ f_j, so it is not yet in counts
  *         def extract(f_i, f_j, e_i, e_j, min_bound, wc, links, nt, nt_open):             # <<<<<<<<<<<<<<
  *             # Phrase extraction limits
  *             if f_j > (f_len - 1) or (f_j - f_i) + 1 > self.max_initial_size:
  */
-  __pyx_t_1 = __Pyx_CyFunction_NewEx(&__pyx_mdef_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instance_1extract, 0, __pyx_n_s_145, ((PyObject*)__pyx_cur_scope), __pyx_n_s_102, ((PyObject *)__pyx_k_codeobj_143)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1925; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_CyFunction_NewEx(&__pyx_mdef_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instance_1extract, 0, __pyx_n_s_145, ((PyObject*)__pyx_cur_scope), __pyx_n_s_102, ((PyObject *)__pyx_k_codeobj_143)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1928; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_GIVEREF(__pyx_t_1);
   __pyx_cur_scope->__pyx_v_extract = __pyx_t_1;
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2031
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2034
  * 
  *         # Try to extract phrases from every f index
  *         for f_i from 0 <= f_i < f_len:             # <<<<<<<<<<<<<<
  *             # Skip if phrases won't be tight on left side
  *             if not al[f_i]:
  */
-  __pyx_t_10 = __Pyx_PyInt_AsLong(__pyx_cur_scope->__pyx_v_f_len); if (unlikely((__pyx_t_10 == (long)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2031; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  for (__pyx_v_f_i = 0; __pyx_v_f_i < __pyx_t_10; __pyx_v_f_i++) {
+  __pyx_t_10 = __Pyx_PyInt_AsLong(__pyx_cur_scope->__pyx_v_f_len); if (unlikely((__pyx_t_10 == (long)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2034; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  for (__pyx_t_11 = 0; __pyx_t_11 < __pyx_t_10; __pyx_t_11++) {
+    __pyx_t_1 = PyInt_FromLong(__pyx_t_11); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2034; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_1);
+    __Pyx_XDECREF_SET(__pyx_v_f_i, __pyx_t_1);
+    __pyx_t_1 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2033
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2036
  *         for f_i from 0 <= f_i < f_len:
  *             # Skip if phrases won't be tight on left side
  *             if not al[f_i]:             # <<<<<<<<<<<<<<
  *                 continue
  *             extract(f_i, f_i, f_len + 1, -1, f_i, 0, [], [], False)
  */
-    __pyx_t_1 = __Pyx_GetItemInt(__pyx_cur_scope->__pyx_v_al, __pyx_v_f_i, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2033; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyObject_GetItem(__pyx_cur_scope->__pyx_v_al, __pyx_v_f_i); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2036; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_9 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_9 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2033; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_9 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_9 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2036; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-    __pyx_t_11 = ((!__pyx_t_9) != 0);
-    if (__pyx_t_11) {
+    __pyx_t_12 = ((!__pyx_t_9) != 0);
+    if (__pyx_t_12) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2034
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2037
  *             # Skip if phrases won't be tight on left side
  *             if not al[f_i]:
  *                 continue             # <<<<<<<<<<<<<<
@@ -62340,107 +62522,111 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_25add_instanc
     }
     __pyx_L15:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2035
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2038
  *             if not al[f_i]:
  *                 continue
  *             extract(f_i, f_i, f_len + 1, -1, f_i, 0, [], [], False)             # <<<<<<<<<<<<<<
  * 
  *         stats = self.online_stats[ctx_name]
  */
-    __pyx_t_1 = PyInt_FromLong(__pyx_v_f_i); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2035; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyNumber_Add(__pyx_cur_scope->__pyx_v_f_len, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2038; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_6 = PyInt_FromLong(__pyx_v_f_i); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2035; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = PyList_New(0); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2038; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
-    __pyx_t_3 = PyNumber_Add(__pyx_cur_scope->__pyx_v_f_len, __pyx_int_1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2035; __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 = 2038; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_4 = PyInt_FromLong(__pyx_v_f_i); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2035; __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 = 2038; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_7 = PyList_New(0); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2035; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_7 = __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instance_extract(__pyx_cur_scope->__pyx_v_extract, __pyx_v_f_i, __pyx_v_f_i, __pyx_t_1, __pyx_int_neg_1, __pyx_v_f_i, __pyx_int_0, ((PyObject *)__pyx_t_6), ((PyObject *)__pyx_t_3), __pyx_t_4); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2038; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_7);
-    __pyx_t_12 = PyList_New(0); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2035; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_12);
-    __pyx_t_13 = __Pyx_PyBool_FromLong(0); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2035; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_13);
-    __pyx_t_14 = __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_12add_instance_extract(__pyx_cur_scope->__pyx_v_extract, __pyx_t_1, __pyx_t_6, __pyx_t_3, __pyx_int_neg_1, __pyx_t_4, __pyx_int_0, ((PyObject *)__pyx_t_7), ((PyObject *)__pyx_t_12), __pyx_t_13); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2035; __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_6); __pyx_t_6 = 0;
-    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+    __Pyx_DECREF(((PyObject *)__pyx_t_6)); __pyx_t_6 = 0;
+    __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    __Pyx_DECREF(((PyObject *)__pyx_t_7)); __pyx_t_7 = 0;
-    __Pyx_DECREF(((PyObject *)__pyx_t_12)); __pyx_t_12 = 0;
-    __Pyx_DECREF(__pyx_t_13); __pyx_t_13 = 0;
-    __Pyx_DECREF(__pyx_t_14); __pyx_t_14 = 0;
+    __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
     __pyx_L13_continue:;
+    __pyx_t_11 = __Pyx_PyInt_AsLong(__pyx_v_f_i); if (unlikely((__pyx_t_11 == (long)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2034; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   }
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2037
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2034
+ * 
+ *         # Try to extract phrases from every f index
+ *         for f_i from 0 <= f_i < f_len:             # <<<<<<<<<<<<<<
+ *             # Skip if phrases won't be tight on left side
+ *             if not al[f_i]:
+ */
+  __pyx_t_7 = PyInt_FromLong(__pyx_t_11); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2034; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_7);
+  __Pyx_XDECREF_SET(__pyx_v_f_i, __pyx_t_7);
+  __pyx_t_7 = 0;
+
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2040
  *             extract(f_i, f_i, f_len + 1, -1, f_i, 0, [], [], False)
  * 
  *         stats = self.online_stats[ctx_name]             # <<<<<<<<<<<<<<
  * 
  *         # Update possible phrases (samples)
  */
-  __pyx_t_14 = PyObject_GetItem(__pyx_cur_scope->__pyx_v_self->online_stats, __pyx_v_ctx_name); if (!__pyx_t_14) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2037; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_14);
-  __pyx_v_stats = __pyx_t_14;
-  __pyx_t_14 = 0;
+  __pyx_t_7 = PyObject_GetItem(__pyx_cur_scope->__pyx_v_self->online_stats, __pyx_v_ctx_name); if (!__pyx_t_7) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2040; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_7);
+  __pyx_v_stats = __pyx_t_7;
+  __pyx_t_7 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2042
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2045
  *         # This could be more efficiently integrated with extraction
  *         # at the cost of readability
  *         for f, lex_i, lex_j in self.get_f_phrases(f_words):             # <<<<<<<<<<<<<<
  *             stats.samples_f[f] += 1
  * 
  */
-  __pyx_t_14 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_cur_scope->__pyx_v_self), __pyx_n_s__get_f_phrases); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2042; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_14);
-  __pyx_t_13 = PyTuple_New(1); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2042; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_13);
+  __pyx_t_7 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_cur_scope->__pyx_v_self), __pyx_n_s__get_f_phrases); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2045; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_7);
+  __pyx_t_4 = PyTuple_New(1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2045; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
   __Pyx_INCREF(__pyx_cur_scope->__pyx_v_f_words);
-  PyTuple_SET_ITEM(__pyx_t_13, 0, __pyx_cur_scope->__pyx_v_f_words);
+  PyTuple_SET_ITEM(__pyx_t_4, 0, __pyx_cur_scope->__pyx_v_f_words);
   __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_f_words);
-  __pyx_t_12 = PyObject_Call(__pyx_t_14, ((PyObject *)__pyx_t_13), NULL); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2042; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_12);
-  __Pyx_DECREF(__pyx_t_14); __pyx_t_14 = 0;
-  __Pyx_DECREF(((PyObject *)__pyx_t_13)); __pyx_t_13 = 0;
-  if (PyList_CheckExact(__pyx_t_12) || PyTuple_CheckExact(__pyx_t_12)) {
-    __pyx_t_13 = __pyx_t_12; __Pyx_INCREF(__pyx_t_13); __pyx_t_2 = 0;
+  __pyx_t_3 = PyObject_Call(__pyx_t_7, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2045; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
+  __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
+  if (PyList_CheckExact(__pyx_t_3) || PyTuple_CheckExact(__pyx_t_3)) {
+    __pyx_t_4 = __pyx_t_3; __Pyx_INCREF(__pyx_t_4); __pyx_t_2 = 0;
     __pyx_t_5 = NULL;
   } else {
-    __pyx_t_2 = -1; __pyx_t_13 = PyObject_GetIter(__pyx_t_12); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2042; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_13);
-    __pyx_t_5 = Py_TYPE(__pyx_t_13)->tp_iternext;
+    __pyx_t_2 = -1; __pyx_t_4 = PyObject_GetIter(__pyx_t_3); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2045; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_4);
+    __pyx_t_5 = Py_TYPE(__pyx_t_4)->tp_iternext;
   }
-  __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   for (;;) {
-    if (!__pyx_t_5 && PyList_CheckExact(__pyx_t_13)) {
-      if (__pyx_t_2 >= PyList_GET_SIZE(__pyx_t_13)) break;
+    if (!__pyx_t_5 && PyList_CheckExact(__pyx_t_4)) {
+      if (__pyx_t_2 >= PyList_GET_SIZE(__pyx_t_4)) break;
       #if CYTHON_COMPILING_IN_CPYTHON
-      __pyx_t_12 = PyList_GET_ITEM(__pyx_t_13, __pyx_t_2); __Pyx_INCREF(__pyx_t_12); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2042; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = PyList_GET_ITEM(__pyx_t_4, __pyx_t_2); __Pyx_INCREF(__pyx_t_3); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2045; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #else
-      __pyx_t_12 = PySequence_ITEM(__pyx_t_13, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2042; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = PySequence_ITEM(__pyx_t_4, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2045; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #endif
-    } else if (!__pyx_t_5 && PyTuple_CheckExact(__pyx_t_13)) {
-      if (__pyx_t_2 >= PyTuple_GET_SIZE(__pyx_t_13)) break;
+    } else if (!__pyx_t_5 && PyTuple_CheckExact(__pyx_t_4)) {
+      if (__pyx_t_2 >= PyTuple_GET_SIZE(__pyx_t_4)) break;
       #if CYTHON_COMPILING_IN_CPYTHON
-      __pyx_t_12 = PyTuple_GET_ITEM(__pyx_t_13, __pyx_t_2); __Pyx_INCREF(__pyx_t_12); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2042; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = PyTuple_GET_ITEM(__pyx_t_4, __pyx_t_2); __Pyx_INCREF(__pyx_t_3); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2045; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #else
-      __pyx_t_12 = PySequence_ITEM(__pyx_t_13, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2042; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = PySequence_ITEM(__pyx_t_4, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2045; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #endif
     } else {
-      __pyx_t_12 = __pyx_t_5(__pyx_t_13);
-      if (unlikely(!__pyx_t_12)) {
+      __pyx_t_3 = __pyx_t_5(__pyx_t_4);
+      if (unlikely(!__pyx_t_3)) {
         if (PyErr_Occurred()) {
           if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-          else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2042; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2045; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         }
         break;
       }
-      __Pyx_GOTREF(__pyx_t_12);
+      __Pyx_GOTREF(__pyx_t_3);
     }
-    if ((likely(PyTuple_CheckExact(__pyx_t_12))) || (PyList_CheckExact(__pyx_t_12))) {
-      PyObject* sequence = __pyx_t_12;
+    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
@@ -62449,120 +62635,120 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_25add_instanc
       if (unlikely(size != 3)) {
         if (size > 3) __Pyx_RaiseTooManyValuesError(3);
         else if (size >= 0) __Pyx_RaiseNeedMoreValuesError(size);
-        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2042; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2045; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       }
       #if CYTHON_COMPILING_IN_CPYTHON
       if (likely(PyTuple_CheckExact(sequence))) {
-        __pyx_t_14 = PyTuple_GET_ITEM(sequence, 0); 
-        __pyx_t_7 = PyTuple_GET_ITEM(sequence, 1); 
-        __pyx_t_4 = PyTuple_GET_ITEM(sequence, 2); 
+        __pyx_t_7 = PyTuple_GET_ITEM(sequence, 0); 
+        __pyx_t_6 = PyTuple_GET_ITEM(sequence, 1); 
+        __pyx_t_1 = PyTuple_GET_ITEM(sequence, 2); 
       } else {
-        __pyx_t_14 = PyList_GET_ITEM(sequence, 0); 
-        __pyx_t_7 = PyList_GET_ITEM(sequence, 1); 
-        __pyx_t_4 = PyList_GET_ITEM(sequence, 2); 
+        __pyx_t_7 = PyList_GET_ITEM(sequence, 0); 
+        __pyx_t_6 = PyList_GET_ITEM(sequence, 1); 
+        __pyx_t_1 = PyList_GET_ITEM(sequence, 2); 
       }
-      __Pyx_INCREF(__pyx_t_14);
       __Pyx_INCREF(__pyx_t_7);
-      __Pyx_INCREF(__pyx_t_4);
+      __Pyx_INCREF(__pyx_t_6);
+      __Pyx_INCREF(__pyx_t_1);
       #else
-      __pyx_t_14 = PySequence_ITEM(sequence, 0); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2042; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_14);
-      __pyx_t_7 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2042; __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 = 2045; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_7);
-      __pyx_t_4 = PySequence_ITEM(sequence, 2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2042; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_4);
+      __pyx_t_6 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2045; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_6);
+      __pyx_t_1 = PySequence_ITEM(sequence, 2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2045; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_1);
       #endif
-      __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
+      __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     } else
     {
       Py_ssize_t index = -1;
-      __pyx_t_3 = PyObject_GetIter(__pyx_t_12); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2042; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_3);
-      __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
-      __pyx_t_8 = Py_TYPE(__pyx_t_3)->tp_iternext;
-      index = 0; __pyx_t_14 = __pyx_t_8(__pyx_t_3); if (unlikely(!__pyx_t_14)) goto __pyx_L18_unpacking_failed;
-      __Pyx_GOTREF(__pyx_t_14);
-      index = 1; __pyx_t_7 = __pyx_t_8(__pyx_t_3); if (unlikely(!__pyx_t_7)) goto __pyx_L18_unpacking_failed;
+      __pyx_t_13 = PyObject_GetIter(__pyx_t_3); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2045; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_13);
+      __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+      __pyx_t_8 = Py_TYPE(__pyx_t_13)->tp_iternext;
+      index = 0; __pyx_t_7 = __pyx_t_8(__pyx_t_13); if (unlikely(!__pyx_t_7)) goto __pyx_L18_unpacking_failed;
       __Pyx_GOTREF(__pyx_t_7);
-      index = 2; __pyx_t_4 = __pyx_t_8(__pyx_t_3); if (unlikely(!__pyx_t_4)) goto __pyx_L18_unpacking_failed;
-      __Pyx_GOTREF(__pyx_t_4);
-      if (__Pyx_IternextUnpackEndCheck(__pyx_t_8(__pyx_t_3), 3) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2042; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      index = 1; __pyx_t_6 = __pyx_t_8(__pyx_t_13); if (unlikely(!__pyx_t_6)) goto __pyx_L18_unpacking_failed;
+      __Pyx_GOTREF(__pyx_t_6);
+      index = 2; __pyx_t_1 = __pyx_t_8(__pyx_t_13); if (unlikely(!__pyx_t_1)) goto __pyx_L18_unpacking_failed;
+      __Pyx_GOTREF(__pyx_t_1);
+      if (__Pyx_IternextUnpackEndCheck(__pyx_t_8(__pyx_t_13), 3) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2045; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __pyx_t_8 = NULL;
-      __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+      __Pyx_DECREF(__pyx_t_13); __pyx_t_13 = 0;
       goto __pyx_L19_unpacking_done;
       __pyx_L18_unpacking_failed:;
-      __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+      __Pyx_DECREF(__pyx_t_13); __pyx_t_13 = 0;
       __pyx_t_8 = NULL;
       if (__Pyx_IterFinish() == 0) __Pyx_RaiseNeedMoreValuesError(index);
-      {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2042; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2045; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __pyx_L19_unpacking_done:;
     }
-    __Pyx_XDECREF_SET(__pyx_v_f, __pyx_t_14);
-    __pyx_t_14 = 0;
-    __Pyx_XDECREF_SET(__pyx_v_lex_i, __pyx_t_7);
+    __Pyx_XDECREF_SET(__pyx_v_f, __pyx_t_7);
     __pyx_t_7 = 0;
-    __Pyx_XDECREF_SET(__pyx_v_lex_j, __pyx_t_4);
-    __pyx_t_4 = 0;
+    __Pyx_XDECREF_SET(__pyx_v_lex_i, __pyx_t_6);
+    __pyx_t_6 = 0;
+    __Pyx_XDECREF_SET(__pyx_v_lex_j, __pyx_t_1);
+    __pyx_t_1 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2043
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2046
  *         # at the cost of readability
  *         for f, lex_i, lex_j in self.get_f_phrases(f_words):
  *             stats.samples_f[f] += 1             # <<<<<<<<<<<<<<
  * 
  *         # Update phrase counts
  */
-    __pyx_t_12 = __Pyx_PyObject_GetAttrStr(__pyx_v_stats, __pyx_n_s__samples_f); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2043; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_12);
+    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_stats, __pyx_n_s__samples_f); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2046; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_3);
     __Pyx_INCREF(__pyx_v_f);
-    __pyx_t_4 = __pyx_v_f;
-    __pyx_t_7 = PyObject_GetItem(__pyx_t_12, __pyx_t_4); if (!__pyx_t_7) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2043; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = __pyx_v_f;
+    __pyx_t_6 = PyObject_GetItem(__pyx_t_3, __pyx_t_1); if (!__pyx_t_6) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2046; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_6);
+    __pyx_t_7 = PyNumber_InPlaceAdd(__pyx_t_6, __pyx_int_1); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2046; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_7);
-    __pyx_t_14 = PyNumber_InPlaceAdd(__pyx_t_7, __pyx_int_1); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2043; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_14);
+    __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
+    if (PyObject_SetItem(__pyx_t_3, __pyx_t_1, __pyx_t_7) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2046; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-    if (PyObject_SetItem(__pyx_t_12, __pyx_t_4, __pyx_t_14) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2043; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_DECREF(__pyx_t_14); __pyx_t_14 = 0;
-    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
+    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   }
-  __Pyx_DECREF(__pyx_t_13); __pyx_t_13 = 0;
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2046
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2049
  * 
  *         # Update phrase counts
  *         for rule in rules:             # <<<<<<<<<<<<<<
  *             (f_ph, e_ph, al) = rule[:3]
  *             stats.phrases_f[f_ph] += 1
  */
-  __pyx_t_13 = PyObject_GetIter(((PyObject *)__pyx_cur_scope->__pyx_v_rules)); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2046; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_13);
-  __pyx_t_5 = Py_TYPE(__pyx_t_13)->tp_iternext;
+  __pyx_t_4 = PyObject_GetIter(((PyObject *)__pyx_cur_scope->__pyx_v_rules)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2049; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __pyx_t_5 = Py_TYPE(__pyx_t_4)->tp_iternext;
   for (;;) {
     {
-      __pyx_t_12 = __pyx_t_5(__pyx_t_13);
-      if (unlikely(!__pyx_t_12)) {
+      __pyx_t_3 = __pyx_t_5(__pyx_t_4);
+      if (unlikely(!__pyx_t_3)) {
         if (PyErr_Occurred()) {
           if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-          else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2046; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2049; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         }
         break;
       }
-      __Pyx_GOTREF(__pyx_t_12);
+      __Pyx_GOTREF(__pyx_t_3);
     }
-    __Pyx_XDECREF_SET(__pyx_v_rule, __pyx_t_12);
-    __pyx_t_12 = 0;
+    __Pyx_XDECREF_SET(__pyx_v_rule, __pyx_t_3);
+    __pyx_t_3 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2047
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2050
  *         # Update phrase counts
  *         for rule in rules:
  *             (f_ph, e_ph, al) = rule[:3]             # <<<<<<<<<<<<<<
  *             stats.phrases_f[f_ph] += 1
  *             stats.phrases_e[e_ph] += 1
  */
-    __pyx_t_12 = __Pyx_PyObject_GetSlice(__pyx_v_rule, 0, 3, NULL, NULL, &__pyx_k_slice_146, 0, 1, 1); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2047; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_12);
-    if ((likely(PyTuple_CheckExact(__pyx_t_12))) || (PyList_CheckExact(__pyx_t_12))) {
-      PyObject* sequence = __pyx_t_12;
+    __pyx_t_3 = __Pyx_PyObject_GetSlice(__pyx_v_rule, 0, 3, NULL, NULL, &__pyx_k_slice_146, 0, 1, 1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2050; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_3);
+    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
@@ -62571,372 +62757,835 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_25add_instanc
       if (unlikely(size != 3)) {
         if (size > 3) __Pyx_RaiseTooManyValuesError(3);
         else if (size >= 0) __Pyx_RaiseNeedMoreValuesError(size);
-        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2047; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2050; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       }
       #if CYTHON_COMPILING_IN_CPYTHON
       if (likely(PyTuple_CheckExact(sequence))) {
-        __pyx_t_4 = PyTuple_GET_ITEM(sequence, 0); 
-        __pyx_t_14 = PyTuple_GET_ITEM(sequence, 1); 
-        __pyx_t_7 = PyTuple_GET_ITEM(sequence, 2); 
+        __pyx_t_1 = PyTuple_GET_ITEM(sequence, 0); 
+        __pyx_t_7 = PyTuple_GET_ITEM(sequence, 1); 
+        __pyx_t_6 = PyTuple_GET_ITEM(sequence, 2); 
       } else {
-        __pyx_t_4 = PyList_GET_ITEM(sequence, 0); 
-        __pyx_t_14 = PyList_GET_ITEM(sequence, 1); 
-        __pyx_t_7 = PyList_GET_ITEM(sequence, 2); 
+        __pyx_t_1 = PyList_GET_ITEM(sequence, 0); 
+        __pyx_t_7 = PyList_GET_ITEM(sequence, 1); 
+        __pyx_t_6 = PyList_GET_ITEM(sequence, 2); 
       }
-      __Pyx_INCREF(__pyx_t_4);
-      __Pyx_INCREF(__pyx_t_14);
+      __Pyx_INCREF(__pyx_t_1);
       __Pyx_INCREF(__pyx_t_7);
+      __Pyx_INCREF(__pyx_t_6);
       #else
-      __pyx_t_4 = PySequence_ITEM(sequence, 0); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2047; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_14 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2047; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_14);
-      __pyx_t_7 = PySequence_ITEM(sequence, 2); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2047; __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 = 2050; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_1);
+      __pyx_t_7 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2050; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_7);
+      __pyx_t_6 = PySequence_ITEM(sequence, 2); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2050; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_6);
       #endif
-      __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
+      __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     } else
     {
       Py_ssize_t index = -1;
-      __pyx_t_3 = PyObject_GetIter(__pyx_t_12); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2047; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_3);
-      __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
-      __pyx_t_8 = Py_TYPE(__pyx_t_3)->tp_iternext;
-      index = 0; __pyx_t_4 = __pyx_t_8(__pyx_t_3); if (unlikely(!__pyx_t_4)) goto __pyx_L22_unpacking_failed;
-      __Pyx_GOTREF(__pyx_t_4);
-      index = 1; __pyx_t_14 = __pyx_t_8(__pyx_t_3); if (unlikely(!__pyx_t_14)) goto __pyx_L22_unpacking_failed;
-      __Pyx_GOTREF(__pyx_t_14);
-      index = 2; __pyx_t_7 = __pyx_t_8(__pyx_t_3); if (unlikely(!__pyx_t_7)) goto __pyx_L22_unpacking_failed;
+      __pyx_t_13 = PyObject_GetIter(__pyx_t_3); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2050; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_13);
+      __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+      __pyx_t_8 = Py_TYPE(__pyx_t_13)->tp_iternext;
+      index = 0; __pyx_t_1 = __pyx_t_8(__pyx_t_13); if (unlikely(!__pyx_t_1)) goto __pyx_L22_unpacking_failed;
+      __Pyx_GOTREF(__pyx_t_1);
+      index = 1; __pyx_t_7 = __pyx_t_8(__pyx_t_13); if (unlikely(!__pyx_t_7)) goto __pyx_L22_unpacking_failed;
       __Pyx_GOTREF(__pyx_t_7);
-      if (__Pyx_IternextUnpackEndCheck(__pyx_t_8(__pyx_t_3), 3) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2047; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      index = 2; __pyx_t_6 = __pyx_t_8(__pyx_t_13); if (unlikely(!__pyx_t_6)) goto __pyx_L22_unpacking_failed;
+      __Pyx_GOTREF(__pyx_t_6);
+      if (__Pyx_IternextUnpackEndCheck(__pyx_t_8(__pyx_t_13), 3) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2050; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __pyx_t_8 = NULL;
-      __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+      __Pyx_DECREF(__pyx_t_13); __pyx_t_13 = 0;
       goto __pyx_L23_unpacking_done;
       __pyx_L22_unpacking_failed:;
-      __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+      __Pyx_DECREF(__pyx_t_13); __pyx_t_13 = 0;
       __pyx_t_8 = NULL;
       if (__Pyx_IterFinish() == 0) __Pyx_RaiseNeedMoreValuesError(index);
-      {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2047; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2050; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __pyx_L23_unpacking_done:;
     }
-    __Pyx_XDECREF_SET(__pyx_v_f_ph, __pyx_t_4);
-    __pyx_t_4 = 0;
-    __Pyx_XDECREF_SET(__pyx_v_e_ph, __pyx_t_14);
-    __pyx_t_14 = 0;
-    __Pyx_GOTREF(__pyx_cur_scope->__pyx_v_al);
-    __Pyx_DECREF_SET(__pyx_cur_scope->__pyx_v_al, __pyx_t_7);
-    __Pyx_GIVEREF(__pyx_t_7);
+    __Pyx_XDECREF_SET(__pyx_v_f_ph, __pyx_t_1);
+    __pyx_t_1 = 0;
+    __Pyx_XDECREF_SET(__pyx_v_e_ph, __pyx_t_7);
     __pyx_t_7 = 0;
+    __Pyx_GOTREF(__pyx_cur_scope->__pyx_v_al);
+    __Pyx_DECREF_SET(__pyx_cur_scope->__pyx_v_al, __pyx_t_6);
+    __Pyx_GIVEREF(__pyx_t_6);
+    __pyx_t_6 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2048
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2051
  *         for rule in rules:
  *             (f_ph, e_ph, al) = rule[:3]
  *             stats.phrases_f[f_ph] += 1             # <<<<<<<<<<<<<<
  *             stats.phrases_e[e_ph] += 1
  *             stats.phrases_fe[f_ph][e_ph] += 1
  */
-    __pyx_t_12 = __Pyx_PyObject_GetAttrStr(__pyx_v_stats, __pyx_n_s__phrases_f); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2048; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_12);
+    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_stats, __pyx_n_s__phrases_f); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2051; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_3);
     __Pyx_INCREF(__pyx_v_f_ph);
-    __pyx_t_7 = __pyx_v_f_ph;
-    __pyx_t_14 = PyObject_GetItem(__pyx_t_12, __pyx_t_7); if (!__pyx_t_14) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2048; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_14);
-    __pyx_t_4 = PyNumber_InPlaceAdd(__pyx_t_14, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2048; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_4);
-    __Pyx_DECREF(__pyx_t_14); __pyx_t_14 = 0;
-    if (PyObject_SetItem(__pyx_t_12, __pyx_t_7, __pyx_t_4) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2048; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+    __pyx_t_6 = __pyx_v_f_ph;
+    __pyx_t_7 = PyObject_GetItem(__pyx_t_3, __pyx_t_6); if (!__pyx_t_7) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2051; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_7);
+    __pyx_t_1 = PyNumber_InPlaceAdd(__pyx_t_7, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2051; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-    __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
+    if (PyObject_SetItem(__pyx_t_3, __pyx_t_6, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2051; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+    __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
+    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2049
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2052
  *             (f_ph, e_ph, al) = rule[:3]
  *             stats.phrases_f[f_ph] += 1
  *             stats.phrases_e[e_ph] += 1             # <<<<<<<<<<<<<<
  *             stats.phrases_fe[f_ph][e_ph] += 1
  *             if not stats.phrases_al[f_ph][e_ph]:
  */
-    __pyx_t_12 = __Pyx_PyObject_GetAttrStr(__pyx_v_stats, __pyx_n_s__phrases_e); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2049; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_12);
+    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_stats, __pyx_n_s__phrases_e); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2052; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_3);
     __Pyx_INCREF(__pyx_v_e_ph);
-    __pyx_t_7 = __pyx_v_e_ph;
-    __pyx_t_4 = PyObject_GetItem(__pyx_t_12, __pyx_t_7); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2049; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_14 = PyNumber_InPlaceAdd(__pyx_t_4, __pyx_int_1); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2049; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_14);
-    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    if (PyObject_SetItem(__pyx_t_12, __pyx_t_7, __pyx_t_14) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2049; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_DECREF(__pyx_t_14); __pyx_t_14 = 0;
+    __pyx_t_6 = __pyx_v_e_ph;
+    __pyx_t_1 = PyObject_GetItem(__pyx_t_3, __pyx_t_6); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2052; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_1);
+    __pyx_t_7 = PyNumber_InPlaceAdd(__pyx_t_1, __pyx_int_1); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2052; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_7);
+    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+    if (PyObject_SetItem(__pyx_t_3, __pyx_t_6, __pyx_t_7) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2052; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-    __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
+    __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
+    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2050
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2053
  *             stats.phrases_f[f_ph] += 1
  *             stats.phrases_e[e_ph] += 1
  *             stats.phrases_fe[f_ph][e_ph] += 1             # <<<<<<<<<<<<<<
  *             if not stats.phrases_al[f_ph][e_ph]:
  *                 stats.phrases_al[f_ph][e_ph] = al
  */
-    __pyx_t_12 = __Pyx_PyObject_GetAttrStr(__pyx_v_stats, __pyx_n_s__phrases_fe); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2050; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_12);
-    __pyx_t_7 = PyObject_GetItem(__pyx_t_12, __pyx_v_f_ph); if (!__pyx_t_7) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2050; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_7);
-    __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
+    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_stats, __pyx_n_s__phrases_fe); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2053; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_3);
+    __pyx_t_6 = PyObject_GetItem(__pyx_t_3, __pyx_v_f_ph); if (!__pyx_t_6) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2053; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_6);
+    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __Pyx_INCREF(__pyx_v_e_ph);
-    __pyx_t_12 = __pyx_v_e_ph;
-    __pyx_t_14 = PyObject_GetItem(__pyx_t_7, __pyx_t_12); if (!__pyx_t_14) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2050; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_14);
-    __pyx_t_4 = PyNumber_InPlaceAdd(__pyx_t_14, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2050; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_4);
-    __Pyx_DECREF(__pyx_t_14); __pyx_t_14 = 0;
-    if (PyObject_SetItem(__pyx_t_7, __pyx_t_12, __pyx_t_4) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2050; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
+    __pyx_t_3 = __pyx_v_e_ph;
+    __pyx_t_7 = PyObject_GetItem(__pyx_t_6, __pyx_t_3); if (!__pyx_t_7) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2053; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_7);
+    __pyx_t_1 = PyNumber_InPlaceAdd(__pyx_t_7, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2053; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
+    if (PyObject_SetItem(__pyx_t_6, __pyx_t_3, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2053; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+    __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2051
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2054
  *             stats.phrases_e[e_ph] += 1
  *             stats.phrases_fe[f_ph][e_ph] += 1
  *             if not stats.phrases_al[f_ph][e_ph]:             # <<<<<<<<<<<<<<
  *                 stats.phrases_al[f_ph][e_ph] = al
  * 
  */
-    __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_v_stats, __pyx_n_s__phrases_al); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2051; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_7);
-    __pyx_t_12 = PyObject_GetItem(__pyx_t_7, __pyx_v_f_ph); if (!__pyx_t_12) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2051; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_12);
-    __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-    __pyx_t_7 = PyObject_GetItem(__pyx_t_12, __pyx_v_e_ph); if (!__pyx_t_7) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2051; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_7);
-    __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
-    __pyx_t_11 = __Pyx_PyObject_IsTrue(__pyx_t_7); if (unlikely(__pyx_t_11 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2051; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-    __pyx_t_9 = ((!__pyx_t_11) != 0);
+    __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_v_stats, __pyx_n_s__phrases_al); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2054; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_6);
+    __pyx_t_3 = PyObject_GetItem(__pyx_t_6, __pyx_v_f_ph); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2054; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_3);
+    __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
+    __pyx_t_6 = PyObject_GetItem(__pyx_t_3, __pyx_v_e_ph); if (!__pyx_t_6) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2054; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_6);
+    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+    __pyx_t_12 = __Pyx_PyObject_IsTrue(__pyx_t_6); if (unlikely(__pyx_t_12 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2054; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
+    __pyx_t_9 = ((!__pyx_t_12) != 0);
     if (__pyx_t_9) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2052
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2055
  *             stats.phrases_fe[f_ph][e_ph] += 1
  *             if not stats.phrases_al[f_ph][e_ph]:
  *                 stats.phrases_al[f_ph][e_ph] = al             # <<<<<<<<<<<<<<
  * 
  *         # Update Bilexical counts
  */
-      __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_v_stats, __pyx_n_s__phrases_al); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2052; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_7);
-      __pyx_t_12 = PyObject_GetItem(__pyx_t_7, __pyx_v_f_ph); if (!__pyx_t_12) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2052; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_12);
-      __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-      if (PyObject_SetItem(__pyx_t_12, __pyx_v_e_ph, __pyx_cur_scope->__pyx_v_al) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2052; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
+      __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_v_stats, __pyx_n_s__phrases_al); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2055; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_6);
+      __pyx_t_3 = PyObject_GetItem(__pyx_t_6, __pyx_v_f_ph); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2055; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_3);
+      __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
+      if (PyObject_SetItem(__pyx_t_3, __pyx_v_e_ph, __pyx_cur_scope->__pyx_v_al) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2055; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       goto __pyx_L24;
     }
     __pyx_L24:;
   }
-  __Pyx_DECREF(__pyx_t_13); __pyx_t_13 = 0;
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2055
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2058
  * 
  *         # Update Bilexical counts
- *         for e_w in e_words:             # <<<<<<<<<<<<<<
- *             stats.bilex_e[e_w] += 1
- *         for f_w in f_words:
+ *         aligned_fe = [list() for _ in range(len(f_words))]             # <<<<<<<<<<<<<<
+ *         aligned_ef = [list() for _ in range(len(e_words))]
+ *         for (i, j) in alignment:
  */
-  if (PyList_CheckExact(__pyx_cur_scope->__pyx_v_e_words) || PyTuple_CheckExact(__pyx_cur_scope->__pyx_v_e_words)) {
-    __pyx_t_13 = __pyx_cur_scope->__pyx_v_e_words; __Pyx_INCREF(__pyx_t_13); __pyx_t_2 = 0;
+  __pyx_t_4 = PyList_New(0); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2058; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __pyx_t_3 = __pyx_cur_scope->__pyx_v_f_words;
+  __Pyx_INCREF(__pyx_t_3);
+  __pyx_t_2 = PyObject_Length(__pyx_t_3); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2058; __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 = 2058; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __pyx_t_6 = PyTuple_New(1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2058; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_6);
+  PyTuple_SET_ITEM(__pyx_t_6, 0, __pyx_t_3);
+  __Pyx_GIVEREF(__pyx_t_3);
+  __pyx_t_3 = 0;
+  __pyx_t_3 = PyObject_Call(__pyx_builtin_range, ((PyObject *)__pyx_t_6), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2058; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_DECREF(((PyObject *)__pyx_t_6)); __pyx_t_6 = 0;
+  if (PyList_CheckExact(__pyx_t_3) || PyTuple_CheckExact(__pyx_t_3)) {
+    __pyx_t_6 = __pyx_t_3; __Pyx_INCREF(__pyx_t_6); __pyx_t_2 = 0;
     __pyx_t_5 = NULL;
   } else {
-    __pyx_t_2 = -1; __pyx_t_13 = PyObject_GetIter(__pyx_cur_scope->__pyx_v_e_words); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2055; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_13);
-    __pyx_t_5 = Py_TYPE(__pyx_t_13)->tp_iternext;
+    __pyx_t_2 = -1; __pyx_t_6 = PyObject_GetIter(__pyx_t_3); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2058; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_6);
+    __pyx_t_5 = Py_TYPE(__pyx_t_6)->tp_iternext;
   }
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   for (;;) {
-    if (!__pyx_t_5 && PyList_CheckExact(__pyx_t_13)) {
-      if (__pyx_t_2 >= PyList_GET_SIZE(__pyx_t_13)) break;
+    if (!__pyx_t_5 && PyList_CheckExact(__pyx_t_6)) {
+      if (__pyx_t_2 >= PyList_GET_SIZE(__pyx_t_6)) break;
       #if CYTHON_COMPILING_IN_CPYTHON
-      __pyx_t_12 = PyList_GET_ITEM(__pyx_t_13, __pyx_t_2); __Pyx_INCREF(__pyx_t_12); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2055; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = PyList_GET_ITEM(__pyx_t_6, __pyx_t_2); __Pyx_INCREF(__pyx_t_3); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2058; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #else
-      __pyx_t_12 = PySequence_ITEM(__pyx_t_13, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2055; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = PySequence_ITEM(__pyx_t_6, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2058; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #endif
-    } else if (!__pyx_t_5 && PyTuple_CheckExact(__pyx_t_13)) {
-      if (__pyx_t_2 >= PyTuple_GET_SIZE(__pyx_t_13)) break;
+    } else if (!__pyx_t_5 && PyTuple_CheckExact(__pyx_t_6)) {
+      if (__pyx_t_2 >= PyTuple_GET_SIZE(__pyx_t_6)) break;
       #if CYTHON_COMPILING_IN_CPYTHON
-      __pyx_t_12 = PyTuple_GET_ITEM(__pyx_t_13, __pyx_t_2); __Pyx_INCREF(__pyx_t_12); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2055; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = PyTuple_GET_ITEM(__pyx_t_6, __pyx_t_2); __Pyx_INCREF(__pyx_t_3); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2058; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #else
-      __pyx_t_12 = PySequence_ITEM(__pyx_t_13, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2055; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = PySequence_ITEM(__pyx_t_6, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2058; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #endif
     } else {
-      __pyx_t_12 = __pyx_t_5(__pyx_t_13);
-      if (unlikely(!__pyx_t_12)) {
+      __pyx_t_3 = __pyx_t_5(__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 = 2055; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2058; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         }
         break;
       }
-      __Pyx_GOTREF(__pyx_t_12);
+      __Pyx_GOTREF(__pyx_t_3);
     }
-    __Pyx_XDECREF_SET(__pyx_v_e_w, __pyx_t_12);
-    __pyx_t_12 = 0;
+    __Pyx_XDECREF_SET(__pyx_v__, __pyx_t_3);
+    __pyx_t_3 = 0;
+    __pyx_t_3 = PyList_New(0); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2058; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_3);
+    if (unlikely(__Pyx_ListComp_Append(__pyx_t_4, (PyObject*)__pyx_t_3))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2058; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
+  }
+  __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
+  __pyx_v_aligned_fe = ((PyObject*)__pyx_t_4);
+  __pyx_t_4 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2056
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2059
  *         # Update Bilexical counts
- *         for e_w in e_words:
- *             stats.bilex_e[e_w] += 1             # <<<<<<<<<<<<<<
- *         for f_w in f_words:
- *             stats.bilex_f[f_w] += 1
+ *         aligned_fe = [list() for _ in range(len(f_words))]
+ *         aligned_ef = [list() for _ in range(len(e_words))]             # <<<<<<<<<<<<<<
+ *         for (i, j) in alignment:
+ *             aligned_fe[i].append(j)
  */
-    __pyx_t_12 = __Pyx_PyObject_GetAttrStr(__pyx_v_stats, __pyx_n_s__bilex_e); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2056; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_12);
-    __Pyx_INCREF(__pyx_v_e_w);
-    __pyx_t_7 = __pyx_v_e_w;
-    __pyx_t_4 = PyObject_GetItem(__pyx_t_12, __pyx_t_7); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2056; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_4 = PyList_New(0); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2059; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __pyx_t_6 = __pyx_cur_scope->__pyx_v_e_words;
+  __Pyx_INCREF(__pyx_t_6);
+  __pyx_t_2 = PyObject_Length(__pyx_t_6); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2059; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
+  __pyx_t_6 = PyInt_FromSsize_t(__pyx_t_2); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2059; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_6);
+  __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2059; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_6);
+  __Pyx_GIVEREF(__pyx_t_6);
+  __pyx_t_6 = 0;
+  __pyx_t_6 = PyObject_Call(__pyx_builtin_range, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2059; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_6);
+  __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
+  if (PyList_CheckExact(__pyx_t_6) || PyTuple_CheckExact(__pyx_t_6)) {
+    __pyx_t_3 = __pyx_t_6; __Pyx_INCREF(__pyx_t_3); __pyx_t_2 = 0;
+    __pyx_t_5 = NULL;
+  } else {
+    __pyx_t_2 = -1; __pyx_t_3 = PyObject_GetIter(__pyx_t_6); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2059; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_3);
+    __pyx_t_5 = Py_TYPE(__pyx_t_3)->tp_iternext;
+  }
+  __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
+  for (;;) {
+    if (!__pyx_t_5 && PyList_CheckExact(__pyx_t_3)) {
+      if (__pyx_t_2 >= PyList_GET_SIZE(__pyx_t_3)) break;
+      #if CYTHON_COMPILING_IN_CPYTHON
+      __pyx_t_6 = PyList_GET_ITEM(__pyx_t_3, __pyx_t_2); __Pyx_INCREF(__pyx_t_6); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2059; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      #else
+      __pyx_t_6 = PySequence_ITEM(__pyx_t_3, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2059; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      #endif
+    } else if (!__pyx_t_5 && PyTuple_CheckExact(__pyx_t_3)) {
+      if (__pyx_t_2 >= PyTuple_GET_SIZE(__pyx_t_3)) break;
+      #if CYTHON_COMPILING_IN_CPYTHON
+      __pyx_t_6 = PyTuple_GET_ITEM(__pyx_t_3, __pyx_t_2); __Pyx_INCREF(__pyx_t_6); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2059; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      #else
+      __pyx_t_6 = PySequence_ITEM(__pyx_t_3, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2059; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      #endif
+    } else {
+      __pyx_t_6 = __pyx_t_5(__pyx_t_3);
+      if (unlikely(!__pyx_t_6)) {
+        if (PyErr_Occurred()) {
+          if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
+          else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2059; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        }
+        break;
+      }
+      __Pyx_GOTREF(__pyx_t_6);
+    }
+    __Pyx_XDECREF_SET(__pyx_v__, __pyx_t_6);
+    __pyx_t_6 = 0;
+    __pyx_t_6 = PyList_New(0); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2059; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_6);
+    if (unlikely(__Pyx_ListComp_Append(__pyx_t_4, (PyObject*)__pyx_t_6))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2059; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_DECREF(((PyObject *)__pyx_t_6)); __pyx_t_6 = 0;
+  }
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  __pyx_v_aligned_ef = ((PyObject*)__pyx_t_4);
+  __pyx_t_4 = 0;
+
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2060
+ *         aligned_fe = [list() for _ in range(len(f_words))]
+ *         aligned_ef = [list() for _ in range(len(e_words))]
+ *         for (i, j) in alignment:             # <<<<<<<<<<<<<<
+ *             aligned_fe[i].append(j)
+ *             aligned_ef[j].append(i)
+ */
+  if (PyList_CheckExact(__pyx_v_alignment) || PyTuple_CheckExact(__pyx_v_alignment)) {
+    __pyx_t_4 = __pyx_v_alignment; __Pyx_INCREF(__pyx_t_4); __pyx_t_2 = 0;
+    __pyx_t_5 = NULL;
+  } else {
+    __pyx_t_2 = -1; __pyx_t_4 = PyObject_GetIter(__pyx_v_alignment); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2060; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_14 = PyNumber_InPlaceAdd(__pyx_t_4, __pyx_int_1); if (unlikely(!__pyx_t_14)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2056; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_14);
-    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    if (PyObject_SetItem(__pyx_t_12, __pyx_t_7, __pyx_t_14) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2056; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_DECREF(__pyx_t_14); __pyx_t_14 = 0;
-    __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-    __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
+    __pyx_t_5 = Py_TYPE(__pyx_t_4)->tp_iternext;
   }
-  __Pyx_DECREF(__pyx_t_13); __pyx_t_13 = 0;
+  for (;;) {
+    if (!__pyx_t_5 && PyList_CheckExact(__pyx_t_4)) {
+      if (__pyx_t_2 >= PyList_GET_SIZE(__pyx_t_4)) break;
+      #if CYTHON_COMPILING_IN_CPYTHON
+      __pyx_t_3 = PyList_GET_ITEM(__pyx_t_4, __pyx_t_2); __Pyx_INCREF(__pyx_t_3); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2060; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      #else
+      __pyx_t_3 = PySequence_ITEM(__pyx_t_4, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2060; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      #endif
+    } else if (!__pyx_t_5 && PyTuple_CheckExact(__pyx_t_4)) {
+      if (__pyx_t_2 >= PyTuple_GET_SIZE(__pyx_t_4)) break;
+      #if CYTHON_COMPILING_IN_CPYTHON
+      __pyx_t_3 = PyTuple_GET_ITEM(__pyx_t_4, __pyx_t_2); __Pyx_INCREF(__pyx_t_3); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2060; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      #else
+      __pyx_t_3 = PySequence_ITEM(__pyx_t_4, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2060; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      #endif
+    } else {
+      __pyx_t_3 = __pyx_t_5(__pyx_t_4);
+      if (unlikely(!__pyx_t_3)) {
+        if (PyErr_Occurred()) {
+          if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
+          else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2060; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        }
+        break;
+      }
+      __Pyx_GOTREF(__pyx_t_3);
+    }
+    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
+      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[8]; __pyx_lineno = 2060; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      }
+      #if CYTHON_COMPILING_IN_CPYTHON
+      if (likely(PyTuple_CheckExact(sequence))) {
+        __pyx_t_6 = PyTuple_GET_ITEM(sequence, 0); 
+        __pyx_t_1 = PyTuple_GET_ITEM(sequence, 1); 
+      } else {
+        __pyx_t_6 = PyList_GET_ITEM(sequence, 0); 
+        __pyx_t_1 = PyList_GET_ITEM(sequence, 1); 
+      }
+      __Pyx_INCREF(__pyx_t_6);
+      __Pyx_INCREF(__pyx_t_1);
+      #else
+      __pyx_t_6 = PySequence_ITEM(sequence, 0); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2060; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_6);
+      __pyx_t_1 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2060; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_1);
+      #endif
+      __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+    } else
+    {
+      Py_ssize_t index = -1;
+      __pyx_t_7 = PyObject_GetIter(__pyx_t_3); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2060; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_7);
+      __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+      __pyx_t_8 = Py_TYPE(__pyx_t_7)->tp_iternext;
+      index = 0; __pyx_t_6 = __pyx_t_8(__pyx_t_7); if (unlikely(!__pyx_t_6)) goto __pyx_L31_unpacking_failed;
+      __Pyx_GOTREF(__pyx_t_6);
+      index = 1; __pyx_t_1 = __pyx_t_8(__pyx_t_7); if (unlikely(!__pyx_t_1)) goto __pyx_L31_unpacking_failed;
+      __Pyx_GOTREF(__pyx_t_1);
+      if (__Pyx_IternextUnpackEndCheck(__pyx_t_8(__pyx_t_7), 2) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2060; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = NULL;
+      __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
+      goto __pyx_L32_unpacking_done;
+      __pyx_L31_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[8]; __pyx_lineno = 2060; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_L32_unpacking_done:;
+    }
+    __Pyx_XDECREF_SET(__pyx_v_i, __pyx_t_6);
+    __pyx_t_6 = 0;
+    __Pyx_XDECREF_SET(__pyx_v_j, __pyx_t_1);
+    __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2057
- *         for e_w in e_words:
- *             stats.bilex_e[e_w] += 1
- *         for f_w in f_words:             # <<<<<<<<<<<<<<
- *             stats.bilex_f[f_w] += 1
- *             for e_w in e_words:
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2061
+ *         aligned_ef = [list() for _ in range(len(e_words))]
+ *         for (i, j) in alignment:
+ *             aligned_fe[i].append(j)             # <<<<<<<<<<<<<<
+ *             aligned_ef[j].append(i)
+ *         for f_i in range(len(f_words)):
  */
-  if (PyList_CheckExact(__pyx_cur_scope->__pyx_v_f_words) || PyTuple_CheckExact(__pyx_cur_scope->__pyx_v_f_words)) {
-    __pyx_t_13 = __pyx_cur_scope->__pyx_v_f_words; __Pyx_INCREF(__pyx_t_13); __pyx_t_2 = 0;
+    __pyx_t_3 = PyObject_GetItem(((PyObject *)__pyx_v_aligned_fe), __pyx_v_i); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2061; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_3);
+    __pyx_t_1 = __Pyx_PyObject_Append(__pyx_t_3, __pyx_v_j); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2061; __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;
+
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2062
+ *         for (i, j) in alignment:
+ *             aligned_fe[i].append(j)
+ *             aligned_ef[j].append(i)             # <<<<<<<<<<<<<<
+ *         for f_i in range(len(f_words)):
+ *             e_i_aligned = aligned_fe[f_i]
+ */
+    __pyx_t_1 = PyObject_GetItem(((PyObject *)__pyx_v_aligned_ef), __pyx_v_j); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2062; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_1);
+    __pyx_t_3 = __Pyx_PyObject_Append(__pyx_t_1, __pyx_v_i); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2062; __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;
+  }
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2063
+ *             aligned_fe[i].append(j)
+ *             aligned_ef[j].append(i)
+ *         for f_i in range(len(f_words)):             # <<<<<<<<<<<<<<
+ *             e_i_aligned = aligned_fe[f_i]
+ *             lc = len(e_i_aligned)
+ */
+  __pyx_t_4 = __pyx_cur_scope->__pyx_v_f_words;
+  __Pyx_INCREF(__pyx_t_4);
+  __pyx_t_2 = PyObject_Length(__pyx_t_4); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2063; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+  __pyx_t_4 = PyInt_FromSsize_t(__pyx_t_2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2063; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2063; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_4);
+  __Pyx_GIVEREF(__pyx_t_4);
+  __pyx_t_4 = 0;
+  __pyx_t_4 = PyObject_Call(__pyx_builtin_range, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2063; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
+  if (PyList_CheckExact(__pyx_t_4) || PyTuple_CheckExact(__pyx_t_4)) {
+    __pyx_t_3 = __pyx_t_4; __Pyx_INCREF(__pyx_t_3); __pyx_t_2 = 0;
     __pyx_t_5 = NULL;
   } else {
-    __pyx_t_2 = -1; __pyx_t_13 = PyObject_GetIter(__pyx_cur_scope->__pyx_v_f_words); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2057; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_13);
-    __pyx_t_5 = Py_TYPE(__pyx_t_13)->tp_iternext;
+    __pyx_t_2 = -1; __pyx_t_3 = PyObject_GetIter(__pyx_t_4); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2063; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_3);
+    __pyx_t_5 = Py_TYPE(__pyx_t_3)->tp_iternext;
   }
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
   for (;;) {
-    if (!__pyx_t_5 && PyList_CheckExact(__pyx_t_13)) {
-      if (__pyx_t_2 >= PyList_GET_SIZE(__pyx_t_13)) break;
+    if (!__pyx_t_5 && PyList_CheckExact(__pyx_t_3)) {
+      if (__pyx_t_2 >= PyList_GET_SIZE(__pyx_t_3)) break;
       #if CYTHON_COMPILING_IN_CPYTHON
-      __pyx_t_12 = PyList_GET_ITEM(__pyx_t_13, __pyx_t_2); __Pyx_INCREF(__pyx_t_12); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2057; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyList_GET_ITEM(__pyx_t_3, __pyx_t_2); __Pyx_INCREF(__pyx_t_4); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2063; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #else
-      __pyx_t_12 = PySequence_ITEM(__pyx_t_13, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2057; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PySequence_ITEM(__pyx_t_3, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2063; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #endif
-    } else if (!__pyx_t_5 && PyTuple_CheckExact(__pyx_t_13)) {
-      if (__pyx_t_2 >= PyTuple_GET_SIZE(__pyx_t_13)) break;
+    } else if (!__pyx_t_5 && PyTuple_CheckExact(__pyx_t_3)) {
+      if (__pyx_t_2 >= PyTuple_GET_SIZE(__pyx_t_3)) break;
       #if CYTHON_COMPILING_IN_CPYTHON
-      __pyx_t_12 = PyTuple_GET_ITEM(__pyx_t_13, __pyx_t_2); __Pyx_INCREF(__pyx_t_12); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2057; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyTuple_GET_ITEM(__pyx_t_3, __pyx_t_2); __Pyx_INCREF(__pyx_t_4); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2063; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #else
-      __pyx_t_12 = PySequence_ITEM(__pyx_t_13, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2057; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PySequence_ITEM(__pyx_t_3, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2063; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #endif
     } else {
-      __pyx_t_12 = __pyx_t_5(__pyx_t_13);
-      if (unlikely(!__pyx_t_12)) {
+      __pyx_t_4 = __pyx_t_5(__pyx_t_3);
+      if (unlikely(!__pyx_t_4)) {
         if (PyErr_Occurred()) {
           if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-          else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2057; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2063; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         }
         break;
       }
-      __Pyx_GOTREF(__pyx_t_12);
+      __Pyx_GOTREF(__pyx_t_4);
     }
-    __Pyx_XDECREF_SET(__pyx_v_f_w, __pyx_t_12);
-    __pyx_t_12 = 0;
+    __Pyx_XDECREF_SET(__pyx_v_f_i, __pyx_t_4);
+    __pyx_t_4 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2058
- *             stats.bilex_e[e_w] += 1
- *         for f_w in f_words:
- *             stats.bilex_f[f_w] += 1             # <<<<<<<<<<<<<<
- *             for e_w in e_words:
- *                 stats.bilex_fe[f_w][e_w] += 1
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2064
+ *             aligned_ef[j].append(i)
+ *         for f_i in range(len(f_words)):
+ *             e_i_aligned = aligned_fe[f_i]             # <<<<<<<<<<<<<<
+ *             lc = len(e_i_aligned)
+ *             if lc > 0:
  */
-    __pyx_t_12 = __Pyx_PyObject_GetAttrStr(__pyx_v_stats, __pyx_n_s__bilex_f); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2058; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_12);
-    __Pyx_INCREF(__pyx_v_f_w);
-    __pyx_t_7 = __pyx_v_f_w;
-    __pyx_t_14 = PyObject_GetItem(__pyx_t_12, __pyx_t_7); if (!__pyx_t_14) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2058; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_14);
-    __pyx_t_4 = PyNumber_InPlaceAdd(__pyx_t_14, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2058; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyObject_GetItem(((PyObject *)__pyx_v_aligned_fe), __pyx_v_f_i); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2064; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_4);
+    __Pyx_XDECREF_SET(__pyx_v_e_i_aligned, __pyx_t_4);
+    __pyx_t_4 = 0;
+
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2065
+ *         for f_i in range(len(f_words)):
+ *             e_i_aligned = aligned_fe[f_i]
+ *             lc = len(e_i_aligned)             # <<<<<<<<<<<<<<
+ *             if lc > 0:
+ *                 stats.bilex_f[f_words[f_i]] += 1
+ */
+    __pyx_t_14 = PyObject_Length(__pyx_v_e_i_aligned); if (unlikely(__pyx_t_14 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2065; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyInt_FromSsize_t(__pyx_t_14); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2065; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
-    __Pyx_DECREF(__pyx_t_14); __pyx_t_14 = 0;
-    if (PyObject_SetItem(__pyx_t_12, __pyx_t_7, __pyx_t_4) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2058; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_XDECREF_SET(__pyx_v_lc, __pyx_t_4);
+    __pyx_t_4 = 0;
+
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2066
+ *             e_i_aligned = aligned_fe[f_i]
+ *             lc = len(e_i_aligned)
+ *             if lc > 0:             # <<<<<<<<<<<<<<
+ *                 stats.bilex_f[f_words[f_i]] += 1
+ *                 for e_i in e_i_aligned:
+ */
+    __pyx_t_4 = PyObject_RichCompare(__pyx_v_lc, __pyx_int_0, Py_GT); __Pyx_XGOTREF(__pyx_t_4); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2066; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_9 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_9 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2066; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-    __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
+    if (__pyx_t_9) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2059
- *         for f_w in f_words:
- *             stats.bilex_f[f_w] += 1
- *             for e_w in e_words:             # <<<<<<<<<<<<<<
- *                 stats.bilex_fe[f_w][e_w] += 1
- * 
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2067
+ *             lc = len(e_i_aligned)
+ *             if lc > 0:
+ *                 stats.bilex_f[f_words[f_i]] += 1             # <<<<<<<<<<<<<<
+ *                 for e_i in e_i_aligned:
+ *                     stats.bilex_fe[f_words[f_i]][e_words[e_i]] += (1.0) / lc
  */
-    if (PyList_CheckExact(__pyx_cur_scope->__pyx_v_e_words) || PyTuple_CheckExact(__pyx_cur_scope->__pyx_v_e_words)) {
-      __pyx_t_12 = __pyx_cur_scope->__pyx_v_e_words; __Pyx_INCREF(__pyx_t_12); __pyx_t_15 = 0;
-      __pyx_t_16 = NULL;
-    } else {
-      __pyx_t_15 = -1; __pyx_t_12 = PyObject_GetIter(__pyx_cur_scope->__pyx_v_e_words); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2059; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_12);
-      __pyx_t_16 = Py_TYPE(__pyx_t_12)->tp_iternext;
-    }
-    for (;;) {
-      if (!__pyx_t_16 && PyList_CheckExact(__pyx_t_12)) {
-        if (__pyx_t_15 >= PyList_GET_SIZE(__pyx_t_12)) break;
-        #if CYTHON_COMPILING_IN_CPYTHON
-        __pyx_t_7 = PyList_GET_ITEM(__pyx_t_12, __pyx_t_15); __Pyx_INCREF(__pyx_t_7); __pyx_t_15++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2059; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        #else
-        __pyx_t_7 = PySequence_ITEM(__pyx_t_12, __pyx_t_15); __pyx_t_15++; if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2059; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        #endif
-      } else if (!__pyx_t_16 && PyTuple_CheckExact(__pyx_t_12)) {
-        if (__pyx_t_15 >= PyTuple_GET_SIZE(__pyx_t_12)) break;
-        #if CYTHON_COMPILING_IN_CPYTHON
-        __pyx_t_7 = PyTuple_GET_ITEM(__pyx_t_12, __pyx_t_15); __Pyx_INCREF(__pyx_t_7); __pyx_t_15++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2059; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        #else
-        __pyx_t_7 = PySequence_ITEM(__pyx_t_12, __pyx_t_15); __pyx_t_15++; if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2059; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        #endif
+      __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_v_stats, __pyx_n_s__bilex_f); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2067; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_4);
+      __pyx_t_1 = PyObject_GetItem(__pyx_cur_scope->__pyx_v_f_words, __pyx_v_f_i); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2067; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_1);
+      __pyx_t_6 = PyObject_GetItem(__pyx_t_4, __pyx_t_1); if (!__pyx_t_6) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2067; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_6);
+      __pyx_t_7 = PyNumber_InPlaceAdd(__pyx_t_6, __pyx_int_1); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2067; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_7);
+      __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
+      if (PyObject_SetItem(__pyx_t_4, __pyx_t_1, __pyx_t_7) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2067; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
+      __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+      __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2068
+ *             if lc > 0:
+ *                 stats.bilex_f[f_words[f_i]] += 1
+ *                 for e_i in e_i_aligned:             # <<<<<<<<<<<<<<
+ *                     stats.bilex_fe[f_words[f_i]][e_words[e_i]] += (1.0) / lc
+ *         for e_i in range(len(e_words)):
+ */
+      if (PyList_CheckExact(__pyx_v_e_i_aligned) || PyTuple_CheckExact(__pyx_v_e_i_aligned)) {
+        __pyx_t_4 = __pyx_v_e_i_aligned; __Pyx_INCREF(__pyx_t_4); __pyx_t_14 = 0;
+        __pyx_t_15 = NULL;
       } else {
-        __pyx_t_7 = __pyx_t_16(__pyx_t_12);
-        if (unlikely(!__pyx_t_7)) {
-          if (PyErr_Occurred()) {
-            if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-            else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2059; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_14 = -1; __pyx_t_4 = PyObject_GetIter(__pyx_v_e_i_aligned); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2068; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_4);
+        __pyx_t_15 = Py_TYPE(__pyx_t_4)->tp_iternext;
+      }
+      for (;;) {
+        if (!__pyx_t_15 && PyList_CheckExact(__pyx_t_4)) {
+          if (__pyx_t_14 >= PyList_GET_SIZE(__pyx_t_4)) break;
+          #if CYTHON_COMPILING_IN_CPYTHON
+          __pyx_t_1 = PyList_GET_ITEM(__pyx_t_4, __pyx_t_14); __Pyx_INCREF(__pyx_t_1); __pyx_t_14++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2068; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          #else
+          __pyx_t_1 = PySequence_ITEM(__pyx_t_4, __pyx_t_14); __pyx_t_14++; if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2068; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          #endif
+        } else if (!__pyx_t_15 && PyTuple_CheckExact(__pyx_t_4)) {
+          if (__pyx_t_14 >= PyTuple_GET_SIZE(__pyx_t_4)) break;
+          #if CYTHON_COMPILING_IN_CPYTHON
+          __pyx_t_1 = PyTuple_GET_ITEM(__pyx_t_4, __pyx_t_14); __Pyx_INCREF(__pyx_t_1); __pyx_t_14++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2068; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          #else
+          __pyx_t_1 = PySequence_ITEM(__pyx_t_4, __pyx_t_14); __pyx_t_14++; if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2068; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          #endif
+        } else {
+          __pyx_t_1 = __pyx_t_15(__pyx_t_4);
+          if (unlikely(!__pyx_t_1)) {
+            if (PyErr_Occurred()) {
+              if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
+              else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2068; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            }
+            break;
           }
-          break;
+          __Pyx_GOTREF(__pyx_t_1);
         }
+        __Pyx_XDECREF_SET(__pyx_v_e_i, __pyx_t_1);
+        __pyx_t_1 = 0;
+
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2069
+ *                 stats.bilex_f[f_words[f_i]] += 1
+ *                 for e_i in e_i_aligned:
+ *                     stats.bilex_fe[f_words[f_i]][e_words[e_i]] += (1.0) / lc             # <<<<<<<<<<<<<<
+ *         for e_i in range(len(e_words)):
+ *             f_i_aligned = aligned_ef[e_i]
+ */
+        __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_stats, __pyx_n_s__bilex_fe); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2069; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_1);
+        __pyx_t_7 = PyObject_GetItem(__pyx_cur_scope->__pyx_v_f_words, __pyx_v_f_i); if (!__pyx_t_7) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2069; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_7);
+        __pyx_t_6 = PyObject_GetItem(__pyx_t_1, __pyx_t_7); if (!__pyx_t_6) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2069; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_6);
+        __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+        __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
+        __pyx_t_7 = PyObject_GetItem(__pyx_cur_scope->__pyx_v_e_words, __pyx_v_e_i); if (!__pyx_t_7) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2069; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_7);
+        __pyx_t_1 = PyObject_GetItem(__pyx_t_6, __pyx_t_7); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2069; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_1);
+        __pyx_t_13 = PyFloat_FromDouble(1.0); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2069; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_13);
+        __pyx_t_16 = __Pyx_PyNumber_Divide(__pyx_t_13, __pyx_v_lc); if (unlikely(!__pyx_t_16)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2069; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_16);
+        __Pyx_DECREF(__pyx_t_13); __pyx_t_13 = 0;
+        __pyx_t_13 = PyNumber_InPlaceAdd(__pyx_t_1, __pyx_t_16); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2069; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_13);
+        __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+        __Pyx_DECREF(__pyx_t_16); __pyx_t_16 = 0;
+        if (PyObject_SetItem(__pyx_t_6, __pyx_t_7, __pyx_t_13) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2069; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_DECREF(__pyx_t_13); __pyx_t_13 = 0;
+        __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
+        __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
       }
-      __Pyx_XDECREF_SET(__pyx_v_e_w, __pyx_t_7);
-      __pyx_t_7 = 0;
+      __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+      goto __pyx_L35;
+    }
+    __pyx_L35:;
+  }
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2060
- *             stats.bilex_f[f_w] += 1
- *             for e_w in e_words:
- *                 stats.bilex_fe[f_w][e_w] += 1             # <<<<<<<<<<<<<<
- * 
- *     # Create a rule from source, target, non-terminals, and alignments
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2070
+ *                 for e_i in e_i_aligned:
+ *                     stats.bilex_fe[f_words[f_i]][e_words[e_i]] += (1.0) / lc
+ *         for e_i in range(len(e_words)):             # <<<<<<<<<<<<<<
+ *             f_i_aligned = aligned_ef[e_i]
+ *             lc = len(f_i_aligned)
+ */
+  __pyx_t_3 = __pyx_cur_scope->__pyx_v_e_words;
+  __Pyx_INCREF(__pyx_t_3);
+  __pyx_t_2 = PyObject_Length(__pyx_t_3); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2070; __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 = 2070; __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[8]; __pyx_lineno = 2070; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  PyTuple_SET_ITEM(__pyx_t_4, 0, __pyx_t_3);
+  __Pyx_GIVEREF(__pyx_t_3);
+  __pyx_t_3 = 0;
+  __pyx_t_3 = PyObject_Call(__pyx_builtin_range, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2070; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
+  if (PyList_CheckExact(__pyx_t_3) || PyTuple_CheckExact(__pyx_t_3)) {
+    __pyx_t_4 = __pyx_t_3; __Pyx_INCREF(__pyx_t_4); __pyx_t_2 = 0;
+    __pyx_t_5 = NULL;
+  } else {
+    __pyx_t_2 = -1; __pyx_t_4 = PyObject_GetIter(__pyx_t_3); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2070; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_4);
+    __pyx_t_5 = Py_TYPE(__pyx_t_4)->tp_iternext;
+  }
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  for (;;) {
+    if (!__pyx_t_5 && PyList_CheckExact(__pyx_t_4)) {
+      if (__pyx_t_2 >= PyList_GET_SIZE(__pyx_t_4)) break;
+      #if CYTHON_COMPILING_IN_CPYTHON
+      __pyx_t_3 = PyList_GET_ITEM(__pyx_t_4, __pyx_t_2); __Pyx_INCREF(__pyx_t_3); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2070; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      #else
+      __pyx_t_3 = PySequence_ITEM(__pyx_t_4, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2070; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      #endif
+    } else if (!__pyx_t_5 && PyTuple_CheckExact(__pyx_t_4)) {
+      if (__pyx_t_2 >= PyTuple_GET_SIZE(__pyx_t_4)) break;
+      #if CYTHON_COMPILING_IN_CPYTHON
+      __pyx_t_3 = PyTuple_GET_ITEM(__pyx_t_4, __pyx_t_2); __Pyx_INCREF(__pyx_t_3); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2070; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      #else
+      __pyx_t_3 = PySequence_ITEM(__pyx_t_4, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2070; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      #endif
+    } else {
+      __pyx_t_3 = __pyx_t_5(__pyx_t_4);
+      if (unlikely(!__pyx_t_3)) {
+        if (PyErr_Occurred()) {
+          if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
+          else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2070; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        }
+        break;
+      }
+      __Pyx_GOTREF(__pyx_t_3);
+    }
+    __Pyx_XDECREF_SET(__pyx_v_e_i, __pyx_t_3);
+    __pyx_t_3 = 0;
+
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2071
+ *                     stats.bilex_fe[f_words[f_i]][e_words[e_i]] += (1.0) / lc
+ *         for e_i in range(len(e_words)):
+ *             f_i_aligned = aligned_ef[e_i]             # <<<<<<<<<<<<<<
+ *             lc = len(f_i_aligned)
+ *             if lc > 0:
  */
-      __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_v_stats, __pyx_n_s__bilex_fe); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2060; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_GetItem(((PyObject *)__pyx_v_aligned_ef), __pyx_v_e_i); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2071; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_3);
+    __Pyx_XDECREF_SET(__pyx_v_f_i_aligned, __pyx_t_3);
+    __pyx_t_3 = 0;
+
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2072
+ *         for e_i in range(len(e_words)):
+ *             f_i_aligned = aligned_ef[e_i]
+ *             lc = len(f_i_aligned)             # <<<<<<<<<<<<<<
+ *             if lc > 0:
+ *                 stats.bilex_e[e_words[e_i]] += 1
+ */
+    __pyx_t_14 = PyObject_Length(__pyx_v_f_i_aligned); if (unlikely(__pyx_t_14 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2072; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyInt_FromSsize_t(__pyx_t_14); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2072; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_3);
+    __Pyx_XDECREF_SET(__pyx_v_lc, __pyx_t_3);
+    __pyx_t_3 = 0;
+
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2073
+ *             f_i_aligned = aligned_ef[e_i]
+ *             lc = len(f_i_aligned)
+ *             if lc > 0:             # <<<<<<<<<<<<<<
+ *                 stats.bilex_e[e_words[e_i]] += 1
+ *                 for f_i in f_i_aligned:
+ */
+    __pyx_t_3 = PyObject_RichCompare(__pyx_v_lc, __pyx_int_0, Py_GT); __Pyx_XGOTREF(__pyx_t_3); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2073; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_9 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_9 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2073; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+    if (__pyx_t_9) {
+
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2074
+ *             lc = len(f_i_aligned)
+ *             if lc > 0:
+ *                 stats.bilex_e[e_words[e_i]] += 1             # <<<<<<<<<<<<<<
+ *                 for f_i in f_i_aligned:
+ *                     stats.bilex_ef[e_words[e_i]][f_words[f_i]] += (1.0) / lc
+ */
+      __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_stats, __pyx_n_s__bilex_e); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2074; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_3);
+      __pyx_t_6 = PyObject_GetItem(__pyx_cur_scope->__pyx_v_e_words, __pyx_v_e_i); if (!__pyx_t_6) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2074; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_6);
+      __pyx_t_7 = PyObject_GetItem(__pyx_t_3, __pyx_t_6); if (!__pyx_t_7) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2074; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_7);
-      __pyx_t_4 = PyObject_GetItem(__pyx_t_7, __pyx_v_f_w); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2060; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_4);
+      __pyx_t_13 = PyNumber_InPlaceAdd(__pyx_t_7, __pyx_int_1); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2074; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_13);
       __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-      __Pyx_INCREF(__pyx_v_e_w);
-      __pyx_t_7 = __pyx_v_e_w;
-      __pyx_t_14 = PyObject_GetItem(__pyx_t_4, __pyx_t_7); if (!__pyx_t_14) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2060; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_14);
-      __pyx_t_3 = PyNumber_InPlaceAdd(__pyx_t_14, __pyx_int_1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2060; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_3);
-      __Pyx_DECREF(__pyx_t_14); __pyx_t_14 = 0;
-      if (PyObject_SetItem(__pyx_t_4, __pyx_t_7, __pyx_t_3) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2060; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      if (PyObject_SetItem(__pyx_t_3, __pyx_t_6, __pyx_t_13) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2074; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_DECREF(__pyx_t_13); __pyx_t_13 = 0;
+      __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-      __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-      __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2075
+ *             if lc > 0:
+ *                 stats.bilex_e[e_words[e_i]] += 1
+ *                 for f_i in f_i_aligned:             # <<<<<<<<<<<<<<
+ *                     stats.bilex_ef[e_words[e_i]][f_words[f_i]] += (1.0) / lc
+ * 
+ */
+      if (PyList_CheckExact(__pyx_v_f_i_aligned) || PyTuple_CheckExact(__pyx_v_f_i_aligned)) {
+        __pyx_t_3 = __pyx_v_f_i_aligned; __Pyx_INCREF(__pyx_t_3); __pyx_t_14 = 0;
+        __pyx_t_15 = NULL;
+      } else {
+        __pyx_t_14 = -1; __pyx_t_3 = PyObject_GetIter(__pyx_v_f_i_aligned); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2075; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_3);
+        __pyx_t_15 = Py_TYPE(__pyx_t_3)->tp_iternext;
+      }
+      for (;;) {
+        if (!__pyx_t_15 && PyList_CheckExact(__pyx_t_3)) {
+          if (__pyx_t_14 >= PyList_GET_SIZE(__pyx_t_3)) break;
+          #if CYTHON_COMPILING_IN_CPYTHON
+          __pyx_t_6 = PyList_GET_ITEM(__pyx_t_3, __pyx_t_14); __Pyx_INCREF(__pyx_t_6); __pyx_t_14++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2075; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          #else
+          __pyx_t_6 = PySequence_ITEM(__pyx_t_3, __pyx_t_14); __pyx_t_14++; if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2075; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          #endif
+        } else if (!__pyx_t_15 && PyTuple_CheckExact(__pyx_t_3)) {
+          if (__pyx_t_14 >= PyTuple_GET_SIZE(__pyx_t_3)) break;
+          #if CYTHON_COMPILING_IN_CPYTHON
+          __pyx_t_6 = PyTuple_GET_ITEM(__pyx_t_3, __pyx_t_14); __Pyx_INCREF(__pyx_t_6); __pyx_t_14++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2075; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          #else
+          __pyx_t_6 = PySequence_ITEM(__pyx_t_3, __pyx_t_14); __pyx_t_14++; if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2075; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          #endif
+        } else {
+          __pyx_t_6 = __pyx_t_15(__pyx_t_3);
+          if (unlikely(!__pyx_t_6)) {
+            if (PyErr_Occurred()) {
+              if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
+              else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2075; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            }
+            break;
+          }
+          __Pyx_GOTREF(__pyx_t_6);
+        }
+        __Pyx_XDECREF_SET(__pyx_v_f_i, __pyx_t_6);
+        __pyx_t_6 = 0;
+
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2076
+ *                 stats.bilex_e[e_words[e_i]] += 1
+ *                 for f_i in f_i_aligned:
+ *                     stats.bilex_ef[e_words[e_i]][f_words[f_i]] += (1.0) / lc             # <<<<<<<<<<<<<<
+ * 
+ *     # Create a rule from source, target, non-terminals, and alignments
+ */
+        __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_v_stats, __pyx_n_s__bilex_ef); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2076; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_6);
+        __pyx_t_13 = PyObject_GetItem(__pyx_cur_scope->__pyx_v_e_words, __pyx_v_e_i); if (!__pyx_t_13) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2076; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_13);
+        __pyx_t_7 = PyObject_GetItem(__pyx_t_6, __pyx_t_13); if (!__pyx_t_7) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2076; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_7);
+        __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
+        __Pyx_DECREF(__pyx_t_13); __pyx_t_13 = 0;
+        __pyx_t_13 = PyObject_GetItem(__pyx_cur_scope->__pyx_v_f_words, __pyx_v_f_i); if (!__pyx_t_13) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2076; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_13);
+        __pyx_t_6 = PyObject_GetItem(__pyx_t_7, __pyx_t_13); if (!__pyx_t_6) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2076; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_6);
+        __pyx_t_16 = PyFloat_FromDouble(1.0); if (unlikely(!__pyx_t_16)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2076; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_16);
+        __pyx_t_1 = __Pyx_PyNumber_Divide(__pyx_t_16, __pyx_v_lc); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2076; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_1);
+        __Pyx_DECREF(__pyx_t_16); __pyx_t_16 = 0;
+        __pyx_t_16 = PyNumber_InPlaceAdd(__pyx_t_6, __pyx_t_1); if (unlikely(!__pyx_t_16)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2076; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_16);
+        __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
+        __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+        if (PyObject_SetItem(__pyx_t_7, __pyx_t_13, __pyx_t_16) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2076; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_DECREF(__pyx_t_16); __pyx_t_16 = 0;
+        __Pyx_DECREF(__pyx_t_13); __pyx_t_13 = 0;
+        __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
+      }
+      __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+      goto __pyx_L40;
     }
-    __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
+    __pyx_L40:;
   }
-  __Pyx_DECREF(__pyx_t_13); __pyx_t_13 = 0;
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
   __pyx_r = Py_None; __Pyx_INCREF(Py_None);
   goto __pyx_L0;
@@ -62946,9 +63595,8 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_25add_instanc
   __Pyx_XDECREF(__pyx_t_4);
   __Pyx_XDECREF(__pyx_t_6);
   __Pyx_XDECREF(__pyx_t_7);
-  __Pyx_XDECREF(__pyx_t_12);
   __Pyx_XDECREF(__pyx_t_13);
-  __Pyx_XDECREF(__pyx_t_14);
+  __Pyx_XDECREF(__pyx_t_16);
   __Pyx_AddTraceback("cdec.sa._sa.HieroCachingRuleFactory.add_instance", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __pyx_r = NULL;
   __pyx_L0:;
@@ -62956,15 +63604,22 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_25add_instanc
   __Pyx_XDECREF(__pyx_v_f);
   __Pyx_XDECREF(__pyx_v_e);
   __Pyx_XDECREF(__pyx_v_f_nt_cover);
+  __Pyx_XDECREF(__pyx_v_f_i);
   __Pyx_XDECREF(__pyx_v_stats);
   __Pyx_XDECREF(__pyx_v_lex_i);
   __Pyx_XDECREF(__pyx_v_lex_j);
   __Pyx_XDECREF(__pyx_v_rule);
   __Pyx_XDECREF(__pyx_v_f_ph);
   __Pyx_XDECREF(__pyx_v_e_ph);
-  __Pyx_XDECREF(__pyx_v_e_w);
-  __Pyx_XDECREF(__pyx_v_f_w);
+  __Pyx_XDECREF(__pyx_v_aligned_fe);
+  __Pyx_XDECREF(__pyx_v_aligned_ef);
   __Pyx_XDECREF(__pyx_v_i);
+  __Pyx_XDECREF(__pyx_v_j);
+  __Pyx_XDECREF(__pyx_v_e_i_aligned);
+  __Pyx_XDECREF(__pyx_v_lc);
+  __Pyx_XDECREF(__pyx_v_e_i);
+  __Pyx_XDECREF(__pyx_v_f_i_aligned);
+  __Pyx_XDECREF(__pyx_v__);
   __Pyx_DECREF(((PyObject *)__pyx_cur_scope));
   __Pyx_XGIVEREF(__pyx_r);
   __Pyx_RefNannyFinishContext();
@@ -63010,31 +63665,31 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_28form_rule(P
         case  1:
         if (likely((values[1] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__e_i)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("form_rule", 1, 6, 6, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2063; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("form_rule", 1, 6, 6, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2079; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
         case  2:
         if (likely((values[2] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__f_span)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("form_rule", 1, 6, 6, 2); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2063; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("form_rule", 1, 6, 6, 2); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2079; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
         case  3:
         if (likely((values[3] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__e_span)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("form_rule", 1, 6, 6, 3); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2063; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("form_rule", 1, 6, 6, 3); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2079; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
         case  4:
         if (likely((values[4] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__nt)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("form_rule", 1, 6, 6, 4); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2063; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("form_rule", 1, 6, 6, 4); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2079; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
         case  5:
         if (likely((values[5] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__al)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("form_rule", 1, 6, 6, 5); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2063; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("form_rule", 1, 6, 6, 5); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2079; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "form_rule") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2063; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "form_rule") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2079; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else if (PyTuple_GET_SIZE(__pyx_args) != 6) {
       goto __pyx_L5_argtuple_error;
@@ -63055,7 +63710,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_28form_rule(P
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("form_rule", 1, 6, 6, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2063; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+  __Pyx_RaiseArgtupleInvalid("form_rule", 1, 6, 6, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2079; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_AddTraceback("cdec.sa._sa.HieroCachingRuleFactory.form_rule", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -63067,9 +63722,9 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_28form_rule(P
 }
 
