random sampling trees fix

2 files changed, 2180 insertions, 2465 deletions

diff --git a/decoder/hg_sampler.cc b/decoder/hg_sampler.cc
index c4d3dede..8e520871 100644
--- a/decoder/hg_sampler.cc
+++ b/decoder/hg_sampler.cc
@@ -122,7 +122,7 @@ void HypergraphSampler::sample_trees(const Hypergraph& hg,
     }
     vector<WordID> tmp;
     Viterbi(hg, &tmp, ETreeTraversal(), SampledDerivationWeightFunction(sampled_edges));
-    (*trees)[n] = TD::GetString(tmp);
+    (*trees)[i] = TD::GetString(tmp);
   }
 }
 
diff --git a/python/src/_cdec.cpp b/python/src/_cdec.cpp
index dcd33448..4b02edd5 100644
--- a/python/src/_cdec.cpp
+++ b/python/src/_cdec.cpp
@@ -1,4 +1,4 @@
-/* Generated by Cython 0.17.beta1 on Sun Jul 29 23:00:27 2012 */
+/* Generated by Cython 0.16 on Tue Aug  7 23:28:20 2012 */
 
 #define PY_SSIZE_T_CLEAN
 #include "Python.h"
@@ -47,6 +47,12 @@
 #define CYTHON_COMPILING_IN_CPYTHON 1
 #endif
 
+#if CYTHON_COMPILING_IN_PYPY
+  #define __Pyx_PyCFunction_Call PyObject_Call
+#else
+  #define __Pyx_PyCFunction_Call PyCFunction_Call
+#endif
+
 #if PY_VERSION_HEX < 0x02050000
   typedef int Py_ssize_t;
   #define PY_SSIZE_T_MAX INT_MAX
@@ -54,11 +60,8 @@
   #define PY_FORMAT_SIZE_T ""
   #define PyInt_FromSsize_t(z) PyInt_FromLong(z)
   #define PyInt_AsSsize_t(o)   __Pyx_PyInt_AsInt(o)
-  #define PyNumber_Index(o)    ((PyNumber_Check(o) && !PyFloat_Check(o)) ? PyNumber_Int(o) : \
-                                (PyErr_Format(PyExc_TypeError, \
-                                              "expected index value, got %.200s", Py_TYPE(o)->tp_name), \
-                                 (PyObject*)0))
-  #define PyIndex_Check(o)     (PyNumber_Check(o) && !PyFloat_Check(o) && !PyComplex_Check(o))
+  #define PyNumber_Index(o)    PyNumber_Int(o)
+  #define PyIndex_Check(o)     PyNumber_Check(o)
   #define PyErr_WarnEx(category, message, stacklevel) PyErr_Warn(category, message)
   #define __PYX_BUILD_PY_SSIZE_T "i"
 #else
@@ -127,20 +130,14 @@
 #endif
 
 
-#if PY_VERSION_HEX > 0x03030000 && defined(PyUnicode_KIND)
+#if PY_VERSION_HEX > 0x03030000 && defined(PyUnicode_GET_LENGTH)
   #define CYTHON_PEP393_ENABLED 1
-  #define __Pyx_PyUnicode_READY(op)       (likely(PyUnicode_IS_READY(op)) ? \
-                                              0 : _PyUnicode_Ready((PyObject *)(op)))
-  #define __Pyx_PyUnicode_GET_LENGTH(u)   PyUnicode_GET_LENGTH(u)
+  #define __Pyx_PyUnicode_GET_LENGTH(u) PyUnicode_GET_LENGTH(u)
   #define __Pyx_PyUnicode_READ_CHAR(u, i) PyUnicode_READ_CHAR(u, i)
-  #define __Pyx_PyUnicode_READ(k, d, i)   PyUnicode_READ(k, d, i)
 #else
   #define CYTHON_PEP393_ENABLED 0
-  #define __Pyx_PyUnicode_READY(op)       (0)
-  #define __Pyx_PyUnicode_GET_LENGTH(u)   PyUnicode_GET_SIZE(u)
+  #define __Pyx_PyUnicode_GET_LENGTH(u) PyUnicode_GET_SIZE(u)
   #define __Pyx_PyUnicode_READ_CHAR(u, i) ((Py_UCS4)(PyUnicode_AS_UNICODE(u)[i]))
-
-  #define __Pyx_PyUnicode_READ(k, d, i)   ((k=k), (Py_UCS4)(((Py_UNICODE*)d)[i]))
 #endif
 
 #if PY_MAJOR_VERSION >= 3
@@ -273,7 +270,6 @@
 #include <math.h>
 #define __PYX_HAVE___cdec
 #define __PYX_HAVE_API___cdec
-#include "string.h"
 #include <string>
 #include <vector>
 #include <utility>
@@ -361,11 +357,7 @@ static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject*);
 static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t);
 static CYTHON_INLINE size_t __Pyx_PyInt_AsSize_t(PyObject*);
 
-#if CYTHON_COMPILING_IN_CPYTHON
 #define __pyx_PyFloat_AsDouble(x) (PyFloat_CheckExact(x) ? PyFloat_AS_DOUBLE(x) : PyFloat_AsDouble(x))
-#else
-#define __pyx_PyFloat_AsDouble(x) PyFloat_AsDouble(x)
-#endif
 #define __pyx_PyFloat_AsFloat(x) ((float) __pyx_PyFloat_AsDouble(x))
 
 #ifdef __GNUC__
@@ -399,19 +391,18 @@ static const char *__pyx_f[] = {
   "hypergraph.pxi",
   "lattice.pxi",
   "mteval.pxi",
-  "stringsource",
   "cdec.sa._sa.pxd",
 };
 
 /*--- Type declarations ---*/
 struct __pyx_obj_5_cdec_Scorer;
 struct __pyx_obj_5_cdec_NTRef;
-struct __pyx_obj_5_cdec___pyx_scope_struct_23___cinit__;
-struct __pyx_obj_5_cdec___pyx_scope_struct_24_genexpr;
 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_18_todot;
 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__;
@@ -419,18 +410,21 @@ struct __pyx_obj_5_cdec_TRule;
 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_20___iter__;
+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_5_cdec___pyx_scope_struct_24___cinit__;
 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___iter__;
+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;
@@ -446,10 +440,8 @@ 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_12___get__;
-struct __pyx_obj_5_cdec___pyx_scope_struct_22__make_config;
+struct __pyx_obj_5_cdec___pyx_scope_struct_23__make_config;
 struct __pyx_obj_5_cdec_TextGrammar;
-struct __pyx_obj_5_cdec___pyx_scope_struct_19_lines;
 struct __pyx_opt_args_5_cdec_as_str;
 
 /* "_cdec.pyx":6
@@ -464,7 +456,7 @@ struct __pyx_opt_args_5_cdec_as_str {
   char *error_msg;
 };
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":117
+/* "/home/cdyer/cdec/python/src/mteval.pxi":117
  *         return CandidateSet(self)
  * 
  * cdef class Scorer:             # <<<<<<<<<<<<<<
@@ -478,7 +470,7 @@ struct __pyx_obj_5_cdec_Scorer {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":20
+/* "/home/cdyer/cdec/python/src/grammar.pxi":20
  *         return '[%s]' % self.cat
  * 
  * cdef class NTRef:             # <<<<<<<<<<<<<<
@@ -491,37 +483,7 @@ struct __pyx_obj_5_cdec_NTRef {
 };
 
