One extractor, multiple online contexts.

1 files changed, 5120 insertions, 5120 deletions

diff --git a/python/cdec/_cdec.cpp b/python/cdec/_cdec.cpp
index ae36b773..ca693bcd 100644
--- a/python/cdec/_cdec.cpp
+++ b/python/cdec/_cdec.cpp
@@ -1,4 +1,4 @@
-/* Generated by Cython 0.19.1 on Sun Jun  2 14:47:49 2013 */
+/* Generated by Cython 0.19.1 on Mon Sep 23 08:04:01 2013 */
 
 #define PY_SSIZE_T_CLEAN
 #ifndef CYTHON_USE_PYLONG_INTERNALS
@@ -306,8 +306,8 @@ static CYTHON_INLINE float __PYX_NAN() {
 #define _USE_MATH_DEFINES
 #endif
 #include <math.h>
-#define __PYX_HAVE___cdec
-#define __PYX_HAVE_API___cdec
+#define __PYX_HAVE__cdec___cdec
+#define __PYX_HAVE_API__cdec___cdec
 #include "string.h"
 #include <string>
 #include "ios"
@@ -525,75 +525,75 @@ static const char *__pyx_f[] = {
   "hypergraph.pxi",
   "lattice.pxi",
   "mteval.pxi",
-  "cdec.sa._sa.pxd",
+  "_sa.pxd",
 };
 
 /*--- Type declarations ---*/
 struct __pyx_obj_4cdec_2sa_3_sa_FeatureVector;
-struct __pyx_obj_5_cdec___pyx_scope_struct_24___init__;
-struct __pyx_obj_5_cdec_NTRef;
-struct __pyx_obj_5_cdec_Scorer;
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_22___iter__;
+struct __pyx_obj_4cdec_5_cdec_DenseVector;
+struct __pyx_obj_4cdec_5_cdec_SufficientStats;
+struct __pyx_obj_4cdec_5_cdec_TRule;
+struct __pyx_obj_4cdec_5_cdec_MRule;
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_21___iter__;
+struct __pyx_obj_4cdec_5_cdec_Metric;
 struct __pyx_obj_4cdec_2sa_3_sa_IntList;
-struct __pyx_obj_4cdec_2sa_3_sa_Phrase;
-struct __pyx_obj_5_cdec___pyx_scope_struct_22___iter__;
-struct __pyx_obj_5_cdec_Grammar;
-struct __pyx_obj_5_cdec___pyx_scope_struct_20_lines;
-struct __pyx_obj_5_cdec___pyx_scope_struct_12_sample_trees;
-struct __pyx_obj_5_cdec___pyx_scope_struct_13___get__;
-struct __pyx_obj_5_cdec___pyx_scope_struct_2__phrase;
-struct __pyx_obj_5_cdec_CandidateSet;
-struct __pyx_obj_5_cdec___pyx_scope_struct_14___get__;
-struct __pyx_obj_5_cdec_TRule;
+struct __pyx_obj_4cdec_5_cdec_SparseVector;
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_15___get__;
+struct __pyx_obj_4cdec_5_cdec_NT;
+struct __pyx_obj_4cdec_5_cdec_Lattice;
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_23__make_config;
+struct __pyx_obj_4cdec_5_cdec_HypergraphEdge;
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_2__phrase;
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_13___get__;
 struct __pyx_obj_4cdec_2sa_3_sa_Rule;
-struct __pyx_obj_5_cdec_MRule;
-struct __pyx_obj_5_cdec_SegmentEvaluator;
-struct __pyx_obj_5_cdec___pyx_scope_struct_25_genexpr;
-struct __pyx_obj_5_cdec___pyx_scope_struct_19_todot;
-struct __pyx_obj_5_cdec_Candidate;
-struct __pyx_obj_5_cdec___pyx_scope_struct_6_genexpr;
-struct __pyx_obj_5_cdec_NT;
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_20_lines;
+struct __pyx_obj_4cdec_5_cdec_Scorer;
+struct __pyx_obj_4cdec_5_cdec_HypergraphNode;
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_10_kbest_features;
+struct __pyx_obj_4cdec_5_cdec_NTRef;
+struct __pyx_obj_4cdec_5_cdec_Grammar;
+struct __pyx_obj_4cdec_5_cdec_Hypergraph;
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_24___init__;
+struct __pyx_obj_4cdec_5_cdec_CandidateSet;
 struct __pyx_obj_4cdec_2sa_3_sa_FloatList;
-struct __pyx_obj_5_cdec_HypergraphEdge;
-struct __pyx_obj_5_cdec___pyx_scope_struct_1___iter__;
-struct __pyx_obj_5_cdec___pyx_scope_struct_16___get__;
-struct __pyx_obj_5_cdec___pyx_scope_struct_4___get__;
-struct __pyx_obj_5_cdec___pyx_scope_struct_18___iter__;
-struct __pyx_obj_5_cdec_Decoder;
-struct __pyx_obj_5_cdec_HypergraphNode;
-struct __pyx_obj_5_cdec_SparseVector;
-struct __pyx_obj_5_cdec___pyx_scope_struct_17___get__;
-struct __pyx_obj_5_cdec___pyx_scope_struct____iter__;
-struct __pyx_obj_5_cdec___pyx_scope_struct_21___iter__;
-struct __pyx_obj_5_cdec_DenseVector;
-struct __pyx_obj_5_cdec___pyx_scope_struct_7___iter__;
-struct __pyx_obj_5_cdec_Metric;
-struct __pyx_obj_5_cdec_SufficientStats;
-struct __pyx_obj_5_cdec___pyx_scope_struct_8_kbest;
-struct __pyx_obj_5_cdec___pyx_scope_struct_10_kbest_features;
-struct __pyx_obj_5_cdec___pyx_scope_struct_15___get__;
-struct __pyx_obj_5_cdec___pyx_scope_struct_5___str__;
-struct __pyx_obj_5_cdec___pyx_scope_struct_3_genexpr;
-struct __pyx_obj_5_cdec___pyx_scope_struct_9_kbest_trees;
-struct __pyx_obj_5_cdec_Hypergraph;
-struct __pyx_obj_5_cdec_Lattice;
-struct __pyx_obj_5_cdec___pyx_scope_struct_11_sample;
-struct __pyx_obj_5_cdec___pyx_scope_struct_23__make_config;
-struct __pyx_obj_5_cdec_TextGrammar;
-struct __pyx_opt_args_5_cdec_as_str;
-
-/* "_cdec.pyx":6
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees;
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_19_todot;
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_5___str__;
+struct __pyx_obj_4cdec_5_cdec_SegmentEvaluator;
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_16___get__;
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_25_genexpr;
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_3_genexpr;
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_11_sample;
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_8_kbest;
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_14___get__;
+struct __pyx_obj_4cdec_2sa_3_sa_Phrase;
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_7___iter__;
+struct __pyx_obj_4cdec_5_cdec_TextGrammar;
+struct __pyx_obj_4cdec_5_cdec_Decoder;
+struct __pyx_obj_4cdec_5_cdec_Candidate;
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_17___get__;
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_18___iter__;
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct____iter__;
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_6_genexpr;
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_12_sample_trees;
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_4___get__;
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_1___iter__;
+struct __pyx_opt_args_4cdec_5_cdec_as_str;
+
+/* "cdec/_cdec.pyx":6
  * cimport decoder
  * 
  * cdef bytes as_str(data, char* error_msg='Cannot convert type %s to str'):             # <<<<<<<<<<<<<<
  *     cdef bytes ret
  *     if isinstance(data, unicode):
  */
-struct __pyx_opt_args_5_cdec_as_str {
+struct __pyx_opt_args_4cdec_5_cdec_as_str {
   int __pyx_n;
   char *error_msg;
 };
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/cdec.sa._sa.pxd":25
+/* "cdec/sa/_sa.pxd":25
  *     cdef void read_handle(self, FILE* f)
  * 
  * cdef class FeatureVector:             # <<<<<<<<<<<<<<
@@ -607,47 +607,106 @@ struct __pyx_obj_4cdec_2sa_3_sa_FeatureVector {
 };
 
 
-/* "_cdec.pyx":47
- *     cdef DenseVector weights
+/* "/home/mdenkows/cdec/python/cdec/mteval.pxi":90
+ *         return candidate
  * 
- *     def __init__(self, config_str=None, **config):             # <<<<<<<<<<<<<<
- *         """Decoder('formalism = scfg') -> initialize from configuration string
- *         Decoder(formalism='scfg') -> initialize from named parameters
+ *     def __iter__(self):             # <<<<<<<<<<<<<<
+ *         cdef unsigned i
+ *         for i in range(len(self)):
  */
-struct __pyx_obj_5_cdec___pyx_scope_struct_24___init__ {
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_22___iter__ {
   PyObject_HEAD
-  PyObject *__pyx_v_config;
+  unsigned int __pyx_v_i;
+  struct __pyx_obj_4cdec_5_cdec_CandidateSet *__pyx_v_self;
+  Py_ssize_t __pyx_t_0;
+  unsigned int __pyx_t_1;
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":21
- *         return '[%s]' % self.cat
+/* "/home/mdenkows/cdec/python/cdec/vectors.pxi":3
+ * from cython.operator cimport preincrement as pinc
  * 
- * cdef class NTRef:             # <<<<<<<<<<<<<<
- *     cdef public unsigned ref
- *     def __init__(self, unsigned ref):
+ * cdef class DenseVector:             # <<<<<<<<<<<<<<
+ *     cdef vector[weight_t]* vector
+ *     cdef bint owned # if True, do not manage memory
  */
-struct __pyx_obj_5_cdec_NTRef {
+struct __pyx_obj_4cdec_5_cdec_DenseVector {
   PyObject_HEAD
-  unsigned int ref;
+  std::vector<weight_t> *vector;
+  int owned;
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":121
- *         return CandidateSet(self)
+/* "/home/mdenkows/cdec/python/cdec/mteval.pxi":26
+ *             return fmap
  * 
- * cdef class Scorer:             # <<<<<<<<<<<<<<
- *     cdef string* name
+ * cdef class SufficientStats:             # <<<<<<<<<<<<<<
+ *     cdef mteval.SufficientStats* stats
  *     cdef mteval.EvaluationMetric* metric
  */
-struct __pyx_obj_5_cdec_Scorer {
+struct __pyx_obj_4cdec_5_cdec_SufficientStats {
   PyObject_HEAD
-  std::string *name;
+  SufficientStats *stats;
   EvaluationMetric *metric;
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/cdec.sa._sa.pxd":12
+/* "/home/mdenkows/cdec/python/cdec/grammar.pxi":49
+ *     return TRule(lhs, f, e, scores, a)
+ * 
+ * cdef class TRule:             # <<<<<<<<<<<<<<
+ *     cdef shared_ptr[grammar.TRule]* rule
+ * 
+ */
+struct __pyx_obj_4cdec_5_cdec_TRule {
+  PyObject_HEAD
+  boost::shared_ptr<TRule> *rule;
+};
+
+
+/* "/home/mdenkows/cdec/python/cdec/grammar.pxi":177
+ *                 _phrase(self.f), _phrase(self.e), scores)
+ * 
+ * cdef class MRule(TRule):             # <<<<<<<<<<<<<<
+ *     def __init__(self, lhs, rhs, scores):
+ *         """MRule(lhs, rhs, scores, a=None) -> Monolingual rule.
+ */
+struct __pyx_obj_4cdec_5_cdec_MRule {
+  struct __pyx_obj_4cdec_5_cdec_TRule __pyx_base;
+};
+
+
+/* "/home/mdenkows/cdec/python/cdec/mteval.pxi":44
+ *         return self.stats.size()
+ * 
+ *     def __iter__(self):             # <<<<<<<<<<<<<<
+ *         for i in range(len(self)):
+ *             yield self[i]
+ */
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_21___iter__ {
+  PyObject_HEAD
+  PyObject *__pyx_v_i;
+  struct __pyx_obj_4cdec_5_cdec_SufficientStats *__pyx_v_self;
+  Py_ssize_t __pyx_t_0;
+  PyObject *__pyx_t_1;
+  PyObject *(*__pyx_t_2)(PyObject *);
+};
+
+
+/* "/home/mdenkows/cdec/python/cdec/mteval.pxi":176
+ *         out.fields[i] = ss[i]
+ * 
+ * cdef class Metric:             # <<<<<<<<<<<<<<
+ *     cdef Scorer scorer
+ *     def __cinit__(self):
+ */
+struct __pyx_obj_4cdec_5_cdec_Metric {
+  PyObject_HEAD
+  struct __pyx_obj_4cdec_5_cdec_Scorer *scorer;
+};
+
+
+/* "cdec/sa/_sa.pxd":12
  *     cdef void read_handle(self, FILE* f)
  * 
  * cdef class IntList:             # <<<<<<<<<<<<<<
@@ -664,167 +723,131 @@ struct __pyx_obj_4cdec_2sa_3_sa_IntList {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/cdec.sa._sa.pxd":29
- *     cdef FloatList values
+/* "/home/mdenkows/cdec/python/cdec/vectors.pxi":48
+ *         return sparse
+ * 
+ * cdef class SparseVector:             # <<<<<<<<<<<<<<
+ *     cdef FastSparseVector[weight_t]* vector
  * 
- * cdef class Phrase:             # <<<<<<<<<<<<<<
- *     cdef int *syms
- *     cdef int n, *varpos, n_vars
  */
-struct __pyx_obj_4cdec_2sa_3_sa_Phrase {
+struct __pyx_obj_4cdec_5_cdec_SparseVector {
   PyObject_HEAD
-  struct __pyx_vtabstruct_4cdec_2sa_3_sa_Phrase *__pyx_vtab;
-  int *syms;
-  int n;
-  int *varpos;
-  int n_vars;
+  FastSparseVector<weight_t> *vector;
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":90
- *         return candidate
+/* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":216
  * 
- *     def __iter__(self):             # <<<<<<<<<<<<<<
- *         cdef unsigned i
- *         for i in range(len(self)):
+ *     property tail_nodes:
+ *         def __get__(self):             # <<<<<<<<<<<<<<
+ *             cdef unsigned i
+ *             for i in range(self.edge.tail_nodes_.size()):
  */
-struct __pyx_obj_5_cdec___pyx_scope_struct_22___iter__ {
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_15___get__ {
   PyObject_HEAD
   unsigned int __pyx_v_i;
-  struct __pyx_obj_5_cdec_CandidateSet *__pyx_v_self;
-  Py_ssize_t __pyx_t_0;
+  struct __pyx_obj_4cdec_5_cdec_HypergraphEdge *__pyx_v_self;
+  unsigned int __pyx_t_0;
   unsigned int __pyx_t_1;
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":193
- *         super(MRule, self).__init__(lhs, rhs, e, scores, None)
- * 
- * cdef class Grammar:             # <<<<<<<<<<<<<<
- *     cdef shared_ptr[grammar.Grammar]* grammar
+/* "/home/mdenkows/cdec/python/cdec/grammar.pxi":8
+ *     return ' '.join(w.encode('utf8') if isinstance(w, unicode) else str(w) for w in phrase)
  * 
+ * cdef class NT:             # <<<<<<<<<<<<<<
+ *     cdef public bytes cat
+ *     cdef public unsigned ref
  */
-struct __pyx_obj_5_cdec_Grammar {
+struct __pyx_obj_4cdec_5_cdec_NT {
   PyObject_HEAD
-  boost::shared_ptr<Grammar> *grammar;
+  PyObject *cat;
+  unsigned int ref;
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":63
- *     def todot(self):
- *         """lattice.todot() -> Representation of the lattice in GraphViz dot format."""
- *         def lines():             # <<<<<<<<<<<<<<
- *             yield 'digraph lattice {'
- *             yield 'rankdir = LR;'
+/* "/home/mdenkows/cdec/python/cdec/lattice.pxi":3
+ * cimport lattice
+ * 
+ * cdef class Lattice:             # <<<<<<<<<<<<<<
+ *     cdef lattice.Lattice* lattice
+ * 
  */
-struct __pyx_obj_5_cdec___pyx_scope_struct_20_lines {
+struct __pyx_obj_4cdec_5_cdec_Lattice {
   PyObject_HEAD
-  struct __pyx_obj_5_cdec___pyx_scope_struct_19_todot *__pyx_outer_scope;
-  PyObject *__pyx_v_delta;
-  PyObject *__pyx_v_i;
-  PyObject *__pyx_v_label;
-  PyObject *__pyx_v_weight;
-  Py_ssize_t __pyx_t_0;
-  PyObject *__pyx_t_1;
-  PyObject *(*__pyx_t_2)(PyObject *);
-  PyObject *__pyx_t_3;
-  Py_ssize_t __pyx_t_4;
-  PyObject *(*__pyx_t_5)(PyObject *);
+  Lattice *lattice;
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":108
- *             del hypos
+/* "cdec/_cdec.pyx":32
+ *     SetSilent(yn)
  * 
- *     def sample_trees(self, unsigned n):             # <<<<<<<<<<<<<<
- *        """hg.sample_trees(n) -> Sample of n trees from the hypergraph."""
- *        cdef vector[string]* trees = new vector[string]()
+ * def _make_config(config):             # <<<<<<<<<<<<<<
+ *     for key, value in config.items():
+ *         if isinstance(value, dict):
  */
-struct __pyx_obj_5_cdec___pyx_scope_struct_12_sample_trees {
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_23__make_config {
   PyObject_HEAD
-  unsigned int __pyx_v_k;
-  unsigned int __pyx_v_n;
-  struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self;
-  std::vector<std::string> *__pyx_v_trees;
-  size_t __pyx_t_0;
-  unsigned int __pyx_t_1;
+  PyObject *__pyx_v_config;
+  PyObject *__pyx_v_info;
+  PyObject *__pyx_v_key;
+  PyObject *__pyx_v_name;
+  PyObject *__pyx_v_value;
+  PyObject *__pyx_t_0;
+  PyObject *__pyx_t_1;
+  Py_ssize_t __pyx_t_2;
+  PyObject *(*__pyx_t_3)(PyObject *);
+  Py_ssize_t __pyx_t_4;
+  PyObject *(*__pyx_t_5)(PyObject *);
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":161
+/* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":196
+ *         return vector
  * 
- *     property edges:
- *         def __get__(self):             # <<<<<<<<<<<<<<
- *             cdef unsigned i
- *             for i in range(self.hg.edges_.size()):
+ * cdef class HypergraphEdge:             # <<<<<<<<<<<<<<
+ *     cdef hypergraph.Hypergraph* hg
+ *     cdef hypergraph.HypergraphEdge* edge
  */
-struct __pyx_obj_5_cdec___pyx_scope_struct_13___get__ {
+struct __pyx_obj_4cdec_5_cdec_HypergraphEdge {
   PyObject_HEAD
-  unsigned int __pyx_v_i;
-  struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self;
-  size_t __pyx_t_0;
-  unsigned int __pyx_t_1;
+  struct __pyx_vtabstruct_4cdec_5_cdec_HypergraphEdge *__pyx_vtab;
+  Hypergraph *hg;
+  Hypergraph::Edge *edge;
+  struct __pyx_obj_4cdec_5_cdec_TRule *trule;
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":5
+/* "/home/mdenkows/cdec/python/cdec/grammar.pxi":5
  * import cdec.sa._sa as _sa
  * 
  * def _phrase(phrase):             # <<<<<<<<<<<<<<
  *     return ' '.join(w.encode('utf8') if isinstance(w, unicode) else str(w) for w in phrase)
  * 
  */
-struct __pyx_obj_5_cdec___pyx_scope_struct_2__phrase {
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_2__phrase {
   PyObject_HEAD
   PyObject *__pyx_v_phrase;
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":65
- *         return result
- * 
- * cdef class CandidateSet:             # <<<<<<<<<<<<<<
- *     cdef shared_ptr[mteval.SegmentEvaluator]* scorer
- *     cdef mteval.EvaluationMetric* metric
- */
-struct __pyx_obj_5_cdec_CandidateSet {
-  PyObject_HEAD
-  boost::shared_ptr<SegmentEvaluator> *scorer;
-  EvaluationMetric *metric;
-  training::CandidateSet *cs;
-};
-
-
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":167
+/* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":161
  * 
- *     property nodes:
+ *     property edges:
  *         def __get__(self):             # <<<<<<<<<<<<<<
  *             cdef unsigned i
- *             for i in range(self.hg.nodes_.size()):
+ *             for i in range(self.hg.edges_.size()):
  */
-struct __pyx_obj_5_cdec___pyx_scope_struct_14___get__ {
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_13___get__ {
   PyObject_HEAD
   unsigned int __pyx_v_i;
-  struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self;
+  struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_self;
   size_t __pyx_t_0;
   unsigned int __pyx_t_1;
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":49
- *     return TRule(lhs, f, e, scores, a)
- * 
- * cdef class TRule:             # <<<<<<<<<<<<<<
- *     cdef shared_ptr[grammar.TRule]* rule
- * 
- */
-struct __pyx_obj_5_cdec_TRule {
-  PyObject_HEAD
-  boost::shared_ptr<TRule> *rule;
-};
-
-
-/* "/Users/vchahun/Sandbox/cdec/python/src/cdec.sa._sa.pxd":35
+/* "cdec/sa/_sa.pxd":35
  *     cdef public int chunklen(self, int k)
  * 
  * cdef class Rule:             # <<<<<<<<<<<<<<
@@ -842,108 +865,148 @@ struct __pyx_obj_4cdec_2sa_3_sa_Rule {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":177
- *                 _phrase(self.f), _phrase(self.e), scores)
- * 
- * cdef class MRule(TRule):             # <<<<<<<<<<<<<<
- *     def __init__(self, lhs, rhs, scores):
- *         """MRule(lhs, rhs, scores, a=None) -> Monolingual rule.
+/* "/home/mdenkows/cdec/python/cdec/lattice.pxi":63
+ *     def todot(self):
+ *         """lattice.todot() -> Representation of the lattice in GraphViz dot format."""
+ *         def lines():             # <<<<<<<<<<<<<<
+ *             yield 'digraph lattice {'
+ *             yield 'rankdir = LR;'
  */
-struct __pyx_obj_5_cdec_MRule {
-  struct __pyx_obj_5_cdec_TRule __pyx_base;
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_20_lines {
+  PyObject_HEAD
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_19_todot *__pyx_outer_scope;
+  PyObject *__pyx_v_delta;
+  PyObject *__pyx_v_i;
+  PyObject *__pyx_v_label;
+  PyObject *__pyx_v_weight;
+  Py_ssize_t __pyx_t_0;
+  PyObject *__pyx_t_1;
+  PyObject *(*__pyx_t_2)(PyObject *);
+  PyObject *__pyx_t_3;
+  Py_ssize_t __pyx_t_4;
+  PyObject *(*__pyx_t_5)(PyObject *);
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":100
- *         self.cs.AddKBestCandidates(hypergraph.hg[0], k, self.scorer.get())
+/* "/home/mdenkows/cdec/python/cdec/mteval.pxi":121
+ *         return CandidateSet(self)
  * 
- * cdef class SegmentEvaluator:             # <<<<<<<<<<<<<<
- *     cdef shared_ptr[mteval.SegmentEvaluator]* scorer
+ * cdef class Scorer:             # <<<<<<<<<<<<<<
+ *     cdef string* name
  *     cdef mteval.EvaluationMetric* metric
  */
-struct __pyx_obj_5_cdec_SegmentEvaluator {
+struct __pyx_obj_4cdec_5_cdec_Scorer {
   PyObject_HEAD
-  boost::shared_ptr<SegmentEvaluator> *scorer;
+  std::string *name;
   EvaluationMetric *metric;
 };
 
 
-/* "_cdec.pyx":56
- *                     'csplit', 'tagger', 'lexalign'):
- *                 raise InvalidConfig('formalism "%s" unknown' % formalism)
- *             config_str = '\n'.join('%s = %s' % kv for kv in _make_config(config))             # <<<<<<<<<<<<<<
- *         cdef istringstream* config_stream = new istringstream(config_str)
- *         self.dec = new decoder.Decoder(config_stream)
+/* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":246
+ *         raise NotImplemented('comparison not implemented for HypergraphEdge')
+ * 
+ * cdef class HypergraphNode:             # <<<<<<<<<<<<<<
+ *     cdef hypergraph.Hypergraph* hg
+ *     cdef hypergraph.HypergraphNode* node
  */
-struct __pyx_obj_5_cdec___pyx_scope_struct_25_genexpr {
+struct __pyx_obj_4cdec_5_cdec_HypergraphNode {
   PyObject_HEAD
-  struct __pyx_obj_5_cdec___pyx_scope_struct_24___init__ *__pyx_outer_scope;
-  PyObject *__pyx_v_kv;
-  PyObject *__pyx_t_0;
-  Py_ssize_t __pyx_t_1;
-  PyObject *(*__pyx_t_2)(PyObject *);
+  struct __pyx_vtabstruct_4cdec_5_cdec_HypergraphNode *__pyx_vtab;
+  Hypergraph *hg;
+  Hypergraph::Node *node;
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":61
- *             yield self[i]
+/* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":81
+ *             del e_derivations
  * 
- *     def todot(self):             # <<<<<<<<<<<<<<
- *         """lattice.todot() -> Representation of the lattice in GraphViz dot format."""
- *         def lines():
+ *     def kbest_features(self, size):             # <<<<<<<<<<<<<<
+ *         """hg.kbest_trees(size) -> List of k-best feature vectors in the hypergraph."""
+ *         cdef kbest.KBestDerivations[FastSparseVector[weight_t], kbest.FeatureVectorTraversal]* derivations = new kbest.KBestDerivations[FastSparseVector[weight_t], kbest.FeatureVectorTraversal](self.hg[0], size)
  */
-struct __pyx_obj_5_cdec___pyx_scope_struct_19_todot {
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_10_kbest_features {
   PyObject_HEAD
-  struct __pyx_obj_5_cdec_Lattice *__pyx_v_self;
+  KBest::KBestDerivations<FastSparseVector<weight_t>,FeatureVectorTraversal>::Derivation *__pyx_v_derivation;
+  KBest::KBestDerivations<FastSparseVector<weight_t>,FeatureVectorTraversal> *__pyx_v_derivations;
+  struct __pyx_obj_4cdec_5_cdec_SparseVector *__pyx_v_fmap;
+  unsigned int __pyx_v_k;
+  struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_self;
+  PyObject *__pyx_v_size;
+  unsigned int __pyx_t_0;
+  long __pyx_t_1;
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":12
- *         return stats
+/* "/home/mdenkows/cdec/python/cdec/grammar.pxi":21
+ *         return '[%s]' % self.cat
  * 
- * cdef class Candidate:             # <<<<<<<<<<<<<<
- *     cdef mteval.const_Candidate* candidate
- *     cdef public float score
+ * cdef class NTRef:             # <<<<<<<<<<<<<<
+ *     cdef public unsigned ref
+ *     def __init__(self, unsigned ref):
  */
-struct __pyx_obj_5_cdec_Candidate {
+struct __pyx_obj_4cdec_5_cdec_NTRef {
   PyObject_HEAD
-  const training::Candidate *candidate;
-  float score;
+  unsigned int ref;
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":173
+/* "/home/mdenkows/cdec/python/cdec/grammar.pxi":193
+ *         super(MRule, self).__init__(lhs, rhs, e, scores, None)
+ * 
+ * cdef class Grammar:             # <<<<<<<<<<<<<<
+ *     cdef shared_ptr[grammar.Grammar]* grammar
  * 
- *     def __str__(self):
- *         scores = ' '.join('%s=%s' % feat for feat in self.scores)             # <<<<<<<<<<<<<<
- *         return '%s ||| %s ||| %s ||| %s' % (self.lhs,
- *                 _phrase(self.f), _phrase(self.e), scores)
  */
-struct __pyx_obj_5_cdec___pyx_scope_struct_6_genexpr {
+struct __pyx_obj_4cdec_5_cdec_Grammar {
   PyObject_HEAD
-  struct __pyx_obj_5_cdec___pyx_scope_struct_5___str__ *__pyx_outer_scope;
-  PyObject *__pyx_v_feat;
-  PyObject *__pyx_t_0;
-  Py_ssize_t __pyx_t_1;
-  PyObject *(*__pyx_t_2)(PyObject *);
+  boost::shared_ptr<Grammar> *grammar;
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":8
- *     return ' '.join(w.encode('utf8') if isinstance(w, unicode) else str(w) for w in phrase)
+/* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":4
+ * cimport kbest
  * 
- * cdef class NT:             # <<<<<<<<<<<<<<
- *     cdef public bytes cat
- *     cdef public unsigned ref
+ * cdef class Hypergraph:             # <<<<<<<<<<<<<<
+ *     cdef hypergraph.Hypergraph* hg
+ *     cdef MT19937* rng
  */
-struct __pyx_obj_5_cdec_NT {
+struct __pyx_obj_4cdec_5_cdec_Hypergraph {
   PyObject_HEAD
-  PyObject *cat;
-  unsigned int ref;
+  struct __pyx_vtabstruct_4cdec_5_cdec_Hypergraph *__pyx_vtab;
+  Hypergraph *hg;
+  MT19937 *rng;
+};
+
+
+/* "cdec/_cdec.pyx":47
+ *     cdef DenseVector weights
+ * 
+ *     def __init__(self, config_str=None, **config):             # <<<<<<<<<<<<<<
+ *         """Decoder('formalism = scfg') -> initialize from configuration string
+ *         Decoder(formalism='scfg') -> initialize from named parameters
+ */
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_24___init__ {
+  PyObject_HEAD
+  PyObject *__pyx_v_config;
+};
+
+
+/* "/home/mdenkows/cdec/python/cdec/mteval.pxi":65
+ *         return result
+ * 
+ * cdef class CandidateSet:             # <<<<<<<<<<<<<<
+ *     cdef shared_ptr[mteval.SegmentEvaluator]* scorer
+ *     cdef mteval.EvaluationMetric* metric
+ */
+struct __pyx_obj_4cdec_5_cdec_CandidateSet {
+  PyObject_HEAD
+  boost::shared_ptr<SegmentEvaluator> *scorer;
+  EvaluationMetric *metric;
+  training::CandidateSet *cs;
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/cdec.sa._sa.pxd":3
+/* "cdec/sa/_sa.pxd":3
  * from libc.stdio cimport FILE
  * 
  * cdef class FloatList:             # <<<<<<<<<<<<<<
@@ -960,444 +1023,381 @@ struct __pyx_obj_4cdec_2sa_3_sa_FloatList {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":196
- *         return vector
+/* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":62
+ *             del derivations
  * 
- * cdef class HypergraphEdge:             # <<<<<<<<<<<<<<
- *     cdef hypergraph.Hypergraph* hg
- *     cdef hypergraph.HypergraphEdge* edge
+ *     def kbest_trees(self, size):             # <<<<<<<<<<<<<<
+ *         """hg.kbest_trees(size) -> List of k-best trees in the hypergraph."""
+ *         cdef kbest.KBestDerivations[vector[WordID], kbest.FTreeTraversal]* f_derivations = new kbest.KBestDerivations[vector[WordID], kbest.FTreeTraversal](self.hg[0], size)
  */
-struct __pyx_obj_5_cdec_HypergraphEdge {
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees {
   PyObject_HEAD
-  struct __pyx_vtabstruct_5_cdec_HypergraphEdge *__pyx_vtab;
-  Hypergraph *hg;
-  Hypergraph::Edge *edge;
-  struct __pyx_obj_5_cdec_TRule *trule;
+  KBest::KBestDerivations<std::vector<WordID>,ETreeTraversal>::Derivation *__pyx_v_e_derivation;
+  KBest::KBestDerivations<std::vector<WordID>,ETreeTraversal> *__pyx_v_e_derivations;
+  PyObject *__pyx_v_e_tree;
+  KBest::KBestDerivations<std::vector<WordID>,FTreeTraversal>::Derivation *__pyx_v_f_derivation;
+  KBest::KBestDerivations<std::vector<WordID>,FTreeTraversal> *__pyx_v_f_derivations;
+  PyObject *__pyx_v_f_tree;
+  unsigned int __pyx_v_k;
+  struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_self;
+  PyObject *__pyx_v_size;
+  unsigned int __pyx_t_0;
+  long __pyx_t_1;
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":72
- *         self.vector.set_value(fid, value)
+/* "/home/mdenkows/cdec/python/cdec/lattice.pxi":61
+ *             yield self[i]
  * 
- *     def __iter__(self):             # <<<<<<<<<<<<<<
- *         cdef FastSparseVector[weight_t].const_iterator* it = new FastSparseVector[weight_t].const_iterator(self.vector[0], False)
- *         cdef unsigned i
+ *     def todot(self):             # <<<<<<<<<<<<<<
+ *         """lattice.todot() -> Representation of the lattice in GraphViz dot format."""
+ *         def lines():
  */
-struct __pyx_obj_5_cdec___pyx_scope_struct_1___iter__ {
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_19_todot {
   PyObject_HEAD
-  unsigned int __pyx_v_i;
-  FastSparseVector<weight_t>::const_iterator *__pyx_v_it;
-  struct __pyx_obj_5_cdec_SparseVector *__pyx_v_self;
-  size_t __pyx_t_0;
-  unsigned int __pyx_t_1;
+  struct __pyx_obj_4cdec_5_cdec_Lattice *__pyx_v_self;
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":256
+/* "/home/mdenkows/cdec/python/cdec/grammar.pxi":172
+ *             self.rule.get().lhs_ = -TDConvert((<NT> lhs).cat)
  * 
- *     property in_edges:
- *         def __get__(self):             # <<<<<<<<<<<<<<
- *             cdef unsigned i
- *             for i in range(self.node.in_edges_.size()):
+ *     def __str__(self):             # <<<<<<<<<<<<<<
+ *         scores = ' '.join('%s=%s' % feat for feat in self.scores)
+ *         return '%s ||| %s ||| %s ||| %s' % (self.lhs,
  */
-struct __pyx_obj_5_cdec___pyx_scope_struct_16___get__ {
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_5___str__ {
   PyObject_HEAD
-  unsigned int __pyx_v_i;
-  struct __pyx_obj_5_cdec_HypergraphNode *__pyx_v_self;
-  size_t __pyx_t_0;
-  unsigned int __pyx_t_1;
+  struct __pyx_obj_4cdec_5_cdec_TRule *__pyx_v_self;
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":131
+/* "/home/mdenkows/cdec/python/cdec/mteval.pxi":100
+ *         self.cs.AddKBestCandidates(hypergraph.hg[0], k, self.scorer.get())
  * 
- *     property a:
- *         def __get__(self):             # <<<<<<<<<<<<<<
- *             cdef unsigned i
- *             cdef vector[grammar.AlignmentPoint]* a = &self.rule.get().a_
+ * cdef class SegmentEvaluator:             # <<<<<<<<<<<<<<
+ *     cdef shared_ptr[mteval.SegmentEvaluator]* scorer
+ *     cdef mteval.EvaluationMetric* metric
  */
-struct __pyx_obj_5_cdec___pyx_scope_struct_4___get__ {
+struct __pyx_obj_4cdec_5_cdec_SegmentEvaluator {
   PyObject_HEAD
-  std::vector<AlignmentPoint> *__pyx_v_a;
-  unsigned int __pyx_v_i;
-  struct __pyx_obj_5_cdec_TRule *__pyx_v_self;
-  size_t __pyx_t_0;
-  unsigned int __pyx_t_1;
+  boost::shared_ptr<SegmentEvaluator> *scorer;
+  EvaluationMetric *metric;
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":56
- *         return unicode(str(self), 'utf8')
+/* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":256
  * 
- *     def __iter__(self):             # <<<<<<<<<<<<<<
- *         cdef unsigned i
- *         for i in range(len(self)):
+ *     property in_edges:
+ *         def __get__(self):             # <<<<<<<<<<<<<<
+ *             cdef unsigned i
+ *             for i in range(self.node.in_edges_.size()):
  */
-struct __pyx_obj_5_cdec___pyx_scope_struct_18___iter__ {
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_16___get__ {
   PyObject_HEAD
   unsigned int __pyx_v_i;
-  struct __pyx_obj_5_cdec_Lattice *__pyx_v_self;
-  Py_ssize_t __pyx_t_0;
+  struct __pyx_obj_4cdec_5_cdec_HypergraphNode *__pyx_v_self;
+  size_t __pyx_t_0;
   unsigned int __pyx_t_1;
 };
 
 
-/* "_cdec.pyx":43
- *             yield key, str(value)
- * 
- * cdef class Decoder:             # <<<<<<<<<<<<<<
- *     cdef decoder.Decoder* dec
- *     cdef DenseVector weights
+/* "cdec/_cdec.pyx":56
+ *                     'csplit', 'tagger', 'lexalign'):
+ *                 raise InvalidConfig('formalism "%s" unknown' % formalism)
+ *             config_str = '\n'.join('%s = %s' % kv for kv in _make_config(config))             # <<<<<<<<<<<<<<
+ *         cdef istringstream* config_stream = new istringstream(config_str)
+ *         self.dec = new decoder.Decoder(config_stream)
  */
-struct __pyx_obj_5_cdec_Decoder {
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_25_genexpr {
   PyObject_HEAD
-  Decoder *dec;
-  struct __pyx_obj_5_cdec_DenseVector *weights;
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_24___init__ *__pyx_outer_scope;
+  PyObject *__pyx_v_kv;
+  PyObject *__pyx_t_0;
+  Py_ssize_t __pyx_t_1;
+  PyObject *(*__pyx_t_2)(PyObject *);
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":246
- *         raise NotImplemented('comparison not implemented for HypergraphEdge')
+/* "/home/mdenkows/cdec/python/cdec/grammar.pxi":6
  * 
- * cdef class HypergraphNode:             # <<<<<<<<<<<<<<
- *     cdef hypergraph.Hypergraph* hg
- *     cdef hypergraph.HypergraphNode* node
- */
-struct __pyx_obj_5_cdec_HypergraphNode {
-  PyObject_HEAD
-  struct __pyx_vtabstruct_5_cdec_HypergraphNode *__pyx_vtab;
-  Hypergraph *hg;
-  Hypergraph::Node *node;
-};
-
-
-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":48
- *         return sparse
- * 
- * cdef class SparseVector:             # <<<<<<<<<<<<<<
- *     cdef FastSparseVector[weight_t]* vector
+ * def _phrase(phrase):
+ *     return ' '.join(w.encode('utf8') if isinstance(w, unicode) else str(w) for w in phrase)             # <<<<<<<<<<<<<<
  * 
+ * cdef class NT:
  */
-struct __pyx_obj_5_cdec_SparseVector {
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_3_genexpr {
   PyObject_HEAD
-  FastSparseVector<weight_t> *vector;
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_2__phrase *__pyx_outer_scope;
+  PyObject *__pyx_v_w;
+  PyObject *__pyx_t_0;
+  Py_ssize_t __pyx_t_1;
+  PyObject *(*__pyx_t_2)(PyObject *);
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":262
+/* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":97
+ *             del derivations
  * 
- *     property out_edges:
- *         def __get__(self):             # <<<<<<<<<<<<<<
- *             cdef unsigned i
- *             for i in range(self.node.out_edges_.size()):
+ *     def sample(self, unsigned n):             # <<<<<<<<<<<<<<
+ *         """hg.sample(n) -> Sample of n hypotheses from the hypergraph."""
+ *         cdef vector[hypergraph.Hypothesis]* hypos = new vector[hypergraph.Hypothesis]()
  */
-struct __pyx_obj_5_cdec___pyx_scope_struct_17___get__ {
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_11_sample {
   PyObject_HEAD
-  unsigned int __pyx_v_i;
-  struct __pyx_obj_5_cdec_HypergraphNode *__pyx_v_self;
+  std::vector<HypergraphSampler::Hypothesis> *__pyx_v_hypos;
+  unsigned int __pyx_v_k;
+  unsigned int __pyx_v_n;
+  struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_self;
   size_t __pyx_t_0;
   unsigned int __pyx_t_1;
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":32
- *         self.vector[0][fid] = value
+/* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":49
+ *         return unicode(hypergraph.JoshuaVisualizationString(self.hg[0]).c_str(), 'utf8')
  * 
- *     def __iter__(self):             # <<<<<<<<<<<<<<
- *         cdef unsigned fid
- *         for fid in range(1, self.vector.size()):
+ *     def kbest(self, size):             # <<<<<<<<<<<<<<
+ *         """hg.kbest(size) -> List of k-best hypotheses in the hypergraph."""
+ *         cdef kbest.KBestDerivations[vector[WordID], kbest.ESentenceTraversal]* derivations = new kbest.KBestDerivations[vector[WordID], kbest.ESentenceTraversal](self.hg[0], size)
  */
-struct __pyx_obj_5_cdec___pyx_scope_struct____iter__ {
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_8_kbest {
   PyObject_HEAD
-  unsigned int __pyx_v_fid;
-  struct __pyx_obj_5_cdec_DenseVector *__pyx_v_self;
-  size_t __pyx_t_0;
-  unsigned int __pyx_t_1;
+  KBest::KBestDerivations<std::vector<WordID>,ESentenceTraversal>::Derivation *__pyx_v_derivation;
+  KBest::KBestDerivations<std::vector<WordID>,ESentenceTraversal> *__pyx_v_derivations;
+  unsigned int __pyx_v_k;
+  struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_self;
+  PyObject *__pyx_v_size;
+  unsigned int __pyx_t_0;
+  long __pyx_t_1;
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":44
- *         return self.stats.size()
+/* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":167
  * 
- *     def __iter__(self):             # <<<<<<<<<<<<<<
- *         for i in range(len(self)):
- *             yield self[i]
+ *     property nodes:
+ *         def __get__(self):             # <<<<<<<<<<<<<<
+ *             cdef unsigned i
+ *             for i in range(self.hg.nodes_.size()):
  */
-struct __pyx_obj_5_cdec___pyx_scope_struct_21___iter__ {
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_14___get__ {
   PyObject_HEAD
-  PyObject *__pyx_v_i;
-  struct __pyx_obj_5_cdec_SufficientStats *__pyx_v_self;
-  Py_ssize_t __pyx_t_0;
-  PyObject *__pyx_t_1;
-  PyObject *(*__pyx_t_2)(PyObject *);
+  unsigned int __pyx_v_i;
+  struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_self;
+  size_t __pyx_t_0;
+  unsigned int __pyx_t_1;
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":3
- * from cython.operator cimport preincrement as pinc
+/* "cdec/sa/_sa.pxd":29
+ *     cdef FloatList values
  * 
- * cdef class DenseVector:             # <<<<<<<<<<<<<<
- *     cdef vector[weight_t]* vector
- *     cdef bint owned # if True, do not manage memory
+ * cdef class Phrase:             # <<<<<<<<<<<<<<
+ *     cdef int *syms
+ *     cdef int n, *varpos, n_vars
  */
-struct __pyx_obj_5_cdec_DenseVector {
+struct __pyx_obj_4cdec_2sa_3_sa_Phrase {
   PyObject_HEAD
-  std::vector<weight_t> *vector;
-  int owned;
+  struct __pyx_vtabstruct_4cdec_2sa_3_sa_Phrase *__pyx_vtab;
+  int *syms;
+  int n;
+  int *varpos;
+  int n_vars;
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":199
+/* "/home/mdenkows/cdec/python/cdec/grammar.pxi":199
  *         del self.grammar
  * 
  *     def __iter__(self):             # <<<<<<<<<<<<<<
  *         cdef grammar.const_GrammarIter* root = self.grammar.get().GetRoot()
  *         cdef grammar.const_RuleBin* rbin = root.GetRules()
  */
-struct __pyx_obj_5_cdec___pyx_scope_struct_7___iter__ {
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_7___iter__ {
   PyObject_HEAD
   unsigned int __pyx_v_i;
   const RuleBin *__pyx_v_rbin;
   const GrammarIter *__pyx_v_root;
-  struct __pyx_obj_5_cdec_Grammar *__pyx_v_self;
-  struct __pyx_obj_5_cdec_TRule *__pyx_v_trule;
+  struct __pyx_obj_4cdec_5_cdec_Grammar *__pyx_v_self;
+  struct __pyx_obj_4cdec_5_cdec_TRule *__pyx_v_trule;
   int __pyx_t_0;
   unsigned int __pyx_t_1;
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":176
- *         out.fields[i] = ss[i]
+/* "/home/mdenkows/cdec/python/cdec/grammar.pxi":217
+ *             self.grammar.get().SetGrammarName(name)
  * 
- * cdef class Metric:             # <<<<<<<<<<<<<<
- *     cdef Scorer scorer
- *     def __cinit__(self):
+ * cdef class TextGrammar(Grammar):             # <<<<<<<<<<<<<<
+ *     def __init__(self, rules):
+ *         """TextGrammar(rules) -> SCFG Grammar containing the rules."""
  */
-struct __pyx_obj_5_cdec_Metric {
-  PyObject_HEAD
-  struct __pyx_obj_5_cdec_Scorer *scorer;
+struct __pyx_obj_4cdec_5_cdec_TextGrammar {
+  struct __pyx_obj_4cdec_5_cdec_Grammar __pyx_base;
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":26
- *             return fmap
+/* "cdec/_cdec.pyx":43
+ *             yield key, str(value)
  * 
- * cdef class SufficientStats:             # <<<<<<<<<<<<<<
- *     cdef mteval.SufficientStats* stats
- *     cdef mteval.EvaluationMetric* metric
+ * cdef class Decoder:             # <<<<<<<<<<<<<<
+ *     cdef decoder.Decoder* dec
+ *     cdef DenseVector weights
  */
-struct __pyx_obj_5_cdec_SufficientStats {
+struct __pyx_obj_4cdec_5_cdec_Decoder {
   PyObject_HEAD
-  SufficientStats *stats;
-  EvaluationMetric *metric;
+  Decoder *dec;
+  struct __pyx_obj_4cdec_5_cdec_DenseVector *weights;
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":49
- *         return unicode(hypergraph.JoshuaVisualizationString(self.hg[0]).c_str(), 'utf8')
+/* "/home/mdenkows/cdec/python/cdec/mteval.pxi":12
+ *         return stats
  * 
- *     def kbest(self, size):             # <<<<<<<<<<<<<<
- *         """hg.kbest(size) -> List of k-best hypotheses in the hypergraph."""
- *         cdef kbest.KBestDerivations[vector[WordID], kbest.ESentenceTraversal]* derivations = new kbest.KBestDerivations[vector[WordID], kbest.ESentenceTraversal](self.hg[0], size)
+ * cdef class Candidate:             # <<<<<<<<<<<<<<
+ *     cdef mteval.const_Candidate* candidate
+ *     cdef public float score
  */
-struct __pyx_obj_5_cdec___pyx_scope_struct_8_kbest {
+struct __pyx_obj_4cdec_5_cdec_Candidate {
   PyObject_HEAD
-  KBest::KBestDerivations<std::vector<WordID>,ESentenceTraversal>::Derivation *__pyx_v_derivation;
-  KBest::KBestDerivations<std::vector<WordID>,ESentenceTraversal> *__pyx_v_derivations;
-  unsigned int __pyx_v_k;
-  struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self;
-  PyObject *__pyx_v_size;
-  unsigned int __pyx_t_0;
-  long __pyx_t_1;
+  const training::Candidate *candidate;
+  float score;
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":81
- *             del e_derivations
+/* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":262
  * 
- *     def kbest_features(self, size):             # <<<<<<<<<<<<<<
- *         """hg.kbest_trees(size) -> List of k-best feature vectors in the hypergraph."""
- *         cdef kbest.KBestDerivations[FastSparseVector[weight_t], kbest.FeatureVectorTraversal]* derivations = new kbest.KBestDerivations[FastSparseVector[weight_t], kbest.FeatureVectorTraversal](self.hg[0], size)
+ *     property out_edges:
+ *         def __get__(self):             # <<<<<<<<<<<<<<
+ *             cdef unsigned i
+ *             for i in range(self.node.out_edges_.size()):
  */
-struct __pyx_obj_5_cdec___pyx_scope_struct_10_kbest_features {
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_17___get__ {
   PyObject_HEAD
-  KBest::KBestDerivations<FastSparseVector<weight_t>,FeatureVectorTraversal>::Derivation *__pyx_v_derivation;
-  KBest::KBestDerivations<FastSparseVector<weight_t>,FeatureVectorTraversal> *__pyx_v_derivations;
-  struct __pyx_obj_5_cdec_SparseVector *__pyx_v_fmap;
-  unsigned int __pyx_v_k;
-  struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self;
-  PyObject *__pyx_v_size;
-  unsigned int __pyx_t_0;
-  long __pyx_t_1;
+  unsigned int __pyx_v_i;
+  struct __pyx_obj_4cdec_5_cdec_HypergraphNode *__pyx_v_self;
+  size_t __pyx_t_0;
+  unsigned int __pyx_t_1;
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":216
+/* "/home/mdenkows/cdec/python/cdec/lattice.pxi":56
+ *         return unicode(str(self), 'utf8')
  * 
- *     property tail_nodes:
- *         def __get__(self):             # <<<<<<<<<<<<<<
- *             cdef unsigned i
- *             for i in range(self.edge.tail_nodes_.size()):
+ *     def __iter__(self):             # <<<<<<<<<<<<<<
+ *         cdef unsigned i
+ *         for i in range(len(self)):
  */
-struct __pyx_obj_5_cdec___pyx_scope_struct_15___get__ {
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_18___iter__ {
   PyObject_HEAD
   unsigned int __pyx_v_i;
-  struct __pyx_obj_5_cdec_HypergraphEdge *__pyx_v_self;
-  unsigned int __pyx_t_0;
+  struct __pyx_obj_4cdec_5_cdec_Lattice *__pyx_v_self;
+  Py_ssize_t __pyx_t_0;
   unsigned int __pyx_t_1;
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":172
- *             self.rule.get().lhs_ = -TDConvert((<NT> lhs).cat)
+/* "/home/mdenkows/cdec/python/cdec/vectors.pxi":32
+ *         self.vector[0][fid] = value
  * 
- *     def __str__(self):             # <<<<<<<<<<<<<<
- *         scores = ' '.join('%s=%s' % feat for feat in self.scores)
- *         return '%s ||| %s ||| %s ||| %s' % (self.lhs,
+ *     def __iter__(self):             # <<<<<<<<<<<<<<
+ *         cdef unsigned fid
+ *         for fid in range(1, self.vector.size()):
  */
-struct __pyx_obj_5_cdec___pyx_scope_struct_5___str__ {
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct____iter__ {
   PyObject_HEAD
-  struct __pyx_obj_5_cdec_TRule *__pyx_v_self;
+  unsigned int __pyx_v_fid;
+  struct __pyx_obj_4cdec_5_cdec_DenseVector *__pyx_v_self;
+  size_t __pyx_t_0;
+  unsigned int __pyx_t_1;
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":6
+/* "/home/mdenkows/cdec/python/cdec/grammar.pxi":173
  * 
- * def _phrase(phrase):
- *     return ' '.join(w.encode('utf8') if isinstance(w, unicode) else str(w) for w in phrase)             # <<<<<<<<<<<<<<
- * 
- * cdef class NT:
+ *     def __str__(self):
+ *         scores = ' '.join('%s=%s' % feat for feat in self.scores)             # <<<<<<<<<<<<<<
+ *         return '%s ||| %s ||| %s ||| %s' % (self.lhs,
+ *                 _phrase(self.f), _phrase(self.e), scores)
  */
-struct __pyx_obj_5_cdec___pyx_scope_struct_3_genexpr {
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_6_genexpr {
   PyObject_HEAD
-  struct __pyx_obj_5_cdec___pyx_scope_struct_2__phrase *__pyx_outer_scope;
-  PyObject *__pyx_v_w;
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_5___str__ *__pyx_outer_scope;
+  PyObject *__pyx_v_feat;
   PyObject *__pyx_t_0;
   Py_ssize_t __pyx_t_1;
   PyObject *(*__pyx_t_2)(PyObject *);
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":62
- *             del derivations
- * 
- *     def kbest_trees(self, size):             # <<<<<<<<<<<<<<
- *         """hg.kbest_trees(size) -> List of k-best trees in the hypergraph."""
- *         cdef kbest.KBestDerivations[vector[WordID], kbest.FTreeTraversal]* f_derivations = new kbest.KBestDerivations[vector[WordID], kbest.FTreeTraversal](self.hg[0], size)
- */
-struct __pyx_obj_5_cdec___pyx_scope_struct_9_kbest_trees {
-  PyObject_HEAD
-  KBest::KBestDerivations<std::vector<WordID>,ETreeTraversal>::Derivation *__pyx_v_e_derivation;
-  KBest::KBestDerivations<std::vector<WordID>,ETreeTraversal> *__pyx_v_e_derivations;
-  PyObject *__pyx_v_e_tree;
-  KBest::KBestDerivations<std::vector<WordID>,FTreeTraversal>::Derivation *__pyx_v_f_derivation;
-  KBest::KBestDerivations<std::vector<WordID>,FTreeTraversal> *__pyx_v_f_derivations;
-  PyObject *__pyx_v_f_tree;
-  unsigned int __pyx_v_k;
-  struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self;
-  PyObject *__pyx_v_size;
-  unsigned int __pyx_t_0;
-  long __pyx_t_1;
-};
-
-
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":4
- * cimport kbest
- * 
- * cdef class Hypergraph:             # <<<<<<<<<<<<<<
- *     cdef hypergraph.Hypergraph* hg
- *     cdef MT19937* rng
- */
-struct __pyx_obj_5_cdec_Hypergraph {
-  PyObject_HEAD
-  struct __pyx_vtabstruct_5_cdec_Hypergraph *__pyx_vtab;
-  Hypergraph *hg;
-  MT19937 *rng;
-};
-
-
-/* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":3
- * cimport lattice
- * 
- * cdef class Lattice:             # <<<<<<<<<<<<<<
- *     cdef lattice.Lattice* lattice
- * 
- */
-struct __pyx_obj_5_cdec_Lattice {
-  PyObject_HEAD
-  Lattice *lattice;
-};
-
-
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":97
- *             del derivations
+/* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":108
+ *             del hypos
  * 
- *     def sample(self, unsigned n):             # <<<<<<<<<<<<<<
- *         """hg.sample(n) -> Sample of n hypotheses from the hypergraph."""
- *         cdef vector[hypergraph.Hypothesis]* hypos = new vector[hypergraph.Hypothesis]()
+ *     def sample_trees(self, unsigned n):             # <<<<<<<<<<<<<<
+ *        """hg.sample_trees(n) -> Sample of n trees from the hypergraph."""
+ *        cdef vector[string]* trees = new vector[string]()
  */
-struct __pyx_obj_5_cdec___pyx_scope_struct_11_sample {
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_12_sample_trees {
   PyObject_HEAD
-  std::vector<HypergraphSampler::Hypothesis> *__pyx_v_hypos;
   unsigned int __pyx_v_k;
   unsigned int __pyx_v_n;
-  struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self;
+  struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_self;
+  std::vector<std::string> *__pyx_v_trees;
   size_t __pyx_t_0;
   unsigned int __pyx_t_1;
 };
 
 
-/* "_cdec.pyx":32
- *     SetSilent(yn)
+/* "/home/mdenkows/cdec/python/cdec/grammar.pxi":131
  * 
- * def _make_config(config):             # <<<<<<<<<<<<<<
- *     for key, value in config.items():
- *         if isinstance(value, dict):
+ *     property a:
+ *         def __get__(self):             # <<<<<<<<<<<<<<
+ *             cdef unsigned i
+ *             cdef vector[grammar.AlignmentPoint]* a = &self.rule.get().a_
  */
-struct __pyx_obj_5_cdec___pyx_scope_struct_23__make_config {
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_4___get__ {
   PyObject_HEAD
-  PyObject *__pyx_v_config;
-  PyObject *__pyx_v_info;
-  PyObject *__pyx_v_key;
-  PyObject *__pyx_v_name;
-  PyObject *__pyx_v_value;
-  PyObject *__pyx_t_0;
-  PyObject *__pyx_t_1;
-  Py_ssize_t __pyx_t_2;
-  PyObject *(*__pyx_t_3)(PyObject *);
-  Py_ssize_t __pyx_t_4;
-  PyObject *(*__pyx_t_5)(PyObject *);
+  std::vector<AlignmentPoint> *__pyx_v_a;
+  unsigned int __pyx_v_i;
+  struct __pyx_obj_4cdec_5_cdec_TRule *__pyx_v_self;
+  size_t __pyx_t_0;
+  unsigned int __pyx_t_1;
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":217
- *             self.grammar.get().SetGrammarName(name)
+/* "/home/mdenkows/cdec/python/cdec/vectors.pxi":72
+ *         self.vector.set_value(fid, value)
  * 
- * cdef class TextGrammar(Grammar):             # <<<<<<<<<<<<<<
- *     def __init__(self, rules):
- *         """TextGrammar(rules) -> SCFG Grammar containing the rules."""
+ *     def __iter__(self):             # <<<<<<<<<<<<<<
+ *         cdef FastSparseVector[weight_t].const_iterator* it = new FastSparseVector[weight_t].const_iterator(self.vector[0], False)
+ *         cdef unsigned i
  */
-struct __pyx_obj_5_cdec_TextGrammar {
-  struct __pyx_obj_5_cdec_Grammar __pyx_base;
+struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_1___iter__ {
+  PyObject_HEAD
+  unsigned int __pyx_v_i;
+  FastSparseVector<weight_t>::const_iterator *__pyx_v_it;
+  struct __pyx_obj_4cdec_5_cdec_SparseVector *__pyx_v_self;
+  size_t __pyx_t_0;
+  unsigned int __pyx_t_1;
 };
 
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":4
- * cimport kbest
+/* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":246
+ *         raise NotImplemented('comparison not implemented for HypergraphEdge')
  * 
- * cdef class Hypergraph:             # <<<<<<<<<<<<<<
+ * cdef class HypergraphNode:             # <<<<<<<<<<<<<<
  *     cdef hypergraph.Hypergraph* hg
- *     cdef MT19937* rng
+ *     cdef hypergraph.HypergraphNode* node
  */
 
-struct __pyx_vtabstruct_5_cdec_Hypergraph {
-  MT19937 *(*_rng)(struct __pyx_obj_5_cdec_Hypergraph *);
+struct __pyx_vtabstruct_4cdec_5_cdec_HypergraphNode {
+  PyObject *(*init)(struct __pyx_obj_4cdec_5_cdec_HypergraphNode *, Hypergraph *, unsigned int);
 };
-static struct __pyx_vtabstruct_5_cdec_Hypergraph *__pyx_vtabptr_5_cdec_Hypergraph;
+static struct __pyx_vtabstruct_4cdec_5_cdec_HypergraphNode *__pyx_vtabptr_4cdec_5_cdec_HypergraphNode;
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":196
+/* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":196
  *         return vector
  * 
  * cdef class HypergraphEdge:             # <<<<<<<<<<<<<<
@@ -1405,13 +1405,13 @@ static struct __pyx_vtabstruct_5_cdec_Hypergraph *__pyx_vtabptr_5_cdec_Hypergrap
  *     cdef hypergraph.HypergraphEdge* edge
  */
 
-struct __pyx_vtabstruct_5_cdec_HypergraphEdge {
-  PyObject *(*init)(struct __pyx_obj_5_cdec_HypergraphEdge *, Hypergraph *, unsigned int);
+struct __pyx_vtabstruct_4cdec_5_cdec_HypergraphEdge {
+  PyObject *(*init)(struct __pyx_obj_4cdec_5_cdec_HypergraphEdge *, Hypergraph *, unsigned int);
 };
-static struct __pyx_vtabstruct_5_cdec_HypergraphEdge *__pyx_vtabptr_5_cdec_HypergraphEdge;
+static struct __pyx_vtabstruct_4cdec_5_cdec_HypergraphEdge *__pyx_vtabptr_4cdec_5_cdec_HypergraphEdge;
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/cdec.sa._sa.pxd":12
+/* "cdec/sa/_sa.pxd":12
  *     cdef void read_handle(self, FILE* f)
  * 
  * cdef class IntList:             # <<<<<<<<<<<<<<
@@ -1431,7 +1431,7 @@ struct __pyx_vtabstruct_4cdec_2sa_3_sa_IntList {
 static struct __pyx_vtabstruct_4cdec_2sa_3_sa_IntList *__pyx_vtabptr_4cdec_2sa_3_sa_IntList;
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/cdec.sa._sa.pxd":3
+/* "cdec/sa/_sa.pxd":3
  * from libc.stdio cimport FILE
  * 
  * cdef class FloatList:             # <<<<<<<<<<<<<<
@@ -1447,7 +1447,7 @@ struct __pyx_vtabstruct_4cdec_2sa_3_sa_FloatList {
 static struct __pyx_vtabstruct_4cdec_2sa_3_sa_FloatList *__pyx_vtabptr_4cdec_2sa_3_sa_FloatList;
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/cdec.sa._sa.pxd":29
+/* "cdec/sa/_sa.pxd":29
  *     cdef FloatList values
  * 
  * cdef class Phrase:             # <<<<<<<<<<<<<<
@@ -1462,18 +1462,18 @@ struct __pyx_vtabstruct_4cdec_2sa_3_sa_Phrase {
 static struct __pyx_vtabstruct_4cdec_2sa_3_sa_Phrase *__pyx_vtabptr_4cdec_2sa_3_sa_Phrase;
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":246
- *         raise NotImplemented('comparison not implemented for HypergraphEdge')
+/* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":4
+ * cimport kbest
  * 
- * cdef class HypergraphNode:             # <<<<<<<<<<<<<<
+ * cdef class Hypergraph:             # <<<<<<<<<<<<<<
  *     cdef hypergraph.Hypergraph* hg
- *     cdef hypergraph.HypergraphNode* node
+ *     cdef MT19937* rng
  */
 
-struct __pyx_vtabstruct_5_cdec_HypergraphNode {
-  PyObject *(*init)(struct __pyx_obj_5_cdec_HypergraphNode *, Hypergraph *, unsigned int);
+struct __pyx_vtabstruct_4cdec_5_cdec_Hypergraph {
+  MT19937 *(*_rng)(struct __pyx_obj_4cdec_5_cdec_Hypergraph *);
 };
-static struct __pyx_vtabstruct_5_cdec_HypergraphNode *__pyx_vtabptr_5_cdec_HypergraphNode;
+static struct __pyx_vtabstruct_4cdec_5_cdec_Hypergraph *__pyx_vtabptr_4cdec_5_cdec_Hypergraph;
 #ifndef CYTHON_REFNANNY
   #define CYTHON_REFNANNY 0
 #endif
@@ -1895,15 +1895,15 @@ static int __Pyx_InitStrings(__Pyx_StringTabEntry *t); /*proto*/
 
 /* Module declarations from 'libcpp.pair' */
 
-/* Module declarations from 'utils' */
+/* Module declarations from 'cdec.utils' */
 
-/* Module declarations from 'grammar' */
+/* Module declarations from 'cdec.grammar' */
 
-/* Module declarations from 'lattice' */
+/* Module declarations from 'cdec.lattice' */
 
-/* Module declarations from 'hypergraph' */
+/* Module declarations from 'cdec.hypergraph' */
 
-/* Module declarations from 'decoder' */
+/* Module declarations from 'cdec.decoder' */
 
 /* Module declarations from 'libc.stdio' */
 
@@ -1918,66 +1918,66 @@ static char *(*__pyx_f_4cdec_2sa_3_sa_sym_tocat)(int); /*proto*/
 static int (*__pyx_f_4cdec_2sa_3_sa_sym_isvar)(int); /*proto*/
 static int (*__pyx_f_4cdec_2sa_3_sa_sym_getindex)(int); /*proto*/
 
-/* Module declarations from 'kbest' */
-
-/* Module declarations from 'mteval' */
-
-/* Module declarations from '_cdec' */
-static PyTypeObject *__pyx_ptype_5_cdec_Scorer = 0;
-static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_24___init__ = 0;
-static PyTypeObject *__pyx_ptype_5_cdec_NTRef = 0;
-static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_22___iter__ = 0;
-static PyTypeObject *__pyx_ptype_5_cdec_Grammar = 0;
-static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_20_lines = 0;
-static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_12_sample_trees = 0;
-static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_13___get__ = 0;
-static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_2__phrase = 0;
-static PyTypeObject *__pyx_ptype_5_cdec_CandidateSet = 0;
-static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_14___get__ = 0;
-static PyTypeObject *__pyx_ptype_5_cdec_TRule = 0;
-static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_3_genexpr = 0;
-static PyTypeObject *__pyx_ptype_5_cdec_MRule = 0;
-static PyTypeObject *__pyx_ptype_5_cdec_SegmentEvaluator = 0;
-static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_25_genexpr = 0;
-static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_19_todot = 0;
-static PyTypeObject *__pyx_ptype_5_cdec_Candidate = 0;
-static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_6_genexpr = 0;
-static PyTypeObject *__pyx_ptype_5_cdec_NT = 0;
-static PyTypeObject *__pyx_ptype_5_cdec_HypergraphEdge = 0;
-static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_1___iter__ = 0;
-static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_16___get__ = 0;
-static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_4___get__ = 0;
-static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_18___iter__ = 0;
-static PyTypeObject *__pyx_ptype_5_cdec_Decoder = 0;
-static PyTypeObject *__pyx_ptype_5_cdec_HypergraphNode = 0;
-static PyTypeObject *__pyx_ptype_5_cdec_SparseVector = 0;
-static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_17___get__ = 0;
-static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct____iter__ = 0;
-static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_21___iter__ = 0;
-static PyTypeObject *__pyx_ptype_5_cdec_DenseVector = 0;
-static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_7___iter__ = 0;
-static PyTypeObject *__pyx_ptype_5_cdec_Metric = 0;
-static PyTypeObject *__pyx_ptype_5_cdec_SufficientStats = 0;
-static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_8_kbest = 0;
-static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_10_kbest_features = 0;
-static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_15___get__ = 0;
-static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_5___str__ = 0;
-static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_9_kbest_trees = 0;
-static PyTypeObject *__pyx_ptype_5_cdec_Hypergraph = 0;
-static PyTypeObject *__pyx_ptype_5_cdec_Lattice = 0;
-static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_11_sample = 0;
-static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_23__make_config = 0;
-static PyTypeObject *__pyx_ptype_5_cdec_TextGrammar = 0;
-static PyObject *__pyx_f_5_cdec_as_str(PyObject *, struct __pyx_opt_args_5_cdec_as_str *__pyx_optional_args); /*proto*/
-static struct __pyx_obj_5_cdec_TRule *__pyx_f_5_cdec_convert_rule(struct __pyx_obj_4cdec_2sa_3_sa_Rule *); /*proto*/
-static struct __pyx_obj_5_cdec_SufficientStats *__pyx_f_5_cdec_as_stats(PyObject *, PyObject *); /*proto*/
-static float __pyx_f_5_cdec__compute_score(void *, SufficientStats *); /*proto*/
-static void __pyx_f_5_cdec__compute_sufficient_stats(void *, std::string *, std::vector<std::string> *, SufficientStats *); /*proto*/
+/* Module declarations from 'cdec.kbest' */
+
+/* Module declarations from 'cdec.mteval' */
+
+/* Module declarations from 'cdec._cdec' */
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec_TRule = 0;
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec_MRule = 0;
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec___pyx_scope_struct_22___iter__ = 0;
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec_DenseVector = 0;
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec_SufficientStats = 0;
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec___pyx_scope_struct_21___iter__ = 0;
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec_Metric = 0;
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec_Candidate = 0;
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec_SparseVector = 0;
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec___pyx_scope_struct_15___get__ = 0;
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec_NT = 0;
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec_Lattice = 0;
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec___pyx_scope_struct_23__make_config = 0;
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec_HypergraphEdge = 0;
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec___pyx_scope_struct_2__phrase = 0;
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec___pyx_scope_struct_13___get__ = 0;
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec___pyx_scope_struct_20_lines = 0;
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec_Scorer = 0;
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec_HypergraphNode = 0;
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec___pyx_scope_struct_10_kbest_features = 0;
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec_NTRef = 0;
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec_Grammar = 0;
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec_Hypergraph = 0;
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec___pyx_scope_struct_24___init__ = 0;
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec_CandidateSet = 0;
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees = 0;
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec___pyx_scope_struct_19_todot = 0;
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec___pyx_scope_struct_5___str__ = 0;
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec_SegmentEvaluator = 0;
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec___pyx_scope_struct_16___get__ = 0;
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec___pyx_scope_struct_25_genexpr = 0;
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec___pyx_scope_struct_3_genexpr = 0;
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec___pyx_scope_struct_11_sample = 0;
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec___pyx_scope_struct_8_kbest = 0;
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec___pyx_scope_struct_14___get__ = 0;
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec___pyx_scope_struct_7___iter__ = 0;
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec_TextGrammar = 0;
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec_Decoder = 0;
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec___pyx_scope_struct____iter__ = 0;
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec___pyx_scope_struct_17___get__ = 0;
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec___pyx_scope_struct_18___iter__ = 0;
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec___pyx_scope_struct_6_genexpr = 0;
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec___pyx_scope_struct_12_sample_trees = 0;
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec___pyx_scope_struct_4___get__ = 0;
+static PyTypeObject *__pyx_ptype_4cdec_5_cdec___pyx_scope_struct_1___iter__ = 0;
+static PyObject *__pyx_f_4cdec_5_cdec_as_str(PyObject *, struct __pyx_opt_args_4cdec_5_cdec_as_str *__pyx_optional_args); /*proto*/
+static struct __pyx_obj_4cdec_5_cdec_TRule *__pyx_f_4cdec_5_cdec_convert_rule(struct __pyx_obj_4cdec_2sa_3_sa_Rule *); /*proto*/
+static struct __pyx_obj_4cdec_5_cdec_SufficientStats *__pyx_f_4cdec_5_cdec_as_stats(PyObject *, PyObject *); /*proto*/
+static float __pyx_f_4cdec_5_cdec__compute_score(void *, SufficientStats *); /*proto*/
+static void __pyx_f_4cdec_5_cdec__compute_sufficient_stats(void *, std::string *, std::vector<std::string> *, SufficientStats *); /*proto*/
 static std::string __pyx_convert_string_from_py_(PyObject *); /*proto*/
-#define __Pyx_MODULE_NAME "_cdec"
-int __pyx_module_is_main__cdec = 0;
+#define __Pyx_MODULE_NAME "cdec._cdec"
+int __pyx_module_is_main_cdec___cdec = 0;
 