 /* Python wrapper */
-static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_9form_rule_lambda7(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static PyMethodDef __pyx_mdef_4cdec_2sa_3_sa_23HieroCachingRuleFactory_9form_rule_lambda7 = {__Pyx_NAMESTR("lambda7"), (PyCFunction)__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_9form_rule_lambda7, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)};
-static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_9form_rule_lambda7(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_9form_rule_lambda8(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static PyMethodDef __pyx_mdef_4cdec_2sa_3_sa_23HieroCachingRuleFactory_9form_rule_lambda8 = {__Pyx_NAMESTR("lambda8"), (PyCFunction)__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_9form_rule_lambda8, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)};
+static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_9form_rule_lambda8(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_x = 0;
   PyObject *__pyx_v_y = 0;
   int __pyx_lineno = 0;
@@ -63077,7 +63732,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_9form_rule_la
   int __pyx_clineno = 0;
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
-  __Pyx_RefNannySetupContext("lambda7 (wrapper)", 0);
+  __Pyx_RefNannySetupContext("lambda8 (wrapper)", 0);
   {
     static PyObject **__pyx_pyargnames[] = {&__pyx_n_s__x,&__pyx_n_s__y,0};
     PyObject* values[2] = {0,0};
@@ -63098,11 +63753,11 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_9form_rule_la
         case  1:
         if (likely((values[1] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__y)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("lambda7", 1, 2, 2, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2066; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("lambda8", 1, 2, 2, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2082; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "lambda7") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2066; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "lambda8") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2082; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else if (PyTuple_GET_SIZE(__pyx_args) != 2) {
       goto __pyx_L5_argtuple_error;
@@ -63115,18 +63770,18 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_9form_rule_la
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("lambda7", 1, 2, 2, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2066; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+  __Pyx_RaiseArgtupleInvalid("lambda8", 1, 2, 2, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2082; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
-  __Pyx_AddTraceback("cdec.sa._sa.HieroCachingRuleFactory.form_rule.lambda7", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec.sa._sa.HieroCachingRuleFactory.form_rule.lambda8", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
   return NULL;
   __pyx_L4_argument_unpacking_done:;
-  __pyx_r = __pyx_lambda_funcdef_lambda7(__pyx_self, __pyx_v_x, __pyx_v_y);
+  __pyx_r = __pyx_lambda_funcdef_lambda8(__pyx_self, __pyx_v_x, __pyx_v_y);
   __Pyx_RefNannyFinishContext();
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2066
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2082
  * 
  *         # Substitute in non-terminals
  *         nt_inv = sorted(nt, cmp=lambda x, y: cmp(x[3], y[3]))             # <<<<<<<<<<<<<<
@@ -63134,7 +63789,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_9form_rule_la
  *         off = f_i
  */
 