 
-/* "_cdec.pyx":43
- *     cdef DenseVector weights
- * 
- *     def __cinit__(self, config_str=None, **config):             # <<<<<<<<<<<<<<
- *         """ Configuration can be given as a string:
- *                 Decoder('formalism = scfg')
- */
-struct __pyx_obj_5_cdec___pyx_scope_struct_23___cinit__ {
-  PyObject_HEAD
-  PyObject *__pyx_v_config;
-};
-
-
-/* "_cdec.pyx":54
- *                     '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___pyx_scope_struct_24_genexpr {
-  PyObject_HEAD
-  struct __pyx_obj_5_cdec___pyx_scope_struct_23___cinit__ *__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/cdec.sa._sa.pxd":1
+/* "/home/cdyer/cdec/python/src/cdec.sa._sa.pxd":1
  * cdef class Phrase:             # <<<<<<<<<<<<<<
  *     cdef int *syms
  *     cdef int n, *varpos, n_vars
@@ -536,7 +498,23 @@ struct __pyx_obj_4cdec_2sa_3_sa_Phrase {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":181
+/* "/home/cdyer/cdec/python/src/mteval.pxi":90
+ *         return candidate
+ * 
+ *     def __iter__(self):             # <<<<<<<<<<<<<<
+ *         cdef unsigned i
+ *         for i in range(len(self)):
+ */
+struct __pyx_obj_5_cdec___pyx_scope_struct_22___iter__ {
+  PyObject_HEAD
+  unsigned int __pyx_v_i;
+  struct __pyx_obj_5_cdec_CandidateSet *__pyx_v_self;
+  Py_ssize_t __pyx_t_0;
+  unsigned int __pyx_t_1;
+};
+
+
+/* "/home/cdyer/cdec/python/src/grammar.pxi":181
  *         super(MRule, self).__init__(lhs, rhs, e, scores, a)
  * 
  * cdef class Grammar:             # <<<<<<<<<<<<<<
@@ -549,36 +527,64 @@ struct __pyx_obj_5_cdec_Grammar {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":119
+/* "/home/cdyer/cdec/python/src/lattice.pxi":58
  * 
- *     property nodes:
- *         def __get__(self):             # <<<<<<<<<<<<<<
- *             cdef unsigned i
- *             for i in range(self.hg.nodes_.size()):
+ *     def todot(self):
+ *         def lines():             # <<<<<<<<<<<<<<
+ *             yield 'digraph lattice {'
+ *             yield 'rankdir = LR;'
  */
-struct __pyx_obj_5_cdec___pyx_scope_struct_13___get__ {
+struct __pyx_obj_5_cdec___pyx_scope_struct_20_lines {
   PyObject_HEAD
-  unsigned int __pyx_v_i;
+  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 *);
+};
+
+
+/* "/home/cdyer/cdec/python/src/hypergraph.pxi":88
+ *             del hypos
+ * 
+ *     def sample_trees(self, unsigned n):             # <<<<<<<<<<<<<<
+ *        cdef vector[string]* trees = new vector[string]()
+ *        if self.rng == NULL:
+ */
+struct __pyx_obj_5_cdec___pyx_scope_struct_12_sample_trees {
+  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;
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":57
- *             yield self[i]
+/* "/home/cdyer/cdec/python/src/hypergraph.pxi":125
  * 
- *     def todot(self):             # <<<<<<<<<<<<<<
- *         def lines():
- *             yield 'digraph lattice {'
+ *     property edges:
+ *         def __get__(self):             # <<<<<<<<<<<<<<
+ *             cdef unsigned i
+ *             for i in range(self.hg.edges_.size()):
  */
-struct __pyx_obj_5_cdec___pyx_scope_struct_18_todot {
+struct __pyx_obj_5_cdec___pyx_scope_struct_13___get__ {
   PyObject_HEAD
-  struct __pyx_obj_5_cdec_Lattice *__pyx_v_self;
+  unsigned int __pyx_v_i;
+  struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self;
+  size_t __pyx_t_0;
+  unsigned int __pyx_t_1;
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":5
+/* "/home/cdyer/cdec/python/src/grammar.pxi":5
  * import cdec.sa._sa as _sa
  * 
  * def _phrase(phrase):             # <<<<<<<<<<<<<<
@@ -591,7 +597,7 @@ struct __pyx_obj_5_cdec___pyx_scope_struct_2__phrase {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":65
+/* "/home/cdyer/cdec/python/src/mteval.pxi":65
  *         return result
  * 
  * cdef class CandidateSet:             # <<<<<<<<<<<<<<
@@ -606,23 +612,23 @@ struct __pyx_obj_5_cdec_CandidateSet {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":167
+/* "/home/cdyer/cdec/python/src/hypergraph.pxi":131
  * 
- *     property tail_nodes:
+ *     property nodes:
  *         def __get__(self):             # <<<<<<<<<<<<<<
  *             cdef unsigned i
- *             for i in range(self.edge.tail_nodes_.size()):
+ *             for i in range(self.hg.nodes_.size()):
  */
 struct __pyx_obj_5_cdec___pyx_scope_struct_14___get__ {
   PyObject_HEAD
   unsigned int __pyx_v_i;
-  struct __pyx_obj_5_cdec_HypergraphEdge *__pyx_v_self;
-  unsigned int __pyx_t_0;
+  struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self;
+  size_t __pyx_t_0;
   unsigned int __pyx_t_1;
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":50
+/* "/home/cdyer/cdec/python/src/grammar.pxi":50
  *     return TRule(lhs, f, e, scores, a)
  * 
  * cdef class TRule:             # <<<<<<<<<<<<<<
@@ -635,7 +641,7 @@ struct __pyx_obj_5_cdec_TRule {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/cdec.sa._sa.pxd":7
+/* "/home/cdyer/cdec/python/src/cdec.sa._sa.pxd":7
  *     cdef public int chunklen(self, int k)
  * 
  * cdef class Rule:             # <<<<<<<<<<<<<<
@@ -653,7 +659,7 @@ struct __pyx_obj_4cdec_2sa_3_sa_Rule {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":169
+/* "/home/cdyer/cdec/python/src/grammar.pxi":169
  *                 _phrase(self.f), _phrase(self.e), scores)
  * 
  * cdef class MRule(TRule):             # <<<<<<<<<<<<<<
@@ -665,7 +671,7 @@ struct __pyx_obj_5_cdec_MRule {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":98
+/* "/home/cdyer/cdec/python/src/mteval.pxi":98
  *         self.cs.AddKBestCandidates(hypergraph.hg[0], k, self.scorer.get())
  * 
  * cdef class SegmentEvaluator:             # <<<<<<<<<<<<<<
@@ -679,24 +685,37 @@ struct __pyx_obj_5_cdec_SegmentEvaluator {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":44
- *         return self.stats.size()
- * 
- *     def __iter__(self):             # <<<<<<<<<<<<<<
- *         for i in range(len(self)):
- *             yield self[i]
+/* "_cdec.pyx":54
+ *                     '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___pyx_scope_struct_20___iter__ {
+struct __pyx_obj_5_cdec___pyx_scope_struct_25_genexpr {
   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;
+  struct __pyx_obj_5_cdec___pyx_scope_struct_24___cinit__ *__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/mteval.pxi":12
+/* "/home/cdyer/cdec/python/src/lattice.pxi":57
+ *             yield self[i]
+ * 
+ *     def todot(self):             # <<<<<<<<<<<<<<
+ *         def lines():
+ *             yield 'digraph lattice {'
+ */
+struct __pyx_obj_5_cdec___pyx_scope_struct_19_todot {
+  PyObject_HEAD
+  struct __pyx_obj_5_cdec_Lattice *__pyx_v_self;
+};
+
+
+/* "/home/cdyer/cdec/python/src/mteval.pxi":12
  *         return stats
  * 
  * cdef class Candidate:             # <<<<<<<<<<<<<<
@@ -710,7 +729,7 @@ struct __pyx_obj_5_cdec_Candidate {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":165
+/* "/home/cdyer/cdec/python/src/grammar.pxi":165
  * 
  *     def __str__(self):
  *         scores = ' '.join('%s=%s' % feat for feat in self.scores)             # <<<<<<<<<<<<<<
@@ -727,7 +746,7 @@ struct __pyx_obj_5_cdec___pyx_scope_struct_6_genexpr {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":8
+/* "/home/cdyer/cdec/python/src/grammar.pxi":8
  *     return ' '.join(w.encode('utf8') if isinstance(w, unicode) else str(w) for w in phrase)
  * 
  * cdef class NT:             # <<<<<<<<<<<<<<
@@ -741,7 +760,20 @@ struct __pyx_obj_5_cdec_NT {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":147
+/* "_cdec.pyx":43
+ *     cdef DenseVector weights
+ * 
+ *     def __cinit__(self, config_str=None, **config):             # <<<<<<<<<<<<<<
+ *         """ Configuration can be given as a string:
+ *                 Decoder('formalism = scfg')
+ */
+struct __pyx_obj_5_cdec___pyx_scope_struct_24___cinit__ {
+  PyObject_HEAD
+  PyObject *__pyx_v_config;
+};
+
+
+/* "/home/cdyer/cdec/python/src/hypergraph.pxi":159
  *         return vector
  * 
  * cdef class HypergraphEdge:             # <<<<<<<<<<<<<<
@@ -757,7 +789,7 @@ struct __pyx_obj_5_cdec_HypergraphEdge {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":67
+/* "/home/cdyer/cdec/python/src/vectors.pxi":67
  *         self.vector.set_value(fid, value)
  * 
  *     def __iter__(self):             # <<<<<<<<<<<<<<
@@ -774,12 +806,12 @@ struct __pyx_obj_5_cdec___pyx_scope_struct_1___iter__ {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":209
+/* "/home/cdyer/cdec/python/src/hypergraph.pxi":215
  * 
- *     property out_edges:
+ *     property in_edges:
  *         def __get__(self):             # <<<<<<<<<<<<<<
  *             cdef unsigned i
- *             for i in range(self.node.out_edges_.size()):
+ *             for i in range(self.node.in_edges_.size()):
  */
 struct __pyx_obj_5_cdec___pyx_scope_struct_16___get__ {
   PyObject_HEAD
@@ -790,7 +822,7 @@ struct __pyx_obj_5_cdec___pyx_scope_struct_16___get__ {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":124
+/* "/home/cdyer/cdec/python/src/grammar.pxi":124
  * 
  *     property a:
  *         def __get__(self):             # <<<<<<<<<<<<<<
@@ -807,6 +839,22 @@ struct __pyx_obj_5_cdec___pyx_scope_struct_4___get__ {
 };
 