-/* Implementation of '_cdec' */
+/* Implementation of 'cdec._cdec' */
 static PyObject *__pyx_builtin_Exception;
 static PyObject *__pyx_builtin_TypeError;
 static PyObject *__pyx_builtin_KeyError;
@@ -1989,204 +1989,204 @@ static PyObject *__pyx_builtin_eval;
 static PyObject *__pyx_builtin_enumerate;
 static PyObject *__pyx_builtin_IndexError;
 static PyObject *__pyx_builtin_open;
-static int __pyx_pf_5_cdec_11DenseVector___init__(struct __pyx_obj_5_cdec_DenseVector *__pyx_v_self); /* proto */
-static void __pyx_pf_5_cdec_11DenseVector_2__dealloc__(struct __pyx_obj_5_cdec_DenseVector *__pyx_v_self); /* proto */
-static Py_ssize_t __pyx_pf_5_cdec_11DenseVector_4__len__(struct __pyx_obj_5_cdec_DenseVector *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_11DenseVector_6__getitem__(struct __pyx_obj_5_cdec_DenseVector *__pyx_v_self, char *__pyx_v_fname); /* proto */
-static int __pyx_pf_5_cdec_11DenseVector_8__setitem__(struct __pyx_obj_5_cdec_DenseVector *__pyx_v_self, char *__pyx_v_fname, float __pyx_v_value); /* proto */
-static PyObject *__pyx_pf_5_cdec_11DenseVector_10__iter__(struct __pyx_obj_5_cdec_DenseVector *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_11DenseVector_13dot(struct __pyx_obj_5_cdec_DenseVector *__pyx_v_self, struct __pyx_obj_5_cdec_SparseVector *__pyx_v_other); /* proto */
-static PyObject *__pyx_pf_5_cdec_11DenseVector_15tosparse(struct __pyx_obj_5_cdec_DenseVector *__pyx_v_self); /* proto */
-static int __pyx_pf_5_cdec_12SparseVector___init__(struct __pyx_obj_5_cdec_SparseVector *__pyx_v_self); /* proto */
-static void __pyx_pf_5_cdec_12SparseVector_2__dealloc__(CYTHON_UNUSED struct __pyx_obj_5_cdec_SparseVector *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_12SparseVector_4copy(struct __pyx_obj_5_cdec_SparseVector *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_12SparseVector_6__getitem__(struct __pyx_obj_5_cdec_SparseVector *__pyx_v_self, char *__pyx_v_fname); /* proto */
-static int __pyx_pf_5_cdec_12SparseVector_8__setitem__(struct __pyx_obj_5_cdec_SparseVector *__pyx_v_self, char *__pyx_v_fname, float __pyx_v_value); /* proto */
-static PyObject *__pyx_pf_5_cdec_12SparseVector_10__iter__(struct __pyx_obj_5_cdec_SparseVector *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_12SparseVector_13dot(struct __pyx_obj_5_cdec_SparseVector *__pyx_v_self, PyObject *__pyx_v_other); /* proto */
-static PyObject *__pyx_pf_5_cdec_12SparseVector_15__richcmp__(struct __pyx_obj_5_cdec_SparseVector *__pyx_v_x, struct __pyx_obj_5_cdec_SparseVector *__pyx_v_y, int __pyx_v_op); /* proto */
-static Py_ssize_t __pyx_pf_5_cdec_12SparseVector_17__len__(struct __pyx_obj_5_cdec_SparseVector *__pyx_v_self); /* proto */
-static int __pyx_pf_5_cdec_12SparseVector_19__contains__(struct __pyx_obj_5_cdec_SparseVector *__pyx_v_self, char *__pyx_v_fname); /* proto */
-static PyObject *__pyx_pf_5_cdec_12SparseVector_21__neg__(struct __pyx_obj_5_cdec_SparseVector *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_12SparseVector_23__iadd__(struct __pyx_obj_5_cdec_SparseVector *__pyx_v_self, struct __pyx_obj_5_cdec_SparseVector *__pyx_v_other); /* proto */
-static PyObject *__pyx_pf_5_cdec_12SparseVector_25__isub__(struct __pyx_obj_5_cdec_SparseVector *__pyx_v_self, struct __pyx_obj_5_cdec_SparseVector *__pyx_v_other); /* proto */
-static PyObject *__pyx_pf_5_cdec_12SparseVector_27__imul__(struct __pyx_obj_5_cdec_SparseVector *__pyx_v_self, float __pyx_v_scalar); /* proto */
+static int __pyx_pf_4cdec_5_cdec_11DenseVector___init__(struct __pyx_obj_4cdec_5_cdec_DenseVector *__pyx_v_self); /* proto */
+static void __pyx_pf_4cdec_5_cdec_11DenseVector_2__dealloc__(struct __pyx_obj_4cdec_5_cdec_DenseVector *__pyx_v_self); /* proto */
+static Py_ssize_t __pyx_pf_4cdec_5_cdec_11DenseVector_4__len__(struct __pyx_obj_4cdec_5_cdec_DenseVector *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_11DenseVector_6__getitem__(struct __pyx_obj_4cdec_5_cdec_DenseVector *__pyx_v_self, char *__pyx_v_fname); /* proto */
+static int __pyx_pf_4cdec_5_cdec_11DenseVector_8__setitem__(struct __pyx_obj_4cdec_5_cdec_DenseVector *__pyx_v_self, char *__pyx_v_fname, float __pyx_v_value); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_11DenseVector_10__iter__(struct __pyx_obj_4cdec_5_cdec_DenseVector *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_11DenseVector_13dot(struct __pyx_obj_4cdec_5_cdec_DenseVector *__pyx_v_self, struct __pyx_obj_4cdec_5_cdec_SparseVector *__pyx_v_other); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_11DenseVector_15tosparse(struct __pyx_obj_4cdec_5_cdec_DenseVector *__pyx_v_self); /* proto */
+static int __pyx_pf_4cdec_5_cdec_12SparseVector___init__(struct __pyx_obj_4cdec_5_cdec_SparseVector *__pyx_v_self); /* proto */
+static void __pyx_pf_4cdec_5_cdec_12SparseVector_2__dealloc__(CYTHON_UNUSED struct __pyx_obj_4cdec_5_cdec_SparseVector *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_12SparseVector_4copy(struct __pyx_obj_4cdec_5_cdec_SparseVector *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_12SparseVector_6__getitem__(struct __pyx_obj_4cdec_5_cdec_SparseVector *__pyx_v_self, char *__pyx_v_fname); /* proto */
+static int __pyx_pf_4cdec_5_cdec_12SparseVector_8__setitem__(struct __pyx_obj_4cdec_5_cdec_SparseVector *__pyx_v_self, char *__pyx_v_fname, float __pyx_v_value); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_12SparseVector_10__iter__(struct __pyx_obj_4cdec_5_cdec_SparseVector *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_12SparseVector_13dot(struct __pyx_obj_4cdec_5_cdec_SparseVector *__pyx_v_self, PyObject *__pyx_v_other); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_12SparseVector_15__richcmp__(struct __pyx_obj_4cdec_5_cdec_SparseVector *__pyx_v_x, struct __pyx_obj_4cdec_5_cdec_SparseVector *__pyx_v_y, int __pyx_v_op); /* proto */
+static Py_ssize_t __pyx_pf_4cdec_5_cdec_12SparseVector_17__len__(struct __pyx_obj_4cdec_5_cdec_SparseVector *__pyx_v_self); /* proto */
+static int __pyx_pf_4cdec_5_cdec_12SparseVector_19__contains__(struct __pyx_obj_4cdec_5_cdec_SparseVector *__pyx_v_self, char *__pyx_v_fname); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_12SparseVector_21__neg__(struct __pyx_obj_4cdec_5_cdec_SparseVector *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_12SparseVector_23__iadd__(struct __pyx_obj_4cdec_5_cdec_SparseVector *__pyx_v_self, struct __pyx_obj_4cdec_5_cdec_SparseVector *__pyx_v_other); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_12SparseVector_25__isub__(struct __pyx_obj_4cdec_5_cdec_SparseVector *__pyx_v_self, struct __pyx_obj_4cdec_5_cdec_SparseVector *__pyx_v_other); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_12SparseVector_27__imul__(struct __pyx_obj_4cdec_5_cdec_SparseVector *__pyx_v_self, float __pyx_v_scalar); /* proto */
 #if PY_MAJOR_VERSION < 3
-static PyObject *__pyx_pf_5_cdec_12SparseVector_29__idiv__(struct __pyx_obj_5_cdec_SparseVector *__pyx_v_self, float __pyx_v_scalar); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_12SparseVector_29__idiv__(struct __pyx_obj_4cdec_5_cdec_SparseVector *__pyx_v_self, float __pyx_v_scalar); /* proto */
 #endif
-static PyObject *__pyx_pf_5_cdec_12SparseVector_31__add__(struct __pyx_obj_5_cdec_SparseVector *__pyx_v_x, struct __pyx_obj_5_cdec_SparseVector *__pyx_v_y); /* proto */
-static PyObject *__pyx_pf_5_cdec_12SparseVector_33__sub__(struct __pyx_obj_5_cdec_SparseVector *__pyx_v_x, struct __pyx_obj_5_cdec_SparseVector *__pyx_v_y); /* proto */
-static PyObject *__pyx_pf_5_cdec_12SparseVector_35__mul__(PyObject *__pyx_v_x, PyObject *__pyx_v_y); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_12SparseVector_31__add__(struct __pyx_obj_4cdec_5_cdec_SparseVector *__pyx_v_x, struct __pyx_obj_4cdec_5_cdec_SparseVector *__pyx_v_y); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_12SparseVector_33__sub__(struct __pyx_obj_4cdec_5_cdec_SparseVector *__pyx_v_x, struct __pyx_obj_4cdec_5_cdec_SparseVector *__pyx_v_y); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_12SparseVector_35__mul__(PyObject *__pyx_v_x, PyObject *__pyx_v_y); /* proto */
 #if PY_MAJOR_VERSION < 3
-static PyObject *__pyx_pf_5_cdec_12SparseVector_37__div__(PyObject *__pyx_v_x, PyObject *__pyx_v_y); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_12SparseVector_37__div__(PyObject *__pyx_v_x, PyObject *__pyx_v_y); /* proto */
 #endif
-static PyObject *__pyx_pf_5_cdec_7_phrase_genexpr(PyObject *__pyx_self); /* proto */
-static PyObject *__pyx_pf_5_cdec__phrase(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_phrase); /* proto */
-static int __pyx_pf_5_cdec_2NT___init__(struct __pyx_obj_5_cdec_NT *__pyx_v_self, PyObject *__pyx_v_cat, unsigned int __pyx_v_ref); /* proto */
-static PyObject *__pyx_pf_5_cdec_2NT_2__str__(struct __pyx_obj_5_cdec_NT *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_2NT_3cat___get__(struct __pyx_obj_5_cdec_NT *__pyx_v_self); /* proto */
-static int __pyx_pf_5_cdec_2NT_3cat_2__set__(struct __pyx_obj_5_cdec_NT *__pyx_v_self, PyObject *__pyx_v_value); /* proto */
-static int __pyx_pf_5_cdec_2NT_3cat_4__del__(struct __pyx_obj_5_cdec_NT *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_2NT_3ref___get__(struct __pyx_obj_5_cdec_NT *__pyx_v_self); /* proto */
-static int __pyx_pf_5_cdec_2NT_3ref_2__set__(struct __pyx_obj_5_cdec_NT *__pyx_v_self, PyObject *__pyx_v_value); /* proto */
-static int __pyx_pf_5_cdec_5NTRef___init__(struct __pyx_obj_5_cdec_NTRef *__pyx_v_self, unsigned int __pyx_v_ref); /* proto */
-static PyObject *__pyx_pf_5_cdec_5NTRef_2__str__(struct __pyx_obj_5_cdec_NTRef *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_5NTRef_3ref___get__(struct __pyx_obj_5_cdec_NTRef *__pyx_v_self); /* proto */
-static int __pyx_pf_5_cdec_5NTRef_3ref_2__set__(struct __pyx_obj_5_cdec_NTRef *__pyx_v_self, PyObject *__pyx_v_value); /* proto */
-static int __pyx_pf_5_cdec_5TRule___init__(struct __pyx_obj_5_cdec_TRule *__pyx_v_self, PyObject *__pyx_v_lhs, PyObject *__pyx_v_f, PyObject *__pyx_v_e, PyObject *__pyx_v_scores, PyObject *__pyx_v_a); /* proto */
-static void __pyx_pf_5_cdec_5TRule_2__dealloc__(CYTHON_UNUSED struct __pyx_obj_5_cdec_TRule *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_5TRule_5arity___get__(struct __pyx_obj_5_cdec_TRule *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_5TRule_1f___get__(struct __pyx_obj_5_cdec_TRule *__pyx_v_self); /* proto */
-static int __pyx_pf_5_cdec_5TRule_1f_2__set__(struct __pyx_obj_5_cdec_TRule *__pyx_v_self, PyObject *__pyx_v_f); /* proto */
-static PyObject *__pyx_pf_5_cdec_5TRule_1e___get__(struct __pyx_obj_5_cdec_TRule *__pyx_v_self); /* proto */
-static int __pyx_pf_5_cdec_5TRule_1e_2__set__(struct __pyx_obj_5_cdec_TRule *__pyx_v_self, PyObject *__pyx_v_e); /* proto */
-static PyObject *__pyx_pf_5_cdec_5TRule_1a___get__(struct __pyx_obj_5_cdec_TRule *__pyx_v_self); /* proto */
-static int __pyx_pf_5_cdec_5TRule_1a_3__set__(struct __pyx_obj_5_cdec_TRule *__pyx_v_self, PyObject *__pyx_v_a); /* proto */
-static PyObject *__pyx_pf_5_cdec_5TRule_6scores___get__(struct __pyx_obj_5_cdec_TRule *__pyx_v_self); /* proto */
-static int __pyx_pf_5_cdec_5TRule_6scores_2__set__(struct __pyx_obj_5_cdec_TRule *__pyx_v_self, PyObject *__pyx_v_scores); /* proto */
-static PyObject *__pyx_pf_5_cdec_5TRule_3lhs___get__(struct __pyx_obj_5_cdec_TRule *__pyx_v_self); /* proto */
-static int __pyx_pf_5_cdec_5TRule_3lhs_2__set__(struct __pyx_obj_5_cdec_TRule *__pyx_v_self, PyObject *__pyx_v_lhs); /* proto */
-static PyObject *__pyx_pf_5_cdec_5TRule_7__str___genexpr(PyObject *__pyx_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_5TRule_4__str__(struct __pyx_obj_5_cdec_TRule *__pyx_v_self); /* proto */
-static int __pyx_pf_5_cdec_5MRule___init__(struct __pyx_obj_5_cdec_MRule *__pyx_v_self, PyObject *__pyx_v_lhs, PyObject *__pyx_v_rhs, PyObject *__pyx_v_scores); /* proto */
-static void __pyx_pf_5_cdec_7Grammar___dealloc__(CYTHON_UNUSED struct __pyx_obj_5_cdec_Grammar *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_7Grammar_2__iter__(struct __pyx_obj_5_cdec_Grammar *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_7Grammar_4name___get__(struct __pyx_obj_5_cdec_Grammar *__pyx_v_self); /* proto */
-static int __pyx_pf_5_cdec_7Grammar_4name_2__set__(struct __pyx_obj_5_cdec_Grammar *__pyx_v_self, PyObject *__pyx_v_name); /* proto */
-static int __pyx_pf_5_cdec_11TextGrammar___init__(struct __pyx_obj_5_cdec_TextGrammar *__pyx_v_self, PyObject *__pyx_v_rules); /* proto */
-static void __pyx_pf_5_cdec_10Hypergraph___dealloc__(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_10Hypergraph_2viterbi(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_10Hypergraph_4viterbi_trees(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_10Hypergraph_6viterbi_features(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_10Hypergraph_8viterbi_forest(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_10Hypergraph_10viterbi_joshua(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_10Hypergraph_12kbest(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self, PyObject *__pyx_v_size); /* proto */
-static PyObject *__pyx_pf_5_cdec_10Hypergraph_15kbest_trees(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self, PyObject *__pyx_v_size); /* proto */
-static PyObject *__pyx_pf_5_cdec_10Hypergraph_18kbest_features(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self, PyObject *__pyx_v_size); /* proto */
-static PyObject *__pyx_pf_5_cdec_10Hypergraph_21sample(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self, unsigned int __pyx_v_n); /* proto */
-static PyObject *__pyx_pf_5_cdec_10Hypergraph_24sample_trees(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self, unsigned int __pyx_v_n); /* proto */
-static PyObject *__pyx_pf_5_cdec_10Hypergraph_27intersect(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self, PyObject *__pyx_v_inp); /* proto */
-static PyObject *__pyx_pf_5_cdec_10Hypergraph_29prune(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self, PyObject *__pyx_v_beam_alpha, PyObject *__pyx_v_density, PyObject *__pyx_v_kwargs); /* proto */
-static PyObject *__pyx_pf_5_cdec_10Hypergraph_31lattice(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_10Hypergraph_33plf(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_10Hypergraph_35reweight(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self, PyObject *__pyx_v_weights); /* proto */
-static PyObject *__pyx_pf_5_cdec_10Hypergraph_5edges___get__(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_10Hypergraph_5nodes___get__(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_10Hypergraph_4goal___get__(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_10Hypergraph_6npaths___get__(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_10Hypergraph_37inside_outside(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self); /* proto */
-static Py_ssize_t __pyx_pf_5_cdec_14HypergraphEdge___len__(struct __pyx_obj_5_cdec_HypergraphEdge *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_14HypergraphEdge_9head_node___get__(struct __pyx_obj_5_cdec_HypergraphEdge *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_14HypergraphEdge_10tail_nodes___get__(struct __pyx_obj_5_cdec_HypergraphEdge *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_14HypergraphEdge_4span___get__(struct __pyx_obj_5_cdec_HypergraphEdge *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_14HypergraphEdge_8src_span___get__(struct __pyx_obj_5_cdec_HypergraphEdge *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_14HypergraphEdge_14feature_values___get__(struct __pyx_obj_5_cdec_HypergraphEdge *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_14HypergraphEdge_4prob___get__(struct __pyx_obj_5_cdec_HypergraphEdge *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_14HypergraphEdge_2__richcmp__(struct __pyx_obj_5_cdec_HypergraphEdge *__pyx_v_x, struct __pyx_obj_5_cdec_HypergraphEdge *__pyx_v_y, int __pyx_v_op); /* proto */
-static PyObject *__pyx_pf_5_cdec_14HypergraphEdge_5trule___get__(struct __pyx_obj_5_cdec_HypergraphEdge *__pyx_v_self); /* proto */
-static int __pyx_pf_5_cdec_14HypergraphEdge_5trule_2__set__(struct __pyx_obj_5_cdec_HypergraphEdge *__pyx_v_self, PyObject *__pyx_v_value); /* proto */
-static int __pyx_pf_5_cdec_14HypergraphEdge_5trule_4__del__(struct __pyx_obj_5_cdec_HypergraphEdge *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_14HypergraphNode_8in_edges___get__(struct __pyx_obj_5_cdec_HypergraphNode *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_14HypergraphNode_9out_edges___get__(struct __pyx_obj_5_cdec_HypergraphNode *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_14HypergraphNode_4span___get__(struct __pyx_obj_5_cdec_HypergraphNode *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_14HypergraphNode_3cat___get__(struct __pyx_obj_5_cdec_HypergraphNode *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_14HypergraphNode___richcmp__(struct __pyx_obj_5_cdec_HypergraphNode *__pyx_v_x, struct __pyx_obj_5_cdec_HypergraphNode *__pyx_v_y, int __pyx_v_op); /* proto */
-static int __pyx_pf_5_cdec_7Lattice___cinit__(struct __pyx_obj_5_cdec_Lattice *__pyx_v_self); /* proto */
-static int __pyx_pf_5_cdec_7Lattice_2__init__(struct __pyx_obj_5_cdec_Lattice *__pyx_v_self, PyObject *__pyx_v_inp); /* proto */
-static void __pyx_pf_5_cdec_7Lattice_4__dealloc__(CYTHON_UNUSED struct __pyx_obj_5_cdec_Lattice *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_7Lattice_6__getitem__(struct __pyx_obj_5_cdec_Lattice *__pyx_v_self, int __pyx_v_index); /* proto */
-static int __pyx_pf_5_cdec_7Lattice_8__setitem__(struct __pyx_obj_5_cdec_Lattice *__pyx_v_self, int __pyx_v_index, PyObject *__pyx_v_arcs); /* proto */
-static Py_ssize_t __pyx_pf_5_cdec_7Lattice_10__len__(struct __pyx_obj_5_cdec_Lattice *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_7Lattice_12__str__(struct __pyx_obj_5_cdec_Lattice *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_7Lattice_14__unicode__(struct __pyx_obj_5_cdec_Lattice *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_7Lattice_16__iter__(struct __pyx_obj_5_cdec_Lattice *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_7Lattice_5todot_lines(PyObject *__pyx_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_7Lattice_19todot(struct __pyx_obj_5_cdec_Lattice *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_7Lattice_21as_hypergraph(struct __pyx_obj_5_cdec_Lattice *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_9Candidate_5words___get__(struct __pyx_obj_5_cdec_Candidate *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_9Candidate_4fmap___get__(struct __pyx_obj_5_cdec_Candidate *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_9Candidate_5score___get__(struct __pyx_obj_5_cdec_Candidate *__pyx_v_self); /* proto */
-static int __pyx_pf_5_cdec_9Candidate_5score_2__set__(struct __pyx_obj_5_cdec_Candidate *__pyx_v_self, PyObject *__pyx_v_value); /* proto */
-static void __pyx_pf_5_cdec_15SufficientStats___dealloc__(CYTHON_UNUSED struct __pyx_obj_5_cdec_SufficientStats *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_15SufficientStats_5score___get__(struct __pyx_obj_5_cdec_SufficientStats *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_15SufficientStats_6detail___get__(struct __pyx_obj_5_cdec_SufficientStats *__pyx_v_self); /* proto */
-static Py_ssize_t __pyx_pf_5_cdec_15SufficientStats_2__len__(struct __pyx_obj_5_cdec_SufficientStats *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_15SufficientStats_4__iter__(struct __pyx_obj_5_cdec_SufficientStats *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_15SufficientStats_7__getitem__(struct __pyx_obj_5_cdec_SufficientStats *__pyx_v_self, int __pyx_v_index); /* proto */
-static PyObject *__pyx_pf_5_cdec_15SufficientStats_9__iadd__(struct __pyx_obj_5_cdec_SufficientStats *__pyx_v_self, struct __pyx_obj_5_cdec_SufficientStats *__pyx_v_other); /* proto */
-static PyObject *__pyx_pf_5_cdec_15SufficientStats_11__add__(PyObject *__pyx_v_x, PyObject *__pyx_v_y); /* proto */
-static int __pyx_pf_5_cdec_12CandidateSet___cinit__(struct __pyx_obj_5_cdec_CandidateSet *__pyx_v_self, struct __pyx_obj_5_cdec_SegmentEvaluator *__pyx_v_evaluator); /* proto */
-static void __pyx_pf_5_cdec_12CandidateSet_2__dealloc__(CYTHON_UNUSED struct __pyx_obj_5_cdec_CandidateSet *__pyx_v_self); /* proto */
-static Py_ssize_t __pyx_pf_5_cdec_12CandidateSet_4__len__(struct __pyx_obj_5_cdec_CandidateSet *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_12CandidateSet_6__getitem__(struct __pyx_obj_5_cdec_CandidateSet *__pyx_v_self, int __pyx_v_k); /* proto */
-static PyObject *__pyx_pf_5_cdec_12CandidateSet_8__iter__(struct __pyx_obj_5_cdec_CandidateSet *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_12CandidateSet_11add_kbest(struct __pyx_obj_5_cdec_CandidateSet *__pyx_v_self, struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_hypergraph, unsigned int __pyx_v_k); /* proto */
-static void __pyx_pf_5_cdec_16SegmentEvaluator___dealloc__(CYTHON_UNUSED struct __pyx_obj_5_cdec_SegmentEvaluator *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_16SegmentEvaluator_2evaluate(struct __pyx_obj_5_cdec_SegmentEvaluator *__pyx_v_self, PyObject *__pyx_v_sentence); /* proto */
-static PyObject *__pyx_pf_5_cdec_16SegmentEvaluator_4candidate_set(struct __pyx_obj_5_cdec_SegmentEvaluator *__pyx_v_self); /* proto */
-static int __pyx_pf_5_cdec_6Scorer___cinit__(struct __pyx_obj_5_cdec_Scorer *__pyx_v_self, PyObject *__pyx_v_name); /* proto */
-static void __pyx_pf_5_cdec_6Scorer_2__dealloc__(CYTHON_UNUSED struct __pyx_obj_5_cdec_Scorer *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_6Scorer_4__call__(struct __pyx_obj_5_cdec_Scorer *__pyx_v_self, PyObject *__pyx_v_refs); /* proto */
-static PyObject *__pyx_pf_5_cdec_6Scorer_6__str__(struct __pyx_obj_5_cdec_Scorer *__pyx_v_self); /* proto */
-static int __pyx_pf_5_cdec_6Metric___cinit__(struct __pyx_obj_5_cdec_Metric *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_6Metric_2__call__(struct __pyx_obj_5_cdec_Metric *__pyx_v_self, PyObject *__pyx_v_refs); /* proto */
-static PyObject *__pyx_pf_5_cdec_6Metric_4score(CYTHON_UNUSED struct __pyx_obj_5_cdec_Metric *__pyx_v_stats); /* proto */
-static PyObject *__pyx_pf_5_cdec_6Metric_6evaluate(CYTHON_UNUSED struct __pyx_obj_5_cdec_Metric *__pyx_v_self, CYTHON_UNUSED PyObject *__pyx_v_hyp, CYTHON_UNUSED PyObject *__pyx_v_refs); /* proto */
-static PyObject *__pyx_pf_5_cdec_2set_silent(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_yn); /* proto */
-static PyObject *__pyx_pf_5_cdec_4_make_config(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_config); /* proto */
-static PyObject *__pyx_pf_5_cdec_7Decoder_8__init___genexpr(PyObject *__pyx_self); /* proto */
-static int __pyx_pf_5_cdec_7Decoder___init__(struct __pyx_obj_5_cdec_Decoder *__pyx_v_self, PyObject *__pyx_v_config_str, PyObject *__pyx_v_config); /* proto */
-static void __pyx_pf_5_cdec_7Decoder_2__dealloc__(CYTHON_UNUSED struct __pyx_obj_5_cdec_Decoder *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_7Decoder_7weights___get__(struct __pyx_obj_5_cdec_Decoder *__pyx_v_self); /* proto */
-static int __pyx_pf_5_cdec_7Decoder_7weights_2__set__(struct __pyx_obj_5_cdec_Decoder *__pyx_v_self, PyObject *__pyx_v_weights); /* proto */
-static PyObject *__pyx_pf_5_cdec_7Decoder_9formalism___get__(struct __pyx_obj_5_cdec_Decoder *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_7Decoder_4read_weights(struct __pyx_obj_5_cdec_Decoder *__pyx_v_self, PyObject *__pyx_v_weights); /* proto */
-static PyObject *__pyx_pf_5_cdec_7Decoder_6translate(struct __pyx_obj_5_cdec_Decoder *__pyx_v_self, PyObject *__pyx_v_sentence, PyObject *__pyx_v_grammar); /* proto */
-static PyObject *__pyx_tp_new_5_cdec_Scorer(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_24___init__(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_5_cdec_NTRef(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_22___iter__(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_5_cdec_Grammar(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_20_lines(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_12_sample_trees(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_13___get__(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_2__phrase(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_5_cdec_CandidateSet(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_14___get__(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_5_cdec_TRule(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_3_genexpr(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_5_cdec_MRule(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_5_cdec_SegmentEvaluator(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_25_genexpr(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_19_todot(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_5_cdec_Candidate(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_6_genexpr(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_5_cdec_NT(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_5_cdec_HypergraphEdge(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_1___iter__(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_16___get__(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_4___get__(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_18___iter__(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_5_cdec_Decoder(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_5_cdec_HypergraphNode(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_5_cdec_SparseVector(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_17___get__(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct____iter__(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_21___iter__(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_5_cdec_DenseVector(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_7___iter__(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_5_cdec_Metric(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_5_cdec_SufficientStats(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_8_kbest(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_10_kbest_features(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_15___get__(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_5___str__(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_9_kbest_trees(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_5_cdec_Hypergraph(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_5_cdec_Lattice(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_11_sample(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_23__make_config(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_5_cdec_TextGrammar(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_pf_4cdec_5_cdec_7_phrase_genexpr(PyObject *__pyx_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec__phrase(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_phrase); /* proto */
+static int __pyx_pf_4cdec_5_cdec_2NT___init__(struct __pyx_obj_4cdec_5_cdec_NT *__pyx_v_self, PyObject *__pyx_v_cat, unsigned int __pyx_v_ref); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_2NT_2__str__(struct __pyx_obj_4cdec_5_cdec_NT *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_2NT_3cat___get__(struct __pyx_obj_4cdec_5_cdec_NT *__pyx_v_self); /* proto */
+static int __pyx_pf_4cdec_5_cdec_2NT_3cat_2__set__(struct __pyx_obj_4cdec_5_cdec_NT *__pyx_v_self, PyObject *__pyx_v_value); /* proto */
+static int __pyx_pf_4cdec_5_cdec_2NT_3cat_4__del__(struct __pyx_obj_4cdec_5_cdec_NT *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_2NT_3ref___get__(struct __pyx_obj_4cdec_5_cdec_NT *__pyx_v_self); /* proto */
+static int __pyx_pf_4cdec_5_cdec_2NT_3ref_2__set__(struct __pyx_obj_4cdec_5_cdec_NT *__pyx_v_self, PyObject *__pyx_v_value); /* proto */
+static int __pyx_pf_4cdec_5_cdec_5NTRef___init__(struct __pyx_obj_4cdec_5_cdec_NTRef *__pyx_v_self, unsigned int __pyx_v_ref); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_5NTRef_2__str__(struct __pyx_obj_4cdec_5_cdec_NTRef *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_5NTRef_3ref___get__(struct __pyx_obj_4cdec_5_cdec_NTRef *__pyx_v_self); /* proto */
+static int __pyx_pf_4cdec_5_cdec_5NTRef_3ref_2__set__(struct __pyx_obj_4cdec_5_cdec_NTRef *__pyx_v_self, PyObject *__pyx_v_value); /* proto */
+static int __pyx_pf_4cdec_5_cdec_5TRule___init__(struct __pyx_obj_4cdec_5_cdec_TRule *__pyx_v_self, PyObject *__pyx_v_lhs, PyObject *__pyx_v_f, PyObject *__pyx_v_e, PyObject *__pyx_v_scores, PyObject *__pyx_v_a); /* proto */
+static void __pyx_pf_4cdec_5_cdec_5TRule_2__dealloc__(CYTHON_UNUSED struct __pyx_obj_4cdec_5_cdec_TRule *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_5TRule_5arity___get__(struct __pyx_obj_4cdec_5_cdec_TRule *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_5TRule_1f___get__(struct __pyx_obj_4cdec_5_cdec_TRule *__pyx_v_self); /* proto */
+static int __pyx_pf_4cdec_5_cdec_5TRule_1f_2__set__(struct __pyx_obj_4cdec_5_cdec_TRule *__pyx_v_self, PyObject *__pyx_v_f); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_5TRule_1e___get__(struct __pyx_obj_4cdec_5_cdec_TRule *__pyx_v_self); /* proto */
+static int __pyx_pf_4cdec_5_cdec_5TRule_1e_2__set__(struct __pyx_obj_4cdec_5_cdec_TRule *__pyx_v_self, PyObject *__pyx_v_e); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_5TRule_1a___get__(struct __pyx_obj_4cdec_5_cdec_TRule *__pyx_v_self); /* proto */
+static int __pyx_pf_4cdec_5_cdec_5TRule_1a_3__set__(struct __pyx_obj_4cdec_5_cdec_TRule *__pyx_v_self, PyObject *__pyx_v_a); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_5TRule_6scores___get__(struct __pyx_obj_4cdec_5_cdec_TRule *__pyx_v_self); /* proto */
+static int __pyx_pf_4cdec_5_cdec_5TRule_6scores_2__set__(struct __pyx_obj_4cdec_5_cdec_TRule *__pyx_v_self, PyObject *__pyx_v_scores); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_5TRule_3lhs___get__(struct __pyx_obj_4cdec_5_cdec_TRule *__pyx_v_self); /* proto */
+static int __pyx_pf_4cdec_5_cdec_5TRule_3lhs_2__set__(struct __pyx_obj_4cdec_5_cdec_TRule *__pyx_v_self, PyObject *__pyx_v_lhs); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_5TRule_7__str___genexpr(PyObject *__pyx_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_5TRule_4__str__(struct __pyx_obj_4cdec_5_cdec_TRule *__pyx_v_self); /* proto */
+static int __pyx_pf_4cdec_5_cdec_5MRule___init__(struct __pyx_obj_4cdec_5_cdec_MRule *__pyx_v_self, PyObject *__pyx_v_lhs, PyObject *__pyx_v_rhs, PyObject *__pyx_v_scores); /* proto */
+static void __pyx_pf_4cdec_5_cdec_7Grammar___dealloc__(CYTHON_UNUSED struct __pyx_obj_4cdec_5_cdec_Grammar *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_7Grammar_2__iter__(struct __pyx_obj_4cdec_5_cdec_Grammar *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_7Grammar_4name___get__(struct __pyx_obj_4cdec_5_cdec_Grammar *__pyx_v_self); /* proto */
+static int __pyx_pf_4cdec_5_cdec_7Grammar_4name_2__set__(struct __pyx_obj_4cdec_5_cdec_Grammar *__pyx_v_self, PyObject *__pyx_v_name); /* proto */
+static int __pyx_pf_4cdec_5_cdec_11TextGrammar___init__(struct __pyx_obj_4cdec_5_cdec_TextGrammar *__pyx_v_self, PyObject *__pyx_v_rules); /* proto */
+static void __pyx_pf_4cdec_5_cdec_10Hypergraph___dealloc__(struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_10Hypergraph_2viterbi(struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_10Hypergraph_4viterbi_trees(struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_10Hypergraph_6viterbi_features(struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_10Hypergraph_8viterbi_forest(struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_10Hypergraph_10viterbi_joshua(struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_10Hypergraph_12kbest(struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_self, PyObject *__pyx_v_size); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_10Hypergraph_15kbest_trees(struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_self, PyObject *__pyx_v_size); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_10Hypergraph_18kbest_features(struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_self, PyObject *__pyx_v_size); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_10Hypergraph_21sample(struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_self, unsigned int __pyx_v_n); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_10Hypergraph_24sample_trees(struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_self, unsigned int __pyx_v_n); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_10Hypergraph_27intersect(struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_self, PyObject *__pyx_v_inp); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_10Hypergraph_29prune(struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_self, PyObject *__pyx_v_beam_alpha, PyObject *__pyx_v_density, PyObject *__pyx_v_kwargs); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_10Hypergraph_31lattice(struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_10Hypergraph_33plf(struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_10Hypergraph_35reweight(struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_self, PyObject *__pyx_v_weights); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_10Hypergraph_5edges___get__(struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_10Hypergraph_5nodes___get__(struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_10Hypergraph_4goal___get__(struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_10Hypergraph_6npaths___get__(struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_10Hypergraph_37inside_outside(struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_self); /* proto */
+static Py_ssize_t __pyx_pf_4cdec_5_cdec_14HypergraphEdge___len__(struct __pyx_obj_4cdec_5_cdec_HypergraphEdge *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_14HypergraphEdge_9head_node___get__(struct __pyx_obj_4cdec_5_cdec_HypergraphEdge *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_14HypergraphEdge_10tail_nodes___get__(struct __pyx_obj_4cdec_5_cdec_HypergraphEdge *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_14HypergraphEdge_4span___get__(struct __pyx_obj_4cdec_5_cdec_HypergraphEdge *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_14HypergraphEdge_8src_span___get__(struct __pyx_obj_4cdec_5_cdec_HypergraphEdge *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_14HypergraphEdge_14feature_values___get__(struct __pyx_obj_4cdec_5_cdec_HypergraphEdge *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_14HypergraphEdge_4prob___get__(struct __pyx_obj_4cdec_5_cdec_HypergraphEdge *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_14HypergraphEdge_2__richcmp__(struct __pyx_obj_4cdec_5_cdec_HypergraphEdge *__pyx_v_x, struct __pyx_obj_4cdec_5_cdec_HypergraphEdge *__pyx_v_y, int __pyx_v_op); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_14HypergraphEdge_5trule___get__(struct __pyx_obj_4cdec_5_cdec_HypergraphEdge *__pyx_v_self); /* proto */
+static int __pyx_pf_4cdec_5_cdec_14HypergraphEdge_5trule_2__set__(struct __pyx_obj_4cdec_5_cdec_HypergraphEdge *__pyx_v_self, PyObject *__pyx_v_value); /* proto */
+static int __pyx_pf_4cdec_5_cdec_14HypergraphEdge_5trule_4__del__(struct __pyx_obj_4cdec_5_cdec_HypergraphEdge *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_14HypergraphNode_8in_edges___get__(struct __pyx_obj_4cdec_5_cdec_HypergraphNode *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_14HypergraphNode_9out_edges___get__(struct __pyx_obj_4cdec_5_cdec_HypergraphNode *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_14HypergraphNode_4span___get__(struct __pyx_obj_4cdec_5_cdec_HypergraphNode *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_14HypergraphNode_3cat___get__(struct __pyx_obj_4cdec_5_cdec_HypergraphNode *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_14HypergraphNode___richcmp__(struct __pyx_obj_4cdec_5_cdec_HypergraphNode *__pyx_v_x, struct __pyx_obj_4cdec_5_cdec_HypergraphNode *__pyx_v_y, int __pyx_v_op); /* proto */
+static int __pyx_pf_4cdec_5_cdec_7Lattice___cinit__(struct __pyx_obj_4cdec_5_cdec_Lattice *__pyx_v_self); /* proto */
+static int __pyx_pf_4cdec_5_cdec_7Lattice_2__init__(struct __pyx_obj_4cdec_5_cdec_Lattice *__pyx_v_self, PyObject *__pyx_v_inp); /* proto */
+static void __pyx_pf_4cdec_5_cdec_7Lattice_4__dealloc__(CYTHON_UNUSED struct __pyx_obj_4cdec_5_cdec_Lattice *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_7Lattice_6__getitem__(struct __pyx_obj_4cdec_5_cdec_Lattice *__pyx_v_self, int __pyx_v_index); /* proto */
+static int __pyx_pf_4cdec_5_cdec_7Lattice_8__setitem__(struct __pyx_obj_4cdec_5_cdec_Lattice *__pyx_v_self, int __pyx_v_index, PyObject *__pyx_v_arcs); /* proto */
+static Py_ssize_t __pyx_pf_4cdec_5_cdec_7Lattice_10__len__(struct __pyx_obj_4cdec_5_cdec_Lattice *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_7Lattice_12__str__(struct __pyx_obj_4cdec_5_cdec_Lattice *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_7Lattice_14__unicode__(struct __pyx_obj_4cdec_5_cdec_Lattice *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_7Lattice_16__iter__(struct __pyx_obj_4cdec_5_cdec_Lattice *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_7Lattice_5todot_lines(PyObject *__pyx_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_7Lattice_19todot(struct __pyx_obj_4cdec_5_cdec_Lattice *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_7Lattice_21as_hypergraph(struct __pyx_obj_4cdec_5_cdec_Lattice *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_9Candidate_5words___get__(struct __pyx_obj_4cdec_5_cdec_Candidate *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_9Candidate_4fmap___get__(struct __pyx_obj_4cdec_5_cdec_Candidate *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_9Candidate_5score___get__(struct __pyx_obj_4cdec_5_cdec_Candidate *__pyx_v_self); /* proto */
+static int __pyx_pf_4cdec_5_cdec_9Candidate_5score_2__set__(struct __pyx_obj_4cdec_5_cdec_Candidate *__pyx_v_self, PyObject *__pyx_v_value); /* proto */
+static void __pyx_pf_4cdec_5_cdec_15SufficientStats___dealloc__(CYTHON_UNUSED struct __pyx_obj_4cdec_5_cdec_SufficientStats *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_15SufficientStats_5score___get__(struct __pyx_obj_4cdec_5_cdec_SufficientStats *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_15SufficientStats_6detail___get__(struct __pyx_obj_4cdec_5_cdec_SufficientStats *__pyx_v_self); /* proto */
+static Py_ssize_t __pyx_pf_4cdec_5_cdec_15SufficientStats_2__len__(struct __pyx_obj_4cdec_5_cdec_SufficientStats *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_15SufficientStats_4__iter__(struct __pyx_obj_4cdec_5_cdec_SufficientStats *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_15SufficientStats_7__getitem__(struct __pyx_obj_4cdec_5_cdec_SufficientStats *__pyx_v_self, int __pyx_v_index); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_15SufficientStats_9__iadd__(struct __pyx_obj_4cdec_5_cdec_SufficientStats *__pyx_v_self, struct __pyx_obj_4cdec_5_cdec_SufficientStats *__pyx_v_other); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_15SufficientStats_11__add__(PyObject *__pyx_v_x, PyObject *__pyx_v_y); /* proto */
+static int __pyx_pf_4cdec_5_cdec_12CandidateSet___cinit__(struct __pyx_obj_4cdec_5_cdec_CandidateSet *__pyx_v_self, struct __pyx_obj_4cdec_5_cdec_SegmentEvaluator *__pyx_v_evaluator); /* proto */
+static void __pyx_pf_4cdec_5_cdec_12CandidateSet_2__dealloc__(CYTHON_UNUSED struct __pyx_obj_4cdec_5_cdec_CandidateSet *__pyx_v_self); /* proto */
+static Py_ssize_t __pyx_pf_4cdec_5_cdec_12CandidateSet_4__len__(struct __pyx_obj_4cdec_5_cdec_CandidateSet *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_12CandidateSet_6__getitem__(struct __pyx_obj_4cdec_5_cdec_CandidateSet *__pyx_v_self, int __pyx_v_k); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_12CandidateSet_8__iter__(struct __pyx_obj_4cdec_5_cdec_CandidateSet *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_12CandidateSet_11add_kbest(struct __pyx_obj_4cdec_5_cdec_CandidateSet *__pyx_v_self, struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_hypergraph, unsigned int __pyx_v_k); /* proto */
+static void __pyx_pf_4cdec_5_cdec_16SegmentEvaluator___dealloc__(CYTHON_UNUSED struct __pyx_obj_4cdec_5_cdec_SegmentEvaluator *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_16SegmentEvaluator_2evaluate(struct __pyx_obj_4cdec_5_cdec_SegmentEvaluator *__pyx_v_self, PyObject *__pyx_v_sentence); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_16SegmentEvaluator_4candidate_set(struct __pyx_obj_4cdec_5_cdec_SegmentEvaluator *__pyx_v_self); /* proto */
+static int __pyx_pf_4cdec_5_cdec_6Scorer___cinit__(struct __pyx_obj_4cdec_5_cdec_Scorer *__pyx_v_self, PyObject *__pyx_v_name); /* proto */
+static void __pyx_pf_4cdec_5_cdec_6Scorer_2__dealloc__(CYTHON_UNUSED struct __pyx_obj_4cdec_5_cdec_Scorer *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_6Scorer_4__call__(struct __pyx_obj_4cdec_5_cdec_Scorer *__pyx_v_self, PyObject *__pyx_v_refs); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_6Scorer_6__str__(struct __pyx_obj_4cdec_5_cdec_Scorer *__pyx_v_self); /* proto */
+static int __pyx_pf_4cdec_5_cdec_6Metric___cinit__(struct __pyx_obj_4cdec_5_cdec_Metric *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_6Metric_2__call__(struct __pyx_obj_4cdec_5_cdec_Metric *__pyx_v_self, PyObject *__pyx_v_refs); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_6Metric_4score(CYTHON_UNUSED struct __pyx_obj_4cdec_5_cdec_Metric *__pyx_v_stats); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_6Metric_6evaluate(CYTHON_UNUSED struct __pyx_obj_4cdec_5_cdec_Metric *__pyx_v_self, CYTHON_UNUSED PyObject *__pyx_v_hyp, CYTHON_UNUSED PyObject *__pyx_v_refs); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_2set_silent(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_yn); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_4_make_config(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_config); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_7Decoder_8__init___genexpr(PyObject *__pyx_self); /* proto */
+static int __pyx_pf_4cdec_5_cdec_7Decoder___init__(struct __pyx_obj_4cdec_5_cdec_Decoder *__pyx_v_self, PyObject *__pyx_v_config_str, PyObject *__pyx_v_config); /* proto */
+static void __pyx_pf_4cdec_5_cdec_7Decoder_2__dealloc__(CYTHON_UNUSED struct __pyx_obj_4cdec_5_cdec_Decoder *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_7Decoder_7weights___get__(struct __pyx_obj_4cdec_5_cdec_Decoder *__pyx_v_self); /* proto */
+static int __pyx_pf_4cdec_5_cdec_7Decoder_7weights_2__set__(struct __pyx_obj_4cdec_5_cdec_Decoder *__pyx_v_self, PyObject *__pyx_v_weights); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_7Decoder_9formalism___get__(struct __pyx_obj_4cdec_5_cdec_Decoder *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_7Decoder_4read_weights(struct __pyx_obj_4cdec_5_cdec_Decoder *__pyx_v_self, PyObject *__pyx_v_weights); /* proto */
+static PyObject *__pyx_pf_4cdec_5_cdec_7Decoder_6translate(struct __pyx_obj_4cdec_5_cdec_Decoder *__pyx_v_self, PyObject *__pyx_v_sentence, PyObject *__pyx_v_grammar); /* proto */
+static PyObject *__pyx_tp_new_4cdec_5_cdec_TRule(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_4cdec_5_cdec_MRule(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_22___iter__(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_4cdec_5_cdec_DenseVector(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_4cdec_5_cdec_SufficientStats(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_21___iter__(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_4cdec_5_cdec_Metric(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_4cdec_5_cdec_Candidate(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_4cdec_5_cdec_SparseVector(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_15___get__(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_4cdec_5_cdec_NT(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_4cdec_5_cdec_Lattice(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_23__make_config(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_4cdec_5_cdec_HypergraphEdge(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_2__phrase(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_13___get__(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_20_lines(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_4cdec_5_cdec_Scorer(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_4cdec_5_cdec_HypergraphNode(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_10_kbest_features(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_4cdec_5_cdec_NTRef(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_4cdec_5_cdec_Grammar(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_4cdec_5_cdec_Hypergraph(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_24___init__(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_4cdec_5_cdec_CandidateSet(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_19_todot(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_5___str__(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_4cdec_5_cdec_SegmentEvaluator(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_16___get__(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_25_genexpr(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_3_genexpr(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_11_sample(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_8_kbest(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_14___get__(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_7___iter__(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_4cdec_5_cdec_TextGrammar(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_4cdec_5_cdec_Decoder(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct____iter__(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_17___get__(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_18___iter__(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_6_genexpr(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_12_sample_trees(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_4___get__(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_1___iter__(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
 static char __pyx_k_1[] = "Cannot convert type %s to str";
 static char __pyx_k_3[] = "cannot take the dot product of %s and SparseVector";
 static char __pyx_k_4[] = "comparison not implemented for SparseVector";
@@ -2212,21 +2212,22 @@ static char __pyx_k_26[] = "digraph lattice {";
   static char __pyx_k_31[] = "\\\"";
   static char __pyx_k_33[] = "%d [shape=doublecircle]";
 static char __pyx_k_34[] = "}";
-static char __pyx_k_37[] = "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi";
+static char __pyx_k_37[] = "/home/mdenkows/cdec/python/cdec/lattice.pxi";
 static char __pyx_k_38[] = "Lattice.todot.<locals>.lines";
-static char __pyx_k_39[] = "\n";
-static char __pyx_k_41[] = "sufficient stats vector index out of range";
-static char __pyx_k_43[] = "candidate set index out of range";
-static char __pyx_k_45[] = "%s %s";
-static char __pyx_k_46[] = "%s = %s";
-static char __pyx_k_47[] = "formalism \"%s\" unknown";
-static char __pyx_k_48[] = "cannot initialize weights with %s";
-static char __pyx_k_49[] = "#";
-static char __pyx_k_52[] = "Cannot translate input type %s";
-static char __pyx_k_53[] = "cdec.sa._sa";
-static char __pyx_k_54[] = "*";
-static char __pyx_k_57[] = "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi";
-static char __pyx_k_65[] = "/Users/vchahun/Sandbox/cdec/python/src/_cdec.pyx";
+static char __pyx_k_39[] = "cdec._cdec";
+static char __pyx_k_40[] = "\n";
+static char __pyx_k_42[] = "sufficient stats vector index out of range";
+static char __pyx_k_44[] = "candidate set index out of range";
+static char __pyx_k_46[] = "%s %s";
+static char __pyx_k_47[] = "%s = %s";
+static char __pyx_k_48[] = "formalism \"%s\" unknown";
+static char __pyx_k_49[] = "cannot initialize weights with %s";
+static char __pyx_k_50[] = "#";
+static char __pyx_k_53[] = "Cannot translate input type %s";
+static char __pyx_k_54[] = "cdec.sa._sa";
+static char __pyx_k_55[] = "*";
+static char __pyx_k_58[] = "/home/mdenkows/cdec/python/cdec/grammar.pxi";
+static char __pyx_k_66[] = "/home/mdenkows/cdec/python/cdec/_cdec.pyx";
 static char __pyx_k__a[] = "a";
 static char __pyx_k__e[] = "e";
 static char __pyx_k__f[] = "f";
@@ -2263,7 +2264,6 @@ static char __pyx_k__self[] = "self";
 static char __pyx_k__send[] = "send";
 static char __pyx_k__span[] = "span";
 static char __pyx_k__utf8[] = "utf8";
-static char __pyx_k___cdec[] = "_cdec";
 static char __pyx_k__close[] = "close";
 static char __pyx_k__delta[] = "delta";
 static char __pyx_k__items[] = "items";
@@ -2352,20 +2352,21 @@ static PyObject *__pyx_kp_s_33;
 static PyObject *__pyx_kp_s_34;
 static PyObject *__pyx_kp_s_37;
 static PyObject *__pyx_n_s_38;
-static PyObject *__pyx_kp_s_39;
+static PyObject *__pyx_n_s_39;
 static PyObject *__pyx_kp_s_4;
-static PyObject *__pyx_kp_s_41;
-static PyObject *__pyx_kp_s_43;
-static PyObject *__pyx_kp_s_45;
+static PyObject *__pyx_kp_s_40;
+static PyObject *__pyx_kp_s_42;
+static PyObject *__pyx_kp_s_44;
 static PyObject *__pyx_kp_s_46;
 static PyObject *__pyx_kp_s_47;
 static PyObject *__pyx_kp_s_48;
 static PyObject *__pyx_kp_s_49;
-static PyObject *__pyx_kp_s_52;
-static PyObject *__pyx_n_s_53;
+static PyObject *__pyx_kp_s_50;
+static PyObject *__pyx_kp_s_53;
 static PyObject *__pyx_n_s_54;
-static PyObject *__pyx_kp_s_57;
-static PyObject *__pyx_kp_s_65;
+static PyObject *__pyx_n_s_55;
+static PyObject *__pyx_kp_s_58;
+static PyObject *__pyx_kp_s_66;
 static PyObject *__pyx_kp_s_7;
 static PyObject *__pyx_kp_s_8;
 static PyObject *__pyx_kp_s_9;
@@ -2397,7 +2398,6 @@ static PyObject *__pyx_n_s____name__;
 static PyObject *__pyx_n_s____pyx_vtable__;
 static PyObject *__pyx_n_s____qualname__;
 static PyObject *__pyx_n_s____test__;
-static PyObject *__pyx_n_s___cdec;
 static PyObject *__pyx_n_s___make_config;
 static PyObject *__pyx_n_s___phrase;
 static PyObject *__pyx_n_s___sa;
@@ -2484,25 +2484,25 @@ static PyObject *__pyx_k_tuple_24;
 static PyObject *__pyx_k_tuple_25;
 static PyObject *__pyx_k_tuple_32;
 static PyObject *__pyx_k_tuple_35;
-static PyObject *__pyx_k_tuple_40;
-static PyObject *__pyx_k_tuple_42;
-static PyObject *__pyx_k_tuple_44;
-static PyObject *__pyx_k_tuple_50;
+static PyObject *__pyx_k_tuple_41;
+static PyObject *__pyx_k_tuple_43;
+static PyObject *__pyx_k_tuple_45;
 static PyObject *__pyx_k_tuple_51;
-static PyObject *__pyx_k_tuple_55;
-static PyObject *__pyx_k_tuple_58;
+static PyObject *__pyx_k_tuple_52;
+static PyObject *__pyx_k_tuple_56;
 static PyObject *__pyx_k_tuple_59;
 static PyObject *__pyx_k_tuple_60;
 static PyObject *__pyx_k_tuple_61;
 static PyObject *__pyx_k_tuple_62;
 static PyObject *__pyx_k_tuple_63;
-static PyObject *__pyx_k_tuple_66;
+static PyObject *__pyx_k_tuple_64;
+static PyObject *__pyx_k_tuple_67;
 static PyObject *__pyx_k_codeobj_36;
-static PyObject *__pyx_k_codeobj_56;
-static PyObject *__pyx_k_codeobj_64;
-static PyObject *__pyx_k_codeobj_67;
+static PyObject *__pyx_k_codeobj_57;
+static PyObject *__pyx_k_codeobj_65;
+static PyObject *__pyx_k_codeobj_68;
 
-/* "_cdec.pyx":6
+/* "cdec/_cdec.pyx":6
  * cimport decoder
  * 
  * cdef bytes as_str(data, char* error_msg='Cannot convert type %s to str'):             # <<<<<<<<<<<<<<
@@ -2510,7 +2510,7 @@ static PyObject *__pyx_k_codeobj_67;
  *     if isinstance(data, unicode):
  */
 
-static PyObject *__pyx_f_5_cdec_as_str(PyObject *__pyx_v_data, struct __pyx_opt_args_5_cdec_as_str *__pyx_optional_args) {
+static PyObject *__pyx_f_4cdec_5_cdec_as_str(PyObject *__pyx_v_data, struct __pyx_opt_args_4cdec_5_cdec_as_str *__pyx_optional_args) {
   char *__pyx_v_error_msg = ((char *)__pyx_k_1);
   PyObject *__pyx_v_ret = 0;
   PyObject *__pyx_r = NULL;
@@ -2530,7 +2530,7 @@ static PyObject *__pyx_f_5_cdec_as_str(PyObject *__pyx_v_data, struct __pyx_opt_
     }
   }
 
-  /* "_cdec.pyx":8
+  /* "cdec/_cdec.pyx":8
  * cdef bytes as_str(data, char* error_msg='Cannot convert type %s to str'):
  *     cdef bytes ret
  *     if isinstance(data, unicode):             # <<<<<<<<<<<<<<
@@ -2541,7 +2541,7 @@ static PyObject *__pyx_f_5_cdec_as_str(PyObject *__pyx_v_data, struct __pyx_opt_
   __pyx_t_2 = (__pyx_t_1 != 0);
   if (__pyx_t_2) {
 
-    /* "_cdec.pyx":9
+    /* "cdec/_cdec.pyx":9
  *     cdef bytes ret
  *     if isinstance(data, unicode):
  *         ret = data.encode('utf8')             # <<<<<<<<<<<<<<
@@ -2559,7 +2559,7 @@ static PyObject *__pyx_f_5_cdec_as_str(PyObject *__pyx_v_data, struct __pyx_opt_
     goto __pyx_L3;
   }
 
-  /* "_cdec.pyx":10
+  /* "cdec/_cdec.pyx":10
  *     if isinstance(data, unicode):
  *         ret = data.encode('utf8')
  *     elif isinstance(data, str):             # <<<<<<<<<<<<<<
@@ -2570,7 +2570,7 @@ static PyObject *__pyx_f_5_cdec_as_str(PyObject *__pyx_v_data, struct __pyx_opt_
   __pyx_t_1 = (__pyx_t_2 != 0);
   if (__pyx_t_1) {
 
-    /* "_cdec.pyx":11
+    /* "cdec/_cdec.pyx":11
  *         ret = data.encode('utf8')
  *     elif isinstance(data, str):
  *         ret = data             # <<<<<<<<<<<<<<
@@ -2584,7 +2584,7 @@ static PyObject *__pyx_f_5_cdec_as_str(PyObject *__pyx_v_data, struct __pyx_opt_
   }
   /*else*/ {
 
-    /* "_cdec.pyx":13
+    /* "cdec/_cdec.pyx":13
  *         ret = data
  *     else:
  *         raise TypeError(error_msg.format(type(data)))             # <<<<<<<<<<<<<<
@@ -2619,7 +2619,7 @@ static PyObject *__pyx_f_5_cdec_as_str(PyObject *__pyx_v_data, struct __pyx_opt_
   }
   __pyx_L3:;
 
-  /* "_cdec.pyx":14
+  /* "cdec/_cdec.pyx":14
  *     else:
  *         raise TypeError(error_msg.format(type(data)))
  *     return ret             # <<<<<<<<<<<<<<
@@ -2637,7 +2637,7 @@ static PyObject *__pyx_f_5_cdec_as_str(PyObject *__pyx_v_data, struct __pyx_opt_
   __Pyx_XDECREF(__pyx_t_3);
   __Pyx_XDECREF(__pyx_t_4);
   __Pyx_XDECREF(__pyx_t_5);
-  __Pyx_AddTraceback("_cdec.as_str", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.as_str", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __pyx_r = 0;
   __pyx_L0:;
   __Pyx_XDECREF(__pyx_v_ret);
@@ -2647,24 +2647,24 @@ static PyObject *__pyx_f_5_cdec_as_str(PyObject *__pyx_v_data, struct __pyx_opt_
 }
 
 /* Python wrapper */
-static int __pyx_pw_5_cdec_11DenseVector_1__init__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static char __pyx_doc_5_cdec_11DenseVector___init__[] = "DenseVector() -> Dense weight/feature vector.";
+static int __pyx_pw_4cdec_5_cdec_11DenseVector_1__init__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static char __pyx_doc_4cdec_5_cdec_11DenseVector___init__[] = "DenseVector() -> Dense weight/feature vector.";
 #if CYTHON_COMPILING_IN_CPYTHON
-struct wrapperbase __pyx_wrapperbase_5_cdec_11DenseVector___init__;
+struct wrapperbase __pyx_wrapperbase_4cdec_5_cdec_11DenseVector___init__;
 #endif
-static int __pyx_pw_5_cdec_11DenseVector_1__init__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static int __pyx_pw_4cdec_5_cdec_11DenseVector_1__init__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   int __pyx_r;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__init__ (wrapper)", 0);
   if (unlikely(PyTuple_GET_SIZE(__pyx_args) > 0)) {
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   if (unlikely(__pyx_kwds) && unlikely(PyDict_Size(__pyx_kwds) > 0) && unlikely(!__Pyx_CheckKeywordStrings(__pyx_kwds, "__init__", 0))) return -1;
-  __pyx_r = __pyx_pf_5_cdec_11DenseVector___init__(((struct __pyx_obj_5_cdec_DenseVector *)__pyx_v_self));
+  __pyx_r = __pyx_pf_4cdec_5_cdec_11DenseVector___init__(((struct __pyx_obj_4cdec_5_cdec_DenseVector *)__pyx_v_self));
   __Pyx_RefNannyFinishContext();
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 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":7
+/* "/home/mdenkows/cdec/python/cdec/vectors.pxi":7
  *     cdef bint owned # if True, do not manage memory
  * 
  *     def __init__(self):             # <<<<<<<<<<<<<<
@@ -2672,7 +2672,7 @@ static int __pyx_pw_5_cdec_11DenseVector_1__init__(PyObject *__pyx_v_self, PyObj
  *         self.vector = new vector[weight_t]()
  */
 
-static int __pyx_pf_5_cdec_11DenseVector___init__(struct __pyx_obj_5_cdec_DenseVector *__pyx_v_self) {
+static int __pyx_pf_4cdec_5_cdec_11DenseVector___init__(struct __pyx_obj_4cdec_5_cdec_DenseVector *__pyx_v_self) {
   int __pyx_r;
   __Pyx_RefNannyDeclarations
   std::vector<weight_t> *__pyx_t_1;
@@ -2681,7 +2681,7 @@ static int __pyx_pf_5_cdec_11DenseVector___init__(struct __pyx_obj_5_cdec_DenseV
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__init__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":9
+  /* "/home/mdenkows/cdec/python/cdec/vectors.pxi":9
  *     def __init__(self):
  *         """DenseVector() -> Dense weight/feature vector."""
  *         self.vector = new vector[weight_t]()             # <<<<<<<<<<<<<<
@@ -2696,7 +2696,7 @@ static int __pyx_pf_5_cdec_11DenseVector___init__(struct __pyx_obj_5_cdec_DenseV
   }
   __pyx_v_self->vector = __pyx_t_1;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":10
+  /* "/home/mdenkows/cdec/python/cdec/vectors.pxi":10
  *         """DenseVector() -> Dense weight/feature vector."""
  *         self.vector = new vector[weight_t]()
  *         self.owned = False             # <<<<<<<<<<<<<<
@@ -2708,7 +2708,7 @@ static int __pyx_pf_5_cdec_11DenseVector___init__(struct __pyx_obj_5_cdec_DenseV
   __pyx_r = 0;
   goto __pyx_L0;
   __pyx_L1_error:;
-  __Pyx_AddTraceback("_cdec.DenseVector.__init__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.DenseVector.__init__", __pyx_clineno, __pyx_lineno, __pyx_filename);
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   __pyx_L0:;
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@@ -2716,15 +2716,15 @@ static int __pyx_pf_5_cdec_11DenseVector___init__(struct __pyx_obj_5_cdec_DenseV
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 /* Python wrapper */
-static void __pyx_pw_5_cdec_11DenseVector_3__dealloc__(PyObject *__pyx_v_self); /*proto*/
-static void __pyx_pw_5_cdec_11DenseVector_3__dealloc__(PyObject *__pyx_v_self) {
+static void __pyx_pw_4cdec_5_cdec_11DenseVector_3__dealloc__(PyObject *__pyx_v_self); /*proto*/
+static void __pyx_pw_4cdec_5_cdec_11DenseVector_3__dealloc__(PyObject *__pyx_v_self) {
   __Pyx_RefNannyDeclarations
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-  __pyx_pf_5_cdec_11DenseVector_2__dealloc__(((struct __pyx_obj_5_cdec_DenseVector *)__pyx_v_self));
+  __pyx_pf_4cdec_5_cdec_11DenseVector_2__dealloc__(((struct __pyx_obj_4cdec_5_cdec_DenseVector *)__pyx_v_self));
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 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":12
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  * 
  *     def __dealloc__(self):             # <<<<<<<<<<<<<<
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-static void __pyx_pf_5_cdec_11DenseVector_2__dealloc__(struct __pyx_obj_5_cdec_DenseVector *__pyx_v_self) {
+static void __pyx_pf_4cdec_5_cdec_11DenseVector_2__dealloc__(struct __pyx_obj_4cdec_5_cdec_DenseVector *__pyx_v_self) {
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":13
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":14
+    /* "/home/mdenkows/cdec/python/cdec/vectors.pxi":14
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-static Py_ssize_t __pyx_pw_5_cdec_11DenseVector_5__len__(PyObject *__pyx_v_self) {
+static Py_ssize_t __pyx_pw_4cdec_5_cdec_11DenseVector_5__len__(PyObject *__pyx_v_self); /*proto*/
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+  __pyx_r = __pyx_pf_4cdec_5_cdec_11DenseVector_4__len__(((struct __pyx_obj_4cdec_5_cdec_DenseVector *)__pyx_v_self));
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-static Py_ssize_t __pyx_pf_5_cdec_11DenseVector_4__len__(struct __pyx_obj_5_cdec_DenseVector *__pyx_v_self) {
+static Py_ssize_t __pyx_pf_4cdec_5_cdec_11DenseVector_4__len__(struct __pyx_obj_4cdec_5_cdec_DenseVector *__pyx_v_self) {
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-static PyObject *__pyx_pw_5_cdec_11DenseVector_7__getitem__(PyObject *__pyx_v_self, PyObject *__pyx_arg_fname) {
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+static PyObject *__pyx_pw_4cdec_5_cdec_11DenseVector_7__getitem__(PyObject *__pyx_v_self, PyObject *__pyx_arg_fname) {
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":21
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":22
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":23
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":27
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":29
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":30
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 /* Python wrapper */
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":34
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":35
+    /* "/home/mdenkows/cdec/python/cdec/vectors.pxi":35
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 /* Python wrapper */
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-static PyObject *__pyx_pw_5_cdec_11DenseVector_14dot(PyObject *__pyx_v_self, PyObject *__pyx_v_other) {
+static PyObject *__pyx_pw_4cdec_5_cdec_11DenseVector_14dot(PyObject *__pyx_v_self, PyObject *__pyx_v_other); /*proto*/
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-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":37
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":39
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-  __Pyx_AddTraceback("_cdec.DenseVector.dot", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.DenseVector.dot", __pyx_clineno, __pyx_lineno, __pyx_filename);
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 /* Python wrapper */
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-static PyObject *__pyx_pw_5_cdec_11DenseVector_16tosparse(PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *unused) {
+static PyObject *__pyx_pw_4cdec_5_cdec_11DenseVector_16tosparse(PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *unused); /*proto*/
+static char __pyx_doc_4cdec_5_cdec_11DenseVector_15tosparse[] = "vector.tosparse() -> Equivalent SparseVector.";
+static PyObject *__pyx_pw_4cdec_5_cdec_11DenseVector_16tosparse(PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *unused) {
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-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":41
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-static PyObject *__pyx_pf_5_cdec_11DenseVector_15tosparse(struct __pyx_obj_5_cdec_DenseVector *__pyx_v_self) {
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+static PyObject *__pyx_pf_4cdec_5_cdec_11DenseVector_15tosparse(struct __pyx_obj_4cdec_5_cdec_DenseVector *__pyx_v_self) {
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":43
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-  __pyx_v_sparse = ((struct __pyx_obj_5_cdec_SparseVector *)__pyx_t_1);
+  if (!(likely(__Pyx_TypeTest(__pyx_t_1, __pyx_ptype_4cdec_5_cdec_SparseVector)))) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 43; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_v_sparse = ((struct __pyx_obj_4cdec_5_cdec_SparseVector *)__pyx_t_1);
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":44
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":45
+  /* "/home/mdenkows/cdec/python/cdec/vectors.pxi":45
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":46
+  /* "/home/mdenkows/cdec/python/cdec/vectors.pxi":46
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-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":51
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-static int __pyx_pf_5_cdec_12SparseVector___init__(struct __pyx_obj_5_cdec_SparseVector *__pyx_v_self) {
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":53
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 /* Python wrapper */
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-static void __pyx_pw_5_cdec_12SparseVector_3__dealloc__(PyObject *__pyx_v_self) {
+static void __pyx_pw_4cdec_5_cdec_12SparseVector_3__dealloc__(PyObject *__pyx_v_self); /*proto*/
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-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":55
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-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":58
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-static PyObject *__pyx_pf_5_cdec_12SparseVector_4copy(struct __pyx_obj_5_cdec_SparseVector *__pyx_v_self) {
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+static PyObject *__pyx_pf_4cdec_5_cdec_12SparseVector_6__getitem__(struct __pyx_obj_4cdec_5_cdec_SparseVector *__pyx_v_self, char *__pyx_v_fname) {
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":63
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":64
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-static int __pyx_pw_5_cdec_12SparseVector_9__setitem__(PyObject *__pyx_v_self, PyObject *__pyx_arg_fname, PyObject *__pyx_arg_value) {
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":68
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":69
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":70
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-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":72
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-static PyObject *__pyx_gb_5_cdec_12SparseVector_12generator1(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
+static PyObject *__pyx_gb_4cdec_5_cdec_12SparseVector_12generator1(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
 {
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+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_1___iter__ *__pyx_cur_scope = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_1___iter__ *)__pyx_generator->closure);
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":73
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":75
+  /* "/home/mdenkows/cdec/python/cdec/vectors.pxi":75
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":76
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-      /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":77
+      /* "/home/mdenkows/cdec/python/cdec/vectors.pxi":77
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-      /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":78
+      /* "/home/mdenkows/cdec/python/cdec/vectors.pxi":78
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":80
+  /* "/home/mdenkows/cdec/python/cdec/vectors.pxi":80
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-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":82
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-  __pyx_t_1 = __Pyx_TypeCheck(__pyx_v_other, ((PyObject*)__pyx_ptype_5_cdec_DenseVector)); 
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":85
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-    __pyx_t_3 = PyFloat_FromDouble(__pyx_v_self->vector->dot((((struct __pyx_obj_5_cdec_DenseVector *)__pyx_v_other)->vector[0]))); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 85; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyFloat_FromDouble(__pyx_v_self->vector->dot((((struct __pyx_obj_4cdec_5_cdec_DenseVector *)__pyx_v_other)->vector[0]))); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 85; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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@@ -3969,18 +3969,18 @@ static PyObject *__pyx_pf_5_cdec_12SparseVector_13dot(struct __pyx_obj_5_cdec_Sp
     goto __pyx_L3;
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":86
+  /* "/home/mdenkows/cdec/python/cdec/vectors.pxi":86
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  */
-  __pyx_t_2 = __Pyx_TypeCheck(__pyx_v_other, ((PyObject*)__pyx_ptype_5_cdec_SparseVector)); 
+  __pyx_t_2 = __Pyx_TypeCheck(__pyx_v_other, ((PyObject*)__pyx_ptype_4cdec_5_cdec_SparseVector)); 
   __pyx_t_1 = (__pyx_t_2 != 0);
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":87
+    /* "/home/mdenkows/cdec/python/cdec/vectors.pxi":87
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  */
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+    __pyx_t_3 = PyFloat_FromDouble(__pyx_v_self->vector->dot((((struct __pyx_obj_4cdec_5_cdec_SparseVector *)__pyx_v_other)->vector[0]))); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 87; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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@@ -3997,7 +3997,7 @@ static PyObject *__pyx_pf_5_cdec_12SparseVector_13dot(struct __pyx_obj_5_cdec_Sp
   }
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":88
+  /* "/home/mdenkows/cdec/python/cdec/vectors.pxi":88
  *         elif isinstance(other, SparseVector):
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  *         raise TypeError('cannot take the dot product of %s and SparseVector' % type(other))             # <<<<<<<<<<<<<<
@@ -4023,7 +4023,7 @@ static PyObject *__pyx_pf_5_cdec_12SparseVector_13dot(struct __pyx_obj_5_cdec_Sp
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   __Pyx_XDECREF(__pyx_t_4);
-  __Pyx_AddTraceback("_cdec.SparseVector.dot", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.SparseVector.dot", __pyx_clineno, __pyx_lineno, __pyx_filename);
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   __pyx_L0:;
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@@ -4032,17 +4032,17 @@ static PyObject *__pyx_pf_5_cdec_12SparseVector_13dot(struct __pyx_obj_5_cdec_Sp
 }
 
 /* Python wrapper */
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-static PyObject *__pyx_pw_5_cdec_12SparseVector_16__richcmp__(PyObject *__pyx_v_x, PyObject *__pyx_v_y, int __pyx_v_op) {
+static PyObject *__pyx_pw_4cdec_5_cdec_12SparseVector_16__richcmp__(PyObject *__pyx_v_x, PyObject *__pyx_v_y, int __pyx_v_op); /*proto*/
+static PyObject *__pyx_pw_4cdec_5_cdec_12SparseVector_16__richcmp__(PyObject *__pyx_v_x, PyObject *__pyx_v_y, int __pyx_v_op) {
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+  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_x), __pyx_ptype_4cdec_5_cdec_SparseVector, 1, "x", 0))) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 90; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_y), __pyx_ptype_4cdec_5_cdec_SparseVector, 1, "y", 0))) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 90; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_r = __pyx_pf_4cdec_5_cdec_12SparseVector_15__richcmp__(((struct __pyx_obj_4cdec_5_cdec_SparseVector *)__pyx_v_x), ((struct __pyx_obj_4cdec_5_cdec_SparseVector *)__pyx_v_y), ((int)__pyx_v_op));
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   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":90
+/* "/home/mdenkows/cdec/python/cdec/vectors.pxi":90
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-static PyObject *__pyx_pf_5_cdec_12SparseVector_15__richcmp__(struct __pyx_obj_5_cdec_SparseVector *__pyx_v_x, struct __pyx_obj_5_cdec_SparseVector *__pyx_v_y, int __pyx_v_op) {
+static PyObject *__pyx_pf_4cdec_5_cdec_12SparseVector_15__richcmp__(struct __pyx_obj_4cdec_5_cdec_SparseVector *__pyx_v_x, struct __pyx_obj_4cdec_5_cdec_SparseVector *__pyx_v_y, int __pyx_v_op) {
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@@ -4069,7 +4069,7 @@ static PyObject *__pyx_pf_5_cdec_12SparseVector_15__richcmp__(struct __pyx_obj_5
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":93
+  /* "/home/mdenkows/cdec/python/cdec/vectors.pxi":93
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  *         elif op == 3: # !=             # <<<<<<<<<<<<<<
@@ -4078,7 +4078,7 @@ static PyObject *__pyx_pf_5_cdec_12SparseVector_15__richcmp__(struct __pyx_obj_5
  */
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":91
+    /* "/home/mdenkows/cdec/python/cdec/vectors.pxi":91
  * 
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@@ -4087,7 +4087,7 @@ static PyObject *__pyx_pf_5_cdec_12SparseVector_15__richcmp__(struct __pyx_obj_5
  */
     case 2:
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":92
+    /* "/home/mdenkows/cdec/python/cdec/vectors.pxi":92
  *     def __richcmp__(SparseVector x, SparseVector y, int op):
  *         if op == 2: # ==
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@@ -4102,7 +4102,7 @@ static PyObject *__pyx_pf_5_cdec_12SparseVector_15__richcmp__(struct __pyx_obj_5
     goto __pyx_L0;
     break;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":93
+    /* "/home/mdenkows/cdec/python/cdec/vectors.pxi":93
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  *         elif op == 3: # !=             # <<<<<<<<<<<<<<
@@ -4111,7 +4111,7 @@ static PyObject *__pyx_pf_5_cdec_12SparseVector_15__richcmp__(struct __pyx_obj_5
  */
     case 3:
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":94
+    /* "/home/mdenkows/cdec/python/cdec/vectors.pxi":94
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  *         elif op == 3: # !=
  *             return not (x == y)             # <<<<<<<<<<<<<<
@@ -4130,7 +4130,7 @@ static PyObject *__pyx_pf_5_cdec_12SparseVector_15__richcmp__(struct __pyx_obj_5
     break;
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":95
+  /* "/home/mdenkows/cdec/python/cdec/vectors.pxi":95
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  *             return not (x == y)
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@@ -4147,7 +4147,7 @@ static PyObject *__pyx_pf_5_cdec_12SparseVector_15__richcmp__(struct __pyx_obj_5
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-  __Pyx_AddTraceback("_cdec.SparseVector.__richcmp__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.SparseVector.__richcmp__", __pyx_clineno, __pyx_lineno, __pyx_filename);
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@@ -4156,17 +4156,17 @@ static PyObject *__pyx_pf_5_cdec_12SparseVector_15__richcmp__(struct __pyx_obj_5
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-static Py_ssize_t __pyx_pw_5_cdec_12SparseVector_18__len__(PyObject *__pyx_v_self) {
+static Py_ssize_t __pyx_pw_4cdec_5_cdec_12SparseVector_18__len__(PyObject *__pyx_v_self); /*proto*/
+static Py_ssize_t __pyx_pw_4cdec_5_cdec_12SparseVector_18__len__(PyObject *__pyx_v_self) {
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-  __pyx_r = __pyx_pf_5_cdec_12SparseVector_17__len__(((struct __pyx_obj_5_cdec_SparseVector *)__pyx_v_self));
+  __pyx_r = __pyx_pf_4cdec_5_cdec_12SparseVector_17__len__(((struct __pyx_obj_4cdec_5_cdec_SparseVector *)__pyx_v_self));
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-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":97
+/* "/home/mdenkows/cdec/python/cdec/vectors.pxi":97
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  * 
  */
 
-static Py_ssize_t __pyx_pf_5_cdec_12SparseVector_17__len__(struct __pyx_obj_5_cdec_SparseVector *__pyx_v_self) {
+static Py_ssize_t __pyx_pf_4cdec_5_cdec_12SparseVector_17__len__(struct __pyx_obj_4cdec_5_cdec_SparseVector *__pyx_v_self) {
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":98
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 /* Python wrapper */
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-static int __pyx_pw_5_cdec_12SparseVector_20__contains__(PyObject *__pyx_v_self, PyObject *__pyx_arg_fname) {
+static int __pyx_pw_4cdec_5_cdec_12SparseVector_20__contains__(PyObject *__pyx_v_self, PyObject *__pyx_arg_fname); /*proto*/
+static int __pyx_pw_4cdec_5_cdec_12SparseVector_20__contains__(PyObject *__pyx_v_self, PyObject *__pyx_arg_fname) {
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   int __pyx_lineno = 0;
   const char *__pyx_filename = NULL;
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   __pyx_L3_error:;
-  __Pyx_AddTraceback("_cdec.SparseVector.__contains__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.SparseVector.__contains__", __pyx_clineno, __pyx_lineno, __pyx_filename);
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+  __pyx_r = __pyx_pf_4cdec_5_cdec_12SparseVector_19__contains__(((struct __pyx_obj_4cdec_5_cdec_SparseVector *)__pyx_v_self), ((char *)__pyx_v_fname));
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-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":100
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+static int __pyx_pf_4cdec_5_cdec_12SparseVector_19__contains__(struct __pyx_obj_4cdec_5_cdec_SparseVector *__pyx_v_self, char *__pyx_v_fname) {
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":101
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-static PyObject *__pyx_pw_5_cdec_12SparseVector_22__neg__(PyObject *__pyx_v_self) {
+static PyObject *__pyx_pw_4cdec_5_cdec_12SparseVector_22__neg__(PyObject *__pyx_v_self); /*proto*/
+static PyObject *__pyx_pw_4cdec_5_cdec_12SparseVector_22__neg__(PyObject *__pyx_v_self) {
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-  __pyx_r = __pyx_pf_5_cdec_12SparseVector_21__neg__(((struct __pyx_obj_5_cdec_SparseVector *)__pyx_v_self));
+  __pyx_r = __pyx_pf_4cdec_5_cdec_12SparseVector_21__neg__(((struct __pyx_obj_4cdec_5_cdec_SparseVector *)__pyx_v_self));
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-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":103
+/* "/home/mdenkows/cdec/python/cdec/vectors.pxi":103
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-static PyObject *__pyx_pf_5_cdec_12SparseVector_21__neg__(struct __pyx_obj_5_cdec_SparseVector *__pyx_v_self) {
-  struct __pyx_obj_5_cdec_SparseVector *__pyx_v_result = 0;
+static PyObject *__pyx_pf_4cdec_5_cdec_12SparseVector_21__neg__(struct __pyx_obj_4cdec_5_cdec_SparseVector *__pyx_v_self) {
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":104
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-  __pyx_v_result = ((struct __pyx_obj_5_cdec_SparseVector *)__pyx_t_1);
+  if (!(likely(__Pyx_TypeTest(__pyx_t_1, __pyx_ptype_4cdec_5_cdec_SparseVector)))) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 104; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_v_result = ((struct __pyx_obj_4cdec_5_cdec_SparseVector *)__pyx_t_1);
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":105
+  /* "/home/mdenkows/cdec/python/cdec/vectors.pxi":105
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":106
+  /* "/home/mdenkows/cdec/python/cdec/vectors.pxi":106
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@@ -4308,7 +4308,7 @@ static PyObject *__pyx_pf_5_cdec_12SparseVector_21__neg__(struct __pyx_obj_5_cde
  */
   (__pyx_v_result->vector[0]) *= -1.0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":107
+  /* "/home/mdenkows/cdec/python/cdec/vectors.pxi":107
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@@ -4324,7 +4324,7 @@ static PyObject *__pyx_pf_5_cdec_12SparseVector_21__neg__(struct __pyx_obj_5_cde
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   __Pyx_XDECREF(__pyx_t_1);
-  __Pyx_AddTraceback("_cdec.SparseVector.__neg__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.SparseVector.__neg__", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __pyx_r = NULL;
   __pyx_L0:;
   __Pyx_XDECREF((PyObject *)__pyx_v_result);
@@ -4334,16 +4334,16 @@ static PyObject *__pyx_pf_5_cdec_12SparseVector_21__neg__(struct __pyx_obj_5_cde
 }
 
 /* Python wrapper */
-static PyObject *__pyx_pw_5_cdec_12SparseVector_24__iadd__(PyObject *__pyx_v_self, PyObject *__pyx_v_other); /*proto*/
-static PyObject *__pyx_pw_5_cdec_12SparseVector_24__iadd__(PyObject *__pyx_v_self, PyObject *__pyx_v_other) {
+static PyObject *__pyx_pw_4cdec_5_cdec_12SparseVector_24__iadd__(PyObject *__pyx_v_self, PyObject *__pyx_v_other); /*proto*/
+static PyObject *__pyx_pw_4cdec_5_cdec_12SparseVector_24__iadd__(PyObject *__pyx_v_self, PyObject *__pyx_v_other) {
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-  __pyx_r = __pyx_pf_5_cdec_12SparseVector_23__iadd__(((struct __pyx_obj_5_cdec_SparseVector *)__pyx_v_self), ((struct __pyx_obj_5_cdec_SparseVector *)__pyx_v_other));
+  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_other), __pyx_ptype_4cdec_5_cdec_SparseVector, 1, "other", 0))) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 109; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_r = __pyx_pf_4cdec_5_cdec_12SparseVector_23__iadd__(((struct __pyx_obj_4cdec_5_cdec_SparseVector *)__pyx_v_self), ((struct __pyx_obj_4cdec_5_cdec_SparseVector *)__pyx_v_other));
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@@ -4352,7 +4352,7 @@ static PyObject *__pyx_pw_5_cdec_12SparseVector_24__iadd__(PyObject *__pyx_v_sel
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":109
+/* "/home/mdenkows/cdec/python/cdec/vectors.pxi":109
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@@ -4360,12 +4360,12 @@ static PyObject *__pyx_pw_5_cdec_12SparseVector_24__iadd__(PyObject *__pyx_v_sel
  *         return self
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-static PyObject *__pyx_pf_5_cdec_12SparseVector_23__iadd__(struct __pyx_obj_5_cdec_SparseVector *__pyx_v_self, struct __pyx_obj_5_cdec_SparseVector *__pyx_v_other) {
+static PyObject *__pyx_pf_4cdec_5_cdec_12SparseVector_23__iadd__(struct __pyx_obj_4cdec_5_cdec_SparseVector *__pyx_v_self, struct __pyx_obj_4cdec_5_cdec_SparseVector *__pyx_v_other) {
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":110
+  /* "/home/mdenkows/cdec/python/cdec/vectors.pxi":110
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  *     def __iadd__(SparseVector self, SparseVector other):
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  */
   (__pyx_v_self->vector[0]) += (__pyx_v_other->vector[0]);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":111
+  /* "/home/mdenkows/cdec/python/cdec/vectors.pxi":111
  *     def __iadd__(SparseVector self, SparseVector other):
  *         self.vector[0] += other.vector[0]
  *         return self             # <<<<<<<<<<<<<<
@@ -4394,16 +4394,16 @@ static PyObject *__pyx_pf_5_cdec_12SparseVector_23__iadd__(struct __pyx_obj_5_cd
 }
 
 /* Python wrapper */
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-static PyObject *__pyx_pw_5_cdec_12SparseVector_26__isub__(PyObject *__pyx_v_self, PyObject *__pyx_v_other) {
+static PyObject *__pyx_pw_4cdec_5_cdec_12SparseVector_26__isub__(PyObject *__pyx_v_self, PyObject *__pyx_v_other); /*proto*/
+static PyObject *__pyx_pw_4cdec_5_cdec_12SparseVector_26__isub__(PyObject *__pyx_v_self, PyObject *__pyx_v_other) {
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   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__isub__ (wrapper)", 0);
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-  __pyx_r = __pyx_pf_5_cdec_12SparseVector_25__isub__(((struct __pyx_obj_5_cdec_SparseVector *)__pyx_v_self), ((struct __pyx_obj_5_cdec_SparseVector *)__pyx_v_other));
+  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_other), __pyx_ptype_4cdec_5_cdec_SparseVector, 1, "other", 0))) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 113; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_r = __pyx_pf_4cdec_5_cdec_12SparseVector_25__isub__(((struct __pyx_obj_4cdec_5_cdec_SparseVector *)__pyx_v_self), ((struct __pyx_obj_4cdec_5_cdec_SparseVector *)__pyx_v_other));
   goto __pyx_L0;
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   __pyx_r = NULL;
@@ -4412,7 +4412,7 @@ static PyObject *__pyx_pw_5_cdec_12SparseVector_26__isub__(PyObject *__pyx_v_sel
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":113
+/* "/home/mdenkows/cdec/python/cdec/vectors.pxi":113
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  * 
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-static PyObject *__pyx_pf_5_cdec_12SparseVector_25__isub__(struct __pyx_obj_5_cdec_SparseVector *__pyx_v_self, struct __pyx_obj_5_cdec_SparseVector *__pyx_v_other) {
+static PyObject *__pyx_pf_4cdec_5_cdec_12SparseVector_25__isub__(struct __pyx_obj_4cdec_5_cdec_SparseVector *__pyx_v_self, struct __pyx_obj_4cdec_5_cdec_SparseVector *__pyx_v_other) {
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   __Pyx_RefNannySetupContext("__isub__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":114
+  /* "/home/mdenkows/cdec/python/cdec/vectors.pxi":114
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  *     def __isub__(SparseVector self, SparseVector other):
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  */
   (__pyx_v_self->vector[0]) -= (__pyx_v_other->vector[0]);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":115
+  /* "/home/mdenkows/cdec/python/cdec/vectors.pxi":115
  *     def __isub__(SparseVector self, SparseVector other):
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@@ -4454,8 +4454,8 @@ static PyObject *__pyx_pf_5_cdec_12SparseVector_25__isub__(struct __pyx_obj_5_cd
 }
 
 /* Python wrapper */
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-static PyObject *__pyx_pw_5_cdec_12SparseVector_28__imul__(PyObject *__pyx_v_self, PyObject *__pyx_arg_scalar) {
+static PyObject *__pyx_pw_4cdec_5_cdec_12SparseVector_28__imul__(PyObject *__pyx_v_self, PyObject *__pyx_arg_scalar); /*proto*/
+static PyObject *__pyx_pw_4cdec_5_cdec_12SparseVector_28__imul__(PyObject *__pyx_v_self, PyObject *__pyx_arg_scalar) {
   float __pyx_v_scalar;
   int __pyx_lineno = 0;
   const char *__pyx_filename = NULL;
@@ -4468,16 +4468,16 @@ static PyObject *__pyx_pw_5_cdec_12SparseVector_28__imul__(PyObject *__pyx_v_sel
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L3_error:;
-  __Pyx_AddTraceback("_cdec.SparseVector.__imul__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.SparseVector.__imul__", __pyx_clineno, __pyx_lineno, __pyx_filename);
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+  __pyx_r = __pyx_pf_4cdec_5_cdec_12SparseVector_27__imul__(((struct __pyx_obj_4cdec_5_cdec_SparseVector *)__pyx_v_self), ((float)__pyx_v_scalar));
   __Pyx_RefNannyFinishContext();
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 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":117
+/* "/home/mdenkows/cdec/python/cdec/vectors.pxi":117
  *         return self
  * 
  *     def __imul__(SparseVector self, float scalar):             # <<<<<<<<<<<<<<
@@ -4485,12 +4485,12 @@ static PyObject *__pyx_pw_5_cdec_12SparseVector_28__imul__(PyObject *__pyx_v_sel
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-static PyObject *__pyx_pf_5_cdec_12SparseVector_27__imul__(struct __pyx_obj_5_cdec_SparseVector *__pyx_v_self, float __pyx_v_scalar) {
+static PyObject *__pyx_pf_4cdec_5_cdec_12SparseVector_27__imul__(struct __pyx_obj_4cdec_5_cdec_SparseVector *__pyx_v_self, float __pyx_v_scalar) {
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   __Pyx_RefNannySetupContext("__imul__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":118
+  /* "/home/mdenkows/cdec/python/cdec/vectors.pxi":118
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  *     def __imul__(SparseVector self, float scalar):
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@@ -4499,7 +4499,7 @@ static PyObject *__pyx_pf_5_cdec_12SparseVector_27__imul__(struct __pyx_obj_5_cd
  */
   (__pyx_v_self->vector[0]) *= __pyx_v_scalar;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":119
+  /* "/home/mdenkows/cdec/python/cdec/vectors.pxi":119
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@@ -4520,8 +4520,8 @@ static PyObject *__pyx_pf_5_cdec_12SparseVector_27__imul__(struct __pyx_obj_5_cd
 
 /* Python wrapper */
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-static PyObject *__pyx_pw_5_cdec_12SparseVector_30__idiv__(PyObject *__pyx_v_self, PyObject *__pyx_arg_scalar) {
+static PyObject *__pyx_pw_4cdec_5_cdec_12SparseVector_30__idiv__(PyObject *__pyx_v_self, PyObject *__pyx_arg_scalar); /*proto*/
+static PyObject *__pyx_pw_4cdec_5_cdec_12SparseVector_30__idiv__(PyObject *__pyx_v_self, PyObject *__pyx_arg_scalar) {
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@@ -4534,17 +4534,17 @@ static PyObject *__pyx_pw_5_cdec_12SparseVector_30__idiv__(PyObject *__pyx_v_sel
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   __pyx_L3_error:;
-  __Pyx_AddTraceback("_cdec.SparseVector.__idiv__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.SparseVector.__idiv__", __pyx_clineno, __pyx_lineno, __pyx_filename);
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   return NULL;
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+  __pyx_r = __pyx_pf_4cdec_5_cdec_12SparseVector_29__idiv__(((struct __pyx_obj_4cdec_5_cdec_SparseVector *)__pyx_v_self), ((float)__pyx_v_scalar));
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-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":121
+/* "/home/mdenkows/cdec/python/cdec/vectors.pxi":121
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 #if PY_MAJOR_VERSION < 3
-static PyObject *__pyx_pf_5_cdec_12SparseVector_29__idiv__(struct __pyx_obj_5_cdec_SparseVector *__pyx_v_self, float __pyx_v_scalar) {
+static PyObject *__pyx_pf_4cdec_5_cdec_12SparseVector_29__idiv__(struct __pyx_obj_4cdec_5_cdec_SparseVector *__pyx_v_self, float __pyx_v_scalar) {
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":122
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  *     def __idiv__(SparseVector self, float scalar):
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   (__pyx_v_self->vector[0]) /= __pyx_v_scalar;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":123
+  /* "/home/mdenkows/cdec/python/cdec/vectors.pxi":123
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@@ -4588,17 +4588,17 @@ static PyObject *__pyx_pf_5_cdec_12SparseVector_29__idiv__(struct __pyx_obj_5_cd
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-static PyObject *__pyx_pw_5_cdec_12SparseVector_32__add__(PyObject *__pyx_v_x, PyObject *__pyx_v_y) {
+static PyObject *__pyx_pw_4cdec_5_cdec_12SparseVector_32__add__(PyObject *__pyx_v_x, PyObject *__pyx_v_y); /*proto*/
+static PyObject *__pyx_pw_4cdec_5_cdec_12SparseVector_32__add__(PyObject *__pyx_v_x, PyObject *__pyx_v_y) {
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   __Pyx_RefNannySetupContext("__add__ (wrapper)", 0);
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-  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_y), __pyx_ptype_5_cdec_SparseVector, 1, "y", 0))) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 125; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_r = __pyx_pf_5_cdec_12SparseVector_31__add__(((struct __pyx_obj_5_cdec_SparseVector *)__pyx_v_x), ((struct __pyx_obj_5_cdec_SparseVector *)__pyx_v_y));
+  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_x), __pyx_ptype_4cdec_5_cdec_SparseVector, 1, "x", 0))) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 125; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_y), __pyx_ptype_4cdec_5_cdec_SparseVector, 1, "y", 0))) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 125; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_r = __pyx_pf_4cdec_5_cdec_12SparseVector_31__add__(((struct __pyx_obj_4cdec_5_cdec_SparseVector *)__pyx_v_x), ((struct __pyx_obj_4cdec_5_cdec_SparseVector *)__pyx_v_y));
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 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":125
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-static PyObject *__pyx_pf_5_cdec_12SparseVector_31__add__(struct __pyx_obj_5_cdec_SparseVector *__pyx_v_x, struct __pyx_obj_5_cdec_SparseVector *__pyx_v_y) {
-  struct __pyx_obj_5_cdec_SparseVector *__pyx_v_result = 0;
+static PyObject *__pyx_pf_4cdec_5_cdec_12SparseVector_31__add__(struct __pyx_obj_4cdec_5_cdec_SparseVector *__pyx_v_x, struct __pyx_obj_4cdec_5_cdec_SparseVector *__pyx_v_y) {
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@@ -4625,20 +4625,20 @@ static PyObject *__pyx_pf_5_cdec_12SparseVector_31__add__(struct __pyx_obj_5_cde
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":126
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":128
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":132
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":133
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":148
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":149
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":150
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":151
+  /* "/home/mdenkows/cdec/python/cdec/vectors.pxi":151
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-  __Pyx_AddTraceback("_cdec.SparseVector.__div__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.SparseVector.__div__", __pyx_clineno, __pyx_lineno, __pyx_filename);
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+static PyObject *__pyx_gb_4cdec_5_cdec_7_phrase_2generator18(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":6
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-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":5
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":6
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-static PyObject *__pyx_pf_5_cdec_5NTRef_2__str__(struct __pyx_obj_5_cdec_NTRef *__pyx_v_self) {
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":28
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  *     def __str__(self):
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-static PyObject *__pyx_pw_5_cdec_5NTRef_3ref_1__get__(PyObject *__pyx_v_self) {
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-static PyObject *__pyx_pf_5_cdec_5NTRef_3ref___get__(struct __pyx_obj_5_cdec_NTRef *__pyx_v_self) {
+static PyObject *__pyx_pf_4cdec_5_cdec_5NTRef_3ref___get__(struct __pyx_obj_4cdec_5_cdec_NTRef *__pyx_v_self) {
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+  __pyx_r = __pyx_pf_4cdec_5_cdec_5NTRef_3ref_2__set__(((struct __pyx_obj_4cdec_5_cdec_NTRef *)__pyx_v_self), ((PyObject *)__pyx_v_value));
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+static int __pyx_pf_4cdec_5_cdec_5NTRef_3ref_2__set__(struct __pyx_obj_4cdec_5_cdec_NTRef *__pyx_v_self, PyObject *__pyx_v_value) {
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-static struct __pyx_obj_5_cdec_TRule *__pyx_f_5_cdec_convert_rule(struct __pyx_obj_4cdec_2sa_3_sa_Rule *__pyx_v_rule) {
+static struct __pyx_obj_4cdec_5_cdec_TRule *__pyx_f_4cdec_5_cdec_convert_rule(struct __pyx_obj_4cdec_2sa_3_sa_Rule *__pyx_v_rule) {
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-  struct __pyx_obj_5_cdec_TRule *__pyx_r = NULL;
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":32
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":33
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":34
+  /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":34
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":35
+  /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":35
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":36
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-      /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":37
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-      /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":39
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":40
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":41
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":42
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-      /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":43
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   __Pyx_XDECREF(__pyx_v_scores);
@@ -6134,12 +6134,12 @@ static struct __pyx_obj_5_cdec_TRule *__pyx_f_5_cdec_convert_rule(struct __pyx_o
 }
 
 /* Python wrapper */
-static int __pyx_pw_5_cdec_5TRule_1__init__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static char __pyx_doc_5_cdec_5TRule___init__[] = "TRule(lhs, f, e, scores, a=None) -> Translation rule.\n        lhs: left hand side non-terminal\n        f: source phrase (list of words/NT)\n        e: target phrase (list of words/NTRef)\n        scores: dictionary of feature scores\n        a: optional list of alignment points";
+static int __pyx_pw_4cdec_5_cdec_5TRule_1__init__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static char __pyx_doc_4cdec_5_cdec_5TRule___init__[] = "TRule(lhs, f, e, scores, a=None) -> Translation rule.\n        lhs: left hand side non-terminal\n        f: source phrase (list of words/NT)\n        e: target phrase (list of words/NTRef)\n        scores: dictionary of feature scores\n        a: optional list of alignment points";
 #if CYTHON_COMPILING_IN_CPYTHON
-struct wrapperbase __pyx_wrapperbase_5_cdec_5TRule___init__;
+struct wrapperbase __pyx_wrapperbase_4cdec_5_cdec_5TRule___init__;
 #endif
-static int __pyx_pw_5_cdec_5TRule_1__init__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static int __pyx_pw_4cdec_5_cdec_5TRule_1__init__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_lhs = 0;
   PyObject *__pyx_v_f = 0;
   PyObject *__pyx_v_e = 0;
@@ -6155,7 +6155,7 @@ static int __pyx_pw_5_cdec_5TRule_1__init__(PyObject *__pyx_v_self, PyObject *__
     static PyObject **__pyx_pyargnames[] = {&__pyx_n_s__lhs,&__pyx_n_s__f,&__pyx_n_s__e,&__pyx_n_s__scores,&__pyx_n_s__a,0};
     PyObject* values[5] = {0,0,0,0,0};
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":52
+    /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":52
  *     cdef shared_ptr[grammar.TRule]* rule
  * 
  *     def __init__(self, lhs, f, e, scores, a=None):             # <<<<<<<<<<<<<<
@@ -6225,16 +6225,16 @@ static int __pyx_pw_5_cdec_5TRule_1__init__(PyObject *__pyx_v_self, PyObject *__
   __pyx_L5_argtuple_error:;
   __Pyx_RaiseArgtupleInvalid("__init__", 0, 4, 5, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[2]; __pyx_lineno = 52; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
-  __Pyx_AddTraceback("_cdec.TRule.__init__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.TRule.__init__", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
   return -1;
   __pyx_L4_argument_unpacking_done:;
-  __pyx_r = __pyx_pf_5_cdec_5TRule___init__(((struct __pyx_obj_5_cdec_TRule *)__pyx_v_self), __pyx_v_lhs, __pyx_v_f, __pyx_v_e, __pyx_v_scores, __pyx_v_a);
+  __pyx_r = __pyx_pf_4cdec_5_cdec_5TRule___init__(((struct __pyx_obj_4cdec_5_cdec_TRule *)__pyx_v_self), __pyx_v_lhs, __pyx_v_f, __pyx_v_e, __pyx_v_scores, __pyx_v_a);
   __Pyx_RefNannyFinishContext();
   return __pyx_r;
 }
 
-static int __pyx_pf_5_cdec_5TRule___init__(struct __pyx_obj_5_cdec_TRule *__pyx_v_self, PyObject *__pyx_v_lhs, PyObject *__pyx_v_f, PyObject *__pyx_v_e, PyObject *__pyx_v_scores, PyObject *__pyx_v_a) {
+static int __pyx_pf_4cdec_5_cdec_5TRule___init__(struct __pyx_obj_4cdec_5_cdec_TRule *__pyx_v_self, PyObject *__pyx_v_lhs, PyObject *__pyx_v_f, PyObject *__pyx_v_e, PyObject *__pyx_v_scores, PyObject *__pyx_v_a) {
   int __pyx_r;
   __Pyx_RefNannyDeclarations
   TRule *__pyx_t_1;
@@ -6244,7 +6244,7 @@ static int __pyx_pf_5_cdec_5TRule___init__(struct __pyx_obj_5_cdec_TRule *__pyx_
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__init__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":59
+  /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":59
  *         scores: dictionary of feature scores
  *         a: optional list of alignment points"""
  *         self.rule = new shared_ptr[grammar.TRule](new grammar.TRule())             # <<<<<<<<<<<<<<
@@ -6259,7 +6259,7 @@ static int __pyx_pf_5_cdec_5TRule___init__(struct __pyx_obj_5_cdec_TRule *__pyx_
   }
   __pyx_v_self->rule = new boost::shared_ptr<TRule>(__pyx_t_1);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":60
+  /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":60
  *         a: optional list of alignment points"""
  *         self.rule = new shared_ptr[grammar.TRule](new grammar.TRule())
  *         self.lhs = lhs             # <<<<<<<<<<<<<<
@@ -6268,7 +6268,7 @@ static int __pyx_pf_5_cdec_5TRule___init__(struct __pyx_obj_5_cdec_TRule *__pyx_
  */
   if (__Pyx_PyObject_SetAttrStr(((PyObject *)__pyx_v_self), __pyx_n_s__lhs, __pyx_v_lhs) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 60; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":61
+  /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":61
  *         self.rule = new shared_ptr[grammar.TRule](new grammar.TRule())
  *         self.lhs = lhs
  *         self.e = e             # <<<<<<<<<<<<<<
@@ -6277,7 +6277,7 @@ static int __pyx_pf_5_cdec_5TRule___init__(struct __pyx_obj_5_cdec_TRule *__pyx_
  */
   if (__Pyx_PyObject_SetAttrStr(((PyObject *)__pyx_v_self), __pyx_n_s__e, __pyx_v_e) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 61; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":62
+  /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":62
  *         self.lhs = lhs
  *         self.e = e
  *         self.f = f             # <<<<<<<<<<<<<<
@@ -6286,7 +6286,7 @@ static int __pyx_pf_5_cdec_5TRule___init__(struct __pyx_obj_5_cdec_TRule *__pyx_
  */
   if (__Pyx_PyObject_SetAttrStr(((PyObject *)__pyx_v_self), __pyx_n_s__f, __pyx_v_f) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 62; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":63
+  /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":63
  *         self.e = e
  *         self.f = f
  *         self.scores = scores             # <<<<<<<<<<<<<<
@@ -6295,7 +6295,7 @@ static int __pyx_pf_5_cdec_5TRule___init__(struct __pyx_obj_5_cdec_TRule *__pyx_
  */
   if (__Pyx_PyObject_SetAttrStr(((PyObject *)__pyx_v_self), __pyx_n_s__scores, __pyx_v_scores) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 63; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":64
+  /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":64
  *         self.f = f
  *         self.scores = scores
  *         if a:             # <<<<<<<<<<<<<<
@@ -6305,7 +6305,7 @@ static int __pyx_pf_5_cdec_5TRule___init__(struct __pyx_obj_5_cdec_TRule *__pyx_
   __pyx_t_2 = __Pyx_PyObject_IsTrue(__pyx_v_a); if (unlikely(__pyx_t_2 < 0)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 64; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   if (__pyx_t_2) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":65
+    /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":65
  *         self.scores = scores
  *         if a:
  *             self.a = a             # <<<<<<<<<<<<<<
@@ -6317,7 +6317,7 @@ static int __pyx_pf_5_cdec_5TRule___init__(struct __pyx_obj_5_cdec_TRule *__pyx_
   }
   __pyx_L3:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":66
+  /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":66
  *         if a:
  *             self.a = a
  *         self.rule.get().ComputeArity()             # <<<<<<<<<<<<<<
@@ -6329,7 +6329,7 @@ static int __pyx_pf_5_cdec_5TRule___init__(struct __pyx_obj_5_cdec_TRule *__pyx_
   __pyx_r = 0;
   goto __pyx_L0;
   __pyx_L1_error:;
-  __Pyx_AddTraceback("_cdec.TRule.__init__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.TRule.__init__", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __pyx_r = -1;
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@@ -6337,15 +6337,15 @@ static int __pyx_pf_5_cdec_5TRule___init__(struct __pyx_obj_5_cdec_TRule *__pyx_
 }
 
 /* Python wrapper */
-static void __pyx_pw_5_cdec_5TRule_3__dealloc__(PyObject *__pyx_v_self); /*proto*/
-static void __pyx_pw_5_cdec_5TRule_3__dealloc__(PyObject *__pyx_v_self) {
+static void __pyx_pw_4cdec_5_cdec_5TRule_3__dealloc__(PyObject *__pyx_v_self); /*proto*/
+static void __pyx_pw_4cdec_5_cdec_5TRule_3__dealloc__(PyObject *__pyx_v_self) {
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-  __pyx_pf_5_cdec_5TRule_2__dealloc__(((struct __pyx_obj_5_cdec_TRule *)__pyx_v_self));
+  __pyx_pf_4cdec_5_cdec_5TRule_2__dealloc__(((struct __pyx_obj_4cdec_5_cdec_TRule *)__pyx_v_self));
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-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":68
+/* "/home/mdenkows/cdec/python/cdec/grammar.pxi":68
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  * 
  *     def __dealloc__(self):             # <<<<<<<<<<<<<<
@@ -6353,11 +6353,11 @@ static void __pyx_pw_5_cdec_5TRule_3__dealloc__(PyObject *__pyx_v_self) {
  * 
  */
 
-static void __pyx_pf_5_cdec_5TRule_2__dealloc__(CYTHON_UNUSED struct __pyx_obj_5_cdec_TRule *__pyx_v_self) {
+static void __pyx_pf_4cdec_5_cdec_5TRule_2__dealloc__(CYTHON_UNUSED struct __pyx_obj_4cdec_5_cdec_TRule *__pyx_v_self) {
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":69
+  /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":69
  * 
  *     def __dealloc__(self):
  *         del self.rule             # <<<<<<<<<<<<<<
@@ -6370,17 +6370,17 @@ static void __pyx_pf_5_cdec_5TRule_2__dealloc__(CYTHON_UNUSED struct __pyx_obj_5
 }
 
 /* Python wrapper */
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-static PyObject *__pyx_pw_5_cdec_5TRule_5arity_1__get__(PyObject *__pyx_v_self) {
+static PyObject *__pyx_pw_4cdec_5_cdec_5TRule_5arity_1__get__(PyObject *__pyx_v_self); /*proto*/
+static PyObject *__pyx_pw_4cdec_5_cdec_5TRule_5arity_1__get__(PyObject *__pyx_v_self) {
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   __Pyx_RefNannySetupContext("__get__ (wrapper)", 0);
-  __pyx_r = __pyx_pf_5_cdec_5TRule_5arity___get__(((struct __pyx_obj_5_cdec_TRule *)__pyx_v_self));
+  __pyx_r = __pyx_pf_4cdec_5_cdec_5TRule_5arity___get__(((struct __pyx_obj_4cdec_5_cdec_TRule *)__pyx_v_self));
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-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":72
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  * 
  *     property arity:
  *         def __get__(self):             # <<<<<<<<<<<<<<
@@ -6388,7 +6388,7 @@ static PyObject *__pyx_pw_5_cdec_5TRule_5arity_1__get__(PyObject *__pyx_v_self)
  * 
  */
 
-static PyObject *__pyx_pf_5_cdec_5TRule_5arity___get__(struct __pyx_obj_5_cdec_TRule *__pyx_v_self) {
+static PyObject *__pyx_pf_4cdec_5_cdec_5TRule_5arity___get__(struct __pyx_obj_4cdec_5_cdec_TRule *__pyx_v_self) {
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@@ -6397,7 +6397,7 @@ static PyObject *__pyx_pf_5_cdec_5TRule_5arity___get__(struct __pyx_obj_5_cdec_T
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   __Pyx_RefNannySetupContext("__get__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":73
+  /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":73
  *     property arity:
  *         def __get__(self):
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@@ -6415,7 +6415,7 @@ static PyObject *__pyx_pf_5_cdec_5TRule_5arity___get__(struct __pyx_obj_5_cdec_T
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-  __Pyx_AddTraceback("_cdec.TRule.arity.__get__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.TRule.arity.__get__", __pyx_clineno, __pyx_lineno, __pyx_filename);
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@@ -6424,17 +6424,17 @@ static PyObject *__pyx_pf_5_cdec_5TRule_5arity___get__(struct __pyx_obj_5_cdec_T
 }
 
 /* Python wrapper */
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-static PyObject *__pyx_pw_5_cdec_5TRule_1f_1__get__(PyObject *__pyx_v_self) {
+static PyObject *__pyx_pw_4cdec_5_cdec_5TRule_1f_1__get__(PyObject *__pyx_v_self); /*proto*/
+static PyObject *__pyx_pw_4cdec_5_cdec_5TRule_1f_1__get__(PyObject *__pyx_v_self) {
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-  __pyx_r = __pyx_pf_5_cdec_5TRule_1f___get__(((struct __pyx_obj_5_cdec_TRule *)__pyx_v_self));
+  __pyx_r = __pyx_pf_4cdec_5_cdec_5TRule_1f___get__(((struct __pyx_obj_4cdec_5_cdec_TRule *)__pyx_v_self));
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-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":76
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  * 
  *     property f:
  *         def __get__(self):             # <<<<<<<<<<<<<<
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  */
 
-static PyObject *__pyx_pf_5_cdec_5TRule_1f___get__(struct __pyx_obj_5_cdec_TRule *__pyx_v_self) {
+static PyObject *__pyx_pf_4cdec_5_cdec_5TRule_1f___get__(struct __pyx_obj_4cdec_5_cdec_TRule *__pyx_v_self) {
   std::vector<WordID> *__pyx_v_f_;
   WordID __pyx_v_w;
   PyObject *__pyx_v_f = 0;
@@ -6461,7 +6461,7 @@ static PyObject *__pyx_pf_5_cdec_5TRule_1f___get__(struct __pyx_obj_5_cdec_TRule
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":77
+  /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":77
  *     property f:
  *         def __get__(self):
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@@ -6470,7 +6470,7 @@ static PyObject *__pyx_pf_5_cdec_5TRule_1f___get__(struct __pyx_obj_5_cdec_TRule
  */
   __pyx_v_f_ = (&__pyx_v_self->rule->get()->f_);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":79
+  /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":79
  *             cdef vector[WordID]* f_ = &self.rule.get().f_
  *             cdef WordID w
  *             cdef f = []             # <<<<<<<<<<<<<<
@@ -6482,7 +6482,7 @@ static PyObject *__pyx_pf_5_cdec_5TRule_1f___get__(struct __pyx_obj_5_cdec_TRule
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   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":81
+  /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":81
  *             cdef f = []
  *             cdef unsigned i
  *             cdef int idx = 0             # <<<<<<<<<<<<<<
@@ -6491,7 +6491,7 @@ static PyObject *__pyx_pf_5_cdec_5TRule_1f___get__(struct __pyx_obj_5_cdec_TRule
  */
   __pyx_v_idx = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":82
+  /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":82
  *             cdef unsigned i
  *             cdef int idx = 0
  *             for i in range(f_.size()):             # <<<<<<<<<<<<<<
@@ -6502,7 +6502,7 @@ static PyObject *__pyx_pf_5_cdec_5TRule_1f___get__(struct __pyx_obj_5_cdec_TRule
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     __pyx_v_i = __pyx_t_3;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":83
+    /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":83
  *             cdef int idx = 0
  *             for i in range(f_.size()):
  *                 w = f_[0][i]             # <<<<<<<<<<<<<<
@@ -6511,7 +6511,7 @@ static PyObject *__pyx_pf_5_cdec_5TRule_1f___get__(struct __pyx_obj_5_cdec_TRule
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     __pyx_v_w = ((__pyx_v_f_[0])[__pyx_v_i]);
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":84
+    /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":84
  *             for i in range(f_.size()):
  *                 w = f_[0][i]
  *                 if w < 0:             # <<<<<<<<<<<<<<
@@ -6521,7 +6521,7 @@ static PyObject *__pyx_pf_5_cdec_5TRule_1f___get__(struct __pyx_obj_5_cdec_TRule
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     if (__pyx_t_4) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":85
+      /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":85
  *                 w = f_[0][i]
  *                 if w < 0:
  *                     idx += 1             # <<<<<<<<<<<<<<
@@ -6530,7 +6530,7 @@ static PyObject *__pyx_pf_5_cdec_5TRule_1f___get__(struct __pyx_obj_5_cdec_TRule
  */
       __pyx_v_idx = (__pyx_v_idx + 1);
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":86
+      /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":86
  *                 if w < 0:
  *                     idx += 1
  *                     f.append(NT(TDConvert(-w).c_str(), idx))             # <<<<<<<<<<<<<<
@@ -6549,7 +6549,7 @@ static PyObject *__pyx_pf_5_cdec_5TRule_1f___get__(struct __pyx_obj_5_cdec_TRule
       __Pyx_GIVEREF(__pyx_t_5);
       __pyx_t_1 = 0;
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-      /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":88
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":89
+  /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":89
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+  __Pyx_AddTraceback("cdec._cdec.TRule.f.__get__", __pyx_clineno, __pyx_lineno, __pyx_filename);
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 }
 
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-static int __pyx_pw_5_cdec_5TRule_1f_3__set__(PyObject *__pyx_v_self, PyObject *__pyx_v_f) {
+static int __pyx_pw_4cdec_5_cdec_5TRule_1f_3__set__(PyObject *__pyx_v_self, PyObject *__pyx_v_f); /*proto*/
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+  __pyx_r = __pyx_pf_4cdec_5_cdec_5TRule_1f_2__set__(((struct __pyx_obj_4cdec_5_cdec_TRule *)__pyx_v_self), ((PyObject *)__pyx_v_f));
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-static int __pyx_pf_5_cdec_5TRule_1f_2__set__(struct __pyx_obj_5_cdec_TRule *__pyx_v_self, PyObject *__pyx_v_f) {
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":93
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":95
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":96
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":97
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-      /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":98
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-      /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":100
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-      /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":101
+      /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":101
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+  __Pyx_AddTraceback("cdec._cdec.TRule.f.__set__", __pyx_clineno, __pyx_lineno, __pyx_filename);
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-static PyObject *__pyx_pf_5_cdec_5TRule_1e___get__(struct __pyx_obj_5_cdec_TRule *__pyx_v_self) {
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":105
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":107
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":109
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":111
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":117
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+  __Pyx_AddTraceback("cdec._cdec.TRule.e.__get__", __pyx_clineno, __pyx_lineno, __pyx_filename);
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-static int __pyx_pw_5_cdec_5TRule_1e_3__set__(PyObject *__pyx_v_self, PyObject *__pyx_v_e) {
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-static int __pyx_pf_5_cdec_5TRule_1e_2__set__(struct __pyx_obj_5_cdec_TRule *__pyx_v_self, PyObject *__pyx_v_e) {
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":121
+  /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":121
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":123
+  /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":123
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":124
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-      /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":125
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-      /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":127
+      /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":127
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-      /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":128
+      /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":128
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+static PyObject *__pyx_gb_4cdec_5_cdec_5TRule_1a_2generator2(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
 
 /* Python wrapper */
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-static PyObject *__pyx_pw_5_cdec_5TRule_1a_1__get__(PyObject *__pyx_v_self) {
+static PyObject *__pyx_pw_4cdec_5_cdec_5TRule_1a_1__get__(PyObject *__pyx_v_self); /*proto*/
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+  __pyx_r = __pyx_pf_4cdec_5_cdec_5TRule_1a___get__(((struct __pyx_obj_4cdec_5_cdec_TRule *)__pyx_v_self));
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-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":131
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-static PyObject *__pyx_pf_5_cdec_5TRule_1a___get__(struct __pyx_obj_5_cdec_TRule *__pyx_v_self) {
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+static PyObject *__pyx_pf_4cdec_5_cdec_5TRule_1a___get__(struct __pyx_obj_4cdec_5_cdec_TRule *__pyx_v_self) {
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+  __pyx_cur_scope = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_4___get__ *)__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_4___get__(__pyx_ptype_4cdec_5_cdec___pyx_scope_struct_4___get__, __pyx_empty_tuple, NULL);
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+    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_4cdec_5_cdec_5TRule_1a_2generator2, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 131; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-  __Pyx_AddTraceback("_cdec.TRule.a.__get__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.TRule.a.__get__", __pyx_clineno, __pyx_lineno, __pyx_filename);
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 }
 
-static PyObject *__pyx_gb_5_cdec_5TRule_1a_2generator2(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
+static PyObject *__pyx_gb_4cdec_5_cdec_5TRule_1a_2generator2(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
 {
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+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_4___get__ *__pyx_cur_scope = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_4___get__ *)__pyx_generator->closure);
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":133
+  /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":133
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":134
+  /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":134
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":135
+    /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":135
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-static int __pyx_pw_5_cdec_5TRule_1a_4__set__(PyObject *__pyx_v_self, PyObject *__pyx_v_a) {
+static int __pyx_pw_4cdec_5_cdec_5TRule_1a_4__set__(PyObject *__pyx_v_self, PyObject *__pyx_v_a); /*proto*/
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+  __pyx_r = __pyx_pf_4cdec_5_cdec_5TRule_1a_3__set__(((struct __pyx_obj_4cdec_5_cdec_TRule *)__pyx_v_self), ((PyObject *)__pyx_v_a));
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-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":137
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-static int __pyx_pf_5_cdec_5TRule_1a_3__set__(struct __pyx_obj_5_cdec_TRule *__pyx_v_self, PyObject *__pyx_v_a) {
+static int __pyx_pf_4cdec_5_cdec_5TRule_1a_3__set__(struct __pyx_obj_4cdec_5_cdec_TRule *__pyx_v_self, PyObject *__pyx_v_a) {
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":138
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":139
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":142
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":143
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":144
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":170
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-static PyObject *__pyx_gb_5_cdec_5TRule_7__str___2generator19(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
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 {
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-  struct __pyx_obj_5_cdec___pyx_scope_struct_5___str__ *__pyx_cur_scope;
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":174
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+static int __pyx_pw_4cdec_5_cdec_5MRule_1__init__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
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 #if CYTHON_COMPILING_IN_CPYTHON
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 #endif
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":183
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":184
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":185
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":186
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-      /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":188
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-      /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":190
+      /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":190
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":191
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-  __Pyx_GIVEREF(((PyObject *)((PyObject*)__pyx_ptype_5_cdec_MRule)));
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 /* Python wrapper */
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-static void __pyx_pw_5_cdec_7Grammar_1__dealloc__(PyObject *__pyx_v_self) {
+static void __pyx_pw_4cdec_5_cdec_7Grammar_1__dealloc__(PyObject *__pyx_v_self); /*proto*/
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-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":196
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-static void __pyx_pf_5_cdec_7Grammar___dealloc__(CYTHON_UNUSED struct __pyx_obj_5_cdec_Grammar *__pyx_v_self) {
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":197
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 /* Python wrapper */
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-static PyObject *__pyx_pw_5_cdec_7Grammar_3__iter__(PyObject *__pyx_v_self) {
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-  struct __pyx_obj_5_cdec___pyx_scope_struct_7___iter__ *__pyx_cur_scope;
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":201
+  /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":201
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":204
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":205
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":207
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-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":213
+/* "/home/mdenkows/cdec/python/cdec/grammar.pxi":213
  *             str(self.grammar.get().GetGrammarName().c_str())
  * 
  *         def __set__(self, name):             # <<<<<<<<<<<<<<
@@ -8732,7 +8732,7 @@ static int __pyx_pw_5_cdec_7Grammar_4name_3__set__(PyObject *__pyx_v_self, PyObj
  *             self.grammar.get().SetGrammarName(name)
  */
 