-static PyObject *__pyx_lambda_funcdef_lambda7(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_x, PyObject *__pyx_v_y) {
+static PyObject *__pyx_lambda_funcdef_lambda8(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_x, PyObject *__pyx_v_y) {
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
   PyObject *__pyx_t_1 = NULL;
@@ -63143,13 +63798,13 @@ static PyObject *__pyx_lambda_funcdef_lambda7(CYTHON_UNUSED PyObject *__pyx_self
   int __pyx_lineno = 0;
   const char *__pyx_filename = NULL;
   int __pyx_clineno = 0;
-  __Pyx_RefNannySetupContext("lambda7", 0);
+  __Pyx_RefNannySetupContext("lambda8", 0);
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_x, 3, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2066; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_x, 3, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2082; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_y, 3, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2066; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_y, 3, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2082; __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 = 2066; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2082; __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);
@@ -63157,7 +63812,7 @@ static PyObject *__pyx_lambda_funcdef_lambda7(CYTHON_UNUSED PyObject *__pyx_self
   __Pyx_GIVEREF(__pyx_t_2);
   __pyx_t_1 = 0;
   __pyx_t_2 = 0;
-  __pyx_t_2 = PyObject_Call(__pyx_builtin_cmp, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2066; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyObject_Call(__pyx_builtin_cmp, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2082; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
   __pyx_r = __pyx_t_2;
@@ -63170,7 +63825,7 @@ static PyObject *__pyx_lambda_funcdef_lambda7(CYTHON_UNUSED PyObject *__pyx_self
   __Pyx_XDECREF(__pyx_t_1);
   __Pyx_XDECREF(__pyx_t_2);
   __Pyx_XDECREF(__pyx_t_3);
-  __Pyx_AddTraceback("cdec.sa._sa.HieroCachingRuleFactory.form_rule.lambda7", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec.sa._sa.HieroCachingRuleFactory.form_rule.lambda8", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __pyx_r = NULL;
   __pyx_L0:;
   __Pyx_XGIVEREF(__pyx_r);
@@ -63179,9 +63834,9 @@ static PyObject *__pyx_lambda_funcdef_lambda7(CYTHON_UNUSED PyObject *__pyx_self
 }
 
 /* Python wrapper */
-static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_9form_rule_1lambda8(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static PyMethodDef __pyx_mdef_4cdec_2sa_3_sa_23HieroCachingRuleFactory_9form_rule_1lambda8 = {__Pyx_NAMESTR("lambda8"), (PyCFunction)__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_9form_rule_1lambda8, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)};
-static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_9form_rule_1lambda8(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_9form_rule_1lambda9(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static PyMethodDef __pyx_mdef_4cdec_2sa_3_sa_23HieroCachingRuleFactory_9form_rule_1lambda9 = {__Pyx_NAMESTR("lambda9"), (PyCFunction)__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_9form_rule_1lambda9, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)};
+static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_9form_rule_1lambda9(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_x = 0;
   PyObject *__pyx_v_y = 0;
   int __pyx_lineno = 0;
@@ -63189,7 +63844,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_9form_rule_1l
   int __pyx_clineno = 0;
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
-  __Pyx_RefNannySetupContext("lambda8 (wrapper)", 0);
+  __Pyx_RefNannySetupContext("lambda9 (wrapper)", 0);
   {
     static PyObject **__pyx_pyargnames[] = {&__pyx_n_s__x,&__pyx_n_s__y,0};
     PyObject* values[2] = {0,0};
@@ -63210,11 +63865,11 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_9form_rule_1l
         case  1:
         if (likely((values[1] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__y)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("lambda8", 1, 2, 2, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2090; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("lambda9", 1, 2, 2, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2106; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "lambda8") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2090; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "lambda9") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2106; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else if (PyTuple_GET_SIZE(__pyx_args) != 2) {
       goto __pyx_L5_argtuple_error;
@@ -63227,18 +63882,18 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_9form_rule_1l
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("lambda8", 1, 2, 2, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2090; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+  __Pyx_RaiseArgtupleInvalid("lambda9", 1, 2, 2, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2106; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
-  __Pyx_AddTraceback("cdec.sa._sa.HieroCachingRuleFactory.form_rule.lambda8", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec.sa._sa.HieroCachingRuleFactory.form_rule.lambda9", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
   return NULL;
   __pyx_L4_argument_unpacking_done:;
-  __pyx_r = __pyx_lambda_funcdef_lambda8(__pyx_self, __pyx_v_x, __pyx_v_y);
+  __pyx_r = __pyx_lambda_funcdef_lambda9(__pyx_self, __pyx_v_x, __pyx_v_y);
   __Pyx_RefNannyFinishContext();
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2090
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2106
  *         # Adjusting alignment links takes some doing
  *         links = [list(link) for sub in al for link in sub]
  *         links_inv = sorted(links, cmp=lambda x, y: cmp(x[1], y[1]))             # <<<<<<<<<<<<<<
@@ -63246,7 +63901,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_9form_rule_1l
  *         nt_len = len(nt)
  */
 