 
+/* "/home/cdyer/cdec/python/src/lattice.pxi":52
+ *         return hypergraph.AsPLF(self.lattice[0], True).c_str()
+ * 
+ *     def __iter__(self):             # <<<<<<<<<<<<<<
+ *         cdef unsigned i
+ *         for i in range(len(self)):
+ */
+struct __pyx_obj_5_cdec___pyx_scope_struct_18___iter__ {
+  PyObject_HEAD
+  unsigned int __pyx_v_i;
+  struct __pyx_obj_5_cdec_Lattice *__pyx_v_self;
+  Py_ssize_t __pyx_t_0;
+  unsigned int __pyx_t_1;
+};
+
+
 /* "_cdec.pyx":39
  *             yield key, bytes(value)
  * 
@@ -821,7 +869,7 @@ struct __pyx_obj_5_cdec_Decoder {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":193
+/* "/home/cdyer/cdec/python/src/hypergraph.pxi":205
  *         raise NotImplemented('comparison not implemented for HypergraphEdge')
  * 
  * cdef class HypergraphNode:             # <<<<<<<<<<<<<<
@@ -836,7 +884,7 @@ struct __pyx_obj_5_cdec_HypergraphNode {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":45
+/* "/home/cdyer/cdec/python/src/vectors.pxi":45
  *         return sparse
  * 
  * cdef class SparseVector:             # <<<<<<<<<<<<<<
@@ -849,23 +897,23 @@ struct __pyx_obj_5_cdec_SparseVector {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":52
- *         return hypergraph.AsPLF(self.lattice[0], True).c_str()
+/* "/home/cdyer/cdec/python/src/hypergraph.pxi":221
  * 
- *     def __iter__(self):             # <<<<<<<<<<<<<<
- *         cdef unsigned i
- *         for i in range(len(self)):
+ *     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_17___iter__ {
+struct __pyx_obj_5_cdec___pyx_scope_struct_17___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_5_cdec_HypergraphNode *__pyx_v_self;
+  size_t __pyx_t_0;
   unsigned int __pyx_t_1;
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":31
+/* "/home/cdyer/cdec/python/src/vectors.pxi":31
  *         self.vector[0][fid] = value
  * 
  *     def __iter__(self):             # <<<<<<<<<<<<<<
@@ -881,23 +929,24 @@ struct __pyx_obj_5_cdec___pyx_scope_struct____iter__ {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":90
- *         return candidate
+/* "/home/cdyer/cdec/python/src/mteval.pxi":44
+ *         return self.stats.size()
  * 
  *     def __iter__(self):             # <<<<<<<<<<<<<<
- *         cdef unsigned i
  *         for i in range(len(self)):
+ *             yield self[i]
  */
 struct __pyx_obj_5_cdec___pyx_scope_struct_21___iter__ {
   PyObject_HEAD
-  unsigned int __pyx_v_i;
-  struct __pyx_obj_5_cdec_CandidateSet *__pyx_v_self;
+  PyObject *__pyx_v_i;
+  struct __pyx_obj_5_cdec_SufficientStats *__pyx_v_self;
   Py_ssize_t __pyx_t_0;
-  unsigned int __pyx_t_1;
+  PyObject *__pyx_t_1;
+  PyObject *(*__pyx_t_2)(PyObject *);
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":3
+/* "/home/cdyer/cdec/python/src/vectors.pxi":3
  * from cython.operator cimport preincrement as pinc
  * 
  * cdef class DenseVector:             # <<<<<<<<<<<<<<
@@ -911,7 +960,7 @@ struct __pyx_obj_5_cdec_DenseVector {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":187
+/* "/home/cdyer/cdec/python/src/grammar.pxi":187
  *         del self.grammar
  * 
  *     def __iter__(self):             # <<<<<<<<<<<<<<
@@ -930,7 +979,7 @@ struct __pyx_obj_5_cdec___pyx_scope_struct_7___iter__ {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":173
+/* "/home/cdyer/cdec/python/src/mteval.pxi":173
  *         out.fields[i] = ss[i]
  * 
  * cdef class Metric:             # <<<<<<<<<<<<<<
@@ -943,7 +992,7 @@ struct __pyx_obj_5_cdec_Metric {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":26
+/* "/home/cdyer/cdec/python/src/mteval.pxi":26
  *             return fmap
  * 
  * cdef class SufficientStats:             # <<<<<<<<<<<<<<
@@ -957,7 +1006,7 @@ struct __pyx_obj_5_cdec_SufficientStats {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":31
+/* "/home/cdyer/cdec/python/src/hypergraph.pxi":31
  *         return unicode(hypergraph.JoshuaVisualizationString(self.hg[0]).c_str(), 'utf8')
  * 
  *     def kbest(self, size):             # <<<<<<<<<<<<<<
@@ -976,7 +1025,7 @@ struct __pyx_obj_5_cdec___pyx_scope_struct_8_kbest {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":61
+/* "/home/cdyer/cdec/python/src/hypergraph.pxi":61
  *             del e_derivations
  * 
  *     def kbest_features(self, size):             # <<<<<<<<<<<<<<
@@ -996,23 +1045,23 @@ struct __pyx_obj_5_cdec___pyx_scope_struct_10_kbest_features {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":203
+/* "/home/cdyer/cdec/python/src/hypergraph.pxi":179
  * 
- *     property in_edges:
+ *     property tail_nodes:
  *         def __get__(self):             # <<<<<<<<<<<<<<
  *             cdef unsigned i
- *             for i in range(self.node.in_edges_.size()):
+ *             for i in range(self.edge.tail_nodes_.size()):
  */
 struct __pyx_obj_5_cdec___pyx_scope_struct_15___get__ {
   PyObject_HEAD
   unsigned int __pyx_v_i;
-  struct __pyx_obj_5_cdec_HypergraphNode *__pyx_v_self;
-  size_t __pyx_t_0;
+  struct __pyx_obj_5_cdec_HypergraphEdge *__pyx_v_self;
+  unsigned int __pyx_t_0;
   unsigned int __pyx_t_1;
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":164
+/* "/home/cdyer/cdec/python/src/grammar.pxi":164
  *             self.rule.get().lhs_ = -TDConvert(<char *>lhs.cat)
  * 
  *     def __str__(self):             # <<<<<<<<<<<<<<
@@ -1025,7 +1074,7 @@ struct __pyx_obj_5_cdec___pyx_scope_struct_5___str__ {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":6
+/* "/home/cdyer/cdec/python/src/grammar.pxi":6
  * 
  * def _phrase(phrase):
  *     return ' '.join(w.encode('utf8') if isinstance(w, unicode) else str(w) for w in phrase)             # <<<<<<<<<<<<<<
@@ -1042,7 +1091,7 @@ struct __pyx_obj_5_cdec___pyx_scope_struct_3_genexpr {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":43
+/* "/home/cdyer/cdec/python/src/hypergraph.pxi":43
  *             del derivations
  * 
  *     def kbest_trees(self, size):             # <<<<<<<<<<<<<<
@@ -1065,7 +1114,7 @@ struct __pyx_obj_5_cdec___pyx_scope_struct_9_kbest_trees {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":4
+/* "/home/cdyer/cdec/python/src/hypergraph.pxi":4
  * cimport kbest
  * 
  * cdef class Hypergraph:             # <<<<<<<<<<<<<<
@@ -1079,7 +1128,7 @@ struct __pyx_obj_5_cdec_Hypergraph {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":3
+/* "/home/cdyer/cdec/python/src/lattice.pxi":3
  * cimport lattice
  * 
  * cdef class Lattice:             # <<<<<<<<<<<<<<
@@ -1092,7 +1141,7 @@ struct __pyx_obj_5_cdec_Lattice {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":76
+/* "/home/cdyer/cdec/python/src/hypergraph.pxi":76
  *             del derivations
  * 
  *     def sample(self, unsigned n):             # <<<<<<<<<<<<<<
@@ -1110,22 +1159,6 @@ struct __pyx_obj_5_cdec___pyx_scope_struct_11_sample {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":113
- * 
- *     property edges:
- *         def __get__(self):             # <<<<<<<<<<<<<<
- *             cdef unsigned i
- *             for i in range(self.hg.edges_.size()):
- */
-struct __pyx_obj_5_cdec___pyx_scope_struct_12___get__ {
-  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;
-};
-
-
 /* "_cdec.pyx":28
  * class ParseFailed(Exception): pass
  * 
@@ -1133,7 +1166,7 @@ struct __pyx_obj_5_cdec___pyx_scope_struct_12___get__ {
  *     for key, value in config.items():
  *         if isinstance(value, dict):
  */
-struct __pyx_obj_5_cdec___pyx_scope_struct_22__make_config {
+struct __pyx_obj_5_cdec___pyx_scope_struct_23__make_config {
   PyObject_HEAD
   PyObject *__pyx_v_config;
   PyObject *__pyx_v_info;
@@ -1149,7 +1182,7 @@ struct __pyx_obj_5_cdec___pyx_scope_struct_22__make_config {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":204
+/* "/home/cdyer/cdec/python/src/grammar.pxi":204
  *             self.grammar.get().SetGrammarName(string(<char *>name))
  * 
  * cdef class TextGrammar(Grammar):             # <<<<<<<<<<<<<<
@@ -1161,31 +1194,8 @@ struct __pyx_obj_5_cdec_TextGrammar {
 };
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":58
- * 
- *     def todot(self):
- *         def lines():             # <<<<<<<<<<<<<<
- *             yield 'digraph lattice {'
- *             yield 'rankdir = LR;'
- */
-struct __pyx_obj_5_cdec___pyx_scope_struct_19_lines {
-  PyObject_HEAD
-  struct __pyx_obj_5_cdec___pyx_scope_struct_18_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/cdec.sa._sa.pxd":1
+/* "/home/cdyer/cdec/python/src/cdec.sa._sa.pxd":1
  * cdef class Phrase:             # <<<<<<<<<<<<<<
  *     cdef int *syms
  *     cdef int n, *varpos, n_vars
@@ -1198,7 +1208,7 @@ struct __pyx_vtabstruct_4cdec_2sa_3_sa_Phrase {
 static struct __pyx_vtabstruct_4cdec_2sa_3_sa_Phrase *__pyx_vtabptr_4cdec_2sa_3_sa_Phrase;
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":193
+/* "/home/cdyer/cdec/python/src/hypergraph.pxi":205
  *         raise NotImplemented('comparison not implemented for HypergraphEdge')
  * 
  * cdef class HypergraphNode:             # <<<<<<<<<<<<<<
@@ -1212,7 +1222,7 @@ struct __pyx_vtabstruct_5_cdec_HypergraphNode {
 static struct __pyx_vtabstruct_5_cdec_HypergraphNode *__pyx_vtabptr_5_cdec_HypergraphNode;
 