-static int __pyx_pf_5_cdec_7Grammar_4name_2__set__(struct __pyx_obj_5_cdec_Grammar *__pyx_v_self, PyObject *__pyx_v_name) {
+static int __pyx_pf_4cdec_5_cdec_7Grammar_4name_2__set__(struct __pyx_obj_4cdec_5_cdec_Grammar *__pyx_v_self, PyObject *__pyx_v_name) {
   int __pyx_r;
   __Pyx_RefNannyDeclarations
   PyObject *__pyx_t_1 = NULL;
@@ -8743,20 +8743,20 @@ static int __pyx_pf_5_cdec_7Grammar_4name_2__set__(struct __pyx_obj_5_cdec_Gramm
   __Pyx_RefNannySetupContext("__set__", 0);
   __Pyx_INCREF(__pyx_v_name);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":214
+  /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":214
  * 
  *         def __set__(self, name):
  *             name = as_str(name)             # <<<<<<<<<<<<<<
  *             self.grammar.get().SetGrammarName(name)
  * 
  */
-  __pyx_t_1 = ((PyObject *)__pyx_f_5_cdec_as_str(__pyx_v_name, NULL)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 214; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = ((PyObject *)__pyx_f_4cdec_5_cdec_as_str(__pyx_v_name, NULL)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 214; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(__pyx_v_name);
   __pyx_v_name = __pyx_t_1;
   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":215
+  /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":215
  *         def __set__(self, name):
  *             name = as_str(name)
  *             self.grammar.get().SetGrammarName(name)             # <<<<<<<<<<<<<<
@@ -8770,7 +8770,7 @@ static int __pyx_pf_5_cdec_7Grammar_4name_2__set__(struct __pyx_obj_5_cdec_Gramm
   goto __pyx_L0;
   __pyx_L1_error:;
   __Pyx_XDECREF(__pyx_t_1);
-  __Pyx_AddTraceback("_cdec.Grammar.name.__set__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.Grammar.name.__set__", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __pyx_r = -1;
   __pyx_L0:;
   __Pyx_XDECREF(__pyx_v_name);
@@ -8779,12 +8779,12 @@ static int __pyx_pf_5_cdec_7Grammar_4name_2__set__(struct __pyx_obj_5_cdec_Gramm
 }
 
 /* Python wrapper */
-static int __pyx_pw_5_cdec_11TextGrammar_1__init__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static char __pyx_doc_5_cdec_11TextGrammar___init__[] = "TextGrammar(rules) -> SCFG Grammar containing the rules.";
+static int __pyx_pw_4cdec_5_cdec_11TextGrammar_1__init__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static char __pyx_doc_4cdec_5_cdec_11TextGrammar___init__[] = "TextGrammar(rules) -> SCFG Grammar containing the rules.";
 #if CYTHON_COMPILING_IN_CPYTHON
-struct wrapperbase __pyx_wrapperbase_5_cdec_11TextGrammar___init__;
+struct wrapperbase __pyx_wrapperbase_4cdec_5_cdec_11TextGrammar___init__;
 #endif
-static int __pyx_pw_5_cdec_11TextGrammar_1__init__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static int __pyx_pw_4cdec_5_cdec_11TextGrammar_1__init__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_rules = 0;
   int __pyx_lineno = 0;
   const char *__pyx_filename = NULL;
@@ -8823,16 +8823,16 @@ static int __pyx_pw_5_cdec_11TextGrammar_1__init__(PyObject *__pyx_v_self, PyObj
   __pyx_L5_argtuple_error:;
   __Pyx_RaiseArgtupleInvalid("__init__", 1, 1, 1, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[2]; __pyx_lineno = 218; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
-  __Pyx_AddTraceback("_cdec.TextGrammar.__init__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.TextGrammar.__init__", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
   return -1;
   __pyx_L4_argument_unpacking_done:;
-  __pyx_r = __pyx_pf_5_cdec_11TextGrammar___init__(((struct __pyx_obj_5_cdec_TextGrammar *)__pyx_v_self), __pyx_v_rules);
+  __pyx_r = __pyx_pf_4cdec_5_cdec_11TextGrammar___init__(((struct __pyx_obj_4cdec_5_cdec_TextGrammar *)__pyx_v_self), __pyx_v_rules);
   __Pyx_RefNannyFinishContext();
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":218
+/* "/home/mdenkows/cdec/python/cdec/grammar.pxi":218
  * 
  * cdef class TextGrammar(Grammar):
  *     def __init__(self, rules):             # <<<<<<<<<<<<<<
@@ -8840,7 +8840,7 @@ static int __pyx_pw_5_cdec_11TextGrammar_1__init__(PyObject *__pyx_v_self, PyObj
  *         self.grammar = new shared_ptr[grammar.Grammar](new grammar.TextGrammar())
  */
 
-static int __pyx_pf_5_cdec_11TextGrammar___init__(struct __pyx_obj_5_cdec_TextGrammar *__pyx_v_self, PyObject *__pyx_v_rules) {
+static int __pyx_pf_4cdec_5_cdec_11TextGrammar___init__(struct __pyx_obj_4cdec_5_cdec_TextGrammar *__pyx_v_self, PyObject *__pyx_v_rules) {
   TextGrammar *__pyx_v__g;
   PyObject *__pyx_v_trule = NULL;
   int __pyx_r;
@@ -8856,7 +8856,7 @@ static int __pyx_pf_5_cdec_11TextGrammar___init__(struct __pyx_obj_5_cdec_TextGr
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__init__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":220
+  /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":220
  *     def __init__(self, rules):
  *         """TextGrammar(rules) -> SCFG Grammar containing the rules."""
  *         self.grammar = new shared_ptr[grammar.Grammar](new grammar.TextGrammar())             # <<<<<<<<<<<<<<
@@ -8865,7 +8865,7 @@ static int __pyx_pf_5_cdec_11TextGrammar___init__(struct __pyx_obj_5_cdec_TextGr
  */
   __pyx_v_self->__pyx_base.grammar = new boost::shared_ptr<Grammar>(new TextGrammar());
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":221
+  /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":221
  *         """TextGrammar(rules) -> SCFG Grammar containing the rules."""
  *         self.grammar = new shared_ptr[grammar.Grammar](new grammar.TextGrammar())
  *         cdef grammar.TextGrammar* _g = <grammar.TextGrammar*> self.grammar.get()             # <<<<<<<<<<<<<<
@@ -8874,7 +8874,7 @@ static int __pyx_pf_5_cdec_11TextGrammar___init__(struct __pyx_obj_5_cdec_TextGr
  */
   __pyx_v__g = ((TextGrammar *)__pyx_v_self->__pyx_base.grammar->get());
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":222
+  /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":222
  *         self.grammar = new shared_ptr[grammar.Grammar](new grammar.TextGrammar())
  *         cdef grammar.TextGrammar* _g = <grammar.TextGrammar*> self.grammar.get()
  *         for trule in rules:             # <<<<<<<<<<<<<<
@@ -8919,7 +8919,7 @@ static int __pyx_pf_5_cdec_11TextGrammar___init__(struct __pyx_obj_5_cdec_TextGr
     __pyx_v_trule = __pyx_t_4;
     __pyx_t_4 = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":223
+    /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":223
  *         cdef grammar.TextGrammar* _g = <grammar.TextGrammar*> self.grammar.get()
  *         for trule in rules:
  *             if isinstance(trule, _sa.Rule):             # <<<<<<<<<<<<<<
@@ -8930,7 +8930,7 @@ static int __pyx_pf_5_cdec_11TextGrammar___init__(struct __pyx_obj_5_cdec_TextGr
     __pyx_t_6 = (__pyx_t_5 != 0);
     if (__pyx_t_6) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":224
+      /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":224
  *         for trule in rules:
  *             if isinstance(trule, _sa.Rule):
  *                 trule = convert_rule(trule)             # <<<<<<<<<<<<<<
@@ -8938,7 +8938,7 @@ static int __pyx_pf_5_cdec_11TextGrammar___init__(struct __pyx_obj_5_cdec_TextGr
  *                 raise ValueError('the grammar should contain TRule objects')
  */
       if (!(likely(((__pyx_v_trule) == Py_None) || likely(__Pyx_TypeTest(__pyx_v_trule, __pyx_ptype_4cdec_2sa_3_sa_Rule))))) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 224; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __pyx_t_4 = ((PyObject *)__pyx_f_5_cdec_convert_rule(((struct __pyx_obj_4cdec_2sa_3_sa_Rule *)__pyx_v_trule))); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 224; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = ((PyObject *)__pyx_f_4cdec_5_cdec_convert_rule(((struct __pyx_obj_4cdec_2sa_3_sa_Rule *)__pyx_v_trule))); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 224; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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       __Pyx_DECREF(__pyx_v_trule);
       __pyx_v_trule = __pyx_t_4;
@@ -8946,18 +8946,18 @@ static int __pyx_pf_5_cdec_11TextGrammar___init__(struct __pyx_obj_5_cdec_TextGr
       goto __pyx_L5;
     }
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":225
+    /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":225
  *             if isinstance(trule, _sa.Rule):
  *                 trule = convert_rule(trule)
  *             elif not isinstance(trule, TRule):             # <<<<<<<<<<<<<<
  *                 raise ValueError('the grammar should contain TRule objects')
  *             _g.AddRule((<TRule> trule).rule[0])
  */
-    __pyx_t_6 = __Pyx_TypeCheck(__pyx_v_trule, ((PyObject*)__pyx_ptype_5_cdec_TRule)); 
+    __pyx_t_6 = __Pyx_TypeCheck(__pyx_v_trule, ((PyObject*)__pyx_ptype_4cdec_5_cdec_TRule)); 
     __pyx_t_5 = ((!(__pyx_t_6 != 0)) != 0);
     if (__pyx_t_5) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":226
+      /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":226
  *                 trule = convert_rule(trule)
  *             elif not isinstance(trule, TRule):
  *                 raise ValueError('the grammar should contain TRule objects')             # <<<<<<<<<<<<<<
@@ -8972,12 +8972,12 @@ static int __pyx_pf_5_cdec_11TextGrammar___init__(struct __pyx_obj_5_cdec_TextGr
     }
     __pyx_L5:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":227
+    /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":227
  *             elif not isinstance(trule, TRule):
  *                 raise ValueError('the grammar should contain TRule objects')
  *             _g.AddRule((<TRule> trule).rule[0])             # <<<<<<<<<<<<<<
  */
-    __pyx_v__g->AddRule((((struct __pyx_obj_5_cdec_TRule *)__pyx_v_trule)->rule[0]));
+    __pyx_v__g->AddRule((((struct __pyx_obj_4cdec_5_cdec_TRule *)__pyx_v_trule)->rule[0]));
   }
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@@ -8986,7 +8986,7 @@ static int __pyx_pf_5_cdec_11TextGrammar___init__(struct __pyx_obj_5_cdec_TextGr
   __pyx_L1_error:;
   __Pyx_XDECREF(__pyx_t_1);
   __Pyx_XDECREF(__pyx_t_4);
-  __Pyx_AddTraceback("_cdec.TextGrammar.__init__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.TextGrammar.__init__", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __pyx_r = -1;
   __pyx_L0:;
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@@ -8995,15 +8995,15 @@ static int __pyx_pf_5_cdec_11TextGrammar___init__(struct __pyx_obj_5_cdec_TextGr
 }
 
 /* Python wrapper */
-static void __pyx_pw_5_cdec_10Hypergraph_1__dealloc__(PyObject *__pyx_v_self); /*proto*/
-static void __pyx_pw_5_cdec_10Hypergraph_1__dealloc__(PyObject *__pyx_v_self) {
+static void __pyx_pw_4cdec_5_cdec_10Hypergraph_1__dealloc__(PyObject *__pyx_v_self); /*proto*/
+static void __pyx_pw_4cdec_5_cdec_10Hypergraph_1__dealloc__(PyObject *__pyx_v_self) {
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__dealloc__ (wrapper)", 0);
-  __pyx_pf_5_cdec_10Hypergraph___dealloc__(((struct __pyx_obj_5_cdec_Hypergraph *)__pyx_v_self));
+  __pyx_pf_4cdec_5_cdec_10Hypergraph___dealloc__(((struct __pyx_obj_4cdec_5_cdec_Hypergraph *)__pyx_v_self));
   __Pyx_RefNannyFinishContext();
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":8
+/* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":8
  *     cdef MT19937* rng
  * 
  *     def __dealloc__(self):             # <<<<<<<<<<<<<<
@@ -9011,12 +9011,12 @@ static void __pyx_pw_5_cdec_10Hypergraph_1__dealloc__(PyObject *__pyx_v_self) {
  *         if self.rng != NULL:
  */
 
-static void __pyx_pf_5_cdec_10Hypergraph___dealloc__(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self) {
+static void __pyx_pf_4cdec_5_cdec_10Hypergraph___dealloc__(struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_self) {
   __Pyx_RefNannyDeclarations
   int __pyx_t_1;
   __Pyx_RefNannySetupContext("__dealloc__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":9
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":9
  * 
  *     def __dealloc__(self):
  *         del self.hg             # <<<<<<<<<<<<<<
@@ -9025,7 +9025,7 @@ static void __pyx_pf_5_cdec_10Hypergraph___dealloc__(struct __pyx_obj_5_cdec_Hyp
  */
   delete __pyx_v_self->hg;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":10
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":10
  *     def __dealloc__(self):
  *         del self.hg
  *         if self.rng != NULL:             # <<<<<<<<<<<<<<
@@ -9035,7 +9035,7 @@ static void __pyx_pf_5_cdec_10Hypergraph___dealloc__(struct __pyx_obj_5_cdec_Hyp
   __pyx_t_1 = ((__pyx_v_self->rng != NULL) != 0);
   if (__pyx_t_1) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":11
+    /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":11
  *         del self.hg
  *         if self.rng != NULL:
  *             del self.rng             # <<<<<<<<<<<<<<
@@ -9050,7 +9050,7 @@ static void __pyx_pf_5_cdec_10Hypergraph___dealloc__(struct __pyx_obj_5_cdec_Hyp
   __Pyx_RefNannyFinishContext();
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":13
+/* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":13
  *             del self.rng
  * 
  *     cdef MT19937* _rng(self):             # <<<<<<<<<<<<<<
@@ -9058,7 +9058,7 @@ static void __pyx_pf_5_cdec_10Hypergraph___dealloc__(struct __pyx_obj_5_cdec_Hyp
  *             self.rng = new MT19937()
  */
 
-static MT19937 *__pyx_f_5_cdec_10Hypergraph__rng(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self) {
+static MT19937 *__pyx_f_4cdec_5_cdec_10Hypergraph__rng(struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_self) {
   MT19937 *__pyx_r;
   __Pyx_RefNannyDeclarations
   int __pyx_t_1;
@@ -9068,7 +9068,7 @@ static MT19937 *__pyx_f_5_cdec_10Hypergraph__rng(struct __pyx_obj_5_cdec_Hypergr
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("_rng", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":14
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":14
  * 
  *     cdef MT19937* _rng(self):
  *         if self.rng == NULL:             # <<<<<<<<<<<<<<
@@ -9078,7 +9078,7 @@ static MT19937 *__pyx_f_5_cdec_10Hypergraph__rng(struct __pyx_obj_5_cdec_Hypergr
   __pyx_t_1 = ((__pyx_v_self->rng == NULL) != 0);
   if (__pyx_t_1) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":15
+    /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":15
  *     cdef MT19937* _rng(self):
  *         if self.rng == NULL:
  *             self.rng = new MT19937()             # <<<<<<<<<<<<<<
@@ -9096,7 +9096,7 @@ static MT19937 *__pyx_f_5_cdec_10Hypergraph__rng(struct __pyx_obj_5_cdec_Hypergr
   }
   __pyx_L3:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":16
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":16
  *         if self.rng == NULL:
  *             self.rng = new MT19937()
  *         return self.rng             # <<<<<<<<<<<<<<
@@ -9109,7 +9109,7 @@ static MT19937 *__pyx_f_5_cdec_10Hypergraph__rng(struct __pyx_obj_5_cdec_Hypergr
   __pyx_r = 0;
   goto __pyx_L0;
   __pyx_L1_error:;
-  __Pyx_WriteUnraisable("_cdec.Hypergraph._rng", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_WriteUnraisable("cdec._cdec.Hypergraph._rng", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __pyx_r = 0;
   __pyx_L0:;
   __Pyx_RefNannyFinishContext();
@@ -9117,18 +9117,18 @@ static MT19937 *__pyx_f_5_cdec_10Hypergraph__rng(struct __pyx_obj_5_cdec_Hypergr
 }
 
 /* Python wrapper */
-static PyObject *__pyx_pw_5_cdec_10Hypergraph_3viterbi(PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *unused); /*proto*/
-static char __pyx_doc_5_cdec_10Hypergraph_2viterbi[] = "hg.viterbi() -> String for the best hypothesis in the hypergraph.";
-static PyObject *__pyx_pw_5_cdec_10Hypergraph_3viterbi(PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *unused) {
+static PyObject *__pyx_pw_4cdec_5_cdec_10Hypergraph_3viterbi(PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *unused); /*proto*/
+static char __pyx_doc_4cdec_5_cdec_10Hypergraph_2viterbi[] = "hg.viterbi() -> String for the best hypothesis in the hypergraph.";
+static PyObject *__pyx_pw_4cdec_5_cdec_10Hypergraph_3viterbi(PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *unused) {
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("viterbi (wrapper)", 0);
-  __pyx_r = __pyx_pf_5_cdec_10Hypergraph_2viterbi(((struct __pyx_obj_5_cdec_Hypergraph *)__pyx_v_self));
+  __pyx_r = __pyx_pf_4cdec_5_cdec_10Hypergraph_2viterbi(((struct __pyx_obj_4cdec_5_cdec_Hypergraph *)__pyx_v_self));
   __Pyx_RefNannyFinishContext();
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 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":18
+/* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":18
  *         return self.rng
  * 
  *     def viterbi(self):             # <<<<<<<<<<<<<<
@@ -9136,7 +9136,7 @@ static PyObject *__pyx_pw_5_cdec_10Hypergraph_3viterbi(PyObject *__pyx_v_self, C
  *         cdef vector[WordID] trans
  */
 
-static PyObject *__pyx_pf_5_cdec_10Hypergraph_2viterbi(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self) {
+static PyObject *__pyx_pf_4cdec_5_cdec_10Hypergraph_2viterbi(struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_self) {
   std::vector<WordID> __pyx_v_trans;
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":21
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":21
  *         """hg.viterbi() -> String for the best hypothesis in the hypergraph."""
  *         cdef vector[WordID] trans
  *         hypergraph.ViterbiESentence(self.hg[0], &trans)             # <<<<<<<<<<<<<<
@@ -9156,7 +9156,7 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_2viterbi(struct __pyx_obj_5_cdec_H
  */
   ViterbiESentence((__pyx_v_self->hg[0]), (&__pyx_v_trans));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":22
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":22
  *         cdef vector[WordID] trans
  *         hypergraph.ViterbiESentence(self.hg[0], &trans)
  *         return unicode(GetString(trans).c_str(), 'utf8')             # <<<<<<<<<<<<<<
@@ -9186,7 +9186,7 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_2viterbi(struct __pyx_obj_5_cdec_H
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   __Pyx_XDECREF(__pyx_t_2);
-  __Pyx_AddTraceback("_cdec.Hypergraph.viterbi", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.Hypergraph.viterbi", __pyx_clineno, __pyx_lineno, __pyx_filename);
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@@ -9195,18 +9195,18 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_2viterbi(struct __pyx_obj_5_cdec_H
 }
 
 /* Python wrapper */
-static PyObject *__pyx_pw_5_cdec_10Hypergraph_5viterbi_trees(PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *unused); /*proto*/
-static char __pyx_doc_5_cdec_10Hypergraph_4viterbi_trees[] = "hg.viterbi_trees() -> (f_tree, e_tree)\n        f_tree: Source tree for the best hypothesis in the hypergraph.\n        e_tree: Target tree for the best hypothesis in the hypergraph.\n        ";
-static PyObject *__pyx_pw_5_cdec_10Hypergraph_5viterbi_trees(PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *unused) {
+static PyObject *__pyx_pw_4cdec_5_cdec_10Hypergraph_5viterbi_trees(PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *unused); /*proto*/
+static char __pyx_doc_4cdec_5_cdec_10Hypergraph_4viterbi_trees[] = "hg.viterbi_trees() -> (f_tree, e_tree)\n        f_tree: Source tree for the best hypothesis in the hypergraph.\n        e_tree: Target tree for the best hypothesis in the hypergraph.\n        ";
+static PyObject *__pyx_pw_4cdec_5_cdec_10Hypergraph_5viterbi_trees(PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *unused) {
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-  __pyx_r = __pyx_pf_5_cdec_10Hypergraph_4viterbi_trees(((struct __pyx_obj_5_cdec_Hypergraph *)__pyx_v_self));
+  __pyx_r = __pyx_pf_4cdec_5_cdec_10Hypergraph_4viterbi_trees(((struct __pyx_obj_4cdec_5_cdec_Hypergraph *)__pyx_v_self));
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-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":24
+/* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":24
  *         return unicode(GetString(trans).c_str(), 'utf8')
  * 
  *     def viterbi_trees(self):             # <<<<<<<<<<<<<<
@@ -9214,7 +9214,7 @@ static PyObject *__pyx_pw_5_cdec_10Hypergraph_5viterbi_trees(PyObject *__pyx_v_s
  *         f_tree: Source tree for the best hypothesis in the hypergraph.
  */
 
-static PyObject *__pyx_pf_5_cdec_10Hypergraph_4viterbi_trees(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self) {
+static PyObject *__pyx_pf_4cdec_5_cdec_10Hypergraph_4viterbi_trees(struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_self) {
   PyObject *__pyx_v_f_tree = NULL;
   PyObject *__pyx_v_e_tree = NULL;
   PyObject *__pyx_r = NULL;
@@ -9226,7 +9226,7 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_4viterbi_trees(struct __pyx_obj_5_
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   __Pyx_RefNannySetupContext("viterbi_trees", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":29
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":29
  *         e_tree: Target tree for the best hypothesis in the hypergraph.
  *         """
  *         f_tree = unicode(hypergraph.ViterbiFTree(self.hg[0]).c_str(), 'utf8')             # <<<<<<<<<<<<<<
@@ -9249,7 +9249,7 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_4viterbi_trees(struct __pyx_obj_5_
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   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":30
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":30
  *         """
  *         f_tree = unicode(hypergraph.ViterbiFTree(self.hg[0]).c_str(), 'utf8')
  *         e_tree = unicode(hypergraph.ViterbiETree(self.hg[0]).c_str(), 'utf8')             # <<<<<<<<<<<<<<
@@ -9272,7 +9272,7 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_4viterbi_trees(struct __pyx_obj_5_
   __pyx_v_e_tree = ((PyObject*)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":31
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":31
  *         f_tree = unicode(hypergraph.ViterbiFTree(self.hg[0]).c_str(), 'utf8')
  *         e_tree = unicode(hypergraph.ViterbiETree(self.hg[0]).c_str(), 'utf8')
  *         return (f_tree, e_tree)             # <<<<<<<<<<<<<<
@@ -9297,7 +9297,7 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_4viterbi_trees(struct __pyx_obj_5_
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-  __Pyx_AddTraceback("_cdec.Hypergraph.viterbi_trees", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.Hypergraph.viterbi_trees", __pyx_clineno, __pyx_lineno, __pyx_filename);
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@@ -9308,18 +9308,18 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_4viterbi_trees(struct __pyx_obj_5_
 }
 
 /* Python wrapper */
-static PyObject *__pyx_pw_5_cdec_10Hypergraph_7viterbi_features(PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *unused); /*proto*/
-static char __pyx_doc_5_cdec_10Hypergraph_6viterbi_features[] = "hg.viterbi_features() -> SparseVector with the features corresponding\n        to the best derivation in the hypergraph.";
-static PyObject *__pyx_pw_5_cdec_10Hypergraph_7viterbi_features(PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *unused) {
+static PyObject *__pyx_pw_4cdec_5_cdec_10Hypergraph_7viterbi_features(PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *unused); /*proto*/
+static char __pyx_doc_4cdec_5_cdec_10Hypergraph_6viterbi_features[] = "hg.viterbi_features() -> SparseVector with the features corresponding\n        to the best derivation in the hypergraph.";
+static PyObject *__pyx_pw_4cdec_5_cdec_10Hypergraph_7viterbi_features(PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *unused) {
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-  __pyx_r = __pyx_pf_5_cdec_10Hypergraph_6viterbi_features(((struct __pyx_obj_5_cdec_Hypergraph *)__pyx_v_self));
+  __pyx_r = __pyx_pf_4cdec_5_cdec_10Hypergraph_6viterbi_features(((struct __pyx_obj_4cdec_5_cdec_Hypergraph *)__pyx_v_self));
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-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":33
+/* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":33
  *         return (f_tree, e_tree)
  * 
  *     def viterbi_features(self):             # <<<<<<<<<<<<<<
@@ -9327,8 +9327,8 @@ static PyObject *__pyx_pw_5_cdec_10Hypergraph_7viterbi_features(PyObject *__pyx_
  *         to the best derivation in the hypergraph."""
  */
 
-static PyObject *__pyx_pf_5_cdec_10Hypergraph_6viterbi_features(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self) {
-  struct __pyx_obj_5_cdec_SparseVector *__pyx_v_fmap = 0;
+static PyObject *__pyx_pf_4cdec_5_cdec_10Hypergraph_6viterbi_features(struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_self) {
+  struct __pyx_obj_4cdec_5_cdec_SparseVector *__pyx_v_fmap = 0;
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":36
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":36
  *         """hg.viterbi_features() -> SparseVector with the features corresponding
  *         to the best derivation in the hypergraph."""
  *         cdef SparseVector fmap = SparseVector.__new__(SparseVector)             # <<<<<<<<<<<<<<
  *         fmap.vector = new FastSparseVector[weight_t](hypergraph.ViterbiFeatures(self.hg[0]))
  *         return fmap
  */
-  __pyx_t_1 = __pyx_tp_new_5_cdec_SparseVector(((PyTypeObject *)((PyObject*)__pyx_ptype_5_cdec_SparseVector)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 36; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __pyx_tp_new_4cdec_5_cdec_SparseVector(((PyTypeObject *)((PyObject*)__pyx_ptype_4cdec_5_cdec_SparseVector)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 36; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-  __pyx_v_fmap = ((struct __pyx_obj_5_cdec_SparseVector *)__pyx_t_1);
+  if (!(likely(__Pyx_TypeTest(__pyx_t_1, __pyx_ptype_4cdec_5_cdec_SparseVector)))) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 36; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_v_fmap = ((struct __pyx_obj_4cdec_5_cdec_SparseVector *)__pyx_t_1);
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":37
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":37
  *         to the best derivation in the hypergraph."""
  *         cdef SparseVector fmap = SparseVector.__new__(SparseVector)
  *         fmap.vector = new FastSparseVector[weight_t](hypergraph.ViterbiFeatures(self.hg[0]))             # <<<<<<<<<<<<<<
@@ -9359,7 +9359,7 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_6viterbi_features(struct __pyx_obj
  */
   __pyx_v_fmap->vector = new FastSparseVector<weight_t>(ViterbiFeatures((__pyx_v_self->hg[0])));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":38
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":38
  *         cdef SparseVector fmap = SparseVector.__new__(SparseVector)
  *         fmap.vector = new FastSparseVector[weight_t](hypergraph.ViterbiFeatures(self.hg[0]))
  *         return fmap             # <<<<<<<<<<<<<<
@@ -9375,7 +9375,7 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_6viterbi_features(struct __pyx_obj
   goto __pyx_L0;
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   __Pyx_XDECREF(__pyx_t_1);
-  __Pyx_AddTraceback("_cdec.Hypergraph.viterbi_features", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.Hypergraph.viterbi_features", __pyx_clineno, __pyx_lineno, __pyx_filename);
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@@ -9385,17 +9385,17 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_6viterbi_features(struct __pyx_obj
 }
 
 /* Python wrapper */
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-static PyObject *__pyx_pw_5_cdec_10Hypergraph_9viterbi_forest(PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *unused) {
+static PyObject *__pyx_pw_4cdec_5_cdec_10Hypergraph_9viterbi_forest(PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *unused); /*proto*/
+static PyObject *__pyx_pw_4cdec_5_cdec_10Hypergraph_9viterbi_forest(PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *unused) {
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-  __pyx_r = __pyx_pf_5_cdec_10Hypergraph_8viterbi_forest(((struct __pyx_obj_5_cdec_Hypergraph *)__pyx_v_self));
+  __pyx_r = __pyx_pf_4cdec_5_cdec_10Hypergraph_8viterbi_forest(((struct __pyx_obj_4cdec_5_cdec_Hypergraph *)__pyx_v_self));
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-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":40
+/* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":40
  *         return fmap
  * 
  *     def viterbi_forest(self):             # <<<<<<<<<<<<<<
@@ -9403,8 +9403,8 @@ static PyObject *__pyx_pw_5_cdec_10Hypergraph_9viterbi_forest(PyObject *__pyx_v_
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  */
 
-static PyObject *__pyx_pf_5_cdec_10Hypergraph_8viterbi_forest(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self) {
-  struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_hg = 0;
+static PyObject *__pyx_pf_4cdec_5_cdec_10Hypergraph_8viterbi_forest(struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_self) {
+  struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_hg = 0;
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
   PyObject *__pyx_t_1 = NULL;
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":41
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":41
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  *     def viterbi_forest(self):
  *         cdef Hypergraph hg = Hypergraph()             # <<<<<<<<<<<<<<
  *         hg.hg = new hypergraph.Hypergraph(self.hg[0].CreateViterbiHypergraph(NULL).get()[0])
  *         return hg
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-  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_5_cdec_Hypergraph)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 41; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_5_cdec_Hypergraph)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 41; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_v_hg = ((struct __pyx_obj_5_cdec_Hypergraph *)__pyx_t_1);
+  __pyx_v_hg = ((struct __pyx_obj_4cdec_5_cdec_Hypergraph *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":42
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":42
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@@ -9434,7 +9434,7 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_8viterbi_forest(struct __pyx_obj_5
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":43
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":43
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@@ -9450,7 +9450,7 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_8viterbi_forest(struct __pyx_obj_5
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   __Pyx_XDECREF(__pyx_t_1);
-  __Pyx_AddTraceback("_cdec.Hypergraph.viterbi_forest", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.Hypergraph.viterbi_forest", __pyx_clineno, __pyx_lineno, __pyx_filename);
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@@ -9460,18 +9460,18 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_8viterbi_forest(struct __pyx_obj_5
 }
 
 /* Python wrapper */
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-static PyObject *__pyx_pw_5_cdec_10Hypergraph_11viterbi_joshua(PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *unused) {
+static PyObject *__pyx_pw_4cdec_5_cdec_10Hypergraph_11viterbi_joshua(PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *unused); /*proto*/
+static char __pyx_doc_4cdec_5_cdec_10Hypergraph_10viterbi_joshua[] = "hg.viterbi_joshua() -> Joshua representation of the best derivation.";
+static PyObject *__pyx_pw_4cdec_5_cdec_10Hypergraph_11viterbi_joshua(PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *unused) {
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-  __pyx_r = __pyx_pf_5_cdec_10Hypergraph_10viterbi_joshua(((struct __pyx_obj_5_cdec_Hypergraph *)__pyx_v_self));
+  __pyx_r = __pyx_pf_4cdec_5_cdec_10Hypergraph_10viterbi_joshua(((struct __pyx_obj_4cdec_5_cdec_Hypergraph *)__pyx_v_self));
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-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":45
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  * 
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  */
 
-static PyObject *__pyx_pf_5_cdec_10Hypergraph_10viterbi_joshua(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self) {
+static PyObject *__pyx_pf_4cdec_5_cdec_10Hypergraph_10viterbi_joshua(struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_self) {
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":47
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":47
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  *         """hg.viterbi_joshua() -> Joshua representation of the best derivation."""
  *         return unicode(hypergraph.JoshuaVisualizationString(self.hg[0]).c_str(), 'utf8')             # <<<<<<<<<<<<<<
@@ -9519,28 +9519,28 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_10viterbi_joshua(struct __pyx_obj_
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-  __Pyx_AddTraceback("_cdec.Hypergraph.viterbi_joshua", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.Hypergraph.viterbi_joshua", __pyx_clineno, __pyx_lineno, __pyx_filename);
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 }
-static PyObject *__pyx_gb_5_cdec_10Hypergraph_14generator4(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
+static PyObject *__pyx_gb_4cdec_5_cdec_10Hypergraph_14generator4(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
 
 /* Python wrapper */
-static PyObject *__pyx_pw_5_cdec_10Hypergraph_13kbest(PyObject *__pyx_v_self, PyObject *__pyx_v_size); /*proto*/
-static char __pyx_doc_5_cdec_10Hypergraph_12kbest[] = "hg.kbest(size) -> List of k-best hypotheses in the hypergraph.";
-static PyObject *__pyx_pw_5_cdec_10Hypergraph_13kbest(PyObject *__pyx_v_self, PyObject *__pyx_v_size) {
+static PyObject *__pyx_pw_4cdec_5_cdec_10Hypergraph_13kbest(PyObject *__pyx_v_self, PyObject *__pyx_v_size); /*proto*/
+static char __pyx_doc_4cdec_5_cdec_10Hypergraph_12kbest[] = "hg.kbest(size) -> List of k-best hypotheses in the hypergraph.";
+static PyObject *__pyx_pw_4cdec_5_cdec_10Hypergraph_13kbest(PyObject *__pyx_v_self, PyObject *__pyx_v_size) {
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+  __pyx_r = __pyx_pf_4cdec_5_cdec_10Hypergraph_12kbest(((struct __pyx_obj_4cdec_5_cdec_Hypergraph *)__pyx_v_self), ((PyObject *)__pyx_v_size));
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-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":49
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  *         return unicode(hypergraph.JoshuaVisualizationString(self.hg[0]).c_str(), 'utf8')
  * 
  *     def kbest(self, size):             # <<<<<<<<<<<<<<
@@ -9548,15 +9548,15 @@ static PyObject *__pyx_pw_5_cdec_10Hypergraph_13kbest(PyObject *__pyx_v_self, Py
  *         cdef kbest.KBestDerivations[vector[WordID], kbest.ESentenceTraversal]* derivations = new kbest.KBestDerivations[vector[WordID], kbest.ESentenceTraversal](self.hg[0], size)
  */
 
-static PyObject *__pyx_pf_5_cdec_10Hypergraph_12kbest(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self, PyObject *__pyx_v_size) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_8_kbest *__pyx_cur_scope;
+static PyObject *__pyx_pf_4cdec_5_cdec_10Hypergraph_12kbest(struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_self, PyObject *__pyx_v_size) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_8_kbest *__pyx_cur_scope;
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+  __pyx_cur_scope = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_8_kbest *)__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_8_kbest(__pyx_ptype_4cdec_5_cdec___pyx_scope_struct_8_kbest, __pyx_empty_tuple, NULL);
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@@ -9569,7 +9569,7 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_12kbest(struct __pyx_obj_5_cdec_Hy
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   __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_size);
   {
-    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_5_cdec_10Hypergraph_14generator4, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 49; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_4cdec_5_cdec_10Hypergraph_14generator4, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 49; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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   __pyx_r = Py_None; __Pyx_INCREF(Py_None);
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   __pyx_L1_error:;
-  __Pyx_AddTraceback("_cdec.Hypergraph.kbest", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.Hypergraph.kbest", __pyx_clineno, __pyx_lineno, __pyx_filename);
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@@ -9587,9 +9587,9 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_12kbest(struct __pyx_obj_5_cdec_Hy
   return __pyx_r;
 }
 
-static PyObject *__pyx_gb_5_cdec_10Hypergraph_14generator4(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
+static PyObject *__pyx_gb_4cdec_5_cdec_10Hypergraph_14generator4(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
 {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_8_kbest *__pyx_cur_scope = ((struct __pyx_obj_5_cdec___pyx_scope_struct_8_kbest *)__pyx_generator->closure);
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_8_kbest *__pyx_cur_scope = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_8_kbest *)__pyx_generator->closure);
   PyObject *__pyx_r = NULL;
   unsigned int __pyx_t_1;
   long __pyx_t_2;
@@ -9611,7 +9611,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_14generator4(__pyx_GeneratorObject
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   if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 49; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":51
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":51
  *     def kbest(self, size):
  *         """hg.kbest(size) -> List of k-best hypotheses in the hypergraph."""
  *         cdef kbest.KBestDerivations[vector[WordID], kbest.ESentenceTraversal]* derivations = new kbest.KBestDerivations[vector[WordID], kbest.ESentenceTraversal](self.hg[0], size)             # <<<<<<<<<<<<<<
@@ -9621,7 +9621,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_14generator4(__pyx_GeneratorObject
   __pyx_t_1 = __Pyx_PyInt_AsUnsignedInt(__pyx_cur_scope->__pyx_v_size); if (unlikely((__pyx_t_1 == (unsigned int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 51; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":54
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":54
  *         cdef kbest.KBestDerivations[vector[WordID], kbest.ESentenceTraversal].Derivation* derivation
  *         cdef unsigned k
  *         try:             # <<<<<<<<<<<<<<
@@ -9630,7 +9630,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_14generator4(__pyx_GeneratorObject
  */
   /*try:*/ {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":55
+    /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":55
  *         cdef unsigned k
  *         try:
  *             for k in range(size):             # <<<<<<<<<<<<<<
@@ -9641,7 +9641,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_14generator4(__pyx_GeneratorObject
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       __pyx_cur_scope->__pyx_v_k = __pyx_t_1;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":56
+      /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":56
  *         try:
  *             for k in range(size):
  *                 derivation = derivations.LazyKthBest(self.hg.nodes_.size() - 1, k)             # <<<<<<<<<<<<<<
@@ -9650,7 +9650,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_14generator4(__pyx_GeneratorObject
  */
       __pyx_cur_scope->__pyx_v_derivation = __pyx_cur_scope->__pyx_v_derivations->LazyKthBest((__pyx_cur_scope->__pyx_v_self->hg->nodes_.size() - 1), __pyx_cur_scope->__pyx_v_k);
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":57
+      /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":57
  *             for k in range(size):
  *                 derivation = derivations.LazyKthBest(self.hg.nodes_.size() - 1, k)
  *                 if not derivation: break             # <<<<<<<<<<<<<<
@@ -9664,7 +9664,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_14generator4(__pyx_GeneratorObject
       }
       __pyx_L9:;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":58
+      /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":58
  *                 derivation = derivations.LazyKthBest(self.hg.nodes_.size() - 1, k)
  *                 if not derivation: break
  *                 yield unicode(GetString(derivation._yield).c_str(), 'utf8')             # <<<<<<<<<<<<<<
@@ -9701,7 +9701,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_14generator4(__pyx_GeneratorObject
     __pyx_L8_break:;
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":60
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":60
  *                 yield unicode(GetString(derivation._yield).c_str(), 'utf8')
  *         finally:
  *             del derivations             # <<<<<<<<<<<<<<
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-static PyObject *__pyx_gb_5_cdec_10Hypergraph_17generator5(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
+static PyObject *__pyx_gb_4cdec_5_cdec_10Hypergraph_17generator5(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
 
 /* Python wrapper */
-static PyObject *__pyx_pw_5_cdec_10Hypergraph_16kbest_trees(PyObject *__pyx_v_self, PyObject *__pyx_v_size); /*proto*/
-static char __pyx_doc_5_cdec_10Hypergraph_15kbest_trees[] = "hg.kbest_trees(size) -> List of k-best trees in the hypergraph.";
-static PyObject *__pyx_pw_5_cdec_10Hypergraph_16kbest_trees(PyObject *__pyx_v_self, PyObject *__pyx_v_size) {
+static PyObject *__pyx_pw_4cdec_5_cdec_10Hypergraph_16kbest_trees(PyObject *__pyx_v_self, PyObject *__pyx_v_size); /*proto*/
+static char __pyx_doc_4cdec_5_cdec_10Hypergraph_15kbest_trees[] = "hg.kbest_trees(size) -> List of k-best trees in the hypergraph.";
+static PyObject *__pyx_pw_4cdec_5_cdec_10Hypergraph_16kbest_trees(PyObject *__pyx_v_self, PyObject *__pyx_v_size) {
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+  __pyx_r = __pyx_pf_4cdec_5_cdec_10Hypergraph_15kbest_trees(((struct __pyx_obj_4cdec_5_cdec_Hypergraph *)__pyx_v_self), ((PyObject *)__pyx_v_size));
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-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":62
+/* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":62
  *             del derivations
  * 
  *     def kbest_trees(self, size):             # <<<<<<<<<<<<<<
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  *         cdef kbest.KBestDerivations[vector[WordID], kbest.FTreeTraversal]* f_derivations = new kbest.KBestDerivations[vector[WordID], kbest.FTreeTraversal](self.hg[0], size)
  */
 
-static PyObject *__pyx_pf_5_cdec_10Hypergraph_15kbest_trees(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self, PyObject *__pyx_v_size) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_9_kbest_trees *__pyx_cur_scope;
+static PyObject *__pyx_pf_4cdec_5_cdec_10Hypergraph_15kbest_trees(struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_self, PyObject *__pyx_v_size) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees *__pyx_cur_scope;
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+  __pyx_cur_scope = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees *)__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees(__pyx_ptype_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees, __pyx_empty_tuple, NULL);
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-    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_5_cdec_10Hypergraph_17generator5, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 62; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_4cdec_5_cdec_10Hypergraph_17generator5, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 62; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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   __pyx_L1_error:;
-  __Pyx_AddTraceback("_cdec.Hypergraph.kbest_trees", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.Hypergraph.kbest_trees", __pyx_clineno, __pyx_lineno, __pyx_filename);
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@@ -9809,9 +9809,9 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_15kbest_trees(struct __pyx_obj_5_c
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 }
 
-static PyObject *__pyx_gb_5_cdec_10Hypergraph_17generator5(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
+static PyObject *__pyx_gb_4cdec_5_cdec_10Hypergraph_17generator5(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
 {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_9_kbest_trees *__pyx_cur_scope = ((struct __pyx_obj_5_cdec___pyx_scope_struct_9_kbest_trees *)__pyx_generator->closure);
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees *__pyx_cur_scope = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees *)__pyx_generator->closure);
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@@ -9835,7 +9835,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_17generator5(__pyx_GeneratorObject
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":64
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":64
  *     def kbest_trees(self, size):
  *         """hg.kbest_trees(size) -> List of k-best trees in the hypergraph."""
  *         cdef kbest.KBestDerivations[vector[WordID], kbest.FTreeTraversal]* f_derivations = new kbest.KBestDerivations[vector[WordID], kbest.FTreeTraversal](self.hg[0], size)             # <<<<<<<<<<<<<<
@@ -9845,7 +9845,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_17generator5(__pyx_GeneratorObject
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":66
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":66
  *         cdef kbest.KBestDerivations[vector[WordID], kbest.FTreeTraversal]* f_derivations = new kbest.KBestDerivations[vector[WordID], kbest.FTreeTraversal](self.hg[0], size)
  *         cdef kbest.KBestDerivations[vector[WordID], kbest.FTreeTraversal].Derivation* f_derivation
  *         cdef kbest.KBestDerivations[vector[WordID], kbest.ETreeTraversal]* e_derivations = new kbest.KBestDerivations[vector[WordID], kbest.ETreeTraversal](self.hg[0], size)             # <<<<<<<<<<<<<<
@@ -9855,7 +9855,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_17generator5(__pyx_GeneratorObject
   __pyx_t_1 = __Pyx_PyInt_AsUnsignedInt(__pyx_cur_scope->__pyx_v_size); if (unlikely((__pyx_t_1 == (unsigned int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 66; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":69
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":69
  *         cdef kbest.KBestDerivations[vector[WordID], kbest.ETreeTraversal].Derivation* e_derivation
  *         cdef unsigned k
  *         try:             # <<<<<<<<<<<<<<
@@ -9864,7 +9864,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_17generator5(__pyx_GeneratorObject
  */
   /*try:*/ {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":70
+    /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":70
  *         cdef unsigned k
  *         try:
  *             for k in range(size):             # <<<<<<<<<<<<<<
@@ -9875,7 +9875,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_17generator5(__pyx_GeneratorObject
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       __pyx_cur_scope->__pyx_v_k = __pyx_t_1;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":71
+      /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":71
  *         try:
  *             for k in range(size):
  *                 f_derivation = f_derivations.LazyKthBest(self.hg.nodes_.size() - 1, k)             # <<<<<<<<<<<<<<
@@ -9884,7 +9884,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_17generator5(__pyx_GeneratorObject
  */
       __pyx_cur_scope->__pyx_v_f_derivation = __pyx_cur_scope->__pyx_v_f_derivations->LazyKthBest((__pyx_cur_scope->__pyx_v_self->hg->nodes_.size() - 1), __pyx_cur_scope->__pyx_v_k);
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":72
+      /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":72
  *             for k in range(size):
  *                 f_derivation = f_derivations.LazyKthBest(self.hg.nodes_.size() - 1, k)
  *                 e_derivation = e_derivations.LazyKthBest(self.hg.nodes_.size() - 1, k)             # <<<<<<<<<<<<<<
@@ -9893,7 +9893,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_17generator5(__pyx_GeneratorObject
  */
       __pyx_cur_scope->__pyx_v_e_derivation = __pyx_cur_scope->__pyx_v_e_derivations->LazyKthBest((__pyx_cur_scope->__pyx_v_self->hg->nodes_.size() - 1), __pyx_cur_scope->__pyx_v_k);
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":73
+      /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":73
  *                 f_derivation = f_derivations.LazyKthBest(self.hg.nodes_.size() - 1, k)
  *                 e_derivation = e_derivations.LazyKthBest(self.hg.nodes_.size() - 1, k)
  *                 if not f_derivation or not e_derivation: break             # <<<<<<<<<<<<<<
@@ -9913,7 +9913,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_17generator5(__pyx_GeneratorObject
       }
       __pyx_L9:;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":74
+      /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":74
  *                 e_derivation = e_derivations.LazyKthBest(self.hg.nodes_.size() - 1, k)
  *                 if not f_derivation or not e_derivation: break
  *                 f_tree = unicode(GetString(f_derivation._yield).c_str(), 'utf8')             # <<<<<<<<<<<<<<
@@ -9939,7 +9939,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_17generator5(__pyx_GeneratorObject
       __pyx_cur_scope->__pyx_v_f_tree = ((PyObject*)__pyx_t_6);
       __pyx_t_6 = 0;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":75
+      /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":75
  *                 if not f_derivation or not e_derivation: break
  *                 f_tree = unicode(GetString(f_derivation._yield).c_str(), 'utf8')
  *                 e_tree = unicode(GetString(e_derivation._yield).c_str(), 'utf8')             # <<<<<<<<<<<<<<
@@ -9965,7 +9965,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_17generator5(__pyx_GeneratorObject
       __pyx_cur_scope->__pyx_v_e_tree = ((PyObject*)__pyx_t_6);
       __pyx_t_6 = 0;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":76
+      /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":76
  *                 f_tree = unicode(GetString(f_derivation._yield).c_str(), 'utf8')
  *                 e_tree = unicode(GetString(e_derivation._yield).c_str(), 'utf8')
  *                 yield (f_tree, e_tree)             # <<<<<<<<<<<<<<
@@ -9997,7 +9997,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_17generator5(__pyx_GeneratorObject
     __pyx_L8_break:;
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":78
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":78
  *                 yield (f_tree, e_tree)
  *         finally:
  *             del f_derivations             # <<<<<<<<<<<<<<
@@ -10021,7 +10021,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_17generator5(__pyx_GeneratorObject
     __pyx_L6:;
     delete __pyx_cur_scope->__pyx_v_f_derivations;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":79
+    /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":79
  *         finally:
  *             del f_derivations
  *             del e_derivations             # <<<<<<<<<<<<<<
@@ -10053,21 +10053,21 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_17generator5(__pyx_GeneratorObject
   __Pyx_RefNannyFinishContext();
   return NULL;
 }
-static PyObject *__pyx_gb_5_cdec_10Hypergraph_20generator6(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
+static PyObject *__pyx_gb_4cdec_5_cdec_10Hypergraph_20generator6(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
 
 /* Python wrapper */
-static PyObject *__pyx_pw_5_cdec_10Hypergraph_19kbest_features(PyObject *__pyx_v_self, PyObject *__pyx_v_size); /*proto*/
-static char __pyx_doc_5_cdec_10Hypergraph_18kbest_features[] = "hg.kbest_trees(size) -> List of k-best feature vectors in the hypergraph.";
-static PyObject *__pyx_pw_5_cdec_10Hypergraph_19kbest_features(PyObject *__pyx_v_self, PyObject *__pyx_v_size) {
+static PyObject *__pyx_pw_4cdec_5_cdec_10Hypergraph_19kbest_features(PyObject *__pyx_v_self, PyObject *__pyx_v_size); /*proto*/
+static char __pyx_doc_4cdec_5_cdec_10Hypergraph_18kbest_features[] = "hg.kbest_trees(size) -> List of k-best feature vectors in the hypergraph.";
+static PyObject *__pyx_pw_4cdec_5_cdec_10Hypergraph_19kbest_features(PyObject *__pyx_v_self, PyObject *__pyx_v_size) {
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("kbest_features (wrapper)", 0);
-  __pyx_r = __pyx_pf_5_cdec_10Hypergraph_18kbest_features(((struct __pyx_obj_5_cdec_Hypergraph *)__pyx_v_self), ((PyObject *)__pyx_v_size));
+  __pyx_r = __pyx_pf_4cdec_5_cdec_10Hypergraph_18kbest_features(((struct __pyx_obj_4cdec_5_cdec_Hypergraph *)__pyx_v_self), ((PyObject *)__pyx_v_size));
   __Pyx_RefNannyFinishContext();
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":81
+/* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":81
  *             del e_derivations
  * 
  *     def kbest_features(self, size):             # <<<<<<<<<<<<<<
@@ -10075,15 +10075,15 @@ static PyObject *__pyx_pw_5_cdec_10Hypergraph_19kbest_features(PyObject *__pyx_v
  *         cdef kbest.KBestDerivations[FastSparseVector[weight_t], kbest.FeatureVectorTraversal]* derivations = new kbest.KBestDerivations[FastSparseVector[weight_t], kbest.FeatureVectorTraversal](self.hg[0], size)
  */
 
-static PyObject *__pyx_pf_5_cdec_10Hypergraph_18kbest_features(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self, PyObject *__pyx_v_size) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_10_kbest_features *__pyx_cur_scope;
+static PyObject *__pyx_pf_4cdec_5_cdec_10Hypergraph_18kbest_features(struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_self, PyObject *__pyx_v_size) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_10_kbest_features *__pyx_cur_scope;
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
   int __pyx_lineno = 0;
   const char *__pyx_filename = NULL;
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("kbest_features", 0);
-  __pyx_cur_scope = (struct __pyx_obj_5_cdec___pyx_scope_struct_10_kbest_features *)__pyx_tp_new_5_cdec___pyx_scope_struct_10_kbest_features(__pyx_ptype_5_cdec___pyx_scope_struct_10_kbest_features, __pyx_empty_tuple, NULL);
+  __pyx_cur_scope = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_10_kbest_features *)__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_10_kbest_features(__pyx_ptype_4cdec_5_cdec___pyx_scope_struct_10_kbest_features, __pyx_empty_tuple, NULL);
   if (unlikely(!__pyx_cur_scope)) {
     __Pyx_RefNannyFinishContext();
     return NULL;
@@ -10096,7 +10096,7 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_18kbest_features(struct __pyx_obj_
   __Pyx_INCREF(__pyx_cur_scope->__pyx_v_size);
   __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_size);
   {
-    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_5_cdec_10Hypergraph_20generator6, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 81; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_4cdec_5_cdec_10Hypergraph_20generator6, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 81; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_cur_scope);
     __Pyx_RefNannyFinishContext();
     return (PyObject *) gen;
@@ -10105,7 +10105,7 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_18kbest_features(struct __pyx_obj_
   __pyx_r = Py_None; __Pyx_INCREF(Py_None);
   goto __pyx_L0;
   __pyx_L1_error:;
-  __Pyx_AddTraceback("_cdec.Hypergraph.kbest_features", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.Hypergraph.kbest_features", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __pyx_r = NULL;
   __pyx_L0:;
   __Pyx_DECREF(((PyObject *)__pyx_cur_scope));
@@ -10114,9 +10114,9 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_18kbest_features(struct __pyx_obj_
   return __pyx_r;
 }
 
-static PyObject *__pyx_gb_5_cdec_10Hypergraph_20generator6(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
+static PyObject *__pyx_gb_4cdec_5_cdec_10Hypergraph_20generator6(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
 {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_10_kbest_features *__pyx_cur_scope = ((struct __pyx_obj_5_cdec___pyx_scope_struct_10_kbest_features *)__pyx_generator->closure);
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_10_kbest_features *__pyx_cur_scope = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_10_kbest_features *)__pyx_generator->closure);
   PyObject *__pyx_r = NULL;
   unsigned int __pyx_t_1;
   long __pyx_t_2;
@@ -10137,7 +10137,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_20generator6(__pyx_GeneratorObject
   __pyx_L3_first_run:;
   if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 81; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":83
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":83
  *     def kbest_features(self, size):
  *         """hg.kbest_trees(size) -> List of k-best feature vectors in the hypergraph."""
  *         cdef kbest.KBestDerivations[FastSparseVector[weight_t], kbest.FeatureVectorTraversal]* derivations = new kbest.KBestDerivations[FastSparseVector[weight_t], kbest.FeatureVectorTraversal](self.hg[0], size)             # <<<<<<<<<<<<<<
@@ -10147,7 +10147,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_20generator6(__pyx_GeneratorObject
   __pyx_t_1 = __Pyx_PyInt_AsUnsignedInt(__pyx_cur_scope->__pyx_v_size); if (unlikely((__pyx_t_1 == (unsigned int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 83; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_cur_scope->__pyx_v_derivations = new KBest::KBestDerivations<FastSparseVector<weight_t>,FeatureVectorTraversal>((__pyx_cur_scope->__pyx_v_self->hg[0]), __pyx_t_1);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":87
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":87
  *         cdef SparseVector fmap
  *         cdef unsigned k
  *         try:             # <<<<<<<<<<<<<<
@@ -10156,7 +10156,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_20generator6(__pyx_GeneratorObject
  */
   /*try:*/ {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":88
+    /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":88
  *         cdef unsigned k
  *         try:
  *             for k in range(size):             # <<<<<<<<<<<<<<
@@ -10167,7 +10167,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_20generator6(__pyx_GeneratorObject
     for (__pyx_t_1 = 0; __pyx_t_1 < __pyx_t_2; __pyx_t_1+=1) {
       __pyx_cur_scope->__pyx_v_k = __pyx_t_1;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":89
+      /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":89
  *         try:
  *             for k in range(size):
  *                 derivation = derivations.LazyKthBest(self.hg.nodes_.size() - 1, k)             # <<<<<<<<<<<<<<
@@ -10176,7 +10176,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_20generator6(__pyx_GeneratorObject
  */
       __pyx_cur_scope->__pyx_v_derivation = __pyx_cur_scope->__pyx_v_derivations->LazyKthBest((__pyx_cur_scope->__pyx_v_self->hg->nodes_.size() - 1), __pyx_cur_scope->__pyx_v_k);
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":90
+      /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":90
  *             for k in range(size):
  *                 derivation = derivations.LazyKthBest(self.hg.nodes_.size() - 1, k)
  *                 if not derivation: break             # <<<<<<<<<<<<<<
@@ -10190,23 +10190,23 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_20generator6(__pyx_GeneratorObject
       }
       __pyx_L9:;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":91
+      /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":91
  *                 derivation = derivations.LazyKthBest(self.hg.nodes_.size() - 1, k)
  *                 if not derivation: break
  *                 fmap = SparseVector.__new__(SparseVector)             # <<<<<<<<<<<<<<
  *                 fmap.vector = new FastSparseVector[weight_t](derivation._yield)
  *                 yield fmap
  */
-      __pyx_t_4 = __pyx_tp_new_5_cdec_SparseVector(((PyTypeObject *)((PyObject*)__pyx_ptype_5_cdec_SparseVector)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 91; __pyx_clineno = __LINE__; goto __pyx_L5;}
+      __pyx_t_4 = __pyx_tp_new_4cdec_5_cdec_SparseVector(((PyTypeObject *)((PyObject*)__pyx_ptype_4cdec_5_cdec_SparseVector)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 91; __pyx_clineno = __LINE__; goto __pyx_L5;}
       __Pyx_GOTREF(__pyx_t_4);
-      if (!(likely(__Pyx_TypeTest(__pyx_t_4, __pyx_ptype_5_cdec_SparseVector)))) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 91; __pyx_clineno = __LINE__; goto __pyx_L5;}
+      if (!(likely(__Pyx_TypeTest(__pyx_t_4, __pyx_ptype_4cdec_5_cdec_SparseVector)))) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 91; __pyx_clineno = __LINE__; goto __pyx_L5;}
       __Pyx_XGOTREF(((PyObject *)__pyx_cur_scope->__pyx_v_fmap));
       __Pyx_XDECREF(((PyObject *)__pyx_cur_scope->__pyx_v_fmap));
       __Pyx_GIVEREF(__pyx_t_4);
-      __pyx_cur_scope->__pyx_v_fmap = ((struct __pyx_obj_5_cdec_SparseVector *)__pyx_t_4);
+      __pyx_cur_scope->__pyx_v_fmap = ((struct __pyx_obj_4cdec_5_cdec_SparseVector *)__pyx_t_4);
       __pyx_t_4 = 0;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":92
+      /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":92
  *                 if not derivation: break
  *                 fmap = SparseVector.__new__(SparseVector)
  *                 fmap.vector = new FastSparseVector[weight_t](derivation._yield)             # <<<<<<<<<<<<<<
@@ -10215,7 +10215,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_20generator6(__pyx_GeneratorObject
  */
       __pyx_cur_scope->__pyx_v_fmap->vector = new FastSparseVector<weight_t>(__pyx_cur_scope->__pyx_v_derivation->yield);
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":93
+      /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":93
  *                 fmap = SparseVector.__new__(SparseVector)
  *                 fmap.vector = new FastSparseVector[weight_t](derivation._yield)
  *                 yield fmap             # <<<<<<<<<<<<<<
@@ -10239,7 +10239,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_20generator6(__pyx_GeneratorObject
     __pyx_L8_break:;
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":95
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":95
  *                 yield fmap
  *         finally:
  *             del derivations             # <<<<<<<<<<<<<<
@@ -10284,12 +10284,12 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_20generator6(__pyx_GeneratorObject
   __Pyx_RefNannyFinishContext();
   return NULL;
 }
-static PyObject *__pyx_gb_5_cdec_10Hypergraph_23generator7(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
+static PyObject *__pyx_gb_4cdec_5_cdec_10Hypergraph_23generator7(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
 
 /* Python wrapper */
-static PyObject *__pyx_pw_5_cdec_10Hypergraph_22sample(PyObject *__pyx_v_self, PyObject *__pyx_arg_n); /*proto*/
-static char __pyx_doc_5_cdec_10Hypergraph_21sample[] = "hg.sample(n) -> Sample of n hypotheses from the hypergraph.";
-static PyObject *__pyx_pw_5_cdec_10Hypergraph_22sample(PyObject *__pyx_v_self, PyObject *__pyx_arg_n) {
+static PyObject *__pyx_pw_4cdec_5_cdec_10Hypergraph_22sample(PyObject *__pyx_v_self, PyObject *__pyx_arg_n); /*proto*/
+static char __pyx_doc_4cdec_5_cdec_10Hypergraph_21sample[] = "hg.sample(n) -> Sample of n hypotheses from the hypergraph.";
+static PyObject *__pyx_pw_4cdec_5_cdec_10Hypergraph_22sample(PyObject *__pyx_v_self, PyObject *__pyx_arg_n) {
   unsigned int __pyx_v_n;
   int __pyx_lineno = 0;
   const char *__pyx_filename = NULL;
@@ -10302,16 +10302,16 @@ static PyObject *__pyx_pw_5_cdec_10Hypergraph_22sample(PyObject *__pyx_v_self, P
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L3_error:;
-  __Pyx_AddTraceback("_cdec.Hypergraph.sample", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.Hypergraph.sample", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
   return NULL;
   __pyx_L4_argument_unpacking_done:;
-  __pyx_r = __pyx_pf_5_cdec_10Hypergraph_21sample(((struct __pyx_obj_5_cdec_Hypergraph *)__pyx_v_self), ((unsigned int)__pyx_v_n));
+  __pyx_r = __pyx_pf_4cdec_5_cdec_10Hypergraph_21sample(((struct __pyx_obj_4cdec_5_cdec_Hypergraph *)__pyx_v_self), ((unsigned int)__pyx_v_n));
   __Pyx_RefNannyFinishContext();
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":97
+/* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":97
  *             del derivations
  * 
  *     def sample(self, unsigned n):             # <<<<<<<<<<<<<<
@@ -10319,15 +10319,15 @@ static PyObject *__pyx_pw_5_cdec_10Hypergraph_22sample(PyObject *__pyx_v_self, P
  *         cdef vector[hypergraph.Hypothesis]* hypos = new vector[hypergraph.Hypothesis]()
  */
 
-static PyObject *__pyx_pf_5_cdec_10Hypergraph_21sample(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self, unsigned int __pyx_v_n) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_11_sample *__pyx_cur_scope;
+static PyObject *__pyx_pf_4cdec_5_cdec_10Hypergraph_21sample(struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_self, unsigned int __pyx_v_n) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_11_sample *__pyx_cur_scope;
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
   int __pyx_lineno = 0;
   const char *__pyx_filename = NULL;
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("sample", 0);
-  __pyx_cur_scope = (struct __pyx_obj_5_cdec___pyx_scope_struct_11_sample *)__pyx_tp_new_5_cdec___pyx_scope_struct_11_sample(__pyx_ptype_5_cdec___pyx_scope_struct_11_sample, __pyx_empty_tuple, NULL);
+  __pyx_cur_scope = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_11_sample *)__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_11_sample(__pyx_ptype_4cdec_5_cdec___pyx_scope_struct_11_sample, __pyx_empty_tuple, NULL);
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     __Pyx_RefNannyFinishContext();
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@@ -10338,7 +10338,7 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_21sample(struct __pyx_obj_5_cdec_H
   __Pyx_GIVEREF((PyObject *)__pyx_cur_scope->__pyx_v_self);
   __pyx_cur_scope->__pyx_v_n = __pyx_v_n;
   {
-    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_5_cdec_10Hypergraph_23generator7, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 97; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_4cdec_5_cdec_10Hypergraph_23generator7, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 97; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_cur_scope);
     __Pyx_RefNannyFinishContext();
     return (PyObject *) gen;
@@ -10347,7 +10347,7 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_21sample(struct __pyx_obj_5_cdec_H
   __pyx_r = Py_None; __Pyx_INCREF(Py_None);
   goto __pyx_L0;
   __pyx_L1_error:;
-  __Pyx_AddTraceback("_cdec.Hypergraph.sample", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.Hypergraph.sample", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __pyx_r = NULL;
   __pyx_L0:;
   __Pyx_DECREF(((PyObject *)__pyx_cur_scope));
@@ -10356,9 +10356,9 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_21sample(struct __pyx_obj_5_cdec_H
   return __pyx_r;
 }
 
-static PyObject *__pyx_gb_5_cdec_10Hypergraph_23generator7(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
+static PyObject *__pyx_gb_4cdec_5_cdec_10Hypergraph_23generator7(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
 {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_11_sample *__pyx_cur_scope = ((struct __pyx_obj_5_cdec___pyx_scope_struct_11_sample *)__pyx_generator->closure);
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_11_sample *__pyx_cur_scope = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_11_sample *)__pyx_generator->closure);
   PyObject *__pyx_r = NULL;
   std::vector<HypergraphSampler::Hypothesis> *__pyx_t_1;
   size_t __pyx_t_2;
@@ -10380,7 +10380,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_23generator7(__pyx_GeneratorObject
   __pyx_L3_first_run:;
   if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 97; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":99
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":99
  *     def sample(self, unsigned n):
  *         """hg.sample(n) -> Sample of n hypotheses from the hypergraph."""
  *         cdef vector[hypergraph.Hypothesis]* hypos = new vector[hypergraph.Hypothesis]()             # <<<<<<<<<<<<<<
@@ -10395,16 +10395,16 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_23generator7(__pyx_GeneratorObject
   }
   __pyx_cur_scope->__pyx_v_hypos = __pyx_t_1;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":100
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":100
  *         """hg.sample(n) -> Sample of n hypotheses from the hypergraph."""
  *         cdef vector[hypergraph.Hypothesis]* hypos = new vector[hypergraph.Hypothesis]()
  *         hypergraph.sample_hypotheses(self.hg[0], n, self._rng(), hypos)             # <<<<<<<<<<<<<<
  *         cdef unsigned k
  *         try:
  */
-  HypergraphSampler::sample_hypotheses((__pyx_cur_scope->__pyx_v_self->hg[0]), __pyx_cur_scope->__pyx_v_n, ((struct __pyx_vtabstruct_5_cdec_Hypergraph *)__pyx_cur_scope->__pyx_v_self->__pyx_vtab)->_rng(__pyx_cur_scope->__pyx_v_self), __pyx_cur_scope->__pyx_v_hypos);
+  HypergraphSampler::sample_hypotheses((__pyx_cur_scope->__pyx_v_self->hg[0]), __pyx_cur_scope->__pyx_v_n, ((struct __pyx_vtabstruct_4cdec_5_cdec_Hypergraph *)__pyx_cur_scope->__pyx_v_self->__pyx_vtab)->_rng(__pyx_cur_scope->__pyx_v_self), __pyx_cur_scope->__pyx_v_hypos);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":102
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":102
  *         hypergraph.sample_hypotheses(self.hg[0], n, self._rng(), hypos)
  *         cdef unsigned k
  *         try:             # <<<<<<<<<<<<<<
@@ -10413,7 +10413,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_23generator7(__pyx_GeneratorObject
  */
   /*try:*/ {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":103
+    /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":103
  *         cdef unsigned k
  *         try:
  *             for k in range(hypos.size()):             # <<<<<<<<<<<<<<
@@ -10424,7 +10424,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_23generator7(__pyx_GeneratorObject
     for (__pyx_t_3 = 0; __pyx_t_3 < __pyx_t_2; __pyx_t_3+=1) {
       __pyx_cur_scope->__pyx_v_k = __pyx_t_3;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":104
+      /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":104
  *         try:
  *             for k in range(hypos.size()):
  *                 yield unicode(GetString(hypos[0][k].words).c_str(), 'utf8')             # <<<<<<<<<<<<<<
@@ -10460,7 +10460,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_23generator7(__pyx_GeneratorObject
     }
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":106
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":106
  *                 yield unicode(GetString(hypos[0][k].words).c_str(), 'utf8')
  *         finally:
  *             del hypos             # <<<<<<<<<<<<<<
@@ -10507,12 +10507,12 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_23generator7(__pyx_GeneratorObject
   __Pyx_RefNannyFinishContext();
   return NULL;
 }
-static PyObject *__pyx_gb_5_cdec_10Hypergraph_26generator8(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
+static PyObject *__pyx_gb_4cdec_5_cdec_10Hypergraph_26generator8(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
 
 /* Python wrapper */
-static PyObject *__pyx_pw_5_cdec_10Hypergraph_25sample_trees(PyObject *__pyx_v_self, PyObject *__pyx_arg_n); /*proto*/
-static char __pyx_doc_5_cdec_10Hypergraph_24sample_trees[] = "hg.sample_trees(n) -> Sample of n trees from the hypergraph.";
-static PyObject *__pyx_pw_5_cdec_10Hypergraph_25sample_trees(PyObject *__pyx_v_self, PyObject *__pyx_arg_n) {
+static PyObject *__pyx_pw_4cdec_5_cdec_10Hypergraph_25sample_trees(PyObject *__pyx_v_self, PyObject *__pyx_arg_n); /*proto*/
+static char __pyx_doc_4cdec_5_cdec_10Hypergraph_24sample_trees[] = "hg.sample_trees(n) -> Sample of n trees from the hypergraph.";
+static PyObject *__pyx_pw_4cdec_5_cdec_10Hypergraph_25sample_trees(PyObject *__pyx_v_self, PyObject *__pyx_arg_n) {
   unsigned int __pyx_v_n;
   int __pyx_lineno = 0;
   const char *__pyx_filename = NULL;
@@ -10525,16 +10525,16 @@ static PyObject *__pyx_pw_5_cdec_10Hypergraph_25sample_trees(PyObject *__pyx_v_s
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L3_error:;
-  __Pyx_AddTraceback("_cdec.Hypergraph.sample_trees", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.Hypergraph.sample_trees", __pyx_clineno, __pyx_lineno, __pyx_filename);
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   return NULL;
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-  __pyx_r = __pyx_pf_5_cdec_10Hypergraph_24sample_trees(((struct __pyx_obj_5_cdec_Hypergraph *)__pyx_v_self), ((unsigned int)__pyx_v_n));
+  __pyx_r = __pyx_pf_4cdec_5_cdec_10Hypergraph_24sample_trees(((struct __pyx_obj_4cdec_5_cdec_Hypergraph *)__pyx_v_self), ((unsigned int)__pyx_v_n));
   __Pyx_RefNannyFinishContext();
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":108
+/* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":108
  *             del hypos
  * 
  *     def sample_trees(self, unsigned n):             # <<<<<<<<<<<<<<
@@ -10542,15 +10542,15 @@ static PyObject *__pyx_pw_5_cdec_10Hypergraph_25sample_trees(PyObject *__pyx_v_s
  *        cdef vector[string]* trees = new vector[string]()
  */
 
-static PyObject *__pyx_pf_5_cdec_10Hypergraph_24sample_trees(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self, unsigned int __pyx_v_n) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_12_sample_trees *__pyx_cur_scope;
+static PyObject *__pyx_pf_4cdec_5_cdec_10Hypergraph_24sample_trees(struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_self, unsigned int __pyx_v_n) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_12_sample_trees *__pyx_cur_scope;
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
   int __pyx_lineno = 0;
   const char *__pyx_filename = NULL;
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("sample_trees", 0);
-  __pyx_cur_scope = (struct __pyx_obj_5_cdec___pyx_scope_struct_12_sample_trees *)__pyx_tp_new_5_cdec___pyx_scope_struct_12_sample_trees(__pyx_ptype_5_cdec___pyx_scope_struct_12_sample_trees, __pyx_empty_tuple, NULL);
+  __pyx_cur_scope = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_12_sample_trees *)__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_12_sample_trees(__pyx_ptype_4cdec_5_cdec___pyx_scope_struct_12_sample_trees, __pyx_empty_tuple, NULL);
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     __Pyx_RefNannyFinishContext();
     return NULL;
@@ -10561,7 +10561,7 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_24sample_trees(struct __pyx_obj_5_
   __Pyx_GIVEREF((PyObject *)__pyx_cur_scope->__pyx_v_self);
   __pyx_cur_scope->__pyx_v_n = __pyx_v_n;
   {
-    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_5_cdec_10Hypergraph_26generator8, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 108; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_4cdec_5_cdec_10Hypergraph_26generator8, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 108; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_cur_scope);
     __Pyx_RefNannyFinishContext();
     return (PyObject *) gen;
@@ -10570,7 +10570,7 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_24sample_trees(struct __pyx_obj_5_
   __pyx_r = Py_None; __Pyx_INCREF(Py_None);
   goto __pyx_L0;
   __pyx_L1_error:;
-  __Pyx_AddTraceback("_cdec.Hypergraph.sample_trees", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.Hypergraph.sample_trees", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __pyx_r = NULL;
   __pyx_L0:;
   __Pyx_DECREF(((PyObject *)__pyx_cur_scope));
@@ -10579,9 +10579,9 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_24sample_trees(struct __pyx_obj_5_
   return __pyx_r;
 }
 
-static PyObject *__pyx_gb_5_cdec_10Hypergraph_26generator8(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
+static PyObject *__pyx_gb_4cdec_5_cdec_10Hypergraph_26generator8(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
 {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_12_sample_trees *__pyx_cur_scope = ((struct __pyx_obj_5_cdec___pyx_scope_struct_12_sample_trees *)__pyx_generator->closure);
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_12_sample_trees *__pyx_cur_scope = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_12_sample_trees *)__pyx_generator->closure);
   PyObject *__pyx_r = NULL;
   std::vector<std::string> *__pyx_t_1;
   size_t __pyx_t_2;
@@ -10603,7 +10603,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_26generator8(__pyx_GeneratorObject
   __pyx_L3_first_run:;
   if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 108; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":110
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":110
  *     def sample_trees(self, unsigned n):
  *        """hg.sample_trees(n) -> Sample of n trees from the hypergraph."""
  *        cdef vector[string]* trees = new vector[string]()             # <<<<<<<<<<<<<<
@@ -10618,16 +10618,16 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_26generator8(__pyx_GeneratorObject
   }
   __pyx_cur_scope->__pyx_v_trees = __pyx_t_1;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":111
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":111
  *        """hg.sample_trees(n) -> Sample of n trees from the hypergraph."""
  *        cdef vector[string]* trees = new vector[string]()
  *        hypergraph.sample_trees(self.hg[0], n, self._rng(), trees)             # <<<<<<<<<<<<<<
  *        cdef unsigned k
  *        try:
  */
-  HypergraphSampler::sample_trees((__pyx_cur_scope->__pyx_v_self->hg[0]), __pyx_cur_scope->__pyx_v_n, ((struct __pyx_vtabstruct_5_cdec_Hypergraph *)__pyx_cur_scope->__pyx_v_self->__pyx_vtab)->_rng(__pyx_cur_scope->__pyx_v_self), __pyx_cur_scope->__pyx_v_trees);
+  HypergraphSampler::sample_trees((__pyx_cur_scope->__pyx_v_self->hg[0]), __pyx_cur_scope->__pyx_v_n, ((struct __pyx_vtabstruct_4cdec_5_cdec_Hypergraph *)__pyx_cur_scope->__pyx_v_self->__pyx_vtab)->_rng(__pyx_cur_scope->__pyx_v_self), __pyx_cur_scope->__pyx_v_trees);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":113
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":113
  *        hypergraph.sample_trees(self.hg[0], n, self._rng(), trees)
  *        cdef unsigned k
  *        try:             # <<<<<<<<<<<<<<
@@ -10636,7 +10636,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_26generator8(__pyx_GeneratorObject
  */
   /*try:*/ {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":114
+    /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":114
  *        cdef unsigned k
  *        try:
  *            for k in range(trees.size()):             # <<<<<<<<<<<<<<
@@ -10647,7 +10647,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_26generator8(__pyx_GeneratorObject
     for (__pyx_t_3 = 0; __pyx_t_3 < __pyx_t_2; __pyx_t_3+=1) {
       __pyx_cur_scope->__pyx_v_k = __pyx_t_3;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":115
+      /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":115
  *        try:
  *            for k in range(trees.size()):
  *                yield unicode(trees[0][k].c_str(), 'utf8')             # <<<<<<<<<<<<<<
@@ -10683,7 +10683,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_26generator8(__pyx_GeneratorObject
     }
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":117
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":117
  *                yield unicode(trees[0][k].c_str(), 'utf8')
  *        finally:
  *            del trees             # <<<<<<<<<<<<<<
@@ -10732,18 +10732,18 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_26generator8(__pyx_GeneratorObject
 }
 
 /* Python wrapper */
-static PyObject *__pyx_pw_5_cdec_10Hypergraph_28intersect(PyObject *__pyx_v_self, PyObject *__pyx_v_inp); /*proto*/
-static char __pyx_doc_5_cdec_10Hypergraph_27intersect[] = "hg.intersect(Lattice/string): Intersect the hypergraph with the provided reference.";
-static PyObject *__pyx_pw_5_cdec_10Hypergraph_28intersect(PyObject *__pyx_v_self, PyObject *__pyx_v_inp) {
+static PyObject *__pyx_pw_4cdec_5_cdec_10Hypergraph_28intersect(PyObject *__pyx_v_self, PyObject *__pyx_v_inp); /*proto*/
+static char __pyx_doc_4cdec_5_cdec_10Hypergraph_27intersect[] = "hg.intersect(Lattice/string): Intersect the hypergraph with the provided reference.";
+static PyObject *__pyx_pw_4cdec_5_cdec_10Hypergraph_28intersect(PyObject *__pyx_v_self, PyObject *__pyx_v_inp) {
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("intersect (wrapper)", 0);
-  __pyx_r = __pyx_pf_5_cdec_10Hypergraph_27intersect(((struct __pyx_obj_5_cdec_Hypergraph *)__pyx_v_self), ((PyObject *)__pyx_v_inp));
+  __pyx_r = __pyx_pf_4cdec_5_cdec_10Hypergraph_27intersect(((struct __pyx_obj_4cdec_5_cdec_Hypergraph *)__pyx_v_self), ((PyObject *)__pyx_v_inp));
   __Pyx_RefNannyFinishContext();
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":119
+/* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":119
  *            del trees
  * 
  *     def intersect(self, inp):             # <<<<<<<<<<<<<<
@@ -10751,8 +10751,8 @@ static PyObject *__pyx_pw_5_cdec_10Hypergraph_28intersect(PyObject *__pyx_v_self
  *         cdef Lattice lat
  */
 
-static PyObject *__pyx_pf_5_cdec_10Hypergraph_27intersect(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self, PyObject *__pyx_v_inp) {
-  struct __pyx_obj_5_cdec_Lattice *__pyx_v_lat = 0;
+static PyObject *__pyx_pf_4cdec_5_cdec_10Hypergraph_27intersect(struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_self, PyObject *__pyx_v_inp) {
+  struct __pyx_obj_4cdec_5_cdec_Lattice *__pyx_v_lat = 0;
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   __Pyx_RefNannyDeclarations
   int __pyx_t_1;
@@ -10764,30 +10764,30 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_27intersect(struct __pyx_obj_5_cde
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":122
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":122
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  *             lat = <Lattice> inp
  *         elif isinstance(inp, basestring):
  */
-  __pyx_t_1 = __Pyx_TypeCheck(__pyx_v_inp, ((PyObject*)__pyx_ptype_5_cdec_Lattice)); 
+  __pyx_t_1 = __Pyx_TypeCheck(__pyx_v_inp, ((PyObject*)__pyx_ptype_4cdec_5_cdec_Lattice)); 
   __pyx_t_2 = (__pyx_t_1 != 0);
   if (__pyx_t_2) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":123
+    /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":123
  *         cdef Lattice lat
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  *         elif isinstance(inp, basestring):
  *             lat = Lattice(inp)
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-    __Pyx_INCREF(((PyObject *)((struct __pyx_obj_5_cdec_Lattice *)__pyx_v_inp)));
-    __pyx_v_lat = ((struct __pyx_obj_5_cdec_Lattice *)__pyx_v_inp);
+    __Pyx_INCREF(((PyObject *)((struct __pyx_obj_4cdec_5_cdec_Lattice *)__pyx_v_inp)));
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":124
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":124
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":125
+    /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":125
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     goto __pyx_L3;
   }
   /*else*/ {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":127
+    /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":127
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@@ -10842,7 +10842,7 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_27intersect(struct __pyx_obj_5_cde
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":128
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":128
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  *         return hypergraph.Intersect(lat.lattice[0], self.hg)             # <<<<<<<<<<<<<<
@@ -10861,7 +10861,7 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_27intersect(struct __pyx_obj_5_cde
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-  __Pyx_AddTraceback("_cdec.Hypergraph.intersect", __pyx_clineno, __pyx_lineno, __pyx_filename);
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@@ -10871,9 +10871,9 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_27intersect(struct __pyx_obj_5_cde
 }
 
 /* Python wrapper */
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-static PyObject *__pyx_pw_5_cdec_10Hypergraph_30prune(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static PyObject *__pyx_pw_4cdec_5_cdec_10Hypergraph_30prune(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
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+static PyObject *__pyx_pw_4cdec_5_cdec_10Hypergraph_30prune(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":134
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":135
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":135
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":136
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":137
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":138
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":139
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":140
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 /* Python wrapper */
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-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":142
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-static PyObject *__pyx_pf_5_cdec_10Hypergraph_31lattice(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self) {
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":144
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":145
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-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":147
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 /* Python wrapper */
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+static PyObject *__pyx_pw_4cdec_5_cdec_10Hypergraph_36reweight(PyObject *__pyx_v_self, PyObject *__pyx_v_weights) {
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+  __pyx_r = __pyx_pf_4cdec_5_cdec_10Hypergraph_35reweight(((struct __pyx_obj_4cdec_5_cdec_Hypergraph *)__pyx_v_self), ((PyObject *)__pyx_v_weights));
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-static PyObject *__pyx_pf_5_cdec_10Hypergraph_35reweight(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self, PyObject *__pyx_v_weights) {
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":154
+    /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":154
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-    __pyx_v_self->hg->Reweight((((struct __pyx_obj_5_cdec_SparseVector *)__pyx_v_weights)->vector[0]));
+    __pyx_v_self->hg->Reweight((((struct __pyx_obj_4cdec_5_cdec_SparseVector *)__pyx_v_weights)->vector[0]));
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":155
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":156
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-    __pyx_v_self->hg->Reweight((((struct __pyx_obj_5_cdec_DenseVector *)__pyx_v_weights)->vector[0]));
+    __pyx_v_self->hg->Reweight((((struct __pyx_obj_4cdec_5_cdec_DenseVector *)__pyx_v_weights)->vector[0]));
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":158
+    /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":158
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+static PyObject *__pyx_gb_4cdec_5_cdec_10Hypergraph_5edges_2generator9(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
 
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+static PyObject *__pyx_pw_4cdec_5_cdec_10Hypergraph_5edges_1__get__(PyObject *__pyx_v_self); /*proto*/
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-static PyObject *__pyx_gb_5_cdec_10Hypergraph_5edges_2generator9(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
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 {
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":163
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":164
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":169
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":170
+    /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":170
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 /* Python wrapper */
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-static PyObject *__pyx_pw_5_cdec_10Hypergraph_4goal_1__get__(PyObject *__pyx_v_self) {
+static PyObject *__pyx_pw_4cdec_5_cdec_10Hypergraph_4goal_1__get__(PyObject *__pyx_v_self); /*proto*/
+static PyObject *__pyx_pw_4cdec_5_cdec_10Hypergraph_4goal_1__get__(PyObject *__pyx_v_self) {
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-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":173
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  *     property goal:
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  * 
  */
 
-static PyObject *__pyx_pf_5_cdec_10Hypergraph_4goal___get__(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self) {
+static PyObject *__pyx_pf_4cdec_5_cdec_10Hypergraph_4goal___get__(struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_self) {
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":174
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":174
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+  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_5_cdec_HypergraphNode)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 174; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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+  __pyx_t_2 = ((struct __pyx_vtabstruct_4cdec_5_cdec_HypergraphNode *)((struct __pyx_obj_4cdec_5_cdec_HypergraphNode *)__pyx_t_1)->__pyx_vtab)->init(((struct __pyx_obj_4cdec_5_cdec_HypergraphNode *)__pyx_t_1), __pyx_v_self->hg, __pyx_v_self->hg->GoalNode()); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 174; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-  __Pyx_AddTraceback("_cdec.Hypergraph.goal.__get__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.Hypergraph.goal.__get__", __pyx_clineno, __pyx_lineno, __pyx_filename);
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@@ -11648,17 +11648,17 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_4goal___get__(struct __pyx_obj_5_c
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 /* Python wrapper */
-static PyObject *__pyx_pw_5_cdec_10Hypergraph_6npaths_1__get__(PyObject *__pyx_v_self); /*proto*/
-static PyObject *__pyx_pw_5_cdec_10Hypergraph_6npaths_1__get__(PyObject *__pyx_v_self) {
+static PyObject *__pyx_pw_4cdec_5_cdec_10Hypergraph_6npaths_1__get__(PyObject *__pyx_v_self); /*proto*/
+static PyObject *__pyx_pw_4cdec_5_cdec_10Hypergraph_6npaths_1__get__(PyObject *__pyx_v_self) {
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-  __pyx_r = __pyx_pf_5_cdec_10Hypergraph_6npaths___get__(((struct __pyx_obj_5_cdec_Hypergraph *)__pyx_v_self));
+  __pyx_r = __pyx_pf_4cdec_5_cdec_10Hypergraph_6npaths___get__(((struct __pyx_obj_4cdec_5_cdec_Hypergraph *)__pyx_v_self));
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-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":177
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  * 
  *     property npaths:
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  * 
  */
 
-static PyObject *__pyx_pf_5_cdec_10Hypergraph_6npaths___get__(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self) {
+static PyObject *__pyx_pf_4cdec_5_cdec_10Hypergraph_6npaths___get__(struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_self) {
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":178
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":178
  *     property npaths:
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-  __Pyx_AddTraceback("_cdec.Hypergraph.npaths.__get__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.Hypergraph.npaths.__get__", __pyx_clineno, __pyx_lineno, __pyx_filename);
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 /* Python wrapper */
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-static PyObject *__pyx_pw_5_cdec_10Hypergraph_38inside_outside(PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *unused) {
+static PyObject *__pyx_pw_4cdec_5_cdec_10Hypergraph_38inside_outside(PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *unused); /*proto*/
+static char __pyx_doc_4cdec_5_cdec_10Hypergraph_37inside_outside[] = "hg.inside_outside() -> SparseVector with inside-outside scores for each feature.";
+static PyObject *__pyx_pw_4cdec_5_cdec_10Hypergraph_38inside_outside(PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *unused) {
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-  __pyx_r = __pyx_pf_5_cdec_10Hypergraph_37inside_outside(((struct __pyx_obj_5_cdec_Hypergraph *)__pyx_v_self));
+  __pyx_r = __pyx_pf_4cdec_5_cdec_10Hypergraph_37inside_outside(((struct __pyx_obj_4cdec_5_cdec_Hypergraph *)__pyx_v_self));
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-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":180
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  *             return self.hg.NumberOfPaths()
  * 
  *     def inside_outside(self):             # <<<<<<<<<<<<<<
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  */
 
-static PyObject *__pyx_pf_5_cdec_10Hypergraph_37inside_outside(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self) {
+static PyObject *__pyx_pf_4cdec_5_cdec_10Hypergraph_37inside_outside(struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_self) {
   FastSparseVector<prob_t> *__pyx_v_result;
   prob_t __pyx_v_z;
-  struct __pyx_obj_5_cdec_SparseVector *__pyx_v_vector = 0;
+  struct __pyx_obj_4cdec_5_cdec_SparseVector *__pyx_v_vector = 0;
   FastSparseVector<prob_t>::const_iterator *__pyx_v_it;
   CYTHON_UNUSED unsigned int __pyx_v_i;
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@@ -11737,7 +11737,7 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_37inside_outside(struct __pyx_obj_
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":182
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":182
  *     def inside_outside(self):
  *         """hg.inside_outside() -> SparseVector with inside-outside scores for each feature."""
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@@ -11746,7 +11746,7 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_37inside_outside(struct __pyx_obj_
  */
   __pyx_v_result = new FastSparseVector<prob_t>();
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":183
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":183
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":184
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":184
  *         cdef FastSparseVector[prob_t]* result = new FastSparseVector[prob_t]()
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   (__pyx_v_result[0]) /= __pyx_v_z;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":185
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":185
  *         cdef prob_t z = hypergraph.InsideOutside(self.hg[0], result)
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  *         cdef SparseVector vector = SparseVector.__new__(SparseVector)             # <<<<<<<<<<<<<<
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-  __pyx_t_1 = __pyx_tp_new_5_cdec_SparseVector(((PyTypeObject *)((PyObject*)__pyx_ptype_5_cdec_SparseVector)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 185; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __pyx_tp_new_4cdec_5_cdec_SparseVector(((PyTypeObject *)((PyObject*)__pyx_ptype_4cdec_5_cdec_SparseVector)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 185; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  if (!(likely(__Pyx_TypeTest(__pyx_t_1, __pyx_ptype_5_cdec_SparseVector)))) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 185; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_v_vector = ((struct __pyx_obj_5_cdec_SparseVector *)__pyx_t_1);
+  if (!(likely(__Pyx_TypeTest(__pyx_t_1, __pyx_ptype_4cdec_5_cdec_SparseVector)))) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 185; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_v_vector = ((struct __pyx_obj_4cdec_5_cdec_SparseVector *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":186
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":186
  *         result[0] /= z
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@@ -11786,7 +11786,7 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_37inside_outside(struct __pyx_obj_
  */
   __pyx_v_vector->vector = new FastSparseVector<double>();
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":187
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":187
  *         cdef SparseVector vector = SparseVector.__new__(SparseVector)
  *         vector.vector = new FastSparseVector[double]()
  *         cdef FastSparseVector[prob_t].const_iterator* it = new FastSparseVector[prob_t].const_iterator(result[0], False)             # <<<<<<<<<<<<<<
@@ -11795,7 +11795,7 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_37inside_outside(struct __pyx_obj_
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":189
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":189
  *         cdef FastSparseVector[prob_t].const_iterator* it = new FastSparseVector[prob_t].const_iterator(result[0], False)
  *         cdef unsigned i
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     __pyx_v_i = __pyx_t_3;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":190
+    /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":190
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":191
+    /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":191
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     (++(__pyx_v_it[0]));
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":192
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":192
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":193
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":193
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":194
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-  __Pyx_AddTraceback("_cdec.Hypergraph.inside_outside", __pyx_clineno, __pyx_lineno, __pyx_filename);
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   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":201
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  *     cdef init(self, hypergraph.Hypergraph* hg, unsigned i):             # <<<<<<<<<<<<<<
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+static PyObject *__pyx_f_4cdec_5_cdec_14HypergraphEdge_init(struct __pyx_obj_4cdec_5_cdec_HypergraphEdge *__pyx_v_self, Hypergraph *__pyx_v_hg, unsigned int __pyx_v_i) {
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":202
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":203
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":204
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+  if (!(likely(__Pyx_TypeTest(__pyx_t_1, __pyx_ptype_4cdec_5_cdec_TRule)))) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 204; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-  __pyx_v_self->trule = ((struct __pyx_obj_5_cdec_TRule *)__pyx_t_1);
+  __pyx_v_self->trule = ((struct __pyx_obj_4cdec_5_cdec_TRule *)__pyx_t_1);
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":205
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":205
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":206
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":206
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-  __Pyx_AddTraceback("_cdec.HypergraphEdge.init", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.HypergraphEdge.init", __pyx_clineno, __pyx_lineno, __pyx_filename);
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-static Py_ssize_t __pyx_pw_5_cdec_14HypergraphEdge_1__len__(PyObject *__pyx_v_self) {
+static Py_ssize_t __pyx_pw_4cdec_5_cdec_14HypergraphEdge_1__len__(PyObject *__pyx_v_self); /*proto*/
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+  __pyx_r = __pyx_pf_4cdec_5_cdec_14HypergraphEdge___len__(((struct __pyx_obj_4cdec_5_cdec_HypergraphEdge *)__pyx_v_self));
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-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":208
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-static Py_ssize_t __pyx_pf_5_cdec_14HypergraphEdge___len__(struct __pyx_obj_5_cdec_HypergraphEdge *__pyx_v_self) {
+static Py_ssize_t __pyx_pf_4cdec_5_cdec_14HypergraphEdge___len__(struct __pyx_obj_4cdec_5_cdec_HypergraphEdge *__pyx_v_self) {
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":209
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 /* Python wrapper */
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-static PyObject *__pyx_pw_5_cdec_14HypergraphEdge_9head_node_1__get__(PyObject *__pyx_v_self) {
+static PyObject *__pyx_pw_4cdec_5_cdec_14HypergraphEdge_9head_node_1__get__(PyObject *__pyx_v_self); /*proto*/
+static PyObject *__pyx_pw_4cdec_5_cdec_14HypergraphEdge_9head_node_1__get__(PyObject *__pyx_v_self) {
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+  __pyx_r = __pyx_pf_4cdec_5_cdec_14HypergraphEdge_9head_node___get__(((struct __pyx_obj_4cdec_5_cdec_HypergraphEdge *)__pyx_v_self));
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-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":212
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  */
 