-static PyObject *__pyx_lambda_funcdef_lambda8(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_x, PyObject *__pyx_v_y) {
+static PyObject *__pyx_lambda_funcdef_lambda9(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_x, PyObject *__pyx_v_y) {
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
   PyObject *__pyx_t_1 = NULL;
@@ -63255,13 +63910,13 @@ static PyObject *__pyx_lambda_funcdef_lambda8(CYTHON_UNUSED PyObject *__pyx_self
   int __pyx_lineno = 0;
   const char *__pyx_filename = NULL;
   int __pyx_clineno = 0;
-  __Pyx_RefNannySetupContext("lambda8", 0);
+  __Pyx_RefNannySetupContext("lambda9", 0);
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_x, 1, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2090; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_x, 1, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2106; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_y, 1, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2090; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_y, 1, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2106; __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 = 2090; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2106; __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);
@@ -63269,7 +63924,7 @@ static PyObject *__pyx_lambda_funcdef_lambda8(CYTHON_UNUSED PyObject *__pyx_self
   __Pyx_GIVEREF(__pyx_t_2);
   __pyx_t_1 = 0;
   __pyx_t_2 = 0;
-  __pyx_t_2 = PyObject_Call(__pyx_builtin_cmp, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2090; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyObject_Call(__pyx_builtin_cmp, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2106; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
   __pyx_r = __pyx_t_2;
@@ -63282,7 +63937,7 @@ static PyObject *__pyx_lambda_funcdef_lambda8(CYTHON_UNUSED PyObject *__pyx_self
   __Pyx_XDECREF(__pyx_t_1);
   __Pyx_XDECREF(__pyx_t_2);
   __Pyx_XDECREF(__pyx_t_3);
-  __Pyx_AddTraceback("cdec.sa._sa.HieroCachingRuleFactory.form_rule.lambda8", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec.sa._sa.HieroCachingRuleFactory.form_rule.lambda9", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __pyx_r = NULL;
   __pyx_L0:;
   __Pyx_XGIVEREF(__pyx_r);
@@ -63291,7 +63946,7 @@ static PyObject *__pyx_lambda_funcdef_lambda8(CYTHON_UNUSED PyObject *__pyx_self
 }
 static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_9form_rule_4generator15(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2124
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2140
  *         f = Phrase(f_sym)
  *         e = Phrase(e_sym)
  *         a = tuple(self.alignment.link(i, j) for i, j in links)             # <<<<<<<<<<<<<<
@@ -63317,7 +63972,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_9form_rule_2g
   __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_4cdec_2sa_3_sa_23HieroCachingRuleFactory_9form_rule_4generator15, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2124; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_9form_rule_4generator15, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2140; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_cur_scope);
     __Pyx_RefNannyFinishContext();
     return (PyObject *) gen;
@@ -63361,19 +64016,19 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_9form_rule_4g
     return NULL;
   }
   __pyx_L3_first_run:;
-  if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2124; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (unlikely(!__pyx_cur_scope->__pyx_outer_scope->__pyx_v_links)) { __Pyx_RaiseClosureNameError("links"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2124; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+  if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2140; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (unlikely(!__pyx_cur_scope->__pyx_outer_scope->__pyx_v_links)) { __Pyx_RaiseClosureNameError("links"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2140; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
   if (unlikely(((PyObject *)__pyx_cur_scope->__pyx_outer_scope->__pyx_v_links) == Py_None)) {
     PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable");
-    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2124; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2140; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   }
   __pyx_t_1 = ((PyObject *)__pyx_cur_scope->__pyx_outer_scope->__pyx_v_links); __Pyx_INCREF(__pyx_t_1); __pyx_t_2 = 0;
   for (;;) {
     if (__pyx_t_2 >= PyList_GET_SIZE(__pyx_t_1)) break;
     #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++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2124; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyList_GET_ITEM(__pyx_t_1, __pyx_t_2); __Pyx_INCREF(__pyx_t_3); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2140; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     #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 = 2124; __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 = 2140; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     #endif
     if ((likely(PyTuple_CheckExact(__pyx_t_3))) || (PyList_CheckExact(__pyx_t_3))) {
       PyObject* sequence = __pyx_t_3;
@@ -63385,7 +64040,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_9form_rule_4g
       if (unlikely(size != 2)) {
         if (size > 2) __Pyx_RaiseTooManyValuesError(2);
         else if (size >= 0) __Pyx_RaiseNeedMoreValuesError(size);
-        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2124; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2140; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       }
       #if CYTHON_COMPILING_IN_CPYTHON
       if (likely(PyTuple_CheckExact(sequence))) {
@@ -63398,16 +64053,16 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_9form_rule_4g
       __Pyx_INCREF(__pyx_t_4);
       __Pyx_INCREF(__pyx_t_5);
       #else
-      __pyx_t_4 = PySequence_ITEM(sequence, 0); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2124; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PySequence_ITEM(sequence, 0); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2140; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_5 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2124; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_5 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2140; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_5);
       #endif
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     } else
     {
       Py_ssize_t index = -1;
-      __pyx_t_6 = PyObject_GetIter(__pyx_t_3); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2124; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = PyObject_GetIter(__pyx_t_3); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2140; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_6);
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       __pyx_t_7 = Py_TYPE(__pyx_t_6)->tp_iternext;
@@ -63415,7 +64070,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_9form_rule_4g
       __Pyx_GOTREF(__pyx_t_4);
       index = 1; __pyx_t_5 = __pyx_t_7(__pyx_t_6); if (unlikely(!__pyx_t_5)) goto __pyx_L6_unpacking_failed;
       __Pyx_GOTREF(__pyx_t_5);
-      if (__Pyx_IternextUnpackEndCheck(__pyx_t_7(__pyx_t_6), 2) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2124; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      if (__Pyx_IternextUnpackEndCheck(__pyx_t_7(__pyx_t_6), 2) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2140; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __pyx_t_7 = NULL;
       __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
       goto __pyx_L7_unpacking_done;
@@ -63423,7 +64078,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_9form_rule_4g
       __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
       __pyx_t_7 = NULL;
       if (__Pyx_IterFinish() == 0) __Pyx_RaiseNeedMoreValuesError(index);
-      {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2124; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2140; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __pyx_L7_unpacking_done:;
     }
     __Pyx_XGOTREF(__pyx_cur_scope->__pyx_v_i);
@@ -63434,10 +64089,10 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_9form_rule_4g
     __Pyx_XDECREF_SET(__pyx_cur_scope->__pyx_v_j, __pyx_t_5);
     __Pyx_GIVEREF(__pyx_t_5);
     __pyx_t_5 = 0;
-    if (unlikely(!__pyx_cur_scope->__pyx_outer_scope->__pyx_v_self)) { __Pyx_RaiseClosureNameError("self"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2124; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
-    __pyx_t_8 = __Pyx_PyInt_AsInt(__pyx_cur_scope->__pyx_v_i); if (unlikely((__pyx_t_8 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2124; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __pyx_t_9 = __Pyx_PyInt_AsInt(__pyx_cur_scope->__pyx_v_j); if (unlikely((__pyx_t_9 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2124; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __pyx_t_3 = PyInt_FromLong(((struct __pyx_vtabstruct_4cdec_2sa_3_sa_Alignment *)__pyx_cur_scope->__pyx_outer_scope->__pyx_v_self->alignment->__pyx_vtab)->link(__pyx_cur_scope->__pyx_outer_scope->__pyx_v_self->alignment, __pyx_t_8, __pyx_t_9)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2124; __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[8]; __pyx_lineno = 2140; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+    __pyx_t_8 = __Pyx_PyInt_AsInt(__pyx_cur_scope->__pyx_v_i); if (unlikely((__pyx_t_8 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2140; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_9 = __Pyx_PyInt_AsInt(__pyx_cur_scope->__pyx_v_j); if (unlikely((__pyx_t_9 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2140; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyInt_FromLong(((struct __pyx_vtabstruct_4cdec_2sa_3_sa_Alignment *)__pyx_cur_scope->__pyx_outer_scope->__pyx_v_self->alignment->__pyx_vtab)->link(__pyx_cur_scope->__pyx_outer_scope->__pyx_v_self->alignment, __pyx_t_8, __pyx_t_9)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2140; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     __pyx_r = __pyx_t_3;
     __pyx_t_3 = 0;
@@ -63454,7 +64109,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_9form_rule_4g
     __pyx_cur_scope->__pyx_t_0 = 0;
     __Pyx_XGOTREF(__pyx_t_1);
     __pyx_t_2 = __pyx_cur_scope->__pyx_t_1;
-    if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2124; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2140; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   }
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   PyErr_SetNone(PyExc_StopIteration);
@@ -63474,7 +64129,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_9form_rule_4g
   return NULL;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2063
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2079
  * 
  *     # Create a rule from source, target, non-terminals, and alignments
  *     def form_rule(self, f_i, e_i, f_span, e_span, nt, al):             # <<<<<<<<<<<<<<
@@ -63531,52 +64186,52 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_27form_rule(s
   __Pyx_INCREF((PyObject *)__pyx_cur_scope->__pyx_v_self);
   __Pyx_GIVEREF((PyObject *)__pyx_cur_scope->__pyx_v_self);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2066
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2082
  * 
  *         # Substitute in non-terminals
  *         nt_inv = sorted(nt, cmp=lambda x, y: cmp(x[3], y[3]))             # <<<<<<<<<<<<<<
  *         f_sym = list(f_span[:])
  *         off = f_i
  */
-  __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2066; __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 = 2082; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_INCREF(__pyx_v_nt);
   PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_v_nt);
   __Pyx_GIVEREF(__pyx_v_nt);
-  __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2066; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2082; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_2));
-  __pyx_t_3 = __Pyx_CyFunction_NewEx(&__pyx_mdef_4cdec_2sa_3_sa_23HieroCachingRuleFactory_9form_rule_lambda7, 0, __pyx_n_s_147, NULL, __pyx_n_s_102, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2066; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = __Pyx_CyFunction_NewEx(&__pyx_mdef_4cdec_2sa_3_sa_23HieroCachingRuleFactory_9form_rule_lambda8, 0, __pyx_n_s_147, NULL, __pyx_n_s_102, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2082; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
-  if (PyDict_SetItem(__pyx_t_2, ((PyObject *)__pyx_n_s__cmp), __pyx_t_3) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2066; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_2, ((PyObject *)__pyx_n_s__cmp), __pyx_t_3) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2082; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  __pyx_t_3 = PyObject_Call(__pyx_builtin_sorted, ((PyObject *)__pyx_t_1), ((PyObject *)__pyx_t_2)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2066; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_Call(__pyx_builtin_sorted, ((PyObject *)__pyx_t_1), ((PyObject *)__pyx_t_2)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2082; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
   __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
   __pyx_v_nt_inv = __pyx_t_3;
   __pyx_t_3 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2067
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2083
  *         # Substitute in non-terminals
  *         nt_inv = sorted(nt, cmp=lambda x, y: cmp(x[3], y[3]))
  *         f_sym = list(f_span[:])             # <<<<<<<<<<<<<<
  *         off = f_i
  *         for next_nt in nt:
  */
-  __pyx_t_3 = __Pyx_PyObject_GetSlice(__pyx_v_f_span, 0, 0, NULL, NULL, &__pyx_k_slice_148, 0, 0, 1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2067; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = __Pyx_PyObject_GetSlice(__pyx_v_f_span, 0, 0, NULL, NULL, &__pyx_k_slice_148, 0, 0, 1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2083; __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 = 2067; __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 = 2083; __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*)(&PyList_Type))), ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2067; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)(&PyList_Type))), ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2083; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
   __pyx_v_f_sym = ((PyObject*)__pyx_t_3);
   __pyx_t_3 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2068
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2084
  *         nt_inv = sorted(nt, cmp=lambda x, y: cmp(x[3], y[3]))
  *         f_sym = list(f_span[:])
  *         off = f_i             # <<<<<<<<<<<<<<
@@ -63586,7 +64241,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_27form_rule(s
   __Pyx_INCREF(__pyx_v_f_i);
   __pyx_v_off = __pyx_v_f_i;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2069
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2085
  *         f_sym = list(f_span[:])
  *         off = f_i
  *         for next_nt in nt:             # <<<<<<<<<<<<<<
@@ -63597,7 +64252,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_27form_rule(s
     __pyx_t_3 = __pyx_v_nt; __Pyx_INCREF(__pyx_t_3); __pyx_t_4 = 0;
     __pyx_t_5 = NULL;
   } else {
-    __pyx_t_4 = -1; __pyx_t_3 = PyObject_GetIter(__pyx_v_nt); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2069; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = -1; __pyx_t_3 = PyObject_GetIter(__pyx_v_nt); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2085; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     __pyx_t_5 = Py_TYPE(__pyx_t_3)->tp_iternext;
   }
@@ -63605,23 +64260,23 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_27form_rule(s
     if (!__pyx_t_5 && PyList_CheckExact(__pyx_t_3)) {
       if (__pyx_t_4 >= PyList_GET_SIZE(__pyx_t_3)) break;
       #if CYTHON_COMPILING_IN_CPYTHON
-      __pyx_t_2 = PyList_GET_ITEM(__pyx_t_3, __pyx_t_4); __Pyx_INCREF(__pyx_t_2); __pyx_t_4++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2069; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyList_GET_ITEM(__pyx_t_3, __pyx_t_4); __Pyx_INCREF(__pyx_t_2); __pyx_t_4++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2085; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #else
-      __pyx_t_2 = PySequence_ITEM(__pyx_t_3, __pyx_t_4); __pyx_t_4++; if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2069; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PySequence_ITEM(__pyx_t_3, __pyx_t_4); __pyx_t_4++; if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2085; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #endif
     } else if (!__pyx_t_5 && PyTuple_CheckExact(__pyx_t_3)) {
       if (__pyx_t_4 >= PyTuple_GET_SIZE(__pyx_t_3)) break;
       #if CYTHON_COMPILING_IN_CPYTHON
-      __pyx_t_2 = PyTuple_GET_ITEM(__pyx_t_3, __pyx_t_4); __Pyx_INCREF(__pyx_t_2); __pyx_t_4++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2069; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyTuple_GET_ITEM(__pyx_t_3, __pyx_t_4); __Pyx_INCREF(__pyx_t_2); __pyx_t_4++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2085; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #else
-      __pyx_t_2 = PySequence_ITEM(__pyx_t_3, __pyx_t_4); __pyx_t_4++; if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2069; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PySequence_ITEM(__pyx_t_3, __pyx_t_4); __pyx_t_4++; if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2085; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #endif
     } else {
       __pyx_t_2 = __pyx_t_5(__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 = 2069; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2085; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         }
         break;
       }
@@ -63630,28 +64285,28 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_27form_rule(s
     __Pyx_XDECREF_SET(__pyx_v_next_nt, __pyx_t_2);
     __pyx_t_2 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2070
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2086
  *         off = f_i
  *         for next_nt in nt:
  *             nt_len = (next_nt[2] - next_nt[1]) + 1             # <<<<<<<<<<<<<<
  *             i = 0
  *             while i < nt_len:
  */
-    __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_next_nt, 2, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2070; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_next_nt, 2, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2086; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_next_nt, 1, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2070; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_next_nt, 1, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2086; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_6 = PyNumber_Subtract(__pyx_t_2, __pyx_t_1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2070; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = PyNumber_Subtract(__pyx_t_2, __pyx_t_1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2086; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-    __pyx_t_1 = PyNumber_Add(__pyx_t_6, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2070; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyNumber_Add(__pyx_t_6, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2086; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
     __Pyx_XDECREF_SET(__pyx_v_nt_len, __pyx_t_1);
     __pyx_t_1 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2071
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2087
  *         for next_nt in nt:
  *             nt_len = (next_nt[2] - next_nt[1]) + 1
  *             i = 0             # <<<<<<<<<<<<<<
@@ -63661,7 +64316,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_27form_rule(s
     __Pyx_INCREF(__pyx_int_0);
     __Pyx_XDECREF_SET(__pyx_v_i, __pyx_int_0);
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2072
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2088
  *             nt_len = (next_nt[2] - next_nt[1]) + 1
  *             i = 0
  *             while i < nt_len:             # <<<<<<<<<<<<<<
@@ -63669,82 +64324,82 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_27form_rule(s
  *                 i += 1
  */
     while (1) {
-      __pyx_t_1 = PyObject_RichCompare(__pyx_v_i, __pyx_v_nt_len, Py_LT); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2072; __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 = 2072; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyObject_RichCompare(__pyx_v_i, __pyx_v_nt_len, Py_LT); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2088; __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 = 2088; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
       if (!__pyx_t_7) break;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2073
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2089
  *             i = 0
  *             while i < nt_len:
  *                 f_sym.pop(next_nt[1] - off)             # <<<<<<<<<<<<<<
  *                 i += 1
  *             f_sym.insert(next_nt[1] - off, sym_setindex(self.category, next_nt[0]))
  */
-      __pyx_t_1 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_f_sym), __pyx_n_s__pop); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2073; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_f_sym), __pyx_n_s__pop); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2089; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
-      __pyx_t_6 = __Pyx_GetItemInt(__pyx_v_next_nt, 1, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_6) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2073; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = __Pyx_GetItemInt(__pyx_v_next_nt, 1, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_6) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2089; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_6);
-      __pyx_t_2 = PyNumber_Subtract(__pyx_t_6, __pyx_v_off); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2073; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyNumber_Subtract(__pyx_t_6, __pyx_v_off); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2089; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-      __pyx_t_6 = PyTuple_New(1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2073; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = PyTuple_New(1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2089; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_6);
       PyTuple_SET_ITEM(__pyx_t_6, 0, __pyx_t_2);
       __Pyx_GIVEREF(__pyx_t_2);
       __pyx_t_2 = 0;
-      __pyx_t_2 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_6), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2073; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_6), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2089; __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_6)); __pyx_t_6 = 0;
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2074
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2090
  *             while i < nt_len:
  *                 f_sym.pop(next_nt[1] - off)
  *                 i += 1             # <<<<<<<<<<<<<<
  *             f_sym.insert(next_nt[1] - off, sym_setindex(self.category, next_nt[0]))
  *             off += (nt_len - 1)
  */
-      __pyx_t_2 = PyNumber_InPlaceAdd(__pyx_v_i, __pyx_int_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2074; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyNumber_InPlaceAdd(__pyx_v_i, __pyx_int_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2090; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF_SET(__pyx_v_i, __pyx_t_2);
       __pyx_t_2 = 0;
     }
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2075
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2091
  *                 f_sym.pop(next_nt[1] - off)
  *                 i += 1
  *             f_sym.insert(next_nt[1] - off, sym_setindex(self.category, next_nt[0]))             # <<<<<<<<<<<<<<
  *             off += (nt_len - 1)
  *         e_sym = list(e_span[:])
  */
-    __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_next_nt, 1, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2075; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_next_nt, 1, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2091; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_6 = PyNumber_Subtract(__pyx_t_2, __pyx_v_off); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2075; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = PyNumber_Subtract(__pyx_t_2, __pyx_v_off); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2091; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __pyx_t_8 = __Pyx_PyIndex_AsSsize_t(__pyx_t_6); if (unlikely((__pyx_t_8 == (Py_ssize_t)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2075; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_8 = __Pyx_PyIndex_AsSsize_t(__pyx_t_6); if (unlikely((__pyx_t_8 == (Py_ssize_t)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2091; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-    __pyx_t_6 = __Pyx_GetItemInt(__pyx_v_next_nt, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_6) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2075; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = __Pyx_GetItemInt(__pyx_v_next_nt, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_6) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2091; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
-    __pyx_t_9 = __Pyx_PyInt_AsInt(__pyx_t_6); if (unlikely((__pyx_t_9 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2075; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_9 = __Pyx_PyInt_AsInt(__pyx_t_6); if (unlikely((__pyx_t_9 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2091; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-    __pyx_t_6 = PyInt_FromLong(__pyx_f_4cdec_2sa_3_sa_sym_setindex(__pyx_cur_scope->__pyx_v_self->category, __pyx_t_9)); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2075; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = PyInt_FromLong(__pyx_f_4cdec_2sa_3_sa_sym_setindex(__pyx_cur_scope->__pyx_v_self->category, __pyx_t_9)); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2091; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
-    __pyx_t_10 = PyList_Insert(__pyx_v_f_sym, __pyx_t_8, __pyx_t_6); if (unlikely(__pyx_t_10 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2075; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_10 = PyList_Insert(__pyx_v_f_sym, __pyx_t_8, __pyx_t_6); if (unlikely(__pyx_t_10 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2091; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2076
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2092
  *                 i += 1
  *             f_sym.insert(next_nt[1] - off, sym_setindex(self.category, next_nt[0]))
  *             off += (nt_len - 1)             # <<<<<<<<<<<<<<
  *         e_sym = list(e_span[:])
  *         off = e_i
  */
-    __pyx_t_6 = PyNumber_Subtract(__pyx_v_nt_len, __pyx_int_1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2076; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = PyNumber_Subtract(__pyx_v_nt_len, __pyx_int_1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2092; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
-    __pyx_t_2 = PyNumber_InPlaceAdd(__pyx_v_off, __pyx_t_6); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2076; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyNumber_InPlaceAdd(__pyx_v_off, __pyx_t_6); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2092; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
     __Pyx_DECREF_SET(__pyx_v_off, __pyx_t_2);
@@ -63752,27 +64407,27 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_27form_rule(s
   }
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2077
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2093
  *             f_sym.insert(next_nt[1] - off, sym_setindex(self.category, next_nt[0]))
  *             off += (nt_len - 1)
  *         e_sym = list(e_span[:])             # <<<<<<<<<<<<<<
  *         off = e_i
  *         for next_nt in nt_inv:
  */
-  __pyx_t_3 = __Pyx_PyObject_GetSlice(__pyx_v_e_span, 0, 0, NULL, NULL, &__pyx_k_slice_149, 0, 0, 1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2077; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = __Pyx_PyObject_GetSlice(__pyx_v_e_span, 0, 0, NULL, NULL, &__pyx_k_slice_149, 0, 0, 1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2093; __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 = 2077; __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 = 2093; __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*)(&PyList_Type))), ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2077; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)(&PyList_Type))), ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2093; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
   __pyx_v_e_sym = ((PyObject*)__pyx_t_3);
   __pyx_t_3 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2078
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2094
  *             off += (nt_len - 1)
  *         e_sym = list(e_span[:])
  *         off = e_i             # <<<<<<<<<<<<<<
@@ -63782,7 +64437,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_27form_rule(s
   __Pyx_INCREF(__pyx_v_e_i);
   __Pyx_DECREF_SET(__pyx_v_off, __pyx_v_e_i);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2079
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2095
  *         e_sym = list(e_span[:])
  *         off = e_i
  *         for next_nt in nt_inv:             # <<<<<<<<<<<<<<
@@ -63793,7 +64448,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_27form_rule(s
     __pyx_t_3 = __pyx_v_nt_inv; __Pyx_INCREF(__pyx_t_3); __pyx_t_4 = 0;
     __pyx_t_5 = NULL;
   } else {
-    __pyx_t_4 = -1; __pyx_t_3 = PyObject_GetIter(__pyx_v_nt_inv); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2079; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = -1; __pyx_t_3 = PyObject_GetIter(__pyx_v_nt_inv); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2095; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     __pyx_t_5 = Py_TYPE(__pyx_t_3)->tp_iternext;
   }
@@ -63801,23 +64456,23 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_27form_rule(s
     if (!__pyx_t_5 && PyList_CheckExact(__pyx_t_3)) {
       if (__pyx_t_4 >= PyList_GET_SIZE(__pyx_t_3)) break;
       #if CYTHON_COMPILING_IN_CPYTHON
-      __pyx_t_2 = PyList_GET_ITEM(__pyx_t_3, __pyx_t_4); __Pyx_INCREF(__pyx_t_2); __pyx_t_4++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2079; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyList_GET_ITEM(__pyx_t_3, __pyx_t_4); __Pyx_INCREF(__pyx_t_2); __pyx_t_4++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2095; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #else
-      __pyx_t_2 = PySequence_ITEM(__pyx_t_3, __pyx_t_4); __pyx_t_4++; if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2079; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PySequence_ITEM(__pyx_t_3, __pyx_t_4); __pyx_t_4++; if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2095; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #endif
     } else if (!__pyx_t_5 && PyTuple_CheckExact(__pyx_t_3)) {
       if (__pyx_t_4 >= PyTuple_GET_SIZE(__pyx_t_3)) break;
       #if CYTHON_COMPILING_IN_CPYTHON
-      __pyx_t_2 = PyTuple_GET_ITEM(__pyx_t_3, __pyx_t_4); __Pyx_INCREF(__pyx_t_2); __pyx_t_4++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2079; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyTuple_GET_ITEM(__pyx_t_3, __pyx_t_4); __Pyx_INCREF(__pyx_t_2); __pyx_t_4++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2095; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #else
-      __pyx_t_2 = PySequence_ITEM(__pyx_t_3, __pyx_t_4); __pyx_t_4++; if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2079; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PySequence_ITEM(__pyx_t_3, __pyx_t_4); __pyx_t_4++; if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2095; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #endif
     } else {
       __pyx_t_2 = __pyx_t_5(__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 = 2079; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2095; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         }
         break;
       }
@@ -63826,28 +64481,28 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_27form_rule(s
     __Pyx_XDECREF_SET(__pyx_v_next_nt, __pyx_t_2);
     __pyx_t_2 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2080
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2096
  *         off = e_i
  *         for next_nt in nt_inv:
  *             nt_len = (next_nt[4] - next_nt[3]) + 1             # <<<<<<<<<<<<<<
  *             i = 0
  *             while i < nt_len:
  */
-    __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_next_nt, 4, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2080; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_next_nt, 4, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2096; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_6 = __Pyx_GetItemInt(__pyx_v_next_nt, 3, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_6) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2080; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = __Pyx_GetItemInt(__pyx_v_next_nt, 3, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_6) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2096; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
-    __pyx_t_1 = PyNumber_Subtract(__pyx_t_2, __pyx_t_6); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2080; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyNumber_Subtract(__pyx_t_2, __pyx_t_6); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2096; __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_6); __pyx_t_6 = 0;
-    __pyx_t_6 = PyNumber_Add(__pyx_t_1, __pyx_int_1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2080; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = PyNumber_Add(__pyx_t_1, __pyx_int_1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2096; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     __Pyx_XDECREF_SET(__pyx_v_nt_len, __pyx_t_6);
     __pyx_t_6 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2081
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2097
  *         for next_nt in nt_inv:
  *             nt_len = (next_nt[4] - next_nt[3]) + 1
  *             i = 0             # <<<<<<<<<<<<<<
@@ -63857,7 +64512,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_27form_rule(s
     __Pyx_INCREF(__pyx_int_0);
     __Pyx_XDECREF_SET(__pyx_v_i, __pyx_int_0);
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2082
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2098
  *             nt_len = (next_nt[4] - next_nt[3]) + 1
  *             i = 0
  *             while i < nt_len:             # <<<<<<<<<<<<<<
@@ -63865,82 +64520,82 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_27form_rule(s
  *                 i += 1
  */
     while (1) {
-      __pyx_t_6 = PyObject_RichCompare(__pyx_v_i, __pyx_v_nt_len, Py_LT); __Pyx_XGOTREF(__pyx_t_6); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2082; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __pyx_t_7 = __Pyx_PyObject_IsTrue(__pyx_t_6); if (unlikely(__pyx_t_7 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2082; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = PyObject_RichCompare(__pyx_v_i, __pyx_v_nt_len, Py_LT); __Pyx_XGOTREF(__pyx_t_6); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2098; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_7 = __Pyx_PyObject_IsTrue(__pyx_t_6); if (unlikely(__pyx_t_7 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2098; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
       if (!__pyx_t_7) break;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2083
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2099
  *             i = 0
  *             while i < nt_len:
  *                 e_sym.pop(next_nt[3] - off)             # <<<<<<<<<<<<<<
  *                 i += 1
  *             e_sym.insert(next_nt[3] - off, sym_setindex(self.category, next_nt[0]))
  */
-      __pyx_t_6 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_e_sym), __pyx_n_s__pop); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2083; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_e_sym), __pyx_n_s__pop); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2099; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_6);
-      __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_next_nt, 3, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2083; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_next_nt, 3, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2099; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
-      __pyx_t_2 = PyNumber_Subtract(__pyx_t_1, __pyx_v_off); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2083; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyNumber_Subtract(__pyx_t_1, __pyx_v_off); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2099; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__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 = 2083; __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 = 2099; __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);
       __pyx_t_2 = 0;
-      __pyx_t_2 = PyObject_Call(__pyx_t_6, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2083; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyObject_Call(__pyx_t_6, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2099; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
       __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2084
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2100
  *             while i < nt_len:
  *                 e_sym.pop(next_nt[3] - off)
  *                 i += 1             # <<<<<<<<<<<<<<
  *             e_sym.insert(next_nt[3] - off, sym_setindex(self.category, next_nt[0]))
  *             off += (nt_len - 1)
  */
-      __pyx_t_2 = PyNumber_InPlaceAdd(__pyx_v_i, __pyx_int_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2084; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyNumber_InPlaceAdd(__pyx_v_i, __pyx_int_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2100; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF_SET(__pyx_v_i, __pyx_t_2);
       __pyx_t_2 = 0;
     }
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2085
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2101
  *                 e_sym.pop(next_nt[3] - off)
  *                 i += 1
  *             e_sym.insert(next_nt[3] - off, sym_setindex(self.category, next_nt[0]))             # <<<<<<<<<<<<<<
  *             off += (nt_len - 1)
  * 
  */
-    __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_next_nt, 3, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2085; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_next_nt, 3, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2101; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_1 = PyNumber_Subtract(__pyx_t_2, __pyx_v_off); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2085; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyNumber_Subtract(__pyx_t_2, __pyx_v_off); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2101; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __pyx_t_8 = __Pyx_PyIndex_AsSsize_t(__pyx_t_1); if (unlikely((__pyx_t_8 == (Py_ssize_t)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2085; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_8 = __Pyx_PyIndex_AsSsize_t(__pyx_t_1); if (unlikely((__pyx_t_8 == (Py_ssize_t)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2101; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-    __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_next_nt, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2085; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_next_nt, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2101; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_9 = __Pyx_PyInt_AsInt(__pyx_t_1); if (unlikely((__pyx_t_9 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2085; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_9 = __Pyx_PyInt_AsInt(__pyx_t_1); if (unlikely((__pyx_t_9 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2101; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-    __pyx_t_1 = PyInt_FromLong(__pyx_f_4cdec_2sa_3_sa_sym_setindex(__pyx_cur_scope->__pyx_v_self->category, __pyx_t_9)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2085; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyInt_FromLong(__pyx_f_4cdec_2sa_3_sa_sym_setindex(__pyx_cur_scope->__pyx_v_self->category, __pyx_t_9)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2101; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_10 = PyList_Insert(__pyx_v_e_sym, __pyx_t_8, __pyx_t_1); if (unlikely(__pyx_t_10 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2085; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_10 = PyList_Insert(__pyx_v_e_sym, __pyx_t_8, __pyx_t_1); if (unlikely(__pyx_t_10 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2101; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2086
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2102
  *                 i += 1
  *             e_sym.insert(next_nt[3] - off, sym_setindex(self.category, next_nt[0]))
  *             off += (nt_len - 1)             # <<<<<<<<<<<<<<
  * 
  *         # Adjusting alignment links takes some doing
  */
-    __pyx_t_1 = PyNumber_Subtract(__pyx_v_nt_len, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2086; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyNumber_Subtract(__pyx_v_nt_len, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2102; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_2 = PyNumber_InPlaceAdd(__pyx_v_off, __pyx_t_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2086; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyNumber_InPlaceAdd(__pyx_v_off, __pyx_t_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2102; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     __Pyx_DECREF_SET(__pyx_v_off, __pyx_t_2);
@@ -63948,20 +64603,20 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_27form_rule(s
   }
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2089
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2105
  * 
  *         # Adjusting alignment links takes some doing
  *         links = [list(link) for sub in al for link in sub]             # <<<<<<<<<<<<<<
  *         links_inv = sorted(links, cmp=lambda x, y: cmp(x[1], y[1]))
  *         links_len = len(links)
  */
-  __pyx_t_3 = PyList_New(0); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2089; __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 = 2105; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   if (PyList_CheckExact(__pyx_v_al) || PyTuple_CheckExact(__pyx_v_al)) {
     __pyx_t_2 = __pyx_v_al; __Pyx_INCREF(__pyx_t_2); __pyx_t_4 = 0;
     __pyx_t_5 = NULL;
   } else {
-    __pyx_t_4 = -1; __pyx_t_2 = PyObject_GetIter(__pyx_v_al); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2089; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = -1; __pyx_t_2 = PyObject_GetIter(__pyx_v_al); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2105; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __pyx_t_5 = Py_TYPE(__pyx_t_2)->tp_iternext;
   }
@@ -63969,23 +64624,23 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_27form_rule(s
     if (!__pyx_t_5 && PyList_CheckExact(__pyx_t_2)) {
       if (__pyx_t_4 >= PyList_GET_SIZE(__pyx_t_2)) break;
       #if CYTHON_COMPILING_IN_CPYTHON
-      __pyx_t_1 = PyList_GET_ITEM(__pyx_t_2, __pyx_t_4); __Pyx_INCREF(__pyx_t_1); __pyx_t_4++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2089; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyList_GET_ITEM(__pyx_t_2, __pyx_t_4); __Pyx_INCREF(__pyx_t_1); __pyx_t_4++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2105; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #else
-      __pyx_t_1 = PySequence_ITEM(__pyx_t_2, __pyx_t_4); __pyx_t_4++; if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2089; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PySequence_ITEM(__pyx_t_2, __pyx_t_4); __pyx_t_4++; if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2105; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #endif
     } else if (!__pyx_t_5 && PyTuple_CheckExact(__pyx_t_2)) {
       if (__pyx_t_4 >= PyTuple_GET_SIZE(__pyx_t_2)) break;
       #if CYTHON_COMPILING_IN_CPYTHON
-      __pyx_t_1 = PyTuple_GET_ITEM(__pyx_t_2, __pyx_t_4); __Pyx_INCREF(__pyx_t_1); __pyx_t_4++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2089; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyTuple_GET_ITEM(__pyx_t_2, __pyx_t_4); __Pyx_INCREF(__pyx_t_1); __pyx_t_4++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2105; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #else
-      __pyx_t_1 = PySequence_ITEM(__pyx_t_2, __pyx_t_4); __pyx_t_4++; if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2089; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PySequence_ITEM(__pyx_t_2, __pyx_t_4); __pyx_t_4++; if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2105; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #endif
     } else {
       __pyx_t_1 = __pyx_t_5(__pyx_t_2);
       if (unlikely(!__pyx_t_1)) {
         if (PyErr_Occurred()) {
           if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-          else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2089; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2105; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         }
         break;
       }
@@ -63997,7 +64652,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_27form_rule(s
       __pyx_t_1 = __pyx_v_sub; __Pyx_INCREF(__pyx_t_1); __pyx_t_8 = 0;
       __pyx_t_11 = NULL;
     } else {
-      __pyx_t_8 = -1; __pyx_t_1 = PyObject_GetIter(__pyx_v_sub); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2089; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = -1; __pyx_t_1 = PyObject_GetIter(__pyx_v_sub); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2105; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
       __pyx_t_11 = Py_TYPE(__pyx_t_1)->tp_iternext;
     }
@@ -64005,23 +64660,23 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_27form_rule(s
       if (!__pyx_t_11 && PyList_CheckExact(__pyx_t_1)) {
         if (__pyx_t_8 >= PyList_GET_SIZE(__pyx_t_1)) break;
         #if CYTHON_COMPILING_IN_CPYTHON
-        __pyx_t_6 = PyList_GET_ITEM(__pyx_t_1, __pyx_t_8); __Pyx_INCREF(__pyx_t_6); __pyx_t_8++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2089; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_6 = PyList_GET_ITEM(__pyx_t_1, __pyx_t_8); __Pyx_INCREF(__pyx_t_6); __pyx_t_8++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2105; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         #else
-        __pyx_t_6 = PySequence_ITEM(__pyx_t_1, __pyx_t_8); __pyx_t_8++; if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2089; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_6 = PySequence_ITEM(__pyx_t_1, __pyx_t_8); __pyx_t_8++; if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2105; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         #endif
       } else if (!__pyx_t_11 && PyTuple_CheckExact(__pyx_t_1)) {
         if (__pyx_t_8 >= PyTuple_GET_SIZE(__pyx_t_1)) break;
         #if CYTHON_COMPILING_IN_CPYTHON
-        __pyx_t_6 = PyTuple_GET_ITEM(__pyx_t_1, __pyx_t_8); __Pyx_INCREF(__pyx_t_6); __pyx_t_8++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2089; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_6 = PyTuple_GET_ITEM(__pyx_t_1, __pyx_t_8); __Pyx_INCREF(__pyx_t_6); __pyx_t_8++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2105; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         #else
-        __pyx_t_6 = PySequence_ITEM(__pyx_t_1, __pyx_t_8); __pyx_t_8++; if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2089; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_6 = PySequence_ITEM(__pyx_t_1, __pyx_t_8); __pyx_t_8++; if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2105; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         #endif
       } else {
         __pyx_t_6 = __pyx_t_11(__pyx_t_1);
         if (unlikely(!__pyx_t_6)) {
           if (PyErr_Occurred()) {
             if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) PyErr_Clear();
-            else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2089; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+            else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2105; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           }
           break;
         }
@@ -64029,15 +64684,15 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_27form_rule(s
       }
       __Pyx_XDECREF_SET(__pyx_v_link, __pyx_t_6);
       __pyx_t_6 = 0;
-      __pyx_t_6 = PyTuple_New(1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2089; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = PyTuple_New(1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2105; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_6);
       __Pyx_INCREF(__pyx_v_link);
       PyTuple_SET_ITEM(__pyx_t_6, 0, __pyx_v_link);
       __Pyx_GIVEREF(__pyx_v_link);
-      __pyx_t_12 = PyObject_Call(((PyObject *)((PyObject*)(&PyList_Type))), ((PyObject *)__pyx_t_6), NULL); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2089; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_12 = PyObject_Call(((PyObject *)((PyObject*)(&PyList_Type))), ((PyObject *)__pyx_t_6), NULL); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2105; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_12);
       __Pyx_DECREF(((PyObject *)__pyx_t_6)); __pyx_t_6 = 0;
-      if (unlikely(__Pyx_ListComp_Append(__pyx_t_3, (PyObject*)__pyx_t_12))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2089; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      if (unlikely(__Pyx_ListComp_Append(__pyx_t_3, (PyObject*)__pyx_t_12))) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2105; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
     }
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
@@ -64047,32 +64702,32 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_27form_rule(s
   __pyx_cur_scope->__pyx_v_links = ((PyObject*)__pyx_t_3);
   __pyx_t_3 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2090
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2106
  *         # Adjusting alignment links takes some doing
  *         links = [list(link) for sub in al for link in sub]
  *         links_inv = sorted(links, cmp=lambda x, y: cmp(x[1], y[1]))             # <<<<<<<<<<<<<<
  *         links_len = len(links)
  *         nt_len = len(nt)
  */
-  __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2090; __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 = 2106; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_INCREF(((PyObject *)__pyx_cur_scope->__pyx_v_links));
   PyTuple_SET_ITEM(__pyx_t_3, 0, ((PyObject *)__pyx_cur_scope->__pyx_v_links));
   __Pyx_GIVEREF(((PyObject *)__pyx_cur_scope->__pyx_v_links));
-  __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2090; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2106; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_2));
-  __pyx_t_1 = __Pyx_CyFunction_NewEx(&__pyx_mdef_4cdec_2sa_3_sa_23HieroCachingRuleFactory_9form_rule_1lambda8, 0, __pyx_n_s_147, NULL, __pyx_n_s_102, NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2090; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_CyFunction_NewEx(&__pyx_mdef_4cdec_2sa_3_sa_23HieroCachingRuleFactory_9form_rule_1lambda9, 0, __pyx_n_s_147, NULL, __pyx_n_s_102, NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2106; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  if (PyDict_SetItem(__pyx_t_2, ((PyObject *)__pyx_n_s__cmp), __pyx_t_1) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2090; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_2, ((PyObject *)__pyx_n_s__cmp), __pyx_t_1) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2106; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_1 = PyObject_Call(__pyx_builtin_sorted, ((PyObject *)__pyx_t_3), ((PyObject *)__pyx_t_2)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2090; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Call(__pyx_builtin_sorted, ((PyObject *)__pyx_t_3), ((PyObject *)__pyx_t_2)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2106; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
   __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
   __pyx_v_links_inv = __pyx_t_1;
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2091
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2107
  *         links = [list(link) for sub in al for link in sub]
  *         links_inv = sorted(links, cmp=lambda x, y: cmp(x[1], y[1]))
  *         links_len = len(links)             # <<<<<<<<<<<<<<
@@ -64083,29 +64738,29 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_27form_rule(s
   __Pyx_INCREF(__pyx_t_1);
   if (unlikely(__pyx_t_1 == Py_None)) {
     PyErr_SetString(PyExc_TypeError, "object of type 'NoneType' has no len()");
-    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2091; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2107; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   }
-  __pyx_t_4 = PyList_GET_SIZE(__pyx_t_1); if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2091; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_4 = PyList_GET_SIZE(__pyx_t_1); if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2107; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_1 = PyInt_FromSsize_t(__pyx_t_4); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2091; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyInt_FromSsize_t(__pyx_t_4); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2107; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_v_links_len = __pyx_t_1;
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2092
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2108
  *         links_inv = sorted(links, cmp=lambda x, y: cmp(x[1], y[1]))
  *         links_len = len(links)
  *         nt_len = len(nt)             # <<<<<<<<<<<<<<
  *         nt_i = 0
  *         off = f_i
  */
-  __pyx_t_4 = PyObject_Length(__pyx_v_nt); if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2092; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_t_1 = PyInt_FromSsize_t(__pyx_t_4); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2092; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_4 = PyObject_Length(__pyx_v_nt); if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2108; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyInt_FromSsize_t(__pyx_t_4); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2108; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_XDECREF_SET(__pyx_v_nt_len, __pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2093
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2109
  *         links_len = len(links)
  *         nt_len = len(nt)
  *         nt_i = 0             # <<<<<<<<<<<<<<
@@ -64115,7 +64770,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_27form_rule(s
   __Pyx_INCREF(__pyx_int_0);
   __pyx_v_nt_i = __pyx_int_0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2094
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2110
  *         nt_len = len(nt)
  *         nt_i = 0
  *         off = f_i             # <<<<<<<<<<<<<<
@@ -64125,7 +64780,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_27form_rule(s
   __Pyx_INCREF(__pyx_v_f_i);
   __Pyx_DECREF_SET(__pyx_v_off, __pyx_v_f_i);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2095
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2111
  *         nt_i = 0
  *         off = f_i
  *         i = 0             # <<<<<<<<<<<<<<
@@ -64135,7 +64790,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_27form_rule(s
   __Pyx_INCREF(__pyx_int_0);
   __Pyx_XDECREF_SET(__pyx_v_i, __pyx_int_0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2096
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2112
  *         off = f_i
  *         i = 0
  *         while i < links_len:             # <<<<<<<<<<<<<<
@@ -64143,12 +64798,12 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_27form_rule(s
  *                 off += (nt[nt_i][2] - nt[nt_i][1])
  */
   while (1) {
-    __pyx_t_1 = PyObject_RichCompare(__pyx_v_i, __pyx_v_links_len, Py_LT); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2096; __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 = 2096; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyObject_RichCompare(__pyx_v_i, __pyx_v_links_len, Py_LT); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2112; __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 = 2112; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     if (!__pyx_t_7) break;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2097
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2113
  *         i = 0
  *         while i < links_len:
  *             while nt_i < nt_len and links[i][0] > nt[nt_i][1]:             # <<<<<<<<<<<<<<
@@ -64156,24 +64811,24 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_27form_rule(s
  *                 nt_i += 1
  */
     while (1) {
-      __pyx_t_1 = PyObject_RichCompare(__pyx_v_nt_i, __pyx_v_nt_len, Py_LT); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2097; __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 = 2097; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyObject_RichCompare(__pyx_v_nt_i, __pyx_v_nt_len, Py_LT); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2113; __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 = 2113; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
       if (__pyx_t_7) {
-        __pyx_t_1 = PyObject_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_links), __pyx_v_i); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2097; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_1 = PyObject_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_links), __pyx_v_i); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2113; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_1);
-        __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_1, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2097; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_1, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2113; __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_GetItem(__pyx_v_nt, __pyx_v_nt_i); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2097; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_1 = PyObject_GetItem(__pyx_v_nt, __pyx_v_nt_i); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2113; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_1);
-        __pyx_t_3 = __Pyx_GetItemInt(__pyx_t_1, 1, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2097; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_3 = __Pyx_GetItemInt(__pyx_t_1, 1, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2113; __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_RichCompare(__pyx_t_2, __pyx_t_3, Py_GT); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2097; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_1 = PyObject_RichCompare(__pyx_t_2, __pyx_t_3, Py_GT); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2113; __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_t_13 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_13 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2097; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_13 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_13 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2113; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
         __pyx_t_14 = __pyx_t_13;
       } else {
@@ -64181,79 +64836,79 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_27form_rule(s
       }
       if (!__pyx_t_14) break;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2098
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2114
  *         while i < links_len:
  *             while nt_i < nt_len and links[i][0] > nt[nt_i][1]:
  *                 off += (nt[nt_i][2] - nt[nt_i][1])             # <<<<<<<<<<<<<<
  *                 nt_i += 1
  *             links[i][0] -= off
  */
-      __pyx_t_1 = PyObject_GetItem(__pyx_v_nt, __pyx_v_nt_i); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2098; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyObject_GetItem(__pyx_v_nt, __pyx_v_nt_i); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2114; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
-      __pyx_t_3 = __Pyx_GetItemInt(__pyx_t_1, 2, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2098; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = __Pyx_GetItemInt(__pyx_t_1, 2, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2114; __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_GetItem(__pyx_v_nt, __pyx_v_nt_i); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2098; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyObject_GetItem(__pyx_v_nt, __pyx_v_nt_i); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2114; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
-      __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_1, 1, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2098; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_1, 1, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2114; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-      __pyx_t_1 = PyNumber_Subtract(__pyx_t_3, __pyx_t_2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2098; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyNumber_Subtract(__pyx_t_3, __pyx_t_2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2114; __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_2); __pyx_t_2 = 0;
-      __pyx_t_2 = PyNumber_InPlaceAdd(__pyx_v_off, __pyx_t_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2098; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyNumber_InPlaceAdd(__pyx_v_off, __pyx_t_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2114; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
       __Pyx_DECREF_SET(__pyx_v_off, __pyx_t_2);
       __pyx_t_2 = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2099
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2115
  *             while nt_i < nt_len and links[i][0] > nt[nt_i][1]:
  *                 off += (nt[nt_i][2] - nt[nt_i][1])
  *                 nt_i += 1             # <<<<<<<<<<<<<<
  *             links[i][0] -= off
  *             i += 1
  */
-      __pyx_t_2 = PyNumber_InPlaceAdd(__pyx_v_nt_i, __pyx_int_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2099; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyNumber_InPlaceAdd(__pyx_v_nt_i, __pyx_int_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2115; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF_SET(__pyx_v_nt_i, __pyx_t_2);
       __pyx_t_2 = 0;
     }
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2100
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2116
  *                 off += (nt[nt_i][2] - nt[nt_i][1])
  *                 nt_i += 1
  *             links[i][0] -= off             # <<<<<<<<<<<<<<
  *             i += 1
  *         nt_i = 0
  */
-    __pyx_t_2 = PyObject_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_links), __pyx_v_i); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2100; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyObject_GetItem(((PyObject *)__pyx_cur_scope->__pyx_v_links), __pyx_v_i); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2116; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __pyx_t_4 = 0;
-    __pyx_t_1 = __Pyx_GetItemInt(__pyx_t_2, __pyx_t_4, sizeof(Py_ssize_t), PyInt_FromSsize_t, 0, 1, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2100; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = __Pyx_GetItemInt(__pyx_t_2, __pyx_t_4, sizeof(Py_ssize_t), PyInt_FromSsize_t, 0, 1, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2116; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_3 = PyNumber_InPlaceSubtract(__pyx_t_1, __pyx_v_off); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2100; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyNumber_InPlaceSubtract(__pyx_t_1, __pyx_v_off); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2116; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-    if (__Pyx_SetItemInt(__pyx_t_2, __pyx_t_4, __pyx_t_3, sizeof(Py_ssize_t), PyInt_FromSsize_t, 0, 1, 1) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2100; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (__Pyx_SetItemInt(__pyx_t_2, __pyx_t_4, __pyx_t_3, sizeof(Py_ssize_t), PyInt_FromSsize_t, 0, 1, 1) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2116; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2101
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2117
  *                 nt_i += 1
  *             links[i][0] -= off
  *             i += 1             # <<<<<<<<<<<<<<
  *         nt_i = 0
  *         off = e_i
  */
-    __pyx_t_2 = PyNumber_InPlaceAdd(__pyx_v_i, __pyx_int_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2101; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyNumber_InPlaceAdd(__pyx_v_i, __pyx_int_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2117; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF_SET(__pyx_v_i, __pyx_t_2);
     __pyx_t_2 = 0;
   }
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2102
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2118
  *             links[i][0] -= off
  *             i += 1
  *         nt_i = 0             # <<<<<<<<<<<<<<
@@ -64263,7 +64918,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_27form_rule(s
   __Pyx_INCREF(__pyx_int_0);
   __Pyx_DECREF_SET(__pyx_v_nt_i, __pyx_int_0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2103
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2119
  *             i += 1
  *         nt_i = 0
  *         off = e_i             # <<<<<<<<<<<<<<
@@ -64273,7 +64928,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_27form_rule(s
   __Pyx_INCREF(__pyx_v_e_i);
   __Pyx_DECREF_SET(__pyx_v_off, __pyx_v_e_i);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2104
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2120
  *         nt_i = 0
  *         off = e_i
  *         i = 0             # <<<<<<<<<<<<<<
@@ -64283,7 +64938,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_27form_rule(s
   __Pyx_INCREF(__pyx_int_0);
   __Pyx_DECREF_SET(__pyx_v_i, __pyx_int_0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2105
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2121
  *         off = e_i
  *         i = 0
  *         while i < links_len:             # <<<<<<<<<<<<<<
@@ -64291,12 +64946,12 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_27form_rule(s
  *                 off += (nt_inv[nt_i][4] - nt_inv[nt_i][3])
  */
   while (1) {
-    __pyx_t_2 = PyObject_RichCompare(__pyx_v_i, __pyx_v_links_len, Py_LT); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2105; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __pyx_t_14 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_14 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2105; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyObject_RichCompare(__pyx_v_i, __pyx_v_links_len, Py_LT); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2121; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_14 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_14 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2121; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     if (!__pyx_t_14) break;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2106
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2122
  *         i = 0
  *         while i < links_len:
  *             while nt_i < nt_len and links_inv[i][1] > nt_inv[nt_i][3]:             # <<<<<<<<<<<<<<
@@ -64304,24 +64959,24 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_27form_rule(s
  *                 nt_i += 1
  */
     while (1) {
-      __pyx_t_2 = PyObject_RichCompare(__pyx_v_nt_i, __pyx_v_nt_len, Py_LT); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2106; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __pyx_t_14 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_14 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2106; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyObject_RichCompare(__pyx_v_nt_i, __pyx_v_nt_len, Py_LT); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2122; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_14 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_14 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2122; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       if (__pyx_t_14) {
-        __pyx_t_2 = PyObject_GetItem(__pyx_v_links_inv, __pyx_v_i); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2106; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_2 = PyObject_GetItem(__pyx_v_links_inv, __pyx_v_i); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2122; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_2);
-        __pyx_t_3 = __Pyx_GetItemInt(__pyx_t_2, 1, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2106; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_3 = __Pyx_GetItemInt(__pyx_t_2, 1, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2122; __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_v_nt_inv, __pyx_v_nt_i); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2106; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_2 = PyObject_GetItem(__pyx_v_nt_inv, __pyx_v_nt_i); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2122; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_2);
-        __pyx_t_1 = __Pyx_GetItemInt(__pyx_t_2, 3, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2106; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_1 = __Pyx_GetItemInt(__pyx_t_2, 3, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2122; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_1);
         __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-        __pyx_t_2 = PyObject_RichCompare(__pyx_t_3, __pyx_t_1, Py_GT); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2106; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_2 = PyObject_RichCompare(__pyx_t_3, __pyx_t_1, Py_GT); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2122; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
         __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-        __pyx_t_7 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_7 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2106; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_7 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_7 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2122; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
         __pyx_t_13 = __pyx_t_7;
       } else {
@@ -64329,79 +64984,79 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_27form_rule(s
       }
       if (!__pyx_t_13) break;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2107
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2123
  *         while i < links_len:
  *             while nt_i < nt_len and links_inv[i][1] > nt_inv[nt_i][3]:
  *                 off += (nt_inv[nt_i][4] - nt_inv[nt_i][3])             # <<<<<<<<<<<<<<
  *                 nt_i += 1
  *             links_inv[i][1] -= off
  */
-      __pyx_t_2 = PyObject_GetItem(__pyx_v_nt_inv, __pyx_v_nt_i); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2107; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyObject_GetItem(__pyx_v_nt_inv, __pyx_v_nt_i); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2123; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_1 = __Pyx_GetItemInt(__pyx_t_2, 4, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2107; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = __Pyx_GetItemInt(__pyx_t_2, 4, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2123; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-      __pyx_t_2 = PyObject_GetItem(__pyx_v_nt_inv, __pyx_v_nt_i); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2107; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyObject_GetItem(__pyx_v_nt_inv, __pyx_v_nt_i); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2123; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_3 = __Pyx_GetItemInt(__pyx_t_2, 3, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2107; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = __Pyx_GetItemInt(__pyx_t_2, 3, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2123; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-      __pyx_t_2 = PyNumber_Subtract(__pyx_t_1, __pyx_t_3); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2107; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyNumber_Subtract(__pyx_t_1, __pyx_t_3); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2123; __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_3); __pyx_t_3 = 0;
-      __pyx_t_3 = PyNumber_InPlaceAdd(__pyx_v_off, __pyx_t_2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2107; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = PyNumber_InPlaceAdd(__pyx_v_off, __pyx_t_2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2123; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       __Pyx_DECREF_SET(__pyx_v_off, __pyx_t_3);
       __pyx_t_3 = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2108
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2124
  *             while nt_i < nt_len and links_inv[i][1] > nt_inv[nt_i][3]:
  *                 off += (nt_inv[nt_i][4] - nt_inv[nt_i][3])
  *                 nt_i += 1             # <<<<<<<<<<<<<<
  *             links_inv[i][1] -= off
  *             i += 1
  */
-      __pyx_t_3 = PyNumber_InPlaceAdd(__pyx_v_nt_i, __pyx_int_1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2108; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = PyNumber_InPlaceAdd(__pyx_v_nt_i, __pyx_int_1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2124; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_DECREF_SET(__pyx_v_nt_i, __pyx_t_3);
       __pyx_t_3 = 0;
     }
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2109
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2125
  *                 off += (nt_inv[nt_i][4] - nt_inv[nt_i][3])
  *                 nt_i += 1
  *             links_inv[i][1] -= off             # <<<<<<<<<<<<<<
  *             i += 1
  * 
  */
-    __pyx_t_3 = PyObject_GetItem(__pyx_v_links_inv, __pyx_v_i); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2109; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_GetItem(__pyx_v_links_inv, __pyx_v_i); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2125; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     __pyx_t_4 = 1;
-    __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_3, __pyx_t_4, sizeof(Py_ssize_t), PyInt_FromSsize_t, 0, 1, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2109; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_3, __pyx_t_4, sizeof(Py_ssize_t), PyInt_FromSsize_t, 0, 1, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2125; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_1 = PyNumber_InPlaceSubtract(__pyx_t_2, __pyx_v_off); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2109; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyNumber_InPlaceSubtract(__pyx_t_2, __pyx_v_off); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2125; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    if (__Pyx_SetItemInt(__pyx_t_3, __pyx_t_4, __pyx_t_1, sizeof(Py_ssize_t), PyInt_FromSsize_t, 0, 1, 1) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2109; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (__Pyx_SetItemInt(__pyx_t_3, __pyx_t_4, __pyx_t_1, sizeof(Py_ssize_t), PyInt_FromSsize_t, 0, 1, 1) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2125; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2110
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2126
  *                 nt_i += 1
  *             links_inv[i][1] -= off
  *             i += 1             # <<<<<<<<<<<<<<
  * 
  *         # Find lexical span
  */
-    __pyx_t_3 = PyNumber_InPlaceAdd(__pyx_v_i, __pyx_int_1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2110; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyNumber_InPlaceAdd(__pyx_v_i, __pyx_int_1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2126; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_DECREF_SET(__pyx_v_i, __pyx_t_3);
     __pyx_t_3 = 0;
   }
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2113
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2129
  * 
  *         # Find lexical span
  *         lex_f_i = f_i             # <<<<<<<<<<<<<<
@@ -64411,75 +65066,75 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_27form_rule(s
   __Pyx_INCREF(__pyx_v_f_i);
   __pyx_v_lex_f_i = __pyx_v_f_i;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2114
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2130
  *         # Find lexical span
  *         lex_f_i = f_i
  *         lex_f_j = f_i + (len(f_span) - 1)             # <<<<<<<<<<<<<<
  *         if nt:
  *             if nt[0][1] == lex_f_i:
  */
-  __pyx_t_4 = PyObject_Length(__pyx_v_f_span); if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2114; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_t_3 = PyInt_FromSsize_t((__pyx_t_4 - 1)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2114; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_4 = PyObject_Length(__pyx_v_f_span); if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2130; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyInt_FromSsize_t((__pyx_t_4 - 1)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2130; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
-  __pyx_t_1 = PyNumber_Add(__pyx_v_f_i, __pyx_t_3); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2114; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyNumber_Add(__pyx_v_f_i, __pyx_t_3); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2130; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   __pyx_v_lex_f_j = __pyx_t_1;
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2115
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2131
  *         lex_f_i = f_i
  *         lex_f_j = f_i + (len(f_span) - 1)
  *         if nt:             # <<<<<<<<<<<<<<
  *             if nt[0][1] == lex_f_i:
  *                 lex_f_i += (nt[0][2] - nt[0][1]) + 1
  */
-  __pyx_t_13 = __Pyx_PyObject_IsTrue(__pyx_v_nt); if (unlikely(__pyx_t_13 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2115; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_13 = __Pyx_PyObject_IsTrue(__pyx_v_nt); if (unlikely(__pyx_t_13 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2131; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   if (__pyx_t_13) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2116
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2132
  *         lex_f_j = f_i + (len(f_span) - 1)
  *         if nt:
  *             if nt[0][1] == lex_f_i:             # <<<<<<<<<<<<<<
  *                 lex_f_i += (nt[0][2] - nt[0][1]) + 1
  *             if nt[-1][2] == lex_f_j:
  */
-    __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_nt, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2116; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_nt, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2132; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_3 = __Pyx_GetItemInt(__pyx_t_1, 1, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2116; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = __Pyx_GetItemInt(__pyx_t_1, 1, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2132; __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_RichCompare(__pyx_t_3, __pyx_v_lex_f_i, Py_EQ); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2116; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyObject_RichCompare(__pyx_t_3, __pyx_v_lex_f_i, Py_EQ); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2132; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __pyx_t_13 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_13 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2116; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_13 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_13 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2132; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     if (__pyx_t_13) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2117
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2133
  *         if nt:
  *             if nt[0][1] == lex_f_i:
  *                 lex_f_i += (nt[0][2] - nt[0][1]) + 1             # <<<<<<<<<<<<<<
  *             if nt[-1][2] == lex_f_j:
  *                 lex_f_j -= (nt[-1][2] - nt[-1][1]) + 1
  */
-      __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_nt, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2117; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_nt, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2133; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
-      __pyx_t_3 = __Pyx_GetItemInt(__pyx_t_1, 2, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2117; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = __Pyx_GetItemInt(__pyx_t_1, 2, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2133; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-      __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_nt, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2117; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_nt, 0, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2133; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
-      __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_1, 1, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2117; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_1, 1, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2133; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-      __pyx_t_1 = PyNumber_Subtract(__pyx_t_3, __pyx_t_2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2117; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyNumber_Subtract(__pyx_t_3, __pyx_t_2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2133; __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_2); __pyx_t_2 = 0;
-      __pyx_t_2 = PyNumber_Add(__pyx_t_1, __pyx_int_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2117; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyNumber_Add(__pyx_t_1, __pyx_int_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2133; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-      __pyx_t_1 = PyNumber_InPlaceAdd(__pyx_v_lex_f_i, __pyx_t_2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2117; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyNumber_InPlaceAdd(__pyx_v_lex_f_i, __pyx_t_2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2133; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       __Pyx_DECREF_SET(__pyx_v_lex_f_i, __pyx_t_1);
@@ -64488,49 +65143,49 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_27form_rule(s
     }
     __pyx_L24:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2118
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2134
  *             if nt[0][1] == lex_f_i:
  *                 lex_f_i += (nt[0][2] - nt[0][1]) + 1
  *             if nt[-1][2] == lex_f_j:             # <<<<<<<<<<<<<<
  *                 lex_f_j -= (nt[-1][2] - nt[-1][1]) + 1
  * 
  */
-    __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2118; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2134; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_1, 2, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2118; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_1, 2, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2134; __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_t_2, __pyx_v_lex_f_j, Py_EQ); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2118; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyObject_RichCompare(__pyx_t_2, __pyx_v_lex_f_j, Py_EQ); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2134; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __pyx_t_13 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_13 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2118; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_13 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_13 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2134; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     if (__pyx_t_13) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2119
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2135
  *                 lex_f_i += (nt[0][2] - nt[0][1]) + 1
  *             if nt[-1][2] == lex_f_j:
  *                 lex_f_j -= (nt[-1][2] - nt[-1][1]) + 1             # <<<<<<<<<<<<<<
  * 
  *         # Create rule (f_phrase, e_phrase, links, f_link_min, f_link_max)
  */
-      __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2119; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2135; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
-      __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_1, 2, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2119; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_1, 2, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2135; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-      __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2119; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_nt, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2135; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
-      __pyx_t_3 = __Pyx_GetItemInt(__pyx_t_1, 1, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2119; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = __Pyx_GetItemInt(__pyx_t_1, 1, sizeof(long), PyInt_FromLong, 0, 0, 1); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2135; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-      __pyx_t_1 = PyNumber_Subtract(__pyx_t_2, __pyx_t_3); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2119; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyNumber_Subtract(__pyx_t_2, __pyx_t_3); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2135; __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_3); __pyx_t_3 = 0;
-      __pyx_t_3 = PyNumber_Add(__pyx_t_1, __pyx_int_1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2119; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = PyNumber_Add(__pyx_t_1, __pyx_int_1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2135; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-      __pyx_t_1 = PyNumber_InPlaceSubtract(__pyx_v_lex_f_j, __pyx_t_3); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2119; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyNumber_InPlaceSubtract(__pyx_v_lex_f_j, __pyx_t_3); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2135; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       __Pyx_DECREF_SET(__pyx_v_lex_f_j, __pyx_t_1);
@@ -64542,63 +65197,63 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_27form_rule(s
   }
   __pyx_L23:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2122
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2138
  * 
  *         # Create rule (f_phrase, e_phrase, links, f_link_min, f_link_max)
  *         f = Phrase(f_sym)             # <<<<<<<<<<<<<<
  *         e = Phrase(e_sym)
  *         a = tuple(self.alignment.link(i, j) for i, j in links)
  */
-  __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2122; __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 = 2138; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_INCREF(((PyObject *)__pyx_v_f_sym));
   PyTuple_SET_ITEM(__pyx_t_1, 0, ((PyObject *)__pyx_v_f_sym));
   __Pyx_GIVEREF(((PyObject *)__pyx_v_f_sym));
-  __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_Phrase)), ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2122; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_Phrase)), ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2138; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
   __pyx_v_f = ((struct __pyx_obj_4cdec_2sa_3_sa_Phrase *)__pyx_t_3);
   __pyx_t_3 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2123
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2139
  *         # Create rule (f_phrase, e_phrase, links, f_link_min, f_link_max)
  *         f = Phrase(f_sym)
  *         e = Phrase(e_sym)             # <<<<<<<<<<<<<<
  *         a = tuple(self.alignment.link(i, j) for i, j in links)
  *         return (f, e, a, lex_f_i, lex_f_j)
  */
-  __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2123; __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 = 2139; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_INCREF(((PyObject *)__pyx_v_e_sym));
   PyTuple_SET_ITEM(__pyx_t_3, 0, ((PyObject *)__pyx_v_e_sym));
   __Pyx_GIVEREF(((PyObject *)__pyx_v_e_sym));
-  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_Phrase)), ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2123; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_Phrase)), ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2139; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
   __pyx_v_e = ((struct __pyx_obj_4cdec_2sa_3_sa_Phrase *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2124
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2140
  *         f = Phrase(f_sym)
  *         e = Phrase(e_sym)
  *         a = tuple(self.alignment.link(i, j) for i, j in links)             # <<<<<<<<<<<<<<
  *         return (f, e, a, lex_f_i, lex_f_j)
  * 
  */
-  __pyx_t_1 = __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_9form_rule_2genexpr(((PyObject*)__pyx_cur_scope)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2124; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_9form_rule_2genexpr(((PyObject*)__pyx_cur_scope)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2140; __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[8]; __pyx_lineno = 2124; __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 = 2140; __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*)(&PyTuple_Type))), ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2124; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)(&PyTuple_Type))), ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2140; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
   __pyx_v_a = ((PyObject*)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2125
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2141
  *         e = Phrase(e_sym)
  *         a = tuple(self.alignment.link(i, j) for i, j in links)
  *         return (f, e, a, lex_f_i, lex_f_j)             # <<<<<<<<<<<<<<
@@ -64606,7 +65261,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_27form_rule(s
  *     # Rule string from rule
  */
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = PyTuple_New(5); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2125; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyTuple_New(5); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2141; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_INCREF(((PyObject *)__pyx_v_f));
   PyTuple_SET_ITEM(__pyx_t_1, 0, ((PyObject *)__pyx_v_f));
@@ -64694,16 +65349,16 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_30fmt_rule(Py
         case  1:
         if (likely((values[1] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__e)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("fmt_rule", 1, 3, 3, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2128; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("fmt_rule", 1, 3, 3, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2144; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
         case  2:
         if (likely((values[2] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__a)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("fmt_rule", 1, 3, 3, 2); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2128; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("fmt_rule", 1, 3, 3, 2); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2144; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "fmt_rule") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2128; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "fmt_rule") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2144; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else if (PyTuple_GET_SIZE(__pyx_args) != 3) {
       goto __pyx_L5_argtuple_error;
@@ -64718,7 +65373,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_30fmt_rule(Py
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("fmt_rule", 1, 3, 3, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2128; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+  __Pyx_RaiseArgtupleInvalid("fmt_rule", 1, 3, 3, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2144; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_AddTraceback("cdec.sa._sa.HieroCachingRuleFactory.fmt_rule", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -64730,7 +65385,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_30fmt_rule(Py
 }
 static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_8fmt_rule_2generator16(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2129
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2145
  *     # Rule string from rule
  *     def fmt_rule(self, f, e, a):
  *         a_str = ' '.join('{0}-{1}'.format(*self.alignment.unlink(packed)) for packed in a)             # <<<<<<<<<<<<<<
@@ -64756,7 +65411,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_8fmt_rule_gen
   __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_4cdec_2sa_3_sa_23HieroCachingRuleFactory_8fmt_rule_2generator16, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2129; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_8fmt_rule_2generator16, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2145; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_cur_scope);
     __Pyx_RefNannyFinishContext();
     return (PyObject *) gen;
@@ -64798,13 +65453,13 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_8fmt_rule_2ge
     return NULL;
   }
   __pyx_L3_first_run:;
-  if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2129; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (unlikely(!__pyx_cur_scope->__pyx_outer_scope->__pyx_v_a)) { __Pyx_RaiseClosureNameError("a"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2129; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+  if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2145; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (unlikely(!__pyx_cur_scope->__pyx_outer_scope->__pyx_v_a)) { __Pyx_RaiseClosureNameError("a"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2145; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
   if (PyList_CheckExact(__pyx_cur_scope->__pyx_outer_scope->__pyx_v_a) || PyTuple_CheckExact(__pyx_cur_scope->__pyx_outer_scope->__pyx_v_a)) {
     __pyx_t_1 = __pyx_cur_scope->__pyx_outer_scope->__pyx_v_a; __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_outer_scope->__pyx_v_a); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2129; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = -1; __pyx_t_1 = PyObject_GetIter(__pyx_cur_scope->__pyx_outer_scope->__pyx_v_a); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2145; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __pyx_t_3 = Py_TYPE(__pyx_t_1)->tp_iternext;
   }
@@ -64812,23 +65467,23 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_8fmt_rule_2ge
     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++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2129; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyList_GET_ITEM(__pyx_t_1, __pyx_t_2); __Pyx_INCREF(__pyx_t_4); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2145; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #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 = 2129; __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 = 2145; __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++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2129; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyTuple_GET_ITEM(__pyx_t_1, __pyx_t_2); __Pyx_INCREF(__pyx_t_4); __pyx_t_2++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2145; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       #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 = 2129; __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 = 2145; __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 = 2129; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          else {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2145; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         }
         break;
       }
@@ -64838,24 +65493,24 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_8fmt_rule_2ge
     __Pyx_XDECREF_SET(__pyx_cur_scope->__pyx_v_packed, __pyx_t_4);
     __Pyx_GIVEREF(__pyx_t_4);
     __pyx_t_4 = 0;
-    __pyx_t_4 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_kp_s_150), __pyx_n_s__format); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2129; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_kp_s_150), __pyx_n_s__format); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2145; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
-    if (unlikely(!__pyx_cur_scope->__pyx_outer_scope->__pyx_v_self)) { __Pyx_RaiseClosureNameError("self"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2129; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
-    __pyx_t_5 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_cur_scope->__pyx_outer_scope->__pyx_v_self->alignment), __pyx_n_s__unlink); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2129; __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[8]; __pyx_lineno = 2145; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+    __pyx_t_5 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_cur_scope->__pyx_outer_scope->__pyx_v_self->alignment), __pyx_n_s__unlink); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2145; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
-    __pyx_t_6 = PyTuple_New(1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2129; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = PyTuple_New(1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2145; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_INCREF(__pyx_cur_scope->__pyx_v_packed);
     PyTuple_SET_ITEM(__pyx_t_6, 0, __pyx_cur_scope->__pyx_v_packed);
     __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_packed);
-    __pyx_t_7 = PyObject_Call(__pyx_t_5, ((PyObject *)__pyx_t_6), NULL); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2129; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_7 = PyObject_Call(__pyx_t_5, ((PyObject *)__pyx_t_6), NULL); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2145; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_7);
     __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
     __Pyx_DECREF(((PyObject *)__pyx_t_6)); __pyx_t_6 = 0;
-    __pyx_t_6 = PySequence_Tuple(__pyx_t_7); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2129; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = PySequence_Tuple(__pyx_t_7); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2145; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(((PyObject *)__pyx_t_6));
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-    __pyx_t_7 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_6), NULL); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2129; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_7 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_6), NULL); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2145; __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_6)); __pyx_t_6 = 0;
@@ -64876,7 +65531,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_8fmt_rule_2ge
     __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[8]; __pyx_lineno = 2129; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2145; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   }
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   PyErr_SetNone(PyExc_StopIteration);
@@ -64896,7 +65551,7 @@ static PyObject *__pyx_gb_4cdec_2sa_3_sa_23HieroCachingRuleFactory_8fmt_rule_2ge
   return NULL;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2128
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2144
  * 
  *     # Rule string from rule
  *     def fmt_rule(self, f, e, a):             # <<<<<<<<<<<<<<
@@ -64929,30 +65584,30 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_29fmt_rule(st
   __Pyx_INCREF(__pyx_cur_scope->__pyx_v_a);
   __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_a);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2129
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2145
  *     # Rule string from rule
  *     def fmt_rule(self, f, e, a):
  *         a_str = ' '.join('{0}-{1}'.format(*self.alignment.unlink(packed)) for packed in a)             # <<<<<<<<<<<<<<
  *         return '[X] ||| {0} ||| {1} ||| {2}'.format(f, e, a_str)
  * 
  */
-  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_kp_s_69), __pyx_n_s__join); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2129; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_kp_s_69), __pyx_n_s__join); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2145; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_8fmt_rule_genexpr(((PyObject*)__pyx_cur_scope)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2129; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_8fmt_rule_genexpr(((PyObject*)__pyx_cur_scope)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2145; __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 = 2129; __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 = 2145; __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 = 2129; __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[8]; __pyx_lineno = 2145; __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_v_a_str = __pyx_t_2;
   __pyx_t_2 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2130
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2146
  *     def fmt_rule(self, f, e, a):
  *         a_str = ' '.join('{0}-{1}'.format(*self.alignment.unlink(packed)) for packed in a)
  *         return '[X] ||| {0} ||| {1} ||| {2}'.format(f, e, a_str)             # <<<<<<<<<<<<<<
@@ -64960,9 +65615,9 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_29fmt_rule(st
  *     # Lookup online stats for phrase pair (f, e).  Return None if no match.
  */
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_kp_s_151), __pyx_n_s__format); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2130; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_kp_s_151), __pyx_n_s__format); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2146; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_3 = PyTuple_New(3); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2130; __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 = 2146; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_INCREF(__pyx_v_f);
   PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_v_f);
@@ -64973,7 +65628,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_29fmt_rule(st
   __Pyx_INCREF(__pyx_v_a_str);
   PyTuple_SET_ITEM(__pyx_t_3, 2, __pyx_v_a_str);
   __Pyx_GIVEREF(__pyx_v_a_str);
-  __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 = 2130; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __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 = 2146; __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;
@@ -65013,7 +65668,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_32online_ctx_
     static PyObject **__pyx_pyargnames[] = {&__pyx_n_s__f,&__pyx_n_s__e,&__pyx_n_s__ctx_name,0};
     PyObject* values[3] = {0,0,0};
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2134
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2150
  *     # Lookup online stats for phrase pair (f, e).  Return None if no match.
  *     # IMPORTANT: use get() to avoid adding items to defaultdict
  *     def online_ctx_lookup(self, f, e, ctx_name=None):             # <<<<<<<<<<<<<<
@@ -65039,7 +65694,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_32online_ctx_
         case  1:
         if (likely((values[1] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__e)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("online_ctx_lookup", 0, 2, 3, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2134; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("online_ctx_lookup", 0, 2, 3, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2150; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
         case  2:
         if (kw_args > 0) {
@@ -65048,7 +65703,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_32online_ctx_
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "online_ctx_lookup") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2134; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "online_ctx_lookup") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2150; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else {
       switch (PyTuple_GET_SIZE(__pyx_args)) {
@@ -65065,7 +65720,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_32online_ctx_
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("online_ctx_lookup", 0, 2, 3, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2134; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+  __Pyx_RaiseArgtupleInvalid("online_ctx_lookup", 0, 2, 3, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2150; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_AddTraceback("cdec.sa._sa.HieroCachingRuleFactory.online_ctx_lookup", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -65095,7 +65750,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_31online_ctx_
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("online_ctx_lookup", 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2135
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2151
  *     # IMPORTANT: use get() to avoid adding items to defaultdict
  *     def online_ctx_lookup(self, f, e, ctx_name=None):
  *         if self.online:             # <<<<<<<<<<<<<<
@@ -65105,31 +65760,31 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_31online_ctx_
   __pyx_t_1 = (__pyx_v_self->online != 0);
   if (__pyx_t_1) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2136
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2152
  *     def online_ctx_lookup(self, f, e, ctx_name=None):
  *         if self.online:
  *             stats = self.online_stats[ctx_name]             # <<<<<<<<<<<<<<
  *             fcount = stats.phrases_f.get(f, 0)
  *             fsample_count = stats.samples_f.get(f, 0)
  */
-    __pyx_t_2 = PyObject_GetItem(__pyx_v_self->online_stats, __pyx_v_ctx_name); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2136; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyObject_GetItem(__pyx_v_self->online_stats, __pyx_v_ctx_name); if (!__pyx_t_2) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2152; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __pyx_v_stats = __pyx_t_2;
     __pyx_t_2 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2137
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2153
  *         if self.online:
  *             stats = self.online_stats[ctx_name]
  *             fcount = stats.phrases_f.get(f, 0)             # <<<<<<<<<<<<<<
  *             fsample_count = stats.samples_f.get(f, 0)
  *             d = stats.phrases_fe.get(f, None)
  */
-    __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_stats, __pyx_n_s__phrases_f); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2137; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_stats, __pyx_n_s__phrases_f); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2153; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s__get); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2137; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s__get); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2153; __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 = 2137; __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 = 2153; __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);
@@ -65137,26 +65792,26 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_31online_ctx_
     __Pyx_INCREF(__pyx_int_0);
     PyTuple_SET_ITEM(__pyx_t_2, 1, __pyx_int_0);
     __Pyx_GIVEREF(__pyx_int_0);
-    __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 = 2137; __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 = 2153; __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_v_fcount = __pyx_t_4;
     __pyx_t_4 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2138
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2154
  *             stats = self.online_stats[ctx_name]
  *             fcount = stats.phrases_f.get(f, 0)
  *             fsample_count = stats.samples_f.get(f, 0)             # <<<<<<<<<<<<<<
  *             d = stats.phrases_fe.get(f, None)
  *             paircount = d.get(e, 0) if d else 0
  */
-    __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_v_stats, __pyx_n_s__samples_f); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2138; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_v_stats, __pyx_n_s__samples_f); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2154; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_t_4, __pyx_n_s__get); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2138; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_t_4, __pyx_n_s__get); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2154; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    __pyx_t_4 = PyTuple_New(2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2138; __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 = 2154; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_INCREF(__pyx_v_f);
     PyTuple_SET_ITEM(__pyx_t_4, 0, __pyx_v_f);
@@ -65164,26 +65819,26 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_31online_ctx_
     __Pyx_INCREF(__pyx_int_0);
     PyTuple_SET_ITEM(__pyx_t_4, 1, __pyx_int_0);
     __Pyx_GIVEREF(__pyx_int_0);
-    __pyx_t_3 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2138; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2154; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
     __pyx_v_fsample_count = __pyx_t_3;
     __pyx_t_3 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2139
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2155
  *             fcount = stats.phrases_f.get(f, 0)
  *             fsample_count = stats.samples_f.get(f, 0)
  *             d = stats.phrases_fe.get(f, None)             # <<<<<<<<<<<<<<
  *             paircount = d.get(e, 0) if d else 0
  *             return OnlineFeatureContext(fcount, fsample_count, paircount, stats.bilex_f, stats.bilex_e, stats.bilex_fe)
  */
-    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_stats, __pyx_n_s__phrases_fe); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2139; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_stats, __pyx_n_s__phrases_fe); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2155; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_3, __pyx_n_s__get); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2139; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_3, __pyx_n_s__get); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2155; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2139; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2155; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_INCREF(__pyx_v_f);
     PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_v_f);
@@ -65191,25 +65846,25 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_31online_ctx_
     __Pyx_INCREF(Py_None);
     PyTuple_SET_ITEM(__pyx_t_3, 1, Py_None);
     __Pyx_GIVEREF(Py_None);
-    __pyx_t_2 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2139; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2155; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
     __pyx_v_d = __pyx_t_2;
     __pyx_t_2 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2140
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2156
  *             fsample_count = stats.samples_f.get(f, 0)
  *             d = stats.phrases_fe.get(f, None)
  *             paircount = d.get(e, 0) if d else 0             # <<<<<<<<<<<<<<
  *             return OnlineFeatureContext(fcount, fsample_count, paircount, stats.bilex_f, stats.bilex_e, stats.bilex_fe)
  *         return None
  */
-    __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_v_d); if (unlikely(__pyx_t_1 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2140; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_v_d); if (unlikely(__pyx_t_1 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2156; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     if (__pyx_t_1) {
-      __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_d, __pyx_n_s__get); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2140; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_d, __pyx_n_s__get); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2156; __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[8]; __pyx_lineno = 2140; __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 = 2156; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_INCREF(__pyx_v_e);
       PyTuple_SET_ITEM(__pyx_t_4, 0, __pyx_v_e);
@@ -65217,7 +65872,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_31online_ctx_
       __Pyx_INCREF(__pyx_int_0);
       PyTuple_SET_ITEM(__pyx_t_4, 1, __pyx_int_0);
       __Pyx_GIVEREF(__pyx_int_0);
-      __pyx_t_5 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2140; __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[8]; __pyx_lineno = 2156; __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;
@@ -65230,7 +65885,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_31online_ctx_
     __pyx_v_paircount = __pyx_t_2;
     __pyx_t_2 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2141
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2157
  *             d = stats.phrases_fe.get(f, None)
  *             paircount = d.get(e, 0) if d else 0
  *             return OnlineFeatureContext(fcount, fsample_count, paircount, stats.bilex_f, stats.bilex_e, stats.bilex_fe)             # <<<<<<<<<<<<<<
@@ -65238,15 +65893,15 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_31online_ctx_
  * 
  */
     __Pyx_XDECREF(__pyx_r);
-    __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_152); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2141; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_152); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2157; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_5 = __Pyx_PyObject_GetAttrStr(__pyx_v_stats, __pyx_n_s__bilex_f); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2141; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = __Pyx_PyObject_GetAttrStr(__pyx_v_stats, __pyx_n_s__bilex_f); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2157; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
-    __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_v_stats, __pyx_n_s__bilex_e); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2141; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_v_stats, __pyx_n_s__bilex_e); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2157; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_stats, __pyx_n_s__bilex_fe); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2141; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_stats, __pyx_n_s__bilex_fe); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2157; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_6 = PyTuple_New(6); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2141; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = PyTuple_New(6); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2157; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_INCREF(__pyx_v_fcount);
     PyTuple_SET_ITEM(__pyx_t_6, 0, __pyx_v_fcount);
@@ -65266,7 +65921,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_31online_ctx_
     __pyx_t_5 = 0;
     __pyx_t_4 = 0;
     __pyx_t_3 = 0;
-    __pyx_t_3 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_6), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2141; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_6), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2157; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     __Pyx_DECREF(((PyObject *)__pyx_t_6)); __pyx_t_6 = 0;
@@ -65277,7 +65932,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_31online_ctx_
   }
   __pyx_L3:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2142
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2158
  *             paircount = d.get(e, 0) if d else 0
  *             return OnlineFeatureContext(fcount, fsample_count, paircount, stats.bilex_f, stats.bilex_e, stats.bilex_fe)
  *         return None             # <<<<<<<<<<<<<<
@@ -65363,36 +66018,36 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_13get_f_phras
         case  1:
         if (likely((values[1] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__f_j)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("extract", 1, 7, 7, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2152; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("extract", 1, 7, 7, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2168; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
         case  2:
         if (likely((values[2] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__lex_i)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("extract", 1, 7, 7, 2); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2152; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("extract", 1, 7, 7, 2); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2168; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
         case  3:
         if (likely((values[3] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__lex_j)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("extract", 1, 7, 7, 3); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2152; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("extract", 1, 7, 7, 3); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2168; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
         case  4:
         if (likely((values[4] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__wc)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("extract", 1, 7, 7, 4); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2152; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("extract", 1, 7, 7, 4); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2168; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
         case  5:
         if (likely((values[5] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__ntc)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("extract", 1, 7, 7, 5); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2152; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("extract", 1, 7, 7, 5); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2168; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
         case  6:
         if (likely((values[6] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__syms)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("extract", 1, 7, 7, 6); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2152; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("extract", 1, 7, 7, 6); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2168; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "extract") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2152; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "extract") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2168; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else if (PyTuple_GET_SIZE(__pyx_args) != 7) {
       goto __pyx_L5_argtuple_error;
@@ -65415,7 +66070,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_13get_f_phras
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("extract", 1, 7, 7, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2152; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+  __Pyx_RaiseArgtupleInvalid("extract", 1, 7, 7, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2168; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_AddTraceback("cdec.sa._sa.HieroCachingRuleFactory.get_f_phrases.extract", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -65426,7 +66081,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_13get_f_phras
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2152
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2168
  *         phrases = set() # (fphrase, lex_i, lex_j)
  * 
  *         def extract(f_i, f_j, lex_i, lex_j, wc, ntc, syms):             # <<<<<<<<<<<<<<
@@ -65459,33 +66114,33 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_13get_f_phras
   __pyx_outer_scope = (struct __pyx_obj_4cdec_2sa_3_sa___pyx_scope_struct_26_get_f_phrases *) __Pyx_CyFunction_GetClosure(__pyx_self);
   __pyx_cur_scope = __pyx_outer_scope;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2154
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2170
  *         def extract(f_i, f_j, lex_i, lex_j, wc, ntc, syms):
  *             # Phrase extraction limits
  *             if f_j > (f_len - 1) or (f_j - f_i) + 1 > self.max_initial_size:             # <<<<<<<<<<<<<<
  *                 return
  *             # Extend with word
  */
-  if (unlikely(!__pyx_cur_scope->__pyx_v_f_len)) { __Pyx_RaiseClosureNameError("f_len"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2154; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
-  __pyx_t_1 = PyNumber_Subtract(__pyx_cur_scope->__pyx_v_f_len, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2154; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (unlikely(!__pyx_cur_scope->__pyx_v_f_len)) { __Pyx_RaiseClosureNameError("f_len"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2170; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+  __pyx_t_1 = PyNumber_Subtract(__pyx_cur_scope->__pyx_v_f_len, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2170; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = PyObject_RichCompare(__pyx_v_f_j, __pyx_t_1, Py_GT); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2154; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyObject_RichCompare(__pyx_v_f_j, __pyx_t_1, Py_GT); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2170; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2154; __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 = 2170; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   if (!__pyx_t_3) {
-    __pyx_t_2 = PyNumber_Subtract(__pyx_v_f_j, __pyx_v_f_i); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2154; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyNumber_Subtract(__pyx_v_f_j, __pyx_v_f_i); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2170; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_1 = PyNumber_Add(__pyx_t_2, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2154; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyNumber_Add(__pyx_t_2, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2170; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    if (unlikely(!__pyx_cur_scope->__pyx_v_self)) { __Pyx_RaiseClosureNameError("self"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2154; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
-    __pyx_t_2 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_self->max_initial_size); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2154; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (unlikely(!__pyx_cur_scope->__pyx_v_self)) { __Pyx_RaiseClosureNameError("self"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2170; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+    __pyx_t_2 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_self->max_initial_size); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2170; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_4 = PyObject_RichCompare(__pyx_t_1, __pyx_t_2, Py_GT); __Pyx_XGOTREF(__pyx_t_4); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2154; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyObject_RichCompare(__pyx_t_1, __pyx_t_2, Py_GT); __Pyx_XGOTREF(__pyx_t_4); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2170; __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;
-    __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2154; __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 = 2170; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     __pyx_t_6 = __pyx_t_5;
   } else {
@@ -65493,7 +66148,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_13get_f_phras
   }
   if (__pyx_t_6) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2155
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2171
  *             # Phrase extraction limits
  *             if f_j > (f_len - 1) or (f_j - f_i) + 1 > self.max_initial_size:
  *                 return             # <<<<<<<<<<<<<<
@@ -65507,58 +66162,58 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_13get_f_phras
   }
   __pyx_L3:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2157
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2173
  *                 return
  *             # Extend with word
  *             if wc + ntc < self.max_length:             # <<<<<<<<<<<<<<
  *                 syms.append(f_words[f_j])
  *                 f = Phrase(syms)
  */
-  __pyx_t_4 = PyNumber_Add(__pyx_v_wc, __pyx_v_ntc); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2157; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_4 = PyNumber_Add(__pyx_v_wc, __pyx_v_ntc); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2173; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_4);
-  __pyx_t_2 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_self->max_length); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2157; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_self->max_length); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2173; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_1 = PyObject_RichCompare(__pyx_t_4, __pyx_t_2, Py_LT); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2157; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_RichCompare(__pyx_t_4, __pyx_t_2, Py_LT); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2173; __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_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2157; __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 = 2173; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   if (__pyx_t_6) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2158
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2174
  *             # Extend with word
  *             if wc + ntc < self.max_length:
  *                 syms.append(f_words[f_j])             # <<<<<<<<<<<<<<
  *                 f = Phrase(syms)
  *                 new_lex_i = min(lex_i, f_j)
  */
-    if (unlikely(!__pyx_cur_scope->__pyx_v_f_words)) { __Pyx_RaiseClosureNameError("f_words"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2158; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
-    __pyx_t_1 = PyObject_GetItem(__pyx_cur_scope->__pyx_v_f_words, __pyx_v_f_j); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2158; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (unlikely(!__pyx_cur_scope->__pyx_v_f_words)) { __Pyx_RaiseClosureNameError("f_words"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2174; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+    __pyx_t_1 = PyObject_GetItem(__pyx_cur_scope->__pyx_v_f_words, __pyx_v_f_j); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2174; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_2 = __Pyx_PyObject_Append(__pyx_v_syms, __pyx_t_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2158; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = __Pyx_PyObject_Append(__pyx_v_syms, __pyx_t_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2174; __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;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2159
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2175
  *             if wc + ntc < self.max_length:
  *                 syms.append(f_words[f_j])
  *                 f = Phrase(syms)             # <<<<<<<<<<<<<<
  *                 new_lex_i = min(lex_i, f_j)
  *                 new_lex_j = max(lex_j, f_j)
  */
-    __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2159; __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 = 2175; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_INCREF(__pyx_v_syms);
     PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_v_syms);
     __Pyx_GIVEREF(__pyx_v_syms);
-    __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_Phrase)), ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2159; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_Phrase)), ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2175; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
     __pyx_v_f = ((struct __pyx_obj_4cdec_2sa_3_sa_Phrase *)__pyx_t_1);
     __pyx_t_1 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2160
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2176
  *                 syms.append(f_words[f_j])
  *                 f = Phrase(syms)
  *                 new_lex_i = min(lex_i, f_j)             # <<<<<<<<<<<<<<
@@ -65569,8 +66224,8 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_13get_f_phras
     __pyx_t_1 = __pyx_v_f_j;
     __Pyx_INCREF(__pyx_v_lex_i);
     __pyx_t_2 = __pyx_v_lex_i;
-    __pyx_t_7 = PyObject_RichCompare(__pyx_t_1, __pyx_t_2, Py_LT); __Pyx_XGOTREF(__pyx_t_7); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2160; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_7); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2160; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_7 = PyObject_RichCompare(__pyx_t_1, __pyx_t_2, Py_LT); __Pyx_XGOTREF(__pyx_t_7); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2176; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_7); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2176; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
     if (__pyx_t_6) {
       __Pyx_INCREF(__pyx_t_1);
@@ -65587,7 +66242,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_13get_f_phras
     __pyx_v_new_lex_i = __pyx_t_1;
     __pyx_t_1 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2161
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2177
  *                 f = Phrase(syms)
  *                 new_lex_i = min(lex_i, f_j)
  *                 new_lex_j = max(lex_j, f_j)             # <<<<<<<<<<<<<<
@@ -65598,8 +66253,8 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_13get_f_phras
     __pyx_t_1 = __pyx_v_f_j;
     __Pyx_INCREF(__pyx_v_lex_j);
     __pyx_t_4 = __pyx_v_lex_j;
-    __pyx_t_7 = PyObject_RichCompare(__pyx_t_1, __pyx_t_4, Py_GT); __Pyx_XGOTREF(__pyx_t_7); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2161; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_7); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2161; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_7 = PyObject_RichCompare(__pyx_t_1, __pyx_t_4, Py_GT); __Pyx_XGOTREF(__pyx_t_7); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2177; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_7); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2177; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
     if (__pyx_t_6) {
       __Pyx_INCREF(__pyx_t_1);
@@ -65616,19 +66271,19 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_13get_f_phras
     __pyx_v_new_lex_j = __pyx_t_1;
     __pyx_t_1 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2162
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2178
  *                 new_lex_i = min(lex_i, f_j)
  *                 new_lex_j = max(lex_j, f_j)
  *                 phrases.add((f, new_lex_i, new_lex_j))             # <<<<<<<<<<<<<<
  *                 extract(f_i, f_j + 1, new_lex_i, new_lex_j, wc + 1, ntc, syms)
  *                 syms.pop()
  */
-    if (unlikely(!__pyx_cur_scope->__pyx_v_phrases)) { __Pyx_RaiseClosureNameError("phrases"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2162; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+    if (unlikely(!__pyx_cur_scope->__pyx_v_phrases)) { __Pyx_RaiseClosureNameError("phrases"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2178; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
     if (unlikely(((PyObject *)__pyx_cur_scope->__pyx_v_phrases) == Py_None)) {
       PyErr_Format(PyExc_AttributeError, "'NoneType' object has no attribute '%s'", "add");
-      {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2162; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2178; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     }
-    __pyx_t_1 = PyTuple_New(3); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2162; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyTuple_New(3); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2178; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_INCREF(((PyObject *)__pyx_v_f));
     PyTuple_SET_ITEM(__pyx_t_1, 0, ((PyObject *)__pyx_v_f));
@@ -65639,53 +66294,53 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_13get_f_phras
     __Pyx_INCREF(__pyx_v_new_lex_j);
     PyTuple_SET_ITEM(__pyx_t_1, 2, __pyx_v_new_lex_j);
     __Pyx_GIVEREF(__pyx_v_new_lex_j);
-    __pyx_t_8 = PySet_Add(__pyx_cur_scope->__pyx_v_phrases, ((PyObject *)__pyx_t_1)); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2162; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_8 = PySet_Add(__pyx_cur_scope->__pyx_v_phrases, ((PyObject *)__pyx_t_1)); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2178; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2163
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2179
  *                 new_lex_j = max(lex_j, f_j)
  *                 phrases.add((f, new_lex_i, new_lex_j))
  *                 extract(f_i, f_j + 1, new_lex_i, new_lex_j, wc + 1, ntc, syms)             # <<<<<<<<<<<<<<
  *                 syms.pop()
  *             # Extend with existing non-terminal
  */
-    __pyx_t_1 = PyNumber_Add(__pyx_v_f_j, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2163; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyNumber_Add(__pyx_v_f_j, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2179; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_2 = PyNumber_Add(__pyx_v_wc, __pyx_int_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2163; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyNumber_Add(__pyx_v_wc, __pyx_int_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2179; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    if (unlikely(!__pyx_cur_scope->__pyx_v_extract)) { __Pyx_RaiseClosureNameError("extract"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2163; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
-    __pyx_t_4 = __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_13get_f_phrases_extract(__pyx_cur_scope->__pyx_v_extract, __pyx_v_f_i, __pyx_t_1, __pyx_v_new_lex_i, __pyx_v_new_lex_j, __pyx_t_2, __pyx_v_ntc, __pyx_v_syms); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2163; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (unlikely(!__pyx_cur_scope->__pyx_v_extract)) { __Pyx_RaiseClosureNameError("extract"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2179; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+    __pyx_t_4 = __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_13get_f_phrases_extract(__pyx_cur_scope->__pyx_v_extract, __pyx_v_f_i, __pyx_t_1, __pyx_v_new_lex_i, __pyx_v_new_lex_j, __pyx_t_2, __pyx_v_ntc, __pyx_v_syms); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2179; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2164
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2180
  *                 phrases.add((f, new_lex_i, new_lex_j))
  *                 extract(f_i, f_j + 1, new_lex_i, new_lex_j, wc + 1, ntc, syms)
  *                 syms.pop()             # <<<<<<<<<<<<<<
  *             # Extend with existing non-terminal
  *             if syms and sym_isvar(syms[-1]):
  */
-    __pyx_t_4 = __Pyx_PyObject_Pop(__pyx_v_syms); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2164; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = __Pyx_PyObject_Pop(__pyx_v_syms); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2180; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     goto __pyx_L4;
   }
   __pyx_L4:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2166
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2182
  *                 syms.pop()
  *             # Extend with existing non-terminal
  *             if syms and sym_isvar(syms[-1]):             # <<<<<<<<<<<<<<
  *                 # Don't re-extract the same phrase
  *                 extract(f_i, f_j + 1, lex_i, lex_j, wc, ntc, syms)
  */
-  __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_v_syms); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2166; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_v_syms); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2182; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   if (__pyx_t_6) {
-    __pyx_t_4 = __Pyx_GetItemInt(__pyx_v_syms, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2166; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = __Pyx_GetItemInt(__pyx_v_syms, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2182; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_9 = __Pyx_PyInt_AsInt(__pyx_t_4); if (unlikely((__pyx_t_9 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2166; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_9 = __Pyx_PyInt_AsInt(__pyx_t_4); if (unlikely((__pyx_t_9 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2182; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     __pyx_t_3 = (__pyx_f_4cdec_2sa_3_sa_sym_isvar(__pyx_t_9) != 0);
   } else {
@@ -65693,17 +66348,17 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_13get_f_phras
   }
   if (__pyx_t_3) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2168
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2184
  *             if syms and sym_isvar(syms[-1]):
  *                 # Don't re-extract the same phrase
  *                 extract(f_i, f_j + 1, lex_i, lex_j, wc, ntc, syms)             # <<<<<<<<<<<<<<
  *             # Extend with new non-terminal
  *             if wc + ntc < self.max_length:
  */
-    __pyx_t_4 = PyNumber_Add(__pyx_v_f_j, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2168; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyNumber_Add(__pyx_v_f_j, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2184; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
-    if (unlikely(!__pyx_cur_scope->__pyx_v_extract)) { __Pyx_RaiseClosureNameError("extract"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2168; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
-    __pyx_t_2 = __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_13get_f_phrases_extract(__pyx_cur_scope->__pyx_v_extract, __pyx_v_f_i, __pyx_t_4, __pyx_v_lex_i, __pyx_v_lex_j, __pyx_v_wc, __pyx_v_ntc, __pyx_v_syms); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2168; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (unlikely(!__pyx_cur_scope->__pyx_v_extract)) { __Pyx_RaiseClosureNameError("extract"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2184; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+    __pyx_t_2 = __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_13get_f_phrases_extract(__pyx_cur_scope->__pyx_v_extract, __pyx_v_f_i, __pyx_t_4, __pyx_v_lex_i, __pyx_v_lex_j, __pyx_v_wc, __pyx_v_ntc, __pyx_v_syms); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2184; __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;
@@ -65711,44 +66366,44 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_13get_f_phras
   }
   __pyx_L5:;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2170
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2186
  *                 extract(f_i, f_j + 1, lex_i, lex_j, wc, ntc, syms)
  *             # Extend with new non-terminal
  *             if wc + ntc < self.max_length:             # <<<<<<<<<<<<<<
  *                 if not syms or (ntc < self.max_nonterminals and not sym_isvar(syms[-1])):
  *                     syms.append(sym_setindex(self.category, ntc + 1))
  */
-  __pyx_t_2 = PyNumber_Add(__pyx_v_wc, __pyx_v_ntc); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2170; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyNumber_Add(__pyx_v_wc, __pyx_v_ntc); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2186; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_4 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_self->max_length); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2170; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_4 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_self->max_length); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2186; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_4);
-  __pyx_t_1 = PyObject_RichCompare(__pyx_t_2, __pyx_t_4, Py_LT); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2170; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_RichCompare(__pyx_t_2, __pyx_t_4, Py_LT); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2186; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-  __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2170; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2186; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   if (__pyx_t_3) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2171
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2187
  *             # Extend with new non-terminal
  *             if wc + ntc < self.max_length:
  *                 if not syms or (ntc < self.max_nonterminals and not sym_isvar(syms[-1])):             # <<<<<<<<<<<<<<
  *                     syms.append(sym_setindex(self.category, ntc + 1))
  *                     f = Phrase(syms)
  */
-    __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_v_syms); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2171; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_v_syms); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2187; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __pyx_t_6 = (!__pyx_t_3);
     if (!__pyx_t_6) {
-      __pyx_t_1 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_self->max_nonterminals); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2171; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyInt_FromLong(__pyx_cur_scope->__pyx_v_self->max_nonterminals); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2187; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
-      __pyx_t_4 = PyObject_RichCompare(__pyx_v_ntc, __pyx_t_1, Py_LT); __Pyx_XGOTREF(__pyx_t_4); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2171; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyObject_RichCompare(__pyx_v_ntc, __pyx_t_1, Py_LT); __Pyx_XGOTREF(__pyx_t_4); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2187; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-      __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2171; __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[8]; __pyx_lineno = 2187; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       if (__pyx_t_3) {
-        __pyx_t_4 = __Pyx_GetItemInt(__pyx_v_syms, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2171; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_4 = __Pyx_GetItemInt(__pyx_v_syms, -1, sizeof(long), PyInt_FromLong, 0, 1, 1); if (!__pyx_t_4) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2187; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_4);
-        __pyx_t_9 = __Pyx_PyInt_AsInt(__pyx_t_4); if (unlikely((__pyx_t_9 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2171; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_9 = __Pyx_PyInt_AsInt(__pyx_t_4); if (unlikely((__pyx_t_9 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2187; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
         __pyx_t_5 = (!(__pyx_f_4cdec_2sa_3_sa_sym_isvar(__pyx_t_9) != 0));
         __pyx_t_10 = __pyx_t_5;
@@ -65761,67 +66416,67 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_13get_f_phras
     }
     if (__pyx_t_3) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2172
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2188
  *             if wc + ntc < self.max_length:
  *                 if not syms or (ntc < self.max_nonterminals and not sym_isvar(syms[-1])):
  *                     syms.append(sym_setindex(self.category, ntc + 1))             # <<<<<<<<<<<<<<
  *                     f = Phrase(syms)
  *                     if wc > 0:
  */
-      __pyx_t_4 = PyNumber_Add(__pyx_v_ntc, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2172; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyNumber_Add(__pyx_v_ntc, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2188; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_9 = __Pyx_PyInt_AsInt(__pyx_t_4); if (unlikely((__pyx_t_9 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2172; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_9 = __Pyx_PyInt_AsInt(__pyx_t_4); if (unlikely((__pyx_t_9 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2188; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-      __pyx_t_4 = PyInt_FromLong(__pyx_f_4cdec_2sa_3_sa_sym_setindex(__pyx_cur_scope->__pyx_v_self->category, __pyx_t_9)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2172; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyInt_FromLong(__pyx_f_4cdec_2sa_3_sa_sym_setindex(__pyx_cur_scope->__pyx_v_self->category, __pyx_t_9)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2188; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_1 = __Pyx_PyObject_Append(__pyx_v_syms, __pyx_t_4); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2172; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = __Pyx_PyObject_Append(__pyx_v_syms, __pyx_t_4); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2188; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2173
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2189
  *                 if not syms or (ntc < self.max_nonterminals and not sym_isvar(syms[-1])):
  *                     syms.append(sym_setindex(self.category, ntc + 1))
  *                     f = Phrase(syms)             # <<<<<<<<<<<<<<
  *                     if wc > 0:
  *                         phrases.add((f, lex_i, lex_j))
  */
-      __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2173; __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 = 2189; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
       __Pyx_INCREF(__pyx_v_syms);
       PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_v_syms);
       __Pyx_GIVEREF(__pyx_v_syms);
-      __pyx_t_4 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_Phrase)), ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2173; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_2sa_3_sa_Phrase)), ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2189; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
       __Pyx_XDECREF_SET(__pyx_v_f, ((struct __pyx_obj_4cdec_2sa_3_sa_Phrase *)__pyx_t_4));
       __pyx_t_4 = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2174
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2190
  *                     syms.append(sym_setindex(self.category, ntc + 1))
  *                     f = Phrase(syms)
  *                     if wc > 0:             # <<<<<<<<<<<<<<
  *                         phrases.add((f, lex_i, lex_j))
  *                     extract(f_i, f_j + 1, lex_i, lex_j, wc, ntc + 1, syms)
  */
-      __pyx_t_4 = PyObject_RichCompare(__pyx_v_wc, __pyx_int_0, Py_GT); __Pyx_XGOTREF(__pyx_t_4); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2174; __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[8]; __pyx_lineno = 2174; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyObject_RichCompare(__pyx_v_wc, __pyx_int_0, Py_GT); __Pyx_XGOTREF(__pyx_t_4); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2190; __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[8]; __pyx_lineno = 2190; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       if (__pyx_t_3) {
 