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":147
+/* "/home/cdyer/cdec/python/src/hypergraph.pxi":159
  *         return vector
  * 
  * cdef class HypergraphEdge:             # <<<<<<<<<<<<<<
@@ -1308,28 +1318,13 @@ static int __Pyx_ParseOptionalKeywords(PyObject *kwds, PyObject **argnames[], \
     PyObject *kwds2, PyObject *values[], Py_ssize_t num_pos_args, \
     const char* function_name); /*proto*/
 
-#if CYTHON_COMPILING_IN_CPYTHON
-static CYTHON_INLINE int __Pyx_PyList_Append(PyObject* list, PyObject* x) {
-    PyListObject* L = (PyListObject*) list;
-    Py_ssize_t len = Py_SIZE(list);
-    if (likely(L->allocated > len)) {
-        Py_INCREF(x);
-        PyList_SET_ITEM(list, len, x);
-        Py_SIZE(list) = len+1;
-        return 0;
-    }
-    return PyList_Append(list, x);
-}
-#else
-#define __Pyx_PyList_Append(L,x) PyList_Append(L,x)
-#endif
-
 static CYTHON_INLINE PyObject* __Pyx_PyObject_Append(PyObject* L, PyObject* x) {
     if (likely(PyList_CheckExact(L))) {
-        if (unlikely(PyList_Append(L, x) < 0)) return NULL;
+        if (PyList_Append(L, x) < 0) return NULL;
         Py_INCREF(Py_None);
         return Py_None; /* this is just to have an accurate signature */
-    } else {
+    }
+    else {
         PyObject *r, *m;
         m = __Pyx_GetAttrString(L, "append");
         if (!m) return NULL;
@@ -1350,47 +1345,42 @@ static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Generic(PyObject *o, PyObject* j
                                                     __Pyx_GetItemInt_List_Fast(o, i) : \
                                                     __Pyx_GetItemInt_Generic(o, to_py_func(i)))
 static CYTHON_INLINE PyObject *__Pyx_GetItemInt_List_Fast(PyObject *o, Py_ssize_t i) {
-#if CYTHON_COMPILING_IN_CPYTHON
-    if (likely((0 <= i) & (i < PyList_GET_SIZE(o)))) {
-        PyObject *r = PyList_GET_ITEM(o, i);
-        Py_INCREF(r);
-        return r;
-    }
-    else if ((-PyList_GET_SIZE(o) <= i) & (i < 0)) {
-        PyObject *r = PyList_GET_ITEM(o, PyList_GET_SIZE(o) + i);
-        Py_INCREF(r);
-        return r;
+    if (likely(o != Py_None)) {
+        if (likely((0 <= i) & (i < PyList_GET_SIZE(o)))) {
+            PyObject *r = PyList_GET_ITEM(o, i);
+            Py_INCREF(r);
+            return r;
+        }
+        else if ((-PyList_GET_SIZE(o) <= i) & (i < 0)) {
+            PyObject *r = PyList_GET_ITEM(o, PyList_GET_SIZE(o) + i);
+            Py_INCREF(r);
+            return r;
+        }
     }
     return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i));
-#else
-    return PySequence_GetItem(o, i);
-#endif
 }
 #define __Pyx_GetItemInt_Tuple(o, i, size, to_py_func) (((size) <= sizeof(Py_ssize_t)) ? \
                                                     __Pyx_GetItemInt_Tuple_Fast(o, i) : \
                                                     __Pyx_GetItemInt_Generic(o, to_py_func(i)))
 static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Tuple_Fast(PyObject *o, Py_ssize_t i) {
-#if CYTHON_COMPILING_IN_CPYTHON
-    if (likely((0 <= i) & (i < PyTuple_GET_SIZE(o)))) {
-        PyObject *r = PyTuple_GET_ITEM(o, i);
-        Py_INCREF(r);
-        return r;
-    }
-    else if ((-PyTuple_GET_SIZE(o) <= i) & (i < 0)) {
-        PyObject *r = PyTuple_GET_ITEM(o, PyTuple_GET_SIZE(o) + i);
-        Py_INCREF(r);
-        return r;
+    if (likely(o != Py_None)) {
+        if (likely((0 <= i) & (i < PyTuple_GET_SIZE(o)))) {
+            PyObject *r = PyTuple_GET_ITEM(o, i);
+            Py_INCREF(r);
+            return r;
+        }
+        else if ((-PyTuple_GET_SIZE(o) <= i) & (i < 0)) {
+            PyObject *r = PyTuple_GET_ITEM(o, PyTuple_GET_SIZE(o) + i);
+            Py_INCREF(r);
+            return r;
+        }
     }
     return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i));
-#else
-    return PySequence_GetItem(o, i);
-#endif
 }
 #define __Pyx_GetItemInt(o, i, size, to_py_func) (((size) <= sizeof(Py_ssize_t)) ? \
                                                     __Pyx_GetItemInt_Fast(o, i) : \
                                                     __Pyx_GetItemInt_Generic(o, to_py_func(i)))
 static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Fast(PyObject *o, Py_ssize_t i) {
-#if CYTHON_COMPILING_IN_CPYTHON
     if (PyList_CheckExact(o)) {
         Py_ssize_t n = (likely(i >= 0)) ? i : i + PyList_GET_SIZE(o);
         if (likely((n >= 0) & (n < PyList_GET_SIZE(o)))) {
@@ -1406,30 +1396,19 @@ static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Fast(PyObject *o, Py_ssize_t i)
             Py_INCREF(r);
             return r;
         }
-    } else {  /* inlined PySequence_GetItem() */
+    }
+    else if (likely(i >= 0)) {
         PySequenceMethods *m = Py_TYPE(o)->tp_as_sequence;
         if (likely(m && m->sq_item)) {
-            if (unlikely(i < 0) && likely(m->sq_length)) {
-                Py_ssize_t l = m->sq_length(o);
-                if (unlikely(l < 0)) return NULL;
-                i += l;
-            }
             return m->sq_item(o, i);
         }
     }
-#else
-    if (PySequence_Check(o)) {
-        return PySequence_GetItem(o, i);
-    }
-#endif
     return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i));
 }
 