-static PyObject *__pyx_pf_5_cdec_14HypergraphEdge_9head_node___get__(struct __pyx_obj_5_cdec_HypergraphEdge *__pyx_v_self) {
+static PyObject *__pyx_pf_4cdec_5_cdec_14HypergraphEdge_9head_node___get__(struct __pyx_obj_4cdec_5_cdec_HypergraphEdge *__pyx_v_self) {
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":213
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+  __pyx_t_2 = ((struct __pyx_vtabstruct_4cdec_5_cdec_HypergraphNode *)((struct __pyx_obj_4cdec_5_cdec_HypergraphNode *)__pyx_t_1)->__pyx_vtab)->init(((struct __pyx_obj_4cdec_5_cdec_HypergraphNode *)__pyx_t_1), __pyx_v_self->hg, __pyx_v_self->edge->head_node_); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 213; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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 /* Python wrapper */
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-static PyObject *__pyx_pw_5_cdec_14HypergraphEdge_10tail_nodes_1__get__(PyObject *__pyx_v_self) {
+static PyObject *__pyx_pw_4cdec_5_cdec_14HypergraphEdge_10tail_nodes_1__get__(PyObject *__pyx_v_self); /*proto*/
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-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":216
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+static PyObject *__pyx_pf_4cdec_5_cdec_14HypergraphEdge_10tail_nodes___get__(struct __pyx_obj_4cdec_5_cdec_HypergraphEdge *__pyx_v_self) {
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+  __pyx_cur_scope = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_15___get__ *)__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_15___get__(__pyx_ptype_4cdec_5_cdec___pyx_scope_struct_15___get__, __pyx_empty_tuple, NULL);
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+    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_4cdec_5_cdec_14HypergraphEdge_10tail_nodes_2generator11, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 216; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-  __Pyx_AddTraceback("_cdec.HypergraphEdge.tail_nodes.__get__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.HypergraphEdge.tail_nodes.__get__", __pyx_clineno, __pyx_lineno, __pyx_filename);
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-static PyObject *__pyx_gb_5_cdec_14HypergraphEdge_10tail_nodes_2generator11(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
+static PyObject *__pyx_gb_4cdec_5_cdec_14HypergraphEdge_10tail_nodes_2generator11(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
 {
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+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_15___get__ *__pyx_cur_scope = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_15___get__ *)__pyx_generator->closure);
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":218
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":219
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 /* Python wrapper */
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+static PyObject *__pyx_pw_4cdec_5_cdec_14HypergraphEdge_4span_1__get__(PyObject *__pyx_v_self); /*proto*/
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-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":222
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-static PyObject *__pyx_pf_5_cdec_14HypergraphEdge_4span___get__(struct __pyx_obj_5_cdec_HypergraphEdge *__pyx_v_self) {
+static PyObject *__pyx_pf_4cdec_5_cdec_14HypergraphEdge_4span___get__(struct __pyx_obj_4cdec_5_cdec_HypergraphEdge *__pyx_v_self) {
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":223
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 /* Python wrapper */
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-static PyObject *__pyx_pw_5_cdec_14HypergraphEdge_8src_span_1__get__(PyObject *__pyx_v_self) {
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-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":226
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-static PyObject *__pyx_pf_5_cdec_14HypergraphEdge_8src_span___get__(struct __pyx_obj_5_cdec_HypergraphEdge *__pyx_v_self) {
+static PyObject *__pyx_pf_4cdec_5_cdec_14HypergraphEdge_8src_span___get__(struct __pyx_obj_4cdec_5_cdec_HypergraphEdge *__pyx_v_self) {
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":227
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-static PyObject *__pyx_pw_5_cdec_14HypergraphEdge_14feature_values_1__get__(PyObject *__pyx_v_self) {
+static PyObject *__pyx_pw_4cdec_5_cdec_14HypergraphEdge_14feature_values_1__get__(PyObject *__pyx_v_self); /*proto*/
+static PyObject *__pyx_pw_4cdec_5_cdec_14HypergraphEdge_14feature_values_1__get__(PyObject *__pyx_v_self) {
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+  __pyx_r = __pyx_pf_4cdec_5_cdec_14HypergraphEdge_14feature_values___get__(((struct __pyx_obj_4cdec_5_cdec_HypergraphEdge *)__pyx_v_self));
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-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":230
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  *     property feature_values:
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-static PyObject *__pyx_pf_5_cdec_14HypergraphEdge_14feature_values___get__(struct __pyx_obj_5_cdec_HypergraphEdge *__pyx_v_self) {
-  struct __pyx_obj_5_cdec_SparseVector *__pyx_v_vector = 0;
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":231
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":232
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":233
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-  __Pyx_AddTraceback("_cdec.HypergraphEdge.feature_values.__get__", __pyx_clineno, __pyx_lineno, __pyx_filename);
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 /* Python wrapper */
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-static PyObject *__pyx_pw_5_cdec_14HypergraphEdge_4prob_1__get__(PyObject *__pyx_v_self) {
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-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":236
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-static PyObject *__pyx_pf_5_cdec_14HypergraphEdge_4prob___get__(struct __pyx_obj_5_cdec_HypergraphEdge *__pyx_v_self) {
+static PyObject *__pyx_pf_4cdec_5_cdec_14HypergraphEdge_4prob___get__(struct __pyx_obj_4cdec_5_cdec_HypergraphEdge *__pyx_v_self) {
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":237
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-  __Pyx_AddTraceback("_cdec.HypergraphEdge.prob.__get__", __pyx_clineno, __pyx_lineno, __pyx_filename);
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-static PyObject *__pyx_pw_5_cdec_14HypergraphEdge_3__richcmp__(PyObject *__pyx_v_x, PyObject *__pyx_v_y, int __pyx_v_op) {
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-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":239
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":242
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":240
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":241
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":242
+    /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":242
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@@ -12527,7 +12527,7 @@ static PyObject *__pyx_pf_5_cdec_14HypergraphEdge_2__richcmp__(struct __pyx_obj_
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     case 3:
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":243
+    /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":243
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     break;
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":244
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":244
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  *             return not (x == y)
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-  __Pyx_AddTraceback("_cdec.HypergraphEdge.__richcmp__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.HypergraphEdge.__richcmp__", __pyx_clineno, __pyx_lineno, __pyx_filename);
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-static PyObject *__pyx_pw_5_cdec_14HypergraphEdge_5trule_1__get__(PyObject *__pyx_v_self) {
+static PyObject *__pyx_pw_4cdec_5_cdec_14HypergraphEdge_5trule_1__get__(PyObject *__pyx_v_self); /*proto*/
+static PyObject *__pyx_pw_4cdec_5_cdec_14HypergraphEdge_5trule_1__get__(PyObject *__pyx_v_self) {
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+  __pyx_r = __pyx_pf_4cdec_5_cdec_14HypergraphEdge_5trule___get__(((struct __pyx_obj_4cdec_5_cdec_HypergraphEdge *)__pyx_v_self));
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-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":199
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-static PyObject *__pyx_pf_5_cdec_14HypergraphEdge_5trule___get__(struct __pyx_obj_5_cdec_HypergraphEdge *__pyx_v_self) {
+static PyObject *__pyx_pf_4cdec_5_cdec_14HypergraphEdge_5trule___get__(struct __pyx_obj_4cdec_5_cdec_HypergraphEdge *__pyx_v_self) {
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 /* Python wrapper */
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-static int __pyx_pw_5_cdec_14HypergraphEdge_5trule_3__set__(PyObject *__pyx_v_self, PyObject *__pyx_v_value) {
+static int __pyx_pw_4cdec_5_cdec_14HypergraphEdge_5trule_3__set__(PyObject *__pyx_v_self, PyObject *__pyx_v_value); /*proto*/
+static int __pyx_pw_4cdec_5_cdec_14HypergraphEdge_5trule_3__set__(PyObject *__pyx_v_self, PyObject *__pyx_v_value) {
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+  __pyx_r = __pyx_pf_4cdec_5_cdec_14HypergraphEdge_5trule_2__set__(((struct __pyx_obj_4cdec_5_cdec_HypergraphEdge *)__pyx_v_self), ((PyObject *)__pyx_v_value));
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-static int __pyx_pf_5_cdec_14HypergraphEdge_5trule_2__set__(struct __pyx_obj_5_cdec_HypergraphEdge *__pyx_v_self, PyObject *__pyx_v_value) {
+static int __pyx_pf_4cdec_5_cdec_14HypergraphEdge_5trule_2__set__(struct __pyx_obj_4cdec_5_cdec_HypergraphEdge *__pyx_v_self, PyObject *__pyx_v_value) {
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+  if (!(likely(((__pyx_v_value) == Py_None) || likely(__Pyx_TypeTest(__pyx_v_value, __pyx_ptype_4cdec_5_cdec_TRule))))) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 199; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-  __pyx_v_self->trule = ((struct __pyx_obj_5_cdec_TRule *)__pyx_v_value);
+  __pyx_v_self->trule = ((struct __pyx_obj_4cdec_5_cdec_TRule *)__pyx_v_value);
 
   __pyx_r = 0;
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-  __Pyx_AddTraceback("_cdec.HypergraphEdge.trule.__set__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.HypergraphEdge.trule.__set__", __pyx_clineno, __pyx_lineno, __pyx_filename);
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 /* Python wrapper */
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-static int __pyx_pw_5_cdec_14HypergraphEdge_5trule_5__del__(PyObject *__pyx_v_self) {
+static int __pyx_pw_4cdec_5_cdec_14HypergraphEdge_5trule_5__del__(PyObject *__pyx_v_self); /*proto*/
+static int __pyx_pw_4cdec_5_cdec_14HypergraphEdge_5trule_5__del__(PyObject *__pyx_v_self) {
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-  __pyx_r = __pyx_pf_5_cdec_14HypergraphEdge_5trule_4__del__(((struct __pyx_obj_5_cdec_HypergraphEdge *)__pyx_v_self));
+  __pyx_r = __pyx_pf_4cdec_5_cdec_14HypergraphEdge_5trule_4__del__(((struct __pyx_obj_4cdec_5_cdec_HypergraphEdge *)__pyx_v_self));
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-static int __pyx_pf_5_cdec_14HypergraphEdge_5trule_4__del__(struct __pyx_obj_5_cdec_HypergraphEdge *__pyx_v_self) {
+static int __pyx_pf_4cdec_5_cdec_14HypergraphEdge_5trule_4__del__(struct __pyx_obj_4cdec_5_cdec_HypergraphEdge *__pyx_v_self) {
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-  __pyx_v_self->trule = ((struct __pyx_obj_5_cdec_TRule *)Py_None);
+  __pyx_v_self->trule = ((struct __pyx_obj_4cdec_5_cdec_TRule *)Py_None);
 
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-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":250
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+static PyObject *__pyx_f_4cdec_5_cdec_14HypergraphNode_init(struct __pyx_obj_4cdec_5_cdec_HypergraphNode *__pyx_v_self, Hypergraph *__pyx_v_hg, unsigned int __pyx_v_i) {
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":251
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":252
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":252
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":253
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":253
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+static PyObject *__pyx_gb_4cdec_5_cdec_14HypergraphNode_8in_edges_2generator12(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
 
 /* Python wrapper */
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-static PyObject *__pyx_pw_5_cdec_14HypergraphNode_8in_edges_1__get__(PyObject *__pyx_v_self) {
+static PyObject *__pyx_pw_4cdec_5_cdec_14HypergraphNode_8in_edges_1__get__(PyObject *__pyx_v_self); /*proto*/
+static PyObject *__pyx_pw_4cdec_5_cdec_14HypergraphNode_8in_edges_1__get__(PyObject *__pyx_v_self) {
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+  __pyx_r = __pyx_pf_4cdec_5_cdec_14HypergraphNode_8in_edges___get__(((struct __pyx_obj_4cdec_5_cdec_HypergraphNode *)__pyx_v_self));
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-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":256
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-static PyObject *__pyx_pf_5_cdec_14HypergraphNode_8in_edges___get__(struct __pyx_obj_5_cdec_HypergraphNode *__pyx_v_self) {
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+static PyObject *__pyx_pf_4cdec_5_cdec_14HypergraphNode_8in_edges___get__(struct __pyx_obj_4cdec_5_cdec_HypergraphNode *__pyx_v_self) {
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+  __pyx_cur_scope = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_16___get__ *)__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_16___get__(__pyx_ptype_4cdec_5_cdec___pyx_scope_struct_16___get__, __pyx_empty_tuple, NULL);
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+    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_4cdec_5_cdec_14HypergraphNode_8in_edges_2generator12, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 256; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-  __Pyx_AddTraceback("_cdec.HypergraphNode.in_edges.__get__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.HypergraphNode.in_edges.__get__", __pyx_clineno, __pyx_lineno, __pyx_filename);
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 }
 
-static PyObject *__pyx_gb_5_cdec_14HypergraphNode_8in_edges_2generator12(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
+static PyObject *__pyx_gb_4cdec_5_cdec_14HypergraphNode_8in_edges_2generator12(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
 {
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+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_16___get__ *__pyx_cur_scope = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_16___get__ *)__pyx_generator->closure);
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":258
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":258
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":259
+    /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":259
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+    __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_5_cdec_HypergraphEdge)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 259; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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+    __pyx_t_4 = ((struct __pyx_vtabstruct_4cdec_5_cdec_HypergraphEdge *)((struct __pyx_obj_4cdec_5_cdec_HypergraphEdge *)__pyx_t_3)->__pyx_vtab)->init(((struct __pyx_obj_4cdec_5_cdec_HypergraphEdge *)__pyx_t_3), __pyx_cur_scope->__pyx_v_self->hg, (__pyx_cur_scope->__pyx_v_self->node->in_edges_[__pyx_cur_scope->__pyx_v_i])); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 259; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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+static PyObject *__pyx_gb_4cdec_5_cdec_14HypergraphNode_9out_edges_2generator13(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
 
 /* Python wrapper */
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-static PyObject *__pyx_pw_5_cdec_14HypergraphNode_9out_edges_1__get__(PyObject *__pyx_v_self) {
+static PyObject *__pyx_pw_4cdec_5_cdec_14HypergraphNode_9out_edges_1__get__(PyObject *__pyx_v_self); /*proto*/
+static PyObject *__pyx_pw_4cdec_5_cdec_14HypergraphNode_9out_edges_1__get__(PyObject *__pyx_v_self) {
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-  __pyx_r = __pyx_pf_5_cdec_14HypergraphNode_9out_edges___get__(((struct __pyx_obj_5_cdec_HypergraphNode *)__pyx_v_self));
+  __pyx_r = __pyx_pf_4cdec_5_cdec_14HypergraphNode_9out_edges___get__(((struct __pyx_obj_4cdec_5_cdec_HypergraphNode *)__pyx_v_self));
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-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":262
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  *     property out_edges:
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-static PyObject *__pyx_pf_5_cdec_14HypergraphNode_9out_edges___get__(struct __pyx_obj_5_cdec_HypergraphNode *__pyx_v_self) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_17___get__ *__pyx_cur_scope;
+static PyObject *__pyx_pf_4cdec_5_cdec_14HypergraphNode_9out_edges___get__(struct __pyx_obj_4cdec_5_cdec_HypergraphNode *__pyx_v_self) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_17___get__ *__pyx_cur_scope;
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+  __pyx_cur_scope = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_17___get__ *)__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_17___get__(__pyx_ptype_4cdec_5_cdec___pyx_scope_struct_17___get__, __pyx_empty_tuple, NULL);
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-  __Pyx_AddTraceback("_cdec.HypergraphNode.out_edges.__get__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.HypergraphNode.out_edges.__get__", __pyx_clineno, __pyx_lineno, __pyx_filename);
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 }
 
-static PyObject *__pyx_gb_5_cdec_14HypergraphNode_9out_edges_2generator13(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
+static PyObject *__pyx_gb_4cdec_5_cdec_14HypergraphNode_9out_edges_2generator13(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
 {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_17___get__ *__pyx_cur_scope = ((struct __pyx_obj_5_cdec___pyx_scope_struct_17___get__ *)__pyx_generator->closure);
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_17___get__ *__pyx_cur_scope = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_17___get__ *)__pyx_generator->closure);
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   unsigned int __pyx_t_2;
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":264
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":264
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@@ -12937,16 +12937,16 @@ static PyObject *__pyx_gb_5_cdec_14HypergraphNode_9out_edges_2generator13(__pyx_
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":265
+    /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":265
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  *     property span:
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+    __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_5_cdec_HypergraphEdge)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 265; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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 /* Python wrapper */
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-static PyObject *__pyx_pw_5_cdec_14HypergraphNode_4span_1__get__(PyObject *__pyx_v_self) {
+static PyObject *__pyx_pw_4cdec_5_cdec_14HypergraphNode_4span_1__get__(PyObject *__pyx_v_self); /*proto*/
+static PyObject *__pyx_pw_4cdec_5_cdec_14HypergraphNode_4span_1__get__(PyObject *__pyx_v_self) {
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+  __pyx_r = __pyx_pf_4cdec_5_cdec_14HypergraphNode_4span___get__(((struct __pyx_obj_4cdec_5_cdec_HypergraphNode *)__pyx_v_self));
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-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":268
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  *     property span:
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  * 
  */
 
-static PyObject *__pyx_pf_5_cdec_14HypergraphNode_4span___get__(struct __pyx_obj_5_cdec_HypergraphNode *__pyx_v_self) {
+static PyObject *__pyx_pf_4cdec_5_cdec_14HypergraphNode_4span___get__(struct __pyx_obj_4cdec_5_cdec_HypergraphNode *__pyx_v_self) {
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":269
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":269
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@@ -13031,7 +13031,7 @@ static PyObject *__pyx_pf_5_cdec_14HypergraphNode_4span___get__(struct __pyx_obj
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-  __Pyx_AddTraceback("_cdec.HypergraphNode.span.__get__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.HypergraphNode.span.__get__", __pyx_clineno, __pyx_lineno, __pyx_filename);
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 /* Python wrapper */
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-static PyObject *__pyx_pw_5_cdec_14HypergraphNode_3cat_1__get__(PyObject *__pyx_v_self) {
+static PyObject *__pyx_pw_4cdec_5_cdec_14HypergraphNode_3cat_1__get__(PyObject *__pyx_v_self); /*proto*/
+static PyObject *__pyx_pw_4cdec_5_cdec_14HypergraphNode_3cat_1__get__(PyObject *__pyx_v_self) {
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+  __pyx_r = __pyx_pf_4cdec_5_cdec_14HypergraphNode_3cat___get__(((struct __pyx_obj_4cdec_5_cdec_HypergraphNode *)__pyx_v_self));
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-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":272
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-static PyObject *__pyx_pf_5_cdec_14HypergraphNode_3cat___get__(struct __pyx_obj_5_cdec_HypergraphNode *__pyx_v_self) {
+static PyObject *__pyx_pf_4cdec_5_cdec_14HypergraphNode_3cat___get__(struct __pyx_obj_4cdec_5_cdec_HypergraphNode *__pyx_v_self) {
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":273
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":273
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":274
+    /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":274
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-  __Pyx_AddTraceback("_cdec.HypergraphNode.cat.__get__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.HypergraphNode.cat.__get__", __pyx_clineno, __pyx_lineno, __pyx_filename);
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@@ -13118,17 +13118,17 @@ static PyObject *__pyx_pf_5_cdec_14HypergraphNode_3cat___get__(struct __pyx_obj_
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 /* Python wrapper */
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-static PyObject *__pyx_pw_5_cdec_14HypergraphNode_1__richcmp__(PyObject *__pyx_v_x, PyObject *__pyx_v_y, int __pyx_v_op) {
+static PyObject *__pyx_pw_4cdec_5_cdec_14HypergraphNode_1__richcmp__(PyObject *__pyx_v_x, PyObject *__pyx_v_y, int __pyx_v_op); /*proto*/
+static PyObject *__pyx_pw_4cdec_5_cdec_14HypergraphNode_1__richcmp__(PyObject *__pyx_v_x, PyObject *__pyx_v_y, int __pyx_v_op) {
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+  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_x), __pyx_ptype_4cdec_5_cdec_HypergraphNode, 1, "x", 0))) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 276; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_y), __pyx_ptype_4cdec_5_cdec_HypergraphNode, 1, "y", 0))) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 276; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_r = __pyx_pf_4cdec_5_cdec_14HypergraphNode___richcmp__(((struct __pyx_obj_4cdec_5_cdec_HypergraphNode *)__pyx_v_x), ((struct __pyx_obj_4cdec_5_cdec_HypergraphNode *)__pyx_v_y), ((int)__pyx_v_op));
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@@ -13137,7 +13137,7 @@ static PyObject *__pyx_pw_5_cdec_14HypergraphNode_1__richcmp__(PyObject *__pyx_v
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 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":276
+/* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":276
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-static PyObject *__pyx_pf_5_cdec_14HypergraphNode___richcmp__(struct __pyx_obj_5_cdec_HypergraphNode *__pyx_v_x, struct __pyx_obj_5_cdec_HypergraphNode *__pyx_v_y, int __pyx_v_op) {
+static PyObject *__pyx_pf_4cdec_5_cdec_14HypergraphNode___richcmp__(struct __pyx_obj_4cdec_5_cdec_HypergraphNode *__pyx_v_x, struct __pyx_obj_4cdec_5_cdec_HypergraphNode *__pyx_v_y, int __pyx_v_op) {
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":279
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":279
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@@ -13164,7 +13164,7 @@ static PyObject *__pyx_pf_5_cdec_14HypergraphNode___richcmp__(struct __pyx_obj_5
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":277
+    /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":277
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@@ -13173,7 +13173,7 @@ static PyObject *__pyx_pf_5_cdec_14HypergraphNode___richcmp__(struct __pyx_obj_5
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     case 2:
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":278
+    /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":278
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":279
+    /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":279
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@@ -13197,7 +13197,7 @@ static PyObject *__pyx_pf_5_cdec_14HypergraphNode___richcmp__(struct __pyx_obj_5
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     case 3:
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":280
+    /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":280
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@@ -13215,7 +13215,7 @@ static PyObject *__pyx_pf_5_cdec_14HypergraphNode___richcmp__(struct __pyx_obj_5
     break;
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":281
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":281
  *         elif op == 3: # !=
  *             return not (x == y)
  *         raise NotImplemented('comparison not implemented for HypergraphNode')             # <<<<<<<<<<<<<<
@@ -13230,7 +13230,7 @@ static PyObject *__pyx_pf_5_cdec_14HypergraphNode___richcmp__(struct __pyx_obj_5
   goto __pyx_L0;
   __pyx_L1_error:;
   __Pyx_XDECREF(__pyx_t_1);
-  __Pyx_AddTraceback("_cdec.HypergraphNode.__richcmp__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.HypergraphNode.__richcmp__", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __pyx_r = NULL;
   __pyx_L0:;
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@@ -13239,20 +13239,20 @@ static PyObject *__pyx_pf_5_cdec_14HypergraphNode___richcmp__(struct __pyx_obj_5
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 /* Python wrapper */
-static int __pyx_pw_5_cdec_7Lattice_1__cinit__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static int __pyx_pw_5_cdec_7Lattice_1__cinit__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static int __pyx_pw_4cdec_5_cdec_7Lattice_1__cinit__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static int __pyx_pw_4cdec_5_cdec_7Lattice_1__cinit__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
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-  __pyx_r = __pyx_pf_5_cdec_7Lattice___cinit__(((struct __pyx_obj_5_cdec_Lattice *)__pyx_v_self));
+  __pyx_r = __pyx_pf_4cdec_5_cdec_7Lattice___cinit__(((struct __pyx_obj_4cdec_5_cdec_Lattice *)__pyx_v_self));
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-/* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":6
+/* "/home/mdenkows/cdec/python/cdec/lattice.pxi":6
  *     cdef lattice.Lattice* lattice
  * 
  *     def __cinit__(self):             # <<<<<<<<<<<<<<
@@ -13260,12 +13260,12 @@ static int __pyx_pw_5_cdec_7Lattice_1__cinit__(PyObject *__pyx_v_self, PyObject
  * 
  */
 
-static int __pyx_pf_5_cdec_7Lattice___cinit__(struct __pyx_obj_5_cdec_Lattice *__pyx_v_self) {
+static int __pyx_pf_4cdec_5_cdec_7Lattice___cinit__(struct __pyx_obj_4cdec_5_cdec_Lattice *__pyx_v_self) {
   int __pyx_r;
   __Pyx_RefNannyDeclarations
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":7
+  /* "/home/mdenkows/cdec/python/cdec/lattice.pxi":7
  * 
  *     def __cinit__(self):
  *         self.lattice = new lattice.Lattice()             # <<<<<<<<<<<<<<
@@ -13280,12 +13280,12 @@ static int __pyx_pf_5_cdec_7Lattice___cinit__(struct __pyx_obj_5_cdec_Lattice *_
 }
 
 /* Python wrapper */
-static int __pyx_pw_5_cdec_7Lattice_3__init__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static char __pyx_doc_5_cdec_7Lattice_2__init__[] = "Lattice(tuple) -> Lattice from node list.\n        Lattice(string) -> Lattice from PLF representation.";
+static int __pyx_pw_4cdec_5_cdec_7Lattice_3__init__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static char __pyx_doc_4cdec_5_cdec_7Lattice_2__init__[] = "Lattice(tuple) -> Lattice from node list.\n        Lattice(string) -> Lattice from PLF representation.";
 #if CYTHON_COMPILING_IN_CPYTHON
-struct wrapperbase __pyx_wrapperbase_5_cdec_7Lattice_2__init__;
+struct wrapperbase __pyx_wrapperbase_4cdec_5_cdec_7Lattice_2__init__;
 #endif
-static int __pyx_pw_5_cdec_7Lattice_3__init__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static int __pyx_pw_4cdec_5_cdec_7Lattice_3__init__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_inp = 0;
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   __pyx_L3_error:;
-  __Pyx_AddTraceback("_cdec.Lattice.__init__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.Lattice.__init__", __pyx_clineno, __pyx_lineno, __pyx_filename);
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-  __pyx_r = __pyx_pf_5_cdec_7Lattice_2__init__(((struct __pyx_obj_5_cdec_Lattice *)__pyx_v_self), __pyx_v_inp);
+  __pyx_r = __pyx_pf_4cdec_5_cdec_7Lattice_2__init__(((struct __pyx_obj_4cdec_5_cdec_Lattice *)__pyx_v_self), __pyx_v_inp);
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-/* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":9
+/* "/home/mdenkows/cdec/python/cdec/lattice.pxi":9
  *         self.lattice = new lattice.Lattice()
  * 
  *     def __init__(self, inp):             # <<<<<<<<<<<<<<
@@ -13341,7 +13341,7 @@ static int __pyx_pw_5_cdec_7Lattice_3__init__(PyObject *__pyx_v_self, PyObject *
  *         Lattice(string) -> Lattice from PLF representation."""
  */
 
-static int __pyx_pf_5_cdec_7Lattice_2__init__(struct __pyx_obj_5_cdec_Lattice *__pyx_v_self, PyObject *__pyx_v_inp) {
+static int __pyx_pf_4cdec_5_cdec_7Lattice_2__init__(struct __pyx_obj_4cdec_5_cdec_Lattice *__pyx_v_self, PyObject *__pyx_v_inp) {
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   PyObject *__pyx_v_arcs = NULL;
   int __pyx_r;
@@ -13359,7 +13359,7 @@ static int __pyx_pf_5_cdec_7Lattice_2__init__(struct __pyx_obj_5_cdec_Lattice *_
   int __pyx_clineno = 0;
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":12
+  /* "/home/mdenkows/cdec/python/cdec/lattice.pxi":12
  *         """Lattice(tuple) -> Lattice from node list.
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@@ -13370,7 +13370,7 @@ static int __pyx_pf_5_cdec_7Lattice_2__init__(struct __pyx_obj_5_cdec_Lattice *_
   __pyx_t_2 = (__pyx_t_1 != 0);
   if (__pyx_t_2) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":13
+    /* "/home/mdenkows/cdec/python/cdec/lattice.pxi":13
  *         Lattice(string) -> Lattice from PLF representation."""
  *         if isinstance(inp, tuple):
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@@ -13380,7 +13380,7 @@ static int __pyx_pf_5_cdec_7Lattice_2__init__(struct __pyx_obj_5_cdec_Lattice *_
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":14
+    /* "/home/mdenkows/cdec/python/cdec/lattice.pxi":14
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       __pyx_t_7 = 0;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":15
+      /* "/home/mdenkows/cdec/python/cdec/lattice.pxi":15
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  *             for i, arcs in enumerate(inp):
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@@ -13449,7 +13449,7 @@ static int __pyx_pf_5_cdec_7Lattice_2__init__(struct __pyx_obj_5_cdec_Lattice *_
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":16
+  /* "/home/mdenkows/cdec/python/cdec/lattice.pxi":16
  *             for i, arcs in enumerate(inp):
  *                 self[i] = arcs
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   if (__pyx_t_1) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":17
+    /* "/home/mdenkows/cdec/python/cdec/lattice.pxi":17
  *                 self[i] = arcs
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-    __pyx_t_4 = ((PyObject *)__pyx_f_5_cdec_as_str(__pyx_v_inp, NULL)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[4]; __pyx_lineno = 17; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = ((PyObject *)__pyx_f_4cdec_5_cdec_as_str(__pyx_v_inp, NULL)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[4]; __pyx_lineno = 17; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
@@ -13476,7 +13476,7 @@ static int __pyx_pf_5_cdec_7Lattice_2__init__(struct __pyx_obj_5_cdec_Lattice *_
   }
   /*else*/ {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":19
+    /* "/home/mdenkows/cdec/python/cdec/lattice.pxi":19
  *             lattice.ConvertTextOrPLF(as_str(inp), self.lattice)
  *         else:
  *             raise TypeError('cannot create lattice from %s' % type(inp))             # <<<<<<<<<<<<<<
@@ -13505,7 +13505,7 @@ static int __pyx_pf_5_cdec_7Lattice_2__init__(struct __pyx_obj_5_cdec_Lattice *_
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   __Pyx_XDECREF(__pyx_t_7);
-  __Pyx_AddTraceback("_cdec.Lattice.__init__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.Lattice.__init__", __pyx_clineno, __pyx_lineno, __pyx_filename);
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@@ -13515,15 +13515,15 @@ static int __pyx_pf_5_cdec_7Lattice_2__init__(struct __pyx_obj_5_cdec_Lattice *_
 }
 
 /* Python wrapper */
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-static void __pyx_pw_5_cdec_7Lattice_5__dealloc__(PyObject *__pyx_v_self) {
+static void __pyx_pw_4cdec_5_cdec_7Lattice_5__dealloc__(PyObject *__pyx_v_self); /*proto*/
+static void __pyx_pw_4cdec_5_cdec_7Lattice_5__dealloc__(PyObject *__pyx_v_self) {
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-/* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":21
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  */
 
-static void __pyx_pf_5_cdec_7Lattice_4__dealloc__(CYTHON_UNUSED struct __pyx_obj_5_cdec_Lattice *__pyx_v_self) {
+static void __pyx_pf_4cdec_5_cdec_7Lattice_4__dealloc__(CYTHON_UNUSED struct __pyx_obj_4cdec_5_cdec_Lattice *__pyx_v_self) {
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":22
+  /* "/home/mdenkows/cdec/python/cdec/lattice.pxi":22
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@@ -13548,8 +13548,8 @@ static void __pyx_pf_5_cdec_7Lattice_4__dealloc__(CYTHON_UNUSED struct __pyx_obj
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-static PyObject *__pyx_pw_5_cdec_7Lattice_7__getitem__(PyObject *__pyx_v_self, PyObject *__pyx_arg_index) {
+static PyObject *__pyx_pw_4cdec_5_cdec_7Lattice_7__getitem__(PyObject *__pyx_v_self, PyObject *__pyx_arg_index); /*proto*/
+static PyObject *__pyx_pw_4cdec_5_cdec_7Lattice_7__getitem__(PyObject *__pyx_v_self, PyObject *__pyx_arg_index) {
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   __pyx_L3_error:;
-  __Pyx_AddTraceback("_cdec.Lattice.__getitem__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.Lattice.__getitem__", __pyx_clineno, __pyx_lineno, __pyx_filename);
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+  __pyx_r = __pyx_pf_4cdec_5_cdec_7Lattice_6__getitem__(((struct __pyx_obj_4cdec_5_cdec_Lattice *)__pyx_v_self), ((int)__pyx_v_index));
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-/* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":24
+/* "/home/mdenkows/cdec/python/cdec/lattice.pxi":24
  *         del self.lattice
  * 
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-static PyObject *__pyx_pf_5_cdec_7Lattice_6__getitem__(struct __pyx_obj_5_cdec_Lattice *__pyx_v_self, int __pyx_v_index) {
+static PyObject *__pyx_pf_4cdec_5_cdec_7Lattice_6__getitem__(struct __pyx_obj_4cdec_5_cdec_Lattice *__pyx_v_self, int __pyx_v_index) {
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   std::vector<LatticeArc> __pyx_v_arc_vector;
   LatticeArc *__pyx_v_arc;
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":25
+  /* "/home/mdenkows/cdec/python/cdec/lattice.pxi":25
  * 
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   if (__pyx_t_3) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":26
+    /* "/home/mdenkows/cdec/python/cdec/lattice.pxi":26
  *     def __getitem__(self, int index):
  *         if not 0 <= index < len(self):
  *             raise IndexError('lattice index out of range')             # <<<<<<<<<<<<<<
@@ -13632,7 +13632,7 @@ static PyObject *__pyx_pf_5_cdec_7Lattice_6__getitem__(struct __pyx_obj_5_cdec_L
   }
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":27
+  /* "/home/mdenkows/cdec/python/cdec/lattice.pxi":27
  *         if not 0 <= index < len(self):
  *             raise IndexError('lattice index out of range')
  *         arcs = []             # <<<<<<<<<<<<<<
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   __pyx_t_4 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":28
+  /* "/home/mdenkows/cdec/python/cdec/lattice.pxi":28
  *             raise IndexError('lattice index out of range')
  *         arcs = []
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@@ -13653,7 +13653,7 @@ static PyObject *__pyx_pf_5_cdec_7Lattice_6__getitem__(struct __pyx_obj_5_cdec_L
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":31
+  /* "/home/mdenkows/cdec/python/cdec/lattice.pxi":31
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  *         cdef unsigned i
  *         for i in range(arc_vector.size()):             # <<<<<<<<<<<<<<
@@ -13664,7 +13664,7 @@ static PyObject *__pyx_pf_5_cdec_7Lattice_6__getitem__(struct __pyx_obj_5_cdec_L
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     __pyx_v_i = __pyx_t_6;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":32
+    /* "/home/mdenkows/cdec/python/cdec/lattice.pxi":32
  *         cdef unsigned i
  *         for i in range(arc_vector.size()):
  *             arc = &arc_vector[i]             # <<<<<<<<<<<<<<
@@ -13673,7 +13673,7 @@ static PyObject *__pyx_pf_5_cdec_7Lattice_6__getitem__(struct __pyx_obj_5_cdec_L
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     __pyx_v_arc = (&(__pyx_v_arc_vector[__pyx_v_i]));
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":33
+    /* "/home/mdenkows/cdec/python/cdec/lattice.pxi":33
  *         for i in range(arc_vector.size()):
  *             arc = &arc_vector[i]
  *             label = unicode(TDConvert(arc.label).c_str(), 'utf8')             # <<<<<<<<<<<<<<
@@ -13697,7 +13697,7 @@ static PyObject *__pyx_pf_5_cdec_7Lattice_6__getitem__(struct __pyx_obj_5_cdec_L
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     __pyx_t_4 = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":34
+    /* "/home/mdenkows/cdec/python/cdec/lattice.pxi":34
  *             arc = &arc_vector[i]
  *             label = unicode(TDConvert(arc.label).c_str(), 'utf8')
  *             arcs.append((label, arc.cost, arc.dist2next))             # <<<<<<<<<<<<<<
@@ -13723,7 +13723,7 @@ static PyObject *__pyx_pf_5_cdec_7Lattice_6__getitem__(struct __pyx_obj_5_cdec_L
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":35
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-static int __pyx_pw_5_cdec_7Lattice_9__setitem__(PyObject *__pyx_v_self, PyObject *__pyx_arg_index, PyObject *__pyx_v_arcs) {
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-  __Pyx_AddTraceback("_cdec.Lattice.__iter__", __pyx_clineno, __pyx_lineno, __pyx_filename);
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-static PyObject *__pyx_gb_5_cdec_7Lattice_18generator14(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
+static PyObject *__pyx_gb_4cdec_5_cdec_7Lattice_18generator14(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":58
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":59
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+static PyObject *__pyx_gb_4cdec_5_cdec_7Lattice_5todot_2generator20(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
 
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+  __pyx_cur_scope = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_20_lines *)__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_20_lines(__pyx_ptype_4cdec_5_cdec___pyx_scope_struct_20_lines, __pyx_empty_tuple, NULL);
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-  __Pyx_AddTraceback("_cdec.Lattice.todot.lines", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.Lattice.todot.lines", __pyx_clineno, __pyx_lineno, __pyx_filename);
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-static PyObject *__pyx_gb_5_cdec_7Lattice_5todot_2generator20(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":64
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":65
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":66
+  /* "/home/mdenkows/cdec/python/cdec/lattice.pxi":66
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":67
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":68
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-      /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":69
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":71
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":63
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":22
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-static PyObject *__pyx_gb_5_cdec_15SufficientStats_6generator15(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
+static PyObject *__pyx_gb_4cdec_5_cdec_15SufficientStats_6generator15(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
 {
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":45
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":46
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+  __pyx_r = __pyx_pf_4cdec_5_cdec_15SufficientStats_7__getitem__(((struct __pyx_obj_4cdec_5_cdec_SufficientStats *)__pyx_v_self), ((int)__pyx_v_index));
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-static PyObject *__pyx_pf_5_cdec_15SufficientStats_7__getitem__(struct __pyx_obj_5_cdec_SufficientStats *__pyx_v_self, int __pyx_v_index) {
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":49
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":50
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":51
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-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":53
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":54
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":55
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":58
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":59
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":60
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-  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_5_cdec_SufficientStats)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 60; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_5_cdec_SufficientStats)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 60; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_v_result = ((struct __pyx_obj_5_cdec_SufficientStats *)__pyx_t_1);
+  __pyx_v_result = ((struct __pyx_obj_4cdec_5_cdec_SufficientStats *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":61
+  /* "/home/mdenkows/cdec/python/cdec/mteval.pxi":61
  *         cdef SufficientStats sy = as_stats(y, x)
  *         cdef SufficientStats result = SufficientStats()
  *         result.stats = new mteval.SufficientStats(mteval.add(sx.stats[0], sy.stats[0]))             # <<<<<<<<<<<<<<
@@ -15915,7 +15915,7 @@ static PyObject *__pyx_pf_5_cdec_15SufficientStats_11__add__(PyObject *__pyx_v_x
  */
   __pyx_v_result->stats = new SufficientStats(operator+((__pyx_v_sx->stats[0]), (__pyx_v_sy->stats[0])));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":62
+  /* "/home/mdenkows/cdec/python/cdec/mteval.pxi":62
  *         cdef SufficientStats result = SufficientStats()
  *         result.stats = new mteval.SufficientStats(mteval.add(sx.stats[0], sy.stats[0]))
  *         result.metric = sx.metric             # <<<<<<<<<<<<<<
@@ -15925,7 +15925,7 @@ static PyObject *__pyx_pf_5_cdec_15SufficientStats_11__add__(PyObject *__pyx_v_x
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   __pyx_v_result->metric = __pyx_t_2;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":63
+  /* "/home/mdenkows/cdec/python/cdec/mteval.pxi":63
  *         result.stats = new mteval.SufficientStats(mteval.add(sx.stats[0], sy.stats[0]))
  *         result.metric = sx.metric
  *         return result             # <<<<<<<<<<<<<<
@@ -15941,7 +15941,7 @@ static PyObject *__pyx_pf_5_cdec_15SufficientStats_11__add__(PyObject *__pyx_v_x
   goto __pyx_L0;
   __pyx_L1_error:;
   __Pyx_XDECREF(__pyx_t_1);
-  __Pyx_AddTraceback("_cdec.SufficientStats.__add__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.SufficientStats.__add__", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __pyx_r = NULL;
   __pyx_L0:;
   __Pyx_XDECREF((PyObject *)__pyx_v_sx);
@@ -15953,9 +15953,9 @@ static PyObject *__pyx_pf_5_cdec_15SufficientStats_11__add__(PyObject *__pyx_v_x
 }
 
 /* Python wrapper */
-static int __pyx_pw_5_cdec_12CandidateSet_1__cinit__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static int __pyx_pw_5_cdec_12CandidateSet_1__cinit__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
-  struct __pyx_obj_5_cdec_SegmentEvaluator *__pyx_v_evaluator = 0;
+static int __pyx_pw_4cdec_5_cdec_12CandidateSet_1__cinit__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static int __pyx_pw_4cdec_5_cdec_12CandidateSet_1__cinit__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+  struct __pyx_obj_4cdec_5_cdec_SegmentEvaluator *__pyx_v_evaluator = 0;
   int __pyx_lineno = 0;
   const char *__pyx_filename = NULL;
   int __pyx_clineno = 0;
@@ -15987,18 +15987,18 @@ static int __pyx_pw_5_cdec_12CandidateSet_1__cinit__(PyObject *__pyx_v_self, PyO
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       values[0] = PyTuple_GET_ITEM(__pyx_args, 0);
     }
-    __pyx_v_evaluator = ((struct __pyx_obj_5_cdec_SegmentEvaluator *)values[0]);
+    __pyx_v_evaluator = ((struct __pyx_obj_4cdec_5_cdec_SegmentEvaluator *)values[0]);
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
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   __pyx_L3_error:;
-  __Pyx_AddTraceback("_cdec.CandidateSet.__cinit__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.CandidateSet.__cinit__", __pyx_clineno, __pyx_lineno, __pyx_filename);
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   return -1;
   __pyx_L4_argument_unpacking_done:;
-  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_evaluator), __pyx_ptype_5_cdec_SegmentEvaluator, 1, "evaluator", 0))) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 70; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_r = __pyx_pf_5_cdec_12CandidateSet___cinit__(((struct __pyx_obj_5_cdec_CandidateSet *)__pyx_v_self), __pyx_v_evaluator);
+  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_evaluator), __pyx_ptype_4cdec_5_cdec_SegmentEvaluator, 1, "evaluator", 0))) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 70; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_r = __pyx_pf_4cdec_5_cdec_12CandidateSet___cinit__(((struct __pyx_obj_4cdec_5_cdec_CandidateSet *)__pyx_v_self), __pyx_v_evaluator);
   goto __pyx_L0;
   __pyx_L1_error:;
   __pyx_r = -1;
@@ -16007,7 +16007,7 @@ static int __pyx_pw_5_cdec_12CandidateSet_1__cinit__(PyObject *__pyx_v_self, PyO
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":70
+/* "/home/mdenkows/cdec/python/cdec/mteval.pxi":70
  *     cdef mteval.CandidateSet* cs
  * 
  *     def __cinit__(self, SegmentEvaluator evaluator):             # <<<<<<<<<<<<<<
@@ -16015,13 +16015,13 @@ static int __pyx_pw_5_cdec_12CandidateSet_1__cinit__(PyObject *__pyx_v_self, PyO
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-static int __pyx_pf_5_cdec_12CandidateSet___cinit__(struct __pyx_obj_5_cdec_CandidateSet *__pyx_v_self, struct __pyx_obj_5_cdec_SegmentEvaluator *__pyx_v_evaluator) {
+static int __pyx_pf_4cdec_5_cdec_12CandidateSet___cinit__(struct __pyx_obj_4cdec_5_cdec_CandidateSet *__pyx_v_self, struct __pyx_obj_4cdec_5_cdec_SegmentEvaluator *__pyx_v_evaluator) {
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":71
+  /* "/home/mdenkows/cdec/python/cdec/mteval.pxi":71
  * 
  *     def __cinit__(self, SegmentEvaluator evaluator):
  *         self.scorer = new shared_ptr[mteval.SegmentEvaluator](evaluator.scorer[0])             # <<<<<<<<<<<<<<
@@ -16030,7 +16030,7 @@ static int __pyx_pf_5_cdec_12CandidateSet___cinit__(struct __pyx_obj_5_cdec_Cand
  */
   __pyx_v_self->scorer = new boost::shared_ptr<SegmentEvaluator>((__pyx_v_evaluator->scorer[0]));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":72
+  /* "/home/mdenkows/cdec/python/cdec/mteval.pxi":72
  *     def __cinit__(self, SegmentEvaluator evaluator):
  *         self.scorer = new shared_ptr[mteval.SegmentEvaluator](evaluator.scorer[0])
  *         self.metric = evaluator.metric             # <<<<<<<<<<<<<<
@@ -16040,7 +16040,7 @@ static int __pyx_pf_5_cdec_12CandidateSet___cinit__(struct __pyx_obj_5_cdec_Cand
   __pyx_t_1 = __pyx_v_evaluator->metric;
   __pyx_v_self->metric = __pyx_t_1;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":73
+  /* "/home/mdenkows/cdec/python/cdec/mteval.pxi":73
  *         self.scorer = new shared_ptr[mteval.SegmentEvaluator](evaluator.scorer[0])
  *         self.metric = evaluator.metric
  *         self.cs = new mteval.CandidateSet()             # <<<<<<<<<<<<<<
@@ -16055,15 +16055,15 @@ static int __pyx_pf_5_cdec_12CandidateSet___cinit__(struct __pyx_obj_5_cdec_Cand
 }
 
 /* Python wrapper */
-static void __pyx_pw_5_cdec_12CandidateSet_3__dealloc__(PyObject *__pyx_v_self); /*proto*/
-static void __pyx_pw_5_cdec_12CandidateSet_3__dealloc__(PyObject *__pyx_v_self) {
+static void __pyx_pw_4cdec_5_cdec_12CandidateSet_3__dealloc__(PyObject *__pyx_v_self); /*proto*/
+static void __pyx_pw_4cdec_5_cdec_12CandidateSet_3__dealloc__(PyObject *__pyx_v_self) {
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-  __pyx_pf_5_cdec_12CandidateSet_2__dealloc__(((struct __pyx_obj_5_cdec_CandidateSet *)__pyx_v_self));
+  __pyx_pf_4cdec_5_cdec_12CandidateSet_2__dealloc__(((struct __pyx_obj_4cdec_5_cdec_CandidateSet *)__pyx_v_self));
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-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":75
+/* "/home/mdenkows/cdec/python/cdec/mteval.pxi":75
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  * 
  *     def __dealloc__(self):             # <<<<<<<<<<<<<<
@@ -16071,11 +16071,11 @@ static void __pyx_pw_5_cdec_12CandidateSet_3__dealloc__(PyObject *__pyx_v_self)
  *         del self.cs
  */
 
-static void __pyx_pf_5_cdec_12CandidateSet_2__dealloc__(CYTHON_UNUSED struct __pyx_obj_5_cdec_CandidateSet *__pyx_v_self) {
+static void __pyx_pf_4cdec_5_cdec_12CandidateSet_2__dealloc__(CYTHON_UNUSED struct __pyx_obj_4cdec_5_cdec_CandidateSet *__pyx_v_self) {
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   __Pyx_RefNannySetupContext("__dealloc__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":76
+  /* "/home/mdenkows/cdec/python/cdec/mteval.pxi":76
  * 
  *     def __dealloc__(self):
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@@ -16084,7 +16084,7 @@ static void __pyx_pf_5_cdec_12CandidateSet_2__dealloc__(CYTHON_UNUSED struct __p
  */
   delete __pyx_v_self->scorer;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":77
+  /* "/home/mdenkows/cdec/python/cdec/mteval.pxi":77
  *     def __dealloc__(self):
  *         del self.scorer
  *         del self.cs             # <<<<<<<<<<<<<<
@@ -16097,17 +16097,17 @@ static void __pyx_pf_5_cdec_12CandidateSet_2__dealloc__(CYTHON_UNUSED struct __p
 }
 
 /* Python wrapper */
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-static Py_ssize_t __pyx_pw_5_cdec_12CandidateSet_5__len__(PyObject *__pyx_v_self) {
+static Py_ssize_t __pyx_pw_4cdec_5_cdec_12CandidateSet_5__len__(PyObject *__pyx_v_self); /*proto*/
+static Py_ssize_t __pyx_pw_4cdec_5_cdec_12CandidateSet_5__len__(PyObject *__pyx_v_self) {
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-  __pyx_r = __pyx_pf_5_cdec_12CandidateSet_4__len__(((struct __pyx_obj_5_cdec_CandidateSet *)__pyx_v_self));
+  __pyx_r = __pyx_pf_4cdec_5_cdec_12CandidateSet_4__len__(((struct __pyx_obj_4cdec_5_cdec_CandidateSet *)__pyx_v_self));
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-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":79
+/* "/home/mdenkows/cdec/python/cdec/mteval.pxi":79
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  * 
  *     def __len__(self):             # <<<<<<<<<<<<<<
@@ -16115,12 +16115,12 @@ static Py_ssize_t __pyx_pw_5_cdec_12CandidateSet_5__len__(PyObject *__pyx_v_self
  * 
  */
 
-static Py_ssize_t __pyx_pf_5_cdec_12CandidateSet_4__len__(struct __pyx_obj_5_cdec_CandidateSet *__pyx_v_self) {
+static Py_ssize_t __pyx_pf_4cdec_5_cdec_12CandidateSet_4__len__(struct __pyx_obj_4cdec_5_cdec_CandidateSet *__pyx_v_self) {
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":80
+  /* "/home/mdenkows/cdec/python/cdec/mteval.pxi":80
  * 
  *     def __len__(self):
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@@ -16137,8 +16137,8 @@ static Py_ssize_t __pyx_pf_5_cdec_12CandidateSet_4__len__(struct __pyx_obj_5_cde
 }
 
 /* Python wrapper */
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-static PyObject *__pyx_pw_5_cdec_12CandidateSet_7__getitem__(PyObject *__pyx_v_self, PyObject *__pyx_arg_k) {
+static PyObject *__pyx_pw_4cdec_5_cdec_12CandidateSet_7__getitem__(PyObject *__pyx_v_self, PyObject *__pyx_arg_k); /*proto*/
+static PyObject *__pyx_pw_4cdec_5_cdec_12CandidateSet_7__getitem__(PyObject *__pyx_v_self, PyObject *__pyx_arg_k) {
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@@ -16151,16 +16151,16 @@ static PyObject *__pyx_pw_5_cdec_12CandidateSet_7__getitem__(PyObject *__pyx_v_s
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   __pyx_L3_error:;
-  __Pyx_AddTraceback("_cdec.CandidateSet.__getitem__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.CandidateSet.__getitem__", __pyx_clineno, __pyx_lineno, __pyx_filename);
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-  __pyx_r = __pyx_pf_5_cdec_12CandidateSet_6__getitem__(((struct __pyx_obj_5_cdec_CandidateSet *)__pyx_v_self), ((int)__pyx_v_k));
+  __pyx_r = __pyx_pf_4cdec_5_cdec_12CandidateSet_6__getitem__(((struct __pyx_obj_4cdec_5_cdec_CandidateSet *)__pyx_v_self), ((int)__pyx_v_k));
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-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":82
+/* "/home/mdenkows/cdec/python/cdec/mteval.pxi":82
  *         return self.cs.size()
  * 
  *     def __getitem__(self,int k):             # <<<<<<<<<<<<<<
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-static PyObject *__pyx_pf_5_cdec_12CandidateSet_6__getitem__(struct __pyx_obj_5_cdec_CandidateSet *__pyx_v_self, int __pyx_v_k) {
-  struct __pyx_obj_5_cdec_Candidate *__pyx_v_candidate = 0;
+static PyObject *__pyx_pf_4cdec_5_cdec_12CandidateSet_6__getitem__(struct __pyx_obj_4cdec_5_cdec_CandidateSet *__pyx_v_self, int __pyx_v_k) {
+  struct __pyx_obj_4cdec_5_cdec_Candidate *__pyx_v_candidate = 0;
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   __Pyx_RefNannyDeclarations
   int __pyx_t_1;
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":83
+  /* "/home/mdenkows/cdec/python/cdec/mteval.pxi":83
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  *     def __getitem__(self,int k):
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@@ -16194,14 +16194,14 @@ static PyObject *__pyx_pf_5_cdec_12CandidateSet_6__getitem__(struct __pyx_obj_5_
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   if (__pyx_t_2) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":84
+    /* "/home/mdenkows/cdec/python/cdec/mteval.pxi":84
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-    __pyx_t_3 = PyObject_Call(__pyx_builtin_IndexError, ((PyObject *)__pyx_k_tuple_44), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 84; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_Call(__pyx_builtin_IndexError, ((PyObject *)__pyx_k_tuple_45), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 84; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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@@ -16210,19 +16210,19 @@ static PyObject *__pyx_pf_5_cdec_12CandidateSet_6__getitem__(struct __pyx_obj_5_
   }
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":85
+  /* "/home/mdenkows/cdec/python/cdec/mteval.pxi":85
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-  __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_5_cdec_Candidate)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 85; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_5_cdec_Candidate)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 85; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
-  __pyx_v_candidate = ((struct __pyx_obj_5_cdec_Candidate *)__pyx_t_3);
+  __pyx_v_candidate = ((struct __pyx_obj_4cdec_5_cdec_Candidate *)__pyx_t_3);
   __pyx_t_3 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":86
+  /* "/home/mdenkows/cdec/python/cdec/mteval.pxi":86
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  *         candidate.candidate = &self.cs[0][k]             # <<<<<<<<<<<<<<
@@ -16231,7 +16231,7 @@ static PyObject *__pyx_pf_5_cdec_12CandidateSet_6__getitem__(struct __pyx_obj_5_
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   __pyx_v_candidate->candidate = (&((__pyx_v_self->cs[0])[__pyx_v_k]));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":87
+  /* "/home/mdenkows/cdec/python/cdec/mteval.pxi":87
  *         cdef Candidate candidate = Candidate()
  *         candidate.candidate = &self.cs[0][k]
  *         candidate.score = self.metric.ComputeScore(self.cs[0][k].eval_feats)             # <<<<<<<<<<<<<<
@@ -16240,7 +16240,7 @@ static PyObject *__pyx_pf_5_cdec_12CandidateSet_6__getitem__(struct __pyx_obj_5_
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   __pyx_v_candidate->score = __pyx_v_self->metric->ComputeScore(((__pyx_v_self->cs[0])[__pyx_v_k]).eval_feats);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":88
+  /* "/home/mdenkows/cdec/python/cdec/mteval.pxi":88
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-  __Pyx_AddTraceback("_cdec.CandidateSet.__getitem__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.CandidateSet.__getitem__", __pyx_clineno, __pyx_lineno, __pyx_filename);
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 }
-static PyObject *__pyx_gb_5_cdec_12CandidateSet_10generator16(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
+static PyObject *__pyx_gb_4cdec_5_cdec_12CandidateSet_10generator16(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
 
 /* Python wrapper */
-static PyObject *__pyx_pw_5_cdec_12CandidateSet_9__iter__(PyObject *__pyx_v_self); /*proto*/
-static PyObject *__pyx_pw_5_cdec_12CandidateSet_9__iter__(PyObject *__pyx_v_self) {
+static PyObject *__pyx_pw_4cdec_5_cdec_12CandidateSet_9__iter__(PyObject *__pyx_v_self); /*proto*/
+static PyObject *__pyx_pw_4cdec_5_cdec_12CandidateSet_9__iter__(PyObject *__pyx_v_self) {
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-  __pyx_r = __pyx_pf_5_cdec_12CandidateSet_8__iter__(((struct __pyx_obj_5_cdec_CandidateSet *)__pyx_v_self));
+  __pyx_r = __pyx_pf_4cdec_5_cdec_12CandidateSet_8__iter__(((struct __pyx_obj_4cdec_5_cdec_CandidateSet *)__pyx_v_self));
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-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":90
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-static PyObject *__pyx_pf_5_cdec_12CandidateSet_8__iter__(struct __pyx_obj_5_cdec_CandidateSet *__pyx_v_self) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_22___iter__ *__pyx_cur_scope;
+static PyObject *__pyx_pf_4cdec_5_cdec_12CandidateSet_8__iter__(struct __pyx_obj_4cdec_5_cdec_CandidateSet *__pyx_v_self) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_22___iter__ *__pyx_cur_scope;
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+  __pyx_cur_scope = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_22___iter__ *)__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_22___iter__(__pyx_ptype_4cdec_5_cdec___pyx_scope_struct_22___iter__, __pyx_empty_tuple, NULL);
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+    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_4cdec_5_cdec_12CandidateSet_10generator16, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 90; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-  __Pyx_AddTraceback("_cdec.CandidateSet.__iter__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.CandidateSet.__iter__", __pyx_clineno, __pyx_lineno, __pyx_filename);
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 }
 
-static PyObject *__pyx_gb_5_cdec_12CandidateSet_10generator16(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
+static PyObject *__pyx_gb_4cdec_5_cdec_12CandidateSet_10generator16(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
 {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_22___iter__ *__pyx_cur_scope = ((struct __pyx_obj_5_cdec___pyx_scope_struct_22___iter__ *)__pyx_generator->closure);
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_22___iter__ *__pyx_cur_scope = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_22___iter__ *)__pyx_generator->closure);
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":92
+  /* "/home/mdenkows/cdec/python/cdec/mteval.pxi":92
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":93
+    /* "/home/mdenkows/cdec/python/cdec/mteval.pxi":93
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-static PyObject *__pyx_pw_5_cdec_12CandidateSet_12add_kbest(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
-  struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_hypergraph = 0;
+static PyObject *__pyx_pw_4cdec_5_cdec_12CandidateSet_12add_kbest(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static char __pyx_doc_4cdec_5_cdec_12CandidateSet_11add_kbest[] = "cs.add_kbest(Hypergraph hypergraph, int k) -> Extract K-best hypotheses \n        from the hypergraph and add them to the candidate set.";
+static PyObject *__pyx_pw_4cdec_5_cdec_12CandidateSet_12add_kbest(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+  struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_hypergraph = 0;
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-    __pyx_v_hypergraph = ((struct __pyx_obj_5_cdec_Hypergraph *)values[0]);
+    __pyx_v_hypergraph = ((struct __pyx_obj_4cdec_5_cdec_Hypergraph *)values[0]);
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   __pyx_L3_error:;
-  __Pyx_AddTraceback("_cdec.CandidateSet.add_kbest", __pyx_clineno, __pyx_lineno, __pyx_filename);
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-  __pyx_r = __pyx_pf_5_cdec_12CandidateSet_11add_kbest(((struct __pyx_obj_5_cdec_CandidateSet *)__pyx_v_self), __pyx_v_hypergraph, __pyx_v_k);
+  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_hypergraph), __pyx_ptype_4cdec_5_cdec_Hypergraph, 1, "hypergraph", 0))) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 95; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_r = __pyx_pf_4cdec_5_cdec_12CandidateSet_11add_kbest(((struct __pyx_obj_4cdec_5_cdec_CandidateSet *)__pyx_v_self), __pyx_v_hypergraph, __pyx_v_k);
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 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":95
+/* "/home/mdenkows/cdec/python/cdec/mteval.pxi":95
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-static PyObject *__pyx_pf_5_cdec_12CandidateSet_11add_kbest(struct __pyx_obj_5_cdec_CandidateSet *__pyx_v_self, struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_hypergraph, unsigned int __pyx_v_k) {
+static PyObject *__pyx_pf_4cdec_5_cdec_12CandidateSet_11add_kbest(struct __pyx_obj_4cdec_5_cdec_CandidateSet *__pyx_v_self, struct __pyx_obj_4cdec_5_cdec_Hypergraph *__pyx_v_hypergraph, unsigned int __pyx_v_k) {
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":98
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-static void __pyx_pw_5_cdec_16SegmentEvaluator_1__dealloc__(PyObject *__pyx_v_self) {
+static void __pyx_pw_4cdec_5_cdec_16SegmentEvaluator_1__dealloc__(PyObject *__pyx_v_self); /*proto*/
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-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":104
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-static void __pyx_pf_5_cdec_16SegmentEvaluator___dealloc__(CYTHON_UNUSED struct __pyx_obj_5_cdec_SegmentEvaluator *__pyx_v_self) {
+static void __pyx_pf_4cdec_5_cdec_16SegmentEvaluator___dealloc__(CYTHON_UNUSED struct __pyx_obj_4cdec_5_cdec_SegmentEvaluator *__pyx_v_self) {
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":105
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-static PyObject *__pyx_pw_5_cdec_16SegmentEvaluator_3evaluate(PyObject *__pyx_v_self, PyObject *__pyx_v_sentence) {
+static PyObject *__pyx_pw_4cdec_5_cdec_16SegmentEvaluator_3evaluate(PyObject *__pyx_v_self, PyObject *__pyx_v_sentence); /*proto*/
+static char __pyx_doc_4cdec_5_cdec_16SegmentEvaluator_2evaluate[] = "se.evaluate(sentence) -> SufficientStats for the given hypothesis.";
+static PyObject *__pyx_pw_4cdec_5_cdec_16SegmentEvaluator_3evaluate(PyObject *__pyx_v_self, PyObject *__pyx_v_sentence) {
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+  __pyx_r = __pyx_pf_4cdec_5_cdec_16SegmentEvaluator_2evaluate(((struct __pyx_obj_4cdec_5_cdec_SegmentEvaluator *)__pyx_v_self), ((PyObject *)__pyx_v_sentence));
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-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":107
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+static PyObject *__pyx_pf_4cdec_5_cdec_16SegmentEvaluator_2evaluate(struct __pyx_obj_4cdec_5_cdec_SegmentEvaluator *__pyx_v_self, PyObject *__pyx_v_sentence) {
   std::vector<WordID> __pyx_v_hyp;
-  struct __pyx_obj_5_cdec_SufficientStats *__pyx_v_sf = 0;
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":110
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+  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_5_cdec_SufficientStats)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 110; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_v_sf = ((struct __pyx_obj_5_cdec_SufficientStats *)__pyx_t_1);
+  __pyx_v_sf = ((struct __pyx_obj_4cdec_5_cdec_SufficientStats *)__pyx_t_1);
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":111
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":112
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":113
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":115
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":125
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":126
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":127
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":128
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":135
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":139
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":141
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":142
+    /* "/home/mdenkows/cdec/python/cdec/mteval.pxi":142
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":144
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+  __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_5_cdec_SegmentEvaluator)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 144; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-  __pyx_v_evaluator = ((struct __pyx_obj_5_cdec_SegmentEvaluator *)__pyx_t_3);
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":145
+  /* "/home/mdenkows/cdec/python/cdec/mteval.pxi":145
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":146
+  /* "/home/mdenkows/cdec/python/cdec/mteval.pxi":146
  *         cdef SegmentEvaluator evaluator = SegmentEvaluator()
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":148
+  /* "/home/mdenkows/cdec/python/cdec/mteval.pxi":148
  *         evaluator.scorer = new shared_ptr[mteval.SegmentEvaluator](
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":149
+  /* "/home/mdenkows/cdec/python/cdec/mteval.pxi":149
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-static PyObject *__pyx_pw_5_cdec_6Scorer_7__str__(PyObject *__pyx_v_self) {
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-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":151
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-static PyObject *__pyx_pf_5_cdec_6Scorer_6__str__(struct __pyx_obj_5_cdec_Scorer *__pyx_v_self) {
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-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":154
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":155
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-  __pyx_v_metric = ((struct __pyx_obj_5_cdec_Metric *)__pyx_v_metric_);
+  __Pyx_INCREF(((PyObject *)((struct __pyx_obj_4cdec_5_cdec_Metric *)__pyx_v_metric_)));
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":156
+  /* "/home/mdenkows/cdec/python/cdec/mteval.pxi":156
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":158
+  /* "/home/mdenkows/cdec/python/cdec/mteval.pxi":158
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  *     cdef unsigned i
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":159
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":160
+  /* "/home/mdenkows/cdec/python/cdec/mteval.pxi":160
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-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":162
+/* "/home/mdenkows/cdec/python/cdec/mteval.pxi":162
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-  struct __pyx_obj_5_cdec_Metric *__pyx_v_metric = 0;
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":166
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-  __pyx_v_metric = ((struct __pyx_obj_5_cdec_Metric *)__pyx_v_metric_);
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+  __pyx_v_metric = ((struct __pyx_obj_4cdec_5_cdec_Metric *)__pyx_v_metric_);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":167
+  /* "/home/mdenkows/cdec/python/cdec/mteval.pxi":167
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":169
+  /* "/home/mdenkows/cdec/python/cdec/mteval.pxi":169
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":170
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":171
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":172
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":173
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-static PyObject *__pyx_pf_5_cdec_4_make_config(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_config) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_23__make_config *__pyx_cur_scope;
+static PyObject *__pyx_pf_4cdec_5_cdec_4_make_config(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_config) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_23__make_config *__pyx_cur_scope;
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   int __pyx_lineno = 0;
   const char *__pyx_filename = NULL;
   int __pyx_clineno = 0;
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-  __pyx_cur_scope = (struct __pyx_obj_5_cdec___pyx_scope_struct_23__make_config *)__pyx_tp_new_5_cdec___pyx_scope_struct_23__make_config(__pyx_ptype_5_cdec___pyx_scope_struct_23__make_config, __pyx_empty_tuple, NULL);
+  __pyx_cur_scope = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_23__make_config *)__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_23__make_config(__pyx_ptype_4cdec_5_cdec___pyx_scope_struct_23__make_config, __pyx_empty_tuple, NULL);
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@@ -17943,7 +17943,7 @@ static PyObject *__pyx_pf_5_cdec_4_make_config(CYTHON_UNUSED PyObject *__pyx_sel
   __Pyx_INCREF(__pyx_cur_scope->__pyx_v_config);
   __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_config);
   {
-    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_5_cdec_6generator17, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 32; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_4cdec_5_cdec_6generator17, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 32; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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     return (PyObject *) gen;
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   __pyx_r = Py_None; __Pyx_INCREF(Py_None);
   goto __pyx_L0;
   __pyx_L1_error:;
-  __Pyx_AddTraceback("_cdec._make_config", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec._make_config", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __pyx_r = NULL;
   __pyx_L0:;
   __Pyx_DECREF(((PyObject *)__pyx_cur_scope));
@@ -17961,9 +17961,9 @@ static PyObject *__pyx_pf_5_cdec_4_make_config(CYTHON_UNUSED PyObject *__pyx_sel
   return __pyx_r;
 }
 
-static PyObject *__pyx_gb_5_cdec_6generator17(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
+static PyObject *__pyx_gb_4cdec_5_cdec_6generator17(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
 {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_23__make_config *__pyx_cur_scope = ((struct __pyx_obj_5_cdec___pyx_scope_struct_23__make_config *)__pyx_generator->closure);
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_23__make_config *__pyx_cur_scope = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_23__make_config *)__pyx_generator->closure);
   PyObject *__pyx_r = NULL;
   PyObject *__pyx_t_1 = NULL;
   PyObject *__pyx_t_2 = NULL;
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-  /* "_cdec.pyx":33
+  /* "cdec/_cdec.pyx":33
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  * def _make_config(config):
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@@ -18104,7 +18104,7 @@ static PyObject *__pyx_gb_5_cdec_6generator17(__pyx_GeneratorObject *__pyx_gener
     __pyx_cur_scope->__pyx_v_value = __pyx_t_6;
     __pyx_t_6 = 0;
 
-    /* "_cdec.pyx":34
+    /* "cdec/_cdec.pyx":34
  * def _make_config(config):
  *     for key, value in config.items():
  *         if isinstance(value, dict):             # <<<<<<<<<<<<<<
@@ -18115,7 +18115,7 @@ static PyObject *__pyx_gb_5_cdec_6generator17(__pyx_GeneratorObject *__pyx_gener
     __pyx_t_10 = (__pyx_t_9 != 0);
     if (__pyx_t_10) {
 
-      /* "_cdec.pyx":35
+      /* "cdec/_cdec.pyx":35
  *     for key, value in config.items():
  *         if isinstance(value, dict):
  *             for name, info in value.items():             # <<<<<<<<<<<<<<
@@ -18224,7 +18224,7 @@ static PyObject *__pyx_gb_5_cdec_6generator17(__pyx_GeneratorObject *__pyx_gener
         __pyx_cur_scope->__pyx_v_info = __pyx_t_7;
         __pyx_t_7 = 0;
 
-        /* "_cdec.pyx":36
+        /* "cdec/_cdec.pyx":36
  *         if isinstance(value, dict):
  *             for name, info in value.items():
  *                 yield key, '%s %s' % (name, info)             # <<<<<<<<<<<<<<
@@ -18239,7 +18239,7 @@ static PyObject *__pyx_gb_5_cdec_6generator17(__pyx_GeneratorObject *__pyx_gener
         __Pyx_INCREF(__pyx_cur_scope->__pyx_v_info);
         PyTuple_SET_ITEM(__pyx_t_6, 1, __pyx_cur_scope->__pyx_v_info);
         __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_info);
-        __pyx_t_7 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_45), ((PyObject *)__pyx_t_6)); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 36; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_7 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_46), ((PyObject *)__pyx_t_6)); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 36; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(((PyObject *)__pyx_t_7));
         __Pyx_DECREF(((PyObject *)__pyx_t_6)); __pyx_t_6 = 0;
         __pyx_t_6 = PyTuple_New(2); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 36; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
@@ -18282,7 +18282,7 @@ static PyObject *__pyx_gb_5_cdec_6generator17(__pyx_GeneratorObject *__pyx_gener
       goto __pyx_L8;
     }
 
-    /* "_cdec.pyx":37
+    /* "cdec/_cdec.pyx":37
  *             for name, info in value.items():
  *                 yield key, '%s %s' % (name, info)
  *         elif isinstance(value, list):             # <<<<<<<<<<<<<<
@@ -18293,7 +18293,7 @@ static PyObject *__pyx_gb_5_cdec_6generator17(__pyx_GeneratorObject *__pyx_gener
     __pyx_t_9 = (__pyx_t_10 != 0);
     if (__pyx_t_9) {
 
-      /* "_cdec.pyx":38
+      /* "cdec/_cdec.pyx":38
  *                 yield key, '%s %s' % (name, info)
  *         elif isinstance(value, list):
  *             for name in value:             # <<<<<<<<<<<<<<
@@ -18340,7 +18340,7 @@ static PyObject *__pyx_gb_5_cdec_6generator17(__pyx_GeneratorObject *__pyx_gener
         __pyx_cur_scope->__pyx_v_name = __pyx_t_6;
         __pyx_t_6 = 0;
 
-        /* "_cdec.pyx":39
+        /* "cdec/_cdec.pyx":39
  *         elif isinstance(value, list):
  *             for name in value:
  *                 yield key, name             # <<<<<<<<<<<<<<
@@ -18388,7 +18388,7 @@ static PyObject *__pyx_gb_5_cdec_6generator17(__pyx_GeneratorObject *__pyx_gener
     }
     /*else*/ {
 
-      /* "_cdec.pyx":41
+      /* "cdec/_cdec.pyx":41
  *                 yield key, name
  *         else:
  *             yield key, str(value)             # <<<<<<<<<<<<<<
@@ -18452,12 +18452,12 @@ static PyObject *__pyx_gb_5_cdec_6generator17(__pyx_GeneratorObject *__pyx_gener
 }
 
 /* Python wrapper */
-static int __pyx_pw_5_cdec_7Decoder_1__init__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static char __pyx_doc_5_cdec_7Decoder___init__[] = "Decoder('formalism = scfg') -> initialize from configuration string\n        Decoder(formalism='scfg') -> initialize from named parameters\n        Create a decoder using a given configuration. Formalism is required.";
+static int __pyx_pw_4cdec_5_cdec_7Decoder_1__init__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static char __pyx_doc_4cdec_5_cdec_7Decoder___init__[] = "Decoder('formalism = scfg') -> initialize from configuration string\n        Decoder(formalism='scfg') -> initialize from named parameters\n        Create a decoder using a given configuration. Formalism is required.";
 #if CYTHON_COMPILING_IN_CPYTHON
-struct wrapperbase __pyx_wrapperbase_5_cdec_7Decoder___init__;
+struct wrapperbase __pyx_wrapperbase_4cdec_5_cdec_7Decoder___init__;
 #endif
-static int __pyx_pw_5_cdec_7Decoder_1__init__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static int __pyx_pw_4cdec_5_cdec_7Decoder_1__init__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_config_str = 0;
   PyObject *__pyx_v_config = 0;
   int __pyx_lineno = 0;
@@ -18472,7 +18472,7 @@ static int __pyx_pw_5_cdec_7Decoder_1__init__(PyObject *__pyx_v_self, PyObject *
     static PyObject **__pyx_pyargnames[] = {&__pyx_n_s__config_str,0};
     PyObject* values[1] = {0};
 
-    /* "_cdec.pyx":47
+    /* "cdec/_cdec.pyx":47
  *     cdef DenseVector weights
  * 
  *     def __init__(self, config_str=None, **config):             # <<<<<<<<<<<<<<
@@ -18513,18 +18513,18 @@ static int __pyx_pw_5_cdec_7Decoder_1__init__(PyObject *__pyx_v_self, PyObject *
   __Pyx_RaiseArgtupleInvalid("__init__", 0, 0, 1, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 47; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
   __pyx_L3_error:;
   __Pyx_CLEAR(__pyx_v_config);
-  __Pyx_AddTraceback("_cdec.Decoder.__init__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.Decoder.__init__", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
   return -1;
   __pyx_L4_argument_unpacking_done:;
-  __pyx_r = __pyx_pf_5_cdec_7Decoder___init__(((struct __pyx_obj_5_cdec_Decoder *)__pyx_v_self), __pyx_v_config_str, __pyx_v_config);
+  __pyx_r = __pyx_pf_4cdec_5_cdec_7Decoder___init__(((struct __pyx_obj_4cdec_5_cdec_Decoder *)__pyx_v_self), __pyx_v_config_str, __pyx_v_config);
   __Pyx_XDECREF(__pyx_v_config);
   __Pyx_RefNannyFinishContext();
   return __pyx_r;
 }
-static PyObject *__pyx_gb_5_cdec_7Decoder_8__init___2generator21(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
+static PyObject *__pyx_gb_4cdec_5_cdec_7Decoder_8__init___2generator21(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
 
-/* "_cdec.pyx":56
+/* "cdec/_cdec.pyx":56
  *                     'csplit', 'tagger', 'lexalign'):
  *                 raise InvalidConfig('formalism "%s" unknown' % formalism)
  *             config_str = '\n'.join('%s = %s' % kv for kv in _make_config(config))             # <<<<<<<<<<<<<<
@@ -18532,25 +18532,25 @@ static PyObject *__pyx_gb_5_cdec_7Decoder_8__init___2generator21(__pyx_Generator
  *         self.dec = new decoder.Decoder(config_stream)
  */
 
-static PyObject *__pyx_pf_5_cdec_7Decoder_8__init___genexpr(PyObject *__pyx_self) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_25_genexpr *__pyx_cur_scope;
+static PyObject *__pyx_pf_4cdec_5_cdec_7Decoder_8__init___genexpr(PyObject *__pyx_self) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_25_genexpr *__pyx_cur_scope;
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
   int __pyx_lineno = 0;
   const char *__pyx_filename = NULL;
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("genexpr", 0);
-  __pyx_cur_scope = (struct __pyx_obj_5_cdec___pyx_scope_struct_25_genexpr *)__pyx_tp_new_5_cdec___pyx_scope_struct_25_genexpr(__pyx_ptype_5_cdec___pyx_scope_struct_25_genexpr, __pyx_empty_tuple, NULL);
+  __pyx_cur_scope = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_25_genexpr *)__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_25_genexpr(__pyx_ptype_4cdec_5_cdec___pyx_scope_struct_25_genexpr, __pyx_empty_tuple, NULL);
   if (unlikely(!__pyx_cur_scope)) {
     __Pyx_RefNannyFinishContext();
     return NULL;
   }
   __Pyx_GOTREF(__pyx_cur_scope);
-  __pyx_cur_scope->__pyx_outer_scope = (struct __pyx_obj_5_cdec___pyx_scope_struct_24___init__ *) __pyx_self;
+  __pyx_cur_scope->__pyx_outer_scope = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_24___init__ *) __pyx_self;
   __Pyx_INCREF(((PyObject *)__pyx_cur_scope->__pyx_outer_scope));
   __Pyx_GIVEREF(__pyx_cur_scope->__pyx_outer_scope);
   {
-    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_5_cdec_7Decoder_8__init___2generator21, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 56; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_4cdec_5_cdec_7Decoder_8__init___2generator21, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 56; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_cur_scope);
     __Pyx_RefNannyFinishContext();
     return (PyObject *) gen;
@@ -18559,7 +18559,7 @@ static PyObject *__pyx_pf_5_cdec_7Decoder_8__init___genexpr(PyObject *__pyx_self
   __pyx_r = Py_None; __Pyx_INCREF(Py_None);
   goto __pyx_L0;
   __pyx_L1_error:;
-  __Pyx_AddTraceback("_cdec.Decoder.__init__.genexpr", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.Decoder.__init__.genexpr", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __pyx_r = NULL;
   __pyx_L0:;
   __Pyx_DECREF(((PyObject *)__pyx_cur_scope));
@@ -18568,9 +18568,9 @@ static PyObject *__pyx_pf_5_cdec_7Decoder_8__init___genexpr(PyObject *__pyx_self
   return __pyx_r;
 }
 
-static PyObject *__pyx_gb_5_cdec_7Decoder_8__init___2generator21(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
+static PyObject *__pyx_gb_4cdec_5_cdec_7Decoder_8__init___2generator21(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
 {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_25_genexpr *__pyx_cur_scope = ((struct __pyx_obj_5_cdec___pyx_scope_struct_25_genexpr *)__pyx_generator->closure);
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_25_genexpr *__pyx_cur_scope = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_25_genexpr *)__pyx_generator->closure);
   PyObject *__pyx_r = NULL;
   PyObject *__pyx_t_1 = NULL;
   PyObject *__pyx_t_2 = NULL;
@@ -18643,7 +18643,7 @@ static PyObject *__pyx_gb_5_cdec_7Decoder_8__init___2generator21(__pyx_Generator
     __Pyx_GIVEREF(__pyx_t_3);
     __pyx_cur_scope->__pyx_v_kv = __pyx_t_3;
     __pyx_t_3 = 0;
-    __pyx_t_3 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_46), __pyx_cur_scope->__pyx_v_kv); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 56; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_47), __pyx_cur_scope->__pyx_v_kv); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 56; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(((PyObject *)__pyx_t_3));
     __pyx_r = ((PyObject *)__pyx_t_3);
     __pyx_t_3 = 0;
@@ -18680,7 +18680,7 @@ static PyObject *__pyx_gb_5_cdec_7Decoder_8__init___2generator21(__pyx_Generator
   return NULL;
 }
 
-/* "_cdec.pyx":47
+/* "cdec/_cdec.pyx":47
  *     cdef DenseVector weights
  * 
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@@ -18688,8 +18688,8 @@ static PyObject *__pyx_gb_5_cdec_7Decoder_8__init___2generator21(__pyx_Generator
  *         Decoder(formalism='scfg') -> initialize from named parameters
  */
 
-static int __pyx_pf_5_cdec_7Decoder___init__(struct __pyx_obj_5_cdec_Decoder *__pyx_v_self, PyObject *__pyx_v_config_str, PyObject *__pyx_v_config) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_24___init__ *__pyx_cur_scope;
+static int __pyx_pf_4cdec_5_cdec_7Decoder___init__(struct __pyx_obj_4cdec_5_cdec_Decoder *__pyx_v_self, PyObject *__pyx_v_config_str, PyObject *__pyx_v_config) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_24___init__ *__pyx_cur_scope;
   PyObject *__pyx_v_formalism = NULL;
   std::istringstream *__pyx_v_config_stream;
   int __pyx_r;
@@ -18705,7 +18705,7 @@ static int __pyx_pf_5_cdec_7Decoder___init__(struct __pyx_obj_5_cdec_Decoder *__
   const char *__pyx_filename = NULL;
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__init__", 0);
-  __pyx_cur_scope = (struct __pyx_obj_5_cdec___pyx_scope_struct_24___init__ *)__pyx_tp_new_5_cdec___pyx_scope_struct_24___init__(__pyx_ptype_5_cdec___pyx_scope_struct_24___init__, __pyx_empty_tuple, NULL);
+  __pyx_cur_scope = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_24___init__ *)__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_24___init__(__pyx_ptype_4cdec_5_cdec___pyx_scope_struct_24___init__, __pyx_empty_tuple, NULL);
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     return -1;
@@ -18716,7 +18716,7 @@ static int __pyx_pf_5_cdec_7Decoder___init__(struct __pyx_obj_5_cdec_Decoder *__
   __Pyx_GIVEREF(__pyx_cur_scope->__pyx_v_config);
   __Pyx_INCREF(__pyx_v_config_str);
 
-  /* "_cdec.pyx":51
+  /* "cdec/_cdec.pyx":51
  *         Decoder(formalism='scfg') -> initialize from named parameters
  *         Create a decoder using a given configuration. Formalism is required."""
  *         if config_str is None:             # <<<<<<<<<<<<<<
@@ -18727,7 +18727,7 @@ static int __pyx_pf_5_cdec_7Decoder___init__(struct __pyx_obj_5_cdec_Decoder *__
   __pyx_t_2 = (__pyx_t_1 != 0);
   if (__pyx_t_2) {
 
-    /* "_cdec.pyx":52
+    /* "cdec/_cdec.pyx":52
  *         Create a decoder using a given configuration. Formalism is required."""
  *         if config_str is None:
  *             formalism = config.get('formalism', None)             # <<<<<<<<<<<<<<
@@ -18739,7 +18739,7 @@ static int __pyx_pf_5_cdec_7Decoder___init__(struct __pyx_obj_5_cdec_Decoder *__
     __pyx_v_formalism = __pyx_t_3;
     __pyx_t_3 = 0;
 
-    /* "_cdec.pyx":53
+    /* "cdec/_cdec.pyx":53
  *         if config_str is None:
  *             formalism = config.get('formalism', None)
  *             if formalism not in ('scfg', 'fst', 'lextrans', 'pb',             # <<<<<<<<<<<<<<
@@ -18803,7 +18803,7 @@ static int __pyx_pf_5_cdec_7Decoder___init__(struct __pyx_obj_5_cdec_Decoder *__
     __pyx_t_1 = (__pyx_t_2 != 0);
     if (__pyx_t_1) {
 
-      /* "_cdec.pyx":55
+      /* "cdec/_cdec.pyx":55
  *             if formalism not in ('scfg', 'fst', 'lextrans', 'pb',
  *                     'csplit', 'tagger', 'lexalign'):
  *                 raise InvalidConfig('formalism "%s" unknown' % formalism)             # <<<<<<<<<<<<<<
@@ -18812,7 +18812,7 @@ static int __pyx_pf_5_cdec_7Decoder___init__(struct __pyx_obj_5_cdec_Decoder *__
  */
       __pyx_t_3 = __Pyx_GetModuleGlobalName(__pyx_n_s__InvalidConfig); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 55; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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+      __pyx_t_4 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_48), __pyx_v_formalism); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 55; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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@@ -18830,16 +18830,16 @@ static int __pyx_pf_5_cdec_7Decoder___init__(struct __pyx_obj_5_cdec_Decoder *__
     }
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-    /* "_cdec.pyx":56
+    /* "cdec/_cdec.pyx":56
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  *             config_str = '\n'.join('%s = %s' % kv for kv in _make_config(config))             # <<<<<<<<<<<<<<
  *         cdef istringstream* config_stream = new istringstream(config_str)
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-    __pyx_t_4 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_kp_s_39), __pyx_n_s__join); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 56; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_kp_s_40), __pyx_n_s__join); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 56; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-    __pyx_t_6 = __pyx_pf_5_cdec_7Decoder_8__init___genexpr(((PyObject*)__pyx_cur_scope)); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 56; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = __pyx_pf_4cdec_5_cdec_7Decoder_8__init___genexpr(((PyObject*)__pyx_cur_scope)); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 56; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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@@ -18857,7 +18857,7 @@ static int __pyx_pf_5_cdec_7Decoder___init__(struct __pyx_obj_5_cdec_Decoder *__
   }
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-  /* "_cdec.pyx":57
+  /* "cdec/_cdec.pyx":57
  *                 raise InvalidConfig('formalism "%s" unknown' % formalism)
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  *         cdef istringstream* config_stream = new istringstream(config_str)             # <<<<<<<<<<<<<<
@@ -18867,7 +18867,7 @@ static int __pyx_pf_5_cdec_7Decoder___init__(struct __pyx_obj_5_cdec_Decoder *__
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   __pyx_v_config_stream = new std::istringstream(__pyx_t_7);
 
-  /* "_cdec.pyx":58
+  /* "cdec/_cdec.pyx":58
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@@ -18876,7 +18876,7 @@ static int __pyx_pf_5_cdec_7Decoder___init__(struct __pyx_obj_5_cdec_Decoder *__
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-  /* "_cdec.pyx":59
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  *         self.dec = new decoder.Decoder(config_stream)
  *         del config_stream             # <<<<<<<<<<<<<<
@@ -18885,23 +18885,23 @@ static int __pyx_pf_5_cdec_7Decoder___init__(struct __pyx_obj_5_cdec_Decoder *__
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-  /* "_cdec.pyx":60
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  *         self.weights = DenseVector.__new__(DenseVector)             # <<<<<<<<<<<<<<
  *         self.weights.vector = &self.dec.CurrentWeightVector()
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+  __pyx_t_6 = __pyx_tp_new_4cdec_5_cdec_DenseVector(((PyTypeObject *)((PyObject*)__pyx_ptype_4cdec_5_cdec_DenseVector)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 60; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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+  if (!(likely(__Pyx_TypeTest(__pyx_t_6, __pyx_ptype_4cdec_5_cdec_DenseVector)))) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 60; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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   __Pyx_DECREF(((PyObject *)__pyx_v_self->weights));
-  __pyx_v_self->weights = ((struct __pyx_obj_5_cdec_DenseVector *)__pyx_t_6);
+  __pyx_v_self->weights = ((struct __pyx_obj_4cdec_5_cdec_DenseVector *)__pyx_t_6);
   __pyx_t_6 = 0;
 
-  /* "_cdec.pyx":61
+  /* "cdec/_cdec.pyx":61
  *         del config_stream
  *         self.weights = DenseVector.__new__(DenseVector)
  *         self.weights.vector = &self.dec.CurrentWeightVector()             # <<<<<<<<<<<<<<
@@ -18910,7 +18910,7 @@ static int __pyx_pf_5_cdec_7Decoder___init__(struct __pyx_obj_5_cdec_Decoder *__
  */
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-  /* "_cdec.pyx":62
+  /* "cdec/_cdec.pyx":62
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  *         self.weights.owned = True             # <<<<<<<<<<<<<<
@@ -18925,7 +18925,7 @@ static int __pyx_pf_5_cdec_7Decoder___init__(struct __pyx_obj_5_cdec_Decoder *__
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   __Pyx_XDECREF(__pyx_t_6);
-  __Pyx_AddTraceback("_cdec.Decoder.__init__", __pyx_clineno, __pyx_lineno, __pyx_filename);
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@@ -18936,15 +18936,15 @@ static int __pyx_pf_5_cdec_7Decoder___init__(struct __pyx_obj_5_cdec_Decoder *__
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 /* Python wrapper */
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-static void __pyx_pw_5_cdec_7Decoder_3__dealloc__(PyObject *__pyx_v_self) {
+static void __pyx_pw_4cdec_5_cdec_7Decoder_3__dealloc__(PyObject *__pyx_v_self); /*proto*/
+static void __pyx_pw_4cdec_5_cdec_7Decoder_3__dealloc__(PyObject *__pyx_v_self) {
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-/* "_cdec.pyx":64
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  * 
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-static void __pyx_pf_5_cdec_7Decoder_2__dealloc__(CYTHON_UNUSED struct __pyx_obj_5_cdec_Decoder *__pyx_v_self) {
+static void __pyx_pf_4cdec_5_cdec_7Decoder_2__dealloc__(CYTHON_UNUSED struct __pyx_obj_4cdec_5_cdec_Decoder *__pyx_v_self) {
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-  /* "_cdec.pyx":65
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@@ -18969,17 +18969,17 @@ static void __pyx_pf_5_cdec_7Decoder_2__dealloc__(CYTHON_UNUSED struct __pyx_obj
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 /* Python wrapper */
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-static PyObject *__pyx_pw_5_cdec_7Decoder_7weights_1__get__(PyObject *__pyx_v_self) {
+static PyObject *__pyx_pw_4cdec_5_cdec_7Decoder_7weights_1__get__(PyObject *__pyx_v_self); /*proto*/
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+  __pyx_r = __pyx_pf_4cdec_5_cdec_7Decoder_7weights___get__(((struct __pyx_obj_4cdec_5_cdec_Decoder *)__pyx_v_self));
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-static PyObject *__pyx_pf_5_cdec_7Decoder_7weights___get__(struct __pyx_obj_5_cdec_Decoder *__pyx_v_self) {
+static PyObject *__pyx_pf_4cdec_5_cdec_7Decoder_7weights___get__(struct __pyx_obj_4cdec_5_cdec_Decoder *__pyx_v_self) {
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-  /* "_cdec.pyx":69
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 /* Python wrapper */
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-static int __pyx_pw_5_cdec_7Decoder_7weights_3__set__(PyObject *__pyx_v_self, PyObject *__pyx_v_weights) {
+static int __pyx_pw_4cdec_5_cdec_7Decoder_7weights_3__set__(PyObject *__pyx_v_self, PyObject *__pyx_v_weights); /*proto*/
+static int __pyx_pw_4cdec_5_cdec_7Decoder_7weights_3__set__(PyObject *__pyx_v_self, PyObject *__pyx_v_weights) {
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+  __pyx_r = __pyx_pf_4cdec_5_cdec_7Decoder_7weights_2__set__(((struct __pyx_obj_4cdec_5_cdec_Decoder *)__pyx_v_self), ((PyObject *)__pyx_v_weights));
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-static int __pyx_pf_5_cdec_7Decoder_7weights_2__set__(struct __pyx_obj_5_cdec_Decoder *__pyx_v_self, PyObject *__pyx_v_weights) {
+static int __pyx_pf_4cdec_5_cdec_7Decoder_7weights_2__set__(struct __pyx_obj_4cdec_5_cdec_Decoder *__pyx_v_self, PyObject *__pyx_v_weights) {
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-    /* "_cdec.pyx":73
+    /* "cdec/_cdec.pyx":73
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-    (__pyx_v_self->weights->vector[0]) = (((struct __pyx_obj_5_cdec_DenseVector *)__pyx_v_weights)->vector[0]);
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-  /* "_cdec.pyx":74
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  *             elif isinstance(weights, dict):
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-  __pyx_t_2 = __Pyx_TypeCheck(__pyx_v_weights, ((PyObject*)__pyx_ptype_5_cdec_SparseVector)); 
+  __pyx_t_2 = __Pyx_TypeCheck(__pyx_v_weights, ((PyObject*)__pyx_ptype_4cdec_5_cdec_SparseVector)); 
   __pyx_t_1 = (__pyx_t_2 != 0);
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-    /* "_cdec.pyx":75
+    /* "cdec/_cdec.pyx":75
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-    (((struct __pyx_obj_5_cdec_SparseVector *)__pyx_v_weights)->vector[0]).init_vector(__pyx_v_self->weights->vector);
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-  /* "_cdec.pyx":76
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-    /* "_cdec.pyx":77
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-    /* "_cdec.pyx":78
+    /* "cdec/_cdec.pyx":78
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  *     property formalism:
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+    __pyx_t_3 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_49), ((PyObject *)Py_TYPE(__pyx_v_weights))); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 81; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-static PyObject *__pyx_pf_5_cdec_7Decoder_9formalism___get__(struct __pyx_obj_5_cdec_Decoder *__pyx_v_self) {
+static PyObject *__pyx_pf_4cdec_5_cdec_7Decoder_9formalism___get__(struct __pyx_obj_4cdec_5_cdec_Decoder *__pyx_v_self) {
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-  /* "_cdec.pyx":86
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 /* Python wrapper */
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-static PyObject *__pyx_pw_5_cdec_7Decoder_5read_weights(PyObject *__pyx_v_self, PyObject *__pyx_v_weights) {
+static PyObject *__pyx_pw_4cdec_5_cdec_7Decoder_5read_weights(PyObject *__pyx_v_self, PyObject *__pyx_v_weights); /*proto*/
+static char __pyx_doc_4cdec_5_cdec_7Decoder_4read_weights[] = "decoder.read_weights(filename): Read decoder weights from a file.";
+static PyObject *__pyx_pw_4cdec_5_cdec_7Decoder_5read_weights(PyObject *__pyx_v_self, PyObject *__pyx_v_weights) {
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+  __pyx_r = __pyx_pf_4cdec_5_cdec_7Decoder_4read_weights(((struct __pyx_obj_4cdec_5_cdec_Decoder *)__pyx_v_self), ((PyObject *)__pyx_v_weights));
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-static PyObject *__pyx_pf_5_cdec_7Decoder_4read_weights(struct __pyx_obj_5_cdec_Decoder *__pyx_v_self, PyObject *__pyx_v_weights) {
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-          /* "_cdec.pyx":91
+          /* "cdec/_cdec.pyx":91
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-            /* "_cdec.pyx":92
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-            /* "_cdec.pyx":93
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-            /* "_cdec.pyx":94
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-        /* "_cdec.pyx":90
+        /* "cdec/_cdec.pyx":90
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 /* Python wrapper */
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-static PyObject *__pyx_pw_5_cdec_7Decoder_7translate(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static PyObject *__pyx_pw_4cdec_5_cdec_7Decoder_7translate(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
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+static PyObject *__pyx_pw_4cdec_5_cdec_7Decoder_7translate(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
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-    /* "_cdec.pyx":96
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+static PyObject *__pyx_pf_4cdec_5_cdec_7Decoder_6translate(struct __pyx_obj_4cdec_5_cdec_Decoder *__pyx_v_self, PyObject *__pyx_v_sentence, PyObject *__pyx_v_grammar) {
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-    /* "_cdec.pyx":101
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-  /* "_cdec.pyx":102
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-    /* "_cdec.pyx":103
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-      /* "_cdec.pyx":108
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  *             else:
  *                 self.dec.AddSupplementalGrammar(TextGrammar(grammar).grammar[0])             # <<<<<<<<<<<<<<
@@ -19927,10 +19927,10 @@ static PyObject *__pyx_pf_5_cdec_7Decoder_6translate(struct __pyx_obj_5_cdec_Dec
       __Pyx_INCREF(__pyx_v_grammar);
       PyTuple_SET_ITEM(__pyx_t_4, 0, __pyx_v_grammar);
       __Pyx_GIVEREF(__pyx_v_grammar);
-      __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_5_cdec_TextGrammar)), ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 110; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_5_cdec_TextGrammar)), ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 110; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
-      __pyx_v_self->dec->AddSupplementalGrammar((((struct __pyx_obj_5_cdec_TextGrammar *)__pyx_t_3)->__pyx_base.grammar[0]));
+      __pyx_v_self->dec->AddSupplementalGrammar((((struct __pyx_obj_4cdec_5_cdec_TextGrammar *)__pyx_t_3)->__pyx_base.grammar[0]));
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     }
     __pyx_L5:;
@@ -19938,7 +19938,7 @@ static PyObject *__pyx_pf_5_cdec_7Decoder_6translate(struct __pyx_obj_5_cdec_Dec
   }
   __pyx_L4:;
 
-  /* "_cdec.pyx":111
+  /* "cdec/_cdec.pyx":111
  *             else:
  *                 self.dec.AddSupplementalGrammar(TextGrammar(grammar).grammar[0])
  *         cdef decoder.BasicObserver observer = decoder.BasicObserver()             # <<<<<<<<<<<<<<
@@ -19947,7 +19947,7 @@ static PyObject *__pyx_pf_5_cdec_7Decoder_6translate(struct __pyx_obj_5_cdec_Dec
  */
   __pyx_v_observer = BasicObserver();
 