-        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2175
+        /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2191
  *                     f = Phrase(syms)
  *                     if wc > 0:
  *                         phrases.add((f, lex_i, lex_j))             # <<<<<<<<<<<<<<
  *                     extract(f_i, f_j + 1, lex_i, lex_j, wc, ntc + 1, syms)
  *                     syms.pop()
  */
-        if (unlikely(!__pyx_cur_scope->__pyx_v_phrases)) { __Pyx_RaiseClosureNameError("phrases"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2175; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+        if (unlikely(!__pyx_cur_scope->__pyx_v_phrases)) { __Pyx_RaiseClosureNameError("phrases"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2191; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
         if (unlikely(((PyObject *)__pyx_cur_scope->__pyx_v_phrases) == Py_None)) {
           PyErr_Format(PyExc_AttributeError, "'NoneType' object has no attribute '%s'", "add");
-          {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2175; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2191; __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 = 2175; __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 = 2191; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_4);
         __Pyx_INCREF(((PyObject *)__pyx_v_f));
         PyTuple_SET_ITEM(__pyx_t_4, 0, ((PyObject *)__pyx_v_f));
@@ -65832,38 +66487,38 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_13get_f_phras
         __Pyx_INCREF(__pyx_v_lex_j);
         PyTuple_SET_ITEM(__pyx_t_4, 2, __pyx_v_lex_j);
         __Pyx_GIVEREF(__pyx_v_lex_j);
-        __pyx_t_8 = PySet_Add(__pyx_cur_scope->__pyx_v_phrases, ((PyObject *)__pyx_t_4)); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2175; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_8 = PySet_Add(__pyx_cur_scope->__pyx_v_phrases, ((PyObject *)__pyx_t_4)); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2191; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
         goto __pyx_L8;
       }
       __pyx_L8:;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2176
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2192
  *                     if wc > 0:
  *                         phrases.add((f, lex_i, lex_j))
  *                     extract(f_i, f_j + 1, lex_i, lex_j, wc, ntc + 1, syms)             # <<<<<<<<<<<<<<
  *                     syms.pop()
  * 
  */
-      __pyx_t_4 = PyNumber_Add(__pyx_v_f_j, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2176; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyNumber_Add(__pyx_v_f_j, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2192; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_1 = PyNumber_Add(__pyx_v_ntc, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2176; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyNumber_Add(__pyx_v_ntc, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2192; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
-      if (unlikely(!__pyx_cur_scope->__pyx_v_extract)) { __Pyx_RaiseClosureNameError("extract"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2176; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
-      __pyx_t_2 = __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_13get_f_phrases_extract(__pyx_cur_scope->__pyx_v_extract, __pyx_v_f_i, __pyx_t_4, __pyx_v_lex_i, __pyx_v_lex_j, __pyx_v_wc, __pyx_t_1, __pyx_v_syms); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2176; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      if (unlikely(!__pyx_cur_scope->__pyx_v_extract)) { __Pyx_RaiseClosureNameError("extract"); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2192; __pyx_clineno = __LINE__; goto __pyx_L1_error;} }
+      __pyx_t_2 = __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_13get_f_phrases_extract(__pyx_cur_scope->__pyx_v_extract, __pyx_v_f_i, __pyx_t_4, __pyx_v_lex_i, __pyx_v_lex_j, __pyx_v_wc, __pyx_t_1, __pyx_v_syms); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2192; __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_1); __pyx_t_1 = 0;
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2177
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2193
  *                         phrases.add((f, lex_i, lex_j))
  *                     extract(f_i, f_j + 1, lex_i, lex_j, wc, ntc + 1, syms)
  *                     syms.pop()             # <<<<<<<<<<<<<<
  * 
  *         # Try to extract phrases from every f index
  */
-      __pyx_t_2 = __Pyx_PyObject_Pop(__pyx_v_syms); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2177; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = __Pyx_PyObject_Pop(__pyx_v_syms); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2193; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       goto __pyx_L7;
@@ -65891,7 +66546,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_13get_f_phras
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2147
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2163
  *     # (Used for EGivenFCoherent)
  *     # Return set of (fphrase, lex_i, lex_j)
  *     def get_f_phrases(self, f_words):             # <<<<<<<<<<<<<<
@@ -65928,7 +66583,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_33get_f_phras
   __Pyx_INCREF(__pyx_cur_scope->__pyx_v_f_words);
   __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_f_words);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2149
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2165
  *     def get_f_phrases(self, f_words):
  * 
  *         f_len = len(f_words)             # <<<<<<<<<<<<<<
@@ -65937,66 +66592,66 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_33get_f_phras
  */
   __pyx_t_1 = __pyx_cur_scope->__pyx_v_f_words;
   __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 = 2149; __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 = 2165; __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[8]; __pyx_lineno = 2149; __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 = 2165; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_GIVEREF(__pyx_t_1);
   __pyx_cur_scope->__pyx_v_f_len = __pyx_t_1;
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2150
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2166
  * 
  *         f_len = len(f_words)
  *         phrases = set() # (fphrase, lex_i, lex_j)             # <<<<<<<<<<<<<<
  * 
  *         def extract(f_i, f_j, lex_i, lex_j, wc, ntc, syms):
  */
-  __pyx_t_1 = PySet_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2150; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PySet_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2166; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_1));
   __Pyx_GIVEREF(((PyObject *)__pyx_t_1));
   __pyx_cur_scope->__pyx_v_phrases = ((PyObject*)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2152
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2168
  *         phrases = set() # (fphrase, lex_i, lex_j)
  * 
  *         def extract(f_i, f_j, lex_i, lex_j, wc, ntc, syms):             # <<<<<<<<<<<<<<
  *             # Phrase extraction limits
  *             if f_j > (f_len - 1) or (f_j - f_i) + 1 > self.max_initial_size:
  */
-  __pyx_t_1 = __Pyx_CyFunction_NewEx(&__pyx_mdef_4cdec_2sa_3_sa_23HieroCachingRuleFactory_13get_f_phrases_1extract, 0, __pyx_n_s_155, ((PyObject*)__pyx_cur_scope), __pyx_n_s_102, ((PyObject *)__pyx_k_codeobj_154)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2152; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_CyFunction_NewEx(&__pyx_mdef_4cdec_2sa_3_sa_23HieroCachingRuleFactory_13get_f_phrases_1extract, 0, __pyx_n_s_155, ((PyObject*)__pyx_cur_scope), __pyx_n_s_102, ((PyObject *)__pyx_k_codeobj_154)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2168; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_GIVEREF(__pyx_t_1);
   __pyx_cur_scope->__pyx_v_extract = __pyx_t_1;
   __pyx_t_1 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2180
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2196
  * 
  *         # Try to extract phrases from every f index
  *         for f_i from 0 <= f_i < f_len:             # <<<<<<<<<<<<<<
  *             extract(f_i, f_i, f_len, -1, 0, 0, [])
  * 
  */
-  __pyx_t_3 = __Pyx_PyInt_AsLong(__pyx_cur_scope->__pyx_v_f_len); if (unlikely((__pyx_t_3 == (long)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2180; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = __Pyx_PyInt_AsLong(__pyx_cur_scope->__pyx_v_f_len); if (unlikely((__pyx_t_3 == (long)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2196; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   for (__pyx_v_f_i = 0; __pyx_v_f_i < __pyx_t_3; __pyx_v_f_i++) {
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2181
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2197
  *         # Try to extract phrases from every f index
  *         for f_i from 0 <= f_i < f_len:
  *             extract(f_i, f_i, f_len, -1, 0, 0, [])             # <<<<<<<<<<<<<<
  * 
  *         return phrases
  */
-    __pyx_t_1 = PyInt_FromLong(__pyx_v_f_i); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2181; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyInt_FromLong(__pyx_v_f_i); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2197; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_4 = PyInt_FromLong(__pyx_v_f_i); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2181; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyInt_FromLong(__pyx_v_f_i); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2197; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __pyx_t_5 = __pyx_cur_scope->__pyx_v_f_len;
     __Pyx_INCREF(__pyx_t_5);
-    __pyx_t_6 = PyList_New(0); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2181; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = PyList_New(0); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2197; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
-    __pyx_t_7 = __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_13get_f_phrases_extract(__pyx_cur_scope->__pyx_v_extract, __pyx_t_1, __pyx_t_4, __pyx_t_5, __pyx_int_neg_1, __pyx_int_0, __pyx_int_0, ((PyObject *)__pyx_t_6)); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2181; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_7 = __pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_13get_f_phrases_extract(__pyx_cur_scope->__pyx_v_extract, __pyx_t_1, __pyx_t_4, __pyx_t_5, __pyx_int_neg_1, __pyx_int_0, __pyx_int_0, ((PyObject *)__pyx_t_6)); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2197; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_7);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
@@ -66005,7 +66660,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_33get_f_phras
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
   }
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2183
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2199
  *             extract(f_i, f_i, f_len, -1, 0, 0, [])
  * 
  *         return phrases             # <<<<<<<<<<<<<<
@@ -66048,7 +66703,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_36drop_ctx(Py
     static PyObject **__pyx_pyargnames[] = {&__pyx_n_s__ctx_name,0};
     PyObject* values[1] = {0};
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2186
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2202
  * 
  *     # Drop online stats for a context
  *     def drop_ctx(self, ctx_name=None):             # <<<<<<<<<<<<<<
@@ -66073,7 +66728,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_36drop_ctx(Py
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "drop_ctx") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2186; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "drop_ctx") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2202; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else {
       switch (PyTuple_GET_SIZE(__pyx_args)) {
@@ -66086,7 +66741,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_23HieroCachingRuleFactory_36drop_ctx(Py
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("drop_ctx", 0, 0, 1, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2186; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+  __Pyx_RaiseArgtupleInvalid("drop_ctx", 0, 0, 1, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2202; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_AddTraceback("cdec.sa._sa.HieroCachingRuleFactory.drop_ctx", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -66108,16 +66763,16 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_35drop_ctx(st
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("drop_ctx", 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2187
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2203
  *     # Drop online stats for a context
  *     def drop_ctx(self, ctx_name=None):
  *         self.online_stats.pop(ctx_name, None)             # <<<<<<<<<<<<<<
  * 
  * # Spans are _inclusive_ on both ends [i, j]
  */
-  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_self->online_stats, __pyx_n_s__pop); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2187; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_self->online_stats, __pyx_n_s__pop); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2203; __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 = 2187; __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 = 2203; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_INCREF(__pyx_v_ctx_name);
   PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_v_ctx_name);
@@ -66125,7 +66780,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_23HieroCachingRuleFactory_35drop_ctx(st
   __Pyx_INCREF(Py_None);
   PyTuple_SET_ITEM(__pyx_t_2, 1, Py_None);
   __Pyx_GIVEREF(Py_None);
-  __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 = 2187; __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 = 2203; __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;
@@ -66179,16 +66834,16 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_17span_check(PyObject *__pyx_self, PyOb
         case  1:
         if (likely((values[1] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__i)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("span_check", 1, 3, 3, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2190; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("span_check", 1, 3, 3, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2206; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
         case  2:
         if (likely((values[2] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__j)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("span_check", 1, 3, 3, 2); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2190; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("span_check", 1, 3, 3, 2); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2206; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "span_check") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2190; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "span_check") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2206; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else if (PyTuple_GET_SIZE(__pyx_args) != 3) {
       goto __pyx_L5_argtuple_error;
@@ -66203,7 +66858,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_17span_check(PyObject *__pyx_self, PyOb
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("span_check", 1, 3, 3, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2190; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+  __Pyx_RaiseArgtupleInvalid("span_check", 1, 3, 3, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2206; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_AddTraceback("cdec.sa._sa.span_check", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -66214,7 +66869,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_17span_check(PyObject *__pyx_self, PyOb
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2190
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2206
  * 
  * # Spans are _inclusive_ on both ends [i, j]
  * def span_check(vec, i, j):             # <<<<<<<<<<<<<<
@@ -66233,7 +66888,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_16span_check(CYTHON_UNUSED PyObject *__
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("span_check", 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2191
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2207
  * # Spans are _inclusive_ on both ends [i, j]
  * def span_check(vec, i, j):
  *     k = i             # <<<<<<<<<<<<<<
@@ -66243,7 +66898,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_16span_check(CYTHON_UNUSED PyObject *__
   __Pyx_INCREF(__pyx_v_i);
   __pyx_v_k = __pyx_v_i;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2192
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2208
  * def span_check(vec, i, j):
  *     k = i
  *     while k <= j:             # <<<<<<<<<<<<<<
@@ -66251,25 +66906,25 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_16span_check(CYTHON_UNUSED PyObject *__
  *             return False
  */
   while (1) {
-    __pyx_t_1 = PyObject_RichCompare(__pyx_v_k, __pyx_v_j, Py_LE); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2192; __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 = 2192; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyObject_RichCompare(__pyx_v_k, __pyx_v_j, Py_LE); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2208; __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 = 2208; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     if (!__pyx_t_2) break;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2193
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2209
  *     k = i
  *     while k <= j:
  *         if vec[k]:             # <<<<<<<<<<<<<<
  *             return False
  *         k += 1
  */
-    __pyx_t_1 = PyObject_GetItem(__pyx_v_vec, __pyx_v_k); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2193; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyObject_GetItem(__pyx_v_vec, __pyx_v_k); if (!__pyx_t_1) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2209; __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 = 2193; __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 = 2209; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     if (__pyx_t_2) {
 