-static CYTHON_INLINE void __Pyx_RaiseTooManyValuesError(Py_ssize_t expected);
-
 static CYTHON_INLINE void __Pyx_RaiseNeedMoreValuesError(Py_ssize_t index);
 
-static CYTHON_INLINE int __Pyx_IterFinish(void); /*proto*/
+static CYTHON_INLINE void __Pyx_RaiseTooManyValuesError(Py_ssize_t expected);
 
 static int __Pyx_IternextUnpackEndCheck(PyObject *retval, Py_ssize_t expected); /*proto*/
 
@@ -1440,20 +1419,13 @@ static CYTHON_INLINE PyObject* __Pyx_PyBoolOrNull_FromLong(long b) {
     return unlikely(b < 0) ? NULL : __Pyx_PyBool_FromLong(b);
 }
 
-#define __Pyx_PyIter_Next(obj) __Pyx_PyIter_Next2(obj, NULL)
+#define __Pyx_PyIter_Next(obj) __Pyx_PyIter_Next2(obj, NULL);
 static CYTHON_INLINE PyObject *__Pyx_PyIter_Next2(PyObject *, PyObject *); /*proto*/
 
 static double __Pyx__PyObject_AsDouble(PyObject* obj); /* proto */
-#if CYTHON_COMPILING_IN_PYPY
-#define __Pyx_PyObject_AsDouble(obj) \
-(likely(PyFloat_CheckExact(obj)) ? PyFloat_AS_DOUBLE(obj) : \
- likely(PyInt_CheckExact(obj)) ? \
- PyFloat_AsDouble(obj) : __Pyx__PyObject_AsDouble(obj))
-#else
 #define __Pyx_PyObject_AsDouble(obj) \
 ((likely(PyFloat_CheckExact(obj))) ? \
  PyFloat_AS_DOUBLE(obj) : __Pyx__PyObject_AsDouble(obj))
-#endif
 
 static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb); /*proto*/
 
@@ -1467,45 +1439,6 @@ static PyObject *__Pyx_FindPy2Metaclass(PyObject *bases); /*proto*/
 static PyObject *__Pyx_CreateClass(PyObject *bases, PyObject *dict, PyObject *name,
                                    PyObject *modname); /*proto*/
 
-#ifndef __Pyx_CppExn2PyErr
-#include <new>
-#include <typeinfo>
-#include <stdexcept>
-#include <ios>
-static void __Pyx_CppExn2PyErr() {
-  try {
-    if (PyErr_Occurred())
-      ; // let the latest Python exn pass through and ignore the current one
-    else
-      throw;
-  } catch (const std::bad_alloc& exn) {
-    PyErr_SetString(PyExc_MemoryError, exn.what());
-  } catch (const std::bad_cast& exn) {
-    PyErr_SetString(PyExc_TypeError, exn.what());
-  } catch (const std::domain_error& exn) {
-    PyErr_SetString(PyExc_ValueError, exn.what());
-  } catch (const std::invalid_argument& exn) {
-    PyErr_SetString(PyExc_ValueError, exn.what());
-  } catch (const std::ios_base::failure& exn) {
-    PyErr_SetString(PyExc_IOError, exn.what());
-  } catch (const std::out_of_range& exn) {
-    PyErr_SetString(PyExc_IndexError, exn.what());
-  } catch (const std::overflow_error& exn) {
-    PyErr_SetString(PyExc_OverflowError, exn.what());
-  } catch (const std::range_error& exn) {
-    PyErr_SetString(PyExc_ArithmeticError, exn.what());
-  } catch (const std::underflow_error& exn) {
-    PyErr_SetString(PyExc_ArithmeticError, exn.what());
-  } catch (const std::exception& exn) {
-    PyErr_SetString(PyExc_RuntimeError, exn.what());
-  }
-  catch (...)
-  {
-    PyErr_SetString(PyExc_RuntimeError, "Unknown exception");
-  }
-}
-#endif
-
 static CYTHON_INLINE WordID __Pyx_PyInt_from_py_WordID(PyObject *);
 
 static PyObject* __Pyx_Globals(void); /*proto*/
@@ -1603,7 +1536,6 @@ static CYTHON_INLINE void __Pyx_ExceptionSwap(PyObject **type, PyObject **value,
 
 #define __Pyx_Generator_USED
 #include <structmember.h>
-#include <frameobject.h>
 typedef PyObject *(*__pyx_generator_body_t)(PyObject *, PyObject *);
 typedef struct {
     PyObject_HEAD
@@ -1616,17 +1548,10 @@ typedef struct {
     PyObject *exc_traceback;
     PyObject *gi_weakreflist;
     PyObject *classobj;
-    PyObject *yieldfrom;
 } __pyx_GeneratorObject;
 static __pyx_GeneratorObject *__Pyx_Generator_New(__pyx_generator_body_t body,
                                                   PyObject *closure);
 static int __pyx_Generator_init(void);
-static int __Pyx_Generator_clear(PyObject* self);
-#if 1 || PY_VERSION_HEX < 0x030300B0
-static int __Pyx_PyGen_FetchStopIterationValue(PyObject **pvalue);
-#else
-#define __Pyx_PyGen_FetchStopIterationValue(pvalue) PyGen_FetchStopIterationValue(pvalue)
-#endif
 
 static int __Pyx_check_binary_version(void);
 
@@ -1668,8 +1593,6 @@ static void __Pyx_AddTraceback(const char *funcname, int c_line,
 static int __Pyx_InitStrings(__Pyx_StringTabEntry *t); /*proto*/
 
 
-/* Module declarations from 'libc.string' */
-
 /* Module declarations from 'libcpp.string' */
 