-  /* "_cdec.pyx":112
+  /* "cdec/_cdec.pyx":112
  *                 self.dec.AddSupplementalGrammar(TextGrammar(grammar).grammar[0])
  *         cdef decoder.BasicObserver observer = decoder.BasicObserver()
  *         self.dec.Decode(input_str, &observer)             # <<<<<<<<<<<<<<
@@ -19957,7 +19957,7 @@ static PyObject *__pyx_pf_5_cdec_7Decoder_6translate(struct __pyx_obj_5_cdec_Dec
   __pyx_t_5 = __pyx_convert_string_from_py_(((PyObject *)__pyx_v_input_str)); if (unlikely(PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 112; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_v_self->dec->Decode(__pyx_t_5, (&__pyx_v_observer));
 
-  /* "_cdec.pyx":113
+  /* "cdec/_cdec.pyx":113
  *         cdef decoder.BasicObserver observer = decoder.BasicObserver()
  *         self.dec.Decode(input_str, &observer)
  *         if observer.hypergraph == NULL:             # <<<<<<<<<<<<<<
@@ -19967,7 +19967,7 @@ static PyObject *__pyx_pf_5_cdec_7Decoder_6translate(struct __pyx_obj_5_cdec_Dec
   __pyx_t_2 = ((__pyx_v_observer.hypergraph == NULL) != 0);
   if (__pyx_t_2) {
 
-    /* "_cdec.pyx":114
+    /* "cdec/_cdec.pyx":114
  *         self.dec.Decode(input_str, &observer)
  *         if observer.hypergraph == NULL:
  *             raise ParseFailed()             # <<<<<<<<<<<<<<
@@ -19986,19 +19986,19 @@ static PyObject *__pyx_pf_5_cdec_7Decoder_6translate(struct __pyx_obj_5_cdec_Dec
   }
   __pyx_L6:;
 
-  /* "_cdec.pyx":115
+  /* "cdec/_cdec.pyx":115
  *         if observer.hypergraph == NULL:
  *             raise ParseFailed()
  *         cdef Hypergraph hg = Hypergraph()             # <<<<<<<<<<<<<<
  *         hg.hg = new hypergraph.Hypergraph(observer.hypergraph[0])
  *         return hg
  */
-  __pyx_t_4 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_5_cdec_Hypergraph)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 115; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_4 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_5_cdec_Hypergraph)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 115; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_4);
-  __pyx_v_hg = ((struct __pyx_obj_5_cdec_Hypergraph *)__pyx_t_4);
+  __pyx_v_hg = ((struct __pyx_obj_4cdec_5_cdec_Hypergraph *)__pyx_t_4);
   __pyx_t_4 = 0;
 
-  /* "_cdec.pyx":116
+  /* "cdec/_cdec.pyx":116
  *             raise ParseFailed()
  *         cdef Hypergraph hg = Hypergraph()
  *         hg.hg = new hypergraph.Hypergraph(observer.hypergraph[0])             # <<<<<<<<<<<<<<
@@ -20006,7 +20006,7 @@ static PyObject *__pyx_pf_5_cdec_7Decoder_6translate(struct __pyx_obj_5_cdec_Dec
  */
   __pyx_v_hg->hg = new Hypergraph((__pyx_v_observer.hypergraph[0]));
 
-  /* "_cdec.pyx":117
+  /* "cdec/_cdec.pyx":117
  *         cdef Hypergraph hg = Hypergraph()
  *         hg.hg = new hypergraph.Hypergraph(observer.hypergraph[0])
  *         return hg             # <<<<<<<<<<<<<<
@@ -20021,7 +20021,7 @@ static PyObject *__pyx_pf_5_cdec_7Decoder_6translate(struct __pyx_obj_5_cdec_Dec
   __pyx_L1_error:;
   __Pyx_XDECREF(__pyx_t_3);
   __Pyx_XDECREF(__pyx_t_4);
-  __Pyx_AddTraceback("_cdec.Decoder.translate", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("cdec._cdec.Decoder.translate", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __pyx_r = NULL;
   __pyx_L0:;
   __Pyx_XDECREF(__pyx_v_input_str);
@@ -20070,22 +20070,19 @@ static std::string __pyx_convert_string_from_py_(PyObject *__pyx_v_o) {
   return __pyx_r;
 }
 
-static PyObject *__pyx_tp_new_5_cdec_Scorer(PyTypeObject *t, PyObject *a, PyObject *k) {
+static PyObject *__pyx_tp_new_4cdec_5_cdec_TRule(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
   PyObject *o;
   o = (*t->tp_alloc)(t, 0);
   if (unlikely(!o)) return 0;
-  if (unlikely(__pyx_pw_5_cdec_6Scorer_1__cinit__(o, a, k) < 0)) {
-    Py_DECREF(o); o = 0;
-  }
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec_Scorer(PyObject *o) {
+static void __pyx_tp_dealloc_4cdec_5_cdec_TRule(PyObject *o) {
   {
     PyObject *etype, *eval, *etb;
     PyErr_Fetch(&etype, &eval, &etb);
     ++Py_REFCNT(o);
-    __pyx_pw_5_cdec_6Scorer_3__dealloc__(o);
+    __pyx_pw_4cdec_5_cdec_5TRule_3__dealloc__(o);
     if (PyErr_Occurred()) PyErr_WriteUnraisable(o);
     --Py_REFCNT(o);
     PyErr_Restore(etype, eval, etb);
@@ -20093,125 +20090,100 @@ static void __pyx_tp_dealloc_5_cdec_Scorer(PyObject *o) {
   (*Py_TYPE(o)->tp_free)(o);
 }
 
-static PyMethodDef __pyx_methods_5_cdec_Scorer[] = {
-  {0, 0, 0, 0}
-};
+static PyObject *__pyx_getprop_4cdec_5_cdec_5TRule_arity(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_4cdec_5_cdec_5TRule_5arity_1__get__(o);
+}
 
-static PyTypeObject __pyx_type_5_cdec_Scorer = {
-  PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.Scorer"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec_Scorer), /*tp_basicsize*/
-  0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec_Scorer, /*tp_dealloc*/
-  0, /*tp_print*/
-  0, /*tp_getattr*/
-  0, /*tp_setattr*/
-  #if PY_MAJOR_VERSION < 3
-  0, /*tp_compare*/
-  #else
-  0, /*reserved*/
-  #endif
-  0, /*tp_repr*/
-  0, /*tp_as_number*/
-  0, /*tp_as_sequence*/
-  0, /*tp_as_mapping*/
-  0, /*tp_hash*/
-  __pyx_pw_5_cdec_6Scorer_5__call__, /*tp_call*/
-  __pyx_pw_5_cdec_6Scorer_7__str__, /*tp_str*/
-  0, /*tp_getattro*/
-  0, /*tp_setattro*/
-  0, /*tp_as_buffer*/
-  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE, /*tp_flags*/
-  0, /*tp_doc*/
-  0, /*tp_traverse*/
-  0, /*tp_clear*/
-  0, /*tp_richcompare*/
-  0, /*tp_weaklistoffset*/
-  0, /*tp_iter*/
-  0, /*tp_iternext*/
-  __pyx_methods_5_cdec_Scorer, /*tp_methods*/
-  0, /*tp_members*/
-  0, /*tp_getset*/
-  0, /*tp_base*/
-  0, /*tp_dict*/
-  0, /*tp_descr_get*/
-  0, /*tp_descr_set*/
-  0, /*tp_dictoffset*/
-  0, /*tp_init*/
-  0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec_Scorer, /*tp_new*/
-  0, /*tp_free*/
-  0, /*tp_is_gc*/
-  0, /*tp_bases*/
-  0, /*tp_mro*/
-  0, /*tp_cache*/
-  0, /*tp_subclasses*/
-  0, /*tp_weaklist*/
-  0, /*tp_del*/
-  #if PY_VERSION_HEX >= 0x02060000
-  0, /*tp_version_tag*/
-  #endif
-};
+static PyObject *__pyx_getprop_4cdec_5_cdec_5TRule_f(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_4cdec_5_cdec_5TRule_1f_1__get__(o);
+}
 
-static struct __pyx_obj_5_cdec___pyx_scope_struct_24___init__ *__pyx_freelist_5_cdec___pyx_scope_struct_24___init__[8];
-static int __pyx_freecount_5_cdec___pyx_scope_struct_24___init__ = 0;
+static int __pyx_setprop_4cdec_5_cdec_5TRule_f(PyObject *o, PyObject *v, CYTHON_UNUSED void *x) {
+  if (v) {
+    return __pyx_pw_4cdec_5_cdec_5TRule_1f_3__set__(o, v);
+  }
+  else {
+    PyErr_SetString(PyExc_NotImplementedError, "__del__");
+    return -1;
+  }
+}
 
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_24___init__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_24___init__ *p;
-  PyObject *o;
-  if (likely((__pyx_freecount_5_cdec___pyx_scope_struct_24___init__ > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_24___init__)))) {
-    o = (PyObject*)__pyx_freelist_5_cdec___pyx_scope_struct_24___init__[--__pyx_freecount_5_cdec___pyx_scope_struct_24___init__];
-    memset(o, 0, sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_24___init__));
-    PyObject_INIT(o, t);
-    PyObject_GC_Track(o);
-  } else {
-    o = (*t->tp_alloc)(t, 0);
-    if (unlikely(!o)) return 0;
+static PyObject *__pyx_getprop_4cdec_5_cdec_5TRule_e(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_4cdec_5_cdec_5TRule_1e_1__get__(o);
+}
+
+static int __pyx_setprop_4cdec_5_cdec_5TRule_e(PyObject *o, PyObject *v, CYTHON_UNUSED void *x) {
+  if (v) {
+    return __pyx_pw_4cdec_5_cdec_5TRule_1e_3__set__(o, v);
+  }
+  else {
+    PyErr_SetString(PyExc_NotImplementedError, "__del__");
+    return -1;
   }
-  p = ((struct __pyx_obj_5_cdec___pyx_scope_struct_24___init__ *)o);
-  p->__pyx_v_config = 0;
-  return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec___pyx_scope_struct_24___init__(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_24___init__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_24___init__ *)o;
-  PyObject_GC_UnTrack(o);
-  Py_CLEAR(p->__pyx_v_config);
-  if ((__pyx_freecount_5_cdec___pyx_scope_struct_24___init__ < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_24___init__))) {
-    __pyx_freelist_5_cdec___pyx_scope_struct_24___init__[__pyx_freecount_5_cdec___pyx_scope_struct_24___init__++] = ((struct __pyx_obj_5_cdec___pyx_scope_struct_24___init__ *)o);
-  } else {
-    (*Py_TYPE(o)->tp_free)(o);
+static PyObject *__pyx_getprop_4cdec_5_cdec_5TRule_a(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_4cdec_5_cdec_5TRule_1a_1__get__(o);
+}
+
+static int __pyx_setprop_4cdec_5_cdec_5TRule_a(PyObject *o, PyObject *v, CYTHON_UNUSED void *x) {
+  if (v) {
+    return __pyx_pw_4cdec_5_cdec_5TRule_1a_4__set__(o, v);
+  }
+  else {
+    PyErr_SetString(PyExc_NotImplementedError, "__del__");
+    return -1;
   }
 }
 
-static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_24___init__(PyObject *o, visitproc v, void *a) {
-  int e;
-  struct __pyx_obj_5_cdec___pyx_scope_struct_24___init__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_24___init__ *)o;
-  if (p->__pyx_v_config) {
-    e = (*v)(p->__pyx_v_config, a); if (e) return e;
+static PyObject *__pyx_getprop_4cdec_5_cdec_5TRule_scores(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_4cdec_5_cdec_5TRule_6scores_1__get__(o);
+}
+
+static int __pyx_setprop_4cdec_5_cdec_5TRule_scores(PyObject *o, PyObject *v, CYTHON_UNUSED void *x) {
+  if (v) {
+    return __pyx_pw_4cdec_5_cdec_5TRule_6scores_3__set__(o, v);
+  }
+  else {
+    PyErr_SetString(PyExc_NotImplementedError, "__del__");
+    return -1;
   }
-  return 0;
 }
 
-static int __pyx_tp_clear_5_cdec___pyx_scope_struct_24___init__(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_24___init__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_24___init__ *)o;
-  PyObject* tmp;
-  tmp = ((PyObject*)p->__pyx_v_config);
-  p->__pyx_v_config = ((PyObject*)Py_None); Py_INCREF(Py_None);
-  Py_XDECREF(tmp);
-  return 0;
+static PyObject *__pyx_getprop_4cdec_5_cdec_5TRule_lhs(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_4cdec_5_cdec_5TRule_3lhs_1__get__(o);
+}
+
+static int __pyx_setprop_4cdec_5_cdec_5TRule_lhs(PyObject *o, PyObject *v, CYTHON_UNUSED void *x) {
+  if (v) {
+    return __pyx_pw_4cdec_5_cdec_5TRule_3lhs_3__set__(o, v);
+  }
+  else {
+    PyErr_SetString(PyExc_NotImplementedError, "__del__");
+    return -1;
+  }
 }
 
-static PyMethodDef __pyx_methods_5_cdec___pyx_scope_struct_24___init__[] = {
+static PyMethodDef __pyx_methods_4cdec_5_cdec_TRule[] = {
   {0, 0, 0, 0}
 };
 
-static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_24___init__ = {
+static struct PyGetSetDef __pyx_getsets_4cdec_5_cdec_TRule[] = {
+  {(char *)"arity", __pyx_getprop_4cdec_5_cdec_5TRule_arity, 0, 0, 0},
+  {(char *)"f", __pyx_getprop_4cdec_5_cdec_5TRule_f, __pyx_setprop_4cdec_5_cdec_5TRule_f, 0, 0},
+  {(char *)"e", __pyx_getprop_4cdec_5_cdec_5TRule_e, __pyx_setprop_4cdec_5_cdec_5TRule_e, 0, 0},
+  {(char *)"a", __pyx_getprop_4cdec_5_cdec_5TRule_a, __pyx_setprop_4cdec_5_cdec_5TRule_a, 0, 0},
+  {(char *)"scores", __pyx_getprop_4cdec_5_cdec_5TRule_scores, __pyx_setprop_4cdec_5_cdec_5TRule_scores, 0, 0},
+  {(char *)"lhs", __pyx_getprop_4cdec_5_cdec_5TRule_lhs, __pyx_setprop_4cdec_5_cdec_5TRule_lhs, 0, 0},
+  {0, 0, 0, 0, 0}
+};
+
+static PyTypeObject __pyx_type_4cdec_5_cdec_TRule = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.__pyx_scope_struct_24___init__"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_24___init__), /*tp_basicsize*/
+  __Pyx_NAMESTR("cdec._cdec.TRule"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec_TRule), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec___pyx_scope_struct_24___init__, /*tp_dealloc*/
+  __pyx_tp_dealloc_4cdec_5_cdec_TRule, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -20226,29 +20198,29 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_24___init__ = {
   0, /*tp_as_mapping*/
   0, /*tp_hash*/
   0, /*tp_call*/
-  0, /*tp_str*/
+  __pyx_pw_4cdec_5_cdec_5TRule_5__str__, /*tp_str*/
   0, /*tp_getattro*/
   0, /*tp_setattro*/
   0, /*tp_as_buffer*/
-  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_5_cdec___pyx_scope_struct_24___init__, /*tp_traverse*/
-  __pyx_tp_clear_5_cdec___pyx_scope_struct_24___init__, /*tp_clear*/
+  0, /*tp_traverse*/
+  0, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec___pyx_scope_struct_24___init__, /*tp_methods*/
+  __pyx_methods_4cdec_5_cdec_TRule, /*tp_methods*/
   0, /*tp_members*/
-  0, /*tp_getset*/
+  __pyx_getsets_4cdec_5_cdec_TRule, /*tp_getset*/
   0, /*tp_base*/
   0, /*tp_dict*/
   0, /*tp_descr_get*/
   0, /*tp_descr_set*/
   0, /*tp_dictoffset*/
-  0, /*tp_init*/
+  __pyx_pw_4cdec_5_cdec_5TRule_1__init__, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec___pyx_scope_struct_24___init__, /*tp_new*/
+  __pyx_tp_new_4cdec_5_cdec_TRule, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -20262,46 +20234,22 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_24___init__ = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec_NTRef(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  PyObject *o;
-  o = (*t->tp_alloc)(t, 0);
+static PyObject *__pyx_tp_new_4cdec_5_cdec_MRule(PyTypeObject *t, PyObject *a, PyObject *k) {
+  PyObject *o = __pyx_tp_new_4cdec_5_cdec_TRule(t, a, k);
   if (unlikely(!o)) return 0;
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec_NTRef(PyObject *o) {
-  (*Py_TYPE(o)->tp_free)(o);
-}
-
-static PyObject *__pyx_getprop_5_cdec_5NTRef_ref(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_5_cdec_5NTRef_3ref_1__get__(o);
-}
-
-static int __pyx_setprop_5_cdec_5NTRef_ref(PyObject *o, PyObject *v, CYTHON_UNUSED void *x) {
-  if (v) {
-    return __pyx_pw_5_cdec_5NTRef_3ref_3__set__(o, v);
-  }
-  else {
-    PyErr_SetString(PyExc_NotImplementedError, "__del__");
-    return -1;
-  }
-}
-
-static PyMethodDef __pyx_methods_5_cdec_NTRef[] = {
+static PyMethodDef __pyx_methods_4cdec_5_cdec_MRule[] = {
   {0, 0, 0, 0}
 };
 
-static struct PyGetSetDef __pyx_getsets_5_cdec_NTRef[] = {
-  {(char *)"ref", __pyx_getprop_5_cdec_5NTRef_ref, __pyx_setprop_5_cdec_5NTRef_ref, 0, 0},
-  {0, 0, 0, 0, 0}
-};
-
-static PyTypeObject __pyx_type_5_cdec_NTRef = {
+static PyTypeObject __pyx_type_4cdec_5_cdec_MRule = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.NTRef"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec_NTRef), /*tp_basicsize*/
+  __Pyx_NAMESTR("cdec._cdec.MRule"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec_MRule), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec_NTRef, /*tp_dealloc*/
+  __pyx_tp_dealloc_4cdec_5_cdec_TRule, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -20316,7 +20264,11 @@ static PyTypeObject __pyx_type_5_cdec_NTRef = {
   0, /*tp_as_mapping*/
   0, /*tp_hash*/
   0, /*tp_call*/
-  __pyx_pw_5_cdec_5NTRef_3__str__, /*tp_str*/
+  #if CYTHON_COMPILING_IN_PYPY
+  __pyx_pw_4cdec_5_cdec_5TRule_5__str__, /*tp_str*/
+  #else
+  0, /*tp_str*/
+  #endif
   0, /*tp_getattro*/
   0, /*tp_setattro*/
   0, /*tp_as_buffer*/
@@ -20328,17 +20280,17 @@ static PyTypeObject __pyx_type_5_cdec_NTRef = {
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec_NTRef, /*tp_methods*/
+  __pyx_methods_4cdec_5_cdec_MRule, /*tp_methods*/
   0, /*tp_members*/
-  __pyx_getsets_5_cdec_NTRef, /*tp_getset*/
+  0, /*tp_getset*/
   0, /*tp_base*/
   0, /*tp_dict*/
   0, /*tp_descr_get*/
   0, /*tp_descr_set*/
   0, /*tp_dictoffset*/
-  __pyx_pw_5_cdec_5NTRef_1__init__, /*tp_init*/
+  __pyx_pw_4cdec_5_cdec_5MRule_1__init__, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec_NTRef, /*tp_new*/
+  __pyx_tp_new_4cdec_5_cdec_MRule, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -20352,65 +20304,65 @@ static PyTypeObject __pyx_type_5_cdec_NTRef = {
   #endif
 };
 
-static struct __pyx_obj_5_cdec___pyx_scope_struct_22___iter__ *__pyx_freelist_5_cdec___pyx_scope_struct_22___iter__[8];
-static int __pyx_freecount_5_cdec___pyx_scope_struct_22___iter__ = 0;
+static struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_22___iter__ *__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_22___iter__[8];
+static int __pyx_freecount_4cdec_5_cdec___pyx_scope_struct_22___iter__ = 0;
 
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_22___iter__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_22___iter__ *p;
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_22___iter__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_22___iter__ *p;
   PyObject *o;
-  if (likely((__pyx_freecount_5_cdec___pyx_scope_struct_22___iter__ > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_22___iter__)))) {
-    o = (PyObject*)__pyx_freelist_5_cdec___pyx_scope_struct_22___iter__[--__pyx_freecount_5_cdec___pyx_scope_struct_22___iter__];
-    memset(o, 0, sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_22___iter__));
+  if (likely((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_22___iter__ > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_22___iter__)))) {
+    o = (PyObject*)__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_22___iter__[--__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_22___iter__];
+    memset(o, 0, sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_22___iter__));
     PyObject_INIT(o, t);
     PyObject_GC_Track(o);
   } else {
     o = (*t->tp_alloc)(t, 0);
     if (unlikely(!o)) return 0;
   }
-  p = ((struct __pyx_obj_5_cdec___pyx_scope_struct_22___iter__ *)o);
+  p = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_22___iter__ *)o);
   p->__pyx_v_self = 0;
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec___pyx_scope_struct_22___iter__(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_22___iter__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_22___iter__ *)o;
+static void __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_22___iter__(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_22___iter__ *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_22___iter__ *)o;
   PyObject_GC_UnTrack(o);
   Py_CLEAR(p->__pyx_v_self);
-  if ((__pyx_freecount_5_cdec___pyx_scope_struct_22___iter__ < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_22___iter__))) {
-    __pyx_freelist_5_cdec___pyx_scope_struct_22___iter__[__pyx_freecount_5_cdec___pyx_scope_struct_22___iter__++] = ((struct __pyx_obj_5_cdec___pyx_scope_struct_22___iter__ *)o);
+  if ((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_22___iter__ < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_22___iter__))) {
+    __pyx_freelist_4cdec_5_cdec___pyx_scope_struct_22___iter__[__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_22___iter__++] = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_22___iter__ *)o);
   } else {
     (*Py_TYPE(o)->tp_free)(o);
   }
 }
 
-static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_22___iter__(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_22___iter__(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_5_cdec___pyx_scope_struct_22___iter__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_22___iter__ *)o;
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_22___iter__ *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_22___iter__ *)o;
   if (p->__pyx_v_self) {
     e = (*v)(((PyObject*)p->__pyx_v_self), a); if (e) return e;
   }
   return 0;
 }
 
-static int __pyx_tp_clear_5_cdec___pyx_scope_struct_22___iter__(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_22___iter__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_22___iter__ *)o;
+static int __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_22___iter__(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_22___iter__ *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_22___iter__ *)o;
   PyObject* tmp;
   tmp = ((PyObject*)p->__pyx_v_self);
-  p->__pyx_v_self = ((struct __pyx_obj_5_cdec_CandidateSet *)Py_None); Py_INCREF(Py_None);
+  p->__pyx_v_self = ((struct __pyx_obj_4cdec_5_cdec_CandidateSet *)Py_None); Py_INCREF(Py_None);
   Py_XDECREF(tmp);
   return 0;
 }
 
-static PyMethodDef __pyx_methods_5_cdec___pyx_scope_struct_22___iter__[] = {
+static PyMethodDef __pyx_methods_4cdec_5_cdec___pyx_scope_struct_22___iter__[] = {
   {0, 0, 0, 0}
 };
 
-static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_22___iter__ = {
+static PyTypeObject __pyx_type_4cdec_5_cdec___pyx_scope_struct_22___iter__ = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.__pyx_scope_struct_22___iter__"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_22___iter__), /*tp_basicsize*/
+  __Pyx_NAMESTR("cdec._cdec.__pyx_scope_struct_22___iter__"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_22___iter__), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec___pyx_scope_struct_22___iter__, /*tp_dealloc*/
+  __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_22___iter__, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -20431,13 +20383,13 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_22___iter__ = {
   0, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_5_cdec___pyx_scope_struct_22___iter__, /*tp_traverse*/
-  __pyx_tp_clear_5_cdec___pyx_scope_struct_22___iter__, /*tp_clear*/
+  __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_22___iter__, /*tp_traverse*/
+  __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_22___iter__, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec___pyx_scope_struct_22___iter__, /*tp_methods*/
+  __pyx_methods_4cdec_5_cdec___pyx_scope_struct_22___iter__, /*tp_methods*/
   0, /*tp_members*/
   0, /*tp_getset*/
   0, /*tp_base*/
@@ -20447,7 +20399,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_22___iter__ = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec___pyx_scope_struct_22___iter__, /*tp_new*/
+  __pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_22___iter__, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -20461,55 +20413,75 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_22___iter__ = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec_Grammar(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_4cdec_5_cdec_DenseVector(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
   PyObject *o;
   o = (*t->tp_alloc)(t, 0);
   if (unlikely(!o)) return 0;
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec_Grammar(PyObject *o) {
+static void __pyx_tp_dealloc_4cdec_5_cdec_DenseVector(PyObject *o) {
   {
     PyObject *etype, *eval, *etb;
     PyErr_Fetch(&etype, &eval, &etb);
     ++Py_REFCNT(o);
-    __pyx_pw_5_cdec_7Grammar_1__dealloc__(o);
+    __pyx_pw_4cdec_5_cdec_11DenseVector_3__dealloc__(o);
     if (PyErr_Occurred()) PyErr_WriteUnraisable(o);
     --Py_REFCNT(o);
     PyErr_Restore(etype, eval, etb);
   }
   (*Py_TYPE(o)->tp_free)(o);
 }
-
-static PyObject *__pyx_getprop_5_cdec_7Grammar_name(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_5_cdec_7Grammar_4name_1__get__(o);
+static PyObject *__pyx_sq_item_4cdec_5_cdec_DenseVector(PyObject *o, Py_ssize_t i) {
+  PyObject *r;
+  PyObject *x = PyInt_FromSsize_t(i); if(!x) return 0;
+  r = Py_TYPE(o)->tp_as_mapping->mp_subscript(o, x);
+  Py_DECREF(x);
+  return r;
 }
 
-static int __pyx_setprop_5_cdec_7Grammar_name(PyObject *o, PyObject *v, CYTHON_UNUSED void *x) {
+static int __pyx_mp_ass_subscript_4cdec_5_cdec_DenseVector(PyObject *o, PyObject *i, PyObject *v) {
   if (v) {
-    return __pyx_pw_5_cdec_7Grammar_4name_3__set__(o, v);
+    return __pyx_pw_4cdec_5_cdec_11DenseVector_9__setitem__(o, i, v);
   }
   else {
-    PyErr_SetString(PyExc_NotImplementedError, "__del__");
+    PyErr_Format(PyExc_NotImplementedError,
+      "Subscript deletion not supported by %s", Py_TYPE(o)->tp_name);
     return -1;
   }
 }
 
-static PyMethodDef __pyx_methods_5_cdec_Grammar[] = {
+static PyMethodDef __pyx_methods_4cdec_5_cdec_DenseVector[] = {
+  {__Pyx_NAMESTR("dot"), (PyCFunction)__pyx_pw_4cdec_5_cdec_11DenseVector_14dot, METH_O, __Pyx_DOCSTR(__pyx_doc_4cdec_5_cdec_11DenseVector_13dot)},
+  {__Pyx_NAMESTR("tosparse"), (PyCFunction)__pyx_pw_4cdec_5_cdec_11DenseVector_16tosparse, METH_NOARGS, __Pyx_DOCSTR(__pyx_doc_4cdec_5_cdec_11DenseVector_15tosparse)},
   {0, 0, 0, 0}
 };
 
-static struct PyGetSetDef __pyx_getsets_5_cdec_Grammar[] = {
-  {(char *)"name", __pyx_getprop_5_cdec_7Grammar_name, __pyx_setprop_5_cdec_7Grammar_name, 0, 0},
-  {0, 0, 0, 0, 0}
+static PySequenceMethods __pyx_tp_as_sequence_DenseVector = {
+  __pyx_pw_4cdec_5_cdec_11DenseVector_5__len__, /*sq_length*/
+  0, /*sq_concat*/
+  0, /*sq_repeat*/
+  __pyx_sq_item_4cdec_5_cdec_DenseVector, /*sq_item*/
+  0, /*sq_slice*/
+  0, /*sq_ass_item*/
+  0, /*sq_ass_slice*/
+  0, /*sq_contains*/
+  0, /*sq_inplace_concat*/
+  0, /*sq_inplace_repeat*/
+};
+
+static PyMappingMethods __pyx_tp_as_mapping_DenseVector = {
+  __pyx_pw_4cdec_5_cdec_11DenseVector_5__len__, /*mp_length*/
+  __pyx_pw_4cdec_5_cdec_11DenseVector_7__getitem__, /*mp_subscript*/
+  __pyx_mp_ass_subscript_4cdec_5_cdec_DenseVector, /*mp_ass_subscript*/
 };
 
-static PyTypeObject __pyx_type_5_cdec_Grammar = {
+static PyTypeObject __pyx_type_4cdec_5_cdec_DenseVector = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.Grammar"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec_Grammar), /*tp_basicsize*/
+  __Pyx_NAMESTR("cdec._cdec.DenseVector"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec_DenseVector), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec_Grammar, /*tp_dealloc*/
+  __pyx_tp_dealloc_4cdec_5_cdec_DenseVector, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -20520,8 +20492,8 @@ static PyTypeObject __pyx_type_5_cdec_Grammar = {
   #endif
   0, /*tp_repr*/
   0, /*tp_as_number*/
-  0, /*tp_as_sequence*/
-  0, /*tp_as_mapping*/
+  &__pyx_tp_as_sequence_DenseVector, /*tp_as_sequence*/
+  &__pyx_tp_as_mapping_DenseVector, /*tp_as_mapping*/
   0, /*tp_hash*/
   0, /*tp_call*/
   0, /*tp_str*/
@@ -20534,19 +20506,19 @@ static PyTypeObject __pyx_type_5_cdec_Grammar = {
   0, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
-  __pyx_pw_5_cdec_7Grammar_3__iter__, /*tp_iter*/
+  __pyx_pw_4cdec_5_cdec_11DenseVector_11__iter__, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec_Grammar, /*tp_methods*/
+  __pyx_methods_4cdec_5_cdec_DenseVector, /*tp_methods*/
   0, /*tp_members*/
-  __pyx_getsets_5_cdec_Grammar, /*tp_getset*/
+  0, /*tp_getset*/
   0, /*tp_base*/
   0, /*tp_dict*/
   0, /*tp_descr_get*/
   0, /*tp_descr_set*/
   0, /*tp_dictoffset*/
-  0, /*tp_init*/
+  __pyx_pw_4cdec_5_cdec_11DenseVector_1__init__, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec_Grammar, /*tp_new*/
+  __pyx_tp_new_4cdec_5_cdec_DenseVector, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -20560,113 +20532,134 @@ static PyTypeObject __pyx_type_5_cdec_Grammar = {
   #endif
 };
 
-static struct __pyx_obj_5_cdec___pyx_scope_struct_20_lines *__pyx_freelist_5_cdec___pyx_scope_struct_20_lines[8];
-static int __pyx_freecount_5_cdec___pyx_scope_struct_20_lines = 0;
-
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_20_lines(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_20_lines *p;
+static PyObject *__pyx_tp_new_4cdec_5_cdec_SufficientStats(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
   PyObject *o;
-  if (likely((__pyx_freecount_5_cdec___pyx_scope_struct_20_lines > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_20_lines)))) {
-    o = (PyObject*)__pyx_freelist_5_cdec___pyx_scope_struct_20_lines[--__pyx_freecount_5_cdec___pyx_scope_struct_20_lines];
-    memset(o, 0, sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_20_lines));
-    PyObject_INIT(o, t);
-    PyObject_GC_Track(o);
-  } else {
-    o = (*t->tp_alloc)(t, 0);
-    if (unlikely(!o)) return 0;
-  }
-  p = ((struct __pyx_obj_5_cdec___pyx_scope_struct_20_lines *)o);
-  p->__pyx_outer_scope = 0;
-  p->__pyx_v_delta = 0;
-  p->__pyx_v_i = 0;
-  p->__pyx_v_label = 0;
-  p->__pyx_v_weight = 0;
-  p->__pyx_t_1 = 0;
-  p->__pyx_t_3 = 0;
+  o = (*t->tp_alloc)(t, 0);
+  if (unlikely(!o)) return 0;
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec___pyx_scope_struct_20_lines(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_20_lines *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_20_lines *)o;
-  PyObject_GC_UnTrack(o);
-  Py_CLEAR(p->__pyx_outer_scope);
-  Py_CLEAR(p->__pyx_v_delta);
-  Py_CLEAR(p->__pyx_v_i);
-  Py_CLEAR(p->__pyx_v_label);
-  Py_CLEAR(p->__pyx_v_weight);
-  Py_CLEAR(p->__pyx_t_1);
-  Py_CLEAR(p->__pyx_t_3);
-  if ((__pyx_freecount_5_cdec___pyx_scope_struct_20_lines < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_20_lines))) {
-    __pyx_freelist_5_cdec___pyx_scope_struct_20_lines[__pyx_freecount_5_cdec___pyx_scope_struct_20_lines++] = ((struct __pyx_obj_5_cdec___pyx_scope_struct_20_lines *)o);
-  } else {
-    (*Py_TYPE(o)->tp_free)(o);
+static void __pyx_tp_dealloc_4cdec_5_cdec_SufficientStats(PyObject *o) {
+  {
+    PyObject *etype, *eval, *etb;
+    PyErr_Fetch(&etype, &eval, &etb);
+    ++Py_REFCNT(o);
+    __pyx_pw_4cdec_5_cdec_15SufficientStats_1__dealloc__(o);
+    if (PyErr_Occurred()) PyErr_WriteUnraisable(o);
+    --Py_REFCNT(o);
+    PyErr_Restore(etype, eval, etb);
   }
+  (*Py_TYPE(o)->tp_free)(o);
+}
+static PyObject *__pyx_sq_item_4cdec_5_cdec_SufficientStats(PyObject *o, Py_ssize_t i) {
+  PyObject *r;
+  PyObject *x = PyInt_FromSsize_t(i); if(!x) return 0;
+  r = Py_TYPE(o)->tp_as_mapping->mp_subscript(o, x);
+  Py_DECREF(x);
+  return r;
 }
 
-static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_20_lines(PyObject *o, visitproc v, void *a) {
-  int e;
-  struct __pyx_obj_5_cdec___pyx_scope_struct_20_lines *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_20_lines *)o;
-  if (p->__pyx_outer_scope) {
-    e = (*v)(((PyObject*)p->__pyx_outer_scope), a); if (e) return e;
-  }
-  if (p->__pyx_v_delta) {
-    e = (*v)(p->__pyx_v_delta, a); if (e) return e;
-  }
-  if (p->__pyx_v_i) {
-    e = (*v)(p->__pyx_v_i, a); if (e) return e;
-  }
-  if (p->__pyx_v_label) {
-    e = (*v)(p->__pyx_v_label, a); if (e) return e;
-  }
-  if (p->__pyx_v_weight) {
-    e = (*v)(p->__pyx_v_weight, a); if (e) return e;
-  }
-  if (p->__pyx_t_1) {
-    e = (*v)(p->__pyx_t_1, a); if (e) return e;
-  }
-  if (p->__pyx_t_3) {
-    e = (*v)(p->__pyx_t_3, a); if (e) return e;
-  }
-  return 0;
+static PyObject *__pyx_getprop_4cdec_5_cdec_15SufficientStats_score(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_4cdec_5_cdec_15SufficientStats_5score_1__get__(o);
 }
 
-static int __pyx_tp_clear_5_cdec___pyx_scope_struct_20_lines(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_20_lines *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_20_lines *)o;
-  PyObject* tmp;
-  tmp = ((PyObject*)p->__pyx_outer_scope);
-  p->__pyx_outer_scope = ((struct __pyx_obj_5_cdec___pyx_scope_struct_19_todot *)Py_None); Py_INCREF(Py_None);
-  Py_XDECREF(tmp);
-  tmp = ((PyObject*)p->__pyx_v_delta);
-  p->__pyx_v_delta = Py_None; Py_INCREF(Py_None);
-  Py_XDECREF(tmp);
-  tmp = ((PyObject*)p->__pyx_v_i);
-  p->__pyx_v_i = Py_None; Py_INCREF(Py_None);
-  Py_XDECREF(tmp);
-  tmp = ((PyObject*)p->__pyx_v_label);
-  p->__pyx_v_label = Py_None; Py_INCREF(Py_None);
-  Py_XDECREF(tmp);
-  tmp = ((PyObject*)p->__pyx_v_weight);
-  p->__pyx_v_weight = Py_None; Py_INCREF(Py_None);
-  Py_XDECREF(tmp);
-  tmp = ((PyObject*)p->__pyx_t_1);
-  p->__pyx_t_1 = Py_None; Py_INCREF(Py_None);
-  Py_XDECREF(tmp);
-  tmp = ((PyObject*)p->__pyx_t_3);
-  p->__pyx_t_3 = Py_None; Py_INCREF(Py_None);
-  Py_XDECREF(tmp);
-  return 0;
+static PyObject *__pyx_getprop_4cdec_5_cdec_15SufficientStats_detail(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_4cdec_5_cdec_15SufficientStats_6detail_1__get__(o);
 }
 
-static PyMethodDef __pyx_methods_5_cdec___pyx_scope_struct_20_lines[] = {
+static PyMethodDef __pyx_methods_4cdec_5_cdec_SufficientStats[] = {
   {0, 0, 0, 0}
 };
 
-static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_20_lines = {
+static struct PyGetSetDef __pyx_getsets_4cdec_5_cdec_SufficientStats[] = {
+  {(char *)"score", __pyx_getprop_4cdec_5_cdec_15SufficientStats_score, 0, 0, 0},
+  {(char *)"detail", __pyx_getprop_4cdec_5_cdec_15SufficientStats_detail, 0, 0, 0},
+  {0, 0, 0, 0, 0}
+};
+
+static PyNumberMethods __pyx_tp_as_number_SufficientStats = {
+  __pyx_pw_4cdec_5_cdec_15SufficientStats_12__add__, /*nb_add*/
+  0, /*nb_subtract*/
+  0, /*nb_multiply*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_divide*/
+  #endif
+  0, /*nb_remainder*/
+  0, /*nb_divmod*/
+  0, /*nb_power*/
+  0, /*nb_negative*/
+  0, /*nb_positive*/
+  0, /*nb_absolute*/
+  0, /*nb_nonzero*/
+  0, /*nb_invert*/
+  0, /*nb_lshift*/
+  0, /*nb_rshift*/
+  0, /*nb_and*/
+  0, /*nb_xor*/
+  0, /*nb_or*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_coerce*/
+  #endif
+  0, /*nb_int*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_long*/
+  #else
+  0, /*reserved*/
+  #endif
+  0, /*nb_float*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_oct*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_hex*/
+  #endif
+  __pyx_pw_4cdec_5_cdec_15SufficientStats_10__iadd__, /*nb_inplace_add*/
+  0, /*nb_inplace_subtract*/
+  0, /*nb_inplace_multiply*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_inplace_divide*/
+  #endif
+  0, /*nb_inplace_remainder*/
+  0, /*nb_inplace_power*/
+  0, /*nb_inplace_lshift*/
+  0, /*nb_inplace_rshift*/
+  0, /*nb_inplace_and*/
+  0, /*nb_inplace_xor*/
+  0, /*nb_inplace_or*/
+  0, /*nb_floor_divide*/
+  0, /*nb_true_divide*/
+  0, /*nb_inplace_floor_divide*/
+  0, /*nb_inplace_true_divide*/
+  #if PY_VERSION_HEX >= 0x02050000
+  0, /*nb_index*/
+  #endif
+};
+
+static PySequenceMethods __pyx_tp_as_sequence_SufficientStats = {
+  __pyx_pw_4cdec_5_cdec_15SufficientStats_3__len__, /*sq_length*/
+  0, /*sq_concat*/
+  0, /*sq_repeat*/
+  __pyx_sq_item_4cdec_5_cdec_SufficientStats, /*sq_item*/
+  0, /*sq_slice*/
+  0, /*sq_ass_item*/
+  0, /*sq_ass_slice*/
+  0, /*sq_contains*/
+  0, /*sq_inplace_concat*/
+  0, /*sq_inplace_repeat*/
+};
+
+static PyMappingMethods __pyx_tp_as_mapping_SufficientStats = {
+  __pyx_pw_4cdec_5_cdec_15SufficientStats_3__len__, /*mp_length*/
+  __pyx_pw_4cdec_5_cdec_15SufficientStats_8__getitem__, /*mp_subscript*/
+  0, /*mp_ass_subscript*/
+};
+
+static PyTypeObject __pyx_type_4cdec_5_cdec_SufficientStats = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.__pyx_scope_struct_20_lines"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_20_lines), /*tp_basicsize*/
+  __Pyx_NAMESTR("cdec._cdec.SufficientStats"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec_SufficientStats), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec___pyx_scope_struct_20_lines, /*tp_dealloc*/
+  __pyx_tp_dealloc_4cdec_5_cdec_SufficientStats, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -20676,26 +20669,26 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_20_lines = {
   0, /*reserved*/
   #endif
   0, /*tp_repr*/
-  0, /*tp_as_number*/
-  0, /*tp_as_sequence*/
-  0, /*tp_as_mapping*/
+  &__pyx_tp_as_number_SufficientStats, /*tp_as_number*/
+  &__pyx_tp_as_sequence_SufficientStats, /*tp_as_sequence*/
+  &__pyx_tp_as_mapping_SufficientStats, /*tp_as_mapping*/
   0, /*tp_hash*/
   0, /*tp_call*/
   0, /*tp_str*/
   0, /*tp_getattro*/
   0, /*tp_setattro*/
   0, /*tp_as_buffer*/
-  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_5_cdec___pyx_scope_struct_20_lines, /*tp_traverse*/
-  __pyx_tp_clear_5_cdec___pyx_scope_struct_20_lines, /*tp_clear*/
+  0, /*tp_traverse*/
+  0, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
-  0, /*tp_iter*/
+  __pyx_pw_4cdec_5_cdec_15SufficientStats_5__iter__, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec___pyx_scope_struct_20_lines, /*tp_methods*/
+  __pyx_methods_4cdec_5_cdec_SufficientStats, /*tp_methods*/
   0, /*tp_members*/
-  0, /*tp_getset*/
+  __pyx_getsets_4cdec_5_cdec_SufficientStats, /*tp_getset*/
   0, /*tp_base*/
   0, /*tp_dict*/
   0, /*tp_descr_get*/
@@ -20703,7 +20696,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_20_lines = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec___pyx_scope_struct_20_lines, /*tp_new*/
+  __pyx_tp_new_4cdec_5_cdec_SufficientStats, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -20717,65 +20710,81 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_20_lines = {
   #endif
 };
 
-static struct __pyx_obj_5_cdec___pyx_scope_struct_12_sample_trees *__pyx_freelist_5_cdec___pyx_scope_struct_12_sample_trees[8];
-static int __pyx_freecount_5_cdec___pyx_scope_struct_12_sample_trees = 0;
+static struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_21___iter__ *__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_21___iter__[8];
+static int __pyx_freecount_4cdec_5_cdec___pyx_scope_struct_21___iter__ = 0;
 
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_12_sample_trees(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_12_sample_trees *p;
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_21___iter__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_21___iter__ *p;
   PyObject *o;
-  if (likely((__pyx_freecount_5_cdec___pyx_scope_struct_12_sample_trees > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_12_sample_trees)))) {
-    o = (PyObject*)__pyx_freelist_5_cdec___pyx_scope_struct_12_sample_trees[--__pyx_freecount_5_cdec___pyx_scope_struct_12_sample_trees];
-    memset(o, 0, sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_12_sample_trees));
+  if (likely((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_21___iter__ > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_21___iter__)))) {
+    o = (PyObject*)__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_21___iter__[--__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_21___iter__];
+    memset(o, 0, sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_21___iter__));
     PyObject_INIT(o, t);
     PyObject_GC_Track(o);
   } else {
     o = (*t->tp_alloc)(t, 0);
     if (unlikely(!o)) return 0;
   }
-  p = ((struct __pyx_obj_5_cdec___pyx_scope_struct_12_sample_trees *)o);
+  p = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_21___iter__ *)o);
+  p->__pyx_v_i = 0;
   p->__pyx_v_self = 0;
+  p->__pyx_t_1 = 0;
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec___pyx_scope_struct_12_sample_trees(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_12_sample_trees *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_12_sample_trees *)o;
+static void __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_21___iter__(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_21___iter__ *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_21___iter__ *)o;
   PyObject_GC_UnTrack(o);
+  Py_CLEAR(p->__pyx_v_i);
   Py_CLEAR(p->__pyx_v_self);
-  if ((__pyx_freecount_5_cdec___pyx_scope_struct_12_sample_trees < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_12_sample_trees))) {
-    __pyx_freelist_5_cdec___pyx_scope_struct_12_sample_trees[__pyx_freecount_5_cdec___pyx_scope_struct_12_sample_trees++] = ((struct __pyx_obj_5_cdec___pyx_scope_struct_12_sample_trees *)o);
+  Py_CLEAR(p->__pyx_t_1);
+  if ((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_21___iter__ < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_21___iter__))) {
+    __pyx_freelist_4cdec_5_cdec___pyx_scope_struct_21___iter__[__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_21___iter__++] = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_21___iter__ *)o);
   } else {
     (*Py_TYPE(o)->tp_free)(o);
   }
 }
 
-static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_12_sample_trees(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_21___iter__(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_5_cdec___pyx_scope_struct_12_sample_trees *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_12_sample_trees *)o;
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_21___iter__ *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_21___iter__ *)o;
+  if (p->__pyx_v_i) {
+    e = (*v)(p->__pyx_v_i, a); if (e) return e;
+  }
   if (p->__pyx_v_self) {
     e = (*v)(((PyObject*)p->__pyx_v_self), a); if (e) return e;
   }
+  if (p->__pyx_t_1) {
+    e = (*v)(p->__pyx_t_1, a); if (e) return e;
+  }
   return 0;
 }
 
-static int __pyx_tp_clear_5_cdec___pyx_scope_struct_12_sample_trees(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_12_sample_trees *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_12_sample_trees *)o;
+static int __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_21___iter__(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_21___iter__ *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_21___iter__ *)o;
   PyObject* tmp;
+  tmp = ((PyObject*)p->__pyx_v_i);
+  p->__pyx_v_i = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
   tmp = ((PyObject*)p->__pyx_v_self);
-  p->__pyx_v_self = ((struct __pyx_obj_5_cdec_Hypergraph *)Py_None); Py_INCREF(Py_None);
+  p->__pyx_v_self = ((struct __pyx_obj_4cdec_5_cdec_SufficientStats *)Py_None); Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->__pyx_t_1);
+  p->__pyx_t_1 = Py_None; Py_INCREF(Py_None);
   Py_XDECREF(tmp);
   return 0;
 }
 
-static PyMethodDef __pyx_methods_5_cdec___pyx_scope_struct_12_sample_trees[] = {
+static PyMethodDef __pyx_methods_4cdec_5_cdec___pyx_scope_struct_21___iter__[] = {
   {0, 0, 0, 0}
 };
 
-static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_12_sample_trees = {
+static PyTypeObject __pyx_type_4cdec_5_cdec___pyx_scope_struct_21___iter__ = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.__pyx_scope_struct_12_sample_trees"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_12_sample_trees), /*tp_basicsize*/
+  __Pyx_NAMESTR("cdec._cdec.__pyx_scope_struct_21___iter__"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_21___iter__), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec___pyx_scope_struct_12_sample_trees, /*tp_dealloc*/
+  __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_21___iter__, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -20796,13 +20805,13 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_12_sample_trees = {
   0, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_5_cdec___pyx_scope_struct_12_sample_trees, /*tp_traverse*/
-  __pyx_tp_clear_5_cdec___pyx_scope_struct_12_sample_trees, /*tp_clear*/
+  __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_21___iter__, /*tp_traverse*/
+  __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_21___iter__, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec___pyx_scope_struct_12_sample_trees, /*tp_methods*/
+  __pyx_methods_4cdec_5_cdec___pyx_scope_struct_21___iter__, /*tp_methods*/
   0, /*tp_members*/
   0, /*tp_getset*/
   0, /*tp_base*/
@@ -20812,7 +20821,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_12_sample_trees = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec___pyx_scope_struct_12_sample_trees, /*tp_new*/
+  __pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_21___iter__, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -20826,65 +20835,56 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_12_sample_trees = {
   #endif
 };
 
-static struct __pyx_obj_5_cdec___pyx_scope_struct_13___get__ *__pyx_freelist_5_cdec___pyx_scope_struct_13___get__[8];
-static int __pyx_freecount_5_cdec___pyx_scope_struct_13___get__ = 0;
-
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_13___get__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_13___get__ *p;
+static PyObject *__pyx_tp_new_4cdec_5_cdec_Metric(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_4cdec_5_cdec_Metric *p;
   PyObject *o;
-  if (likely((__pyx_freecount_5_cdec___pyx_scope_struct_13___get__ > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_13___get__)))) {
-    o = (PyObject*)__pyx_freelist_5_cdec___pyx_scope_struct_13___get__[--__pyx_freecount_5_cdec___pyx_scope_struct_13___get__];
-    memset(o, 0, sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_13___get__));
-    PyObject_INIT(o, t);
-    PyObject_GC_Track(o);
-  } else {
-    o = (*t->tp_alloc)(t, 0);
-    if (unlikely(!o)) return 0;
+  o = (*t->tp_alloc)(t, 0);
+  if (unlikely(!o)) return 0;
+  p = ((struct __pyx_obj_4cdec_5_cdec_Metric *)o);
+  p->scorer = ((struct __pyx_obj_4cdec_5_cdec_Scorer *)Py_None); Py_INCREF(Py_None);
+  if (unlikely(__pyx_pw_4cdec_5_cdec_6Metric_1__cinit__(o, __pyx_empty_tuple, NULL) < 0)) {
+    Py_DECREF(o); o = 0;
   }
-  p = ((struct __pyx_obj_5_cdec___pyx_scope_struct_13___get__ *)o);
-  p->__pyx_v_self = 0;
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec___pyx_scope_struct_13___get__(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_13___get__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_13___get__ *)o;
+static void __pyx_tp_dealloc_4cdec_5_cdec_Metric(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec_Metric *p = (struct __pyx_obj_4cdec_5_cdec_Metric *)o;
   PyObject_GC_UnTrack(o);
-  Py_CLEAR(p->__pyx_v_self);
-  if ((__pyx_freecount_5_cdec___pyx_scope_struct_13___get__ < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_13___get__))) {
-    __pyx_freelist_5_cdec___pyx_scope_struct_13___get__[__pyx_freecount_5_cdec___pyx_scope_struct_13___get__++] = ((struct __pyx_obj_5_cdec___pyx_scope_struct_13___get__ *)o);
-  } else {
-    (*Py_TYPE(o)->tp_free)(o);
-  }
+  Py_CLEAR(p->scorer);
+  (*Py_TYPE(o)->tp_free)(o);
 }
 
-static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_13___get__(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_4cdec_5_cdec_Metric(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_5_cdec___pyx_scope_struct_13___get__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_13___get__ *)o;
-  if (p->__pyx_v_self) {
-    e = (*v)(((PyObject*)p->__pyx_v_self), a); if (e) return e;
+  struct __pyx_obj_4cdec_5_cdec_Metric *p = (struct __pyx_obj_4cdec_5_cdec_Metric *)o;
+  if (p->scorer) {
+    e = (*v)(((PyObject*)p->scorer), a); if (e) return e;
   }
   return 0;
 }
 
-static int __pyx_tp_clear_5_cdec___pyx_scope_struct_13___get__(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_13___get__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_13___get__ *)o;
+static int __pyx_tp_clear_4cdec_5_cdec_Metric(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec_Metric *p = (struct __pyx_obj_4cdec_5_cdec_Metric *)o;
   PyObject* tmp;
-  tmp = ((PyObject*)p->__pyx_v_self);
-  p->__pyx_v_self = ((struct __pyx_obj_5_cdec_Hypergraph *)Py_None); Py_INCREF(Py_None);
+  tmp = ((PyObject*)p->scorer);
+  p->scorer = ((struct __pyx_obj_4cdec_5_cdec_Scorer *)Py_None); Py_INCREF(Py_None);
   Py_XDECREF(tmp);
   return 0;
 }
 
-static PyMethodDef __pyx_methods_5_cdec___pyx_scope_struct_13___get__[] = {
+static PyMethodDef __pyx_methods_4cdec_5_cdec_Metric[] = {
+  {__Pyx_NAMESTR("score"), (PyCFunction)__pyx_pw_4cdec_5_cdec_6Metric_5score, METH_NOARGS, __Pyx_DOCSTR(0)},
+  {__Pyx_NAMESTR("evaluate"), (PyCFunction)__pyx_pw_4cdec_5_cdec_6Metric_7evaluate, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)},
   {0, 0, 0, 0}
 };
 
-static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_13___get__ = {
+static PyTypeObject __pyx_type_4cdec_5_cdec_Metric = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.__pyx_scope_struct_13___get__"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_13___get__), /*tp_basicsize*/
+  __Pyx_NAMESTR("cdec._cdec.Metric"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec_Metric), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec___pyx_scope_struct_13___get__, /*tp_dealloc*/
+  __pyx_tp_dealloc_4cdec_5_cdec_Metric, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -20898,20 +20898,20 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_13___get__ = {
   0, /*tp_as_sequence*/
   0, /*tp_as_mapping*/
   0, /*tp_hash*/
-  0, /*tp_call*/
+  __pyx_pw_4cdec_5_cdec_6Metric_3__call__, /*tp_call*/
   0, /*tp_str*/
   0, /*tp_getattro*/
   0, /*tp_setattro*/
   0, /*tp_as_buffer*/
-  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_5_cdec___pyx_scope_struct_13___get__, /*tp_traverse*/
-  __pyx_tp_clear_5_cdec___pyx_scope_struct_13___get__, /*tp_clear*/
+  __pyx_tp_traverse_4cdec_5_cdec_Metric, /*tp_traverse*/
+  __pyx_tp_clear_4cdec_5_cdec_Metric, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec___pyx_scope_struct_13___get__, /*tp_methods*/
+  __pyx_methods_4cdec_5_cdec_Metric, /*tp_methods*/
   0, /*tp_members*/
   0, /*tp_getset*/
   0, /*tp_base*/
@@ -20921,7 +20921,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_13___get__ = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec___pyx_scope_struct_13___get__, /*tp_new*/
+  __pyx_tp_new_4cdec_5_cdec_Metric, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -20935,65 +20935,56 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_13___get__ = {
   #endif
 };
 
-static struct __pyx_obj_5_cdec___pyx_scope_struct_2__phrase *__pyx_freelist_5_cdec___pyx_scope_struct_2__phrase[8];
-static int __pyx_freecount_5_cdec___pyx_scope_struct_2__phrase = 0;
-
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_2__phrase(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_2__phrase *p;
+static PyObject *__pyx_tp_new_4cdec_5_cdec_Candidate(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
   PyObject *o;
-  if (likely((__pyx_freecount_5_cdec___pyx_scope_struct_2__phrase > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_2__phrase)))) {
-    o = (PyObject*)__pyx_freelist_5_cdec___pyx_scope_struct_2__phrase[--__pyx_freecount_5_cdec___pyx_scope_struct_2__phrase];
-    memset(o, 0, sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_2__phrase));
-    PyObject_INIT(o, t);
-    PyObject_GC_Track(o);
-  } else {
-    o = (*t->tp_alloc)(t, 0);
-    if (unlikely(!o)) return 0;
-  }
-  p = ((struct __pyx_obj_5_cdec___pyx_scope_struct_2__phrase *)o);
-  p->__pyx_v_phrase = 0;
+  o = (*t->tp_alloc)(t, 0);
+  if (unlikely(!o)) return 0;
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec___pyx_scope_struct_2__phrase(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_2__phrase *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_2__phrase *)o;
-  PyObject_GC_UnTrack(o);
-  Py_CLEAR(p->__pyx_v_phrase);
-  if ((__pyx_freecount_5_cdec___pyx_scope_struct_2__phrase < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_2__phrase))) {
-    __pyx_freelist_5_cdec___pyx_scope_struct_2__phrase[__pyx_freecount_5_cdec___pyx_scope_struct_2__phrase++] = ((struct __pyx_obj_5_cdec___pyx_scope_struct_2__phrase *)o);
-  } else {
-    (*Py_TYPE(o)->tp_free)(o);
-  }
+static void __pyx_tp_dealloc_4cdec_5_cdec_Candidate(PyObject *o) {
+  (*Py_TYPE(o)->tp_free)(o);
 }
 
-static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_2__phrase(PyObject *o, visitproc v, void *a) {
-  int e;
-  struct __pyx_obj_5_cdec___pyx_scope_struct_2__phrase *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_2__phrase *)o;
-  if (p->__pyx_v_phrase) {
-    e = (*v)(p->__pyx_v_phrase, a); if (e) return e;
-  }
-  return 0;
+static PyObject *__pyx_getprop_4cdec_5_cdec_9Candidate_words(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_4cdec_5_cdec_9Candidate_5words_1__get__(o);
 }
 
-static int __pyx_tp_clear_5_cdec___pyx_scope_struct_2__phrase(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_2__phrase *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_2__phrase *)o;
-  PyObject* tmp;
-  tmp = ((PyObject*)p->__pyx_v_phrase);
-  p->__pyx_v_phrase = Py_None; Py_INCREF(Py_None);
-  Py_XDECREF(tmp);
-  return 0;
+static PyObject *__pyx_getprop_4cdec_5_cdec_9Candidate_fmap(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_4cdec_5_cdec_9Candidate_4fmap_1__get__(o);
 }
 
-static PyMethodDef __pyx_methods_5_cdec___pyx_scope_struct_2__phrase[] = {
+static PyObject *__pyx_getprop_4cdec_5_cdec_9Candidate_score(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_4cdec_5_cdec_9Candidate_5score_1__get__(o);
+}
+
+static int __pyx_setprop_4cdec_5_cdec_9Candidate_score(PyObject *o, PyObject *v, CYTHON_UNUSED void *x) {
+  if (v) {
+    return __pyx_pw_4cdec_5_cdec_9Candidate_5score_3__set__(o, v);
+  }
+  else {
+    PyErr_SetString(PyExc_NotImplementedError, "__del__");
+    return -1;
+  }
+}
+
+static PyMethodDef __pyx_methods_4cdec_5_cdec_Candidate[] = {
   {0, 0, 0, 0}
 };
 
-static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_2__phrase = {
+static struct PyGetSetDef __pyx_getsets_4cdec_5_cdec_Candidate[] = {
+  {(char *)"words", __pyx_getprop_4cdec_5_cdec_9Candidate_words, 0, 0, 0},
+  {(char *)"fmap", __pyx_getprop_4cdec_5_cdec_9Candidate_fmap, 0, 0, 0},
+  {(char *)"score", __pyx_getprop_4cdec_5_cdec_9Candidate_score, __pyx_setprop_4cdec_5_cdec_9Candidate_score, 0, 0},
+  {0, 0, 0, 0, 0}
+};
+
+static PyTypeObject __pyx_type_4cdec_5_cdec_Candidate = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.__pyx_scope_struct_2__phrase"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_2__phrase), /*tp_basicsize*/
+  __Pyx_NAMESTR("cdec._cdec.Candidate"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec_Candidate), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec___pyx_scope_struct_2__phrase, /*tp_dealloc*/
+  __pyx_tp_dealloc_4cdec_5_cdec_Candidate, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -21012,17 +21003,17 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_2__phrase = {
   0, /*tp_getattro*/
   0, /*tp_setattro*/
   0, /*tp_as_buffer*/
-  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_5_cdec___pyx_scope_struct_2__phrase, /*tp_traverse*/
-  __pyx_tp_clear_5_cdec___pyx_scope_struct_2__phrase, /*tp_clear*/
+  0, /*tp_traverse*/
+  0, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec___pyx_scope_struct_2__phrase, /*tp_methods*/
+  __pyx_methods_4cdec_5_cdec_Candidate, /*tp_methods*/
   0, /*tp_members*/
-  0, /*tp_getset*/
+  __pyx_getsets_4cdec_5_cdec_Candidate, /*tp_getset*/
   0, /*tp_base*/
   0, /*tp_dict*/
   0, /*tp_descr_get*/
@@ -21030,7 +21021,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_2__phrase = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec___pyx_scope_struct_2__phrase, /*tp_new*/
+  __pyx_tp_new_4cdec_5_cdec_Candidate, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -21044,29 +21035,26 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_2__phrase = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec_CandidateSet(PyTypeObject *t, PyObject *a, PyObject *k) {
+static PyObject *__pyx_tp_new_4cdec_5_cdec_SparseVector(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
   PyObject *o;
   o = (*t->tp_alloc)(t, 0);
   if (unlikely(!o)) return 0;
-  if (unlikely(__pyx_pw_5_cdec_12CandidateSet_1__cinit__(o, a, k) < 0)) {
-    Py_DECREF(o); o = 0;
-  }
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec_CandidateSet(PyObject *o) {
+static void __pyx_tp_dealloc_4cdec_5_cdec_SparseVector(PyObject *o) {
   {
     PyObject *etype, *eval, *etb;
     PyErr_Fetch(&etype, &eval, &etb);
     ++Py_REFCNT(o);
-    __pyx_pw_5_cdec_12CandidateSet_3__dealloc__(o);
+    __pyx_pw_4cdec_5_cdec_12SparseVector_3__dealloc__(o);
     if (PyErr_Occurred()) PyErr_WriteUnraisable(o);
     --Py_REFCNT(o);
     PyErr_Restore(etype, eval, etb);
   }
   (*Py_TYPE(o)->tp_free)(o);
 }
-static PyObject *__pyx_sq_item_5_cdec_CandidateSet(PyObject *o, Py_ssize_t i) {
+static PyObject *__pyx_sq_item_4cdec_5_cdec_SparseVector(PyObject *o, Py_ssize_t i) {
   PyObject *r;
   PyObject *x = PyInt_FromSsize_t(i); if(!x) return 0;
   r = Py_TYPE(o)->tp_as_mapping->mp_subscript(o, x);
@@ -21074,36 +21062,106 @@ static PyObject *__pyx_sq_item_5_cdec_CandidateSet(PyObject *o, Py_ssize_t i) {
   return r;
 }
 
-static PyMethodDef __pyx_methods_5_cdec_CandidateSet[] = {
-  {__Pyx_NAMESTR("add_kbest"), (PyCFunction)__pyx_pw_5_cdec_12CandidateSet_12add_kbest, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(__pyx_doc_5_cdec_12CandidateSet_11add_kbest)},
+static int __pyx_mp_ass_subscript_4cdec_5_cdec_SparseVector(PyObject *o, PyObject *i, PyObject *v) {
+  if (v) {
+    return __pyx_pw_4cdec_5_cdec_12SparseVector_9__setitem__(o, i, v);
+  }
+  else {
+    PyErr_Format(PyExc_NotImplementedError,
+      "Subscript deletion not supported by %s", Py_TYPE(o)->tp_name);
+    return -1;
+  }
+}
+
+static PyMethodDef __pyx_methods_4cdec_5_cdec_SparseVector[] = {
+  {__Pyx_NAMESTR("copy"), (PyCFunction)__pyx_pw_4cdec_5_cdec_12SparseVector_5copy, METH_NOARGS, __Pyx_DOCSTR(__pyx_doc_4cdec_5_cdec_12SparseVector_4copy)},
+  {__Pyx_NAMESTR("dot"), (PyCFunction)__pyx_pw_4cdec_5_cdec_12SparseVector_14dot, METH_O, __Pyx_DOCSTR(__pyx_doc_4cdec_5_cdec_12SparseVector_13dot)},
   {0, 0, 0, 0}
 };
 
-static PySequenceMethods __pyx_tp_as_sequence_CandidateSet = {
-  __pyx_pw_5_cdec_12CandidateSet_5__len__, /*sq_length*/
+static PyNumberMethods __pyx_tp_as_number_SparseVector = {
+  __pyx_pw_4cdec_5_cdec_12SparseVector_32__add__, /*nb_add*/
+  __pyx_pw_4cdec_5_cdec_12SparseVector_34__sub__, /*nb_subtract*/
+  __pyx_pw_4cdec_5_cdec_12SparseVector_36__mul__, /*nb_multiply*/
+  #if PY_MAJOR_VERSION < 3
+  __pyx_pw_4cdec_5_cdec_12SparseVector_38__div__, /*nb_divide*/
+  #endif
+  0, /*nb_remainder*/
+  0, /*nb_divmod*/
+  0, /*nb_power*/
+  __pyx_pw_4cdec_5_cdec_12SparseVector_22__neg__, /*nb_negative*/
+  0, /*nb_positive*/
+  0, /*nb_absolute*/
+  0, /*nb_nonzero*/
+  0, /*nb_invert*/
+  0, /*nb_lshift*/
+  0, /*nb_rshift*/
+  0, /*nb_and*/
+  0, /*nb_xor*/
+  0, /*nb_or*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_coerce*/
+  #endif
+  0, /*nb_int*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_long*/
+  #else
+  0, /*reserved*/
+  #endif
+  0, /*nb_float*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_oct*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_hex*/
+  #endif
+  __pyx_pw_4cdec_5_cdec_12SparseVector_24__iadd__, /*nb_inplace_add*/
+  __pyx_pw_4cdec_5_cdec_12SparseVector_26__isub__, /*nb_inplace_subtract*/
+  __pyx_pw_4cdec_5_cdec_12SparseVector_28__imul__, /*nb_inplace_multiply*/
+  #if PY_MAJOR_VERSION < 3
+  __pyx_pw_4cdec_5_cdec_12SparseVector_30__idiv__, /*nb_inplace_divide*/
+  #endif
+  0, /*nb_inplace_remainder*/
+  0, /*nb_inplace_power*/
+  0, /*nb_inplace_lshift*/
+  0, /*nb_inplace_rshift*/
+  0, /*nb_inplace_and*/
+  0, /*nb_inplace_xor*/
+  0, /*nb_inplace_or*/
+  0, /*nb_floor_divide*/
+  0, /*nb_true_divide*/
+  0, /*nb_inplace_floor_divide*/
+  0, /*nb_inplace_true_divide*/
+  #if PY_VERSION_HEX >= 0x02050000
+  0, /*nb_index*/
+  #endif
+};
+
+static PySequenceMethods __pyx_tp_as_sequence_SparseVector = {
+  __pyx_pw_4cdec_5_cdec_12SparseVector_18__len__, /*sq_length*/
   0, /*sq_concat*/
   0, /*sq_repeat*/
-  __pyx_sq_item_5_cdec_CandidateSet, /*sq_item*/
+  __pyx_sq_item_4cdec_5_cdec_SparseVector, /*sq_item*/
   0, /*sq_slice*/
   0, /*sq_ass_item*/
   0, /*sq_ass_slice*/
-  0, /*sq_contains*/
+  __pyx_pw_4cdec_5_cdec_12SparseVector_20__contains__, /*sq_contains*/
   0, /*sq_inplace_concat*/
   0, /*sq_inplace_repeat*/
 };
 
-static PyMappingMethods __pyx_tp_as_mapping_CandidateSet = {
-  __pyx_pw_5_cdec_12CandidateSet_5__len__, /*mp_length*/
-  __pyx_pw_5_cdec_12CandidateSet_7__getitem__, /*mp_subscript*/
-  0, /*mp_ass_subscript*/
+static PyMappingMethods __pyx_tp_as_mapping_SparseVector = {
+  __pyx_pw_4cdec_5_cdec_12SparseVector_18__len__, /*mp_length*/
+  __pyx_pw_4cdec_5_cdec_12SparseVector_7__getitem__, /*mp_subscript*/
+  __pyx_mp_ass_subscript_4cdec_5_cdec_SparseVector, /*mp_ass_subscript*/
 };
 
-static PyTypeObject __pyx_type_5_cdec_CandidateSet = {
+static PyTypeObject __pyx_type_4cdec_5_cdec_SparseVector = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.CandidateSet"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec_CandidateSet), /*tp_basicsize*/
+  __Pyx_NAMESTR("cdec._cdec.SparseVector"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec_SparseVector), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec_CandidateSet, /*tp_dealloc*/
+  __pyx_tp_dealloc_4cdec_5_cdec_SparseVector, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -21113,9 +21171,9 @@ static PyTypeObject __pyx_type_5_cdec_CandidateSet = {
   0, /*reserved*/
   #endif
   0, /*tp_repr*/
-  0, /*tp_as_number*/
-  &__pyx_tp_as_sequence_CandidateSet, /*tp_as_sequence*/
-  &__pyx_tp_as_mapping_CandidateSet, /*tp_as_mapping*/
+  &__pyx_tp_as_number_SparseVector, /*tp_as_number*/
+  &__pyx_tp_as_sequence_SparseVector, /*tp_as_sequence*/
+  &__pyx_tp_as_mapping_SparseVector, /*tp_as_mapping*/
   0, /*tp_hash*/
   0, /*tp_call*/
   0, /*tp_str*/
@@ -21126,11 +21184,11 @@ static PyTypeObject __pyx_type_5_cdec_CandidateSet = {
   0, /*tp_doc*/
   0, /*tp_traverse*/
   0, /*tp_clear*/
-  0, /*tp_richcompare*/
+  __pyx_pw_4cdec_5_cdec_12SparseVector_16__richcmp__, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
-  __pyx_pw_5_cdec_12CandidateSet_9__iter__, /*tp_iter*/
+  __pyx_pw_4cdec_5_cdec_12SparseVector_11__iter__, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec_CandidateSet, /*tp_methods*/
+  __pyx_methods_4cdec_5_cdec_SparseVector, /*tp_methods*/
   0, /*tp_members*/
   0, /*tp_getset*/
   0, /*tp_base*/
@@ -21138,9 +21196,9 @@ static PyTypeObject __pyx_type_5_cdec_CandidateSet = {
   0, /*tp_descr_get*/
   0, /*tp_descr_set*/
   0, /*tp_dictoffset*/
-  0, /*tp_init*/
+  __pyx_pw_4cdec_5_cdec_12SparseVector_1__init__, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec_CandidateSet, /*tp_new*/
+  __pyx_tp_new_4cdec_5_cdec_SparseVector, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -21154,65 +21212,65 @@ static PyTypeObject __pyx_type_5_cdec_CandidateSet = {
   #endif
 };
 
-static struct __pyx_obj_5_cdec___pyx_scope_struct_14___get__ *__pyx_freelist_5_cdec___pyx_scope_struct_14___get__[8];
-static int __pyx_freecount_5_cdec___pyx_scope_struct_14___get__ = 0;
+static struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_15___get__ *__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_15___get__[8];
+static int __pyx_freecount_4cdec_5_cdec___pyx_scope_struct_15___get__ = 0;
 
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_14___get__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_14___get__ *p;
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_15___get__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_15___get__ *p;
   PyObject *o;
-  if (likely((__pyx_freecount_5_cdec___pyx_scope_struct_14___get__ > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_14___get__)))) {
-    o = (PyObject*)__pyx_freelist_5_cdec___pyx_scope_struct_14___get__[--__pyx_freecount_5_cdec___pyx_scope_struct_14___get__];
-    memset(o, 0, sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_14___get__));
+  if (likely((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_15___get__ > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_15___get__)))) {
+    o = (PyObject*)__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_15___get__[--__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_15___get__];
+    memset(o, 0, sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_15___get__));
     PyObject_INIT(o, t);
     PyObject_GC_Track(o);
   } else {
     o = (*t->tp_alloc)(t, 0);
     if (unlikely(!o)) return 0;
   }
-  p = ((struct __pyx_obj_5_cdec___pyx_scope_struct_14___get__ *)o);
+  p = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_15___get__ *)o);
   p->__pyx_v_self = 0;
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec___pyx_scope_struct_14___get__(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_14___get__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_14___get__ *)o;
+static void __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_15___get__(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_15___get__ *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_15___get__ *)o;
   PyObject_GC_UnTrack(o);
   Py_CLEAR(p->__pyx_v_self);
-  if ((__pyx_freecount_5_cdec___pyx_scope_struct_14___get__ < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_14___get__))) {
-    __pyx_freelist_5_cdec___pyx_scope_struct_14___get__[__pyx_freecount_5_cdec___pyx_scope_struct_14___get__++] = ((struct __pyx_obj_5_cdec___pyx_scope_struct_14___get__ *)o);
+  if ((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_15___get__ < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_15___get__))) {
+    __pyx_freelist_4cdec_5_cdec___pyx_scope_struct_15___get__[__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_15___get__++] = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_15___get__ *)o);
   } else {
     (*Py_TYPE(o)->tp_free)(o);
   }
 }
 
-static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_14___get__(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_15___get__(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_5_cdec___pyx_scope_struct_14___get__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_14___get__ *)o;
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_15___get__ *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_15___get__ *)o;
   if (p->__pyx_v_self) {
     e = (*v)(((PyObject*)p->__pyx_v_self), a); if (e) return e;
   }
   return 0;
 }
 
-static int __pyx_tp_clear_5_cdec___pyx_scope_struct_14___get__(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_14___get__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_14___get__ *)o;
+static int __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_15___get__(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_15___get__ *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_15___get__ *)o;
   PyObject* tmp;
   tmp = ((PyObject*)p->__pyx_v_self);
-  p->__pyx_v_self = ((struct __pyx_obj_5_cdec_Hypergraph *)Py_None); Py_INCREF(Py_None);
+  p->__pyx_v_self = ((struct __pyx_obj_4cdec_5_cdec_HypergraphEdge *)Py_None); Py_INCREF(Py_None);
   Py_XDECREF(tmp);
   return 0;
 }
 
-static PyMethodDef __pyx_methods_5_cdec___pyx_scope_struct_14___get__[] = {
+static PyMethodDef __pyx_methods_4cdec_5_cdec___pyx_scope_struct_15___get__[] = {
   {0, 0, 0, 0}
 };
 
-static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_14___get__ = {
+static PyTypeObject __pyx_type_4cdec_5_cdec___pyx_scope_struct_15___get__ = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.__pyx_scope_struct_14___get__"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_14___get__), /*tp_basicsize*/
+  __Pyx_NAMESTR("cdec._cdec.__pyx_scope_struct_15___get__"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_15___get__), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec___pyx_scope_struct_14___get__, /*tp_dealloc*/
+  __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_15___get__, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -21233,13 +21291,13 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_14___get__ = {
   0, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_5_cdec___pyx_scope_struct_14___get__, /*tp_traverse*/
-  __pyx_tp_clear_5_cdec___pyx_scope_struct_14___get__, /*tp_clear*/
+  __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_15___get__, /*tp_traverse*/
+  __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_15___get__, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec___pyx_scope_struct_14___get__, /*tp_methods*/
+  __pyx_methods_4cdec_5_cdec___pyx_scope_struct_15___get__, /*tp_methods*/
   0, /*tp_members*/
   0, /*tp_getset*/
   0, /*tp_base*/
@@ -21249,7 +21307,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_14___get__ = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec___pyx_scope_struct_14___get__, /*tp_new*/
+  __pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_15___get__, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -21263,65 +21321,61 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_14___get__ = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec_TRule(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_4cdec_5_cdec_NT(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_4cdec_5_cdec_NT *p;
   PyObject *o;
   o = (*t->tp_alloc)(t, 0);
   if (unlikely(!o)) return 0;
+  p = ((struct __pyx_obj_4cdec_5_cdec_NT *)o);
+  p->cat = ((PyObject*)Py_None); Py_INCREF(Py_None);
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec_TRule(PyObject *o) {
-  {
-    PyObject *etype, *eval, *etb;
-    PyErr_Fetch(&etype, &eval, &etb);
-    ++Py_REFCNT(o);
-    __pyx_pw_5_cdec_5TRule_3__dealloc__(o);
-    if (PyErr_Occurred()) PyErr_WriteUnraisable(o);
-    --Py_REFCNT(o);
-    PyErr_Restore(etype, eval, etb);
-  }
+static void __pyx_tp_dealloc_4cdec_5_cdec_NT(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec_NT *p = (struct __pyx_obj_4cdec_5_cdec_NT *)o;
+  PyObject_GC_UnTrack(o);
+  Py_CLEAR(p->cat);
   (*Py_TYPE(o)->tp_free)(o);
 }
 
-static PyObject *__pyx_getprop_5_cdec_5TRule_arity(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_5_cdec_5TRule_5arity_1__get__(o);
-}
-
-static PyObject *__pyx_getprop_5_cdec_5TRule_f(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_5_cdec_5TRule_1f_1__get__(o);
+static int __pyx_tp_traverse_4cdec_5_cdec_NT(PyObject *o, visitproc v, void *a) {
+  int e;
+  struct __pyx_obj_4cdec_5_cdec_NT *p = (struct __pyx_obj_4cdec_5_cdec_NT *)o;
+  if (p->cat) {
+    e = (*v)(p->cat, a); if (e) return e;
+  }
+  return 0;
 }
 
-static int __pyx_setprop_5_cdec_5TRule_f(PyObject *o, PyObject *v, CYTHON_UNUSED void *x) {
-  if (v) {
-    return __pyx_pw_5_cdec_5TRule_1f_3__set__(o, v);
-  }
-  else {
-    PyErr_SetString(PyExc_NotImplementedError, "__del__");
-    return -1;
-  }
+static int __pyx_tp_clear_4cdec_5_cdec_NT(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec_NT *p = (struct __pyx_obj_4cdec_5_cdec_NT *)o;
+  PyObject* tmp;
+  tmp = ((PyObject*)p->cat);
+  p->cat = ((PyObject*)Py_None); Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  return 0;
 }
 
-static PyObject *__pyx_getprop_5_cdec_5TRule_e(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_5_cdec_5TRule_1e_1__get__(o);
+static PyObject *__pyx_getprop_4cdec_5_cdec_2NT_cat(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_4cdec_5_cdec_2NT_3cat_1__get__(o);
 }
 
-static int __pyx_setprop_5_cdec_5TRule_e(PyObject *o, PyObject *v, CYTHON_UNUSED void *x) {
+static int __pyx_setprop_4cdec_5_cdec_2NT_cat(PyObject *o, PyObject *v, CYTHON_UNUSED void *x) {
   if (v) {
-    return __pyx_pw_5_cdec_5TRule_1e_3__set__(o, v);
+    return __pyx_pw_4cdec_5_cdec_2NT_3cat_3__set__(o, v);
   }
   else {
-    PyErr_SetString(PyExc_NotImplementedError, "__del__");
-    return -1;
+    return __pyx_pw_4cdec_5_cdec_2NT_3cat_5__del__(o);
   }
 }
 
-static PyObject *__pyx_getprop_5_cdec_5TRule_a(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_5_cdec_5TRule_1a_1__get__(o);
+static PyObject *__pyx_getprop_4cdec_5_cdec_2NT_ref(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_4cdec_5_cdec_2NT_3ref_1__get__(o);
 }
 
-static int __pyx_setprop_5_cdec_5TRule_a(PyObject *o, PyObject *v, CYTHON_UNUSED void *x) {
+static int __pyx_setprop_4cdec_5_cdec_2NT_ref(PyObject *o, PyObject *v, CYTHON_UNUSED void *x) {
   if (v) {
-    return __pyx_pw_5_cdec_5TRule_1a_4__set__(o, v);
+    return __pyx_pw_4cdec_5_cdec_2NT_3ref_3__set__(o, v);
   }
   else {
     PyErr_SetString(PyExc_NotImplementedError, "__del__");
@@ -21329,54 +21383,145 @@ static int __pyx_setprop_5_cdec_5TRule_a(PyObject *o, PyObject *v, CYTHON_UNUSED
   }
 }
 
-static PyObject *__pyx_getprop_5_cdec_5TRule_scores(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_5_cdec_5TRule_6scores_1__get__(o);
-}
+static PyMethodDef __pyx_methods_4cdec_5_cdec_NT[] = {
+  {0, 0, 0, 0}
+};
 
-static int __pyx_setprop_5_cdec_5TRule_scores(PyObject *o, PyObject *v, CYTHON_UNUSED void *x) {
-  if (v) {
-    return __pyx_pw_5_cdec_5TRule_6scores_3__set__(o, v);
-  }
-  else {
-    PyErr_SetString(PyExc_NotImplementedError, "__del__");
-    return -1;
+static struct PyGetSetDef __pyx_getsets_4cdec_5_cdec_NT[] = {
+  {(char *)"cat", __pyx_getprop_4cdec_5_cdec_2NT_cat, __pyx_setprop_4cdec_5_cdec_2NT_cat, 0, 0},
+  {(char *)"ref", __pyx_getprop_4cdec_5_cdec_2NT_ref, __pyx_setprop_4cdec_5_cdec_2NT_ref, 0, 0},
+  {0, 0, 0, 0, 0}
+};
+
+static PyTypeObject __pyx_type_4cdec_5_cdec_NT = {
+  PyVarObject_HEAD_INIT(0, 0)
+  __Pyx_NAMESTR("cdec._cdec.NT"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec_NT), /*tp_basicsize*/
+  0, /*tp_itemsize*/
+  __pyx_tp_dealloc_4cdec_5_cdec_NT, /*tp_dealloc*/
+  0, /*tp_print*/
+  0, /*tp_getattr*/
+  0, /*tp_setattr*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*tp_compare*/
+  #else
+  0, /*reserved*/
+  #endif
+  0, /*tp_repr*/
+  0, /*tp_as_number*/
+  0, /*tp_as_sequence*/
+  0, /*tp_as_mapping*/
+  0, /*tp_hash*/
+  0, /*tp_call*/
+  __pyx_pw_4cdec_5_cdec_2NT_3__str__, /*tp_str*/
+  0, /*tp_getattro*/
+  0, /*tp_setattro*/
+  0, /*tp_as_buffer*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
+  0, /*tp_doc*/
+  __pyx_tp_traverse_4cdec_5_cdec_NT, /*tp_traverse*/
+  __pyx_tp_clear_4cdec_5_cdec_NT, /*tp_clear*/
+  0, /*tp_richcompare*/
+  0, /*tp_weaklistoffset*/
+  0, /*tp_iter*/
+  0, /*tp_iternext*/
+  __pyx_methods_4cdec_5_cdec_NT, /*tp_methods*/
+  0, /*tp_members*/
+  __pyx_getsets_4cdec_5_cdec_NT, /*tp_getset*/
+  0, /*tp_base*/
+  0, /*tp_dict*/
+  0, /*tp_descr_get*/
+  0, /*tp_descr_set*/
+  0, /*tp_dictoffset*/
+  __pyx_pw_4cdec_5_cdec_2NT_1__init__, /*tp_init*/
+  0, /*tp_alloc*/
+  __pyx_tp_new_4cdec_5_cdec_NT, /*tp_new*/
+  0, /*tp_free*/
+  0, /*tp_is_gc*/
+  0, /*tp_bases*/
+  0, /*tp_mro*/
+  0, /*tp_cache*/
+  0, /*tp_subclasses*/
+  0, /*tp_weaklist*/
+  0, /*tp_del*/
+  #if PY_VERSION_HEX >= 0x02060000
+  0, /*tp_version_tag*/
+  #endif
+};
+
+static PyObject *__pyx_tp_new_4cdec_5_cdec_Lattice(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  PyObject *o;
+  o = (*t->tp_alloc)(t, 0);
+  if (unlikely(!o)) return 0;
+  if (unlikely(__pyx_pw_4cdec_5_cdec_7Lattice_1__cinit__(o, __pyx_empty_tuple, NULL) < 0)) {
+    Py_DECREF(o); o = 0;
   }
+  return o;
 }
 
-static PyObject *__pyx_getprop_5_cdec_5TRule_lhs(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_5_cdec_5TRule_3lhs_1__get__(o);
+static void __pyx_tp_dealloc_4cdec_5_cdec_Lattice(PyObject *o) {
+  {
+    PyObject *etype, *eval, *etb;
+    PyErr_Fetch(&etype, &eval, &etb);
+    ++Py_REFCNT(o);
+    __pyx_pw_4cdec_5_cdec_7Lattice_5__dealloc__(o);
+    if (PyErr_Occurred()) PyErr_WriteUnraisable(o);
+    --Py_REFCNT(o);
+    PyErr_Restore(etype, eval, etb);
+  }
+  (*Py_TYPE(o)->tp_free)(o);
+}
+static PyObject *__pyx_sq_item_4cdec_5_cdec_Lattice(PyObject *o, Py_ssize_t i) {
+  PyObject *r;
+  PyObject *x = PyInt_FromSsize_t(i); if(!x) return 0;
+  r = Py_TYPE(o)->tp_as_mapping->mp_subscript(o, x);
+  Py_DECREF(x);
+  return r;
 }
 
-static int __pyx_setprop_5_cdec_5TRule_lhs(PyObject *o, PyObject *v, CYTHON_UNUSED void *x) {
+static int __pyx_mp_ass_subscript_4cdec_5_cdec_Lattice(PyObject *o, PyObject *i, PyObject *v) {
   if (v) {
-    return __pyx_pw_5_cdec_5TRule_3lhs_3__set__(o, v);
+    return __pyx_pw_4cdec_5_cdec_7Lattice_9__setitem__(o, i, v);
   }
   else {
-    PyErr_SetString(PyExc_NotImplementedError, "__del__");
+    PyErr_Format(PyExc_NotImplementedError,
+      "Subscript deletion not supported by %s", Py_TYPE(o)->tp_name);
     return -1;
   }
 }
 
-static PyMethodDef __pyx_methods_5_cdec_TRule[] = {
+static PyMethodDef __pyx_methods_4cdec_5_cdec_Lattice[] = {
+  {__Pyx_NAMESTR("__unicode__"), (PyCFunction)__pyx_pw_4cdec_5_cdec_7Lattice_15__unicode__, METH_NOARGS, __Pyx_DOCSTR(0)},
+  {__Pyx_NAMESTR("todot"), (PyCFunction)__pyx_pw_4cdec_5_cdec_7Lattice_20todot, METH_NOARGS, __Pyx_DOCSTR(__pyx_doc_4cdec_5_cdec_7Lattice_19todot)},
+  {__Pyx_NAMESTR("as_hypergraph"), (PyCFunction)__pyx_pw_4cdec_5_cdec_7Lattice_22as_hypergraph, METH_NOARGS, __Pyx_DOCSTR(__pyx_doc_4cdec_5_cdec_7Lattice_21as_hypergraph)},
   {0, 0, 0, 0}
 };
 
-static struct PyGetSetDef __pyx_getsets_5_cdec_TRule[] = {
-  {(char *)"arity", __pyx_getprop_5_cdec_5TRule_arity, 0, 0, 0},
-  {(char *)"f", __pyx_getprop_5_cdec_5TRule_f, __pyx_setprop_5_cdec_5TRule_f, 0, 0},
-  {(char *)"e", __pyx_getprop_5_cdec_5TRule_e, __pyx_setprop_5_cdec_5TRule_e, 0, 0},
-  {(char *)"a", __pyx_getprop_5_cdec_5TRule_a, __pyx_setprop_5_cdec_5TRule_a, 0, 0},
-  {(char *)"scores", __pyx_getprop_5_cdec_5TRule_scores, __pyx_setprop_5_cdec_5TRule_scores, 0, 0},
-  {(char *)"lhs", __pyx_getprop_5_cdec_5TRule_lhs, __pyx_setprop_5_cdec_5TRule_lhs, 0, 0},
-  {0, 0, 0, 0, 0}
+static PySequenceMethods __pyx_tp_as_sequence_Lattice = {
+  __pyx_pw_4cdec_5_cdec_7Lattice_11__len__, /*sq_length*/
+  0, /*sq_concat*/
+  0, /*sq_repeat*/
+  __pyx_sq_item_4cdec_5_cdec_Lattice, /*sq_item*/
+  0, /*sq_slice*/
+  0, /*sq_ass_item*/
+  0, /*sq_ass_slice*/
+  0, /*sq_contains*/
+  0, /*sq_inplace_concat*/
+  0, /*sq_inplace_repeat*/
+};
+
+static PyMappingMethods __pyx_tp_as_mapping_Lattice = {
+  __pyx_pw_4cdec_5_cdec_7Lattice_11__len__, /*mp_length*/
+  __pyx_pw_4cdec_5_cdec_7Lattice_7__getitem__, /*mp_subscript*/
+  __pyx_mp_ass_subscript_4cdec_5_cdec_Lattice, /*mp_ass_subscript*/
 };
 
-static PyTypeObject __pyx_type_5_cdec_TRule = {
+static PyTypeObject __pyx_type_4cdec_5_cdec_Lattice = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.TRule"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec_TRule), /*tp_basicsize*/
+  __Pyx_NAMESTR("cdec._cdec.Lattice"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec_Lattice), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec_TRule, /*tp_dealloc*/
+  __pyx_tp_dealloc_4cdec_5_cdec_Lattice, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -21387,11 +21532,11 @@ static PyTypeObject __pyx_type_5_cdec_TRule = {
   #endif
   0, /*tp_repr*/
   0, /*tp_as_number*/
-  0, /*tp_as_sequence*/
-  0, /*tp_as_mapping*/
+  &__pyx_tp_as_sequence_Lattice, /*tp_as_sequence*/
+  &__pyx_tp_as_mapping_Lattice, /*tp_as_mapping*/
   0, /*tp_hash*/
   0, /*tp_call*/
-  __pyx_pw_5_cdec_5TRule_5__str__, /*tp_str*/
+  __pyx_pw_4cdec_5_cdec_7Lattice_13__str__, /*tp_str*/
   0, /*tp_getattro*/
   0, /*tp_setattro*/
   0, /*tp_as_buffer*/
@@ -21401,19 +21546,19 @@ static PyTypeObject __pyx_type_5_cdec_TRule = {
   0, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
-  0, /*tp_iter*/
+  __pyx_pw_4cdec_5_cdec_7Lattice_17__iter__, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec_TRule, /*tp_methods*/
+  __pyx_methods_4cdec_5_cdec_Lattice, /*tp_methods*/
   0, /*tp_members*/
-  __pyx_getsets_5_cdec_TRule, /*tp_getset*/
+  0, /*tp_getset*/
   0, /*tp_base*/
   0, /*tp_dict*/
   0, /*tp_descr_get*/
   0, /*tp_descr_set*/
   0, /*tp_dictoffset*/
-  __pyx_pw_5_cdec_5TRule_1__init__, /*tp_init*/
+  __pyx_pw_4cdec_5_cdec_7Lattice_3__init__, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec_TRule, /*tp_new*/
+  __pyx_tp_new_4cdec_5_cdec_Lattice, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -21427,81 +21572,113 @@ static PyTypeObject __pyx_type_5_cdec_TRule = {
   #endif
 };
 
-static struct __pyx_obj_5_cdec___pyx_scope_struct_3_genexpr *__pyx_freelist_5_cdec___pyx_scope_struct_3_genexpr[8];
-static int __pyx_freecount_5_cdec___pyx_scope_struct_3_genexpr = 0;
+static struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_23__make_config *__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_23__make_config[8];
+static int __pyx_freecount_4cdec_5_cdec___pyx_scope_struct_23__make_config = 0;
 
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_3_genexpr(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_3_genexpr *p;
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_23__make_config(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_23__make_config *p;
   PyObject *o;
-  if (likely((__pyx_freecount_5_cdec___pyx_scope_struct_3_genexpr > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_3_genexpr)))) {
-    o = (PyObject*)__pyx_freelist_5_cdec___pyx_scope_struct_3_genexpr[--__pyx_freecount_5_cdec___pyx_scope_struct_3_genexpr];
-    memset(o, 0, sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_3_genexpr));
+  if (likely((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_23__make_config > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_23__make_config)))) {
+    o = (PyObject*)__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_23__make_config[--__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_23__make_config];
+    memset(o, 0, sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_23__make_config));
     PyObject_INIT(o, t);
     PyObject_GC_Track(o);
   } else {
     o = (*t->tp_alloc)(t, 0);
     if (unlikely(!o)) return 0;
   }
-  p = ((struct __pyx_obj_5_cdec___pyx_scope_struct_3_genexpr *)o);
-  p->__pyx_outer_scope = 0;
-  p->__pyx_v_w = 0;
+  p = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_23__make_config *)o);
+  p->__pyx_v_config = 0;
+  p->__pyx_v_info = 0;
+  p->__pyx_v_key = 0;
+  p->__pyx_v_name = 0;
+  p->__pyx_v_value = 0;
   p->__pyx_t_0 = 0;
+  p->__pyx_t_1 = 0;
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec___pyx_scope_struct_3_genexpr(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_3_genexpr *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_3_genexpr *)o;
+static void __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_23__make_config(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_23__make_config *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_23__make_config *)o;
   PyObject_GC_UnTrack(o);
-  Py_CLEAR(p->__pyx_outer_scope);
-  Py_CLEAR(p->__pyx_v_w);
+  Py_CLEAR(p->__pyx_v_config);
+  Py_CLEAR(p->__pyx_v_info);
+  Py_CLEAR(p->__pyx_v_key);
+  Py_CLEAR(p->__pyx_v_name);
+  Py_CLEAR(p->__pyx_v_value);
   Py_CLEAR(p->__pyx_t_0);
-  if ((__pyx_freecount_5_cdec___pyx_scope_struct_3_genexpr < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_3_genexpr))) {
-    __pyx_freelist_5_cdec___pyx_scope_struct_3_genexpr[__pyx_freecount_5_cdec___pyx_scope_struct_3_genexpr++] = ((struct __pyx_obj_5_cdec___pyx_scope_struct_3_genexpr *)o);
+  Py_CLEAR(p->__pyx_t_1);
+  if ((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_23__make_config < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_23__make_config))) {
+    __pyx_freelist_4cdec_5_cdec___pyx_scope_struct_23__make_config[__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_23__make_config++] = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_23__make_config *)o);
   } else {
     (*Py_TYPE(o)->tp_free)(o);
   }
 }
 
-static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_3_genexpr(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_23__make_config(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_5_cdec___pyx_scope_struct_3_genexpr *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_3_genexpr *)o;
-  if (p->__pyx_outer_scope) {
-    e = (*v)(((PyObject*)p->__pyx_outer_scope), a); if (e) return e;
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_23__make_config *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_23__make_config *)o;
+  if (p->__pyx_v_config) {
+    e = (*v)(p->__pyx_v_config, a); if (e) return e;
   }
-  if (p->__pyx_v_w) {
-    e = (*v)(p->__pyx_v_w, a); if (e) return e;
+  if (p->__pyx_v_info) {
+    e = (*v)(p->__pyx_v_info, a); if (e) return e;
+  }
+  if (p->__pyx_v_key) {
+    e = (*v)(p->__pyx_v_key, a); if (e) return e;
+  }
+  if (p->__pyx_v_name) {
+    e = (*v)(p->__pyx_v_name, a); if (e) return e;
+  }
+  if (p->__pyx_v_value) {
+    e = (*v)(p->__pyx_v_value, a); if (e) return e;
   }
   if (p->__pyx_t_0) {
     e = (*v)(p->__pyx_t_0, a); if (e) return e;
   }
+  if (p->__pyx_t_1) {
+    e = (*v)(p->__pyx_t_1, a); if (e) return e;
+  }
   return 0;
 }
 