-      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2194
+      /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2210
  *     while k <= j:
  *         if vec[k]:
  *             return False             # <<<<<<<<<<<<<<
@@ -66277,7 +66932,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_16span_check(CYTHON_UNUSED PyObject *__
  *     return True
  */
       __Pyx_XDECREF(__pyx_r);
-      __pyx_t_1 = __Pyx_PyBool_FromLong(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2194; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = __Pyx_PyBool_FromLong(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2210; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
       __pyx_r = __pyx_t_1;
       __pyx_t_1 = 0;
@@ -66286,20 +66941,20 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_16span_check(CYTHON_UNUSED PyObject *__
     }
     __pyx_L5:;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2195
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2211
  *         if vec[k]:
  *             return False
  *         k += 1             # <<<<<<<<<<<<<<
  *     return True
  * 
  */
-    __pyx_t_1 = PyNumber_InPlaceAdd(__pyx_v_k, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2195; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyNumber_InPlaceAdd(__pyx_v_k, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2211; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF_SET(__pyx_v_k, __pyx_t_1);
     __pyx_t_1 = 0;
   }
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2196
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2212
  *             return False
  *         k += 1
  *     return True             # <<<<<<<<<<<<<<
@@ -66307,7 +66962,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_16span_check(CYTHON_UNUSED PyObject *__
  * def span_inc(vec, i, j):
  */
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __Pyx_PyBool_FromLong(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2196; __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 = 2212; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_r = __pyx_t_1;
   __pyx_t_1 = 0;
@@ -66360,16 +67015,16 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_19span_inc(PyObject *__pyx_self, PyObje
         case  1:
         if (likely((values[1] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__i)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("span_inc", 1, 3, 3, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2198; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("span_inc", 1, 3, 3, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2214; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
         case  2:
         if (likely((values[2] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__j)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("span_inc", 1, 3, 3, 2); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2198; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("span_inc", 1, 3, 3, 2); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2214; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "span_inc") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2198; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "span_inc") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2214; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else if (PyTuple_GET_SIZE(__pyx_args) != 3) {
       goto __pyx_L5_argtuple_error;
@@ -66384,7 +67039,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_19span_inc(PyObject *__pyx_self, PyObje
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("span_inc", 1, 3, 3, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2198; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+  __Pyx_RaiseArgtupleInvalid("span_inc", 1, 3, 3, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2214; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_AddTraceback("cdec.sa._sa.span_inc", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -66395,7 +67050,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_19span_inc(PyObject *__pyx_self, PyObje
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2198
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2214
  *     return True
  * 
  * def span_inc(vec, i, j):             # <<<<<<<<<<<<<<
@@ -66416,7 +67071,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_18span_inc(CYTHON_UNUSED PyObject *__py
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("span_inc", 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2199
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2215
  * 
  * def span_inc(vec, i, j):
  *     k = i             # <<<<<<<<<<<<<<
@@ -66426,7 +67081,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_18span_inc(CYTHON_UNUSED PyObject *__py
   __Pyx_INCREF(__pyx_v_i);
   __pyx_v_k = __pyx_v_i;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2200
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2216
  * def span_inc(vec, i, j):
  *     k = i
  *     while k <= j:             # <<<<<<<<<<<<<<
@@ -66434,12 +67089,12 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_18span_inc(CYTHON_UNUSED PyObject *__py
  *         k += 1
  */
   while (1) {
-    __pyx_t_1 = PyObject_RichCompare(__pyx_v_k, __pyx_v_j, Py_LE); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2200; __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 = 2200; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyObject_RichCompare(__pyx_v_k, __pyx_v_j, Py_LE); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2216; __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 = 2216; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     if (!__pyx_t_2) break;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2201
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2217
  *     k = i
  *     while k <= j:
  *         vec[k] += 1             # <<<<<<<<<<<<<<
@@ -66448,23 +67103,23 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_18span_inc(CYTHON_UNUSED PyObject *__py
  */
     __Pyx_INCREF(__pyx_v_k);
     __pyx_t_1 = __pyx_v_k;
-    __pyx_t_3 = PyObject_GetItem(__pyx_v_vec, __pyx_t_1); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2201; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_GetItem(__pyx_v_vec, __pyx_t_1); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2217; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_4 = PyNumber_InPlaceAdd(__pyx_t_3, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2201; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyNumber_InPlaceAdd(__pyx_t_3, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2217; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    if (PyObject_SetItem(__pyx_v_vec, __pyx_t_1, __pyx_t_4) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2201; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (PyObject_SetItem(__pyx_v_vec, __pyx_t_1, __pyx_t_4) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2217; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2202
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2218
  *     while k <= j:
  *         vec[k] += 1
  *         k += 1             # <<<<<<<<<<<<<<
  * 
  * def span_dec(vec, i, j):
  */
-    __pyx_t_1 = PyNumber_InPlaceAdd(__pyx_v_k, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2202; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyNumber_InPlaceAdd(__pyx_v_k, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2218; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF_SET(__pyx_v_k, __pyx_t_1);
     __pyx_t_1 = 0;
@@ -66519,16 +67174,16 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_21span_dec(PyObject *__pyx_self, PyObje
         case  1:
         if (likely((values[1] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__i)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("span_dec", 1, 3, 3, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2204; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("span_dec", 1, 3, 3, 1); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2220; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
         case  2:
         if (likely((values[2] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__j)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("span_dec", 1, 3, 3, 2); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2204; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("span_dec", 1, 3, 3, 2); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2220; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "span_dec") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2204; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "span_dec") < 0)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2220; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
     } else if (PyTuple_GET_SIZE(__pyx_args) != 3) {
       goto __pyx_L5_argtuple_error;
@@ -66543,7 +67198,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_21span_dec(PyObject *__pyx_self, PyObje
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("span_dec", 1, 3, 3, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2204; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+  __Pyx_RaiseArgtupleInvalid("span_dec", 1, 3, 3, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2220; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_AddTraceback("cdec.sa._sa.span_dec", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -66554,7 +67209,7 @@ static PyObject *__pyx_pw_4cdec_2sa_3_sa_21span_dec(PyObject *__pyx_self, PyObje
   return __pyx_r;
 }
 