 /* Module declarations from 'libcpp.vector' */
@@ -1732,25 +1655,25 @@ static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_8_kbest = 0;
 static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_9_kbest_trees = 0;
 static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_10_kbest_features = 0;
 static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_11_sample = 0;
-static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_12___get__ = 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_14___get__ = 0;
 static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_15___get__ = 0;
 static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_16___get__ = 0;
-static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_17___iter__ = 0;
-static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_18_todot = 0;
-static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_19_lines = 0;
-static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_20___iter__ = 0;
+static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_17___get__ = 0;
+static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_18___iter__ = 0;
+static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_19_todot = 0;
+static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_20_lines = 0;
 static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_21___iter__ = 0;
-static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_22__make_config = 0;
-static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_23___cinit__ = 0;
-static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_24_genexpr = 0;
+static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_22___iter__ = 0;
+static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_23__make_config = 0;
+static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_24___cinit__ = 0;
+static PyTypeObject *__pyx_ptype_5_cdec___pyx_scope_struct_25_genexpr = 0;
 static char *__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*/
-static PyObject *__pyx_convert_string_to_py_(const std::string &); /*proto*/
 #define __Pyx_MODULE_NAME "_cdec"
 int __pyx_module_is_main__cdec = 0;
 
@@ -1840,15 +1763,16 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_10kbest(struct __pyx_obj_5_cdec_Hy
 static PyObject *__pyx_pf_5_cdec_10Hypergraph_13kbest_trees(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self, PyObject *__pyx_v_size); /* proto */
 static PyObject *__pyx_pf_5_cdec_10Hypergraph_16kbest_features(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self, PyObject *__pyx_v_size); /* proto */
 static PyObject *__pyx_pf_5_cdec_10Hypergraph_19sample(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self, unsigned int __pyx_v_n); /* proto */
-static PyObject *__pyx_pf_5_cdec_10Hypergraph_22intersect(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self, struct __pyx_obj_5_cdec_Lattice *__pyx_v_lat); /* proto */
-static PyObject *__pyx_pf_5_cdec_10Hypergraph_24prune(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_26lattice(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_5_cdec_10Hypergraph_28reweight(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self, PyObject *__pyx_v_weights); /* proto */
+static PyObject *__pyx_pf_5_cdec_10Hypergraph_22sample_trees(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self, unsigned int __pyx_v_n); /* proto */
+static PyObject *__pyx_pf_5_cdec_10Hypergraph_25intersect(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self, struct __pyx_obj_5_cdec_Lattice *__pyx_v_lat); /* proto */
+static PyObject *__pyx_pf_5_cdec_10Hypergraph_27prune(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_29lattice(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_5_cdec_10Hypergraph_31reweight(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_30inside_outside(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_5_cdec_10Hypergraph_33inside_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 */
@@ -1935,7 +1859,7 @@ static char __pyx_k_27[] = "digraph lattice {";
   static char __pyx_k_32[] = "\\\"";
   static char __pyx_k_34[] = "%d [shape=doublecircle]";
 static char __pyx_k_35[] = "}";
-static char __pyx_k_38[] = "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi";
+static char __pyx_k_38[] = "/home/cdyer/cdec/python/src/lattice.pxi";
 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";
@@ -1947,8 +1871,8 @@ 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[] = "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi";
-static char __pyx_k_64[] = "/Users/vchahun/Sandbox/cdec/python/src/_cdec.pyx";
+static char __pyx_k_58[] = "/home/cdyer/cdec/python/src/grammar.pxi";
+static char __pyx_k_64[] = "/home/cdyer/cdec/python/src/_cdec.pyx";
 static char __pyx_k__a[] = "a";
 static char __pyx_k__e[] = "e";
 static char __pyx_k__f[] = "f";
@@ -2350,7 +2274,7 @@ static int __pyx_pw_5_cdec_11DenseVector_1__init__(PyObject *__pyx_v_self, PyObj
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":7
+/* "/home/cdyer/cdec/python/src/vectors.pxi":7
  *     cdef bint owned # if True, do not manage memory
  * 
  *     def __init__(self):             # <<<<<<<<<<<<<<
@@ -2363,7 +2287,7 @@ static int __pyx_pf_5_cdec_11DenseVector___init__(struct __pyx_obj_5_cdec_DenseV
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__init__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":8
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":8
  * 
  *     def __init__(self):
  *         self.vector = new vector[weight_t]()             # <<<<<<<<<<<<<<
@@ -2372,7 +2296,7 @@ static int __pyx_pf_5_cdec_11DenseVector___init__(struct __pyx_obj_5_cdec_DenseV
  */
   __pyx_v_self->vector = new std::vector<weight_t>();
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":9
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":9
  *     def __init__(self):
  *         self.vector = new vector[weight_t]()
  *         self.owned = False             # <<<<<<<<<<<<<<
@@ -2395,7 +2319,7 @@ static void __pyx_pw_5_cdec_11DenseVector_3__dealloc__(PyObject *__pyx_v_self) {
   __Pyx_RefNannyFinishContext();
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":11
+/* "/home/cdyer/cdec/python/src/vectors.pxi":11
  *         self.owned = False
  * 
  *     def __dealloc__(self):             # <<<<<<<<<<<<<<
@@ -2408,7 +2332,7 @@ static void __pyx_pf_5_cdec_11DenseVector_2__dealloc__(struct __pyx_obj_5_cdec_D
   int __pyx_t_1;
   __Pyx_RefNannySetupContext("__dealloc__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":12
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":12
  * 
  *     def __dealloc__(self):
  *         if not self.owned:             # <<<<<<<<<<<<<<
@@ -2418,7 +2342,7 @@ static void __pyx_pf_5_cdec_11DenseVector_2__dealloc__(struct __pyx_obj_5_cdec_D
   __pyx_t_1 = (!__pyx_v_self->owned);
   if (__pyx_t_1) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":13
+    /* "/home/cdyer/cdec/python/src/vectors.pxi":13
  *     def __dealloc__(self):
  *         if not self.owned:
  *             del self.vector             # <<<<<<<<<<<<<<
@@ -2444,7 +2368,7 @@ static Py_ssize_t __pyx_pw_5_cdec_11DenseVector_5__len__(PyObject *__pyx_v_self)
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":15
+/* "/home/cdyer/cdec/python/src/vectors.pxi":15
  *             del self.vector
  * 
  *     def __len__(self):             # <<<<<<<<<<<<<<
@@ -2457,7 +2381,7 @@ static Py_ssize_t __pyx_pf_5_cdec_11DenseVector_4__len__(struct __pyx_obj_5_cdec
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__len__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":16
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":16
  * 
  *     def __len__(self):
  *         return self.vector.size()             # <<<<<<<<<<<<<<
@@ -2494,7 +2418,7 @@ static PyObject *__pyx_pw_5_cdec_11DenseVector_7__getitem__(PyObject *__pyx_v_se
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":18
+/* "/home/cdyer/cdec/python/src/vectors.pxi":18
  *         return self.vector.size()
  * 
  *     def __getitem__(self, char* fname):             # <<<<<<<<<<<<<<
@@ -2514,7 +2438,7 @@ static PyObject *__pyx_pf_5_cdec_11DenseVector_6__getitem__(struct __pyx_obj_5_c
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__getitem__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":19