-static int __pyx_tp_clear_5_cdec___pyx_scope_struct_3_genexpr(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_3_genexpr *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_3_genexpr *)o;
+static int __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_23__make_config(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_23__make_config *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_23__make_config *)o;
   PyObject* tmp;
-  tmp = ((PyObject*)p->__pyx_outer_scope);
-  p->__pyx_outer_scope = ((struct __pyx_obj_5_cdec___pyx_scope_struct_2__phrase *)Py_None); Py_INCREF(Py_None);
+  tmp = ((PyObject*)p->__pyx_v_config);
+  p->__pyx_v_config = Py_None; Py_INCREF(Py_None);
   Py_XDECREF(tmp);
-  tmp = ((PyObject*)p->__pyx_v_w);
-  p->__pyx_v_w = Py_None; Py_INCREF(Py_None);
+  tmp = ((PyObject*)p->__pyx_v_info);
+  p->__pyx_v_info = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->__pyx_v_key);
+  p->__pyx_v_key = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->__pyx_v_name);
+  p->__pyx_v_name = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->__pyx_v_value);
+  p->__pyx_v_value = Py_None; Py_INCREF(Py_None);
   Py_XDECREF(tmp);
   tmp = ((PyObject*)p->__pyx_t_0);
   p->__pyx_t_0 = Py_None; Py_INCREF(Py_None);
   Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->__pyx_t_1);
+  p->__pyx_t_1 = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
   return 0;
 }
 
-static PyMethodDef __pyx_methods_5_cdec___pyx_scope_struct_3_genexpr[] = {
+static PyMethodDef __pyx_methods_4cdec_5_cdec___pyx_scope_struct_23__make_config[] = {
   {0, 0, 0, 0}
 };
 
-static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_3_genexpr = {
+static PyTypeObject __pyx_type_4cdec_5_cdec___pyx_scope_struct_23__make_config = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.__pyx_scope_struct_3_genexpr"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_3_genexpr), /*tp_basicsize*/
+  __Pyx_NAMESTR("cdec._cdec.__pyx_scope_struct_23__make_config"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_23__make_config), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec___pyx_scope_struct_3_genexpr, /*tp_dealloc*/
+  __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_23__make_config, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -21522,13 +21699,13 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_3_genexpr = {
   0, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_5_cdec___pyx_scope_struct_3_genexpr, /*tp_traverse*/
-  __pyx_tp_clear_5_cdec___pyx_scope_struct_3_genexpr, /*tp_clear*/
+  __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_23__make_config, /*tp_traverse*/
+  __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_23__make_config, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec___pyx_scope_struct_3_genexpr, /*tp_methods*/
+  __pyx_methods_4cdec_5_cdec___pyx_scope_struct_23__make_config, /*tp_methods*/
   0, /*tp_members*/
   0, /*tp_getset*/
   0, /*tp_base*/
@@ -21538,7 +21715,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_3_genexpr = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec___pyx_scope_struct_3_genexpr, /*tp_new*/
+  __pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_23__make_config, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -21551,23 +21728,121 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_3_genexpr = {
   0, /*tp_version_tag*/
   #endif
 };
+static struct __pyx_vtabstruct_4cdec_5_cdec_HypergraphEdge __pyx_vtable_4cdec_5_cdec_HypergraphEdge;
 
-static PyObject *__pyx_tp_new_5_cdec_MRule(PyTypeObject *t, PyObject *a, PyObject *k) {
-  PyObject *o = __pyx_tp_new_5_cdec_TRule(t, a, k);
+static PyObject *__pyx_tp_new_4cdec_5_cdec_HypergraphEdge(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_4cdec_5_cdec_HypergraphEdge *p;
+  PyObject *o;
+  o = (*t->tp_alloc)(t, 0);
   if (unlikely(!o)) return 0;
+  p = ((struct __pyx_obj_4cdec_5_cdec_HypergraphEdge *)o);
+  p->__pyx_vtab = __pyx_vtabptr_4cdec_5_cdec_HypergraphEdge;
+  p->trule = ((struct __pyx_obj_4cdec_5_cdec_TRule *)Py_None); Py_INCREF(Py_None);
   return o;
 }
 
-static PyMethodDef __pyx_methods_5_cdec_MRule[] = {
+static void __pyx_tp_dealloc_4cdec_5_cdec_HypergraphEdge(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec_HypergraphEdge *p = (struct __pyx_obj_4cdec_5_cdec_HypergraphEdge *)o;
+  PyObject_GC_UnTrack(o);
+  Py_CLEAR(p->trule);
+  (*Py_TYPE(o)->tp_free)(o);
+}
+
+static int __pyx_tp_traverse_4cdec_5_cdec_HypergraphEdge(PyObject *o, visitproc v, void *a) {
+  int e;
+  struct __pyx_obj_4cdec_5_cdec_HypergraphEdge *p = (struct __pyx_obj_4cdec_5_cdec_HypergraphEdge *)o;
+  if (p->trule) {
+    e = (*v)(((PyObject*)p->trule), a); if (e) return e;
+  }
+  return 0;
+}
+
+static int __pyx_tp_clear_4cdec_5_cdec_HypergraphEdge(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec_HypergraphEdge *p = (struct __pyx_obj_4cdec_5_cdec_HypergraphEdge *)o;
+  PyObject* tmp;
+  tmp = ((PyObject*)p->trule);
+  p->trule = ((struct __pyx_obj_4cdec_5_cdec_TRule *)Py_None); Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  return 0;
+}
+
+static PyObject *__pyx_getprop_4cdec_5_cdec_14HypergraphEdge_head_node(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_4cdec_5_cdec_14HypergraphEdge_9head_node_1__get__(o);
+}
+
+static PyObject *__pyx_getprop_4cdec_5_cdec_14HypergraphEdge_tail_nodes(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_4cdec_5_cdec_14HypergraphEdge_10tail_nodes_1__get__(o);
+}
+
+static PyObject *__pyx_getprop_4cdec_5_cdec_14HypergraphEdge_span(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_4cdec_5_cdec_14HypergraphEdge_4span_1__get__(o);
+}
+
+static PyObject *__pyx_getprop_4cdec_5_cdec_14HypergraphEdge_src_span(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_4cdec_5_cdec_14HypergraphEdge_8src_span_1__get__(o);
+}
+
+static PyObject *__pyx_getprop_4cdec_5_cdec_14HypergraphEdge_feature_values(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_4cdec_5_cdec_14HypergraphEdge_14feature_values_1__get__(o);
+}
+
+static PyObject *__pyx_getprop_4cdec_5_cdec_14HypergraphEdge_prob(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_4cdec_5_cdec_14HypergraphEdge_4prob_1__get__(o);
+}
+
+static PyObject *__pyx_getprop_4cdec_5_cdec_14HypergraphEdge_trule(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_4cdec_5_cdec_14HypergraphEdge_5trule_1__get__(o);
+}
+
+static int __pyx_setprop_4cdec_5_cdec_14HypergraphEdge_trule(PyObject *o, PyObject *v, CYTHON_UNUSED void *x) {
+  if (v) {
+    return __pyx_pw_4cdec_5_cdec_14HypergraphEdge_5trule_3__set__(o, v);
+  }
+  else {
+    return __pyx_pw_4cdec_5_cdec_14HypergraphEdge_5trule_5__del__(o);
+  }
+}
+
+static PyMethodDef __pyx_methods_4cdec_5_cdec_HypergraphEdge[] = {
   {0, 0, 0, 0}
 };
 
-static PyTypeObject __pyx_type_5_cdec_MRule = {
+static struct PyGetSetDef __pyx_getsets_4cdec_5_cdec_HypergraphEdge[] = {
+  {(char *)"head_node", __pyx_getprop_4cdec_5_cdec_14HypergraphEdge_head_node, 0, 0, 0},
+  {(char *)"tail_nodes", __pyx_getprop_4cdec_5_cdec_14HypergraphEdge_tail_nodes, 0, 0, 0},
+  {(char *)"span", __pyx_getprop_4cdec_5_cdec_14HypergraphEdge_span, 0, 0, 0},
+  {(char *)"src_span", __pyx_getprop_4cdec_5_cdec_14HypergraphEdge_src_span, 0, 0, 0},
+  {(char *)"feature_values", __pyx_getprop_4cdec_5_cdec_14HypergraphEdge_feature_values, 0, 0, 0},
+  {(char *)"prob", __pyx_getprop_4cdec_5_cdec_14HypergraphEdge_prob, 0, 0, 0},
+  {(char *)"trule", __pyx_getprop_4cdec_5_cdec_14HypergraphEdge_trule, __pyx_setprop_4cdec_5_cdec_14HypergraphEdge_trule, 0, 0},
+  {0, 0, 0, 0, 0}
+};
+
+static PySequenceMethods __pyx_tp_as_sequence_HypergraphEdge = {
+  __pyx_pw_4cdec_5_cdec_14HypergraphEdge_1__len__, /*sq_length*/
+  0, /*sq_concat*/
+  0, /*sq_repeat*/
+  0, /*sq_item*/
+  0, /*sq_slice*/
+  0, /*sq_ass_item*/
+  0, /*sq_ass_slice*/
+  0, /*sq_contains*/
+  0, /*sq_inplace_concat*/
+  0, /*sq_inplace_repeat*/
+};
+
+static PyMappingMethods __pyx_tp_as_mapping_HypergraphEdge = {
+  __pyx_pw_4cdec_5_cdec_14HypergraphEdge_1__len__, /*mp_length*/
+  0, /*mp_subscript*/
+  0, /*mp_ass_subscript*/
+};
+
+static PyTypeObject __pyx_type_4cdec_5_cdec_HypergraphEdge = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.MRule"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec_MRule), /*tp_basicsize*/
+  __Pyx_NAMESTR("cdec._cdec.HypergraphEdge"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec_HypergraphEdge), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec_TRule, /*tp_dealloc*/
+  __pyx_tp_dealloc_4cdec_5_cdec_HypergraphEdge, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -21578,37 +21853,33 @@ static PyTypeObject __pyx_type_5_cdec_MRule = {
   #endif
   0, /*tp_repr*/
   0, /*tp_as_number*/
-  0, /*tp_as_sequence*/
-  0, /*tp_as_mapping*/
+  &__pyx_tp_as_sequence_HypergraphEdge, /*tp_as_sequence*/
+  &__pyx_tp_as_mapping_HypergraphEdge, /*tp_as_mapping*/
   0, /*tp_hash*/
   0, /*tp_call*/
-  #if CYTHON_COMPILING_IN_PYPY
-  __pyx_pw_5_cdec_5TRule_5__str__, /*tp_str*/
-  #else
   0, /*tp_str*/
-  #endif
   0, /*tp_getattro*/
   0, /*tp_setattro*/
   0, /*tp_as_buffer*/
-  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE, /*tp_flags*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  0, /*tp_traverse*/
-  0, /*tp_clear*/
-  0, /*tp_richcompare*/
+  __pyx_tp_traverse_4cdec_5_cdec_HypergraphEdge, /*tp_traverse*/
+  __pyx_tp_clear_4cdec_5_cdec_HypergraphEdge, /*tp_clear*/
+  __pyx_pw_4cdec_5_cdec_14HypergraphEdge_3__richcmp__, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec_MRule, /*tp_methods*/
+  __pyx_methods_4cdec_5_cdec_HypergraphEdge, /*tp_methods*/
   0, /*tp_members*/
-  0, /*tp_getset*/
+  __pyx_getsets_4cdec_5_cdec_HypergraphEdge, /*tp_getset*/
   0, /*tp_base*/
   0, /*tp_dict*/
   0, /*tp_descr_get*/
   0, /*tp_descr_set*/
   0, /*tp_dictoffset*/
-  __pyx_pw_5_cdec_5MRule_1__init__, /*tp_init*/
+  0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec_MRule, /*tp_new*/
+  __pyx_tp_new_4cdec_5_cdec_HypergraphEdge, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -21622,38 +21893,65 @@ static PyTypeObject __pyx_type_5_cdec_MRule = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec_SegmentEvaluator(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_2__phrase *__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_2__phrase[8];
+static int __pyx_freecount_4cdec_5_cdec___pyx_scope_struct_2__phrase = 0;
+
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_2__phrase(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_2__phrase *p;
   PyObject *o;
-  o = (*t->tp_alloc)(t, 0);
-  if (unlikely(!o)) return 0;
+  if (likely((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_2__phrase > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_2__phrase)))) {
+    o = (PyObject*)__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_2__phrase[--__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_2__phrase];
+    memset(o, 0, sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_2__phrase));
+    PyObject_INIT(o, t);
+    PyObject_GC_Track(o);
+  } else {
+    o = (*t->tp_alloc)(t, 0);
+    if (unlikely(!o)) return 0;
+  }
+  p = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_2__phrase *)o);
+  p->__pyx_v_phrase = 0;
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec_SegmentEvaluator(PyObject *o) {
-  {
-    PyObject *etype, *eval, *etb;
-    PyErr_Fetch(&etype, &eval, &etb);
-    ++Py_REFCNT(o);
-    __pyx_pw_5_cdec_16SegmentEvaluator_1__dealloc__(o);
-    if (PyErr_Occurred()) PyErr_WriteUnraisable(o);
-    --Py_REFCNT(o);
-    PyErr_Restore(etype, eval, etb);
+static void __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_2__phrase(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_2__phrase *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_2__phrase *)o;
+  PyObject_GC_UnTrack(o);
+  Py_CLEAR(p->__pyx_v_phrase);
+  if ((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_2__phrase < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_2__phrase))) {
+    __pyx_freelist_4cdec_5_cdec___pyx_scope_struct_2__phrase[__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_2__phrase++] = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_2__phrase *)o);
+  } else {
+    (*Py_TYPE(o)->tp_free)(o);
   }
-  (*Py_TYPE(o)->tp_free)(o);
 }
 
-static PyMethodDef __pyx_methods_5_cdec_SegmentEvaluator[] = {
-  {__Pyx_NAMESTR("evaluate"), (PyCFunction)__pyx_pw_5_cdec_16SegmentEvaluator_3evaluate, METH_O, __Pyx_DOCSTR(__pyx_doc_5_cdec_16SegmentEvaluator_2evaluate)},
-  {__Pyx_NAMESTR("candidate_set"), (PyCFunction)__pyx_pw_5_cdec_16SegmentEvaluator_5candidate_set, METH_NOARGS, __Pyx_DOCSTR(__pyx_doc_5_cdec_16SegmentEvaluator_4candidate_set)},
+static int __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_2__phrase(PyObject *o, visitproc v, void *a) {
+  int e;
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_2__phrase *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_2__phrase *)o;
+  if (p->__pyx_v_phrase) {
+    e = (*v)(p->__pyx_v_phrase, a); if (e) return e;
+  }
+  return 0;
+}
+
+static int __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_2__phrase(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_2__phrase *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_2__phrase *)o;
+  PyObject* tmp;
+  tmp = ((PyObject*)p->__pyx_v_phrase);
+  p->__pyx_v_phrase = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  return 0;
+}
+
+static PyMethodDef __pyx_methods_4cdec_5_cdec___pyx_scope_struct_2__phrase[] = {
   {0, 0, 0, 0}
 };
 
-static PyTypeObject __pyx_type_5_cdec_SegmentEvaluator = {
+static PyTypeObject __pyx_type_4cdec_5_cdec___pyx_scope_struct_2__phrase = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.SegmentEvaluator"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec_SegmentEvaluator), /*tp_basicsize*/
+  __Pyx_NAMESTR("cdec._cdec.__pyx_scope_struct_2__phrase"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_2__phrase), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec_SegmentEvaluator, /*tp_dealloc*/
+  __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_2__phrase, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -21672,15 +21970,15 @@ static PyTypeObject __pyx_type_5_cdec_SegmentEvaluator = {
   0, /*tp_getattro*/
   0, /*tp_setattro*/
   0, /*tp_as_buffer*/
-  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE, /*tp_flags*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  0, /*tp_traverse*/
-  0, /*tp_clear*/
+  __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_2__phrase, /*tp_traverse*/
+  __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_2__phrase, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec_SegmentEvaluator, /*tp_methods*/
+  __pyx_methods_4cdec_5_cdec___pyx_scope_struct_2__phrase, /*tp_methods*/
   0, /*tp_members*/
   0, /*tp_getset*/
   0, /*tp_base*/
@@ -21690,7 +21988,7 @@ static PyTypeObject __pyx_type_5_cdec_SegmentEvaluator = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec_SegmentEvaluator, /*tp_new*/
+  __pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_2__phrase, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -21704,81 +22002,65 @@ static PyTypeObject __pyx_type_5_cdec_SegmentEvaluator = {
   #endif
 };
 
-static struct __pyx_obj_5_cdec___pyx_scope_struct_25_genexpr *__pyx_freelist_5_cdec___pyx_scope_struct_25_genexpr[8];
-static int __pyx_freecount_5_cdec___pyx_scope_struct_25_genexpr = 0;
+static struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_13___get__ *__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_13___get__[8];
+static int __pyx_freecount_4cdec_5_cdec___pyx_scope_struct_13___get__ = 0;
 
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_25_genexpr(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_25_genexpr *p;
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_13___get__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_13___get__ *p;
   PyObject *o;
-  if (likely((__pyx_freecount_5_cdec___pyx_scope_struct_25_genexpr > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_25_genexpr)))) {
-    o = (PyObject*)__pyx_freelist_5_cdec___pyx_scope_struct_25_genexpr[--__pyx_freecount_5_cdec___pyx_scope_struct_25_genexpr];
-    memset(o, 0, sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_25_genexpr));
+  if (likely((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_13___get__ > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_13___get__)))) {
+    o = (PyObject*)__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_13___get__[--__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_13___get__];
+    memset(o, 0, sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_13___get__));
     PyObject_INIT(o, t);
     PyObject_GC_Track(o);
   } else {
     o = (*t->tp_alloc)(t, 0);
     if (unlikely(!o)) return 0;
   }
-  p = ((struct __pyx_obj_5_cdec___pyx_scope_struct_25_genexpr *)o);
-  p->__pyx_outer_scope = 0;
-  p->__pyx_v_kv = 0;
-  p->__pyx_t_0 = 0;
+  p = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_13___get__ *)o);
+  p->__pyx_v_self = 0;
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec___pyx_scope_struct_25_genexpr(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_25_genexpr *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_25_genexpr *)o;
+static void __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_13___get__(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_13___get__ *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_13___get__ *)o;
   PyObject_GC_UnTrack(o);
-  Py_CLEAR(p->__pyx_outer_scope);
-  Py_CLEAR(p->__pyx_v_kv);
-  Py_CLEAR(p->__pyx_t_0);
-  if ((__pyx_freecount_5_cdec___pyx_scope_struct_25_genexpr < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_25_genexpr))) {
-    __pyx_freelist_5_cdec___pyx_scope_struct_25_genexpr[__pyx_freecount_5_cdec___pyx_scope_struct_25_genexpr++] = ((struct __pyx_obj_5_cdec___pyx_scope_struct_25_genexpr *)o);
+  Py_CLEAR(p->__pyx_v_self);
+  if ((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_13___get__ < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_13___get__))) {
+    __pyx_freelist_4cdec_5_cdec___pyx_scope_struct_13___get__[__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_13___get__++] = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_13___get__ *)o);
   } else {
     (*Py_TYPE(o)->tp_free)(o);
   }
 }
 
-static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_25_genexpr(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_13___get__(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_5_cdec___pyx_scope_struct_25_genexpr *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_25_genexpr *)o;
-  if (p->__pyx_outer_scope) {
-    e = (*v)(((PyObject*)p->__pyx_outer_scope), a); if (e) return e;
-  }
-  if (p->__pyx_v_kv) {
-    e = (*v)(p->__pyx_v_kv, a); if (e) return e;
-  }
-  if (p->__pyx_t_0) {
-    e = (*v)(p->__pyx_t_0, a); if (e) return e;
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_13___get__ *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_13___get__ *)o;
+  if (p->__pyx_v_self) {
+    e = (*v)(((PyObject*)p->__pyx_v_self), a); if (e) return e;
   }
   return 0;
 }
 
-static int __pyx_tp_clear_5_cdec___pyx_scope_struct_25_genexpr(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_25_genexpr *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_25_genexpr *)o;
+static int __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_13___get__(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_13___get__ *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_13___get__ *)o;
   PyObject* tmp;
-  tmp = ((PyObject*)p->__pyx_outer_scope);
-  p->__pyx_outer_scope = ((struct __pyx_obj_5_cdec___pyx_scope_struct_24___init__ *)Py_None); Py_INCREF(Py_None);
-  Py_XDECREF(tmp);
-  tmp = ((PyObject*)p->__pyx_v_kv);
-  p->__pyx_v_kv = Py_None; Py_INCREF(Py_None);
-  Py_XDECREF(tmp);
-  tmp = ((PyObject*)p->__pyx_t_0);
-  p->__pyx_t_0 = Py_None; Py_INCREF(Py_None);
+  tmp = ((PyObject*)p->__pyx_v_self);
+  p->__pyx_v_self = ((struct __pyx_obj_4cdec_5_cdec_Hypergraph *)Py_None); Py_INCREF(Py_None);
   Py_XDECREF(tmp);
   return 0;
 }
 
-static PyMethodDef __pyx_methods_5_cdec___pyx_scope_struct_25_genexpr[] = {
+static PyMethodDef __pyx_methods_4cdec_5_cdec___pyx_scope_struct_13___get__[] = {
   {0, 0, 0, 0}
 };
 
-static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_25_genexpr = {
+static PyTypeObject __pyx_type_4cdec_5_cdec___pyx_scope_struct_13___get__ = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.__pyx_scope_struct_25_genexpr"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_25_genexpr), /*tp_basicsize*/
+  __Pyx_NAMESTR("cdec._cdec.__pyx_scope_struct_13___get__"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_13___get__), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec___pyx_scope_struct_25_genexpr, /*tp_dealloc*/
+  __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_13___get__, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -21799,13 +22081,13 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_25_genexpr = {
   0, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_5_cdec___pyx_scope_struct_25_genexpr, /*tp_traverse*/
-  __pyx_tp_clear_5_cdec___pyx_scope_struct_25_genexpr, /*tp_clear*/
+  __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_13___get__, /*tp_traverse*/
+  __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_13___get__, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec___pyx_scope_struct_25_genexpr, /*tp_methods*/
+  __pyx_methods_4cdec_5_cdec___pyx_scope_struct_13___get__, /*tp_methods*/
   0, /*tp_members*/
   0, /*tp_getset*/
   0, /*tp_base*/
@@ -21815,7 +22097,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_25_genexpr = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec___pyx_scope_struct_25_genexpr, /*tp_new*/
+  __pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_13___get__, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -21829,65 +22111,113 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_25_genexpr = {
   #endif
 };
 
-static struct __pyx_obj_5_cdec___pyx_scope_struct_19_todot *__pyx_freelist_5_cdec___pyx_scope_struct_19_todot[8];
-static int __pyx_freecount_5_cdec___pyx_scope_struct_19_todot = 0;
+static struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_20_lines *__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_20_lines[8];
+static int __pyx_freecount_4cdec_5_cdec___pyx_scope_struct_20_lines = 0;
 
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_19_todot(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_19_todot *p;
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_20_lines(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_20_lines *p;
   PyObject *o;
-  if (likely((__pyx_freecount_5_cdec___pyx_scope_struct_19_todot > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_19_todot)))) {
-    o = (PyObject*)__pyx_freelist_5_cdec___pyx_scope_struct_19_todot[--__pyx_freecount_5_cdec___pyx_scope_struct_19_todot];
-    memset(o, 0, sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_19_todot));
+  if (likely((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_20_lines > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_20_lines)))) {
+    o = (PyObject*)__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_20_lines[--__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_20_lines];
+    memset(o, 0, sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_20_lines));
     PyObject_INIT(o, t);
     PyObject_GC_Track(o);
   } else {
     o = (*t->tp_alloc)(t, 0);
     if (unlikely(!o)) return 0;
   }
-  p = ((struct __pyx_obj_5_cdec___pyx_scope_struct_19_todot *)o);
-  p->__pyx_v_self = 0;
+  p = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_20_lines *)o);
+  p->__pyx_outer_scope = 0;
+  p->__pyx_v_delta = 0;
+  p->__pyx_v_i = 0;
+  p->__pyx_v_label = 0;
+  p->__pyx_v_weight = 0;
+  p->__pyx_t_1 = 0;
+  p->__pyx_t_3 = 0;
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec___pyx_scope_struct_19_todot(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_19_todot *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_19_todot *)o;
+static void __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_20_lines(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_20_lines *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_20_lines *)o;
   PyObject_GC_UnTrack(o);
-  Py_CLEAR(p->__pyx_v_self);
-  if ((__pyx_freecount_5_cdec___pyx_scope_struct_19_todot < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_19_todot))) {
-    __pyx_freelist_5_cdec___pyx_scope_struct_19_todot[__pyx_freecount_5_cdec___pyx_scope_struct_19_todot++] = ((struct __pyx_obj_5_cdec___pyx_scope_struct_19_todot *)o);
+  Py_CLEAR(p->__pyx_outer_scope);
+  Py_CLEAR(p->__pyx_v_delta);
+  Py_CLEAR(p->__pyx_v_i);
+  Py_CLEAR(p->__pyx_v_label);
+  Py_CLEAR(p->__pyx_v_weight);
+  Py_CLEAR(p->__pyx_t_1);
+  Py_CLEAR(p->__pyx_t_3);
+  if ((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_20_lines < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_20_lines))) {
+    __pyx_freelist_4cdec_5_cdec___pyx_scope_struct_20_lines[__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_20_lines++] = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_20_lines *)o);
   } else {
     (*Py_TYPE(o)->tp_free)(o);
   }
 }
 
-static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_19_todot(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_20_lines(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_5_cdec___pyx_scope_struct_19_todot *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_19_todot *)o;
-  if (p->__pyx_v_self) {
-    e = (*v)(((PyObject*)p->__pyx_v_self), a); if (e) return e;
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_20_lines *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_20_lines *)o;
+  if (p->__pyx_outer_scope) {
+    e = (*v)(((PyObject*)p->__pyx_outer_scope), a); if (e) return e;
+  }
+  if (p->__pyx_v_delta) {
+    e = (*v)(p->__pyx_v_delta, a); if (e) return e;
+  }
+  if (p->__pyx_v_i) {
+    e = (*v)(p->__pyx_v_i, a); if (e) return e;
+  }
+  if (p->__pyx_v_label) {
+    e = (*v)(p->__pyx_v_label, a); if (e) return e;
+  }
+  if (p->__pyx_v_weight) {
+    e = (*v)(p->__pyx_v_weight, a); if (e) return e;
+  }
+  if (p->__pyx_t_1) {
+    e = (*v)(p->__pyx_t_1, a); if (e) return e;
+  }
+  if (p->__pyx_t_3) {
+    e = (*v)(p->__pyx_t_3, a); if (e) return e;
   }
   return 0;
 }
 
-static int __pyx_tp_clear_5_cdec___pyx_scope_struct_19_todot(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_19_todot *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_19_todot *)o;
+static int __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_20_lines(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_20_lines *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_20_lines *)o;
   PyObject* tmp;
-  tmp = ((PyObject*)p->__pyx_v_self);
-  p->__pyx_v_self = ((struct __pyx_obj_5_cdec_Lattice *)Py_None); Py_INCREF(Py_None);
+  tmp = ((PyObject*)p->__pyx_outer_scope);
+  p->__pyx_outer_scope = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_19_todot *)Py_None); Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->__pyx_v_delta);
+  p->__pyx_v_delta = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->__pyx_v_i);
+  p->__pyx_v_i = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->__pyx_v_label);
+  p->__pyx_v_label = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->__pyx_v_weight);
+  p->__pyx_v_weight = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->__pyx_t_1);
+  p->__pyx_t_1 = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->__pyx_t_3);
+  p->__pyx_t_3 = Py_None; Py_INCREF(Py_None);
   Py_XDECREF(tmp);
   return 0;
 }
 
-static PyMethodDef __pyx_methods_5_cdec___pyx_scope_struct_19_todot[] = {
+static PyMethodDef __pyx_methods_4cdec_5_cdec___pyx_scope_struct_20_lines[] = {
   {0, 0, 0, 0}
 };
 
-static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_19_todot = {
+static PyTypeObject __pyx_type_4cdec_5_cdec___pyx_scope_struct_20_lines = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.__pyx_scope_struct_19_todot"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_19_todot), /*tp_basicsize*/
+  __Pyx_NAMESTR("cdec._cdec.__pyx_scope_struct_20_lines"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_20_lines), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec___pyx_scope_struct_19_todot, /*tp_dealloc*/
+  __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_20_lines, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -21908,13 +22238,96 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_19_todot = {
   0, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_5_cdec___pyx_scope_struct_19_todot, /*tp_traverse*/
-  __pyx_tp_clear_5_cdec___pyx_scope_struct_19_todot, /*tp_clear*/
+  __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_20_lines, /*tp_traverse*/
+  __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_20_lines, /*tp_clear*/
+  0, /*tp_richcompare*/
+  0, /*tp_weaklistoffset*/
+  0, /*tp_iter*/
+  0, /*tp_iternext*/
+  __pyx_methods_4cdec_5_cdec___pyx_scope_struct_20_lines, /*tp_methods*/
+  0, /*tp_members*/
+  0, /*tp_getset*/
+  0, /*tp_base*/
+  0, /*tp_dict*/
+  0, /*tp_descr_get*/
+  0, /*tp_descr_set*/
+  0, /*tp_dictoffset*/
+  0, /*tp_init*/
+  0, /*tp_alloc*/
+  __pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_20_lines, /*tp_new*/
+  0, /*tp_free*/
+  0, /*tp_is_gc*/
+  0, /*tp_bases*/
+  0, /*tp_mro*/
+  0, /*tp_cache*/
+  0, /*tp_subclasses*/
+  0, /*tp_weaklist*/
+  0, /*tp_del*/
+  #if PY_VERSION_HEX >= 0x02060000
+  0, /*tp_version_tag*/
+  #endif
+};
+
+static PyObject *__pyx_tp_new_4cdec_5_cdec_Scorer(PyTypeObject *t, PyObject *a, PyObject *k) {
+  PyObject *o;
+  o = (*t->tp_alloc)(t, 0);
+  if (unlikely(!o)) return 0;
+  if (unlikely(__pyx_pw_4cdec_5_cdec_6Scorer_1__cinit__(o, a, k) < 0)) {
+    Py_DECREF(o); o = 0;
+  }
+  return o;
+}
+
+static void __pyx_tp_dealloc_4cdec_5_cdec_Scorer(PyObject *o) {
+  {
+    PyObject *etype, *eval, *etb;
+    PyErr_Fetch(&etype, &eval, &etb);
+    ++Py_REFCNT(o);
+    __pyx_pw_4cdec_5_cdec_6Scorer_3__dealloc__(o);
+    if (PyErr_Occurred()) PyErr_WriteUnraisable(o);
+    --Py_REFCNT(o);
+    PyErr_Restore(etype, eval, etb);
+  }
+  (*Py_TYPE(o)->tp_free)(o);
+}
+
+static PyMethodDef __pyx_methods_4cdec_5_cdec_Scorer[] = {
+  {0, 0, 0, 0}
+};
+
+static PyTypeObject __pyx_type_4cdec_5_cdec_Scorer = {
+  PyVarObject_HEAD_INIT(0, 0)
+  __Pyx_NAMESTR("cdec._cdec.Scorer"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec_Scorer), /*tp_basicsize*/
+  0, /*tp_itemsize*/
+  __pyx_tp_dealloc_4cdec_5_cdec_Scorer, /*tp_dealloc*/
+  0, /*tp_print*/
+  0, /*tp_getattr*/
+  0, /*tp_setattr*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*tp_compare*/
+  #else
+  0, /*reserved*/
+  #endif
+  0, /*tp_repr*/
+  0, /*tp_as_number*/
+  0, /*tp_as_sequence*/
+  0, /*tp_as_mapping*/
+  0, /*tp_hash*/
+  __pyx_pw_4cdec_5_cdec_6Scorer_5__call__, /*tp_call*/
+  __pyx_pw_4cdec_5_cdec_6Scorer_7__str__, /*tp_str*/
+  0, /*tp_getattro*/
+  0, /*tp_setattro*/
+  0, /*tp_as_buffer*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE, /*tp_flags*/
+  0, /*tp_doc*/
+  0, /*tp_traverse*/
+  0, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec___pyx_scope_struct_19_todot, /*tp_methods*/
+  __pyx_methods_4cdec_5_cdec_Scorer, /*tp_methods*/
   0, /*tp_members*/
   0, /*tp_getset*/
   0, /*tp_base*/
@@ -21924,7 +22337,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_19_todot = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec___pyx_scope_struct_19_todot, /*tp_new*/
+  __pyx_tp_new_4cdec_5_cdec_Scorer, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -21937,57 +22350,56 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_19_todot = {
   0, /*tp_version_tag*/
   #endif
 };
+static struct __pyx_vtabstruct_4cdec_5_cdec_HypergraphNode __pyx_vtable_4cdec_5_cdec_HypergraphNode;
 
-static PyObject *__pyx_tp_new_5_cdec_Candidate(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_4cdec_5_cdec_HypergraphNode(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_4cdec_5_cdec_HypergraphNode *p;
   PyObject *o;
   o = (*t->tp_alloc)(t, 0);
   if (unlikely(!o)) return 0;
+  p = ((struct __pyx_obj_4cdec_5_cdec_HypergraphNode *)o);
+  p->__pyx_vtab = __pyx_vtabptr_4cdec_5_cdec_HypergraphNode;
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec_Candidate(PyObject *o) {
+static void __pyx_tp_dealloc_4cdec_5_cdec_HypergraphNode(PyObject *o) {
   (*Py_TYPE(o)->tp_free)(o);
 }
 
-static PyObject *__pyx_getprop_5_cdec_9Candidate_words(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_5_cdec_9Candidate_5words_1__get__(o);
+static PyObject *__pyx_getprop_4cdec_5_cdec_14HypergraphNode_in_edges(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_4cdec_5_cdec_14HypergraphNode_8in_edges_1__get__(o);
 }
 
-static PyObject *__pyx_getprop_5_cdec_9Candidate_fmap(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_5_cdec_9Candidate_4fmap_1__get__(o);
+static PyObject *__pyx_getprop_4cdec_5_cdec_14HypergraphNode_out_edges(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_4cdec_5_cdec_14HypergraphNode_9out_edges_1__get__(o);
 }
 
-static PyObject *__pyx_getprop_5_cdec_9Candidate_score(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_5_cdec_9Candidate_5score_1__get__(o);
+static PyObject *__pyx_getprop_4cdec_5_cdec_14HypergraphNode_span(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_4cdec_5_cdec_14HypergraphNode_4span_1__get__(o);
 }
 
-static int __pyx_setprop_5_cdec_9Candidate_score(PyObject *o, PyObject *v, CYTHON_UNUSED void *x) {
-  if (v) {
-    return __pyx_pw_5_cdec_9Candidate_5score_3__set__(o, v);
-  }
-  else {
-    PyErr_SetString(PyExc_NotImplementedError, "__del__");
-    return -1;
-  }
+static PyObject *__pyx_getprop_4cdec_5_cdec_14HypergraphNode_cat(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_4cdec_5_cdec_14HypergraphNode_3cat_1__get__(o);
 }
 
-static PyMethodDef __pyx_methods_5_cdec_Candidate[] = {
+static PyMethodDef __pyx_methods_4cdec_5_cdec_HypergraphNode[] = {
   {0, 0, 0, 0}
 };
 
-static struct PyGetSetDef __pyx_getsets_5_cdec_Candidate[] = {
-  {(char *)"words", __pyx_getprop_5_cdec_9Candidate_words, 0, 0, 0},
-  {(char *)"fmap", __pyx_getprop_5_cdec_9Candidate_fmap, 0, 0, 0},
-  {(char *)"score", __pyx_getprop_5_cdec_9Candidate_score, __pyx_setprop_5_cdec_9Candidate_score, 0, 0},
+static struct PyGetSetDef __pyx_getsets_4cdec_5_cdec_HypergraphNode[] = {
+  {(char *)"in_edges", __pyx_getprop_4cdec_5_cdec_14HypergraphNode_in_edges, 0, 0, 0},
+  {(char *)"out_edges", __pyx_getprop_4cdec_5_cdec_14HypergraphNode_out_edges, 0, 0, 0},
+  {(char *)"span", __pyx_getprop_4cdec_5_cdec_14HypergraphNode_span, 0, 0, 0},
+  {(char *)"cat", __pyx_getprop_4cdec_5_cdec_14HypergraphNode_cat, 0, 0, 0},
   {0, 0, 0, 0, 0}
 };
 
-static PyTypeObject __pyx_type_5_cdec_Candidate = {
+static PyTypeObject __pyx_type_4cdec_5_cdec_HypergraphNode = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.Candidate"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec_Candidate), /*tp_basicsize*/
+  __Pyx_NAMESTR("cdec._cdec.HypergraphNode"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec_HypergraphNode), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec_Candidate, /*tp_dealloc*/
+  __pyx_tp_dealloc_4cdec_5_cdec_HypergraphNode, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -22010,13 +22422,13 @@ static PyTypeObject __pyx_type_5_cdec_Candidate = {
   0, /*tp_doc*/
   0, /*tp_traverse*/
   0, /*tp_clear*/
-  0, /*tp_richcompare*/
+  __pyx_pw_4cdec_5_cdec_14HypergraphNode_1__richcmp__, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec_Candidate, /*tp_methods*/
+  __pyx_methods_4cdec_5_cdec_HypergraphNode, /*tp_methods*/
   0, /*tp_members*/
-  __pyx_getsets_5_cdec_Candidate, /*tp_getset*/
+  __pyx_getsets_4cdec_5_cdec_HypergraphNode, /*tp_getset*/
   0, /*tp_base*/
   0, /*tp_dict*/
   0, /*tp_descr_get*/
@@ -22024,7 +22436,7 @@ static PyTypeObject __pyx_type_5_cdec_Candidate = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec_Candidate, /*tp_new*/
+  __pyx_tp_new_4cdec_5_cdec_HypergraphNode, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -22038,81 +22450,81 @@ static PyTypeObject __pyx_type_5_cdec_Candidate = {
   #endif
 };
 
-static struct __pyx_obj_5_cdec___pyx_scope_struct_6_genexpr *__pyx_freelist_5_cdec___pyx_scope_struct_6_genexpr[8];
-static int __pyx_freecount_5_cdec___pyx_scope_struct_6_genexpr = 0;
+static struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_10_kbest_features *__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_10_kbest_features[8];
+static int __pyx_freecount_4cdec_5_cdec___pyx_scope_struct_10_kbest_features = 0;
 
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_6_genexpr(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_6_genexpr *p;
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_10_kbest_features(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_10_kbest_features *p;
   PyObject *o;
-  if (likely((__pyx_freecount_5_cdec___pyx_scope_struct_6_genexpr > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_6_genexpr)))) {
-    o = (PyObject*)__pyx_freelist_5_cdec___pyx_scope_struct_6_genexpr[--__pyx_freecount_5_cdec___pyx_scope_struct_6_genexpr];
-    memset(o, 0, sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_6_genexpr));
+  if (likely((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_10_kbest_features > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_10_kbest_features)))) {
+    o = (PyObject*)__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_10_kbest_features[--__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_10_kbest_features];
+    memset(o, 0, sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_10_kbest_features));
     PyObject_INIT(o, t);
     PyObject_GC_Track(o);
   } else {
     o = (*t->tp_alloc)(t, 0);
     if (unlikely(!o)) return 0;
   }
-  p = ((struct __pyx_obj_5_cdec___pyx_scope_struct_6_genexpr *)o);
-  p->__pyx_outer_scope = 0;
-  p->__pyx_v_feat = 0;
-  p->__pyx_t_0 = 0;
+  p = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_10_kbest_features *)o);
+  p->__pyx_v_fmap = 0;
+  p->__pyx_v_self = 0;
+  p->__pyx_v_size = 0;
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec___pyx_scope_struct_6_genexpr(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_6_genexpr *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_6_genexpr *)o;
+static void __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_10_kbest_features(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_10_kbest_features *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_10_kbest_features *)o;
   PyObject_GC_UnTrack(o);
-  Py_CLEAR(p->__pyx_outer_scope);
-  Py_CLEAR(p->__pyx_v_feat);
-  Py_CLEAR(p->__pyx_t_0);
-  if ((__pyx_freecount_5_cdec___pyx_scope_struct_6_genexpr < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_6_genexpr))) {
-    __pyx_freelist_5_cdec___pyx_scope_struct_6_genexpr[__pyx_freecount_5_cdec___pyx_scope_struct_6_genexpr++] = ((struct __pyx_obj_5_cdec___pyx_scope_struct_6_genexpr *)o);
+  Py_CLEAR(p->__pyx_v_fmap);
+  Py_CLEAR(p->__pyx_v_self);
+  Py_CLEAR(p->__pyx_v_size);
+  if ((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_10_kbest_features < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_10_kbest_features))) {
+    __pyx_freelist_4cdec_5_cdec___pyx_scope_struct_10_kbest_features[__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_10_kbest_features++] = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_10_kbest_features *)o);
   } else {
     (*Py_TYPE(o)->tp_free)(o);
   }
 }
 
-static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_6_genexpr(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_10_kbest_features(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_5_cdec___pyx_scope_struct_6_genexpr *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_6_genexpr *)o;
-  if (p->__pyx_outer_scope) {
-    e = (*v)(((PyObject*)p->__pyx_outer_scope), a); if (e) return e;
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_10_kbest_features *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_10_kbest_features *)o;
+  if (p->__pyx_v_fmap) {
+    e = (*v)(((PyObject*)p->__pyx_v_fmap), a); if (e) return e;
   }
-  if (p->__pyx_v_feat) {
-    e = (*v)(p->__pyx_v_feat, a); if (e) return e;
+  if (p->__pyx_v_self) {
+    e = (*v)(((PyObject*)p->__pyx_v_self), a); if (e) return e;
   }
-  if (p->__pyx_t_0) {
-    e = (*v)(p->__pyx_t_0, a); if (e) return e;
+  if (p->__pyx_v_size) {
+    e = (*v)(p->__pyx_v_size, a); if (e) return e;
   }
   return 0;
 }
 
-static int __pyx_tp_clear_5_cdec___pyx_scope_struct_6_genexpr(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_6_genexpr *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_6_genexpr *)o;
+static int __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_10_kbest_features(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_10_kbest_features *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_10_kbest_features *)o;
   PyObject* tmp;
-  tmp = ((PyObject*)p->__pyx_outer_scope);
-  p->__pyx_outer_scope = ((struct __pyx_obj_5_cdec___pyx_scope_struct_5___str__ *)Py_None); Py_INCREF(Py_None);
+  tmp = ((PyObject*)p->__pyx_v_fmap);
+  p->__pyx_v_fmap = ((struct __pyx_obj_4cdec_5_cdec_SparseVector *)Py_None); Py_INCREF(Py_None);
   Py_XDECREF(tmp);
-  tmp = ((PyObject*)p->__pyx_v_feat);
-  p->__pyx_v_feat = Py_None; Py_INCREF(Py_None);
+  tmp = ((PyObject*)p->__pyx_v_self);
+  p->__pyx_v_self = ((struct __pyx_obj_4cdec_5_cdec_Hypergraph *)Py_None); Py_INCREF(Py_None);
   Py_XDECREF(tmp);
-  tmp = ((PyObject*)p->__pyx_t_0);
-  p->__pyx_t_0 = Py_None; Py_INCREF(Py_None);
+  tmp = ((PyObject*)p->__pyx_v_size);
+  p->__pyx_v_size = Py_None; Py_INCREF(Py_None);
   Py_XDECREF(tmp);
   return 0;
 }
 
-static PyMethodDef __pyx_methods_5_cdec___pyx_scope_struct_6_genexpr[] = {
+static PyMethodDef __pyx_methods_4cdec_5_cdec___pyx_scope_struct_10_kbest_features[] = {
   {0, 0, 0, 0}
 };
 
-static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_6_genexpr = {
+static PyTypeObject __pyx_type_4cdec_5_cdec___pyx_scope_struct_10_kbest_features = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.__pyx_scope_struct_6_genexpr"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_6_genexpr), /*tp_basicsize*/
+  __Pyx_NAMESTR("cdec._cdec.__pyx_scope_struct_10_kbest_features"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_10_kbest_features), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec___pyx_scope_struct_6_genexpr, /*tp_dealloc*/
+  __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_10_kbest_features, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -22133,13 +22545,13 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_6_genexpr = {
   0, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_5_cdec___pyx_scope_struct_6_genexpr, /*tp_traverse*/
-  __pyx_tp_clear_5_cdec___pyx_scope_struct_6_genexpr, /*tp_clear*/
+  __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_10_kbest_features, /*tp_traverse*/
+  __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_10_kbest_features, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec___pyx_scope_struct_6_genexpr, /*tp_methods*/
+  __pyx_methods_4cdec_5_cdec___pyx_scope_struct_10_kbest_features, /*tp_methods*/
   0, /*tp_members*/
   0, /*tp_getset*/
   0, /*tp_base*/
@@ -22149,7 +22561,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_6_genexpr = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec___pyx_scope_struct_6_genexpr, /*tp_new*/
+  __pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_10_kbest_features, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -22163,61 +22575,24 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_6_genexpr = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec_NT(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_5_cdec_NT *p;
+static PyObject *__pyx_tp_new_4cdec_5_cdec_NTRef(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
   PyObject *o;
   o = (*t->tp_alloc)(t, 0);
   if (unlikely(!o)) return 0;
-  p = ((struct __pyx_obj_5_cdec_NT *)o);
-  p->cat = ((PyObject*)Py_None); Py_INCREF(Py_None);
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec_NT(PyObject *o) {
-  struct __pyx_obj_5_cdec_NT *p = (struct __pyx_obj_5_cdec_NT *)o;
-  PyObject_GC_UnTrack(o);
-  Py_CLEAR(p->cat);
+static void __pyx_tp_dealloc_4cdec_5_cdec_NTRef(PyObject *o) {
   (*Py_TYPE(o)->tp_free)(o);
 }
 
-static int __pyx_tp_traverse_5_cdec_NT(PyObject *o, visitproc v, void *a) {
-  int e;
-  struct __pyx_obj_5_cdec_NT *p = (struct __pyx_obj_5_cdec_NT *)o;
-  if (p->cat) {
-    e = (*v)(p->cat, a); if (e) return e;
-  }
-  return 0;
-}
-
-static int __pyx_tp_clear_5_cdec_NT(PyObject *o) {
-  struct __pyx_obj_5_cdec_NT *p = (struct __pyx_obj_5_cdec_NT *)o;
-  PyObject* tmp;
-  tmp = ((PyObject*)p->cat);
-  p->cat = ((PyObject*)Py_None); Py_INCREF(Py_None);
-  Py_XDECREF(tmp);
-  return 0;
-}
-
-static PyObject *__pyx_getprop_5_cdec_2NT_cat(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_5_cdec_2NT_3cat_1__get__(o);
-}
-
-static int __pyx_setprop_5_cdec_2NT_cat(PyObject *o, PyObject *v, CYTHON_UNUSED void *x) {
-  if (v) {
-    return __pyx_pw_5_cdec_2NT_3cat_3__set__(o, v);
-  }
-  else {
-    return __pyx_pw_5_cdec_2NT_3cat_5__del__(o);
-  }
-}
-
-static PyObject *__pyx_getprop_5_cdec_2NT_ref(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_5_cdec_2NT_3ref_1__get__(o);
+static PyObject *__pyx_getprop_4cdec_5_cdec_5NTRef_ref(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_4cdec_5_cdec_5NTRef_3ref_1__get__(o);
 }
 
-static int __pyx_setprop_5_cdec_2NT_ref(PyObject *o, PyObject *v, CYTHON_UNUSED void *x) {
+static int __pyx_setprop_4cdec_5_cdec_5NTRef_ref(PyObject *o, PyObject *v, CYTHON_UNUSED void *x) {
   if (v) {
-    return __pyx_pw_5_cdec_2NT_3ref_3__set__(o, v);
+    return __pyx_pw_4cdec_5_cdec_5NTRef_3ref_3__set__(o, v);
   }
   else {
     PyErr_SetString(PyExc_NotImplementedError, "__del__");
@@ -22225,22 +22600,21 @@ static int __pyx_setprop_5_cdec_2NT_ref(PyObject *o, PyObject *v, CYTHON_UNUSED
   }
 }
 
-static PyMethodDef __pyx_methods_5_cdec_NT[] = {
+static PyMethodDef __pyx_methods_4cdec_5_cdec_NTRef[] = {
   {0, 0, 0, 0}
 };
 
-static struct PyGetSetDef __pyx_getsets_5_cdec_NT[] = {
-  {(char *)"cat", __pyx_getprop_5_cdec_2NT_cat, __pyx_setprop_5_cdec_2NT_cat, 0, 0},
-  {(char *)"ref", __pyx_getprop_5_cdec_2NT_ref, __pyx_setprop_5_cdec_2NT_ref, 0, 0},
+static struct PyGetSetDef __pyx_getsets_4cdec_5_cdec_NTRef[] = {
+  {(char *)"ref", __pyx_getprop_4cdec_5_cdec_5NTRef_ref, __pyx_setprop_4cdec_5_cdec_5NTRef_ref, 0, 0},
   {0, 0, 0, 0, 0}
 };
 
-static PyTypeObject __pyx_type_5_cdec_NT = {
+static PyTypeObject __pyx_type_4cdec_5_cdec_NTRef = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.NT"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec_NT), /*tp_basicsize*/
+  __Pyx_NAMESTR("cdec._cdec.NTRef"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec_NTRef), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec_NT, /*tp_dealloc*/
+  __pyx_tp_dealloc_4cdec_5_cdec_NTRef, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -22255,29 +22629,29 @@ static PyTypeObject __pyx_type_5_cdec_NT = {
   0, /*tp_as_mapping*/
   0, /*tp_hash*/
   0, /*tp_call*/
-  __pyx_pw_5_cdec_2NT_3__str__, /*tp_str*/
+  __pyx_pw_4cdec_5_cdec_5NTRef_3__str__, /*tp_str*/
   0, /*tp_getattro*/
   0, /*tp_setattro*/
   0, /*tp_as_buffer*/
-  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_5_cdec_NT, /*tp_traverse*/
-  __pyx_tp_clear_5_cdec_NT, /*tp_clear*/
+  0, /*tp_traverse*/
+  0, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec_NT, /*tp_methods*/
+  __pyx_methods_4cdec_5_cdec_NTRef, /*tp_methods*/
   0, /*tp_members*/
-  __pyx_getsets_5_cdec_NT, /*tp_getset*/
+  __pyx_getsets_4cdec_5_cdec_NTRef, /*tp_getset*/
   0, /*tp_base*/
   0, /*tp_dict*/
   0, /*tp_descr_get*/
   0, /*tp_descr_set*/
   0, /*tp_dictoffset*/
-  __pyx_pw_5_cdec_2NT_1__init__, /*tp_init*/
+  __pyx_pw_4cdec_5_cdec_5NTRef_1__init__, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec_NT, /*tp_new*/
+  __pyx_tp_new_4cdec_5_cdec_NTRef, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -22290,121 +22664,56 @@ static PyTypeObject __pyx_type_5_cdec_NT = {
   0, /*tp_version_tag*/
   #endif
 };
-static struct __pyx_vtabstruct_5_cdec_HypergraphEdge __pyx_vtable_5_cdec_HypergraphEdge;
 
-static PyObject *__pyx_tp_new_5_cdec_HypergraphEdge(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_5_cdec_HypergraphEdge *p;
+static PyObject *__pyx_tp_new_4cdec_5_cdec_Grammar(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
   PyObject *o;
   o = (*t->tp_alloc)(t, 0);
   if (unlikely(!o)) return 0;
-  p = ((struct __pyx_obj_5_cdec_HypergraphEdge *)o);
-  p->__pyx_vtab = __pyx_vtabptr_5_cdec_HypergraphEdge;
-  p->trule = ((struct __pyx_obj_5_cdec_TRule *)Py_None); Py_INCREF(Py_None);
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec_HypergraphEdge(PyObject *o) {
-  struct __pyx_obj_5_cdec_HypergraphEdge *p = (struct __pyx_obj_5_cdec_HypergraphEdge *)o;
-  PyObject_GC_UnTrack(o);
-  Py_CLEAR(p->trule);
-  (*Py_TYPE(o)->tp_free)(o);
-}
-
-static int __pyx_tp_traverse_5_cdec_HypergraphEdge(PyObject *o, visitproc v, void *a) {
-  int e;
-  struct __pyx_obj_5_cdec_HypergraphEdge *p = (struct __pyx_obj_5_cdec_HypergraphEdge *)o;
-  if (p->trule) {
-    e = (*v)(((PyObject*)p->trule), a); if (e) return e;
+static void __pyx_tp_dealloc_4cdec_5_cdec_Grammar(PyObject *o) {
+  {
+    PyObject *etype, *eval, *etb;
+    PyErr_Fetch(&etype, &eval, &etb);
+    ++Py_REFCNT(o);
+    __pyx_pw_4cdec_5_cdec_7Grammar_1__dealloc__(o);
+    if (PyErr_Occurred()) PyErr_WriteUnraisable(o);
+    --Py_REFCNT(o);
+    PyErr_Restore(etype, eval, etb);
   }
-  return 0;
-}
-
-static int __pyx_tp_clear_5_cdec_HypergraphEdge(PyObject *o) {
-  struct __pyx_obj_5_cdec_HypergraphEdge *p = (struct __pyx_obj_5_cdec_HypergraphEdge *)o;
-  PyObject* tmp;
-  tmp = ((PyObject*)p->trule);
-  p->trule = ((struct __pyx_obj_5_cdec_TRule *)Py_None); Py_INCREF(Py_None);
-  Py_XDECREF(tmp);
-  return 0;
-}
-
-static PyObject *__pyx_getprop_5_cdec_14HypergraphEdge_head_node(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_5_cdec_14HypergraphEdge_9head_node_1__get__(o);
-}
-
-static PyObject *__pyx_getprop_5_cdec_14HypergraphEdge_tail_nodes(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_5_cdec_14HypergraphEdge_10tail_nodes_1__get__(o);
-}
-
-static PyObject *__pyx_getprop_5_cdec_14HypergraphEdge_span(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_5_cdec_14HypergraphEdge_4span_1__get__(o);
-}
-
-static PyObject *__pyx_getprop_5_cdec_14HypergraphEdge_src_span(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_5_cdec_14HypergraphEdge_8src_span_1__get__(o);
-}
-
-static PyObject *__pyx_getprop_5_cdec_14HypergraphEdge_feature_values(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_5_cdec_14HypergraphEdge_14feature_values_1__get__(o);
-}
-
-static PyObject *__pyx_getprop_5_cdec_14HypergraphEdge_prob(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_5_cdec_14HypergraphEdge_4prob_1__get__(o);
+  (*Py_TYPE(o)->tp_free)(o);
 }
 
-static PyObject *__pyx_getprop_5_cdec_14HypergraphEdge_trule(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_5_cdec_14HypergraphEdge_5trule_1__get__(o);
+static PyObject *__pyx_getprop_4cdec_5_cdec_7Grammar_name(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_4cdec_5_cdec_7Grammar_4name_1__get__(o);
 }
 
-static int __pyx_setprop_5_cdec_14HypergraphEdge_trule(PyObject *o, PyObject *v, CYTHON_UNUSED void *x) {
+static int __pyx_setprop_4cdec_5_cdec_7Grammar_name(PyObject *o, PyObject *v, CYTHON_UNUSED void *x) {
   if (v) {
-    return __pyx_pw_5_cdec_14HypergraphEdge_5trule_3__set__(o, v);
+    return __pyx_pw_4cdec_5_cdec_7Grammar_4name_3__set__(o, v);
   }
   else {
-    return __pyx_pw_5_cdec_14HypergraphEdge_5trule_5__del__(o);
+    PyErr_SetString(PyExc_NotImplementedError, "__del__");
+    return -1;
   }
 }
 
-static PyMethodDef __pyx_methods_5_cdec_HypergraphEdge[] = {
+static PyMethodDef __pyx_methods_4cdec_5_cdec_Grammar[] = {
   {0, 0, 0, 0}
 };
 
-static struct PyGetSetDef __pyx_getsets_5_cdec_HypergraphEdge[] = {
-  {(char *)"head_node", __pyx_getprop_5_cdec_14HypergraphEdge_head_node, 0, 0, 0},
-  {(char *)"tail_nodes", __pyx_getprop_5_cdec_14HypergraphEdge_tail_nodes, 0, 0, 0},
-  {(char *)"span", __pyx_getprop_5_cdec_14HypergraphEdge_span, 0, 0, 0},
-  {(char *)"src_span", __pyx_getprop_5_cdec_14HypergraphEdge_src_span, 0, 0, 0},
-  {(char *)"feature_values", __pyx_getprop_5_cdec_14HypergraphEdge_feature_values, 0, 0, 0},
-  {(char *)"prob", __pyx_getprop_5_cdec_14HypergraphEdge_prob, 0, 0, 0},
-  {(char *)"trule", __pyx_getprop_5_cdec_14HypergraphEdge_trule, __pyx_setprop_5_cdec_14HypergraphEdge_trule, 0, 0},
+static struct PyGetSetDef __pyx_getsets_4cdec_5_cdec_Grammar[] = {
+  {(char *)"name", __pyx_getprop_4cdec_5_cdec_7Grammar_name, __pyx_setprop_4cdec_5_cdec_7Grammar_name, 0, 0},
   {0, 0, 0, 0, 0}
 };
 
-static PySequenceMethods __pyx_tp_as_sequence_HypergraphEdge = {
-  __pyx_pw_5_cdec_14HypergraphEdge_1__len__, /*sq_length*/
-  0, /*sq_concat*/
-  0, /*sq_repeat*/
-  0, /*sq_item*/
-  0, /*sq_slice*/
-  0, /*sq_ass_item*/
-  0, /*sq_ass_slice*/
-  0, /*sq_contains*/
-  0, /*sq_inplace_concat*/
-  0, /*sq_inplace_repeat*/
-};
-
-static PyMappingMethods __pyx_tp_as_mapping_HypergraphEdge = {
-  __pyx_pw_5_cdec_14HypergraphEdge_1__len__, /*mp_length*/
-  0, /*mp_subscript*/
-  0, /*mp_ass_subscript*/
-};
-
-static PyTypeObject __pyx_type_5_cdec_HypergraphEdge = {
+static PyTypeObject __pyx_type_4cdec_5_cdec_Grammar = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.HypergraphEdge"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec_HypergraphEdge), /*tp_basicsize*/
+  __Pyx_NAMESTR("cdec._cdec.Grammar"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec_Grammar), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec_HypergraphEdge, /*tp_dealloc*/
+  __pyx_tp_dealloc_4cdec_5_cdec_Grammar, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -22415,25 +22724,25 @@ static PyTypeObject __pyx_type_5_cdec_HypergraphEdge = {
   #endif
   0, /*tp_repr*/
   0, /*tp_as_number*/
-  &__pyx_tp_as_sequence_HypergraphEdge, /*tp_as_sequence*/
-  &__pyx_tp_as_mapping_HypergraphEdge, /*tp_as_mapping*/
+  0, /*tp_as_sequence*/
+  0, /*tp_as_mapping*/
   0, /*tp_hash*/
   0, /*tp_call*/
   0, /*tp_str*/
   0, /*tp_getattro*/
   0, /*tp_setattro*/
   0, /*tp_as_buffer*/
-  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_5_cdec_HypergraphEdge, /*tp_traverse*/
-  __pyx_tp_clear_5_cdec_HypergraphEdge, /*tp_clear*/
-  __pyx_pw_5_cdec_14HypergraphEdge_3__richcmp__, /*tp_richcompare*/
+  0, /*tp_traverse*/
+  0, /*tp_clear*/
+  0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
-  0, /*tp_iter*/
+  __pyx_pw_4cdec_5_cdec_7Grammar_3__iter__, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec_HypergraphEdge, /*tp_methods*/
+  __pyx_methods_4cdec_5_cdec_Grammar, /*tp_methods*/
   0, /*tp_members*/
-  __pyx_getsets_5_cdec_HypergraphEdge, /*tp_getset*/
+  __pyx_getsets_4cdec_5_cdec_Grammar, /*tp_getset*/
   0, /*tp_base*/
   0, /*tp_dict*/
   0, /*tp_descr_get*/
@@ -22441,7 +22750,7 @@ static PyTypeObject __pyx_type_5_cdec_HypergraphEdge = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec_HypergraphEdge, /*tp_new*/
+  __pyx_tp_new_4cdec_5_cdec_Grammar, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -22454,66 +22763,81 @@ static PyTypeObject __pyx_type_5_cdec_HypergraphEdge = {
   0, /*tp_version_tag*/
   #endif
 };
+static struct __pyx_vtabstruct_4cdec_5_cdec_Hypergraph __pyx_vtable_4cdec_5_cdec_Hypergraph;
 
-static struct __pyx_obj_5_cdec___pyx_scope_struct_1___iter__ *__pyx_freelist_5_cdec___pyx_scope_struct_1___iter__[8];
-static int __pyx_freecount_5_cdec___pyx_scope_struct_1___iter__ = 0;
-
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_1___iter__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_1___iter__ *p;
+static PyObject *__pyx_tp_new_4cdec_5_cdec_Hypergraph(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_4cdec_5_cdec_Hypergraph *p;
   PyObject *o;
-  if (likely((__pyx_freecount_5_cdec___pyx_scope_struct_1___iter__ > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_1___iter__)))) {
-    o = (PyObject*)__pyx_freelist_5_cdec___pyx_scope_struct_1___iter__[--__pyx_freecount_5_cdec___pyx_scope_struct_1___iter__];
-    memset(o, 0, sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_1___iter__));
-    PyObject_INIT(o, t);
-    PyObject_GC_Track(o);
-  } else {
-    o = (*t->tp_alloc)(t, 0);
-    if (unlikely(!o)) return 0;
-  }
-  p = ((struct __pyx_obj_5_cdec___pyx_scope_struct_1___iter__ *)o);
-  p->__pyx_v_self = 0;
+  o = (*t->tp_alloc)(t, 0);
+  if (unlikely(!o)) return 0;
+  p = ((struct __pyx_obj_4cdec_5_cdec_Hypergraph *)o);
+  p->__pyx_vtab = __pyx_vtabptr_4cdec_5_cdec_Hypergraph;
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec___pyx_scope_struct_1___iter__(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_1___iter__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_1___iter__ *)o;
-  PyObject_GC_UnTrack(o);
-  Py_CLEAR(p->__pyx_v_self);
-  if ((__pyx_freecount_5_cdec___pyx_scope_struct_1___iter__ < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_1___iter__))) {
-    __pyx_freelist_5_cdec___pyx_scope_struct_1___iter__[__pyx_freecount_5_cdec___pyx_scope_struct_1___iter__++] = ((struct __pyx_obj_5_cdec___pyx_scope_struct_1___iter__ *)o);
-  } else {
-    (*Py_TYPE(o)->tp_free)(o);
+static void __pyx_tp_dealloc_4cdec_5_cdec_Hypergraph(PyObject *o) {
+  {
+    PyObject *etype, *eval, *etb;
+    PyErr_Fetch(&etype, &eval, &etb);
+    ++Py_REFCNT(o);
+    __pyx_pw_4cdec_5_cdec_10Hypergraph_1__dealloc__(o);
+    if (PyErr_Occurred()) PyErr_WriteUnraisable(o);
+    --Py_REFCNT(o);
+    PyErr_Restore(etype, eval, etb);
   }
+  (*Py_TYPE(o)->tp_free)(o);
 }
 
-static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_1___iter__(PyObject *o, visitproc v, void *a) {
-  int e;
-  struct __pyx_obj_5_cdec___pyx_scope_struct_1___iter__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_1___iter__ *)o;
-  if (p->__pyx_v_self) {
-    e = (*v)(((PyObject*)p->__pyx_v_self), a); if (e) return e;
-  }
-  return 0;
+static PyObject *__pyx_getprop_4cdec_5_cdec_10Hypergraph_edges(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_4cdec_5_cdec_10Hypergraph_5edges_1__get__(o);
 }
 
-static int __pyx_tp_clear_5_cdec___pyx_scope_struct_1___iter__(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_1___iter__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_1___iter__ *)o;
-  PyObject* tmp;
-  tmp = ((PyObject*)p->__pyx_v_self);
-  p->__pyx_v_self = ((struct __pyx_obj_5_cdec_SparseVector *)Py_None); Py_INCREF(Py_None);
-  Py_XDECREF(tmp);
-  return 0;
+static PyObject *__pyx_getprop_4cdec_5_cdec_10Hypergraph_nodes(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_4cdec_5_cdec_10Hypergraph_5nodes_1__get__(o);
 }
 
-static PyMethodDef __pyx_methods_5_cdec___pyx_scope_struct_1___iter__[] = {
+static PyObject *__pyx_getprop_4cdec_5_cdec_10Hypergraph_goal(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_4cdec_5_cdec_10Hypergraph_4goal_1__get__(o);
+}
+
+static PyObject *__pyx_getprop_4cdec_5_cdec_10Hypergraph_npaths(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_4cdec_5_cdec_10Hypergraph_6npaths_1__get__(o);
+}
+
+static PyMethodDef __pyx_methods_4cdec_5_cdec_Hypergraph[] = {
+  {__Pyx_NAMESTR("viterbi"), (PyCFunction)__pyx_pw_4cdec_5_cdec_10Hypergraph_3viterbi, METH_NOARGS, __Pyx_DOCSTR(__pyx_doc_4cdec_5_cdec_10Hypergraph_2viterbi)},
+  {__Pyx_NAMESTR("viterbi_trees"), (PyCFunction)__pyx_pw_4cdec_5_cdec_10Hypergraph_5viterbi_trees, METH_NOARGS, __Pyx_DOCSTR(__pyx_doc_4cdec_5_cdec_10Hypergraph_4viterbi_trees)},
+  {__Pyx_NAMESTR("viterbi_features"), (PyCFunction)__pyx_pw_4cdec_5_cdec_10Hypergraph_7viterbi_features, METH_NOARGS, __Pyx_DOCSTR(__pyx_doc_4cdec_5_cdec_10Hypergraph_6viterbi_features)},
+  {__Pyx_NAMESTR("viterbi_forest"), (PyCFunction)__pyx_pw_4cdec_5_cdec_10Hypergraph_9viterbi_forest, METH_NOARGS, __Pyx_DOCSTR(0)},
+  {__Pyx_NAMESTR("viterbi_joshua"), (PyCFunction)__pyx_pw_4cdec_5_cdec_10Hypergraph_11viterbi_joshua, METH_NOARGS, __Pyx_DOCSTR(__pyx_doc_4cdec_5_cdec_10Hypergraph_10viterbi_joshua)},
+  {__Pyx_NAMESTR("kbest"), (PyCFunction)__pyx_pw_4cdec_5_cdec_10Hypergraph_13kbest, METH_O, __Pyx_DOCSTR(__pyx_doc_4cdec_5_cdec_10Hypergraph_12kbest)},
+  {__Pyx_NAMESTR("kbest_trees"), (PyCFunction)__pyx_pw_4cdec_5_cdec_10Hypergraph_16kbest_trees, METH_O, __Pyx_DOCSTR(__pyx_doc_4cdec_5_cdec_10Hypergraph_15kbest_trees)},
+  {__Pyx_NAMESTR("kbest_features"), (PyCFunction)__pyx_pw_4cdec_5_cdec_10Hypergraph_19kbest_features, METH_O, __Pyx_DOCSTR(__pyx_doc_4cdec_5_cdec_10Hypergraph_18kbest_features)},
+  {__Pyx_NAMESTR("sample"), (PyCFunction)__pyx_pw_4cdec_5_cdec_10Hypergraph_22sample, METH_O, __Pyx_DOCSTR(__pyx_doc_4cdec_5_cdec_10Hypergraph_21sample)},
+  {__Pyx_NAMESTR("sample_trees"), (PyCFunction)__pyx_pw_4cdec_5_cdec_10Hypergraph_25sample_trees, METH_O, __Pyx_DOCSTR(__pyx_doc_4cdec_5_cdec_10Hypergraph_24sample_trees)},
+  {__Pyx_NAMESTR("intersect"), (PyCFunction)__pyx_pw_4cdec_5_cdec_10Hypergraph_28intersect, METH_O, __Pyx_DOCSTR(__pyx_doc_4cdec_5_cdec_10Hypergraph_27intersect)},
+  {__Pyx_NAMESTR("prune"), (PyCFunction)__pyx_pw_4cdec_5_cdec_10Hypergraph_30prune, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(__pyx_doc_4cdec_5_cdec_10Hypergraph_29prune)},
+  {__Pyx_NAMESTR("lattice"), (PyCFunction)__pyx_pw_4cdec_5_cdec_10Hypergraph_32lattice, METH_NOARGS, __Pyx_DOCSTR(__pyx_doc_4cdec_5_cdec_10Hypergraph_31lattice)},
+  {__Pyx_NAMESTR("plf"), (PyCFunction)__pyx_pw_4cdec_5_cdec_10Hypergraph_34plf, METH_NOARGS, __Pyx_DOCSTR(__pyx_doc_4cdec_5_cdec_10Hypergraph_33plf)},
+  {__Pyx_NAMESTR("reweight"), (PyCFunction)__pyx_pw_4cdec_5_cdec_10Hypergraph_36reweight, METH_O, __Pyx_DOCSTR(__pyx_doc_4cdec_5_cdec_10Hypergraph_35reweight)},
+  {__Pyx_NAMESTR("inside_outside"), (PyCFunction)__pyx_pw_4cdec_5_cdec_10Hypergraph_38inside_outside, METH_NOARGS, __Pyx_DOCSTR(__pyx_doc_4cdec_5_cdec_10Hypergraph_37inside_outside)},
   {0, 0, 0, 0}
 };
 
-static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_1___iter__ = {
+static struct PyGetSetDef __pyx_getsets_4cdec_5_cdec_Hypergraph[] = {
+  {(char *)"edges", __pyx_getprop_4cdec_5_cdec_10Hypergraph_edges, 0, 0, 0},
+  {(char *)"nodes", __pyx_getprop_4cdec_5_cdec_10Hypergraph_nodes, 0, 0, 0},
+  {(char *)"goal", __pyx_getprop_4cdec_5_cdec_10Hypergraph_goal, 0, 0, 0},
+  {(char *)"npaths", __pyx_getprop_4cdec_5_cdec_10Hypergraph_npaths, 0, 0, 0},
+  {0, 0, 0, 0, 0}
+};
+
+static PyTypeObject __pyx_type_4cdec_5_cdec_Hypergraph = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.__pyx_scope_struct_1___iter__"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_1___iter__), /*tp_basicsize*/
+  __Pyx_NAMESTR("cdec._cdec.Hypergraph"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec_Hypergraph), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec___pyx_scope_struct_1___iter__, /*tp_dealloc*/
+  __pyx_tp_dealloc_4cdec_5_cdec_Hypergraph, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -22532,17 +22856,17 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_1___iter__ = {
   0, /*tp_getattro*/
   0, /*tp_setattro*/
   0, /*tp_as_buffer*/
-  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_5_cdec___pyx_scope_struct_1___iter__, /*tp_traverse*/
-  __pyx_tp_clear_5_cdec___pyx_scope_struct_1___iter__, /*tp_clear*/
+  0, /*tp_traverse*/
+  0, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec___pyx_scope_struct_1___iter__, /*tp_methods*/
+  __pyx_methods_4cdec_5_cdec_Hypergraph, /*tp_methods*/
   0, /*tp_members*/
-  0, /*tp_getset*/
+  __pyx_getsets_4cdec_5_cdec_Hypergraph, /*tp_getset*/
   0, /*tp_base*/
   0, /*tp_dict*/
   0, /*tp_descr_get*/
@@ -22550,7 +22874,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_1___iter__ = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec___pyx_scope_struct_1___iter__, /*tp_new*/
+  __pyx_tp_new_4cdec_5_cdec_Hypergraph, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -22564,65 +22888,65 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_1___iter__ = {
   #endif
 };
 
-static struct __pyx_obj_5_cdec___pyx_scope_struct_16___get__ *__pyx_freelist_5_cdec___pyx_scope_struct_16___get__[8];
-static int __pyx_freecount_5_cdec___pyx_scope_struct_16___get__ = 0;
+static struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_24___init__ *__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_24___init__[8];
+static int __pyx_freecount_4cdec_5_cdec___pyx_scope_struct_24___init__ = 0;
 
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_16___get__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_16___get__ *p;
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_24___init__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_24___init__ *p;
   PyObject *o;
-  if (likely((__pyx_freecount_5_cdec___pyx_scope_struct_16___get__ > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_16___get__)))) {
-    o = (PyObject*)__pyx_freelist_5_cdec___pyx_scope_struct_16___get__[--__pyx_freecount_5_cdec___pyx_scope_struct_16___get__];
-    memset(o, 0, sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_16___get__));
+  if (likely((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_24___init__ > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_24___init__)))) {
+    o = (PyObject*)__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_24___init__[--__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_24___init__];
+    memset(o, 0, sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_24___init__));
     PyObject_INIT(o, t);
     PyObject_GC_Track(o);
   } else {
     o = (*t->tp_alloc)(t, 0);
     if (unlikely(!o)) return 0;
   }
-  p = ((struct __pyx_obj_5_cdec___pyx_scope_struct_16___get__ *)o);
-  p->__pyx_v_self = 0;
+  p = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_24___init__ *)o);
+  p->__pyx_v_config = 0;
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec___pyx_scope_struct_16___get__(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_16___get__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_16___get__ *)o;
+static void __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_24___init__(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_24___init__ *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_24___init__ *)o;
   PyObject_GC_UnTrack(o);
-  Py_CLEAR(p->__pyx_v_self);
-  if ((__pyx_freecount_5_cdec___pyx_scope_struct_16___get__ < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_16___get__))) {
-    __pyx_freelist_5_cdec___pyx_scope_struct_16___get__[__pyx_freecount_5_cdec___pyx_scope_struct_16___get__++] = ((struct __pyx_obj_5_cdec___pyx_scope_struct_16___get__ *)o);
+  Py_CLEAR(p->__pyx_v_config);
+  if ((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_24___init__ < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_24___init__))) {
+    __pyx_freelist_4cdec_5_cdec___pyx_scope_struct_24___init__[__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_24___init__++] = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_24___init__ *)o);
   } else {
     (*Py_TYPE(o)->tp_free)(o);
   }
 }
 
-static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_16___get__(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_24___init__(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_5_cdec___pyx_scope_struct_16___get__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_16___get__ *)o;
-  if (p->__pyx_v_self) {
-    e = (*v)(((PyObject*)p->__pyx_v_self), a); if (e) return e;
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_24___init__ *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_24___init__ *)o;
+  if (p->__pyx_v_config) {
+    e = (*v)(p->__pyx_v_config, a); if (e) return e;
   }
   return 0;
 }
 
-static int __pyx_tp_clear_5_cdec___pyx_scope_struct_16___get__(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_16___get__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_16___get__ *)o;
+static int __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_24___init__(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_24___init__ *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_24___init__ *)o;
   PyObject* tmp;
-  tmp = ((PyObject*)p->__pyx_v_self);
-  p->__pyx_v_self = ((struct __pyx_obj_5_cdec_HypergraphNode *)Py_None); Py_INCREF(Py_None);
+  tmp = ((PyObject*)p->__pyx_v_config);
+  p->__pyx_v_config = ((PyObject*)Py_None); Py_INCREF(Py_None);
   Py_XDECREF(tmp);
   return 0;
 }
 
-static PyMethodDef __pyx_methods_5_cdec___pyx_scope_struct_16___get__[] = {
+static PyMethodDef __pyx_methods_4cdec_5_cdec___pyx_scope_struct_24___init__[] = {
   {0, 0, 0, 0}
 };
 
-static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_16___get__ = {
+static PyTypeObject __pyx_type_4cdec_5_cdec___pyx_scope_struct_24___init__ = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.__pyx_scope_struct_16___get__"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_16___get__), /*tp_basicsize*/
+  __Pyx_NAMESTR("cdec._cdec.__pyx_scope_struct_24___init__"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_24___init__), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec___pyx_scope_struct_16___get__, /*tp_dealloc*/
+  __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_24___init__, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -22643,13 +22967,13 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_16___get__ = {
   0, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_5_cdec___pyx_scope_struct_16___get__, /*tp_traverse*/
-  __pyx_tp_clear_5_cdec___pyx_scope_struct_16___get__, /*tp_clear*/
+  __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_24___init__, /*tp_traverse*/
+  __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_24___init__, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec___pyx_scope_struct_16___get__, /*tp_methods*/
+  __pyx_methods_4cdec_5_cdec___pyx_scope_struct_24___init__, /*tp_methods*/
   0, /*tp_members*/
   0, /*tp_getset*/
   0, /*tp_base*/
@@ -22659,7 +22983,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_16___get__ = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec___pyx_scope_struct_16___get__, /*tp_new*/
+  __pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_24___init__, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -22673,65 +22997,66 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_16___get__ = {
   #endif
 };
 
-static struct __pyx_obj_5_cdec___pyx_scope_struct_4___get__ *__pyx_freelist_5_cdec___pyx_scope_struct_4___get__[8];
-static int __pyx_freecount_5_cdec___pyx_scope_struct_4___get__ = 0;
-
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_4___get__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_4___get__ *p;
+static PyObject *__pyx_tp_new_4cdec_5_cdec_CandidateSet(PyTypeObject *t, PyObject *a, PyObject *k) {
   PyObject *o;
-  if (likely((__pyx_freecount_5_cdec___pyx_scope_struct_4___get__ > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_4___get__)))) {
-    o = (PyObject*)__pyx_freelist_5_cdec___pyx_scope_struct_4___get__[--__pyx_freecount_5_cdec___pyx_scope_struct_4___get__];
-    memset(o, 0, sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_4___get__));
-    PyObject_INIT(o, t);
-    PyObject_GC_Track(o);
-  } else {
-    o = (*t->tp_alloc)(t, 0);
-    if (unlikely(!o)) return 0;
+  o = (*t->tp_alloc)(t, 0);
+  if (unlikely(!o)) return 0;
+  if (unlikely(__pyx_pw_4cdec_5_cdec_12CandidateSet_1__cinit__(o, a, k) < 0)) {
+    Py_DECREF(o); o = 0;
   }
-  p = ((struct __pyx_obj_5_cdec___pyx_scope_struct_4___get__ *)o);
-  p->__pyx_v_self = 0;
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec___pyx_scope_struct_4___get__(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_4___get__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_4___get__ *)o;
-  PyObject_GC_UnTrack(o);
-  Py_CLEAR(p->__pyx_v_self);
-  if ((__pyx_freecount_5_cdec___pyx_scope_struct_4___get__ < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_4___get__))) {
-    __pyx_freelist_5_cdec___pyx_scope_struct_4___get__[__pyx_freecount_5_cdec___pyx_scope_struct_4___get__++] = ((struct __pyx_obj_5_cdec___pyx_scope_struct_4___get__ *)o);
-  } else {
-    (*Py_TYPE(o)->tp_free)(o);
-  }
-}
-
-static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_4___get__(PyObject *o, visitproc v, void *a) {
-  int e;
-  struct __pyx_obj_5_cdec___pyx_scope_struct_4___get__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_4___get__ *)o;
-  if (p->__pyx_v_self) {
-    e = (*v)(((PyObject*)p->__pyx_v_self), a); if (e) return e;
+static void __pyx_tp_dealloc_4cdec_5_cdec_CandidateSet(PyObject *o) {
+  {
+    PyObject *etype, *eval, *etb;
+    PyErr_Fetch(&etype, &eval, &etb);
+    ++Py_REFCNT(o);
+    __pyx_pw_4cdec_5_cdec_12CandidateSet_3__dealloc__(o);
+    if (PyErr_Occurred()) PyErr_WriteUnraisable(o);
+    --Py_REFCNT(o);
+    PyErr_Restore(etype, eval, etb);
   }
-  return 0;
+  (*Py_TYPE(o)->tp_free)(o);
 }
-
-static int __pyx_tp_clear_5_cdec___pyx_scope_struct_4___get__(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_4___get__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_4___get__ *)o;
-  PyObject* tmp;
-  tmp = ((PyObject*)p->__pyx_v_self);
-  p->__pyx_v_self = ((struct __pyx_obj_5_cdec_TRule *)Py_None); Py_INCREF(Py_None);
-  Py_XDECREF(tmp);
-  return 0;
+static PyObject *__pyx_sq_item_4cdec_5_cdec_CandidateSet(PyObject *o, Py_ssize_t i) {
+  PyObject *r;
+  PyObject *x = PyInt_FromSsize_t(i); if(!x) return 0;
+  r = Py_TYPE(o)->tp_as_mapping->mp_subscript(o, x);
+  Py_DECREF(x);
+  return r;
 }
 
-static PyMethodDef __pyx_methods_5_cdec___pyx_scope_struct_4___get__[] = {
+static PyMethodDef __pyx_methods_4cdec_5_cdec_CandidateSet[] = {
+  {__Pyx_NAMESTR("add_kbest"), (PyCFunction)__pyx_pw_4cdec_5_cdec_12CandidateSet_12add_kbest, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(__pyx_doc_4cdec_5_cdec_12CandidateSet_11add_kbest)},
   {0, 0, 0, 0}
 };
 
-static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_4___get__ = {
+static PySequenceMethods __pyx_tp_as_sequence_CandidateSet = {
+  __pyx_pw_4cdec_5_cdec_12CandidateSet_5__len__, /*sq_length*/
+  0, /*sq_concat*/
+  0, /*sq_repeat*/
+  __pyx_sq_item_4cdec_5_cdec_CandidateSet, /*sq_item*/
+  0, /*sq_slice*/
+  0, /*sq_ass_item*/
+  0, /*sq_ass_slice*/
+  0, /*sq_contains*/
+  0, /*sq_inplace_concat*/
+  0, /*sq_inplace_repeat*/
+};
+
+static PyMappingMethods __pyx_tp_as_mapping_CandidateSet = {
+  __pyx_pw_4cdec_5_cdec_12CandidateSet_5__len__, /*mp_length*/
+  __pyx_pw_4cdec_5_cdec_12CandidateSet_7__getitem__, /*mp_subscript*/
+  0, /*mp_ass_subscript*/
+};
+
+static PyTypeObject __pyx_type_4cdec_5_cdec_CandidateSet = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.__pyx_scope_struct_4___get__"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_4___get__), /*tp_basicsize*/
+  __Pyx_NAMESTR("cdec._cdec.CandidateSet"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec_CandidateSet), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec___pyx_scope_struct_4___get__, /*tp_dealloc*/
+  __pyx_tp_dealloc_4cdec_5_cdec_CandidateSet, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -22742,23 +23067,23 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_4___get__ = {
   #endif
   0, /*tp_repr*/
   0, /*tp_as_number*/
-  0, /*tp_as_sequence*/
-  0, /*tp_as_mapping*/
+  &__pyx_tp_as_sequence_CandidateSet, /*tp_as_sequence*/
+  &__pyx_tp_as_mapping_CandidateSet, /*tp_as_mapping*/
   0, /*tp_hash*/
   0, /*tp_call*/
   0, /*tp_str*/
   0, /*tp_getattro*/
   0, /*tp_setattro*/
   0, /*tp_as_buffer*/
-  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_5_cdec___pyx_scope_struct_4___get__, /*tp_traverse*/
-  __pyx_tp_clear_5_cdec___pyx_scope_struct_4___get__, /*tp_clear*/
+  0, /*tp_traverse*/
+  0, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
-  0, /*tp_iter*/
+  __pyx_pw_4cdec_5_cdec_12CandidateSet_9__iter__, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec___pyx_scope_struct_4___get__, /*tp_methods*/
+  __pyx_methods_4cdec_5_cdec_CandidateSet, /*tp_methods*/
   0, /*tp_members*/
   0, /*tp_getset*/
   0, /*tp_base*/
@@ -22768,7 +23093,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_4___get__ = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec___pyx_scope_struct_4___get__, /*tp_new*/
+  __pyx_tp_new_4cdec_5_cdec_CandidateSet, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -22782,65 +23107,89 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_4___get__ = {
   #endif
 };
 
-static struct __pyx_obj_5_cdec___pyx_scope_struct_18___iter__ *__pyx_freelist_5_cdec___pyx_scope_struct_18___iter__[8];
-static int __pyx_freecount_5_cdec___pyx_scope_struct_18___iter__ = 0;
+static struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees *__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees[8];
+static int __pyx_freecount_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees = 0;
 
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_18___iter__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_18___iter__ *p;
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees *p;
   PyObject *o;
-  if (likely((__pyx_freecount_5_cdec___pyx_scope_struct_18___iter__ > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_18___iter__)))) {
-    o = (PyObject*)__pyx_freelist_5_cdec___pyx_scope_struct_18___iter__[--__pyx_freecount_5_cdec___pyx_scope_struct_18___iter__];
-    memset(o, 0, sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_18___iter__));
+  if (likely((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees)))) {
+    o = (PyObject*)__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees[--__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees];
+    memset(o, 0, sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees));
     PyObject_INIT(o, t);
     PyObject_GC_Track(o);
   } else {
     o = (*t->tp_alloc)(t, 0);
     if (unlikely(!o)) return 0;
   }
-  p = ((struct __pyx_obj_5_cdec___pyx_scope_struct_18___iter__ *)o);
+  p = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees *)o);
+  p->__pyx_v_e_tree = 0;
+  p->__pyx_v_f_tree = 0;
   p->__pyx_v_self = 0;
+  p->__pyx_v_size = 0;
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec___pyx_scope_struct_18___iter__(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_18___iter__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_18___iter__ *)o;
+static void __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees *)o;
   PyObject_GC_UnTrack(o);
+  Py_CLEAR(p->__pyx_v_e_tree);
+  Py_CLEAR(p->__pyx_v_f_tree);
   Py_CLEAR(p->__pyx_v_self);
-  if ((__pyx_freecount_5_cdec___pyx_scope_struct_18___iter__ < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_18___iter__))) {
-    __pyx_freelist_5_cdec___pyx_scope_struct_18___iter__[__pyx_freecount_5_cdec___pyx_scope_struct_18___iter__++] = ((struct __pyx_obj_5_cdec___pyx_scope_struct_18___iter__ *)o);
+  Py_CLEAR(p->__pyx_v_size);
+  if ((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees))) {
+    __pyx_freelist_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees[__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees++] = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees *)o);
   } else {
     (*Py_TYPE(o)->tp_free)(o);
   }
 }
 
-static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_18___iter__(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_5_cdec___pyx_scope_struct_18___iter__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_18___iter__ *)o;
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees *)o;
+  if (p->__pyx_v_e_tree) {
+    e = (*v)(p->__pyx_v_e_tree, a); if (e) return e;
+  }
+  if (p->__pyx_v_f_tree) {
+    e = (*v)(p->__pyx_v_f_tree, a); if (e) return e;
+  }
   if (p->__pyx_v_self) {
     e = (*v)(((PyObject*)p->__pyx_v_self), a); if (e) return e;
   }
+  if (p->__pyx_v_size) {
+    e = (*v)(p->__pyx_v_size, a); if (e) return e;
+  }
   return 0;
 }
 
-static int __pyx_tp_clear_5_cdec___pyx_scope_struct_18___iter__(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_18___iter__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_18___iter__ *)o;
+static int __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees *)o;
   PyObject* tmp;
+  tmp = ((PyObject*)p->__pyx_v_e_tree);
+  p->__pyx_v_e_tree = ((PyObject*)Py_None); Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->__pyx_v_f_tree);
+  p->__pyx_v_f_tree = ((PyObject*)Py_None); Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
   tmp = ((PyObject*)p->__pyx_v_self);
-  p->__pyx_v_self = ((struct __pyx_obj_5_cdec_Lattice *)Py_None); Py_INCREF(Py_None);
+  p->__pyx_v_self = ((struct __pyx_obj_4cdec_5_cdec_Hypergraph *)Py_None); Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->__pyx_v_size);
+  p->__pyx_v_size = Py_None; Py_INCREF(Py_None);
   Py_XDECREF(tmp);
   return 0;
 }
 
-static PyMethodDef __pyx_methods_5_cdec___pyx_scope_struct_18___iter__[] = {
+static PyMethodDef __pyx_methods_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees[] = {
   {0, 0, 0, 0}
 };
 
-static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_18___iter__ = {
+static PyTypeObject __pyx_type_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.__pyx_scope_struct_18___iter__"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_18___iter__), /*tp_basicsize*/
+  __Pyx_NAMESTR("cdec._cdec.__pyx_scope_struct_9_kbest_trees"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec___pyx_scope_struct_18___iter__, /*tp_dealloc*/
+  __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -22861,13 +23210,13 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_18___iter__ = {
   0, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_5_cdec___pyx_scope_struct_18___iter__, /*tp_traverse*/
-  __pyx_tp_clear_5_cdec___pyx_scope_struct_18___iter__, /*tp_clear*/
+  __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees, /*tp_traverse*/
+  __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec___pyx_scope_struct_18___iter__, /*tp_methods*/
+  __pyx_methods_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees, /*tp_methods*/
   0, /*tp_members*/
   0, /*tp_getset*/
   0, /*tp_base*/
@@ -22877,7 +23226,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_18___iter__ = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec___pyx_scope_struct_18___iter__, /*tp_new*/
+  __pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -22891,86 +23240,65 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_18___iter__ = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec_Decoder(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_5_cdec_Decoder *p;
+static struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_19_todot *__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_19_todot[8];
+static int __pyx_freecount_4cdec_5_cdec___pyx_scope_struct_19_todot = 0;
+
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_19_todot(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_19_todot *p;
   PyObject *o;
-  o = (*t->tp_alloc)(t, 0);
-  if (unlikely(!o)) return 0;
-  p = ((struct __pyx_obj_5_cdec_Decoder *)o);
-  p->weights = ((struct __pyx_obj_5_cdec_DenseVector *)Py_None); Py_INCREF(Py_None);
+  if (likely((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_19_todot > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_19_todot)))) {
+    o = (PyObject*)__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_19_todot[--__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_19_todot];
+    memset(o, 0, sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_19_todot));
+    PyObject_INIT(o, t);
+    PyObject_GC_Track(o);
+  } else {
+    o = (*t->tp_alloc)(t, 0);
+    if (unlikely(!o)) return 0;
+  }
+  p = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_19_todot *)o);
+  p->__pyx_v_self = 0;
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec_Decoder(PyObject *o) {
-  struct __pyx_obj_5_cdec_Decoder *p = (struct __pyx_obj_5_cdec_Decoder *)o;
+static void __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_19_todot(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_19_todot *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_19_todot *)o;
   PyObject_GC_UnTrack(o);
-  {
-    PyObject *etype, *eval, *etb;
-    PyErr_Fetch(&etype, &eval, &etb);
-    ++Py_REFCNT(o);
-    __pyx_pw_5_cdec_7Decoder_3__dealloc__(o);
-    if (PyErr_Occurred()) PyErr_WriteUnraisable(o);
-    --Py_REFCNT(o);
-    PyErr_Restore(etype, eval, etb);
+  Py_CLEAR(p->__pyx_v_self);
+  if ((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_19_todot < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_19_todot))) {
+    __pyx_freelist_4cdec_5_cdec___pyx_scope_struct_19_todot[__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_19_todot++] = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_19_todot *)o);
+  } else {
+    (*Py_TYPE(o)->tp_free)(o);
   }
-  Py_CLEAR(p->weights);
-  (*Py_TYPE(o)->tp_free)(o);
 }
 
-static int __pyx_tp_traverse_5_cdec_Decoder(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_19_todot(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_5_cdec_Decoder *p = (struct __pyx_obj_5_cdec_Decoder *)o;
-  if (p->weights) {
-    e = (*v)(((PyObject*)p->weights), a); if (e) return e;
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_19_todot *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_19_todot *)o;
+  if (p->__pyx_v_self) {
+    e = (*v)(((PyObject*)p->__pyx_v_self), a); if (e) return e;
   }
   return 0;
 }
 
-static int __pyx_tp_clear_5_cdec_Decoder(PyObject *o) {
-  struct __pyx_obj_5_cdec_Decoder *p = (struct __pyx_obj_5_cdec_Decoder *)o;
+static int __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_19_todot(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_19_todot *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_19_todot *)o;
   PyObject* tmp;
-  tmp = ((PyObject*)p->weights);
-  p->weights = ((struct __pyx_obj_5_cdec_DenseVector *)Py_None); Py_INCREF(Py_None);
+  tmp = ((PyObject*)p->__pyx_v_self);
+  p->__pyx_v_self = ((struct __pyx_obj_4cdec_5_cdec_Lattice *)Py_None); Py_INCREF(Py_None);
   Py_XDECREF(tmp);
   return 0;
 }
 
-static PyObject *__pyx_getprop_5_cdec_7Decoder_weights(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_5_cdec_7Decoder_7weights_1__get__(o);
-}
-
-static int __pyx_setprop_5_cdec_7Decoder_weights(PyObject *o, PyObject *v, CYTHON_UNUSED void *x) {
-  if (v) {
-    return __pyx_pw_5_cdec_7Decoder_7weights_3__set__(o, v);
-  }
-  else {
-    PyErr_SetString(PyExc_NotImplementedError, "__del__");
-    return -1;
-  }
-}
-
-static PyObject *__pyx_getprop_5_cdec_7Decoder_formalism(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_5_cdec_7Decoder_9formalism_1__get__(o);
-}
-
-static PyMethodDef __pyx_methods_5_cdec_Decoder[] = {
-  {__Pyx_NAMESTR("read_weights"), (PyCFunction)__pyx_pw_5_cdec_7Decoder_5read_weights, METH_O, __Pyx_DOCSTR(__pyx_doc_5_cdec_7Decoder_4read_weights)},
-  {__Pyx_NAMESTR("translate"), (PyCFunction)__pyx_pw_5_cdec_7Decoder_7translate, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(__pyx_doc_5_cdec_7Decoder_6translate)},
+static PyMethodDef __pyx_methods_4cdec_5_cdec___pyx_scope_struct_19_todot[] = {
   {0, 0, 0, 0}
 };
 