-/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2204
+/* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2220
  *         k += 1
  * 
  * def span_dec(vec, i, j):             # <<<<<<<<<<<<<<
@@ -66575,7 +67230,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_20span_dec(CYTHON_UNUSED PyObject *__py
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("span_dec", 0);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2205
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2221
  * 
  * def span_dec(vec, i, j):
  *     k = i             # <<<<<<<<<<<<<<
@@ -66585,7 +67240,7 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_20span_dec(CYTHON_UNUSED PyObject *__py
   __Pyx_INCREF(__pyx_v_i);
   __pyx_v_k = __pyx_v_i;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2206
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2222
  * def span_dec(vec, i, j):
  *     k = i
  *     while k <= j:             # <<<<<<<<<<<<<<
@@ -66593,12 +67248,12 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_20span_dec(CYTHON_UNUSED PyObject *__py
  *         k += 1
  */
   while (1) {
-    __pyx_t_1 = PyObject_RichCompare(__pyx_v_k, __pyx_v_j, Py_LE); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2206; __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 = 2206; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyObject_RichCompare(__pyx_v_k, __pyx_v_j, Py_LE); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2222; __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 = 2222; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     if (!__pyx_t_2) break;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2207
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2223
  *     k = i
  *     while k <= j:
  *         vec[k] -= 1             # <<<<<<<<<<<<<<
@@ -66606,21 +67261,21 @@ static PyObject *__pyx_pf_4cdec_2sa_3_sa_20span_dec(CYTHON_UNUSED PyObject *__py
  */
     __Pyx_INCREF(__pyx_v_k);
     __pyx_t_1 = __pyx_v_k;
-    __pyx_t_3 = PyObject_GetItem(__pyx_v_vec, __pyx_t_1); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2207; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_GetItem(__pyx_v_vec, __pyx_t_1); if (!__pyx_t_3) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2223; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_4 = PyNumber_InPlaceSubtract(__pyx_t_3, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2207; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyNumber_InPlaceSubtract(__pyx_t_3, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2223; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    if (PyObject_SetItem(__pyx_v_vec, __pyx_t_1, __pyx_t_4) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2207; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (PyObject_SetItem(__pyx_v_vec, __pyx_t_1, __pyx_t_4) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2223; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2208
+    /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2224
  *     while k <= j:
  *         vec[k] -= 1
  *         k += 1             # <<<<<<<<<<<<<<
  */
-    __pyx_t_1 = PyNumber_InPlaceAdd(__pyx_v_k, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2208; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyNumber_InPlaceAdd(__pyx_v_k, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2224; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF_SET(__pyx_v_k, __pyx_t_1);
     __pyx_t_1 = 0;
@@ -68288,6 +68943,7 @@ static PyObject *__pyx_tp_new_4cdec_2sa_3_sa_OnlineStats(PyTypeObject *t, CYTHON
   p->bilex_f = Py_None; Py_INCREF(Py_None);
   p->bilex_e = Py_None; Py_INCREF(Py_None);
   p->bilex_fe = Py_None; Py_INCREF(Py_None);
+  p->bilex_ef = Py_None; Py_INCREF(Py_None);
   if (unlikely(__pyx_pw_4cdec_2sa_3_sa_11OnlineStats_1__cinit__(o, __pyx_empty_tuple, NULL) < 0)) {
     Py_DECREF(o); o = 0;
   }
@@ -68305,6 +68961,7 @@ static void __pyx_tp_dealloc_4cdec_2sa_3_sa_OnlineStats(PyObject *o) {
   Py_CLEAR(p->bilex_f);
   Py_CLEAR(p->bilex_e);
   Py_CLEAR(p->bilex_fe);
+  Py_CLEAR(p->bilex_ef);
   (*Py_TYPE(o)->tp_free)(o);
 }
 
@@ -68335,6 +68992,9 @@ static int __pyx_tp_traverse_4cdec_2sa_3_sa_OnlineStats(PyObject *o, visitproc v
   if (p->bilex_fe) {
     e = (*v)(p->bilex_fe, a); if (e) return e;
   }
+  if (p->bilex_ef) {
+    e = (*v)(p->bilex_ef, a); if (e) return e;
+  }
   return 0;
 }
 
@@ -68365,6 +69025,9 @@ static int __pyx_tp_clear_4cdec_2sa_3_sa_OnlineStats(PyObject *o) {
   tmp = ((PyObject*)p->bilex_fe);
   p->bilex_fe = Py_None; Py_INCREF(Py_None);
   Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->bilex_ef);
+  p->bilex_ef = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
   return 0;
 }
 
@@ -68472,6 +69135,19 @@ static int __pyx_setprop_4cdec_2sa_3_sa_11OnlineStats_bilex_fe(PyObject *o, PyOb
   }
 }
 
+static PyObject *__pyx_getprop_4cdec_2sa_3_sa_11OnlineStats_bilex_ef(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_4cdec_2sa_3_sa_11OnlineStats_8bilex_ef_1__get__(o);
+}
+
+static int __pyx_setprop_4cdec_2sa_3_sa_11OnlineStats_bilex_ef(PyObject *o, PyObject *v, CYTHON_UNUSED void *x) {
+  if (v) {
+    return __pyx_pw_4cdec_2sa_3_sa_11OnlineStats_8bilex_ef_3__set__(o, v);
+  }
+  else {
+    return __pyx_pw_4cdec_2sa_3_sa_11OnlineStats_8bilex_ef_5__del__(o);
+  }
+}
+
 static PyMethodDef __pyx_methods_4cdec_2sa_3_sa_OnlineStats[] = {
   {0, 0, 0, 0}
 };
@@ -68485,6 +69161,7 @@ static struct PyGetSetDef __pyx_getsets_4cdec_2sa_3_sa_OnlineStats[] = {
   {(char *)"bilex_f", __pyx_getprop_4cdec_2sa_3_sa_11OnlineStats_bilex_f, __pyx_setprop_4cdec_2sa_3_sa_11OnlineStats_bilex_f, 0, 0},
   {(char *)"bilex_e", __pyx_getprop_4cdec_2sa_3_sa_11OnlineStats_bilex_e, __pyx_setprop_4cdec_2sa_3_sa_11OnlineStats_bilex_e, 0, 0},
   {(char *)"bilex_fe", __pyx_getprop_4cdec_2sa_3_sa_11OnlineStats_bilex_fe, __pyx_setprop_4cdec_2sa_3_sa_11OnlineStats_bilex_fe, 0, 0},
+  {(char *)"bilex_ef", __pyx_getprop_4cdec_2sa_3_sa_11OnlineStats_bilex_ef, __pyx_setprop_4cdec_2sa_3_sa_11OnlineStats_bilex_ef, 0, 0},
   {0, 0, 0, 0, 0}
 };
 