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":19
  * 
  *     def __getitem__(self, char* fname):
  *         cdef int fid = FDConvert(fname)             # <<<<<<<<<<<<<<
@@ -2523,7 +2447,7 @@ static PyObject *__pyx_pf_5_cdec_11DenseVector_6__getitem__(struct __pyx_obj_5_c
  */
   __pyx_v_fid = FD::Convert(__pyx_v_fname);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":20
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":20
  *     def __getitem__(self, char* fname):
  *         cdef int fid = FDConvert(fname)
  *         if 0 <= fid < self.vector.size():             # <<<<<<<<<<<<<<
@@ -2536,7 +2460,7 @@ static PyObject *__pyx_pf_5_cdec_11DenseVector_6__getitem__(struct __pyx_obj_5_c
   }
   if (__pyx_t_1) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":21
+    /* "/home/cdyer/cdec/python/src/vectors.pxi":21
  *         cdef int fid = FDConvert(fname)
  *         if 0 <= fid < self.vector.size():
  *             return self.vector[0][fid]             # <<<<<<<<<<<<<<
@@ -2553,7 +2477,7 @@ static PyObject *__pyx_pf_5_cdec_11DenseVector_6__getitem__(struct __pyx_obj_5_c
   }
   __pyx_L3:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":22
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":22
  *         if 0 <= fid < self.vector.size():
  *             return self.vector[0][fid]
  *         raise KeyError(fname)             # <<<<<<<<<<<<<<
@@ -2612,7 +2536,7 @@ static int __pyx_pw_5_cdec_11DenseVector_9__setitem__(PyObject *__pyx_v_self, Py
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":24
+/* "/home/cdyer/cdec/python/src/vectors.pxi":24
  *         raise KeyError(fname)
  * 
  *     def __setitem__(self, char* fname, float value):             # <<<<<<<<<<<<<<
@@ -2632,7 +2556,7 @@ static int __pyx_pf_5_cdec_11DenseVector_8__setitem__(struct __pyx_obj_5_cdec_De
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__setitem__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":25
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":25
  * 
  *     def __setitem__(self, char* fname, float value):
  *         cdef int fid = FDConvert(<char *>fname)             # <<<<<<<<<<<<<<
@@ -2641,7 +2565,7 @@ static int __pyx_pf_5_cdec_11DenseVector_8__setitem__(struct __pyx_obj_5_cdec_De
  */
   __pyx_v_fid = FD::Convert(((char *)__pyx_v_fname));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":26
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":26
  *     def __setitem__(self, char* fname, float value):
  *         cdef int fid = FDConvert(<char *>fname)
  *         if fid < 0: raise KeyError(fname)             # <<<<<<<<<<<<<<
@@ -2667,7 +2591,7 @@ static int __pyx_pf_5_cdec_11DenseVector_8__setitem__(struct __pyx_obj_5_cdec_De
   }
   __pyx_L3:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":27
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":27
  *         cdef int fid = FDConvert(<char *>fname)
  *         if fid < 0: raise KeyError(fname)
  *         if self.vector.size() <= fid:             # <<<<<<<<<<<<<<
@@ -2677,7 +2601,7 @@ static int __pyx_pf_5_cdec_11DenseVector_8__setitem__(struct __pyx_obj_5_cdec_De
   __pyx_t_1 = (__pyx_v_self->vector->size() <= __pyx_v_fid);
   if (__pyx_t_1) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":28
+    /* "/home/cdyer/cdec/python/src/vectors.pxi":28
  *         if fid < 0: raise KeyError(fname)
  *         if self.vector.size() <= fid:
  *             self.vector.resize(fid + 1)             # <<<<<<<<<<<<<<
@@ -2689,7 +2613,7 @@ static int __pyx_pf_5_cdec_11DenseVector_8__setitem__(struct __pyx_obj_5_cdec_De
   }
   __pyx_L4:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":29
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":29
  *         if self.vector.size() <= fid:
  *             self.vector.resize(fid + 1)
  *         self.vector[0][fid] = value             # <<<<<<<<<<<<<<
@@ -2722,7 +2646,7 @@ static PyObject *__pyx_pw_5_cdec_11DenseVector_11__iter__(PyObject *__pyx_v_self
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":31
+/* "/home/cdyer/cdec/python/src/vectors.pxi":31
  *         self.vector[0][fid] = value
  * 
  *     def __iter__(self):             # <<<<<<<<<<<<<<
@@ -2787,7 +2711,7 @@ static PyObject *__pyx_gb_5_cdec_11DenseVector_12generator(__pyx_GeneratorObject
   __pyx_L3_first_run:;
   if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 31; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":33
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":33
  *     def __iter__(self):
  *         cdef unsigned fid
  *         for fid in range(1, self.vector.size()):             # <<<<<<<<<<<<<<
@@ -2798,7 +2722,7 @@ static PyObject *__pyx_gb_5_cdec_11DenseVector_12generator(__pyx_GeneratorObject
   for (__pyx_t_2 = 1; __pyx_t_2 < __pyx_t_1; __pyx_t_2+=1) {
     __pyx_cur_scope->__pyx_v_fid = __pyx_t_2;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":34
+    /* "/home/cdyer/cdec/python/src/vectors.pxi":34
  *         cdef unsigned fid
  *         for fid in range(1, self.vector.size()):
  *             yield FDConvert(fid).c_str(), self.vector[0][fid]             # <<<<<<<<<<<<<<
@@ -2841,7 +2765,6 @@ static PyObject *__pyx_gb_5_cdec_11DenseVector_12generator(__pyx_GeneratorObject
   __pyx_L0:;
   __Pyx_XDECREF(__pyx_r);
   __pyx_generator->resume_label = -1;
-  __Pyx_Generator_clear((PyObject*)__pyx_generator);
   __Pyx_RefNannyFinishContext();
   return NULL;
 }
@@ -2862,7 +2785,7 @@ static PyObject *__pyx_pw_5_cdec_11DenseVector_14dot(PyObject *__pyx_v_self, PyO
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":36
+/* "/home/cdyer/cdec/python/src/vectors.pxi":36
  *             yield FDConvert(fid).c_str(), self.vector[0][fid]
  * 
  *     def dot(self, SparseVector other):             # <<<<<<<<<<<<<<
@@ -2881,7 +2804,7 @@ static PyObject *__pyx_pf_5_cdec_11DenseVector_13dot(struct __pyx_obj_5_cdec_Den
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("dot", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":37
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":37
  * 
  *     def dot(self, SparseVector other):
  *         return other.dot(self)             # <<<<<<<<<<<<<<
@@ -2929,7 +2852,7 @@ static PyObject *__pyx_pw_5_cdec_11DenseVector_16tosparse(PyObject *__pyx_v_self
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":39
+/* "/home/cdyer/cdec/python/src/vectors.pxi":39
  *         return other.dot(self)
  * 
  *     def tosparse(self):             # <<<<<<<<<<<<<<
@@ -2947,7 +2870,7 @@ static PyObject *__pyx_pf_5_cdec_11DenseVector_15tosparse(struct __pyx_obj_5_cde
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("tosparse", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":40
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":40
  * 
  *     def tosparse(self):
  *         cdef SparseVector sparse = SparseVector.__new__(SparseVector)             # <<<<<<<<<<<<<<
@@ -2960,7 +2883,7 @@ static PyObject *__pyx_pf_5_cdec_11DenseVector_15tosparse(struct __pyx_obj_5_cde
   __pyx_v_sparse = ((struct __pyx_obj_5_cdec_SparseVector *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":41
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":41
  *     def tosparse(self):
  *         cdef SparseVector sparse = SparseVector.__new__(SparseVector)
  *         sparse.vector = new FastSparseVector[weight_t]()             # <<<<<<<<<<<<<<
@@ -2969,7 +2892,7 @@ static PyObject *__pyx_pf_5_cdec_11DenseVector_15tosparse(struct __pyx_obj_5_cde
  */
   __pyx_v_sparse->vector = new FastSparseVector<weight_t>();
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":42
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":42
  *         cdef SparseVector sparse = SparseVector.__new__(SparseVector)
  *         sparse.vector = new FastSparseVector[weight_t]()
  *         InitSparseVector(self.vector[0], sparse.vector)             # <<<<<<<<<<<<<<
@@ -2978,7 +2901,7 @@ static PyObject *__pyx_pf_5_cdec_11DenseVector_15tosparse(struct __pyx_obj_5_cde
  */
   Weights::InitSparseVector((__pyx_v_self->vector[0]), __pyx_v_sparse->vector);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":43
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":43
  *         sparse.vector = new FastSparseVector[weight_t]()