-static struct PyGetSetDef __pyx_getsets_5_cdec_Decoder[] = {
-  {(char *)"weights", __pyx_getprop_5_cdec_7Decoder_weights, __pyx_setprop_5_cdec_7Decoder_weights, 0, 0},
-  {(char *)"formalism", __pyx_getprop_5_cdec_7Decoder_formalism, 0, 0, 0},
-  {0, 0, 0, 0, 0}
-};
-
-static PyTypeObject __pyx_type_5_cdec_Decoder = {
+static PyTypeObject __pyx_type_4cdec_5_cdec___pyx_scope_struct_19_todot = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.Decoder"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec_Decoder), /*tp_basicsize*/
+  __Pyx_NAMESTR("cdec._cdec.__pyx_scope_struct_19_todot"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_19_todot), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec_Decoder, /*tp_dealloc*/
+  __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_19_todot, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -22989,25 +23317,25 @@ static PyTypeObject __pyx_type_5_cdec_Decoder = {
   0, /*tp_getattro*/
   0, /*tp_setattro*/
   0, /*tp_as_buffer*/
-  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_5_cdec_Decoder, /*tp_traverse*/
-  __pyx_tp_clear_5_cdec_Decoder, /*tp_clear*/
+  __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_19_todot, /*tp_traverse*/
+  __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_19_todot, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec_Decoder, /*tp_methods*/
+  __pyx_methods_4cdec_5_cdec___pyx_scope_struct_19_todot, /*tp_methods*/
   0, /*tp_members*/
-  __pyx_getsets_5_cdec_Decoder, /*tp_getset*/
+  0, /*tp_getset*/
   0, /*tp_base*/
   0, /*tp_dict*/
   0, /*tp_descr_get*/
   0, /*tp_descr_set*/
   0, /*tp_dictoffset*/
-  __pyx_pw_5_cdec_7Decoder_1__init__, /*tp_init*/
+  0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec_Decoder, /*tp_new*/
+  __pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_19_todot, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -23020,56 +23348,66 @@ static PyTypeObject __pyx_type_5_cdec_Decoder = {
   0, /*tp_version_tag*/
   #endif
 };
-static struct __pyx_vtabstruct_5_cdec_HypergraphNode __pyx_vtable_5_cdec_HypergraphNode;
 
-static PyObject *__pyx_tp_new_5_cdec_HypergraphNode(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_5_cdec_HypergraphNode *p;
+static struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_5___str__ *__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_5___str__[8];
+static int __pyx_freecount_4cdec_5_cdec___pyx_scope_struct_5___str__ = 0;
+
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_5___str__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_5___str__ *p;
   PyObject *o;
-  o = (*t->tp_alloc)(t, 0);
-  if (unlikely(!o)) return 0;
-  p = ((struct __pyx_obj_5_cdec_HypergraphNode *)o);
-  p->__pyx_vtab = __pyx_vtabptr_5_cdec_HypergraphNode;
+  if (likely((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_5___str__ > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_5___str__)))) {
+    o = (PyObject*)__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_5___str__[--__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_5___str__];
+    memset(o, 0, sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_5___str__));
+    PyObject_INIT(o, t);
+    PyObject_GC_Track(o);
+  } else {
+    o = (*t->tp_alloc)(t, 0);
+    if (unlikely(!o)) return 0;
+  }
+  p = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_5___str__ *)o);
+  p->__pyx_v_self = 0;
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec_HypergraphNode(PyObject *o) {
-  (*Py_TYPE(o)->tp_free)(o);
-}
-
-static PyObject *__pyx_getprop_5_cdec_14HypergraphNode_in_edges(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_5_cdec_14HypergraphNode_8in_edges_1__get__(o);
-}
-
-static PyObject *__pyx_getprop_5_cdec_14HypergraphNode_out_edges(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_5_cdec_14HypergraphNode_9out_edges_1__get__(o);
+static void __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_5___str__(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_5___str__ *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_5___str__ *)o;
+  PyObject_GC_UnTrack(o);
+  Py_CLEAR(p->__pyx_v_self);
+  if ((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_5___str__ < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_5___str__))) {
+    __pyx_freelist_4cdec_5_cdec___pyx_scope_struct_5___str__[__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_5___str__++] = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_5___str__ *)o);
+  } else {
+    (*Py_TYPE(o)->tp_free)(o);
+  }
 }
 
-static PyObject *__pyx_getprop_5_cdec_14HypergraphNode_span(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_5_cdec_14HypergraphNode_4span_1__get__(o);
+static int __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_5___str__(PyObject *o, visitproc v, void *a) {
+  int e;
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_5___str__ *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_5___str__ *)o;
+  if (p->__pyx_v_self) {
+    e = (*v)(((PyObject*)p->__pyx_v_self), a); if (e) return e;
+  }
+  return 0;
 }
 
-static PyObject *__pyx_getprop_5_cdec_14HypergraphNode_cat(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_5_cdec_14HypergraphNode_3cat_1__get__(o);
+static int __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_5___str__(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_5___str__ *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_5___str__ *)o;
+  PyObject* tmp;
+  tmp = ((PyObject*)p->__pyx_v_self);
+  p->__pyx_v_self = ((struct __pyx_obj_4cdec_5_cdec_TRule *)Py_None); Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  return 0;
 }
 
-static PyMethodDef __pyx_methods_5_cdec_HypergraphNode[] = {
+static PyMethodDef __pyx_methods_4cdec_5_cdec___pyx_scope_struct_5___str__[] = {
   {0, 0, 0, 0}
 };
 
-static struct PyGetSetDef __pyx_getsets_5_cdec_HypergraphNode[] = {
-  {(char *)"in_edges", __pyx_getprop_5_cdec_14HypergraphNode_in_edges, 0, 0, 0},
-  {(char *)"out_edges", __pyx_getprop_5_cdec_14HypergraphNode_out_edges, 0, 0, 0},
-  {(char *)"span", __pyx_getprop_5_cdec_14HypergraphNode_span, 0, 0, 0},
-  {(char *)"cat", __pyx_getprop_5_cdec_14HypergraphNode_cat, 0, 0, 0},
-  {0, 0, 0, 0, 0}
-};
-
-static PyTypeObject __pyx_type_5_cdec_HypergraphNode = {
+static PyTypeObject __pyx_type_4cdec_5_cdec___pyx_scope_struct_5___str__ = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.HypergraphNode"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec_HypergraphNode), /*tp_basicsize*/
+  __Pyx_NAMESTR("cdec._cdec.__pyx_scope_struct_5___str__"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_5___str__), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec_HypergraphNode, /*tp_dealloc*/
+  __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_5___str__, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -23088,17 +23426,17 @@ static PyTypeObject __pyx_type_5_cdec_HypergraphNode = {
   0, /*tp_getattro*/
   0, /*tp_setattro*/
   0, /*tp_as_buffer*/
-  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE, /*tp_flags*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  0, /*tp_traverse*/
-  0, /*tp_clear*/
-  __pyx_pw_5_cdec_14HypergraphNode_1__richcmp__, /*tp_richcompare*/
+  __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_5___str__, /*tp_traverse*/
+  __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_5___str__, /*tp_clear*/
+  0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec_HypergraphNode, /*tp_methods*/
+  __pyx_methods_4cdec_5_cdec___pyx_scope_struct_5___str__, /*tp_methods*/
   0, /*tp_members*/
-  __pyx_getsets_5_cdec_HypergraphNode, /*tp_getset*/
+  0, /*tp_getset*/
   0, /*tp_base*/
   0, /*tp_dict*/
   0, /*tp_descr_get*/
@@ -23106,7 +23444,7 @@ static PyTypeObject __pyx_type_5_cdec_HypergraphNode = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec_HypergraphNode, /*tp_new*/
+  __pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_5___str__, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -23120,133 +23458,38 @@ static PyTypeObject __pyx_type_5_cdec_HypergraphNode = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec_SparseVector(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_4cdec_5_cdec_SegmentEvaluator(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
   PyObject *o;
   o = (*t->tp_alloc)(t, 0);
   if (unlikely(!o)) return 0;
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec_SparseVector(PyObject *o) {
+static void __pyx_tp_dealloc_4cdec_5_cdec_SegmentEvaluator(PyObject *o) {
   {
     PyObject *etype, *eval, *etb;
     PyErr_Fetch(&etype, &eval, &etb);
     ++Py_REFCNT(o);
-    __pyx_pw_5_cdec_12SparseVector_3__dealloc__(o);
+    __pyx_pw_4cdec_5_cdec_16SegmentEvaluator_1__dealloc__(o);
     if (PyErr_Occurred()) PyErr_WriteUnraisable(o);
     --Py_REFCNT(o);
     PyErr_Restore(etype, eval, etb);
   }
   (*Py_TYPE(o)->tp_free)(o);
 }
-static PyObject *__pyx_sq_item_5_cdec_SparseVector(PyObject *o, Py_ssize_t i) {
-  PyObject *r;
-  PyObject *x = PyInt_FromSsize_t(i); if(!x) return 0;
-  r = Py_TYPE(o)->tp_as_mapping->mp_subscript(o, x);
-  Py_DECREF(x);
-  return r;
-}
 
-static int __pyx_mp_ass_subscript_5_cdec_SparseVector(PyObject *o, PyObject *i, PyObject *v) {
-  if (v) {
-    return __pyx_pw_5_cdec_12SparseVector_9__setitem__(o, i, v);
-  }
-  else {
-    PyErr_Format(PyExc_NotImplementedError,
-      "Subscript deletion not supported by %s", Py_TYPE(o)->tp_name);
-    return -1;
-  }
-}
-
-static PyMethodDef __pyx_methods_5_cdec_SparseVector[] = {
-  {__Pyx_NAMESTR("copy"), (PyCFunction)__pyx_pw_5_cdec_12SparseVector_5copy, METH_NOARGS, __Pyx_DOCSTR(__pyx_doc_5_cdec_12SparseVector_4copy)},
-  {__Pyx_NAMESTR("dot"), (PyCFunction)__pyx_pw_5_cdec_12SparseVector_14dot, METH_O, __Pyx_DOCSTR(__pyx_doc_5_cdec_12SparseVector_13dot)},
+static PyMethodDef __pyx_methods_4cdec_5_cdec_SegmentEvaluator[] = {
+  {__Pyx_NAMESTR("evaluate"), (PyCFunction)__pyx_pw_4cdec_5_cdec_16SegmentEvaluator_3evaluate, METH_O, __Pyx_DOCSTR(__pyx_doc_4cdec_5_cdec_16SegmentEvaluator_2evaluate)},
+  {__Pyx_NAMESTR("candidate_set"), (PyCFunction)__pyx_pw_4cdec_5_cdec_16SegmentEvaluator_5candidate_set, METH_NOARGS, __Pyx_DOCSTR(__pyx_doc_4cdec_5_cdec_16SegmentEvaluator_4candidate_set)},
   {0, 0, 0, 0}
 };
 
-static PyNumberMethods __pyx_tp_as_number_SparseVector = {
-  __pyx_pw_5_cdec_12SparseVector_32__add__, /*nb_add*/
-  __pyx_pw_5_cdec_12SparseVector_34__sub__, /*nb_subtract*/
-  __pyx_pw_5_cdec_12SparseVector_36__mul__, /*nb_multiply*/
-  #if PY_MAJOR_VERSION < 3
-  __pyx_pw_5_cdec_12SparseVector_38__div__, /*nb_divide*/
-  #endif
-  0, /*nb_remainder*/
-  0, /*nb_divmod*/
-  0, /*nb_power*/
-  __pyx_pw_5_cdec_12SparseVector_22__neg__, /*nb_negative*/
-  0, /*nb_positive*/
-  0, /*nb_absolute*/
-  0, /*nb_nonzero*/
-  0, /*nb_invert*/
-  0, /*nb_lshift*/
-  0, /*nb_rshift*/
-  0, /*nb_and*/
-  0, /*nb_xor*/
-  0, /*nb_or*/
-  #if PY_MAJOR_VERSION < 3
-  0, /*nb_coerce*/
-  #endif
-  0, /*nb_int*/
-  #if PY_MAJOR_VERSION < 3
-  0, /*nb_long*/
-  #else
-  0, /*reserved*/
-  #endif
-  0, /*nb_float*/
-  #if PY_MAJOR_VERSION < 3
-  0, /*nb_oct*/
-  #endif
-  #if PY_MAJOR_VERSION < 3
-  0, /*nb_hex*/
-  #endif
-  __pyx_pw_5_cdec_12SparseVector_24__iadd__, /*nb_inplace_add*/
-  __pyx_pw_5_cdec_12SparseVector_26__isub__, /*nb_inplace_subtract*/
-  __pyx_pw_5_cdec_12SparseVector_28__imul__, /*nb_inplace_multiply*/
-  #if PY_MAJOR_VERSION < 3
-  __pyx_pw_5_cdec_12SparseVector_30__idiv__, /*nb_inplace_divide*/
-  #endif
-  0, /*nb_inplace_remainder*/
-  0, /*nb_inplace_power*/
-  0, /*nb_inplace_lshift*/
-  0, /*nb_inplace_rshift*/
-  0, /*nb_inplace_and*/
-  0, /*nb_inplace_xor*/
-  0, /*nb_inplace_or*/
-  0, /*nb_floor_divide*/
-  0, /*nb_true_divide*/
-  0, /*nb_inplace_floor_divide*/
-  0, /*nb_inplace_true_divide*/
-  #if PY_VERSION_HEX >= 0x02050000
-  0, /*nb_index*/
-  #endif
-};
-
-static PySequenceMethods __pyx_tp_as_sequence_SparseVector = {
-  __pyx_pw_5_cdec_12SparseVector_18__len__, /*sq_length*/
-  0, /*sq_concat*/
-  0, /*sq_repeat*/
-  __pyx_sq_item_5_cdec_SparseVector, /*sq_item*/
-  0, /*sq_slice*/
-  0, /*sq_ass_item*/
-  0, /*sq_ass_slice*/
-  __pyx_pw_5_cdec_12SparseVector_20__contains__, /*sq_contains*/
-  0, /*sq_inplace_concat*/
-  0, /*sq_inplace_repeat*/
-};
-
-static PyMappingMethods __pyx_tp_as_mapping_SparseVector = {
-  __pyx_pw_5_cdec_12SparseVector_18__len__, /*mp_length*/
-  __pyx_pw_5_cdec_12SparseVector_7__getitem__, /*mp_subscript*/
-  __pyx_mp_ass_subscript_5_cdec_SparseVector, /*mp_ass_subscript*/
-};
-
-static PyTypeObject __pyx_type_5_cdec_SparseVector = {
+static PyTypeObject __pyx_type_4cdec_5_cdec_SegmentEvaluator = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.SparseVector"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec_SparseVector), /*tp_basicsize*/
+  __Pyx_NAMESTR("cdec._cdec.SegmentEvaluator"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec_SegmentEvaluator), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec_SparseVector, /*tp_dealloc*/
+  __pyx_tp_dealloc_4cdec_5_cdec_SegmentEvaluator, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -23256,9 +23499,9 @@ static PyTypeObject __pyx_type_5_cdec_SparseVector = {
   0, /*reserved*/
   #endif
   0, /*tp_repr*/
-  &__pyx_tp_as_number_SparseVector, /*tp_as_number*/
-  &__pyx_tp_as_sequence_SparseVector, /*tp_as_sequence*/
-  &__pyx_tp_as_mapping_SparseVector, /*tp_as_mapping*/
+  0, /*tp_as_number*/
+  0, /*tp_as_sequence*/
+  0, /*tp_as_mapping*/
   0, /*tp_hash*/
   0, /*tp_call*/
   0, /*tp_str*/
@@ -23269,11 +23512,11 @@ static PyTypeObject __pyx_type_5_cdec_SparseVector = {
   0, /*tp_doc*/
   0, /*tp_traverse*/
   0, /*tp_clear*/
-  __pyx_pw_5_cdec_12SparseVector_16__richcmp__, /*tp_richcompare*/
+  0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
-  __pyx_pw_5_cdec_12SparseVector_11__iter__, /*tp_iter*/
+  0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec_SparseVector, /*tp_methods*/
+  __pyx_methods_4cdec_5_cdec_SegmentEvaluator, /*tp_methods*/
   0, /*tp_members*/
   0, /*tp_getset*/
   0, /*tp_base*/
@@ -23281,9 +23524,9 @@ static PyTypeObject __pyx_type_5_cdec_SparseVector = {
   0, /*tp_descr_get*/
   0, /*tp_descr_set*/
   0, /*tp_dictoffset*/
-  __pyx_pw_5_cdec_12SparseVector_1__init__, /*tp_init*/
+  0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec_SparseVector, /*tp_new*/
+  __pyx_tp_new_4cdec_5_cdec_SegmentEvaluator, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -23297,65 +23540,65 @@ static PyTypeObject __pyx_type_5_cdec_SparseVector = {
   #endif
 };
 
-static struct __pyx_obj_5_cdec___pyx_scope_struct_17___get__ *__pyx_freelist_5_cdec___pyx_scope_struct_17___get__[8];
-static int __pyx_freecount_5_cdec___pyx_scope_struct_17___get__ = 0;
+static struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_16___get__ *__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_16___get__[8];
+static int __pyx_freecount_4cdec_5_cdec___pyx_scope_struct_16___get__ = 0;
 
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_17___get__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_17___get__ *p;
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_16___get__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_16___get__ *p;
   PyObject *o;
-  if (likely((__pyx_freecount_5_cdec___pyx_scope_struct_17___get__ > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_17___get__)))) {
-    o = (PyObject*)__pyx_freelist_5_cdec___pyx_scope_struct_17___get__[--__pyx_freecount_5_cdec___pyx_scope_struct_17___get__];
-    memset(o, 0, sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_17___get__));
+  if (likely((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_16___get__ > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_16___get__)))) {
+    o = (PyObject*)__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_16___get__[--__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_16___get__];
+    memset(o, 0, sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_16___get__));
     PyObject_INIT(o, t);
     PyObject_GC_Track(o);
   } else {
     o = (*t->tp_alloc)(t, 0);
     if (unlikely(!o)) return 0;
   }
-  p = ((struct __pyx_obj_5_cdec___pyx_scope_struct_17___get__ *)o);
+  p = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_16___get__ *)o);
   p->__pyx_v_self = 0;
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec___pyx_scope_struct_17___get__(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_17___get__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_17___get__ *)o;
+static void __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_16___get__(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_16___get__ *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_16___get__ *)o;
   PyObject_GC_UnTrack(o);
   Py_CLEAR(p->__pyx_v_self);
-  if ((__pyx_freecount_5_cdec___pyx_scope_struct_17___get__ < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_17___get__))) {
-    __pyx_freelist_5_cdec___pyx_scope_struct_17___get__[__pyx_freecount_5_cdec___pyx_scope_struct_17___get__++] = ((struct __pyx_obj_5_cdec___pyx_scope_struct_17___get__ *)o);
+  if ((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_16___get__ < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_16___get__))) {
+    __pyx_freelist_4cdec_5_cdec___pyx_scope_struct_16___get__[__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_16___get__++] = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_16___get__ *)o);
   } else {
     (*Py_TYPE(o)->tp_free)(o);
   }
 }
 
-static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_17___get__(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_16___get__(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_5_cdec___pyx_scope_struct_17___get__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_17___get__ *)o;
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_16___get__ *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_16___get__ *)o;
   if (p->__pyx_v_self) {
     e = (*v)(((PyObject*)p->__pyx_v_self), a); if (e) return e;
   }
   return 0;
 }
 
-static int __pyx_tp_clear_5_cdec___pyx_scope_struct_17___get__(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_17___get__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_17___get__ *)o;
+static int __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_16___get__(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_16___get__ *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_16___get__ *)o;
   PyObject* tmp;
   tmp = ((PyObject*)p->__pyx_v_self);
-  p->__pyx_v_self = ((struct __pyx_obj_5_cdec_HypergraphNode *)Py_None); Py_INCREF(Py_None);
+  p->__pyx_v_self = ((struct __pyx_obj_4cdec_5_cdec_HypergraphNode *)Py_None); Py_INCREF(Py_None);
   Py_XDECREF(tmp);
   return 0;
 }
 
-static PyMethodDef __pyx_methods_5_cdec___pyx_scope_struct_17___get__[] = {
+static PyMethodDef __pyx_methods_4cdec_5_cdec___pyx_scope_struct_16___get__[] = {
   {0, 0, 0, 0}
 };
 
-static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_17___get__ = {
+static PyTypeObject __pyx_type_4cdec_5_cdec___pyx_scope_struct_16___get__ = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.__pyx_scope_struct_17___get__"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_17___get__), /*tp_basicsize*/
+  __Pyx_NAMESTR("cdec._cdec.__pyx_scope_struct_16___get__"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_16___get__), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec___pyx_scope_struct_17___get__, /*tp_dealloc*/
+  __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_16___get__, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -23376,13 +23619,13 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_17___get__ = {
   0, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_5_cdec___pyx_scope_struct_17___get__, /*tp_traverse*/
-  __pyx_tp_clear_5_cdec___pyx_scope_struct_17___get__, /*tp_clear*/
+  __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_16___get__, /*tp_traverse*/
+  __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_16___get__, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec___pyx_scope_struct_17___get__, /*tp_methods*/
+  __pyx_methods_4cdec_5_cdec___pyx_scope_struct_16___get__, /*tp_methods*/
   0, /*tp_members*/
   0, /*tp_getset*/
   0, /*tp_base*/
@@ -23392,7 +23635,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_17___get__ = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec___pyx_scope_struct_17___get__, /*tp_new*/
+  __pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_16___get__, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -23406,65 +23649,81 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_17___get__ = {
   #endif
 };
 
-static struct __pyx_obj_5_cdec___pyx_scope_struct____iter__ *__pyx_freelist_5_cdec___pyx_scope_struct____iter__[8];
-static int __pyx_freecount_5_cdec___pyx_scope_struct____iter__ = 0;
+static struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_25_genexpr *__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_25_genexpr[8];
+static int __pyx_freecount_4cdec_5_cdec___pyx_scope_struct_25_genexpr = 0;
 
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct____iter__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct____iter__ *p;
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_25_genexpr(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_25_genexpr *p;
   PyObject *o;
-  if (likely((__pyx_freecount_5_cdec___pyx_scope_struct____iter__ > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct____iter__)))) {
-    o = (PyObject*)__pyx_freelist_5_cdec___pyx_scope_struct____iter__[--__pyx_freecount_5_cdec___pyx_scope_struct____iter__];
-    memset(o, 0, sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct____iter__));
+  if (likely((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_25_genexpr > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_25_genexpr)))) {
+    o = (PyObject*)__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_25_genexpr[--__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_25_genexpr];
+    memset(o, 0, sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_25_genexpr));
     PyObject_INIT(o, t);
     PyObject_GC_Track(o);
   } else {
     o = (*t->tp_alloc)(t, 0);
     if (unlikely(!o)) return 0;
   }
-  p = ((struct __pyx_obj_5_cdec___pyx_scope_struct____iter__ *)o);
-  p->__pyx_v_self = 0;
+  p = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_25_genexpr *)o);
+  p->__pyx_outer_scope = 0;
+  p->__pyx_v_kv = 0;
+  p->__pyx_t_0 = 0;
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec___pyx_scope_struct____iter__(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct____iter__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct____iter__ *)o;
+static void __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_25_genexpr(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_25_genexpr *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_25_genexpr *)o;
   PyObject_GC_UnTrack(o);
-  Py_CLEAR(p->__pyx_v_self);
-  if ((__pyx_freecount_5_cdec___pyx_scope_struct____iter__ < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct____iter__))) {
-    __pyx_freelist_5_cdec___pyx_scope_struct____iter__[__pyx_freecount_5_cdec___pyx_scope_struct____iter__++] = ((struct __pyx_obj_5_cdec___pyx_scope_struct____iter__ *)o);
+  Py_CLEAR(p->__pyx_outer_scope);
+  Py_CLEAR(p->__pyx_v_kv);
+  Py_CLEAR(p->__pyx_t_0);
+  if ((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_25_genexpr < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_25_genexpr))) {
+    __pyx_freelist_4cdec_5_cdec___pyx_scope_struct_25_genexpr[__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_25_genexpr++] = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_25_genexpr *)o);
   } else {
     (*Py_TYPE(o)->tp_free)(o);
   }
 }
 
-static int __pyx_tp_traverse_5_cdec___pyx_scope_struct____iter__(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_25_genexpr(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_5_cdec___pyx_scope_struct____iter__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct____iter__ *)o;
-  if (p->__pyx_v_self) {
-    e = (*v)(((PyObject*)p->__pyx_v_self), a); if (e) return e;
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_25_genexpr *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_25_genexpr *)o;
+  if (p->__pyx_outer_scope) {
+    e = (*v)(((PyObject*)p->__pyx_outer_scope), a); if (e) return e;
+  }
+  if (p->__pyx_v_kv) {
+    e = (*v)(p->__pyx_v_kv, a); if (e) return e;
+  }
+  if (p->__pyx_t_0) {
+    e = (*v)(p->__pyx_t_0, a); if (e) return e;
   }
   return 0;
 }
 
-static int __pyx_tp_clear_5_cdec___pyx_scope_struct____iter__(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct____iter__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct____iter__ *)o;
+static int __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_25_genexpr(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_25_genexpr *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_25_genexpr *)o;
   PyObject* tmp;
-  tmp = ((PyObject*)p->__pyx_v_self);
-  p->__pyx_v_self = ((struct __pyx_obj_5_cdec_DenseVector *)Py_None); Py_INCREF(Py_None);
+  tmp = ((PyObject*)p->__pyx_outer_scope);
+  p->__pyx_outer_scope = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_24___init__ *)Py_None); Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->__pyx_v_kv);
+  p->__pyx_v_kv = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->__pyx_t_0);
+  p->__pyx_t_0 = Py_None; Py_INCREF(Py_None);
   Py_XDECREF(tmp);
   return 0;
 }
 
-static PyMethodDef __pyx_methods_5_cdec___pyx_scope_struct____iter__[] = {
+static PyMethodDef __pyx_methods_4cdec_5_cdec___pyx_scope_struct_25_genexpr[] = {
   {0, 0, 0, 0}
 };
 
-static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct____iter__ = {
+static PyTypeObject __pyx_type_4cdec_5_cdec___pyx_scope_struct_25_genexpr = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.__pyx_scope_struct____iter__"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct____iter__), /*tp_basicsize*/
+  __Pyx_NAMESTR("cdec._cdec.__pyx_scope_struct_25_genexpr"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_25_genexpr), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec___pyx_scope_struct____iter__, /*tp_dealloc*/
+  __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_25_genexpr, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -23485,13 +23744,13 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct____iter__ = {
   0, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_5_cdec___pyx_scope_struct____iter__, /*tp_traverse*/
-  __pyx_tp_clear_5_cdec___pyx_scope_struct____iter__, /*tp_clear*/
+  __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_25_genexpr, /*tp_traverse*/
+  __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_25_genexpr, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec___pyx_scope_struct____iter__, /*tp_methods*/
+  __pyx_methods_4cdec_5_cdec___pyx_scope_struct_25_genexpr, /*tp_methods*/
   0, /*tp_members*/
   0, /*tp_getset*/
   0, /*tp_base*/
@@ -23501,7 +23760,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct____iter__ = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec___pyx_scope_struct____iter__, /*tp_new*/
+  __pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_25_genexpr, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -23515,81 +23774,81 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct____iter__ = {
   #endif
 };
 
-static struct __pyx_obj_5_cdec___pyx_scope_struct_21___iter__ *__pyx_freelist_5_cdec___pyx_scope_struct_21___iter__[8];
-static int __pyx_freecount_5_cdec___pyx_scope_struct_21___iter__ = 0;
+static struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_3_genexpr *__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_3_genexpr[8];
+static int __pyx_freecount_4cdec_5_cdec___pyx_scope_struct_3_genexpr = 0;
 
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_21___iter__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_21___iter__ *p;
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_3_genexpr(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_3_genexpr *p;
   PyObject *o;
-  if (likely((__pyx_freecount_5_cdec___pyx_scope_struct_21___iter__ > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_21___iter__)))) {
-    o = (PyObject*)__pyx_freelist_5_cdec___pyx_scope_struct_21___iter__[--__pyx_freecount_5_cdec___pyx_scope_struct_21___iter__];
-    memset(o, 0, sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_21___iter__));
+  if (likely((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_3_genexpr > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_3_genexpr)))) {
+    o = (PyObject*)__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_3_genexpr[--__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_3_genexpr];
+    memset(o, 0, sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_3_genexpr));
     PyObject_INIT(o, t);
     PyObject_GC_Track(o);
   } else {
     o = (*t->tp_alloc)(t, 0);
     if (unlikely(!o)) return 0;
   }
-  p = ((struct __pyx_obj_5_cdec___pyx_scope_struct_21___iter__ *)o);
-  p->__pyx_v_i = 0;
-  p->__pyx_v_self = 0;
-  p->__pyx_t_1 = 0;
+  p = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_3_genexpr *)o);
+  p->__pyx_outer_scope = 0;
+  p->__pyx_v_w = 0;
+  p->__pyx_t_0 = 0;
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec___pyx_scope_struct_21___iter__(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_21___iter__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_21___iter__ *)o;
+static void __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_3_genexpr(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_3_genexpr *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_3_genexpr *)o;
   PyObject_GC_UnTrack(o);
-  Py_CLEAR(p->__pyx_v_i);
-  Py_CLEAR(p->__pyx_v_self);
-  Py_CLEAR(p->__pyx_t_1);
-  if ((__pyx_freecount_5_cdec___pyx_scope_struct_21___iter__ < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_21___iter__))) {
-    __pyx_freelist_5_cdec___pyx_scope_struct_21___iter__[__pyx_freecount_5_cdec___pyx_scope_struct_21___iter__++] = ((struct __pyx_obj_5_cdec___pyx_scope_struct_21___iter__ *)o);
+  Py_CLEAR(p->__pyx_outer_scope);
+  Py_CLEAR(p->__pyx_v_w);
+  Py_CLEAR(p->__pyx_t_0);
+  if ((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_3_genexpr < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_3_genexpr))) {
+    __pyx_freelist_4cdec_5_cdec___pyx_scope_struct_3_genexpr[__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_3_genexpr++] = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_3_genexpr *)o);
   } else {
     (*Py_TYPE(o)->tp_free)(o);
   }
 }
 
-static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_21___iter__(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_3_genexpr(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_5_cdec___pyx_scope_struct_21___iter__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_21___iter__ *)o;
-  if (p->__pyx_v_i) {
-    e = (*v)(p->__pyx_v_i, a); if (e) return e;
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_3_genexpr *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_3_genexpr *)o;
+  if (p->__pyx_outer_scope) {
+    e = (*v)(((PyObject*)p->__pyx_outer_scope), a); if (e) return e;
   }
-  if (p->__pyx_v_self) {
-    e = (*v)(((PyObject*)p->__pyx_v_self), a); if (e) return e;
+  if (p->__pyx_v_w) {
+    e = (*v)(p->__pyx_v_w, a); if (e) return e;
   }
-  if (p->__pyx_t_1) {
-    e = (*v)(p->__pyx_t_1, a); if (e) return e;
+  if (p->__pyx_t_0) {
+    e = (*v)(p->__pyx_t_0, a); if (e) return e;
   }
   return 0;
 }
 
-static int __pyx_tp_clear_5_cdec___pyx_scope_struct_21___iter__(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_21___iter__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_21___iter__ *)o;
+static int __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_3_genexpr(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_3_genexpr *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_3_genexpr *)o;
   PyObject* tmp;
-  tmp = ((PyObject*)p->__pyx_v_i);
-  p->__pyx_v_i = Py_None; Py_INCREF(Py_None);
+  tmp = ((PyObject*)p->__pyx_outer_scope);
+  p->__pyx_outer_scope = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_2__phrase *)Py_None); Py_INCREF(Py_None);
   Py_XDECREF(tmp);
-  tmp = ((PyObject*)p->__pyx_v_self);
-  p->__pyx_v_self = ((struct __pyx_obj_5_cdec_SufficientStats *)Py_None); Py_INCREF(Py_None);
+  tmp = ((PyObject*)p->__pyx_v_w);
+  p->__pyx_v_w = Py_None; Py_INCREF(Py_None);
   Py_XDECREF(tmp);
-  tmp = ((PyObject*)p->__pyx_t_1);
-  p->__pyx_t_1 = Py_None; Py_INCREF(Py_None);
+  tmp = ((PyObject*)p->__pyx_t_0);
+  p->__pyx_t_0 = Py_None; Py_INCREF(Py_None);
   Py_XDECREF(tmp);
   return 0;
 }
 
-static PyMethodDef __pyx_methods_5_cdec___pyx_scope_struct_21___iter__[] = {
+static PyMethodDef __pyx_methods_4cdec_5_cdec___pyx_scope_struct_3_genexpr[] = {
   {0, 0, 0, 0}
 };
 
-static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_21___iter__ = {
+static PyTypeObject __pyx_type_4cdec_5_cdec___pyx_scope_struct_3_genexpr = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.__pyx_scope_struct_21___iter__"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_21___iter__), /*tp_basicsize*/
+  __Pyx_NAMESTR("cdec._cdec.__pyx_scope_struct_3_genexpr"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_3_genexpr), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec___pyx_scope_struct_21___iter__, /*tp_dealloc*/
+  __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_3_genexpr, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -23610,13 +23869,13 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_21___iter__ = {
   0, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_5_cdec___pyx_scope_struct_21___iter__, /*tp_traverse*/
-  __pyx_tp_clear_5_cdec___pyx_scope_struct_21___iter__, /*tp_clear*/
+  __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_3_genexpr, /*tp_traverse*/
+  __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_3_genexpr, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec___pyx_scope_struct_21___iter__, /*tp_methods*/
+  __pyx_methods_4cdec_5_cdec___pyx_scope_struct_3_genexpr, /*tp_methods*/
   0, /*tp_members*/
   0, /*tp_getset*/
   0, /*tp_base*/
@@ -23626,7 +23885,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_21___iter__ = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec___pyx_scope_struct_21___iter__, /*tp_new*/
+  __pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_3_genexpr, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -23640,75 +23899,65 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_21___iter__ = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec_DenseVector(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_11_sample *__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_11_sample[8];
+static int __pyx_freecount_4cdec_5_cdec___pyx_scope_struct_11_sample = 0;
+
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_11_sample(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_11_sample *p;
   PyObject *o;
-  o = (*t->tp_alloc)(t, 0);
-  if (unlikely(!o)) return 0;
+  if (likely((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_11_sample > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_11_sample)))) {
+    o = (PyObject*)__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_11_sample[--__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_11_sample];
+    memset(o, 0, sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_11_sample));
+    PyObject_INIT(o, t);
+    PyObject_GC_Track(o);
+  } else {
+    o = (*t->tp_alloc)(t, 0);
+    if (unlikely(!o)) return 0;
+  }
+  p = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_11_sample *)o);
+  p->__pyx_v_self = 0;
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec_DenseVector(PyObject *o) {
-  {
-    PyObject *etype, *eval, *etb;
-    PyErr_Fetch(&etype, &eval, &etb);
-    ++Py_REFCNT(o);
-    __pyx_pw_5_cdec_11DenseVector_3__dealloc__(o);
-    if (PyErr_Occurred()) PyErr_WriteUnraisable(o);
-    --Py_REFCNT(o);
-    PyErr_Restore(etype, eval, etb);
+static void __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_11_sample(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_11_sample *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_11_sample *)o;
+  PyObject_GC_UnTrack(o);
+  Py_CLEAR(p->__pyx_v_self);
+  if ((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_11_sample < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_11_sample))) {
+    __pyx_freelist_4cdec_5_cdec___pyx_scope_struct_11_sample[__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_11_sample++] = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_11_sample *)o);
+  } else {
+    (*Py_TYPE(o)->tp_free)(o);
   }
-  (*Py_TYPE(o)->tp_free)(o);
-}
-static PyObject *__pyx_sq_item_5_cdec_DenseVector(PyObject *o, Py_ssize_t i) {
-  PyObject *r;
-  PyObject *x = PyInt_FromSsize_t(i); if(!x) return 0;
-  r = Py_TYPE(o)->tp_as_mapping->mp_subscript(o, x);
-  Py_DECREF(x);
-  return r;
 }
 
-static int __pyx_mp_ass_subscript_5_cdec_DenseVector(PyObject *o, PyObject *i, PyObject *v) {
-  if (v) {
-    return __pyx_pw_5_cdec_11DenseVector_9__setitem__(o, i, v);
-  }
-  else {
-    PyErr_Format(PyExc_NotImplementedError,
-      "Subscript deletion not supported by %s", Py_TYPE(o)->tp_name);
-    return -1;
+static int __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_11_sample(PyObject *o, visitproc v, void *a) {
+  int e;
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_11_sample *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_11_sample *)o;
+  if (p->__pyx_v_self) {
+    e = (*v)(((PyObject*)p->__pyx_v_self), a); if (e) return e;
   }
+  return 0;
 }
 
-static PyMethodDef __pyx_methods_5_cdec_DenseVector[] = {
-  {__Pyx_NAMESTR("dot"), (PyCFunction)__pyx_pw_5_cdec_11DenseVector_14dot, METH_O, __Pyx_DOCSTR(__pyx_doc_5_cdec_11DenseVector_13dot)},
-  {__Pyx_NAMESTR("tosparse"), (PyCFunction)__pyx_pw_5_cdec_11DenseVector_16tosparse, METH_NOARGS, __Pyx_DOCSTR(__pyx_doc_5_cdec_11DenseVector_15tosparse)},
-  {0, 0, 0, 0}
-};
-
-static PySequenceMethods __pyx_tp_as_sequence_DenseVector = {
-  __pyx_pw_5_cdec_11DenseVector_5__len__, /*sq_length*/
-  0, /*sq_concat*/
-  0, /*sq_repeat*/
-  __pyx_sq_item_5_cdec_DenseVector, /*sq_item*/
-  0, /*sq_slice*/
-  0, /*sq_ass_item*/
-  0, /*sq_ass_slice*/
-  0, /*sq_contains*/
-  0, /*sq_inplace_concat*/
-  0, /*sq_inplace_repeat*/
-};
+static int __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_11_sample(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_11_sample *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_11_sample *)o;
+  PyObject* tmp;
+  tmp = ((PyObject*)p->__pyx_v_self);
+  p->__pyx_v_self = ((struct __pyx_obj_4cdec_5_cdec_Hypergraph *)Py_None); Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  return 0;
+}
 
-static PyMappingMethods __pyx_tp_as_mapping_DenseVector = {
-  __pyx_pw_5_cdec_11DenseVector_5__len__, /*mp_length*/
-  __pyx_pw_5_cdec_11DenseVector_7__getitem__, /*mp_subscript*/
-  __pyx_mp_ass_subscript_5_cdec_DenseVector, /*mp_ass_subscript*/
+static PyMethodDef __pyx_methods_4cdec_5_cdec___pyx_scope_struct_11_sample[] = {
+  {0, 0, 0, 0}
 };
 
-static PyTypeObject __pyx_type_5_cdec_DenseVector = {
+static PyTypeObject __pyx_type_4cdec_5_cdec___pyx_scope_struct_11_sample = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.DenseVector"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec_DenseVector), /*tp_basicsize*/
+  __Pyx_NAMESTR("cdec._cdec.__pyx_scope_struct_11_sample"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_11_sample), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec_DenseVector, /*tp_dealloc*/
+  __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_11_sample, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -23719,23 +23968,23 @@ static PyTypeObject __pyx_type_5_cdec_DenseVector = {
   #endif
   0, /*tp_repr*/
   0, /*tp_as_number*/
-  &__pyx_tp_as_sequence_DenseVector, /*tp_as_sequence*/
-  &__pyx_tp_as_mapping_DenseVector, /*tp_as_mapping*/
+  0, /*tp_as_sequence*/
+  0, /*tp_as_mapping*/
   0, /*tp_hash*/
   0, /*tp_call*/
   0, /*tp_str*/
   0, /*tp_getattro*/
   0, /*tp_setattro*/
   0, /*tp_as_buffer*/
-  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE, /*tp_flags*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  0, /*tp_traverse*/
-  0, /*tp_clear*/
+  __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_11_sample, /*tp_traverse*/
+  __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_11_sample, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
-  __pyx_pw_5_cdec_11DenseVector_11__iter__, /*tp_iter*/
+  0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec_DenseVector, /*tp_methods*/
+  __pyx_methods_4cdec_5_cdec___pyx_scope_struct_11_sample, /*tp_methods*/
   0, /*tp_members*/
   0, /*tp_getset*/
   0, /*tp_base*/
@@ -23743,9 +23992,9 @@ static PyTypeObject __pyx_type_5_cdec_DenseVector = {
   0, /*tp_descr_get*/
   0, /*tp_descr_set*/
   0, /*tp_dictoffset*/
-  __pyx_pw_5_cdec_11DenseVector_1__init__, /*tp_init*/
+  0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec_DenseVector, /*tp_new*/
+  __pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_11_sample, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -23759,73 +24008,73 @@ static PyTypeObject __pyx_type_5_cdec_DenseVector = {
   #endif
 };
 
-static struct __pyx_obj_5_cdec___pyx_scope_struct_7___iter__ *__pyx_freelist_5_cdec___pyx_scope_struct_7___iter__[8];
-static int __pyx_freecount_5_cdec___pyx_scope_struct_7___iter__ = 0;
+static struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_8_kbest *__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_8_kbest[8];
+static int __pyx_freecount_4cdec_5_cdec___pyx_scope_struct_8_kbest = 0;
 
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_7___iter__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_7___iter__ *p;
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_8_kbest(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_8_kbest *p;
   PyObject *o;
-  if (likely((__pyx_freecount_5_cdec___pyx_scope_struct_7___iter__ > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_7___iter__)))) {
-    o = (PyObject*)__pyx_freelist_5_cdec___pyx_scope_struct_7___iter__[--__pyx_freecount_5_cdec___pyx_scope_struct_7___iter__];
-    memset(o, 0, sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_7___iter__));
+  if (likely((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_8_kbest > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_8_kbest)))) {
+    o = (PyObject*)__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_8_kbest[--__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_8_kbest];
+    memset(o, 0, sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_8_kbest));
     PyObject_INIT(o, t);
     PyObject_GC_Track(o);
   } else {
     o = (*t->tp_alloc)(t, 0);
     if (unlikely(!o)) return 0;
   }
-  p = ((struct __pyx_obj_5_cdec___pyx_scope_struct_7___iter__ *)o);
+  p = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_8_kbest *)o);
   p->__pyx_v_self = 0;
-  p->__pyx_v_trule = 0;
+  p->__pyx_v_size = 0;
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec___pyx_scope_struct_7___iter__(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_7___iter__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_7___iter__ *)o;
+static void __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_8_kbest(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_8_kbest *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_8_kbest *)o;
   PyObject_GC_UnTrack(o);
   Py_CLEAR(p->__pyx_v_self);
-  Py_CLEAR(p->__pyx_v_trule);
-  if ((__pyx_freecount_5_cdec___pyx_scope_struct_7___iter__ < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_7___iter__))) {
-    __pyx_freelist_5_cdec___pyx_scope_struct_7___iter__[__pyx_freecount_5_cdec___pyx_scope_struct_7___iter__++] = ((struct __pyx_obj_5_cdec___pyx_scope_struct_7___iter__ *)o);
+  Py_CLEAR(p->__pyx_v_size);
+  if ((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_8_kbest < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_8_kbest))) {
+    __pyx_freelist_4cdec_5_cdec___pyx_scope_struct_8_kbest[__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_8_kbest++] = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_8_kbest *)o);
   } else {
     (*Py_TYPE(o)->tp_free)(o);
   }
 }
 
-static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_7___iter__(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_8_kbest(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_5_cdec___pyx_scope_struct_7___iter__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_7___iter__ *)o;
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_8_kbest *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_8_kbest *)o;
   if (p->__pyx_v_self) {
     e = (*v)(((PyObject*)p->__pyx_v_self), a); if (e) return e;
   }
-  if (p->__pyx_v_trule) {
-    e = (*v)(((PyObject*)p->__pyx_v_trule), a); if (e) return e;
+  if (p->__pyx_v_size) {
+    e = (*v)(p->__pyx_v_size, a); if (e) return e;
   }
   return 0;
 }
 
-static int __pyx_tp_clear_5_cdec___pyx_scope_struct_7___iter__(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_7___iter__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_7___iter__ *)o;
+static int __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_8_kbest(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_8_kbest *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_8_kbest *)o;
   PyObject* tmp;
   tmp = ((PyObject*)p->__pyx_v_self);
-  p->__pyx_v_self = ((struct __pyx_obj_5_cdec_Grammar *)Py_None); Py_INCREF(Py_None);
+  p->__pyx_v_self = ((struct __pyx_obj_4cdec_5_cdec_Hypergraph *)Py_None); Py_INCREF(Py_None);
   Py_XDECREF(tmp);
-  tmp = ((PyObject*)p->__pyx_v_trule);
-  p->__pyx_v_trule = ((struct __pyx_obj_5_cdec_TRule *)Py_None); Py_INCREF(Py_None);
+  tmp = ((PyObject*)p->__pyx_v_size);
+  p->__pyx_v_size = Py_None; Py_INCREF(Py_None);
   Py_XDECREF(tmp);
   return 0;
 }
 
-static PyMethodDef __pyx_methods_5_cdec___pyx_scope_struct_7___iter__[] = {
+static PyMethodDef __pyx_methods_4cdec_5_cdec___pyx_scope_struct_8_kbest[] = {
   {0, 0, 0, 0}
 };
 
-static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_7___iter__ = {
+static PyTypeObject __pyx_type_4cdec_5_cdec___pyx_scope_struct_8_kbest = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.__pyx_scope_struct_7___iter__"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_7___iter__), /*tp_basicsize*/
+  __Pyx_NAMESTR("cdec._cdec.__pyx_scope_struct_8_kbest"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_8_kbest), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec___pyx_scope_struct_7___iter__, /*tp_dealloc*/
+  __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_8_kbest, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -23846,13 +24095,13 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_7___iter__ = {
   0, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_5_cdec___pyx_scope_struct_7___iter__, /*tp_traverse*/
-  __pyx_tp_clear_5_cdec___pyx_scope_struct_7___iter__, /*tp_clear*/
+  __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_8_kbest, /*tp_traverse*/
+  __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_8_kbest, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec___pyx_scope_struct_7___iter__, /*tp_methods*/
+  __pyx_methods_4cdec_5_cdec___pyx_scope_struct_8_kbest, /*tp_methods*/
   0, /*tp_members*/
   0, /*tp_getset*/
   0, /*tp_base*/
@@ -23862,7 +24111,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_7___iter__ = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec___pyx_scope_struct_7___iter__, /*tp_new*/
+  __pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_8_kbest, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -23876,56 +24125,65 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_7___iter__ = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec_Metric(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_5_cdec_Metric *p;
+static struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_14___get__ *__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_14___get__[8];
+static int __pyx_freecount_4cdec_5_cdec___pyx_scope_struct_14___get__ = 0;
+
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_14___get__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_14___get__ *p;
   PyObject *o;
-  o = (*t->tp_alloc)(t, 0);
-  if (unlikely(!o)) return 0;
-  p = ((struct __pyx_obj_5_cdec_Metric *)o);
-  p->scorer = ((struct __pyx_obj_5_cdec_Scorer *)Py_None); Py_INCREF(Py_None);
-  if (unlikely(__pyx_pw_5_cdec_6Metric_1__cinit__(o, __pyx_empty_tuple, NULL) < 0)) {
-    Py_DECREF(o); o = 0;
+  if (likely((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_14___get__ > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_14___get__)))) {
+    o = (PyObject*)__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_14___get__[--__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_14___get__];
+    memset(o, 0, sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_14___get__));
+    PyObject_INIT(o, t);
+    PyObject_GC_Track(o);
+  } else {
+    o = (*t->tp_alloc)(t, 0);
+    if (unlikely(!o)) return 0;
   }
+  p = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_14___get__ *)o);
+  p->__pyx_v_self = 0;
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec_Metric(PyObject *o) {
-  struct __pyx_obj_5_cdec_Metric *p = (struct __pyx_obj_5_cdec_Metric *)o;
+static void __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_14___get__(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_14___get__ *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_14___get__ *)o;
   PyObject_GC_UnTrack(o);
-  Py_CLEAR(p->scorer);
-  (*Py_TYPE(o)->tp_free)(o);
+  Py_CLEAR(p->__pyx_v_self);
+  if ((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_14___get__ < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_14___get__))) {
+    __pyx_freelist_4cdec_5_cdec___pyx_scope_struct_14___get__[__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_14___get__++] = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_14___get__ *)o);
+  } else {
+    (*Py_TYPE(o)->tp_free)(o);
+  }
 }
 
-static int __pyx_tp_traverse_5_cdec_Metric(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_14___get__(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_5_cdec_Metric *p = (struct __pyx_obj_5_cdec_Metric *)o;
-  if (p->scorer) {
-    e = (*v)(((PyObject*)p->scorer), a); if (e) return e;
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_14___get__ *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_14___get__ *)o;
+  if (p->__pyx_v_self) {
+    e = (*v)(((PyObject*)p->__pyx_v_self), a); if (e) return e;
   }
   return 0;
 }
 
-static int __pyx_tp_clear_5_cdec_Metric(PyObject *o) {
-  struct __pyx_obj_5_cdec_Metric *p = (struct __pyx_obj_5_cdec_Metric *)o;
+static int __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_14___get__(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_14___get__ *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_14___get__ *)o;
   PyObject* tmp;
-  tmp = ((PyObject*)p->scorer);
-  p->scorer = ((struct __pyx_obj_5_cdec_Scorer *)Py_None); Py_INCREF(Py_None);
+  tmp = ((PyObject*)p->__pyx_v_self);
+  p->__pyx_v_self = ((struct __pyx_obj_4cdec_5_cdec_Hypergraph *)Py_None); Py_INCREF(Py_None);
   Py_XDECREF(tmp);
   return 0;
 }
 
-static PyMethodDef __pyx_methods_5_cdec_Metric[] = {
-  {__Pyx_NAMESTR("score"), (PyCFunction)__pyx_pw_5_cdec_6Metric_5score, METH_NOARGS, __Pyx_DOCSTR(0)},
-  {__Pyx_NAMESTR("evaluate"), (PyCFunction)__pyx_pw_5_cdec_6Metric_7evaluate, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)},
+static PyMethodDef __pyx_methods_4cdec_5_cdec___pyx_scope_struct_14___get__[] = {
   {0, 0, 0, 0}
 };
 
-static PyTypeObject __pyx_type_5_cdec_Metric = {
+static PyTypeObject __pyx_type_4cdec_5_cdec___pyx_scope_struct_14___get__ = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.Metric"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec_Metric), /*tp_basicsize*/
+  __Pyx_NAMESTR("cdec._cdec.__pyx_scope_struct_14___get__"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_14___get__), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec_Metric, /*tp_dealloc*/
+  __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_14___get__, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -23939,20 +24197,20 @@ static PyTypeObject __pyx_type_5_cdec_Metric = {
   0, /*tp_as_sequence*/
   0, /*tp_as_mapping*/
   0, /*tp_hash*/
-  __pyx_pw_5_cdec_6Metric_3__call__, /*tp_call*/
+  0, /*tp_call*/
   0, /*tp_str*/
   0, /*tp_getattro*/
   0, /*tp_setattro*/
   0, /*tp_as_buffer*/
-  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_5_cdec_Metric, /*tp_traverse*/
-  __pyx_tp_clear_5_cdec_Metric, /*tp_clear*/
+  __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_14___get__, /*tp_traverse*/
+  __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_14___get__, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec_Metric, /*tp_methods*/
+  __pyx_methods_4cdec_5_cdec___pyx_scope_struct_14___get__, /*tp_methods*/
   0, /*tp_members*/
   0, /*tp_getset*/
   0, /*tp_base*/
@@ -23962,7 +24220,7 @@ static PyTypeObject __pyx_type_5_cdec_Metric = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec_Metric, /*tp_new*/
+  __pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_14___get__, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -23976,134 +24234,73 @@ static PyTypeObject __pyx_type_5_cdec_Metric = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec_SufficientStats(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_7___iter__ *__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_7___iter__[8];
+static int __pyx_freecount_4cdec_5_cdec___pyx_scope_struct_7___iter__ = 0;
+
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_7___iter__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_7___iter__ *p;
   PyObject *o;
-  o = (*t->tp_alloc)(t, 0);
-  if (unlikely(!o)) return 0;
+  if (likely((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_7___iter__ > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_7___iter__)))) {
+    o = (PyObject*)__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_7___iter__[--__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_7___iter__];
+    memset(o, 0, sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_7___iter__));
+    PyObject_INIT(o, t);
+    PyObject_GC_Track(o);
+  } else {
+    o = (*t->tp_alloc)(t, 0);
+    if (unlikely(!o)) return 0;
+  }
+  p = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_7___iter__ *)o);
+  p->__pyx_v_self = 0;
+  p->__pyx_v_trule = 0;
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec_SufficientStats(PyObject *o) {
-  {
-    PyObject *etype, *eval, *etb;
-    PyErr_Fetch(&etype, &eval, &etb);
-    ++Py_REFCNT(o);
-    __pyx_pw_5_cdec_15SufficientStats_1__dealloc__(o);
-    if (PyErr_Occurred()) PyErr_WriteUnraisable(o);
-    --Py_REFCNT(o);
-    PyErr_Restore(etype, eval, etb);
+static void __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_7___iter__(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_7___iter__ *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_7___iter__ *)o;
+  PyObject_GC_UnTrack(o);
+  Py_CLEAR(p->__pyx_v_self);
+  Py_CLEAR(p->__pyx_v_trule);
+  if ((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_7___iter__ < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_7___iter__))) {
+    __pyx_freelist_4cdec_5_cdec___pyx_scope_struct_7___iter__[__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_7___iter__++] = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_7___iter__ *)o);
+  } else {
+    (*Py_TYPE(o)->tp_free)(o);
   }
-  (*Py_TYPE(o)->tp_free)(o);
-}
-static PyObject *__pyx_sq_item_5_cdec_SufficientStats(PyObject *o, Py_ssize_t i) {
-  PyObject *r;
-  PyObject *x = PyInt_FromSsize_t(i); if(!x) return 0;
-  r = Py_TYPE(o)->tp_as_mapping->mp_subscript(o, x);
-  Py_DECREF(x);
-  return r;
 }
 
-static PyObject *__pyx_getprop_5_cdec_15SufficientStats_score(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_5_cdec_15SufficientStats_5score_1__get__(o);
+static int __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_7___iter__(PyObject *o, visitproc v, void *a) {
+  int e;
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_7___iter__ *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_7___iter__ *)o;
+  if (p->__pyx_v_self) {
+    e = (*v)(((PyObject*)p->__pyx_v_self), a); if (e) return e;
+  }
+  if (p->__pyx_v_trule) {
+    e = (*v)(((PyObject*)p->__pyx_v_trule), a); if (e) return e;
+  }
+  return 0;
 }
 
-static PyObject *__pyx_getprop_5_cdec_15SufficientStats_detail(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_5_cdec_15SufficientStats_6detail_1__get__(o);
+static int __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_7___iter__(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_7___iter__ *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_7___iter__ *)o;
+  PyObject* tmp;
+  tmp = ((PyObject*)p->__pyx_v_self);
+  p->__pyx_v_self = ((struct __pyx_obj_4cdec_5_cdec_Grammar *)Py_None); Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->__pyx_v_trule);
+  p->__pyx_v_trule = ((struct __pyx_obj_4cdec_5_cdec_TRule *)Py_None); Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  return 0;
 }
 
-static PyMethodDef __pyx_methods_5_cdec_SufficientStats[] = {
+static PyMethodDef __pyx_methods_4cdec_5_cdec___pyx_scope_struct_7___iter__[] = {
   {0, 0, 0, 0}
 };
 
-static struct PyGetSetDef __pyx_getsets_5_cdec_SufficientStats[] = {
-  {(char *)"score", __pyx_getprop_5_cdec_15SufficientStats_score, 0, 0, 0},
-  {(char *)"detail", __pyx_getprop_5_cdec_15SufficientStats_detail, 0, 0, 0},
-  {0, 0, 0, 0, 0}
-};
-
-static PyNumberMethods __pyx_tp_as_number_SufficientStats = {
-  __pyx_pw_5_cdec_15SufficientStats_12__add__, /*nb_add*/
-  0, /*nb_subtract*/
-  0, /*nb_multiply*/
-  #if PY_MAJOR_VERSION < 3
-  0, /*nb_divide*/
-  #endif
-  0, /*nb_remainder*/
-  0, /*nb_divmod*/
-  0, /*nb_power*/
-  0, /*nb_negative*/
-  0, /*nb_positive*/
-  0, /*nb_absolute*/
-  0, /*nb_nonzero*/
-  0, /*nb_invert*/
-  0, /*nb_lshift*/
-  0, /*nb_rshift*/
-  0, /*nb_and*/
-  0, /*nb_xor*/
-  0, /*nb_or*/
-  #if PY_MAJOR_VERSION < 3
-  0, /*nb_coerce*/
-  #endif
-  0, /*nb_int*/
-  #if PY_MAJOR_VERSION < 3
-  0, /*nb_long*/
-  #else
-  0, /*reserved*/
-  #endif
-  0, /*nb_float*/
-  #if PY_MAJOR_VERSION < 3
-  0, /*nb_oct*/
-  #endif
-  #if PY_MAJOR_VERSION < 3
-  0, /*nb_hex*/
-  #endif
-  __pyx_pw_5_cdec_15SufficientStats_10__iadd__, /*nb_inplace_add*/
-  0, /*nb_inplace_subtract*/
-  0, /*nb_inplace_multiply*/
-  #if PY_MAJOR_VERSION < 3
-  0, /*nb_inplace_divide*/
-  #endif
-  0, /*nb_inplace_remainder*/
-  0, /*nb_inplace_power*/
-  0, /*nb_inplace_lshift*/
-  0, /*nb_inplace_rshift*/
-  0, /*nb_inplace_and*/
-  0, /*nb_inplace_xor*/
-  0, /*nb_inplace_or*/
-  0, /*nb_floor_divide*/
-  0, /*nb_true_divide*/
-  0, /*nb_inplace_floor_divide*/
-  0, /*nb_inplace_true_divide*/
-  #if PY_VERSION_HEX >= 0x02050000
-  0, /*nb_index*/
-  #endif
-};
-
-static PySequenceMethods __pyx_tp_as_sequence_SufficientStats = {
-  __pyx_pw_5_cdec_15SufficientStats_3__len__, /*sq_length*/
-  0, /*sq_concat*/
-  0, /*sq_repeat*/
-  __pyx_sq_item_5_cdec_SufficientStats, /*sq_item*/
-  0, /*sq_slice*/
-  0, /*sq_ass_item*/
-  0, /*sq_ass_slice*/
-  0, /*sq_contains*/
-  0, /*sq_inplace_concat*/
-  0, /*sq_inplace_repeat*/
-};
-
-static PyMappingMethods __pyx_tp_as_mapping_SufficientStats = {
-  __pyx_pw_5_cdec_15SufficientStats_3__len__, /*mp_length*/
-  __pyx_pw_5_cdec_15SufficientStats_8__getitem__, /*mp_subscript*/
-  0, /*mp_ass_subscript*/
-};
-
-static PyTypeObject __pyx_type_5_cdec_SufficientStats = {
+static PyTypeObject __pyx_type_4cdec_5_cdec___pyx_scope_struct_7___iter__ = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.SufficientStats"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec_SufficientStats), /*tp_basicsize*/
+  __Pyx_NAMESTR("cdec._cdec.__pyx_scope_struct_7___iter__"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_7___iter__), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec_SufficientStats, /*tp_dealloc*/
+  __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_7___iter__, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -24113,26 +24310,26 @@ static PyTypeObject __pyx_type_5_cdec_SufficientStats = {
   0, /*reserved*/
   #endif
   0, /*tp_repr*/
-  &__pyx_tp_as_number_SufficientStats, /*tp_as_number*/
-  &__pyx_tp_as_sequence_SufficientStats, /*tp_as_sequence*/
-  &__pyx_tp_as_mapping_SufficientStats, /*tp_as_mapping*/
+  0, /*tp_as_number*/
+  0, /*tp_as_sequence*/
+  0, /*tp_as_mapping*/
   0, /*tp_hash*/
   0, /*tp_call*/
   0, /*tp_str*/
   0, /*tp_getattro*/
   0, /*tp_setattro*/
   0, /*tp_as_buffer*/
-  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE, /*tp_flags*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  0, /*tp_traverse*/
-  0, /*tp_clear*/
+  __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_7___iter__, /*tp_traverse*/
+  __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_7___iter__, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
-  __pyx_pw_5_cdec_15SufficientStats_5__iter__, /*tp_iter*/
+  0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec_SufficientStats, /*tp_methods*/
+  __pyx_methods_4cdec_5_cdec___pyx_scope_struct_7___iter__, /*tp_methods*/
   0, /*tp_members*/
-  __pyx_getsets_5_cdec_SufficientStats, /*tp_getset*/
+  0, /*tp_getset*/
   0, /*tp_base*/
   0, /*tp_dict*/
   0, /*tp_descr_get*/
@@ -24140,7 +24337,7 @@ static PyTypeObject __pyx_type_5_cdec_SufficientStats = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec_SufficientStats, /*tp_new*/
+  __pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_7___iter__, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -24154,73 +24351,22 @@ static PyTypeObject __pyx_type_5_cdec_SufficientStats = {
   #endif
 };
 
-static struct __pyx_obj_5_cdec___pyx_scope_struct_8_kbest *__pyx_freelist_5_cdec___pyx_scope_struct_8_kbest[8];
-static int __pyx_freecount_5_cdec___pyx_scope_struct_8_kbest = 0;
-
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_8_kbest(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_8_kbest *p;
-  PyObject *o;
-  if (likely((__pyx_freecount_5_cdec___pyx_scope_struct_8_kbest > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_8_kbest)))) {
-    o = (PyObject*)__pyx_freelist_5_cdec___pyx_scope_struct_8_kbest[--__pyx_freecount_5_cdec___pyx_scope_struct_8_kbest];
-    memset(o, 0, sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_8_kbest));
-    PyObject_INIT(o, t);
-    PyObject_GC_Track(o);
-  } else {
-    o = (*t->tp_alloc)(t, 0);
-    if (unlikely(!o)) return 0;
-  }
-  p = ((struct __pyx_obj_5_cdec___pyx_scope_struct_8_kbest *)o);
-  p->__pyx_v_self = 0;
-  p->__pyx_v_size = 0;
+static PyObject *__pyx_tp_new_4cdec_5_cdec_TextGrammar(PyTypeObject *t, PyObject *a, PyObject *k) {
+  PyObject *o = __pyx_tp_new_4cdec_5_cdec_Grammar(t, a, k);
+  if (unlikely(!o)) return 0;
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec___pyx_scope_struct_8_kbest(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_8_kbest *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_8_kbest *)o;
-  PyObject_GC_UnTrack(o);
-  Py_CLEAR(p->__pyx_v_self);
-  Py_CLEAR(p->__pyx_v_size);
-  if ((__pyx_freecount_5_cdec___pyx_scope_struct_8_kbest < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_8_kbest))) {
-    __pyx_freelist_5_cdec___pyx_scope_struct_8_kbest[__pyx_freecount_5_cdec___pyx_scope_struct_8_kbest++] = ((struct __pyx_obj_5_cdec___pyx_scope_struct_8_kbest *)o);
-  } else {
-    (*Py_TYPE(o)->tp_free)(o);
-  }
-}
-
-static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_8_kbest(PyObject *o, visitproc v, void *a) {
-  int e;
-  struct __pyx_obj_5_cdec___pyx_scope_struct_8_kbest *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_8_kbest *)o;
-  if (p->__pyx_v_self) {
-    e = (*v)(((PyObject*)p->__pyx_v_self), a); if (e) return e;
-  }
-  if (p->__pyx_v_size) {
-    e = (*v)(p->__pyx_v_size, a); if (e) return e;
-  }
-  return 0;
-}
-
-static int __pyx_tp_clear_5_cdec___pyx_scope_struct_8_kbest(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_8_kbest *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_8_kbest *)o;
-  PyObject* tmp;
-  tmp = ((PyObject*)p->__pyx_v_self);
-  p->__pyx_v_self = ((struct __pyx_obj_5_cdec_Hypergraph *)Py_None); Py_INCREF(Py_None);
-  Py_XDECREF(tmp);
-  tmp = ((PyObject*)p->__pyx_v_size);
-  p->__pyx_v_size = Py_None; Py_INCREF(Py_None);
-  Py_XDECREF(tmp);
-  return 0;
-}
-
-static PyMethodDef __pyx_methods_5_cdec___pyx_scope_struct_8_kbest[] = {
+static PyMethodDef __pyx_methods_4cdec_5_cdec_TextGrammar[] = {
   {0, 0, 0, 0}
 };
 
-static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_8_kbest = {
+static PyTypeObject __pyx_type_4cdec_5_cdec_TextGrammar = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.__pyx_scope_struct_8_kbest"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_8_kbest), /*tp_basicsize*/
+  __Pyx_NAMESTR("cdec._cdec.TextGrammar"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec_TextGrammar), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec___pyx_scope_struct_8_kbest, /*tp_dealloc*/
+  __pyx_tp_dealloc_4cdec_5_cdec_Grammar, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -24239,15 +24385,19 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_8_kbest = {
   0, /*tp_getattro*/
   0, /*tp_setattro*/
   0, /*tp_as_buffer*/
-  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_5_cdec___pyx_scope_struct_8_kbest, /*tp_traverse*/
-  __pyx_tp_clear_5_cdec___pyx_scope_struct_8_kbest, /*tp_clear*/
+  0, /*tp_traverse*/
+  0, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
+  #if CYTHON_COMPILING_IN_PYPY
+  __pyx_pw_4cdec_5_cdec_7Grammar_3__iter__, /*tp_iter*/
+  #else
   0, /*tp_iter*/
+  #endif
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec___pyx_scope_struct_8_kbest, /*tp_methods*/
+  __pyx_methods_4cdec_5_cdec_TextGrammar, /*tp_methods*/
   0, /*tp_members*/
   0, /*tp_getset*/
   0, /*tp_base*/
@@ -24255,9 +24405,9 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_8_kbest = {
   0, /*tp_descr_get*/
   0, /*tp_descr_set*/
   0, /*tp_dictoffset*/
-  0, /*tp_init*/
+  __pyx_pw_4cdec_5_cdec_11TextGrammar_1__init__, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec___pyx_scope_struct_8_kbest, /*tp_new*/
+  __pyx_tp_new_4cdec_5_cdec_TextGrammar, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -24271,81 +24421,86 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_8_kbest = {
   #endif
 };
 
-static struct __pyx_obj_5_cdec___pyx_scope_struct_10_kbest_features *__pyx_freelist_5_cdec___pyx_scope_struct_10_kbest_features[8];
-static int __pyx_freecount_5_cdec___pyx_scope_struct_10_kbest_features = 0;
-
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_10_kbest_features(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_10_kbest_features *p;
+static PyObject *__pyx_tp_new_4cdec_5_cdec_Decoder(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_4cdec_5_cdec_Decoder *p;
   PyObject *o;
-  if (likely((__pyx_freecount_5_cdec___pyx_scope_struct_10_kbest_features > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_10_kbest_features)))) {
-    o = (PyObject*)__pyx_freelist_5_cdec___pyx_scope_struct_10_kbest_features[--__pyx_freecount_5_cdec___pyx_scope_struct_10_kbest_features];
-    memset(o, 0, sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_10_kbest_features));
-    PyObject_INIT(o, t);
-    PyObject_GC_Track(o);
-  } else {
-    o = (*t->tp_alloc)(t, 0);
-    if (unlikely(!o)) return 0;
-  }
-  p = ((struct __pyx_obj_5_cdec___pyx_scope_struct_10_kbest_features *)o);
-  p->__pyx_v_fmap = 0;
-  p->__pyx_v_self = 0;
-  p->__pyx_v_size = 0;
+  o = (*t->tp_alloc)(t, 0);
+  if (unlikely(!o)) return 0;
+  p = ((struct __pyx_obj_4cdec_5_cdec_Decoder *)o);
+  p->weights = ((struct __pyx_obj_4cdec_5_cdec_DenseVector *)Py_None); Py_INCREF(Py_None);
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec___pyx_scope_struct_10_kbest_features(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_10_kbest_features *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_10_kbest_features *)o;
+static void __pyx_tp_dealloc_4cdec_5_cdec_Decoder(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec_Decoder *p = (struct __pyx_obj_4cdec_5_cdec_Decoder *)o;
   PyObject_GC_UnTrack(o);
-  Py_CLEAR(p->__pyx_v_fmap);
-  Py_CLEAR(p->__pyx_v_self);
-  Py_CLEAR(p->__pyx_v_size);
-  if ((__pyx_freecount_5_cdec___pyx_scope_struct_10_kbest_features < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_10_kbest_features))) {
-    __pyx_freelist_5_cdec___pyx_scope_struct_10_kbest_features[__pyx_freecount_5_cdec___pyx_scope_struct_10_kbest_features++] = ((struct __pyx_obj_5_cdec___pyx_scope_struct_10_kbest_features *)o);
-  } else {
-    (*Py_TYPE(o)->tp_free)(o);
+  {
+    PyObject *etype, *eval, *etb;
+    PyErr_Fetch(&etype, &eval, &etb);
+    ++Py_REFCNT(o);
+    __pyx_pw_4cdec_5_cdec_7Decoder_3__dealloc__(o);
+    if (PyErr_Occurred()) PyErr_WriteUnraisable(o);
+    --Py_REFCNT(o);
+    PyErr_Restore(etype, eval, etb);
   }
+  Py_CLEAR(p->weights);
+  (*Py_TYPE(o)->tp_free)(o);
 }
 
-static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_10_kbest_features(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_4cdec_5_cdec_Decoder(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_5_cdec___pyx_scope_struct_10_kbest_features *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_10_kbest_features *)o;
-  if (p->__pyx_v_fmap) {
-    e = (*v)(((PyObject*)p->__pyx_v_fmap), a); if (e) return e;
-  }
-  if (p->__pyx_v_self) {
-    e = (*v)(((PyObject*)p->__pyx_v_self), a); if (e) return e;
-  }
-  if (p->__pyx_v_size) {
-    e = (*v)(p->__pyx_v_size, a); if (e) return e;
+  struct __pyx_obj_4cdec_5_cdec_Decoder *p = (struct __pyx_obj_4cdec_5_cdec_Decoder *)o;
+  if (p->weights) {
+    e = (*v)(((PyObject*)p->weights), a); if (e) return e;
   }
   return 0;
 }
 
-static int __pyx_tp_clear_5_cdec___pyx_scope_struct_10_kbest_features(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_10_kbest_features *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_10_kbest_features *)o;
+static int __pyx_tp_clear_4cdec_5_cdec_Decoder(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec_Decoder *p = (struct __pyx_obj_4cdec_5_cdec_Decoder *)o;
   PyObject* tmp;
-  tmp = ((PyObject*)p->__pyx_v_fmap);
-  p->__pyx_v_fmap = ((struct __pyx_obj_5_cdec_SparseVector *)Py_None); Py_INCREF(Py_None);
-  Py_XDECREF(tmp);
-  tmp = ((PyObject*)p->__pyx_v_self);
-  p->__pyx_v_self = ((struct __pyx_obj_5_cdec_Hypergraph *)Py_None); Py_INCREF(Py_None);
-  Py_XDECREF(tmp);
-  tmp = ((PyObject*)p->__pyx_v_size);
-  p->__pyx_v_size = Py_None; Py_INCREF(Py_None);
+  tmp = ((PyObject*)p->weights);
+  p->weights = ((struct __pyx_obj_4cdec_5_cdec_DenseVector *)Py_None); Py_INCREF(Py_None);
   Py_XDECREF(tmp);
   return 0;
 }
 
-static PyMethodDef __pyx_methods_5_cdec___pyx_scope_struct_10_kbest_features[] = {
+static PyObject *__pyx_getprop_4cdec_5_cdec_7Decoder_weights(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_4cdec_5_cdec_7Decoder_7weights_1__get__(o);
+}
+
+static int __pyx_setprop_4cdec_5_cdec_7Decoder_weights(PyObject *o, PyObject *v, CYTHON_UNUSED void *x) {
+  if (v) {
+    return __pyx_pw_4cdec_5_cdec_7Decoder_7weights_3__set__(o, v);
+  }
+  else {
+    PyErr_SetString(PyExc_NotImplementedError, "__del__");
+    return -1;
+  }
+}
+
+static PyObject *__pyx_getprop_4cdec_5_cdec_7Decoder_formalism(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_4cdec_5_cdec_7Decoder_9formalism_1__get__(o);
+}
+
+static PyMethodDef __pyx_methods_4cdec_5_cdec_Decoder[] = {
+  {__Pyx_NAMESTR("read_weights"), (PyCFunction)__pyx_pw_4cdec_5_cdec_7Decoder_5read_weights, METH_O, __Pyx_DOCSTR(__pyx_doc_4cdec_5_cdec_7Decoder_4read_weights)},
+  {__Pyx_NAMESTR("translate"), (PyCFunction)__pyx_pw_4cdec_5_cdec_7Decoder_7translate, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(__pyx_doc_4cdec_5_cdec_7Decoder_6translate)},
   {0, 0, 0, 0}
 };
 
-static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_10_kbest_features = {
+static struct PyGetSetDef __pyx_getsets_4cdec_5_cdec_Decoder[] = {
+  {(char *)"weights", __pyx_getprop_4cdec_5_cdec_7Decoder_weights, __pyx_setprop_4cdec_5_cdec_7Decoder_weights, 0, 0},
+  {(char *)"formalism", __pyx_getprop_4cdec_5_cdec_7Decoder_formalism, 0, 0, 0},
+  {0, 0, 0, 0, 0}
+};
+
+static PyTypeObject __pyx_type_4cdec_5_cdec_Decoder = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.__pyx_scope_struct_10_kbest_features"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_10_kbest_features), /*tp_basicsize*/
+  __Pyx_NAMESTR("cdec._cdec.Decoder"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec_Decoder), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec___pyx_scope_struct_10_kbest_features, /*tp_dealloc*/
+  __pyx_tp_dealloc_4cdec_5_cdec_Decoder, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -24364,25 +24519,25 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_10_kbest_features = {
   0, /*tp_getattro*/
   0, /*tp_setattro*/
   0, /*tp_as_buffer*/
-  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_5_cdec___pyx_scope_struct_10_kbest_features, /*tp_traverse*/
-  __pyx_tp_clear_5_cdec___pyx_scope_struct_10_kbest_features, /*tp_clear*/
+  __pyx_tp_traverse_4cdec_5_cdec_Decoder, /*tp_traverse*/
+  __pyx_tp_clear_4cdec_5_cdec_Decoder, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec___pyx_scope_struct_10_kbest_features, /*tp_methods*/
+  __pyx_methods_4cdec_5_cdec_Decoder, /*tp_methods*/
   0, /*tp_members*/
-  0, /*tp_getset*/
+  __pyx_getsets_4cdec_5_cdec_Decoder, /*tp_getset*/
   0, /*tp_base*/
   0, /*tp_dict*/
   0, /*tp_descr_get*/
   0, /*tp_descr_set*/
   0, /*tp_dictoffset*/
-  0, /*tp_init*/
+  __pyx_pw_4cdec_5_cdec_7Decoder_1__init__, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec___pyx_scope_struct_10_kbest_features, /*tp_new*/
+  __pyx_tp_new_4cdec_5_cdec_Decoder, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -24396,65 +24551,65 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_10_kbest_features = {
   #endif
 };
 
-static struct __pyx_obj_5_cdec___pyx_scope_struct_15___get__ *__pyx_freelist_5_cdec___pyx_scope_struct_15___get__[8];
-static int __pyx_freecount_5_cdec___pyx_scope_struct_15___get__ = 0;
+static struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct____iter__ *__pyx_freelist_4cdec_5_cdec___pyx_scope_struct____iter__[8];
+static int __pyx_freecount_4cdec_5_cdec___pyx_scope_struct____iter__ = 0;
 
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_15___get__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_15___get__ *p;
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct____iter__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct____iter__ *p;
   PyObject *o;
-  if (likely((__pyx_freecount_5_cdec___pyx_scope_struct_15___get__ > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_15___get__)))) {
-    o = (PyObject*)__pyx_freelist_5_cdec___pyx_scope_struct_15___get__[--__pyx_freecount_5_cdec___pyx_scope_struct_15___get__];
-    memset(o, 0, sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_15___get__));
+  if (likely((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct____iter__ > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct____iter__)))) {
+    o = (PyObject*)__pyx_freelist_4cdec_5_cdec___pyx_scope_struct____iter__[--__pyx_freecount_4cdec_5_cdec___pyx_scope_struct____iter__];
+    memset(o, 0, sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct____iter__));
     PyObject_INIT(o, t);
     PyObject_GC_Track(o);
   } else {
     o = (*t->tp_alloc)(t, 0);
     if (unlikely(!o)) return 0;
   }
-  p = ((struct __pyx_obj_5_cdec___pyx_scope_struct_15___get__ *)o);
+  p = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct____iter__ *)o);
   p->__pyx_v_self = 0;
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec___pyx_scope_struct_15___get__(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_15___get__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_15___get__ *)o;
+static void __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct____iter__(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct____iter__ *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct____iter__ *)o;
   PyObject_GC_UnTrack(o);
   Py_CLEAR(p->__pyx_v_self);
-  if ((__pyx_freecount_5_cdec___pyx_scope_struct_15___get__ < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_15___get__))) {
-    __pyx_freelist_5_cdec___pyx_scope_struct_15___get__[__pyx_freecount_5_cdec___pyx_scope_struct_15___get__++] = ((struct __pyx_obj_5_cdec___pyx_scope_struct_15___get__ *)o);
+  if ((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct____iter__ < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct____iter__))) {
+    __pyx_freelist_4cdec_5_cdec___pyx_scope_struct____iter__[__pyx_freecount_4cdec_5_cdec___pyx_scope_struct____iter__++] = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct____iter__ *)o);
   } else {
     (*Py_TYPE(o)->tp_free)(o);
   }
 }
 
-static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_15___get__(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct____iter__(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_5_cdec___pyx_scope_struct_15___get__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_15___get__ *)o;
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct____iter__ *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct____iter__ *)o;
   if (p->__pyx_v_self) {
     e = (*v)(((PyObject*)p->__pyx_v_self), a); if (e) return e;
   }
   return 0;
 }
 
-static int __pyx_tp_clear_5_cdec___pyx_scope_struct_15___get__(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_15___get__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_15___get__ *)o;
+static int __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct____iter__(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct____iter__ *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct____iter__ *)o;
   PyObject* tmp;
   tmp = ((PyObject*)p->__pyx_v_self);
-  p->__pyx_v_self = ((struct __pyx_obj_5_cdec_HypergraphEdge *)Py_None); Py_INCREF(Py_None);
+  p->__pyx_v_self = ((struct __pyx_obj_4cdec_5_cdec_DenseVector *)Py_None); Py_INCREF(Py_None);
   Py_XDECREF(tmp);
   return 0;
 }
 
-static PyMethodDef __pyx_methods_5_cdec___pyx_scope_struct_15___get__[] = {
+static PyMethodDef __pyx_methods_4cdec_5_cdec___pyx_scope_struct____iter__[] = {
   {0, 0, 0, 0}
 };
 
-static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_15___get__ = {
+static PyTypeObject __pyx_type_4cdec_5_cdec___pyx_scope_struct____iter__ = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.__pyx_scope_struct_15___get__"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_15___get__), /*tp_basicsize*/
+  __Pyx_NAMESTR("cdec._cdec.__pyx_scope_struct____iter__"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct____iter__), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec___pyx_scope_struct_15___get__, /*tp_dealloc*/
+  __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct____iter__, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -24475,13 +24630,13 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_15___get__ = {
   0, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_5_cdec___pyx_scope_struct_15___get__, /*tp_traverse*/
-  __pyx_tp_clear_5_cdec___pyx_scope_struct_15___get__, /*tp_clear*/
+  __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct____iter__, /*tp_traverse*/
+  __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct____iter__, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec___pyx_scope_struct_15___get__, /*tp_methods*/
+  __pyx_methods_4cdec_5_cdec___pyx_scope_struct____iter__, /*tp_methods*/
   0, /*tp_members*/
   0, /*tp_getset*/
   0, /*tp_base*/
@@ -24491,7 +24646,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_15___get__ = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec___pyx_scope_struct_15___get__, /*tp_new*/
+  __pyx_tp_new_4cdec_5_cdec___pyx_scope_struct____iter__, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -24505,65 +24660,65 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_15___get__ = {
   #endif
 };
 
-static struct __pyx_obj_5_cdec___pyx_scope_struct_5___str__ *__pyx_freelist_5_cdec___pyx_scope_struct_5___str__[8];
-static int __pyx_freecount_5_cdec___pyx_scope_struct_5___str__ = 0;
+static struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_17___get__ *__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_17___get__[8];
+static int __pyx_freecount_4cdec_5_cdec___pyx_scope_struct_17___get__ = 0;
 
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_5___str__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_5___str__ *p;
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_17___get__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_17___get__ *p;
   PyObject *o;
-  if (likely((__pyx_freecount_5_cdec___pyx_scope_struct_5___str__ > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_5___str__)))) {
-    o = (PyObject*)__pyx_freelist_5_cdec___pyx_scope_struct_5___str__[--__pyx_freecount_5_cdec___pyx_scope_struct_5___str__];
-    memset(o, 0, sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_5___str__));
+  if (likely((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_17___get__ > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_17___get__)))) {
+    o = (PyObject*)__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_17___get__[--__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_17___get__];
+    memset(o, 0, sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_17___get__));
     PyObject_INIT(o, t);
     PyObject_GC_Track(o);
   } else {
     o = (*t->tp_alloc)(t, 0);
     if (unlikely(!o)) return 0;
   }
-  p = ((struct __pyx_obj_5_cdec___pyx_scope_struct_5___str__ *)o);
+  p = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_17___get__ *)o);
   p->__pyx_v_self = 0;
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec___pyx_scope_struct_5___str__(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_5___str__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_5___str__ *)o;
+static void __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_17___get__(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_17___get__ *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_17___get__ *)o;
   PyObject_GC_UnTrack(o);
   Py_CLEAR(p->__pyx_v_self);
-  if ((__pyx_freecount_5_cdec___pyx_scope_struct_5___str__ < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_5___str__))) {
-    __pyx_freelist_5_cdec___pyx_scope_struct_5___str__[__pyx_freecount_5_cdec___pyx_scope_struct_5___str__++] = ((struct __pyx_obj_5_cdec___pyx_scope_struct_5___str__ *)o);
+  if ((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_17___get__ < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_17___get__))) {
+    __pyx_freelist_4cdec_5_cdec___pyx_scope_struct_17___get__[__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_17___get__++] = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_17___get__ *)o);
   } else {
     (*Py_TYPE(o)->tp_free)(o);
   }
 }
 
-static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_5___str__(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_17___get__(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_5_cdec___pyx_scope_struct_5___str__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_5___str__ *)o;
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_17___get__ *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_17___get__ *)o;
   if (p->__pyx_v_self) {
     e = (*v)(((PyObject*)p->__pyx_v_self), a); if (e) return e;
   }
   return 0;
 }
 
-static int __pyx_tp_clear_5_cdec___pyx_scope_struct_5___str__(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_5___str__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_5___str__ *)o;
+static int __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_17___get__(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_17___get__ *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_17___get__ *)o;
   PyObject* tmp;
   tmp = ((PyObject*)p->__pyx_v_self);
-  p->__pyx_v_self = ((struct __pyx_obj_5_cdec_TRule *)Py_None); Py_INCREF(Py_None);
+  p->__pyx_v_self = ((struct __pyx_obj_4cdec_5_cdec_HypergraphNode *)Py_None); Py_INCREF(Py_None);
   Py_XDECREF(tmp);
   return 0;
 }
 
-static PyMethodDef __pyx_methods_5_cdec___pyx_scope_struct_5___str__[] = {
+static PyMethodDef __pyx_methods_4cdec_5_cdec___pyx_scope_struct_17___get__[] = {
   {0, 0, 0, 0}
 };
 
-static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_5___str__ = {
+static PyTypeObject __pyx_type_4cdec_5_cdec___pyx_scope_struct_17___get__ = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.__pyx_scope_struct_5___str__"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_5___str__), /*tp_basicsize*/
+  __Pyx_NAMESTR("cdec._cdec.__pyx_scope_struct_17___get__"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_17___get__), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec___pyx_scope_struct_5___str__, /*tp_dealloc*/
+  __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_17___get__, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -24584,13 +24739,13 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_5___str__ = {
   0, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_5_cdec___pyx_scope_struct_5___str__, /*tp_traverse*/
-  __pyx_tp_clear_5_cdec___pyx_scope_struct_5___str__, /*tp_clear*/
+  __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_17___get__, /*tp_traverse*/
+  __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_17___get__, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec___pyx_scope_struct_5___str__, /*tp_methods*/
+  __pyx_methods_4cdec_5_cdec___pyx_scope_struct_17___get__, /*tp_methods*/
   0, /*tp_members*/
   0, /*tp_getset*/
   0, /*tp_base*/
@@ -24600,7 +24755,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_5___str__ = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec___pyx_scope_struct_5___str__, /*tp_new*/
+  __pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_17___get__, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -24614,89 +24769,65 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_5___str__ = {
   #endif
 };
 
-static struct __pyx_obj_5_cdec___pyx_scope_struct_9_kbest_trees *__pyx_freelist_5_cdec___pyx_scope_struct_9_kbest_trees[8];
-static int __pyx_freecount_5_cdec___pyx_scope_struct_9_kbest_trees = 0;
+static struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_18___iter__ *__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_18___iter__[8];
+static int __pyx_freecount_4cdec_5_cdec___pyx_scope_struct_18___iter__ = 0;
 
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_9_kbest_trees(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_9_kbest_trees *p;
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_18___iter__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_18___iter__ *p;
   PyObject *o;
-  if (likely((__pyx_freecount_5_cdec___pyx_scope_struct_9_kbest_trees > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_9_kbest_trees)))) {
-    o = (PyObject*)__pyx_freelist_5_cdec___pyx_scope_struct_9_kbest_trees[--__pyx_freecount_5_cdec___pyx_scope_struct_9_kbest_trees];
-    memset(o, 0, sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_9_kbest_trees));
+  if (likely((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_18___iter__ > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_18___iter__)))) {
+    o = (PyObject*)__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_18___iter__[--__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_18___iter__];
+    memset(o, 0, sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_18___iter__));
     PyObject_INIT(o, t);
     PyObject_GC_Track(o);
   } else {
     o = (*t->tp_alloc)(t, 0);
     if (unlikely(!o)) return 0;
   }
-  p = ((struct __pyx_obj_5_cdec___pyx_scope_struct_9_kbest_trees *)o);
-  p->__pyx_v_e_tree = 0;
-  p->__pyx_v_f_tree = 0;
+  p = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_18___iter__ *)o);
   p->__pyx_v_self = 0;
-  p->__pyx_v_size = 0;
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec___pyx_scope_struct_9_kbest_trees(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_9_kbest_trees *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_9_kbest_trees *)o;
+static void __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_18___iter__(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_18___iter__ *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_18___iter__ *)o;
   PyObject_GC_UnTrack(o);
-  Py_CLEAR(p->__pyx_v_e_tree);
-  Py_CLEAR(p->__pyx_v_f_tree);
   Py_CLEAR(p->__pyx_v_self);
-  Py_CLEAR(p->__pyx_v_size);
-  if ((__pyx_freecount_5_cdec___pyx_scope_struct_9_kbest_trees < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_9_kbest_trees))) {
-    __pyx_freelist_5_cdec___pyx_scope_struct_9_kbest_trees[__pyx_freecount_5_cdec___pyx_scope_struct_9_kbest_trees++] = ((struct __pyx_obj_5_cdec___pyx_scope_struct_9_kbest_trees *)o);
+  if ((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_18___iter__ < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_18___iter__))) {
+    __pyx_freelist_4cdec_5_cdec___pyx_scope_struct_18___iter__[__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_18___iter__++] = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_18___iter__ *)o);
   } else {
     (*Py_TYPE(o)->tp_free)(o);
   }
 }
 
-static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_9_kbest_trees(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_18___iter__(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_5_cdec___pyx_scope_struct_9_kbest_trees *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_9_kbest_trees *)o;
-  if (p->__pyx_v_e_tree) {
-    e = (*v)(p->__pyx_v_e_tree, a); if (e) return e;
-  }
-  if (p->__pyx_v_f_tree) {
-    e = (*v)(p->__pyx_v_f_tree, a); if (e) return e;
-  }
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_18___iter__ *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_18___iter__ *)o;
   if (p->__pyx_v_self) {
     e = (*v)(((PyObject*)p->__pyx_v_self), a); if (e) return e;
   }
-  if (p->__pyx_v_size) {
-    e = (*v)(p->__pyx_v_size, a); if (e) return e;
-  }
   return 0;
 }
 
-static int __pyx_tp_clear_5_cdec___pyx_scope_struct_9_kbest_trees(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_9_kbest_trees *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_9_kbest_trees *)o;
+static int __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_18___iter__(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_18___iter__ *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_18___iter__ *)o;
   PyObject* tmp;
-  tmp = ((PyObject*)p->__pyx_v_e_tree);
-  p->__pyx_v_e_tree = ((PyObject*)Py_None); Py_INCREF(Py_None);
-  Py_XDECREF(tmp);
-  tmp = ((PyObject*)p->__pyx_v_f_tree);
-  p->__pyx_v_f_tree = ((PyObject*)Py_None); Py_INCREF(Py_None);
-  Py_XDECREF(tmp);
   tmp = ((PyObject*)p->__pyx_v_self);
-  p->__pyx_v_self = ((struct __pyx_obj_5_cdec_Hypergraph *)Py_None); Py_INCREF(Py_None);
-  Py_XDECREF(tmp);
-  tmp = ((PyObject*)p->__pyx_v_size);
-  p->__pyx_v_size = Py_None; Py_INCREF(Py_None);
+  p->__pyx_v_self = ((struct __pyx_obj_4cdec_5_cdec_Lattice *)Py_None); Py_INCREF(Py_None);
   Py_XDECREF(tmp);
   return 0;
 }
 
-static PyMethodDef __pyx_methods_5_cdec___pyx_scope_struct_9_kbest_trees[] = {
+static PyMethodDef __pyx_methods_4cdec_5_cdec___pyx_scope_struct_18___iter__[] = {
   {0, 0, 0, 0}
 };
 
-static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_9_kbest_trees = {
+static PyTypeObject __pyx_type_4cdec_5_cdec___pyx_scope_struct_18___iter__ = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.__pyx_scope_struct_9_kbest_trees"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_9_kbest_trees), /*tp_basicsize*/
+  __Pyx_NAMESTR("cdec._cdec.__pyx_scope_struct_18___iter__"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_18___iter__), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec___pyx_scope_struct_9_kbest_trees, /*tp_dealloc*/
+  __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_18___iter__, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -24717,13 +24848,13 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_9_kbest_trees = {
   0, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_5_cdec___pyx_scope_struct_9_kbest_trees, /*tp_traverse*/
-  __pyx_tp_clear_5_cdec___pyx_scope_struct_9_kbest_trees, /*tp_clear*/
+  __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_18___iter__, /*tp_traverse*/
+  __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_18___iter__, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec___pyx_scope_struct_9_kbest_trees, /*tp_methods*/
+  __pyx_methods_4cdec_5_cdec___pyx_scope_struct_18___iter__, /*tp_methods*/
   0, /*tp_members*/
   0, /*tp_getset*/
   0, /*tp_base*/
@@ -24733,7 +24864,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_9_kbest_trees = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec___pyx_scope_struct_9_kbest_trees, /*tp_new*/
+  __pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_18___iter__, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -24746,81 +24877,82 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_9_kbest_trees = {
   0, /*tp_version_tag*/
   #endif
 };
-static struct __pyx_vtabstruct_5_cdec_Hypergraph __pyx_vtable_5_cdec_Hypergraph;
 
-static PyObject *__pyx_tp_new_5_cdec_Hypergraph(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_5_cdec_Hypergraph *p;
+static struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_6_genexpr *__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_6_genexpr[8];
+static int __pyx_freecount_4cdec_5_cdec___pyx_scope_struct_6_genexpr = 0;
+
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_6_genexpr(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_6_genexpr *p;
   PyObject *o;
-  o = (*t->tp_alloc)(t, 0);
-  if (unlikely(!o)) return 0;
-  p = ((struct __pyx_obj_5_cdec_Hypergraph *)o);
-  p->__pyx_vtab = __pyx_vtabptr_5_cdec_Hypergraph;
+  if (likely((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_6_genexpr > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_6_genexpr)))) {
+    o = (PyObject*)__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_6_genexpr[--__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_6_genexpr];
+    memset(o, 0, sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_6_genexpr));
+    PyObject_INIT(o, t);
+    PyObject_GC_Track(o);
+  } else {
+    o = (*t->tp_alloc)(t, 0);
+    if (unlikely(!o)) return 0;
+  }
+  p = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_6_genexpr *)o);
+  p->__pyx_outer_scope = 0;
+  p->__pyx_v_feat = 0;
+  p->__pyx_t_0 = 0;
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec_Hypergraph(PyObject *o) {
-  {
-    PyObject *etype, *eval, *etb;
-    PyErr_Fetch(&etype, &eval, &etb);
-    ++Py_REFCNT(o);
-    __pyx_pw_5_cdec_10Hypergraph_1__dealloc__(o);
-    if (PyErr_Occurred()) PyErr_WriteUnraisable(o);
-    --Py_REFCNT(o);
-    PyErr_Restore(etype, eval, etb);
+static void __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_6_genexpr(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_6_genexpr *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_6_genexpr *)o;
+  PyObject_GC_UnTrack(o);
+  Py_CLEAR(p->__pyx_outer_scope);
+  Py_CLEAR(p->__pyx_v_feat);
+  Py_CLEAR(p->__pyx_t_0);
+  if ((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_6_genexpr < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_6_genexpr))) {
+    __pyx_freelist_4cdec_5_cdec___pyx_scope_struct_6_genexpr[__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_6_genexpr++] = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_6_genexpr *)o);
+  } else {
+    (*Py_TYPE(o)->tp_free)(o);
   }
-  (*Py_TYPE(o)->tp_free)(o);
 }
 