@@ -75483,6 +76160,7 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_n_s__arr_high, __pyx_k__arr_high, sizeof(__pyx_k__arr_high), 0, 0, 1, 1},
   {&__pyx_n_s__arr_low, __pyx_k__arr_low, sizeof(__pyx_k__arr_low), 0, 0, 1, 1},
   {&__pyx_n_s__bilex_e, __pyx_k__bilex_e, sizeof(__pyx_k__bilex_e), 0, 0, 1, 1},
+  {&__pyx_n_s__bilex_ef, __pyx_k__bilex_ef, sizeof(__pyx_k__bilex_ef), 0, 0, 1, 1},
   {&__pyx_n_s__bilex_f, __pyx_k__bilex_f, sizeof(__pyx_k__bilex_f), 0, 0, 1, 1},
   {&__pyx_n_s__bilex_fe, __pyx_k__bilex_fe, sizeof(__pyx_k__bilex_fe), 0, 0, 1, 1},
   {&__pyx_n_s__by_slack_factor, __pyx_k__by_slack_factor, sizeof(__pyx_k__by_slack_factor), 0, 0, 1, 1},
@@ -75719,8 +76397,8 @@ static int __Pyx_InitCachedBuiltins(void) {
   __pyx_builtin_zip = __Pyx_GetBuiltinName(__pyx_n_s__zip); if (!__pyx_builtin_zip) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 371; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_builtin_StopIteration = __Pyx_GetBuiltinName(__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_GetBuiltinName(__pyx_n_s__cmp); if (!__pyx_builtin_cmp) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 172; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_builtin_sorted = __Pyx_GetBuiltinName(__pyx_n_s__sorted); if (!__pyx_builtin_sorted) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 976; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_builtin_max = __Pyx_GetBuiltinName(__pyx_n_s__max); if (!__pyx_builtin_max) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1153; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_builtin_sorted = __Pyx_GetBuiltinName(__pyx_n_s__sorted); if (!__pyx_builtin_sorted) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 979; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_builtin_max = __Pyx_GetBuiltinName(__pyx_n_s__max); if (!__pyx_builtin_max) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1156; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   return 0;
   __pyx_L1_error:;
   return -1;
@@ -76235,106 +76913,106 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_k_tuple_100);
   __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_100));
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":144
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":147
  *             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_106 = PyTuple_Pack(1, ((PyObject *)__pyx_kp_s_105)); if (unlikely(!__pyx_k_tuple_106)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 144; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_k_tuple_106 = PyTuple_Pack(1, ((PyObject *)__pyx_kp_s_105)); if (unlikely(!__pyx_k_tuple_106)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 147; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_k_tuple_106);
   __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_106));
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":357
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":360
  *         self.rules.root = ExtendedTrieNode(phrase_location=PhraseLocation())
  *         if alignment is None:
  *             raise Exception("Must specify an alignment object")             # <<<<<<<<<<<<<<
  *         self.alignment = alignment
  * 
  */
-  __pyx_k_tuple_111 = PyTuple_Pack(1, ((PyObject *)__pyx_kp_s_110)); if (unlikely(!__pyx_k_tuple_111)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 357; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_k_tuple_111 = PyTuple_Pack(1, ((PyObject *)__pyx_kp_s_110)); if (unlikely(!__pyx_k_tuple_111)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 360; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_k_tuple_111);
   __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_111));
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1069
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1072
  *                         else:
  *                             #ERROR: We never get here
  *                             raise Exception("Keyword trie error")             # <<<<<<<<<<<<<<
  *                 # checking whether lookup_required
  *                 if lookup_required:
  */
-  __pyx_k_tuple_127 = PyTuple_Pack(1, ((PyObject *)__pyx_kp_s_126)); if (unlikely(!__pyx_k_tuple_127)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1069; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_k_tuple_127 = PyTuple_Pack(1, ((PyObject *)__pyx_kp_s_126)); if (unlikely(!__pyx_k_tuple_127)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1072; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_k_tuple_127);
   __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_127));
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1988
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1991
  *             if nt and nt[-1][2] == f_j - 1:
  *                 # Add to non-terminal, checking for collisions
  *                 old_last_nt = nt[-1][:]             # <<<<<<<<<<<<<<
  *                 nt[-1][2] = f_j
  *                 if link_i < nt[-1][3]:
  */
-  __pyx_k_slice_141 = PySlice_New(Py_None, Py_None, Py_None); if (unlikely(!__pyx_k_slice_141)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1988; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_k_slice_141 = PySlice_New(Py_None, Py_None, Py_None); if (unlikely(!__pyx_k_slice_141)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1991; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_k_slice_141);
   __Pyx_GIVEREF(__pyx_k_slice_141);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1925
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":1928
  *         # f_ i and j are current, e_ i and j are previous
  *         # We care _considering_ f_j, so it is not yet in counts
  *         def extract(f_i, f_j, e_i, e_j, min_bound, wc, links, nt, nt_open):             # <<<<<<<<<<<<<<
  *             # Phrase extraction limits
  *             if f_j > (f_len - 1) or (f_j - f_i) + 1 > self.max_initial_size:
  */
-  __pyx_k_tuple_142 = PyTuple_Pack(19, ((PyObject *)__pyx_n_s__f_i), ((PyObject *)__pyx_n_s__f_j), ((PyObject *)__pyx_n_s__e_i), ((PyObject *)__pyx_n_s__e_j), ((PyObject *)__pyx_n_s__min_bound), ((PyObject *)__pyx_n_s__wc), ((PyObject *)__pyx_n_s__links), ((PyObject *)__pyx_n_s__nt), ((PyObject *)__pyx_n_s__nt_open), ((PyObject *)__pyx_n_s__link_i), ((PyObject *)__pyx_n_s__link_j), ((PyObject *)__pyx_n_s__new_e_i), ((PyObject *)__pyx_n_s__new_e_j), ((PyObject *)__pyx_n_s__new_min_bound), ((PyObject *)__pyx_n_s__i), ((PyObject *)__pyx_n_s__nt_collision), ((PyObject *)__pyx_n_s__link), ((PyObject *)__pyx_n_s__plus_links), ((PyObject *)__pyx_n_s__old_last_nt)); if (unlikely(!__pyx_k_tuple_142)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1925; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_k_tuple_142 = PyTuple_Pack(19, ((PyObject *)__pyx_n_s__f_i), ((PyObject *)__pyx_n_s__f_j), ((PyObject *)__pyx_n_s__e_i), ((PyObject *)__pyx_n_s__e_j), ((PyObject *)__pyx_n_s__min_bound), ((PyObject *)__pyx_n_s__wc), ((PyObject *)__pyx_n_s__links), ((PyObject *)__pyx_n_s__nt), ((PyObject *)__pyx_n_s__nt_open), ((PyObject *)__pyx_n_s__link_i), ((PyObject *)__pyx_n_s__link_j), ((PyObject *)__pyx_n_s__new_e_i), ((PyObject *)__pyx_n_s__new_e_j), ((PyObject *)__pyx_n_s__new_min_bound), ((PyObject *)__pyx_n_s__i), ((PyObject *)__pyx_n_s__nt_collision), ((PyObject *)__pyx_n_s__link), ((PyObject *)__pyx_n_s__plus_links), ((PyObject *)__pyx_n_s__old_last_nt)); if (unlikely(!__pyx_k_tuple_142)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1928; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_k_tuple_142);
   __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_142));
-  __pyx_k_codeobj_143 = (PyObject*)__Pyx_PyCode_New(9, 0, 19, 0, 0, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_k_tuple_142, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_144, __pyx_n_s__extract, 1925, __pyx_empty_bytes); if (unlikely(!__pyx_k_codeobj_143)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1925; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_k_codeobj_143 = (PyObject*)__Pyx_PyCode_New(9, 0, 19, 0, 0, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_k_tuple_142, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_144, __pyx_n_s__extract, 1928, __pyx_empty_bytes); if (unlikely(!__pyx_k_codeobj_143)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1928; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2047
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2050
  *         # Update phrase counts
  *         for rule in rules:
  *             (f_ph, e_ph, al) = rule[:3]             # <<<<<<<<<<<<<<
  *             stats.phrases_f[f_ph] += 1
  *             stats.phrases_e[e_ph] += 1
  */
-  __pyx_k_slice_146 = PySlice_New(Py_None, __pyx_int_3, Py_None); if (unlikely(!__pyx_k_slice_146)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2047; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_k_slice_146 = PySlice_New(Py_None, __pyx_int_3, Py_None); if (unlikely(!__pyx_k_slice_146)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2050; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_k_slice_146);
   __Pyx_GIVEREF(__pyx_k_slice_146);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2067
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2083
  *         # Substitute in non-terminals
  *         nt_inv = sorted(nt, cmp=lambda x, y: cmp(x[3], y[3]))
  *         f_sym = list(f_span[:])             # <<<<<<<<<<<<<<
  *         off = f_i
  *         for next_nt in nt:
  */
-  __pyx_k_slice_148 = PySlice_New(Py_None, Py_None, Py_None); if (unlikely(!__pyx_k_slice_148)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2067; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_k_slice_148 = PySlice_New(Py_None, Py_None, Py_None); if (unlikely(!__pyx_k_slice_148)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2083; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_k_slice_148);
   __Pyx_GIVEREF(__pyx_k_slice_148);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2077
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2093
  *             f_sym.insert(next_nt[1] - off, sym_setindex(self.category, next_nt[0]))
  *             off += (nt_len - 1)
  *         e_sym = list(e_span[:])             # <<<<<<<<<<<<<<
  *         off = e_i
  *         for next_nt in nt_inv:
  */
-  __pyx_k_slice_149 = PySlice_New(Py_None, Py_None, Py_None); if (unlikely(!__pyx_k_slice_149)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2077; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_k_slice_149 = PySlice_New(Py_None, Py_None, Py_None); if (unlikely(!__pyx_k_slice_149)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2093; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_k_slice_149);
   __Pyx_GIVEREF(__pyx_k_slice_149);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2152
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2168
  *         phrases = set() # (fphrase, lex_i, lex_j)
  * 
  *         def extract(f_i, f_j, lex_i, lex_j, wc, ntc, syms):             # <<<<<<<<<<<<<<
  *             # Phrase extraction limits
  *             if f_j > (f_len - 1) or (f_j - f_i) + 1 > self.max_initial_size:
  */
-  __pyx_k_tuple_153 = PyTuple_Pack(10, ((PyObject *)__pyx_n_s__f_i), ((PyObject *)__pyx_n_s__f_j), ((PyObject *)__pyx_n_s__lex_i), ((PyObject *)__pyx_n_s__lex_j), ((PyObject *)__pyx_n_s__wc), ((PyObject *)__pyx_n_s__ntc), ((PyObject *)__pyx_n_s__syms), ((PyObject *)__pyx_n_s__f), ((PyObject *)__pyx_n_s__new_lex_i), ((PyObject *)__pyx_n_s__new_lex_j)); if (unlikely(!__pyx_k_tuple_153)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2152; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_k_tuple_153 = PyTuple_Pack(10, ((PyObject *)__pyx_n_s__f_i), ((PyObject *)__pyx_n_s__f_j), ((PyObject *)__pyx_n_s__lex_i), ((PyObject *)__pyx_n_s__lex_j), ((PyObject *)__pyx_n_s__wc), ((PyObject *)__pyx_n_s__ntc), ((PyObject *)__pyx_n_s__syms), ((PyObject *)__pyx_n_s__f), ((PyObject *)__pyx_n_s__new_lex_i), ((PyObject *)__pyx_n_s__new_lex_j)); if (unlikely(!__pyx_k_tuple_153)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2168; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_k_tuple_153);
   __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_153));
-  __pyx_k_codeobj_154 = (PyObject*)__Pyx_PyCode_New(7, 0, 10, 0, 0, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_k_tuple_153, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_144, __pyx_n_s__extract, 2152, __pyx_empty_bytes); if (unlikely(!__pyx_k_codeobj_154)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2152; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_k_codeobj_154 = (PyObject*)__Pyx_PyCode_New(7, 0, 10, 0, 0, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_k_tuple_153, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_144, __pyx_n_s__extract, 2168, __pyx_empty_bytes); if (unlikely(!__pyx_k_codeobj_154)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2168; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
   /* "cdec/sa/_sa.pyx":5
  * import gzip
@@ -76439,41 +77117,41 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_174));
   __pyx_k_codeobj_175 = (PyObject*)__Pyx_PyCode_New(1, 0, 3, 0, 0, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_k_tuple_174, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_165, __pyx_n_s__decode_words, 124, __pyx_empty_bytes); if (unlikely(!__pyx_k_codeobj_175)) {__pyx_filename = __pyx_f[10]; __pyx_lineno = 124; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2190
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2206
  * 
  * # Spans are _inclusive_ on both ends [i, j]
  * def span_check(vec, i, j):             # <<<<<<<<<<<<<<
  *     k = i
  *     while k <= j:
  */
-  __pyx_k_tuple_177 = PyTuple_Pack(4, ((PyObject *)__pyx_n_s__vec), ((PyObject *)__pyx_n_s__i), ((PyObject *)__pyx_n_s__j), ((PyObject *)__pyx_n_s__k)); if (unlikely(!__pyx_k_tuple_177)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2190; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_k_tuple_177 = PyTuple_Pack(4, ((PyObject *)__pyx_n_s__vec), ((PyObject *)__pyx_n_s__i), ((PyObject *)__pyx_n_s__j), ((PyObject *)__pyx_n_s__k)); if (unlikely(!__pyx_k_tuple_177)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2206; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_k_tuple_177);
   __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_177));
-  __pyx_k_codeobj_178 = (PyObject*)__Pyx_PyCode_New(3, 0, 4, 0, 0, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_k_tuple_177, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_144, __pyx_n_s__span_check, 2190, __pyx_empty_bytes); if (unlikely(!__pyx_k_codeobj_178)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2190; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_k_codeobj_178 = (PyObject*)__Pyx_PyCode_New(3, 0, 4, 0, 0, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_k_tuple_177, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_144, __pyx_n_s__span_check, 2206, __pyx_empty_bytes); if (unlikely(!__pyx_k_codeobj_178)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2206; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2198
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2214
  *     return True
  * 
  * def span_inc(vec, i, j):             # <<<<<<<<<<<<<<
  *     k = i
  *     while k <= j:
  */
-  __pyx_k_tuple_179 = PyTuple_Pack(4, ((PyObject *)__pyx_n_s__vec), ((PyObject *)__pyx_n_s__i), ((PyObject *)__pyx_n_s__j), ((PyObject *)__pyx_n_s__k)); if (unlikely(!__pyx_k_tuple_179)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2198; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_k_tuple_179 = PyTuple_Pack(4, ((PyObject *)__pyx_n_s__vec), ((PyObject *)__pyx_n_s__i), ((PyObject *)__pyx_n_s__j), ((PyObject *)__pyx_n_s__k)); if (unlikely(!__pyx_k_tuple_179)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2214; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_k_tuple_179);
   __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_179));
-  __pyx_k_codeobj_180 = (PyObject*)__Pyx_PyCode_New(3, 0, 4, 0, 0, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_k_tuple_179, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_144, __pyx_n_s__span_inc, 2198, __pyx_empty_bytes); if (unlikely(!__pyx_k_codeobj_180)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2198; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_k_codeobj_180 = (PyObject*)__Pyx_PyCode_New(3, 0, 4, 0, 0, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_k_tuple_179, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_144, __pyx_n_s__span_inc, 2214, __pyx_empty_bytes); if (unlikely(!__pyx_k_codeobj_180)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2214; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2204
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2220
  *         k += 1
  * 
  * def span_dec(vec, i, j):             # <<<<<<<<<<<<<<
  *     k = i
  *     while k <= j:
  */
-  __pyx_k_tuple_181 = PyTuple_Pack(4, ((PyObject *)__pyx_n_s__vec), ((PyObject *)__pyx_n_s__i), ((PyObject *)__pyx_n_s__j), ((PyObject *)__pyx_n_s__k)); if (unlikely(!__pyx_k_tuple_181)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2204; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_k_tuple_181 = PyTuple_Pack(4, ((PyObject *)__pyx_n_s__vec), ((PyObject *)__pyx_n_s__i), ((PyObject *)__pyx_n_s__j), ((PyObject *)__pyx_n_s__k)); if (unlikely(!__pyx_k_tuple_181)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2220; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_k_tuple_181);
   __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_181));
-  __pyx_k_codeobj_182 = (PyObject*)__Pyx_PyCode_New(3, 0, 4, 0, 0, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_k_tuple_181, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_144, __pyx_n_s__span_dec, 2204, __pyx_empty_bytes); if (unlikely(!__pyx_k_codeobj_182)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2204; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_k_codeobj_182 = (PyObject*)__Pyx_PyCode_New(3, 0, 4, 0, 0, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_k_tuple_181, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_144, __pyx_n_s__span_dec, 2220, __pyx_empty_bytes); if (unlikely(!__pyx_k_codeobj_182)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2220; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_RefNannyFinishContext();
   return 0;
   __pyx_L1_error:;
@@ -76600,15 +77278,15 @@ PyMODINIT_FUNC PyInit__sa(void)
   __pyx_ptype_4cdec_2sa_3_sa_SuffixArray = &__pyx_type_4cdec_2sa_3_sa_SuffixArray;
   if (PyType_Ready(&__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_4_make_lattice) < 0) {__pyx_filename = __pyx_f[10]; __pyx_lineno = 110; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_ptype_4cdec_2sa_3_sa___pyx_scope_struct_4_make_lattice = &__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_4_make_lattice;
-  if (PyType_Ready(&__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_24_fmt_rule) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2128; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyType_Ready(&__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_24_fmt_rule) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2144; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_ptype_4cdec_2sa_3_sa___pyx_scope_struct_24_fmt_rule = &__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_24_fmt_rule;
   if (PyType_Ready(&__pyx_type_4cdec_2sa_3_sa_LCP) < 0) {__pyx_filename = __pyx_f[9]; __pyx_lineno = 5; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   if (__Pyx_SetAttrString(__pyx_m, "LCP", (PyObject *)&__pyx_type_4cdec_2sa_3_sa_LCP) < 0) {__pyx_filename = __pyx_f[9]; __pyx_lineno = 5; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_ptype_4cdec_2sa_3_sa_LCP = &__pyx_type_4cdec_2sa_3_sa_LCP;
   if (PyType_Ready(&__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_17_genexpr) < 0) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 186; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_ptype_4cdec_2sa_3_sa___pyx_scope_struct_17_genexpr = &__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_17_genexpr;
-  if (PyType_Ready(&__pyx_type_4cdec_2sa_3_sa_OnlineStats) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 39; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (__Pyx_SetAttrString(__pyx_m, "OnlineStats", (PyObject *)&__pyx_type_4cdec_2sa_3_sa_OnlineStats) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 39; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyType_Ready(&__pyx_type_4cdec_2sa_3_sa_OnlineStats) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 40; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetAttrString(__pyx_m, "OnlineStats", (PyObject *)&__pyx_type_4cdec_2sa_3_sa_OnlineStats) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 40; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_ptype_4cdec_2sa_3_sa_OnlineStats = &__pyx_type_4cdec_2sa_3_sa_OnlineStats;
   __pyx_vtabptr_4cdec_2sa_3_sa_IntList = &__pyx_vtable_4cdec_2sa_3_sa_IntList;
   __pyx_vtable_4cdec_2sa_3_sa_IntList.set = (void (*)(struct __pyx_obj_4cdec_2sa_3_sa_IntList *, int, int))__pyx_f_4cdec_2sa_3_sa_7IntList_set;
@@ -76629,8 +77307,8 @@ PyMODINIT_FUNC PyInit__sa(void)
   if (__Pyx_SetVtable(__pyx_type_4cdec_2sa_3_sa_Phrase.tp_dict, __pyx_vtabptr_4cdec_2sa_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_4cdec_2sa_3_sa_Phrase) < 0) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 4; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_ptype_4cdec_2sa_3_sa_Phrase = &__pyx_type_4cdec_2sa_3_sa_Phrase;
-  if (PyType_Ready(&__pyx_type_4cdec_2sa_3_sa_TrieNode) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 71; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (__Pyx_SetAttrString(__pyx_m, "TrieNode", (PyObject *)&__pyx_type_4cdec_2sa_3_sa_TrieNode) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 71; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyType_Ready(&__pyx_type_4cdec_2sa_3_sa_TrieNode) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 74; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetAttrString(__pyx_m, "TrieNode", (PyObject *)&__pyx_type_4cdec_2sa_3_sa_TrieNode) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 74; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_ptype_4cdec_2sa_3_sa_TrieNode = &__pyx_type_4cdec_2sa_3_sa_TrieNode;
   if (PyType_Ready(&__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_2_genexpr) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 74; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_ptype_4cdec_2sa_3_sa___pyx_scope_struct_2_genexpr = &__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_2_genexpr;
@@ -76638,11 +77316,11 @@ PyMODINIT_FUNC PyInit__sa(void)
   __pyx_ptype_4cdec_2sa_3_sa___pyx_scope_struct_1_read_bitext = &__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_1_read_bitext;
   if (PyType_Ready(&__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_29_genexpr) < 0) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 21; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_ptype_4cdec_2sa_3_sa___pyx_scope_struct_29_genexpr = &__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_29_genexpr;
-  if (PyType_Ready(&__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_26_get_f_phrases) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2147; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyType_Ready(&__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_26_get_f_phrases) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2163; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_ptype_4cdec_2sa_3_sa___pyx_scope_struct_26_get_f_phrases = &__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_26_get_f_phrases;
   __pyx_type_4cdec_2sa_3_sa_ExtendedTrieNode.tp_base = __pyx_ptype_4cdec_2sa_3_sa_TrieNode;
-  if (PyType_Ready(&__pyx_type_4cdec_2sa_3_sa_ExtendedTrieNode) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 77; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (__Pyx_SetAttrString(__pyx_m, "ExtendedTrieNode", (PyObject *)&__pyx_type_4cdec_2sa_3_sa_ExtendedTrieNode) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 77; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyType_Ready(&__pyx_type_4cdec_2sa_3_sa_ExtendedTrieNode) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 80; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetAttrString(__pyx_m, "ExtendedTrieNode", (PyObject *)&__pyx_type_4cdec_2sa_3_sa_ExtendedTrieNode) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 80; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_ptype_4cdec_2sa_3_sa_ExtendedTrieNode = &__pyx_type_4cdec_2sa_3_sa_ExtendedTrieNode;
   __pyx_vtabptr_4cdec_2sa_3_sa_Alignment = &__pyx_vtable_4cdec_2sa_3_sa_Alignment;
   __pyx_vtable_4cdec_2sa_3_sa_Alignment.link = (int (*)(struct __pyx_obj_4cdec_2sa_3_sa_Alignment *, int, int))__pyx_f_4cdec_2sa_3_sa_9Alignment_link;
@@ -76652,16 +77330,16 @@ PyMODINIT_FUNC PyInit__sa(void)
   if (__Pyx_SetVtable(__pyx_type_4cdec_2sa_3_sa_Alignment.tp_dict, __pyx_vtabptr_4cdec_2sa_3_sa_Alignment) < 0) {__pyx_filename = __pyx_f[4]; __pyx_lineno = 10; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   if (__Pyx_SetAttrString(__pyx_m, "Alignment", (PyObject *)&__pyx_type_4cdec_2sa_3_sa_Alignment) < 0) {__pyx_filename = __pyx_f[4]; __pyx_lineno = 10; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_ptype_4cdec_2sa_3_sa_Alignment = &__pyx_type_4cdec_2sa_3_sa_Alignment;
-  if (PyType_Ready(&__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_19_input) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 978; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyType_Ready(&__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_19_input) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 981; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_ptype_4cdec_2sa_3_sa___pyx_scope_struct_19_input = &__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_19_input;
   if (PyType_Ready(&__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_13_decode_words) < 0) {__pyx_filename = __pyx_f[10]; __pyx_lineno = 124; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_ptype_4cdec_2sa_3_sa___pyx_scope_struct_13_decode_words = &__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_13_decode_words;
-  if (PyType_Ready(&__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_23_genexpr) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2124; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyType_Ready(&__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_23_genexpr) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2140; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_ptype_4cdec_2sa_3_sa___pyx_scope_struct_23_genexpr = &__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_23_genexpr;
   if (PyType_Ready(&__pyx_type_4cdec_2sa_3_sa_Rule) < 0) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 158; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   if (__Pyx_SetAttrString(__pyx_m, "Rule", (PyObject *)&__pyx_type_4cdec_2sa_3_sa_Rule) < 0) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 158; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_ptype_4cdec_2sa_3_sa_Rule = &__pyx_type_4cdec_2sa_3_sa_Rule;
-  if (PyType_Ready(&__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_20_genexpr) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1193; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyType_Ready(&__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_20_genexpr) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1196; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_ptype_4cdec_2sa_3_sa___pyx_scope_struct_20_genexpr = &__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_20_genexpr;
   __pyx_vtabptr_4cdec_2sa_3_sa_Precomputation = &__pyx_vtable_4cdec_2sa_3_sa_Precomputation;
   __pyx_vtable_4cdec_2sa_3_sa_Precomputation.read_map = (PyObject *(*)(struct __pyx_obj_4cdec_2sa_3_sa_Precomputation *, FILE *))__pyx_f_4cdec_2sa_3_sa_14Precomputation_read_map;
@@ -76672,7 +77350,7 @@ PyMODINIT_FUNC PyInit__sa(void)
   __pyx_ptype_4cdec_2sa_3_sa_Precomputation = &__pyx_type_4cdec_2sa_3_sa_Precomputation;
   if (PyType_Ready(&__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_27___iter__) < 0) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 15; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_ptype_4cdec_2sa_3_sa___pyx_scope_struct_27___iter__ = &__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_27___iter__;
-  if (PyType_Ready(&__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_21_add_instance) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1891; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyType_Ready(&__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_21_add_instance) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 1894; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_ptype_4cdec_2sa_3_sa___pyx_scope_struct_21_add_instance = &__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_21_add_instance;
   __pyx_vtabptr_4cdec_2sa_3_sa_TrieMap = &__pyx_vtable_4cdec_2sa_3_sa_TrieMap;
   __pyx_vtable_4cdec_2sa_3_sa_TrieMap._insert = (struct __pyx_t_4cdec_2sa_3_sa__Trie_Node *(*)(struct __pyx_obj_4cdec_2sa_3_sa_TrieMap *, int *, int))__pyx_f_4cdec_2sa_3_sa_7TrieMap__insert;
@@ -76707,18 +77385,18 @@ PyMODINIT_FUNC PyInit__sa(void)
   __pyx_ptype_4cdec_2sa_3_sa___pyx_scope_struct_15___iter__ = &__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_15___iter__;
   if (PyType_Ready(&__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_16___str__) < 0) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 182; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_ptype_4cdec_2sa_3_sa___pyx_scope_struct_16___str__ = &__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_16___str__;
-  if (PyType_Ready(&__pyx_type_4cdec_2sa_3_sa_TrieTable) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 88; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (__Pyx_SetAttrString(__pyx_m, "TrieTable", (PyObject *)&__pyx_type_4cdec_2sa_3_sa_TrieTable) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 88; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyType_Ready(&__pyx_type_4cdec_2sa_3_sa_TrieTable) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 91; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetAttrString(__pyx_m, "TrieTable", (PyObject *)&__pyx_type_4cdec_2sa_3_sa_TrieTable) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 91; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_ptype_4cdec_2sa_3_sa_TrieTable = &__pyx_type_4cdec_2sa_3_sa_TrieTable;
   if (PyType_Ready(&__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_11_encode_words) < 0) {__pyx_filename = __pyx_f[10]; __pyx_lineno = 121; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_ptype_4cdec_2sa_3_sa___pyx_scope_struct_11_encode_words = &__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_11_encode_words;
-  if (PyType_Ready(&__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_25_genexpr) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2129; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyType_Ready(&__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_25_genexpr) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2145; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_ptype_4cdec_2sa_3_sa___pyx_scope_struct_25_genexpr = &__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_25_genexpr;
   if (PyType_Ready(&__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_12_genexpr) < 0) {__pyx_filename = __pyx_f[10]; __pyx_lineno = 122; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_ptype_4cdec_2sa_3_sa___pyx_scope_struct_12_genexpr = &__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_12_genexpr;
   if (PyType_Ready(&__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_6_genexpr) < 0) {__pyx_filename = __pyx_f[10]; __pyx_lineno = 112; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_ptype_4cdec_2sa_3_sa___pyx_scope_struct_6_genexpr = &__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_6_genexpr;
-  if (PyType_Ready(&__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_22_form_rule) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2063; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyType_Ready(&__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_22_form_rule) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2079; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_ptype_4cdec_2sa_3_sa___pyx_scope_struct_22_form_rule = &__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_22_form_rule;
   if (PyType_Ready(&__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_10_genexpr) < 0) {__pyx_filename = __pyx_f[10]; __pyx_lineno = 119; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_ptype_4cdec_2sa_3_sa___pyx_scope_struct_10_genexpr = &__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_10_genexpr;
@@ -76734,9 +77412,9 @@ PyMODINIT_FUNC PyInit__sa(void)
   __pyx_ptype_4cdec_2sa_3_sa___pyx_scope_struct_7_decode_lattice = &__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_7_decode_lattice;
   __pyx_vtabptr_4cdec_2sa_3_sa_PhraseLocation = &__pyx_vtable_4cdec_2sa_3_sa_PhraseLocation;
   __pyx_vtable_4cdec_2sa_3_sa_PhraseLocation.contains = (int (*)(struct __pyx_obj_4cdec_2sa_3_sa_PhraseLocation *, int))__pyx_f_4cdec_2sa_3_sa_14PhraseLocation_contains;
-  if (PyType_Ready(&__pyx_type_4cdec_2sa_3_sa_PhraseLocation) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 109; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (__Pyx_SetVtable(__pyx_type_4cdec_2sa_3_sa_PhraseLocation.tp_dict, __pyx_vtabptr_4cdec_2sa_3_sa_PhraseLocation) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 109; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (__Pyx_SetAttrString(__pyx_m, "PhraseLocation", (PyObject *)&__pyx_type_4cdec_2sa_3_sa_PhraseLocation) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 109; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyType_Ready(&__pyx_type_4cdec_2sa_3_sa_PhraseLocation) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 112; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetVtable(__pyx_type_4cdec_2sa_3_sa_PhraseLocation.tp_dict, __pyx_vtabptr_4cdec_2sa_3_sa_PhraseLocation) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 112; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetAttrString(__pyx_m, "PhraseLocation", (PyObject *)&__pyx_type_4cdec_2sa_3_sa_PhraseLocation) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 112; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_ptype_4cdec_2sa_3_sa_PhraseLocation = &__pyx_type_4cdec_2sa_3_sa_PhraseLocation;
   __pyx_vtabptr_4cdec_2sa_3_sa_Scorer = &__pyx_vtable_4cdec_2sa_3_sa_Scorer;
   __pyx_vtable_4cdec_2sa_3_sa_Scorer.score = (struct __pyx_obj_4cdec_2sa_3_sa_FeatureVector *(*)(struct __pyx_obj_4cdec_2sa_3_sa_Scorer *, PyObject *))__pyx_f_4cdec_2sa_3_sa_6Scorer_score;
@@ -76744,8 +77422,8 @@ PyMODINIT_FUNC PyInit__sa(void)
   if (__Pyx_SetVtable(__pyx_type_4cdec_2sa_3_sa_Scorer.tp_dict, __pyx_vtabptr_4cdec_2sa_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_4cdec_2sa_3_sa_Scorer) < 0) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 23; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_ptype_4cdec_2sa_3_sa_Scorer = &__pyx_type_4cdec_2sa_3_sa_Scorer;
-  if (PyType_Ready(&__pyx_type_4cdec_2sa_3_sa_Sampler) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 131; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (__Pyx_SetAttrString(__pyx_m, "Sampler", (PyObject *)&__pyx_type_4cdec_2sa_3_sa_Sampler) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 131; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyType_Ready(&__pyx_type_4cdec_2sa_3_sa_Sampler) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 134; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetAttrString(__pyx_m, "Sampler", (PyObject *)&__pyx_type_4cdec_2sa_3_sa_Sampler) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 134; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_ptype_4cdec_2sa_3_sa_Sampler = &__pyx_type_4cdec_2sa_3_sa_Sampler;
   __pyx_vtabptr_4cdec_2sa_3_sa_Alphabet = &__pyx_vtable_4cdec_2sa_3_sa_Alphabet;
   __pyx_vtable_4cdec_2sa_3_sa_Alphabet.isvar = (int (*)(struct __pyx_obj_4cdec_2sa_3_sa_Alphabet *, int))__pyx_f_4cdec_2sa_3_sa_8Alphabet_isvar;
@@ -76799,9 +77477,9 @@ PyMODINIT_FUNC PyInit__sa(void)
   __pyx_vtable_4cdec_2sa_3_sa_HieroCachingRuleFactory.extract_phrases = (PyObject *(*)(struct __pyx_obj_4cdec_2sa_3_sa_HieroCachingRuleFactory *, int, int, int *, int *, int *, int, int, int, int *, int *, int *, int, int, int))__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract_phrases;
   __pyx_vtable_4cdec_2sa_3_sa_HieroCachingRuleFactory.create_alignments = (struct __pyx_obj_4cdec_2sa_3_sa_IntList *(*)(struct __pyx_obj_4cdec_2sa_3_sa_HieroCachingRuleFactory *, int *, int, struct __pyx_obj_4cdec_2sa_3_sa_IntList *, struct __pyx_obj_4cdec_2sa_3_sa_IntList *))__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_create_alignments;
   __pyx_vtable_4cdec_2sa_3_sa_HieroCachingRuleFactory.extract = (PyObject *(*)(struct __pyx_obj_4cdec_2sa_3_sa_HieroCachingRuleFactory *, struct __pyx_obj_4cdec_2sa_3_sa_Phrase *, struct __pyx_t_4cdec_2sa_3_sa_Matching *, int *, int))__pyx_f_4cdec_2sa_3_sa_23HieroCachingRuleFactory_extract;
-  if (PyType_Ready(&__pyx_type_4cdec_2sa_3_sa_HieroCachingRuleFactory) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 253; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (__Pyx_SetVtable(__pyx_type_4cdec_2sa_3_sa_HieroCachingRuleFactory.tp_dict, __pyx_vtabptr_4cdec_2sa_3_sa_HieroCachingRuleFactory) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 253; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (__Pyx_SetAttrString(__pyx_m, "HieroCachingRuleFactory", (PyObject *)&__pyx_type_4cdec_2sa_3_sa_HieroCachingRuleFactory) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 253; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyType_Ready(&__pyx_type_4cdec_2sa_3_sa_HieroCachingRuleFactory) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 256; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetVtable(__pyx_type_4cdec_2sa_3_sa_HieroCachingRuleFactory.tp_dict, __pyx_vtabptr_4cdec_2sa_3_sa_HieroCachingRuleFactory) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 256; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetAttrString(__pyx_m, "HieroCachingRuleFactory", (PyObject *)&__pyx_type_4cdec_2sa_3_sa_HieroCachingRuleFactory) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 256; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_ptype_4cdec_2sa_3_sa_HieroCachingRuleFactory = &__pyx_type_4cdec_2sa_3_sa_HieroCachingRuleFactory;
   if (PyType_Ready(&__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_28___str__) < 0) {__pyx_filename = __pyx_f[13]; __pyx_lineno = 20; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_ptype_4cdec_2sa_3_sa___pyx_scope_struct_28___str__ = &__pyx_type_4cdec_2sa_3_sa___pyx_scope_struct_28___str__;
@@ -77199,7 +77877,7 @@ PyMODINIT_FUNC PyInit__sa(void)
  *      'fsample_count',
  *      'paircount',
  */
-  __pyx_t_3 = PyList_New(6); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 31; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyList_New(7); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 31; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_INCREF(((PyObject *)__pyx_n_s__fcount));
   PyList_SET_ITEM(__pyx_t_3, 0, ((PyObject *)__pyx_n_s__fcount));
@@ -77219,6 +77897,9 @@ PyMODINIT_FUNC PyInit__sa(void)
   __Pyx_INCREF(((PyObject *)__pyx_n_s__bilex_fe));
   PyList_SET_ITEM(__pyx_t_3, 5, ((PyObject *)__pyx_n_s__bilex_fe));
   __Pyx_GIVEREF(((PyObject *)__pyx_n_s__bilex_fe));
+  __Pyx_INCREF(((PyObject *)__pyx_n_s__bilex_ef));
+  PyList_SET_ITEM(__pyx_t_3, 6, ((PyObject *)__pyx_n_s__bilex_ef));
+  __Pyx_GIVEREF(((PyObject *)__pyx_n_s__bilex_ef));
   __pyx_t_2 = PyTuple_New(2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 30; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_INCREF(((PyObject *)__pyx_n_s_152));
@@ -77234,8 +77915,8 @@ PyMODINIT_FUNC PyInit__sa(void)
   if (PyDict_SetItem(__pyx_d, __pyx_n_s_152, __pyx_t_3) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 30; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":64
- *         self.bilex_fe = defaultdict(lambda: defaultdict(int))
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":67
+ *         self.bilex_ef = defaultdict(lambda: defaultdict(int))
  * 
  * cdef int PRECOMPUTE = 0             # <<<<<<<<<<<<<<
  * cdef int MERGE = 1
@@ -77243,7 +77924,7 @@ PyMODINIT_FUNC PyInit__sa(void)
  */
   __pyx_v_4cdec_2sa_3_sa_PRECOMPUTE = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":65
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":68
  * 
  * cdef int PRECOMPUTE = 0
  * cdef int MERGE = 1             # <<<<<<<<<<<<<<
@@ -77252,7 +77933,7 @@ PyMODINIT_FUNC PyInit__sa(void)
  */
   __pyx_v_4cdec_2sa_3_sa_MERGE = 1;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":66
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":69
  * cdef int PRECOMPUTE = 0
  * cdef int MERGE = 1
  * cdef int BAEZA_YATES = 2             # <<<<<<<<<<<<<<
@@ -77261,7 +77942,7 @@ PyMODINIT_FUNC PyInit__sa(void)
  */
   __pyx_v_4cdec_2sa_3_sa_BAEZA_YATES = 2;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":69
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":72
  * 
  * # NOTE: was encoded as a non-terminal in the previous version
  * cdef int EPSILON = sym_fromstring('*EPS*', True)             # <<<<<<<<<<<<<<
@@ -77270,53 +77951,53 @@ PyMODINIT_FUNC PyInit__sa(void)
  */
   __pyx_v_4cdec_2sa_3_sa_EPSILON = __pyx_f_4cdec_2sa_3_sa_sym_fromstring(__pyx_k_176, 1);
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":92
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":95
  *     cdef public int count
  *     cdef public root
  *     def __cinit__(self, extended=False):             # <<<<<<<<<<<<<<
  *         self.count = 0
  *         self.extended = extended
  */
-  __pyx_t_3 = __Pyx_PyBool_FromLong(0); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 92; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = __Pyx_PyBool_FromLong(0); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 95; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __pyx_k_103 = __pyx_t_3;
   __Pyx_GIVEREF(__pyx_t_3);
   __pyx_t_3 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2190
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2206
  * 
  * # Spans are _inclusive_ on both ends [i, j]
  * def span_check(vec, i, j):             # <<<<<<<<<<<<<<
  *     k = i
  *     while k <= j:
  */
-  __pyx_t_3 = PyCFunction_NewEx(&__pyx_mdef_4cdec_2sa_3_sa_17span_check, NULL, __pyx_n_s_102); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2190; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyCFunction_NewEx(&__pyx_mdef_4cdec_2sa_3_sa_17span_check, NULL, __pyx_n_s_102); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2206; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
-  if (PyDict_SetItem(__pyx_d, __pyx_n_s__span_check, __pyx_t_3) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2190; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_d, __pyx_n_s__span_check, __pyx_t_3) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2206; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2198
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2214
  *     return True
  * 
  * def span_inc(vec, i, j):             # <<<<<<<<<<<<<<
  *     k = i
  *     while k <= j:
  */
-  __pyx_t_3 = PyCFunction_NewEx(&__pyx_mdef_4cdec_2sa_3_sa_19span_inc, NULL, __pyx_n_s_102); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2198; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyCFunction_NewEx(&__pyx_mdef_4cdec_2sa_3_sa_19span_inc, NULL, __pyx_n_s_102); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2214; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
-  if (PyDict_SetItem(__pyx_d, __pyx_n_s__span_inc, __pyx_t_3) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2198; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_d, __pyx_n_s__span_inc, __pyx_t_3) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2214; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2204
+  /* "/home/mdenkows/cdec/python/cdec/sa/rulefactory.pxi":2220
  *         k += 1
  * 
  * def span_dec(vec, i, j):             # <<<<<<<<<<<<<<
  *     k = i
  *     while k <= j:
  */
-  __pyx_t_3 = PyCFunction_NewEx(&__pyx_mdef_4cdec_2sa_3_sa_21span_dec, NULL, __pyx_n_s_102); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2204; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyCFunction_NewEx(&__pyx_mdef_4cdec_2sa_3_sa_21span_dec, NULL, __pyx_n_s_102); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2220; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
-  if (PyDict_SetItem(__pyx_d, __pyx_n_s__span_dec, __pyx_t_3) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2204; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_d, __pyx_n_s__span_dec, __pyx_t_3) < 0) {__pyx_filename = __pyx_f[8]; __pyx_lineno = 2220; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
   /* "/home/mdenkows/cdec/python/cdec/sa/features.pxi":1
diff --git a/python/cdec/sa/rulefactory.pxi b/python/cdec/sa/rulefactory.pxi
index 78a23196..044a78c8 100644
--- a/python/cdec/sa/rulefactory.pxi
+++ b/python/cdec/sa/rulefactory.pxi
@@ -33,7 +33,8 @@ OnlineFeatureContext = namedtuple('OnlineFeatureContext',
      'paircount',
      'bilex_f',
      'bilex_e',
-     'bilex_fe'
+     'bilex_fe',
+     'bilex_ef'
     ])
 
 cdef class OnlineStats:
@@ -45,6 +46,7 @@ cdef class OnlineStats:
     cdef public bilex_f
     cdef public bilex_e
     cdef public bilex_fe
+    cdef public bilex_ef
 
     def __cinit__(self):
         # Keep track of everything that can be sampled:
@@ -60,6 +62,7 @@ cdef class OnlineStats:
         self.bilex_f = defaultdict(int)
         self.bilex_e = defaultdict(int)
         self.bilex_fe = defaultdict(lambda: defaultdict(int))
+        self.bilex_ef = defaultdict(lambda: defaultdict(int))
 
 cdef int PRECOMPUTE = 0
 cdef int MERGE = 1
@@ -2052,13 +2055,25 @@ cdef class HieroCachingRuleFactory:
                 stats.phrases_al[f_ph][e_ph] = al
             
         # Update Bilexical counts
-        # TODO: use alignments instead of cooc
-        for e_w in e_words:
-            stats.bilex_e[e_w] += 1
-        for f_w in f_words:
-            stats.bilex_f[f_w] += 1
-            for e_w in e_words:
-                stats.bilex_fe[f_w][e_w] += 1
+        aligned_fe = [list() for _ in range(len(f_words))]
+        aligned_ef = [list() for _ in range(len(e_words))]
+        for (i, j) in alignment:
+            aligned_fe[i].append(j)
+            aligned_ef[j].append(i)
+        for f_i in range(len(f_words)):
+            e_i_aligned = aligned_fe[f_i]
+            lc = len(e_i_aligned)
+            if lc > 0:
+                stats.bilex_f[f_words[f_i]] += 1
+                for e_i in e_i_aligned:
+                    stats.bilex_fe[f_words[f_i]][e_words[e_i]] += (1.0) / lc
+        for e_i in range(len(e_words)):
+            f_i_aligned = aligned_ef[e_i]
+            lc = len(f_i_aligned)
+            if lc > 0:
+                stats.bilex_e[e_words[e_i]] += 1
+                for f_i in f_i_aligned:
+                    stats.bilex_ef[e_words[e_i]][f_words[f_i]] += (1.0) / lc
 
     # Create a rule from source, target, non-terminals, and alignments
     def form_rule(self, f_i, e_i, f_span, e_span, nt, al):