-static PyObject *__pyx_getprop_5_cdec_10Hypergraph_edges(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_5_cdec_10Hypergraph_5edges_1__get__(o);
-}
-
-static PyObject *__pyx_getprop_5_cdec_10Hypergraph_nodes(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_5_cdec_10Hypergraph_5nodes_1__get__(o);
-}
-
-static PyObject *__pyx_getprop_5_cdec_10Hypergraph_goal(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_5_cdec_10Hypergraph_4goal_1__get__(o);
+static int __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_6_genexpr(PyObject *o, visitproc v, void *a) {
+  int e;
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_6_genexpr *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_6_genexpr *)o;
+  if (p->__pyx_outer_scope) {
+    e = (*v)(((PyObject*)p->__pyx_outer_scope), a); if (e) return e;
+  }
+  if (p->__pyx_v_feat) {
+    e = (*v)(p->__pyx_v_feat, a); if (e) return e;
+  }
+  if (p->__pyx_t_0) {
+    e = (*v)(p->__pyx_t_0, a); if (e) return e;
+  }
+  return 0;
 }
 
-static PyObject *__pyx_getprop_5_cdec_10Hypergraph_npaths(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_5_cdec_10Hypergraph_6npaths_1__get__(o);
+static int __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_6_genexpr(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_6_genexpr *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_6_genexpr *)o;
+  PyObject* tmp;
+  tmp = ((PyObject*)p->__pyx_outer_scope);
+  p->__pyx_outer_scope = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_5___str__ *)Py_None); Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->__pyx_v_feat);
+  p->__pyx_v_feat = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->__pyx_t_0);
+  p->__pyx_t_0 = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  return 0;
 }
 
-static PyMethodDef __pyx_methods_5_cdec_Hypergraph[] = {
-  {__Pyx_NAMESTR("viterbi"), (PyCFunction)__pyx_pw_5_cdec_10Hypergraph_3viterbi, METH_NOARGS, __Pyx_DOCSTR(__pyx_doc_5_cdec_10Hypergraph_2viterbi)},
-  {__Pyx_NAMESTR("viterbi_trees"), (PyCFunction)__pyx_pw_5_cdec_10Hypergraph_5viterbi_trees, METH_NOARGS, __Pyx_DOCSTR(__pyx_doc_5_cdec_10Hypergraph_4viterbi_trees)},
-  {__Pyx_NAMESTR("viterbi_features"), (PyCFunction)__pyx_pw_5_cdec_10Hypergraph_7viterbi_features, METH_NOARGS, __Pyx_DOCSTR(__pyx_doc_5_cdec_10Hypergraph_6viterbi_features)},
-  {__Pyx_NAMESTR("viterbi_forest"), (PyCFunction)__pyx_pw_5_cdec_10Hypergraph_9viterbi_forest, METH_NOARGS, __Pyx_DOCSTR(0)},
-  {__Pyx_NAMESTR("viterbi_joshua"), (PyCFunction)__pyx_pw_5_cdec_10Hypergraph_11viterbi_joshua, METH_NOARGS, __Pyx_DOCSTR(__pyx_doc_5_cdec_10Hypergraph_10viterbi_joshua)},
-  {__Pyx_NAMESTR("kbest"), (PyCFunction)__pyx_pw_5_cdec_10Hypergraph_13kbest, METH_O, __Pyx_DOCSTR(__pyx_doc_5_cdec_10Hypergraph_12kbest)},
-  {__Pyx_NAMESTR("kbest_trees"), (PyCFunction)__pyx_pw_5_cdec_10Hypergraph_16kbest_trees, METH_O, __Pyx_DOCSTR(__pyx_doc_5_cdec_10Hypergraph_15kbest_trees)},
-  {__Pyx_NAMESTR("kbest_features"), (PyCFunction)__pyx_pw_5_cdec_10Hypergraph_19kbest_features, METH_O, __Pyx_DOCSTR(__pyx_doc_5_cdec_10Hypergraph_18kbest_features)},
-  {__Pyx_NAMESTR("sample"), (PyCFunction)__pyx_pw_5_cdec_10Hypergraph_22sample, METH_O, __Pyx_DOCSTR(__pyx_doc_5_cdec_10Hypergraph_21sample)},
-  {__Pyx_NAMESTR("sample_trees"), (PyCFunction)__pyx_pw_5_cdec_10Hypergraph_25sample_trees, METH_O, __Pyx_DOCSTR(__pyx_doc_5_cdec_10Hypergraph_24sample_trees)},
-  {__Pyx_NAMESTR("intersect"), (PyCFunction)__pyx_pw_5_cdec_10Hypergraph_28intersect, METH_O, __Pyx_DOCSTR(__pyx_doc_5_cdec_10Hypergraph_27intersect)},
-  {__Pyx_NAMESTR("prune"), (PyCFunction)__pyx_pw_5_cdec_10Hypergraph_30prune, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(__pyx_doc_5_cdec_10Hypergraph_29prune)},
-  {__Pyx_NAMESTR("lattice"), (PyCFunction)__pyx_pw_5_cdec_10Hypergraph_32lattice, METH_NOARGS, __Pyx_DOCSTR(__pyx_doc_5_cdec_10Hypergraph_31lattice)},
-  {__Pyx_NAMESTR("plf"), (PyCFunction)__pyx_pw_5_cdec_10Hypergraph_34plf, METH_NOARGS, __Pyx_DOCSTR(__pyx_doc_5_cdec_10Hypergraph_33plf)},
-  {__Pyx_NAMESTR("reweight"), (PyCFunction)__pyx_pw_5_cdec_10Hypergraph_36reweight, METH_O, __Pyx_DOCSTR(__pyx_doc_5_cdec_10Hypergraph_35reweight)},
-  {__Pyx_NAMESTR("inside_outside"), (PyCFunction)__pyx_pw_5_cdec_10Hypergraph_38inside_outside, METH_NOARGS, __Pyx_DOCSTR(__pyx_doc_5_cdec_10Hypergraph_37inside_outside)},
+static PyMethodDef __pyx_methods_4cdec_5_cdec___pyx_scope_struct_6_genexpr[] = {
   {0, 0, 0, 0}
 };
 
-static struct PyGetSetDef __pyx_getsets_5_cdec_Hypergraph[] = {
-  {(char *)"edges", __pyx_getprop_5_cdec_10Hypergraph_edges, 0, 0, 0},
-  {(char *)"nodes", __pyx_getprop_5_cdec_10Hypergraph_nodes, 0, 0, 0},
-  {(char *)"goal", __pyx_getprop_5_cdec_10Hypergraph_goal, 0, 0, 0},
-  {(char *)"npaths", __pyx_getprop_5_cdec_10Hypergraph_npaths, 0, 0, 0},
-  {0, 0, 0, 0, 0}
-};
-
-static PyTypeObject __pyx_type_5_cdec_Hypergraph = {
+static PyTypeObject __pyx_type_4cdec_5_cdec___pyx_scope_struct_6_genexpr = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.Hypergraph"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec_Hypergraph), /*tp_basicsize*/
+  __Pyx_NAMESTR("cdec._cdec.__pyx_scope_struct_6_genexpr"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_6_genexpr), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec_Hypergraph, /*tp_dealloc*/
+  __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_6_genexpr, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -24839,17 +24971,17 @@ static PyTypeObject __pyx_type_5_cdec_Hypergraph = {
   0, /*tp_getattro*/
   0, /*tp_setattro*/
   0, /*tp_as_buffer*/
-  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE, /*tp_flags*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  0, /*tp_traverse*/
-  0, /*tp_clear*/
+  __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_6_genexpr, /*tp_traverse*/
+  __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_6_genexpr, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec_Hypergraph, /*tp_methods*/
+  __pyx_methods_4cdec_5_cdec___pyx_scope_struct_6_genexpr, /*tp_methods*/
   0, /*tp_members*/
-  __pyx_getsets_5_cdec_Hypergraph, /*tp_getset*/
+  0, /*tp_getset*/
   0, /*tp_base*/
   0, /*tp_dict*/
   0, /*tp_descr_get*/
@@ -24857,7 +24989,7 @@ static PyTypeObject __pyx_type_5_cdec_Hypergraph = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec_Hypergraph, /*tp_new*/
+  __pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_6_genexpr, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -24871,79 +25003,65 @@ static PyTypeObject __pyx_type_5_cdec_Hypergraph = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec_Lattice(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_12_sample_trees *__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_12_sample_trees[8];
+static int __pyx_freecount_4cdec_5_cdec___pyx_scope_struct_12_sample_trees = 0;
+
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_12_sample_trees(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_12_sample_trees *p;
   PyObject *o;
-  o = (*t->tp_alloc)(t, 0);
-  if (unlikely(!o)) return 0;
-  if (unlikely(__pyx_pw_5_cdec_7Lattice_1__cinit__(o, __pyx_empty_tuple, NULL) < 0)) {
-    Py_DECREF(o); o = 0;
+  if (likely((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_12_sample_trees > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_12_sample_trees)))) {
+    o = (PyObject*)__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_12_sample_trees[--__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_12_sample_trees];
+    memset(o, 0, sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_12_sample_trees));
+    PyObject_INIT(o, t);
+    PyObject_GC_Track(o);
+  } else {
+    o = (*t->tp_alloc)(t, 0);
+    if (unlikely(!o)) return 0;
   }
+  p = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_12_sample_trees *)o);
+  p->__pyx_v_self = 0;
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec_Lattice(PyObject *o) {
-  {
-    PyObject *etype, *eval, *etb;
-    PyErr_Fetch(&etype, &eval, &etb);
-    ++Py_REFCNT(o);
-    __pyx_pw_5_cdec_7Lattice_5__dealloc__(o);
-    if (PyErr_Occurred()) PyErr_WriteUnraisable(o);
-    --Py_REFCNT(o);
-    PyErr_Restore(etype, eval, etb);
+static void __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_12_sample_trees(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_12_sample_trees *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_12_sample_trees *)o;
+  PyObject_GC_UnTrack(o);
+  Py_CLEAR(p->__pyx_v_self);
+  if ((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_12_sample_trees < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_12_sample_trees))) {
+    __pyx_freelist_4cdec_5_cdec___pyx_scope_struct_12_sample_trees[__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_12_sample_trees++] = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_12_sample_trees *)o);
+  } else {
+    (*Py_TYPE(o)->tp_free)(o);
   }
-  (*Py_TYPE(o)->tp_free)(o);
-}
-static PyObject *__pyx_sq_item_5_cdec_Lattice(PyObject *o, Py_ssize_t i) {
-  PyObject *r;
-  PyObject *x = PyInt_FromSsize_t(i); if(!x) return 0;
-  r = Py_TYPE(o)->tp_as_mapping->mp_subscript(o, x);
-  Py_DECREF(x);
-  return r;
 }
 
-static int __pyx_mp_ass_subscript_5_cdec_Lattice(PyObject *o, PyObject *i, PyObject *v) {
-  if (v) {
-    return __pyx_pw_5_cdec_7Lattice_9__setitem__(o, i, v);
-  }
-  else {
-    PyErr_Format(PyExc_NotImplementedError,
-      "Subscript deletion not supported by %s", Py_TYPE(o)->tp_name);
-    return -1;
+static int __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_12_sample_trees(PyObject *o, visitproc v, void *a) {
+  int e;
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_12_sample_trees *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_12_sample_trees *)o;
+  if (p->__pyx_v_self) {
+    e = (*v)(((PyObject*)p->__pyx_v_self), a); if (e) return e;
   }
+  return 0;
 }
 
-static PyMethodDef __pyx_methods_5_cdec_Lattice[] = {
-  {__Pyx_NAMESTR("__unicode__"), (PyCFunction)__pyx_pw_5_cdec_7Lattice_15__unicode__, METH_NOARGS, __Pyx_DOCSTR(0)},
-  {__Pyx_NAMESTR("todot"), (PyCFunction)__pyx_pw_5_cdec_7Lattice_20todot, METH_NOARGS, __Pyx_DOCSTR(__pyx_doc_5_cdec_7Lattice_19todot)},
-  {__Pyx_NAMESTR("as_hypergraph"), (PyCFunction)__pyx_pw_5_cdec_7Lattice_22as_hypergraph, METH_NOARGS, __Pyx_DOCSTR(__pyx_doc_5_cdec_7Lattice_21as_hypergraph)},
-  {0, 0, 0, 0}
-};
-
-static PySequenceMethods __pyx_tp_as_sequence_Lattice = {
-  __pyx_pw_5_cdec_7Lattice_11__len__, /*sq_length*/
-  0, /*sq_concat*/
-  0, /*sq_repeat*/
-  __pyx_sq_item_5_cdec_Lattice, /*sq_item*/
-  0, /*sq_slice*/
-  0, /*sq_ass_item*/
-  0, /*sq_ass_slice*/
-  0, /*sq_contains*/
-  0, /*sq_inplace_concat*/
-  0, /*sq_inplace_repeat*/
-};
+static int __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_12_sample_trees(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_12_sample_trees *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_12_sample_trees *)o;
+  PyObject* tmp;
+  tmp = ((PyObject*)p->__pyx_v_self);
+  p->__pyx_v_self = ((struct __pyx_obj_4cdec_5_cdec_Hypergraph *)Py_None); Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  return 0;
+}
 
-static PyMappingMethods __pyx_tp_as_mapping_Lattice = {
-  __pyx_pw_5_cdec_7Lattice_11__len__, /*mp_length*/
-  __pyx_pw_5_cdec_7Lattice_7__getitem__, /*mp_subscript*/
-  __pyx_mp_ass_subscript_5_cdec_Lattice, /*mp_ass_subscript*/
+static PyMethodDef __pyx_methods_4cdec_5_cdec___pyx_scope_struct_12_sample_trees[] = {
+  {0, 0, 0, 0}
 };
 
-static PyTypeObject __pyx_type_5_cdec_Lattice = {
+static PyTypeObject __pyx_type_4cdec_5_cdec___pyx_scope_struct_12_sample_trees = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.Lattice"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec_Lattice), /*tp_basicsize*/
+  __Pyx_NAMESTR("cdec._cdec.__pyx_scope_struct_12_sample_trees"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_12_sample_trees), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec_Lattice, /*tp_dealloc*/
+  __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_12_sample_trees, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -24954,23 +25072,23 @@ static PyTypeObject __pyx_type_5_cdec_Lattice = {
   #endif
   0, /*tp_repr*/
   0, /*tp_as_number*/
-  &__pyx_tp_as_sequence_Lattice, /*tp_as_sequence*/
-  &__pyx_tp_as_mapping_Lattice, /*tp_as_mapping*/
+  0, /*tp_as_sequence*/
+  0, /*tp_as_mapping*/
   0, /*tp_hash*/
   0, /*tp_call*/
-  __pyx_pw_5_cdec_7Lattice_13__str__, /*tp_str*/
+  0, /*tp_str*/
   0, /*tp_getattro*/
   0, /*tp_setattro*/
   0, /*tp_as_buffer*/
-  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE, /*tp_flags*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  0, /*tp_traverse*/
-  0, /*tp_clear*/
+  __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_12_sample_trees, /*tp_traverse*/
+  __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_12_sample_trees, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
-  __pyx_pw_5_cdec_7Lattice_17__iter__, /*tp_iter*/
+  0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec_Lattice, /*tp_methods*/
+  __pyx_methods_4cdec_5_cdec___pyx_scope_struct_12_sample_trees, /*tp_methods*/
   0, /*tp_members*/
   0, /*tp_getset*/
   0, /*tp_base*/
@@ -24978,9 +25096,9 @@ static PyTypeObject __pyx_type_5_cdec_Lattice = {
   0, /*tp_descr_get*/
   0, /*tp_descr_set*/
   0, /*tp_dictoffset*/
-  __pyx_pw_5_cdec_7Lattice_3__init__, /*tp_init*/
+  0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec_Lattice, /*tp_new*/
+  __pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_12_sample_trees, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -24994,65 +25112,65 @@ static PyTypeObject __pyx_type_5_cdec_Lattice = {
   #endif
 };
 
-static struct __pyx_obj_5_cdec___pyx_scope_struct_11_sample *__pyx_freelist_5_cdec___pyx_scope_struct_11_sample[8];
-static int __pyx_freecount_5_cdec___pyx_scope_struct_11_sample = 0;
+static struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_4___get__ *__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_4___get__[8];
+static int __pyx_freecount_4cdec_5_cdec___pyx_scope_struct_4___get__ = 0;
 
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_11_sample(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_11_sample *p;
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_4___get__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_4___get__ *p;
   PyObject *o;
-  if (likely((__pyx_freecount_5_cdec___pyx_scope_struct_11_sample > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_11_sample)))) {
-    o = (PyObject*)__pyx_freelist_5_cdec___pyx_scope_struct_11_sample[--__pyx_freecount_5_cdec___pyx_scope_struct_11_sample];
-    memset(o, 0, sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_11_sample));
+  if (likely((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_4___get__ > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_4___get__)))) {
+    o = (PyObject*)__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_4___get__[--__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_4___get__];
+    memset(o, 0, sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_4___get__));
     PyObject_INIT(o, t);
     PyObject_GC_Track(o);
   } else {
     o = (*t->tp_alloc)(t, 0);
     if (unlikely(!o)) return 0;
   }
-  p = ((struct __pyx_obj_5_cdec___pyx_scope_struct_11_sample *)o);
+  p = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_4___get__ *)o);
   p->__pyx_v_self = 0;
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec___pyx_scope_struct_11_sample(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_11_sample *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_11_sample *)o;
+static void __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_4___get__(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_4___get__ *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_4___get__ *)o;
   PyObject_GC_UnTrack(o);
   Py_CLEAR(p->__pyx_v_self);
-  if ((__pyx_freecount_5_cdec___pyx_scope_struct_11_sample < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_11_sample))) {
-    __pyx_freelist_5_cdec___pyx_scope_struct_11_sample[__pyx_freecount_5_cdec___pyx_scope_struct_11_sample++] = ((struct __pyx_obj_5_cdec___pyx_scope_struct_11_sample *)o);
+  if ((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_4___get__ < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_4___get__))) {
+    __pyx_freelist_4cdec_5_cdec___pyx_scope_struct_4___get__[__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_4___get__++] = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_4___get__ *)o);
   } else {
     (*Py_TYPE(o)->tp_free)(o);
   }
 }
 
-static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_11_sample(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_4___get__(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_5_cdec___pyx_scope_struct_11_sample *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_11_sample *)o;
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_4___get__ *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_4___get__ *)o;
   if (p->__pyx_v_self) {
     e = (*v)(((PyObject*)p->__pyx_v_self), a); if (e) return e;
   }
   return 0;
 }
 
-static int __pyx_tp_clear_5_cdec___pyx_scope_struct_11_sample(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_11_sample *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_11_sample *)o;
+static int __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_4___get__(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_4___get__ *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_4___get__ *)o;
   PyObject* tmp;
   tmp = ((PyObject*)p->__pyx_v_self);
-  p->__pyx_v_self = ((struct __pyx_obj_5_cdec_Hypergraph *)Py_None); Py_INCREF(Py_None);
+  p->__pyx_v_self = ((struct __pyx_obj_4cdec_5_cdec_TRule *)Py_None); Py_INCREF(Py_None);
   Py_XDECREF(tmp);
   return 0;
 }
 
-static PyMethodDef __pyx_methods_5_cdec___pyx_scope_struct_11_sample[] = {
+static PyMethodDef __pyx_methods_4cdec_5_cdec___pyx_scope_struct_4___get__[] = {
   {0, 0, 0, 0}
 };
 
-static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_11_sample = {
+static PyTypeObject __pyx_type_4cdec_5_cdec___pyx_scope_struct_4___get__ = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.__pyx_scope_struct_11_sample"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_11_sample), /*tp_basicsize*/
+  __Pyx_NAMESTR("cdec._cdec.__pyx_scope_struct_4___get__"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_4___get__), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec___pyx_scope_struct_11_sample, /*tp_dealloc*/
+  __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_4___get__, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -25073,13 +25191,13 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_11_sample = {
   0, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_5_cdec___pyx_scope_struct_11_sample, /*tp_traverse*/
-  __pyx_tp_clear_5_cdec___pyx_scope_struct_11_sample, /*tp_clear*/
+  __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_4___get__, /*tp_traverse*/
+  __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_4___get__, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec___pyx_scope_struct_11_sample, /*tp_methods*/
+  __pyx_methods_4cdec_5_cdec___pyx_scope_struct_4___get__, /*tp_methods*/
   0, /*tp_members*/
   0, /*tp_getset*/
   0, /*tp_base*/
@@ -25089,7 +25207,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_11_sample = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec___pyx_scope_struct_11_sample, /*tp_new*/
+  __pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_4___get__, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -25103,113 +25221,65 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_11_sample = {
   #endif
 };
 
-static struct __pyx_obj_5_cdec___pyx_scope_struct_23__make_config *__pyx_freelist_5_cdec___pyx_scope_struct_23__make_config[8];
-static int __pyx_freecount_5_cdec___pyx_scope_struct_23__make_config = 0;
+static struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_1___iter__ *__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_1___iter__[8];
+static int __pyx_freecount_4cdec_5_cdec___pyx_scope_struct_1___iter__ = 0;
 
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_23__make_config(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_23__make_config *p;
+static PyObject *__pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_1___iter__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_1___iter__ *p;
   PyObject *o;
-  if (likely((__pyx_freecount_5_cdec___pyx_scope_struct_23__make_config > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_23__make_config)))) {
-    o = (PyObject*)__pyx_freelist_5_cdec___pyx_scope_struct_23__make_config[--__pyx_freecount_5_cdec___pyx_scope_struct_23__make_config];
-    memset(o, 0, sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_23__make_config));
+  if (likely((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_1___iter__ > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_1___iter__)))) {
+    o = (PyObject*)__pyx_freelist_4cdec_5_cdec___pyx_scope_struct_1___iter__[--__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_1___iter__];
+    memset(o, 0, sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_1___iter__));
     PyObject_INIT(o, t);
     PyObject_GC_Track(o);
   } else {
     o = (*t->tp_alloc)(t, 0);
     if (unlikely(!o)) return 0;
   }
-  p = ((struct __pyx_obj_5_cdec___pyx_scope_struct_23__make_config *)o);
-  p->__pyx_v_config = 0;
-  p->__pyx_v_info = 0;
-  p->__pyx_v_key = 0;
-  p->__pyx_v_name = 0;
-  p->__pyx_v_value = 0;
-  p->__pyx_t_0 = 0;
-  p->__pyx_t_1 = 0;
+  p = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_1___iter__ *)o);
+  p->__pyx_v_self = 0;
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec___pyx_scope_struct_23__make_config(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_23__make_config *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_23__make_config *)o;
+static void __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_1___iter__(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_1___iter__ *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_1___iter__ *)o;
   PyObject_GC_UnTrack(o);
-  Py_CLEAR(p->__pyx_v_config);
-  Py_CLEAR(p->__pyx_v_info);
-  Py_CLEAR(p->__pyx_v_key);
-  Py_CLEAR(p->__pyx_v_name);
-  Py_CLEAR(p->__pyx_v_value);
-  Py_CLEAR(p->__pyx_t_0);
-  Py_CLEAR(p->__pyx_t_1);
-  if ((__pyx_freecount_5_cdec___pyx_scope_struct_23__make_config < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_23__make_config))) {
-    __pyx_freelist_5_cdec___pyx_scope_struct_23__make_config[__pyx_freecount_5_cdec___pyx_scope_struct_23__make_config++] = ((struct __pyx_obj_5_cdec___pyx_scope_struct_23__make_config *)o);
+  Py_CLEAR(p->__pyx_v_self);
+  if ((__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_1___iter__ < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_1___iter__))) {
+    __pyx_freelist_4cdec_5_cdec___pyx_scope_struct_1___iter__[__pyx_freecount_4cdec_5_cdec___pyx_scope_struct_1___iter__++] = ((struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_1___iter__ *)o);
   } else {
     (*Py_TYPE(o)->tp_free)(o);
   }
 }
 
-static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_23__make_config(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_1___iter__(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_5_cdec___pyx_scope_struct_23__make_config *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_23__make_config *)o;
-  if (p->__pyx_v_config) {
-    e = (*v)(p->__pyx_v_config, a); if (e) return e;
-  }
-  if (p->__pyx_v_info) {
-    e = (*v)(p->__pyx_v_info, a); if (e) return e;
-  }
-  if (p->__pyx_v_key) {
-    e = (*v)(p->__pyx_v_key, a); if (e) return e;
-  }
-  if (p->__pyx_v_name) {
-    e = (*v)(p->__pyx_v_name, a); if (e) return e;
-  }
-  if (p->__pyx_v_value) {
-    e = (*v)(p->__pyx_v_value, a); if (e) return e;
-  }
-  if (p->__pyx_t_0) {
-    e = (*v)(p->__pyx_t_0, a); if (e) return e;
-  }
-  if (p->__pyx_t_1) {
-    e = (*v)(p->__pyx_t_1, a); if (e) return e;
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_1___iter__ *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_1___iter__ *)o;
+  if (p->__pyx_v_self) {
+    e = (*v)(((PyObject*)p->__pyx_v_self), a); if (e) return e;
   }
   return 0;
 }
 
-static int __pyx_tp_clear_5_cdec___pyx_scope_struct_23__make_config(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_23__make_config *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_23__make_config *)o;
+static int __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_1___iter__(PyObject *o) {
+  struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_1___iter__ *p = (struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_1___iter__ *)o;
   PyObject* tmp;
-  tmp = ((PyObject*)p->__pyx_v_config);
-  p->__pyx_v_config = Py_None; Py_INCREF(Py_None);
-  Py_XDECREF(tmp);
-  tmp = ((PyObject*)p->__pyx_v_info);
-  p->__pyx_v_info = Py_None; Py_INCREF(Py_None);
-  Py_XDECREF(tmp);
-  tmp = ((PyObject*)p->__pyx_v_key);
-  p->__pyx_v_key = Py_None; Py_INCREF(Py_None);
-  Py_XDECREF(tmp);
-  tmp = ((PyObject*)p->__pyx_v_name);
-  p->__pyx_v_name = Py_None; Py_INCREF(Py_None);
-  Py_XDECREF(tmp);
-  tmp = ((PyObject*)p->__pyx_v_value);
-  p->__pyx_v_value = Py_None; Py_INCREF(Py_None);
-  Py_XDECREF(tmp);
-  tmp = ((PyObject*)p->__pyx_t_0);
-  p->__pyx_t_0 = Py_None; Py_INCREF(Py_None);
-  Py_XDECREF(tmp);
-  tmp = ((PyObject*)p->__pyx_t_1);
-  p->__pyx_t_1 = Py_None; Py_INCREF(Py_None);
+  tmp = ((PyObject*)p->__pyx_v_self);
+  p->__pyx_v_self = ((struct __pyx_obj_4cdec_5_cdec_SparseVector *)Py_None); Py_INCREF(Py_None);
   Py_XDECREF(tmp);
   return 0;
 }
 
-static PyMethodDef __pyx_methods_5_cdec___pyx_scope_struct_23__make_config[] = {
+static PyMethodDef __pyx_methods_4cdec_5_cdec___pyx_scope_struct_1___iter__[] = {
   {0, 0, 0, 0}
 };
 
-static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_23__make_config = {
+static PyTypeObject __pyx_type_4cdec_5_cdec___pyx_scope_struct_1___iter__ = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.__pyx_scope_struct_23__make_config"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_23__make_config), /*tp_basicsize*/
+  __Pyx_NAMESTR("cdec._cdec.__pyx_scope_struct_1___iter__"), /*tp_name*/
+  sizeof(struct __pyx_obj_4cdec_5_cdec___pyx_scope_struct_1___iter__), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec___pyx_scope_struct_23__make_config, /*tp_dealloc*/
+  __pyx_tp_dealloc_4cdec_5_cdec___pyx_scope_struct_1___iter__, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -25230,13 +25300,13 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_23__make_config = {
   0, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_5_cdec___pyx_scope_struct_23__make_config, /*tp_traverse*/
-  __pyx_tp_clear_5_cdec___pyx_scope_struct_23__make_config, /*tp_clear*/
+  __pyx_tp_traverse_4cdec_5_cdec___pyx_scope_struct_1___iter__, /*tp_traverse*/
+  __pyx_tp_clear_4cdec_5_cdec___pyx_scope_struct_1___iter__, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec___pyx_scope_struct_23__make_config, /*tp_methods*/
+  __pyx_methods_4cdec_5_cdec___pyx_scope_struct_1___iter__, /*tp_methods*/
   0, /*tp_members*/
   0, /*tp_getset*/
   0, /*tp_base*/
@@ -25246,77 +25316,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_23__make_config = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec___pyx_scope_struct_23__make_config, /*tp_new*/
-  0, /*tp_free*/
-  0, /*tp_is_gc*/
-  0, /*tp_bases*/
-  0, /*tp_mro*/
-  0, /*tp_cache*/
-  0, /*tp_subclasses*/
-  0, /*tp_weaklist*/
-  0, /*tp_del*/
-  #if PY_VERSION_HEX >= 0x02060000
-  0, /*tp_version_tag*/
-  #endif
-};
-
-static PyObject *__pyx_tp_new_5_cdec_TextGrammar(PyTypeObject *t, PyObject *a, PyObject *k) {
-  PyObject *o = __pyx_tp_new_5_cdec_Grammar(t, a, k);
-  if (unlikely(!o)) return 0;
-  return o;
-}
-
-static PyMethodDef __pyx_methods_5_cdec_TextGrammar[] = {
-  {0, 0, 0, 0}
-};
-
-static PyTypeObject __pyx_type_5_cdec_TextGrammar = {
-  PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.TextGrammar"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec_TextGrammar), /*tp_basicsize*/
-  0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec_Grammar, /*tp_dealloc*/
-  0, /*tp_print*/
-  0, /*tp_getattr*/
-  0, /*tp_setattr*/
-  #if PY_MAJOR_VERSION < 3
-  0, /*tp_compare*/
-  #else
-  0, /*reserved*/
-  #endif
-  0, /*tp_repr*/
-  0, /*tp_as_number*/
-  0, /*tp_as_sequence*/
-  0, /*tp_as_mapping*/
-  0, /*tp_hash*/
-  0, /*tp_call*/
-  0, /*tp_str*/
-  0, /*tp_getattro*/
-  0, /*tp_setattro*/
-  0, /*tp_as_buffer*/
-  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE, /*tp_flags*/
-  0, /*tp_doc*/
-  0, /*tp_traverse*/
-  0, /*tp_clear*/
-  0, /*tp_richcompare*/
-  0, /*tp_weaklistoffset*/
-  #if CYTHON_COMPILING_IN_PYPY
-  __pyx_pw_5_cdec_7Grammar_3__iter__, /*tp_iter*/
-  #else
-  0, /*tp_iter*/
-  #endif
-  0, /*tp_iternext*/
-  __pyx_methods_5_cdec_TextGrammar, /*tp_methods*/
-  0, /*tp_members*/
-  0, /*tp_getset*/
-  0, /*tp_base*/
-  0, /*tp_dict*/
-  0, /*tp_descr_get*/
-  0, /*tp_descr_set*/
-  0, /*tp_dictoffset*/
-  __pyx_pw_5_cdec_11TextGrammar_1__init__, /*tp_init*/
-  0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec_TextGrammar, /*tp_new*/
+  __pyx_tp_new_4cdec_5_cdec___pyx_scope_struct_1___iter__, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
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   {&__pyx_n_s_38, __pyx_k_38, sizeof(__pyx_k_38), 0, 0, 1, 1},
-  {&__pyx_kp_s_39, __pyx_k_39, sizeof(__pyx_k_39), 0, 0, 1, 0},
+  {&__pyx_n_s_39, __pyx_k_39, sizeof(__pyx_k_39), 0, 0, 1, 1},
   {&__pyx_kp_s_4, __pyx_k_4, sizeof(__pyx_k_4), 0, 0, 1, 0},
-  {&__pyx_kp_s_41, __pyx_k_41, sizeof(__pyx_k_41), 0, 0, 1, 0},
-  {&__pyx_kp_s_43, __pyx_k_43, sizeof(__pyx_k_43), 0, 0, 1, 0},
-  {&__pyx_kp_s_45, __pyx_k_45, sizeof(__pyx_k_45), 0, 0, 1, 0},
+  {&__pyx_kp_s_40, __pyx_k_40, sizeof(__pyx_k_40), 0, 0, 1, 0},
+  {&__pyx_kp_s_42, __pyx_k_42, sizeof(__pyx_k_42), 0, 0, 1, 0},
+  {&__pyx_kp_s_44, __pyx_k_44, sizeof(__pyx_k_44), 0, 0, 1, 0},
   {&__pyx_kp_s_46, __pyx_k_46, sizeof(__pyx_k_46), 0, 0, 1, 0},
   {&__pyx_kp_s_47, __pyx_k_47, sizeof(__pyx_k_47), 0, 0, 1, 0},
   {&__pyx_kp_s_48, __pyx_k_48, sizeof(__pyx_k_48), 0, 0, 1, 0},
   {&__pyx_kp_s_49, __pyx_k_49, sizeof(__pyx_k_49), 0, 0, 1, 0},
-  {&__pyx_kp_s_52, __pyx_k_52, sizeof(__pyx_k_52), 0, 0, 1, 0},
-  {&__pyx_n_s_53, __pyx_k_53, sizeof(__pyx_k_53), 0, 0, 1, 1},
+  {&__pyx_kp_s_50, __pyx_k_50, sizeof(__pyx_k_50), 0, 0, 1, 0},
+  {&__pyx_kp_s_53, __pyx_k_53, sizeof(__pyx_k_53), 0, 0, 1, 0},
   {&__pyx_n_s_54, __pyx_k_54, sizeof(__pyx_k_54), 0, 0, 1, 1},
-  {&__pyx_kp_s_57, __pyx_k_57, sizeof(__pyx_k_57), 0, 0, 1, 0},
-  {&__pyx_kp_s_65, __pyx_k_65, sizeof(__pyx_k_65), 0, 0, 1, 0},
+  {&__pyx_n_s_55, __pyx_k_55, sizeof(__pyx_k_55), 0, 0, 1, 1},
+  {&__pyx_kp_s_58, __pyx_k_58, sizeof(__pyx_k_58), 0, 0, 1, 0},
+  {&__pyx_kp_s_66, __pyx_k_66, sizeof(__pyx_k_66), 0, 0, 1, 0},
   {&__pyx_kp_s_7, __pyx_k_7, sizeof(__pyx_k_7), 0, 0, 1, 0},
   {&__pyx_kp_s_8, __pyx_k_8, sizeof(__pyx_k_8), 0, 0, 1, 0},
   {&__pyx_kp_s_9, __pyx_k_9, sizeof(__pyx_k_9), 0, 0, 1, 0},
@@ -25420,7 +25421,6 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
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   {&__pyx_n_s____qualname__, __pyx_k____qualname__, sizeof(__pyx_k____qualname__), 0, 0, 1, 1},
   {&__pyx_n_s____test__, __pyx_k____test__, sizeof(__pyx_k____test__), 0, 0, 1, 1},
-  {&__pyx_n_s___cdec, __pyx_k___cdec, sizeof(__pyx_k___cdec), 0, 0, 1, 1},
   {&__pyx_n_s___make_config, __pyx_k___make_config, sizeof(__pyx_k___make_config), 0, 0, 1, 1},
   {&__pyx_n_s___phrase, __pyx_k___phrase, sizeof(__pyx_k___phrase), 0, 0, 1, 1},
   {&__pyx_n_s___sa, __pyx_k___sa, sizeof(__pyx_k___sa), 0, 0, 1, 1},
@@ -25518,7 +25518,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__Pyx_InitCachedConstants", 0);
 
-  /* "_cdec.pyx":9
+  /* "cdec/_cdec.pyx":9
  *     cdef bytes ret
  *     if isinstance(data, unicode):
  *         ret = data.encode('utf8')             # <<<<<<<<<<<<<<
@@ -25529,7 +25529,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_k_tuple_2);
   __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_2));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":95
+  /* "/home/mdenkows/cdec/python/cdec/vectors.pxi":95
  *         elif op == 3: # !=
  *             return not (x == y)
  *         raise NotImplemented('comparison not implemented for SparseVector')             # <<<<<<<<<<<<<<
@@ -25540,7 +25540,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_k_tuple_5);
   __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_5));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":6
+  /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":6
  * 
  * def _phrase(phrase):
  *     return ' '.join(w.encode('utf8') if isinstance(w, unicode) else str(w) for w in phrase)             # <<<<<<<<<<<<<<
@@ -25551,7 +25551,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_k_tuple_6);
   __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_6));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":226
+  /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":226
  *                 trule = convert_rule(trule)
  *             elif not isinstance(trule, TRule):
  *                 raise ValueError('the grammar should contain TRule objects')             # <<<<<<<<<<<<<<
@@ -25561,7 +25561,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_k_tuple_14);
   __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_14));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":244
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":244
  *         elif op == 3: # !=
  *             return not (x == y)
  *         raise NotImplemented('comparison not implemented for HypergraphEdge')             # <<<<<<<<<<<<<<
@@ -25572,7 +25572,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_k_tuple_19);
   __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_19));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":281
+  /* "/home/mdenkows/cdec/python/cdec/hypergraph.pxi":281
  *         elif op == 3: # !=
  *             return not (x == y)
  *         raise NotImplemented('comparison not implemented for HypergraphNode')             # <<<<<<<<<<<<<<
@@ -25581,7 +25581,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_k_tuple_21);
   __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_21));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":26
+  /* "/home/mdenkows/cdec/python/cdec/lattice.pxi":26
  *     def __getitem__(self, int index):
  *         if not 0 <= index < len(self):
  *             raise IndexError('lattice index out of range')             # <<<<<<<<<<<<<<
@@ -25592,7 +25592,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_k_tuple_24);
   __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_24));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":39
+  /* "/home/mdenkows/cdec/python/cdec/lattice.pxi":39
  *     def __setitem__(self, int index, tuple arcs):
  *         if not 0 <= index < len(self):
  *             raise IndexError('lattice index out of range')             # <<<<<<<<<<<<<<
@@ -25603,7 +25603,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_k_tuple_25);
   __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_25));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":69
+  /* "/home/mdenkows/cdec/python/cdec/lattice.pxi":69
  *             for i in range(len(self)):
  *                 for label, weight, delta in self[i]:
  *                     yield '%d -> %d [label="%s"];' % (i, i+delta, label.replace('"', '\\"'))             # <<<<<<<<<<<<<<
@@ -25614,7 +25614,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_k_tuple_32);
   __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_32));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":63
+  /* "/home/mdenkows/cdec/python/cdec/lattice.pxi":63
  *     def todot(self):
  *         """lattice.todot() -> Representation of the lattice in GraphViz dot format."""
  *         def lines():             # <<<<<<<<<<<<<<
@@ -25626,148 +25626,148 @@ static int __Pyx_InitCachedConstants(void) {
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":72
+  /* "/home/mdenkows/cdec/python/cdec/lattice.pxi":72
  *             yield '%d [shape=doublecircle]' % len(self)
  *             yield '}'
  *         return '\n'.join(lines()).encode('utf8')             # <<<<<<<<<<<<<<
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  *     def as_hypergraph(self):
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-  __pyx_k_tuple_40 = PyTuple_Pack(1, ((PyObject *)__pyx_n_s__utf8)); if (unlikely(!__pyx_k_tuple_40)) {__pyx_filename = __pyx_f[4]; __pyx_lineno = 72; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_k_tuple_40);
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_40));
+  __pyx_k_tuple_41 = PyTuple_Pack(1, ((PyObject *)__pyx_n_s__utf8)); if (unlikely(!__pyx_k_tuple_41)) {__pyx_filename = __pyx_f[4]; __pyx_lineno = 72; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_k_tuple_41);
+  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_41));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":50
+  /* "/home/mdenkows/cdec/python/cdec/mteval.pxi":50
  *     def __getitem__(self, int index):
  *         if not 0 <= index < len(self):
  *             raise IndexError('sufficient stats vector index out of range')             # <<<<<<<<<<<<<<
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-  __Pyx_GOTREF(__pyx_k_tuple_42);
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_42));
+  __pyx_k_tuple_43 = PyTuple_Pack(1, ((PyObject *)__pyx_kp_s_42)); if (unlikely(!__pyx_k_tuple_43)) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 50; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_k_tuple_43);
+  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_43));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":84
+  /* "/home/mdenkows/cdec/python/cdec/mteval.pxi":84
  *     def __getitem__(self,int k):
  *         if not 0 <= k < self.cs.size():
  *             raise IndexError('candidate set index out of range')             # <<<<<<<<<<<<<<
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  *         candidate.candidate = &self.cs[0][k]
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-  __pyx_k_tuple_44 = PyTuple_Pack(1, ((PyObject *)__pyx_kp_s_43)); if (unlikely(!__pyx_k_tuple_44)) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 84; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_k_tuple_44);
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_44));
+  __pyx_k_tuple_45 = PyTuple_Pack(1, ((PyObject *)__pyx_kp_s_44)); if (unlikely(!__pyx_k_tuple_45)) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 84; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_k_tuple_45);
+  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_45));
 
-  /* "_cdec.pyx":92
+  /* "cdec/_cdec.pyx":92
  *         with open(weights) as fp:
  *             for line in fp:
  *                 if line.strip().startswith('#'): continue             # <<<<<<<<<<<<<<
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  *                 self.weights[fname.strip()] = float(value)
  */
-  __pyx_k_tuple_50 = PyTuple_Pack(1, ((PyObject *)__pyx_kp_s_49)); if (unlikely(!__pyx_k_tuple_50)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 92; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_k_tuple_50);
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_50));
+  __pyx_k_tuple_51 = PyTuple_Pack(1, ((PyObject *)__pyx_kp_s_50)); if (unlikely(!__pyx_k_tuple_51)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 92; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_k_tuple_51);
+  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_51));
 
-  /* "_cdec.pyx":90
+  /* "cdec/_cdec.pyx":90
  *     def read_weights(self, weights):
  *         """decoder.read_weights(filename): Read decoder weights from a file."""
  *         with open(weights) as fp:             # <<<<<<<<<<<<<<
  *             for line in fp:
  *                 if line.strip().startswith('#'): continue
  */
-  __pyx_k_tuple_51 = PyTuple_Pack(3, Py_None, Py_None, Py_None); if (unlikely(!__pyx_k_tuple_51)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 90; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_k_tuple_51);
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_51));
+  __pyx_k_tuple_52 = PyTuple_Pack(3, Py_None, Py_None, Py_None); if (unlikely(!__pyx_k_tuple_52)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 90; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_k_tuple_52);
+  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_52));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":5
+  /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":5
  * import cdec.sa._sa as _sa
  * 
  * def _phrase(phrase):             # <<<<<<<<<<<<<<
  *     return ' '.join(w.encode('utf8') if isinstance(w, unicode) else str(w) for w in phrase)
  * 
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-  __pyx_k_tuple_55 = PyTuple_Pack(3, ((PyObject *)__pyx_n_s__phrase), ((PyObject *)__pyx_n_s__genexpr), ((PyObject *)__pyx_n_s__genexpr)); if (unlikely(!__pyx_k_tuple_55)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 5; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_k_tuple_55);
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_55));
-  __pyx_k_codeobj_56 = (PyObject*)__Pyx_PyCode_New(1, 0, 3, 0, 0, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_k_tuple_55, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_57, __pyx_n_s___phrase, 5, __pyx_empty_bytes); if (unlikely(!__pyx_k_codeobj_56)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 5; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_k_tuple_56 = PyTuple_Pack(3, ((PyObject *)__pyx_n_s__phrase), ((PyObject *)__pyx_n_s__genexpr), ((PyObject *)__pyx_n_s__genexpr)); if (unlikely(!__pyx_k_tuple_56)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 5; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_k_tuple_56);
+  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_56));
+  __pyx_k_codeobj_57 = (PyObject*)__Pyx_PyCode_New(1, 0, 3, 0, 0, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_k_tuple_56, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_58, __pyx_n_s___phrase, 5, __pyx_empty_bytes); if (unlikely(!__pyx_k_codeobj_57)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 5; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":194
+  /* "/home/mdenkows/cdec/python/cdec/mteval.pxi":194
  *         return []
  * 
  * BLEU = Scorer('IBM_BLEU')             # <<<<<<<<<<<<<<
  * QCRI = Scorer('QCRI_BLEU')
  * TER = Scorer('TER')
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-  __pyx_k_tuple_58 = PyTuple_Pack(1, ((PyObject *)__pyx_n_s__IBM_BLEU)); if (unlikely(!__pyx_k_tuple_58)) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 194; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_k_tuple_58);
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_58));
+  __pyx_k_tuple_59 = PyTuple_Pack(1, ((PyObject *)__pyx_n_s__IBM_BLEU)); if (unlikely(!__pyx_k_tuple_59)) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 194; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_k_tuple_59);
+  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_59));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":195
+  /* "/home/mdenkows/cdec/python/cdec/mteval.pxi":195
  * 
  * BLEU = Scorer('IBM_BLEU')
  * QCRI = Scorer('QCRI_BLEU')             # <<<<<<<<<<<<<<
  * TER = Scorer('TER')
  * CER = Scorer('CER')
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-  __pyx_k_tuple_59 = PyTuple_Pack(1, ((PyObject *)__pyx_n_s__QCRI_BLEU)); if (unlikely(!__pyx_k_tuple_59)) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 195; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_k_tuple_59);
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_59));
+  __pyx_k_tuple_60 = PyTuple_Pack(1, ((PyObject *)__pyx_n_s__QCRI_BLEU)); if (unlikely(!__pyx_k_tuple_60)) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 195; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_k_tuple_60);
+  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_60));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":196
+  /* "/home/mdenkows/cdec/python/cdec/mteval.pxi":196
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  * QCRI = Scorer('QCRI_BLEU')
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-  __pyx_k_tuple_60 = PyTuple_Pack(1, ((PyObject *)__pyx_n_s__TER)); if (unlikely(!__pyx_k_tuple_60)) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 196; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_k_tuple_60);
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_60));
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+  __Pyx_GOTREF(__pyx_k_tuple_61);
+  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_61));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":197
+  /* "/home/mdenkows/cdec/python/cdec/mteval.pxi":197
  * QCRI = Scorer('QCRI_BLEU')
  * TER = Scorer('TER')
  * CER = Scorer('CER')             # <<<<<<<<<<<<<<
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-  __pyx_k_tuple_61 = PyTuple_Pack(1, ((PyObject *)__pyx_n_s__CER)); if (unlikely(!__pyx_k_tuple_61)) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 197; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_k_tuple_61);
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_61));
+  __pyx_k_tuple_62 = PyTuple_Pack(1, ((PyObject *)__pyx_n_s__CER)); if (unlikely(!__pyx_k_tuple_62)) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 197; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_k_tuple_62);
+  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_62));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":198
+  /* "/home/mdenkows/cdec/python/cdec/mteval.pxi":198
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  * CER = Scorer('CER')
  * SSK = Scorer('SSK')             # <<<<<<<<<<<<<<
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-  __pyx_k_tuple_62 = PyTuple_Pack(1, ((PyObject *)__pyx_n_s__SSK)); if (unlikely(!__pyx_k_tuple_62)) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 198; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_k_tuple_62);
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_62));
+  __pyx_k_tuple_63 = PyTuple_Pack(1, ((PyObject *)__pyx_n_s__SSK)); if (unlikely(!__pyx_k_tuple_63)) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 198; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_k_tuple_63);
+  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_63));
 
-  /* "_cdec.pyx":28
+  /* "cdec/_cdec.pyx":28
  * class ParseFailed(Exception): pass
  * 
  * def set_silent(yn):             # <<<<<<<<<<<<<<
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-  __pyx_k_tuple_63 = PyTuple_Pack(1, ((PyObject *)__pyx_n_s__yn)); if (unlikely(!__pyx_k_tuple_63)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 28; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_k_tuple_63);
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_63));
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+  __pyx_k_tuple_64 = PyTuple_Pack(1, ((PyObject *)__pyx_n_s__yn)); if (unlikely(!__pyx_k_tuple_64)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 28; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_k_tuple_64);
+  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_64));
+  __pyx_k_codeobj_65 = (PyObject*)__Pyx_PyCode_New(1, 0, 1, 0, 0, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_k_tuple_64, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_66, __pyx_n_s__set_silent, 28, __pyx_empty_bytes); if (unlikely(!__pyx_k_codeobj_65)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 28; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "_cdec.pyx":32
+  /* "cdec/_cdec.pyx":32
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  * 
  * def _make_config(config):             # <<<<<<<<<<<<<<
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-  __pyx_k_tuple_66 = PyTuple_Pack(5, ((PyObject *)__pyx_n_s__config), ((PyObject *)__pyx_n_s__key), ((PyObject *)__pyx_n_s__value), ((PyObject *)__pyx_n_s__name), ((PyObject *)__pyx_n_s__info)); if (unlikely(!__pyx_k_tuple_66)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 32; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_k_tuple_66);
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_66));
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+  __pyx_k_tuple_67 = PyTuple_Pack(5, ((PyObject *)__pyx_n_s__config), ((PyObject *)__pyx_n_s__key), ((PyObject *)__pyx_n_s__value), ((PyObject *)__pyx_n_s__name), ((PyObject *)__pyx_n_s__info)); if (unlikely(!__pyx_k_tuple_67)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 32; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_k_tuple_67);
+  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_67));
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@@ -25841,8 +25841,8 @@ PyMODINIT_FUNC PyInit__cdec(void)
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   {
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-    if (!PyDict_GetItemString(modules, "_cdec")) {
-      if (unlikely(PyDict_SetItemString(modules, "_cdec", __pyx_m) < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (!PyDict_GetItemString(modules, "cdec._cdec")) {
+      if (unlikely(PyDict_SetItemString(modules, "cdec._cdec", __pyx_m) < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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   #endif
@@ -25856,7 +25856,7 @@ PyMODINIT_FUNC PyInit__cdec(void)
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   #endif
-  if (__pyx_module_is_main__cdec) {
+  if (__pyx_module_is_main_cdec___cdec) {
     if (__Pyx_SetAttrString(__pyx_m, "__name__", __pyx_n_s____main__) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
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   /*--- Builtin init code ---*/
@@ -25867,216 +25867,216 @@ PyMODINIT_FUNC PyInit__cdec(void)
   /*--- Variable export code ---*/
   /*--- Function export code ---*/
   /*--- Type init code ---*/
-  if (PyType_Ready(&__pyx_type_5_cdec_Scorer) < 0) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 121; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (__Pyx_SetAttrString(__pyx_m, "Scorer", (PyObject *)&__pyx_type_5_cdec_Scorer) < 0) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 121; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec_Scorer = &__pyx_type_5_cdec_Scorer;
-  if (PyType_Ready(&__pyx_type_5_cdec___pyx_scope_struct_24___init__) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 47; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec___pyx_scope_struct_24___init__ = &__pyx_type_5_cdec___pyx_scope_struct_24___init__;
-  if (PyType_Ready(&__pyx_type_5_cdec_NTRef) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 21; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec_TRule) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 49; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   #if CYTHON_COMPILING_IN_CPYTHON
   {
-    PyObject *wrapper = __Pyx_GetAttrString((PyObject *)&__pyx_type_5_cdec_NTRef, "__init__"); if (unlikely(!wrapper)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 21; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    PyObject *wrapper = __Pyx_GetAttrString((PyObject *)&__pyx_type_4cdec_5_cdec_TRule, "__init__"); if (unlikely(!wrapper)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 49; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     if (Py_TYPE(wrapper) == &PyWrapperDescr_Type) {
-      __pyx_wrapperbase_5_cdec_5NTRef___init__ = *((PyWrapperDescrObject *)wrapper)->d_base;
-      __pyx_wrapperbase_5_cdec_5NTRef___init__.doc = __pyx_doc_5_cdec_5NTRef___init__;
-      ((PyWrapperDescrObject *)wrapper)->d_base = &__pyx_wrapperbase_5_cdec_5NTRef___init__;
+      __pyx_wrapperbase_4cdec_5_cdec_5TRule___init__ = *((PyWrapperDescrObject *)wrapper)->d_base;
+      __pyx_wrapperbase_4cdec_5_cdec_5TRule___init__.doc = __pyx_doc_4cdec_5_cdec_5TRule___init__;
+      ((PyWrapperDescrObject *)wrapper)->d_base = &__pyx_wrapperbase_4cdec_5_cdec_5TRule___init__;
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   #endif
-  if (__Pyx_SetAttrString(__pyx_m, "NTRef", (PyObject *)&__pyx_type_5_cdec_NTRef) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 21; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec_NTRef = &__pyx_type_5_cdec_NTRef;
-  if (PyType_Ready(&__pyx_type_5_cdec___pyx_scope_struct_22___iter__) < 0) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 90; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec___pyx_scope_struct_22___iter__ = &__pyx_type_5_cdec___pyx_scope_struct_22___iter__;
-  if (PyType_Ready(&__pyx_type_5_cdec_Grammar) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 193; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (__Pyx_SetAttrString(__pyx_m, "Grammar", (PyObject *)&__pyx_type_5_cdec_Grammar) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 193; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec_Grammar = &__pyx_type_5_cdec_Grammar;
-  if (PyType_Ready(&__pyx_type_5_cdec___pyx_scope_struct_20_lines) < 0) {__pyx_filename = __pyx_f[4]; __pyx_lineno = 63; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec___pyx_scope_struct_20_lines = &__pyx_type_5_cdec___pyx_scope_struct_20_lines;
-  if (PyType_Ready(&__pyx_type_5_cdec___pyx_scope_struct_12_sample_trees) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 108; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec___pyx_scope_struct_12_sample_trees = &__pyx_type_5_cdec___pyx_scope_struct_12_sample_trees;
-  if (PyType_Ready(&__pyx_type_5_cdec___pyx_scope_struct_13___get__) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 161; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec___pyx_scope_struct_13___get__ = &__pyx_type_5_cdec___pyx_scope_struct_13___get__;
-  if (PyType_Ready(&__pyx_type_5_cdec___pyx_scope_struct_2__phrase) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 5; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec___pyx_scope_struct_2__phrase = &__pyx_type_5_cdec___pyx_scope_struct_2__phrase;
-  if (PyType_Ready(&__pyx_type_5_cdec_CandidateSet) < 0) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 65; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (__Pyx_SetAttrString(__pyx_m, "CandidateSet", (PyObject *)&__pyx_type_5_cdec_CandidateSet) < 0) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 65; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec_CandidateSet = &__pyx_type_5_cdec_CandidateSet;
-  if (PyType_Ready(&__pyx_type_5_cdec___pyx_scope_struct_14___get__) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 167; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec___pyx_scope_struct_14___get__ = &__pyx_type_5_cdec___pyx_scope_struct_14___get__;
-  if (PyType_Ready(&__pyx_type_5_cdec_TRule) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 49; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetAttrString(__pyx_m, "TRule", (PyObject *)&__pyx_type_4cdec_5_cdec_TRule) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 49; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec_TRule = &__pyx_type_4cdec_5_cdec_TRule;
+  __pyx_type_4cdec_5_cdec_MRule.tp_base = __pyx_ptype_4cdec_5_cdec_TRule;
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec_MRule) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 177; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   #if CYTHON_COMPILING_IN_CPYTHON
   {
-    PyObject *wrapper = __Pyx_GetAttrString((PyObject *)&__pyx_type_5_cdec_TRule, "__init__"); if (unlikely(!wrapper)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 49; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    PyObject *wrapper = __Pyx_GetAttrString((PyObject *)&__pyx_type_4cdec_5_cdec_MRule, "__init__"); if (unlikely(!wrapper)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 177; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     if (Py_TYPE(wrapper) == &PyWrapperDescr_Type) {
-      __pyx_wrapperbase_5_cdec_5TRule___init__ = *((PyWrapperDescrObject *)wrapper)->d_base;
-      __pyx_wrapperbase_5_cdec_5TRule___init__.doc = __pyx_doc_5_cdec_5TRule___init__;
-      ((PyWrapperDescrObject *)wrapper)->d_base = &__pyx_wrapperbase_5_cdec_5TRule___init__;
+      __pyx_wrapperbase_4cdec_5_cdec_5MRule___init__ = *((PyWrapperDescrObject *)wrapper)->d_base;
+      __pyx_wrapperbase_4cdec_5_cdec_5MRule___init__.doc = __pyx_doc_4cdec_5_cdec_5MRule___init__;
+      ((PyWrapperDescrObject *)wrapper)->d_base = &__pyx_wrapperbase_4cdec_5_cdec_5MRule___init__;
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   }
   #endif
-  if (__Pyx_SetAttrString(__pyx_m, "TRule", (PyObject *)&__pyx_type_5_cdec_TRule) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 49; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec_TRule = &__pyx_type_5_cdec_TRule;
-  if (PyType_Ready(&__pyx_type_5_cdec___pyx_scope_struct_3_genexpr) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 6; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec___pyx_scope_struct_3_genexpr = &__pyx_type_5_cdec___pyx_scope_struct_3_genexpr;
-  __pyx_type_5_cdec_MRule.tp_base = __pyx_ptype_5_cdec_TRule;
-  if (PyType_Ready(&__pyx_type_5_cdec_MRule) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 177; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetAttrString(__pyx_m, "MRule", (PyObject *)&__pyx_type_4cdec_5_cdec_MRule) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 177; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec_MRule = &__pyx_type_4cdec_5_cdec_MRule;
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec___pyx_scope_struct_22___iter__) < 0) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 90; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec___pyx_scope_struct_22___iter__ = &__pyx_type_4cdec_5_cdec___pyx_scope_struct_22___iter__;
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec_DenseVector) < 0) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 3; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   #if CYTHON_COMPILING_IN_CPYTHON
   {
-    PyObject *wrapper = __Pyx_GetAttrString((PyObject *)&__pyx_type_5_cdec_MRule, "__init__"); if (unlikely(!wrapper)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 177; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    PyObject *wrapper = __Pyx_GetAttrString((PyObject *)&__pyx_type_4cdec_5_cdec_DenseVector, "__init__"); if (unlikely(!wrapper)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 3; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     if (Py_TYPE(wrapper) == &PyWrapperDescr_Type) {
-      __pyx_wrapperbase_5_cdec_5MRule___init__ = *((PyWrapperDescrObject *)wrapper)->d_base;
-      __pyx_wrapperbase_5_cdec_5MRule___init__.doc = __pyx_doc_5_cdec_5MRule___init__;
-      ((PyWrapperDescrObject *)wrapper)->d_base = &__pyx_wrapperbase_5_cdec_5MRule___init__;
+      __pyx_wrapperbase_4cdec_5_cdec_11DenseVector___init__ = *((PyWrapperDescrObject *)wrapper)->d_base;
+      __pyx_wrapperbase_4cdec_5_cdec_11DenseVector___init__.doc = __pyx_doc_4cdec_5_cdec_11DenseVector___init__;
+      ((PyWrapperDescrObject *)wrapper)->d_base = &__pyx_wrapperbase_4cdec_5_cdec_11DenseVector___init__;
     }
   }
   #endif
-  if (__Pyx_SetAttrString(__pyx_m, "MRule", (PyObject *)&__pyx_type_5_cdec_MRule) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 177; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec_MRule = &__pyx_type_5_cdec_MRule;
-  if (PyType_Ready(&__pyx_type_5_cdec_SegmentEvaluator) < 0) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 100; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (__Pyx_SetAttrString(__pyx_m, "SegmentEvaluator", (PyObject *)&__pyx_type_5_cdec_SegmentEvaluator) < 0) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 100; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec_SegmentEvaluator = &__pyx_type_5_cdec_SegmentEvaluator;
-  if (PyType_Ready(&__pyx_type_5_cdec___pyx_scope_struct_25_genexpr) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 56; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec___pyx_scope_struct_25_genexpr = &__pyx_type_5_cdec___pyx_scope_struct_25_genexpr;
-  if (PyType_Ready(&__pyx_type_5_cdec___pyx_scope_struct_19_todot) < 0) {__pyx_filename = __pyx_f[4]; __pyx_lineno = 61; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec___pyx_scope_struct_19_todot = &__pyx_type_5_cdec___pyx_scope_struct_19_todot;
-  if (PyType_Ready(&__pyx_type_5_cdec_Candidate) < 0) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 12; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (__Pyx_SetAttrString(__pyx_m, "Candidate", (PyObject *)&__pyx_type_5_cdec_Candidate) < 0) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 12; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec_Candidate = &__pyx_type_5_cdec_Candidate;
-  if (PyType_Ready(&__pyx_type_5_cdec___pyx_scope_struct_6_genexpr) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 173; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec___pyx_scope_struct_6_genexpr = &__pyx_type_5_cdec___pyx_scope_struct_6_genexpr;
-  if (PyType_Ready(&__pyx_type_5_cdec_NT) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 8; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetAttrString(__pyx_m, "DenseVector", (PyObject *)&__pyx_type_4cdec_5_cdec_DenseVector) < 0) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 3; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec_DenseVector = &__pyx_type_4cdec_5_cdec_DenseVector;
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec_SufficientStats) < 0) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 26; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetAttrString(__pyx_m, "SufficientStats", (PyObject *)&__pyx_type_4cdec_5_cdec_SufficientStats) < 0) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 26; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec_SufficientStats = &__pyx_type_4cdec_5_cdec_SufficientStats;
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec___pyx_scope_struct_21___iter__) < 0) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 44; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec___pyx_scope_struct_21___iter__ = &__pyx_type_4cdec_5_cdec___pyx_scope_struct_21___iter__;
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec_Metric) < 0) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 176; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetAttrString(__pyx_m, "Metric", (PyObject *)&__pyx_type_4cdec_5_cdec_Metric) < 0) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 176; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec_Metric = &__pyx_type_4cdec_5_cdec_Metric;
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec_Candidate) < 0) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 12; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetAttrString(__pyx_m, "Candidate", (PyObject *)&__pyx_type_4cdec_5_cdec_Candidate) < 0) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 12; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec_Candidate = &__pyx_type_4cdec_5_cdec_Candidate;
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec_SparseVector) < 0) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 48; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   #if CYTHON_COMPILING_IN_CPYTHON
   {
-    PyObject *wrapper = __Pyx_GetAttrString((PyObject *)&__pyx_type_5_cdec_NT, "__init__"); if (unlikely(!wrapper)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 8; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    PyObject *wrapper = __Pyx_GetAttrString((PyObject *)&__pyx_type_4cdec_5_cdec_SparseVector, "__init__"); if (unlikely(!wrapper)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 48; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     if (Py_TYPE(wrapper) == &PyWrapperDescr_Type) {
-      __pyx_wrapperbase_5_cdec_2NT___init__ = *((PyWrapperDescrObject *)wrapper)->d_base;
-      __pyx_wrapperbase_5_cdec_2NT___init__.doc = __pyx_doc_5_cdec_2NT___init__;
-      ((PyWrapperDescrObject *)wrapper)->d_base = &__pyx_wrapperbase_5_cdec_2NT___init__;
+      __pyx_wrapperbase_4cdec_5_cdec_12SparseVector___init__ = *((PyWrapperDescrObject *)wrapper)->d_base;
+      __pyx_wrapperbase_4cdec_5_cdec_12SparseVector___init__.doc = __pyx_doc_4cdec_5_cdec_12SparseVector___init__;
+      ((PyWrapperDescrObject *)wrapper)->d_base = &__pyx_wrapperbase_4cdec_5_cdec_12SparseVector___init__;
     }
   }
   #endif
-  if (__Pyx_SetAttrString(__pyx_m, "NT", (PyObject *)&__pyx_type_5_cdec_NT) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 8; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec_NT = &__pyx_type_5_cdec_NT;
-  __pyx_vtabptr_5_cdec_HypergraphEdge = &__pyx_vtable_5_cdec_HypergraphEdge;
-  __pyx_vtable_5_cdec_HypergraphEdge.init = (PyObject *(*)(struct __pyx_obj_5_cdec_HypergraphEdge *, Hypergraph *, unsigned int))__pyx_f_5_cdec_14HypergraphEdge_init;
-  if (PyType_Ready(&__pyx_type_5_cdec_HypergraphEdge) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 196; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (__Pyx_SetVtable(__pyx_type_5_cdec_HypergraphEdge.tp_dict, __pyx_vtabptr_5_cdec_HypergraphEdge) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 196; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (__Pyx_SetAttrString(__pyx_m, "HypergraphEdge", (PyObject *)&__pyx_type_5_cdec_HypergraphEdge) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 196; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec_HypergraphEdge = &__pyx_type_5_cdec_HypergraphEdge;
-  if (PyType_Ready(&__pyx_type_5_cdec___pyx_scope_struct_1___iter__) < 0) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 72; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec___pyx_scope_struct_1___iter__ = &__pyx_type_5_cdec___pyx_scope_struct_1___iter__;
-  if (PyType_Ready(&__pyx_type_5_cdec___pyx_scope_struct_16___get__) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 256; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec___pyx_scope_struct_16___get__ = &__pyx_type_5_cdec___pyx_scope_struct_16___get__;
-  if (PyType_Ready(&__pyx_type_5_cdec___pyx_scope_struct_4___get__) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 131; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec___pyx_scope_struct_4___get__ = &__pyx_type_5_cdec___pyx_scope_struct_4___get__;
-  if (PyType_Ready(&__pyx_type_5_cdec___pyx_scope_struct_18___iter__) < 0) {__pyx_filename = __pyx_f[4]; __pyx_lineno = 56; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec___pyx_scope_struct_18___iter__ = &__pyx_type_5_cdec___pyx_scope_struct_18___iter__;
-  if (PyType_Ready(&__pyx_type_5_cdec_Decoder) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 43; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetAttrString(__pyx_m, "SparseVector", (PyObject *)&__pyx_type_4cdec_5_cdec_SparseVector) < 0) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 48; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec_SparseVector = &__pyx_type_4cdec_5_cdec_SparseVector;
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec___pyx_scope_struct_15___get__) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 216; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec___pyx_scope_struct_15___get__ = &__pyx_type_4cdec_5_cdec___pyx_scope_struct_15___get__;
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec_NT) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 8; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   #if CYTHON_COMPILING_IN_CPYTHON
   {
-    PyObject *wrapper = __Pyx_GetAttrString((PyObject *)&__pyx_type_5_cdec_Decoder, "__init__"); if (unlikely(!wrapper)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 43; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    PyObject *wrapper = __Pyx_GetAttrString((PyObject *)&__pyx_type_4cdec_5_cdec_NT, "__init__"); if (unlikely(!wrapper)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 8; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     if (Py_TYPE(wrapper) == &PyWrapperDescr_Type) {
-      __pyx_wrapperbase_5_cdec_7Decoder___init__ = *((PyWrapperDescrObject *)wrapper)->d_base;
-      __pyx_wrapperbase_5_cdec_7Decoder___init__.doc = __pyx_doc_5_cdec_7Decoder___init__;
-      ((PyWrapperDescrObject *)wrapper)->d_base = &__pyx_wrapperbase_5_cdec_7Decoder___init__;
+      __pyx_wrapperbase_4cdec_5_cdec_2NT___init__ = *((PyWrapperDescrObject *)wrapper)->d_base;
+      __pyx_wrapperbase_4cdec_5_cdec_2NT___init__.doc = __pyx_doc_4cdec_5_cdec_2NT___init__;
+      ((PyWrapperDescrObject *)wrapper)->d_base = &__pyx_wrapperbase_4cdec_5_cdec_2NT___init__;
     }
   }
   #endif
-  if (__Pyx_SetAttrString(__pyx_m, "Decoder", (PyObject *)&__pyx_type_5_cdec_Decoder) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 43; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec_Decoder = &__pyx_type_5_cdec_Decoder;
-  __pyx_vtabptr_5_cdec_HypergraphNode = &__pyx_vtable_5_cdec_HypergraphNode;
-  __pyx_vtable_5_cdec_HypergraphNode.init = (PyObject *(*)(struct __pyx_obj_5_cdec_HypergraphNode *, Hypergraph *, unsigned int))__pyx_f_5_cdec_14HypergraphNode_init;
-  if (PyType_Ready(&__pyx_type_5_cdec_HypergraphNode) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 246; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (__Pyx_SetVtable(__pyx_type_5_cdec_HypergraphNode.tp_dict, __pyx_vtabptr_5_cdec_HypergraphNode) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 246; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (__Pyx_SetAttrString(__pyx_m, "HypergraphNode", (PyObject *)&__pyx_type_5_cdec_HypergraphNode) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 246; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec_HypergraphNode = &__pyx_type_5_cdec_HypergraphNode;
-  if (PyType_Ready(&__pyx_type_5_cdec_SparseVector) < 0) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 48; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetAttrString(__pyx_m, "NT", (PyObject *)&__pyx_type_4cdec_5_cdec_NT) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 8; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec_NT = &__pyx_type_4cdec_5_cdec_NT;
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec_Lattice) < 0) {__pyx_filename = __pyx_f[4]; __pyx_lineno = 3; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   #if CYTHON_COMPILING_IN_CPYTHON
   {
-    PyObject *wrapper = __Pyx_GetAttrString((PyObject *)&__pyx_type_5_cdec_SparseVector, "__init__"); if (unlikely(!wrapper)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 48; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    PyObject *wrapper = __Pyx_GetAttrString((PyObject *)&__pyx_type_4cdec_5_cdec_Lattice, "__init__"); if (unlikely(!wrapper)) {__pyx_filename = __pyx_f[4]; __pyx_lineno = 3; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     if (Py_TYPE(wrapper) == &PyWrapperDescr_Type) {
-      __pyx_wrapperbase_5_cdec_12SparseVector___init__ = *((PyWrapperDescrObject *)wrapper)->d_base;
-      __pyx_wrapperbase_5_cdec_12SparseVector___init__.doc = __pyx_doc_5_cdec_12SparseVector___init__;
-      ((PyWrapperDescrObject *)wrapper)->d_base = &__pyx_wrapperbase_5_cdec_12SparseVector___init__;
+      __pyx_wrapperbase_4cdec_5_cdec_7Lattice_2__init__ = *((PyWrapperDescrObject *)wrapper)->d_base;
+      __pyx_wrapperbase_4cdec_5_cdec_7Lattice_2__init__.doc = __pyx_doc_4cdec_5_cdec_7Lattice_2__init__;
+      ((PyWrapperDescrObject *)wrapper)->d_base = &__pyx_wrapperbase_4cdec_5_cdec_7Lattice_2__init__;
     }
   }
   #endif
-  if (__Pyx_SetAttrString(__pyx_m, "SparseVector", (PyObject *)&__pyx_type_5_cdec_SparseVector) < 0) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 48; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec_SparseVector = &__pyx_type_5_cdec_SparseVector;
-  if (PyType_Ready(&__pyx_type_5_cdec___pyx_scope_struct_17___get__) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 262; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec___pyx_scope_struct_17___get__ = &__pyx_type_5_cdec___pyx_scope_struct_17___get__;
-  if (PyType_Ready(&__pyx_type_5_cdec___pyx_scope_struct____iter__) < 0) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 32; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec___pyx_scope_struct____iter__ = &__pyx_type_5_cdec___pyx_scope_struct____iter__;
-  if (PyType_Ready(&__pyx_type_5_cdec___pyx_scope_struct_21___iter__) < 0) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 44; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec___pyx_scope_struct_21___iter__ = &__pyx_type_5_cdec___pyx_scope_struct_21___iter__;
-  if (PyType_Ready(&__pyx_type_5_cdec_DenseVector) < 0) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 3; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetAttrString(__pyx_m, "Lattice", (PyObject *)&__pyx_type_4cdec_5_cdec_Lattice) < 0) {__pyx_filename = __pyx_f[4]; __pyx_lineno = 3; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec_Lattice = &__pyx_type_4cdec_5_cdec_Lattice;
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec___pyx_scope_struct_23__make_config) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 32; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec___pyx_scope_struct_23__make_config = &__pyx_type_4cdec_5_cdec___pyx_scope_struct_23__make_config;
+  __pyx_vtabptr_4cdec_5_cdec_HypergraphEdge = &__pyx_vtable_4cdec_5_cdec_HypergraphEdge;
+  __pyx_vtable_4cdec_5_cdec_HypergraphEdge.init = (PyObject *(*)(struct __pyx_obj_4cdec_5_cdec_HypergraphEdge *, Hypergraph *, unsigned int))__pyx_f_4cdec_5_cdec_14HypergraphEdge_init;
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec_HypergraphEdge) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 196; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetVtable(__pyx_type_4cdec_5_cdec_HypergraphEdge.tp_dict, __pyx_vtabptr_4cdec_5_cdec_HypergraphEdge) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 196; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetAttrString(__pyx_m, "HypergraphEdge", (PyObject *)&__pyx_type_4cdec_5_cdec_HypergraphEdge) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 196; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec_HypergraphEdge = &__pyx_type_4cdec_5_cdec_HypergraphEdge;
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec___pyx_scope_struct_2__phrase) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 5; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec___pyx_scope_struct_2__phrase = &__pyx_type_4cdec_5_cdec___pyx_scope_struct_2__phrase;
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec___pyx_scope_struct_13___get__) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 161; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec___pyx_scope_struct_13___get__ = &__pyx_type_4cdec_5_cdec___pyx_scope_struct_13___get__;
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec___pyx_scope_struct_20_lines) < 0) {__pyx_filename = __pyx_f[4]; __pyx_lineno = 63; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec___pyx_scope_struct_20_lines = &__pyx_type_4cdec_5_cdec___pyx_scope_struct_20_lines;
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec_Scorer) < 0) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 121; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetAttrString(__pyx_m, "Scorer", (PyObject *)&__pyx_type_4cdec_5_cdec_Scorer) < 0) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 121; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec_Scorer = &__pyx_type_4cdec_5_cdec_Scorer;
+  __pyx_vtabptr_4cdec_5_cdec_HypergraphNode = &__pyx_vtable_4cdec_5_cdec_HypergraphNode;
+  __pyx_vtable_4cdec_5_cdec_HypergraphNode.init = (PyObject *(*)(struct __pyx_obj_4cdec_5_cdec_HypergraphNode *, Hypergraph *, unsigned int))__pyx_f_4cdec_5_cdec_14HypergraphNode_init;
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec_HypergraphNode) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 246; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetVtable(__pyx_type_4cdec_5_cdec_HypergraphNode.tp_dict, __pyx_vtabptr_4cdec_5_cdec_HypergraphNode) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 246; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetAttrString(__pyx_m, "HypergraphNode", (PyObject *)&__pyx_type_4cdec_5_cdec_HypergraphNode) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 246; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec_HypergraphNode = &__pyx_type_4cdec_5_cdec_HypergraphNode;
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec___pyx_scope_struct_10_kbest_features) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 81; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec___pyx_scope_struct_10_kbest_features = &__pyx_type_4cdec_5_cdec___pyx_scope_struct_10_kbest_features;
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec_NTRef) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 21; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   #if CYTHON_COMPILING_IN_CPYTHON
   {
-    PyObject *wrapper = __Pyx_GetAttrString((PyObject *)&__pyx_type_5_cdec_DenseVector, "__init__"); if (unlikely(!wrapper)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 3; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    PyObject *wrapper = __Pyx_GetAttrString((PyObject *)&__pyx_type_4cdec_5_cdec_NTRef, "__init__"); if (unlikely(!wrapper)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 21; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     if (Py_TYPE(wrapper) == &PyWrapperDescr_Type) {
-      __pyx_wrapperbase_5_cdec_11DenseVector___init__ = *((PyWrapperDescrObject *)wrapper)->d_base;
-      __pyx_wrapperbase_5_cdec_11DenseVector___init__.doc = __pyx_doc_5_cdec_11DenseVector___init__;
-      ((PyWrapperDescrObject *)wrapper)->d_base = &__pyx_wrapperbase_5_cdec_11DenseVector___init__;
+      __pyx_wrapperbase_4cdec_5_cdec_5NTRef___init__ = *((PyWrapperDescrObject *)wrapper)->d_base;
+      __pyx_wrapperbase_4cdec_5_cdec_5NTRef___init__.doc = __pyx_doc_4cdec_5_cdec_5NTRef___init__;
+      ((PyWrapperDescrObject *)wrapper)->d_base = &__pyx_wrapperbase_4cdec_5_cdec_5NTRef___init__;
     }
   }
   #endif
-  if (__Pyx_SetAttrString(__pyx_m, "DenseVector", (PyObject *)&__pyx_type_5_cdec_DenseVector) < 0) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 3; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec_DenseVector = &__pyx_type_5_cdec_DenseVector;
-  if (PyType_Ready(&__pyx_type_5_cdec___pyx_scope_struct_7___iter__) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 199; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec___pyx_scope_struct_7___iter__ = &__pyx_type_5_cdec___pyx_scope_struct_7___iter__;
-  if (PyType_Ready(&__pyx_type_5_cdec_Metric) < 0) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 176; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (__Pyx_SetAttrString(__pyx_m, "Metric", (PyObject *)&__pyx_type_5_cdec_Metric) < 0) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 176; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec_Metric = &__pyx_type_5_cdec_Metric;
-  if (PyType_Ready(&__pyx_type_5_cdec_SufficientStats) < 0) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 26; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (__Pyx_SetAttrString(__pyx_m, "SufficientStats", (PyObject *)&__pyx_type_5_cdec_SufficientStats) < 0) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 26; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec_SufficientStats = &__pyx_type_5_cdec_SufficientStats;
-  if (PyType_Ready(&__pyx_type_5_cdec___pyx_scope_struct_8_kbest) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 49; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec___pyx_scope_struct_8_kbest = &__pyx_type_5_cdec___pyx_scope_struct_8_kbest;
-  if (PyType_Ready(&__pyx_type_5_cdec___pyx_scope_struct_10_kbest_features) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 81; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec___pyx_scope_struct_10_kbest_features = &__pyx_type_5_cdec___pyx_scope_struct_10_kbest_features;
-  if (PyType_Ready(&__pyx_type_5_cdec___pyx_scope_struct_15___get__) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 216; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec___pyx_scope_struct_15___get__ = &__pyx_type_5_cdec___pyx_scope_struct_15___get__;
-  if (PyType_Ready(&__pyx_type_5_cdec___pyx_scope_struct_5___str__) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 172; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec___pyx_scope_struct_5___str__ = &__pyx_type_5_cdec___pyx_scope_struct_5___str__;
-  if (PyType_Ready(&__pyx_type_5_cdec___pyx_scope_struct_9_kbest_trees) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 62; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec___pyx_scope_struct_9_kbest_trees = &__pyx_type_5_cdec___pyx_scope_struct_9_kbest_trees;
-  __pyx_vtabptr_5_cdec_Hypergraph = &__pyx_vtable_5_cdec_Hypergraph;
-  __pyx_vtable_5_cdec_Hypergraph._rng = (MT19937 *(*)(struct __pyx_obj_5_cdec_Hypergraph *))__pyx_f_5_cdec_10Hypergraph__rng;
-  if (PyType_Ready(&__pyx_type_5_cdec_Hypergraph) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 4; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (__Pyx_SetVtable(__pyx_type_5_cdec_Hypergraph.tp_dict, __pyx_vtabptr_5_cdec_Hypergraph) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 4; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (__Pyx_SetAttrString(__pyx_m, "Hypergraph", (PyObject *)&__pyx_type_5_cdec_Hypergraph) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 4; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec_Hypergraph = &__pyx_type_5_cdec_Hypergraph;
-  if (PyType_Ready(&__pyx_type_5_cdec_Lattice) < 0) {__pyx_filename = __pyx_f[4]; __pyx_lineno = 3; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetAttrString(__pyx_m, "NTRef", (PyObject *)&__pyx_type_4cdec_5_cdec_NTRef) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 21; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec_NTRef = &__pyx_type_4cdec_5_cdec_NTRef;
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec_Grammar) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 193; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetAttrString(__pyx_m, "Grammar", (PyObject *)&__pyx_type_4cdec_5_cdec_Grammar) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 193; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec_Grammar = &__pyx_type_4cdec_5_cdec_Grammar;
+  __pyx_vtabptr_4cdec_5_cdec_Hypergraph = &__pyx_vtable_4cdec_5_cdec_Hypergraph;
+  __pyx_vtable_4cdec_5_cdec_Hypergraph._rng = (MT19937 *(*)(struct __pyx_obj_4cdec_5_cdec_Hypergraph *))__pyx_f_4cdec_5_cdec_10Hypergraph__rng;
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec_Hypergraph) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 4; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetVtable(__pyx_type_4cdec_5_cdec_Hypergraph.tp_dict, __pyx_vtabptr_4cdec_5_cdec_Hypergraph) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 4; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetAttrString(__pyx_m, "Hypergraph", (PyObject *)&__pyx_type_4cdec_5_cdec_Hypergraph) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 4; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec_Hypergraph = &__pyx_type_4cdec_5_cdec_Hypergraph;
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec___pyx_scope_struct_24___init__) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 47; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec___pyx_scope_struct_24___init__ = &__pyx_type_4cdec_5_cdec___pyx_scope_struct_24___init__;
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec_CandidateSet) < 0) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 65; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetAttrString(__pyx_m, "CandidateSet", (PyObject *)&__pyx_type_4cdec_5_cdec_CandidateSet) < 0) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 65; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec_CandidateSet = &__pyx_type_4cdec_5_cdec_CandidateSet;
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 62; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees = &__pyx_type_4cdec_5_cdec___pyx_scope_struct_9_kbest_trees;
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec___pyx_scope_struct_19_todot) < 0) {__pyx_filename = __pyx_f[4]; __pyx_lineno = 61; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec___pyx_scope_struct_19_todot = &__pyx_type_4cdec_5_cdec___pyx_scope_struct_19_todot;
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec___pyx_scope_struct_5___str__) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 172; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec___pyx_scope_struct_5___str__ = &__pyx_type_4cdec_5_cdec___pyx_scope_struct_5___str__;
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec_SegmentEvaluator) < 0) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 100; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetAttrString(__pyx_m, "SegmentEvaluator", (PyObject *)&__pyx_type_4cdec_5_cdec_SegmentEvaluator) < 0) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 100; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec_SegmentEvaluator = &__pyx_type_4cdec_5_cdec_SegmentEvaluator;
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec___pyx_scope_struct_16___get__) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 256; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec___pyx_scope_struct_16___get__ = &__pyx_type_4cdec_5_cdec___pyx_scope_struct_16___get__;
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec___pyx_scope_struct_25_genexpr) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 56; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec___pyx_scope_struct_25_genexpr = &__pyx_type_4cdec_5_cdec___pyx_scope_struct_25_genexpr;
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec___pyx_scope_struct_3_genexpr) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 6; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec___pyx_scope_struct_3_genexpr = &__pyx_type_4cdec_5_cdec___pyx_scope_struct_3_genexpr;
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec___pyx_scope_struct_11_sample) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 97; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec___pyx_scope_struct_11_sample = &__pyx_type_4cdec_5_cdec___pyx_scope_struct_11_sample;
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec___pyx_scope_struct_8_kbest) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 49; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec___pyx_scope_struct_8_kbest = &__pyx_type_4cdec_5_cdec___pyx_scope_struct_8_kbest;
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec___pyx_scope_struct_14___get__) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 167; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec___pyx_scope_struct_14___get__ = &__pyx_type_4cdec_5_cdec___pyx_scope_struct_14___get__;
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec___pyx_scope_struct_7___iter__) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 199; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec___pyx_scope_struct_7___iter__ = &__pyx_type_4cdec_5_cdec___pyx_scope_struct_7___iter__;
+  __pyx_type_4cdec_5_cdec_TextGrammar.tp_base = __pyx_ptype_4cdec_5_cdec_Grammar;
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec_TextGrammar) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 217; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   #if CYTHON_COMPILING_IN_CPYTHON
   {
-    PyObject *wrapper = __Pyx_GetAttrString((PyObject *)&__pyx_type_5_cdec_Lattice, "__init__"); if (unlikely(!wrapper)) {__pyx_filename = __pyx_f[4]; __pyx_lineno = 3; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    PyObject *wrapper = __Pyx_GetAttrString((PyObject *)&__pyx_type_4cdec_5_cdec_TextGrammar, "__init__"); if (unlikely(!wrapper)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 217; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     if (Py_TYPE(wrapper) == &PyWrapperDescr_Type) {
-      __pyx_wrapperbase_5_cdec_7Lattice_2__init__ = *((PyWrapperDescrObject *)wrapper)->d_base;
-      __pyx_wrapperbase_5_cdec_7Lattice_2__init__.doc = __pyx_doc_5_cdec_7Lattice_2__init__;
-      ((PyWrapperDescrObject *)wrapper)->d_base = &__pyx_wrapperbase_5_cdec_7Lattice_2__init__;
+      __pyx_wrapperbase_4cdec_5_cdec_11TextGrammar___init__ = *((PyWrapperDescrObject *)wrapper)->d_base;
+      __pyx_wrapperbase_4cdec_5_cdec_11TextGrammar___init__.doc = __pyx_doc_4cdec_5_cdec_11TextGrammar___init__;
+      ((PyWrapperDescrObject *)wrapper)->d_base = &__pyx_wrapperbase_4cdec_5_cdec_11TextGrammar___init__;
     }
   }
   #endif
-  if (__Pyx_SetAttrString(__pyx_m, "Lattice", (PyObject *)&__pyx_type_5_cdec_Lattice) < 0) {__pyx_filename = __pyx_f[4]; __pyx_lineno = 3; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec_Lattice = &__pyx_type_5_cdec_Lattice;
-  if (PyType_Ready(&__pyx_type_5_cdec___pyx_scope_struct_11_sample) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 97; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec___pyx_scope_struct_11_sample = &__pyx_type_5_cdec___pyx_scope_struct_11_sample;
-  if (PyType_Ready(&__pyx_type_5_cdec___pyx_scope_struct_23__make_config) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 32; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec___pyx_scope_struct_23__make_config = &__pyx_type_5_cdec___pyx_scope_struct_23__make_config;
-  __pyx_type_5_cdec_TextGrammar.tp_base = __pyx_ptype_5_cdec_Grammar;
-  if (PyType_Ready(&__pyx_type_5_cdec_TextGrammar) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 217; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetAttrString(__pyx_m, "TextGrammar", (PyObject *)&__pyx_type_4cdec_5_cdec_TextGrammar) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 217; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec_TextGrammar = &__pyx_type_4cdec_5_cdec_TextGrammar;
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec_Decoder) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 43; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   #if CYTHON_COMPILING_IN_CPYTHON
   {
-    PyObject *wrapper = __Pyx_GetAttrString((PyObject *)&__pyx_type_5_cdec_TextGrammar, "__init__"); if (unlikely(!wrapper)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 217; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    PyObject *wrapper = __Pyx_GetAttrString((PyObject *)&__pyx_type_4cdec_5_cdec_Decoder, "__init__"); if (unlikely(!wrapper)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 43; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     if (Py_TYPE(wrapper) == &PyWrapperDescr_Type) {
-      __pyx_wrapperbase_5_cdec_11TextGrammar___init__ = *((PyWrapperDescrObject *)wrapper)->d_base;
-      __pyx_wrapperbase_5_cdec_11TextGrammar___init__.doc = __pyx_doc_5_cdec_11TextGrammar___init__;
-      ((PyWrapperDescrObject *)wrapper)->d_base = &__pyx_wrapperbase_5_cdec_11TextGrammar___init__;
+      __pyx_wrapperbase_4cdec_5_cdec_7Decoder___init__ = *((PyWrapperDescrObject *)wrapper)->d_base;
+      __pyx_wrapperbase_4cdec_5_cdec_7Decoder___init__.doc = __pyx_doc_4cdec_5_cdec_7Decoder___init__;
+      ((PyWrapperDescrObject *)wrapper)->d_base = &__pyx_wrapperbase_4cdec_5_cdec_7Decoder___init__;
     }
   }
   #endif
-  if (__Pyx_SetAttrString(__pyx_m, "TextGrammar", (PyObject *)&__pyx_type_5_cdec_TextGrammar) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 217; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec_TextGrammar = &__pyx_type_5_cdec_TextGrammar;
+  if (__Pyx_SetAttrString(__pyx_m, "Decoder", (PyObject *)&__pyx_type_4cdec_5_cdec_Decoder) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 43; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec_Decoder = &__pyx_type_4cdec_5_cdec_Decoder;
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec___pyx_scope_struct____iter__) < 0) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 32; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec___pyx_scope_struct____iter__ = &__pyx_type_4cdec_5_cdec___pyx_scope_struct____iter__;
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec___pyx_scope_struct_17___get__) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 262; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec___pyx_scope_struct_17___get__ = &__pyx_type_4cdec_5_cdec___pyx_scope_struct_17___get__;
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec___pyx_scope_struct_18___iter__) < 0) {__pyx_filename = __pyx_f[4]; __pyx_lineno = 56; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec___pyx_scope_struct_18___iter__ = &__pyx_type_4cdec_5_cdec___pyx_scope_struct_18___iter__;
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec___pyx_scope_struct_6_genexpr) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 173; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec___pyx_scope_struct_6_genexpr = &__pyx_type_4cdec_5_cdec___pyx_scope_struct_6_genexpr;
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec___pyx_scope_struct_12_sample_trees) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 108; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec___pyx_scope_struct_12_sample_trees = &__pyx_type_4cdec_5_cdec___pyx_scope_struct_12_sample_trees;
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec___pyx_scope_struct_4___get__) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 131; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec___pyx_scope_struct_4___get__ = &__pyx_type_4cdec_5_cdec___pyx_scope_struct_4___get__;
+  if (PyType_Ready(&__pyx_type_4cdec_5_cdec___pyx_scope_struct_1___iter__) < 0) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 72; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_5_cdec___pyx_scope_struct_1___iter__ = &__pyx_type_4cdec_5_cdec___pyx_scope_struct_1___iter__;
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@@ -26096,7 +26096,7 @@ PyMODINIT_FUNC PyInit__cdec(void)
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   /*--- Execution code ---*/
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":3
+  /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":3
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@@ -26105,85 +26105,85 @@ PyMODINIT_FUNC PyInit__cdec(void)
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-  __Pyx_INCREF(((PyObject *)__pyx_n_s_54));
-  PyList_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_n_s_54));
-  __Pyx_GIVEREF(((PyObject *)__pyx_n_s_54));
-  __pyx_t_3 = __Pyx_Import(((PyObject *)__pyx_n_s_53), ((PyObject *)__pyx_t_2), -1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 3; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_INCREF(((PyObject *)__pyx_n_s_55));
+  PyList_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_n_s_55));
+  __Pyx_GIVEREF(((PyObject *)__pyx_n_s_55));
+  __pyx_t_3 = __Pyx_Import(((PyObject *)__pyx_n_s_54), ((PyObject *)__pyx_t_2), -1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 3; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":5
+  /* "/home/mdenkows/cdec/python/cdec/grammar.pxi":5
  * import cdec.sa._sa as _sa
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  * def _phrase(phrase):             # <<<<<<<<<<<<<<
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-  __pyx_t_3 = PyCFunction_NewEx(&__pyx_mdef_5_cdec_1_phrase, NULL, __pyx_n_s___cdec); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 5; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyCFunction_NewEx(&__pyx_mdef_4cdec_5_cdec_1_phrase, NULL, __pyx_n_s_39); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 5; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":194
+  /* "/home/mdenkows/cdec/python/cdec/mteval.pxi":194
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  * BLEU = Scorer('IBM_BLEU')             # <<<<<<<<<<<<<<
  * QCRI = Scorer('QCRI_BLEU')
  * TER = Scorer('TER')
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+  __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_5_cdec_Scorer)), ((PyObject *)__pyx_k_tuple_59), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 194; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":195
+  /* "/home/mdenkows/cdec/python/cdec/mteval.pxi":195
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-  __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_5_cdec_Scorer)), ((PyObject *)__pyx_k_tuple_59), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 195; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_5_cdec_Scorer)), ((PyObject *)__pyx_k_tuple_60), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 195; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":196
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  * QCRI = Scorer('QCRI_BLEU')
  * TER = Scorer('TER')             # <<<<<<<<<<<<<<
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-  __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_5_cdec_Scorer)), ((PyObject *)__pyx_k_tuple_60), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 196; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_5_cdec_Scorer)), ((PyObject *)__pyx_k_tuple_61), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 196; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":197
+  /* "/home/mdenkows/cdec/python/cdec/mteval.pxi":197
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  * CER = Scorer('CER')             # <<<<<<<<<<<<<<
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-  __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_5_cdec_Scorer)), ((PyObject *)__pyx_k_tuple_61), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 197; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_5_cdec_Scorer)), ((PyObject *)__pyx_k_tuple_62), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 197; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":198
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  * SSK = Scorer('SSK')             # <<<<<<<<<<<<<<
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-  __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_5_cdec_Scorer)), ((PyObject *)__pyx_k_tuple_62), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 198; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cdec_5_cdec_Scorer)), ((PyObject *)__pyx_k_tuple_63), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 198; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-  /* "_cdec.pyx":22
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  * include "mteval.pxi"
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@@ -26192,7 +26192,7 @@ PyMODINIT_FUNC PyInit__cdec(void)
  */
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-  /* "_cdec.pyx":23
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@@ -26201,7 +26201,7 @@ PyMODINIT_FUNC PyInit__cdec(void)
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-  /* "_cdec.pyx":25
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-  /* "_cdec.pyx":26
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  * class InvalidConfig(Exception): pass
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+  __pyx_t_2 = __Pyx_CreateClass(((PyObject *)__pyx_t_4), ((PyObject *)__pyx_t_3), __pyx_n_s__ParseFailed, __pyx_n_s__ParseFailed, __pyx_n_s_39); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 26; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-  /* "_cdec.pyx":28
+  /* "cdec/_cdec.pyx":28
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+  __pyx_t_3 = PyCFunction_NewEx(&__pyx_mdef_4cdec_5_cdec_3set_silent, NULL, __pyx_n_s_39); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 28; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "_cdec.pyx":32
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+  __pyx_t_3 = PyCFunction_NewEx(&__pyx_mdef_4cdec_5_cdec_5_make_config, NULL, __pyx_n_s_39); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 32; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-  /* "_cdec.pyx":1
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