  *         InitSparseVector(self.vector[0], sparse.vector)
  *         return sparse             # <<<<<<<<<<<<<<
@@ -3017,7 +2940,7 @@ static int __pyx_pw_5_cdec_12SparseVector_1__init__(PyObject *__pyx_v_self, PyOb
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":48
+/* "/home/cdyer/cdec/python/src/vectors.pxi":48
  *     cdef FastSparseVector[weight_t]* vector
  * 
  *     def __init__(self):             # <<<<<<<<<<<<<<
@@ -3030,7 +2953,7 @@ static int __pyx_pf_5_cdec_12SparseVector___init__(struct __pyx_obj_5_cdec_Spars
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__init__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":49
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":49
  * 
  *     def __init__(self):
  *         self.vector = new FastSparseVector[weight_t]()             # <<<<<<<<<<<<<<
@@ -3053,7 +2976,7 @@ static void __pyx_pw_5_cdec_12SparseVector_3__dealloc__(PyObject *__pyx_v_self)
   __Pyx_RefNannyFinishContext();
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":51
+/* "/home/cdyer/cdec/python/src/vectors.pxi":51
  *         self.vector = new FastSparseVector[weight_t]()
  * 
  *     def __dealloc__(self):             # <<<<<<<<<<<<<<
@@ -3065,7 +2988,7 @@ static void __pyx_pf_5_cdec_12SparseVector_2__dealloc__(CYTHON_UNUSED struct __p
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__dealloc__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":52
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":52
  * 
  *     def __dealloc__(self):
  *         del self.vector             # <<<<<<<<<<<<<<
@@ -3088,7 +3011,7 @@ static PyObject *__pyx_pw_5_cdec_12SparseVector_5copy(PyObject *__pyx_v_self, CY
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":54
+/* "/home/cdyer/cdec/python/src/vectors.pxi":54
  *         del self.vector
  * 
  *     def copy(self):             # <<<<<<<<<<<<<<
@@ -3105,7 +3028,7 @@ static PyObject *__pyx_pf_5_cdec_12SparseVector_4copy(struct __pyx_obj_5_cdec_Sp
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("copy", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":55
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":55
  * 
  *     def copy(self):
  *         return self * 1             # <<<<<<<<<<<<<<
@@ -3152,7 +3075,7 @@ static PyObject *__pyx_pw_5_cdec_12SparseVector_7__getitem__(PyObject *__pyx_v_s
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":57
+/* "/home/cdyer/cdec/python/src/vectors.pxi":57
  *         return self * 1
  * 
  *     def __getitem__(self, char* fname):             # <<<<<<<<<<<<<<
@@ -3172,7 +3095,7 @@ static PyObject *__pyx_pf_5_cdec_12SparseVector_6__getitem__(struct __pyx_obj_5_
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__getitem__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":58
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":58
  * 
  *     def __getitem__(self, char* fname):
  *         cdef int fid = FDConvert(fname)             # <<<<<<<<<<<<<<
@@ -3181,7 +3104,7 @@ static PyObject *__pyx_pf_5_cdec_12SparseVector_6__getitem__(struct __pyx_obj_5_
  */
   __pyx_v_fid = FD::Convert(__pyx_v_fname);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":59
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":59
  *     def __getitem__(self, char* fname):
  *         cdef int fid = FDConvert(fname)
  *         if fid < 0: raise KeyError(fname)             # <<<<<<<<<<<<<<
@@ -3207,7 +3130,7 @@ static PyObject *__pyx_pf_5_cdec_12SparseVector_6__getitem__(struct __pyx_obj_5_
   }
   __pyx_L3:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":60
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":60
  *         cdef int fid = FDConvert(fname)
  *         if fid < 0: raise KeyError(fname)
  *         return self.vector.value(fid)             # <<<<<<<<<<<<<<
@@ -3259,7 +3182,7 @@ static int __pyx_pw_5_cdec_12SparseVector_9__setitem__(PyObject *__pyx_v_self, P
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":62
+/* "/home/cdyer/cdec/python/src/vectors.pxi":62
  *         return self.vector.value(fid)
  * 
  *     def __setitem__(self, char* fname, float value):             # <<<<<<<<<<<<<<
@@ -3279,7 +3202,7 @@ static int __pyx_pf_5_cdec_12SparseVector_8__setitem__(struct __pyx_obj_5_cdec_S
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__setitem__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":63
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":63
  * 
  *     def __setitem__(self, char* fname, float value):
  *         cdef int fid = FDConvert(<char *>fname)             # <<<<<<<<<<<<<<
@@ -3288,7 +3211,7 @@ static int __pyx_pf_5_cdec_12SparseVector_8__setitem__(struct __pyx_obj_5_cdec_S
  */
   __pyx_v_fid = FD::Convert(((char *)__pyx_v_fname));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":64
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":64
  *     def __setitem__(self, char* fname, float value):
  *         cdef int fid = FDConvert(<char *>fname)
  *         if fid < 0: raise KeyError(fname)             # <<<<<<<<<<<<<<
@@ -3314,7 +3237,7 @@ static int __pyx_pf_5_cdec_12SparseVector_8__setitem__(struct __pyx_obj_5_cdec_S
   }
   __pyx_L3:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":65
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":65
  *         cdef int fid = FDConvert(<char *>fname)
  *         if fid < 0: raise KeyError(fname)
  *         self.vector.set_value(fid, value)             # <<<<<<<<<<<<<<
@@ -3347,7 +3270,7 @@ static PyObject *__pyx_pw_5_cdec_12SparseVector_11__iter__(PyObject *__pyx_v_sel
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":67
+/* "/home/cdyer/cdec/python/src/vectors.pxi":67
  *         self.vector.set_value(fid, value)
  * 
  *     def __iter__(self):             # <<<<<<<<<<<<<<
@@ -3412,7 +3335,7 @@ static PyObject *__pyx_gb_5_cdec_12SparseVector_12generator1(__pyx_GeneratorObje
   __pyx_L3_first_run:;
   if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 67; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":68
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":68
  * 
  *     def __iter__(self):
  *         cdef FastSparseVector[weight_t].const_iterator* it = new FastSparseVector[weight_t].const_iterator(self.vector[0], False)             # <<<<<<<<<<<<<<
@@ -3421,7 +3344,7 @@ static PyObject *__pyx_gb_5_cdec_12SparseVector_12generator1(__pyx_GeneratorObje
  */
   __pyx_cur_scope->__pyx_v_it = new FastSparseVector<weight_t>::const_iterator((__pyx_cur_scope->__pyx_v_self->vector[0]), 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":70
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":70
  *         cdef FastSparseVector[weight_t].const_iterator* it = new FastSparseVector[weight_t].const_iterator(self.vector[0], False)
  *         cdef unsigned i
  *         try:             # <<<<<<<<<<<<<<
@@ -3430,7 +3353,7 @@ static PyObject *__pyx_gb_5_cdec_12SparseVector_12generator1(__pyx_GeneratorObje
  */
   /*try:*/ {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":71
+    /* "/home/cdyer/cdec/python/src/vectors.pxi":71
  *         cdef unsigned i
  *         try:
  *             for i in range(self.vector.size()):             # <<<<<<<<<<<<<<
@@ -3441,7 +3364,7 @@ static PyObject *__pyx_gb_5_cdec_12SparseVector_12generator1(__pyx_GeneratorObje
     for (__pyx_t_2 = 0; __pyx_t_2 < __pyx_t_1; __pyx_t_2+=1) {
       __pyx_cur_scope->__pyx_v_i = __pyx_t_2;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":72
+      /* "/home/cdyer/cdec/python/src/vectors.pxi":72
  *         try:
  *             for i in range(self.vector.size()):
  *                 yield (FDConvert(it[0].ptr().first).c_str(), it[0].ptr().second)             # <<<<<<<<<<<<<<
@@ -3474,7 +3397,7 @@ static PyObject *__pyx_gb_5_cdec_12SparseVector_12generator1(__pyx_GeneratorObje
       __pyx_t_2 = __pyx_cur_scope->__pyx_t_1;
       if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 72; __pyx_clineno = __LINE__; goto __pyx_L5;}
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":73
+      /* "/home/cdyer/cdec/python/src/vectors.pxi":73
  *             for i in range(self.vector.size()):
  *                 yield (FDConvert(it[0].ptr().first).c_str(), it[0].ptr().second)
  *                 pinc(it[0]) # ++it             # <<<<<<<<<<<<<<
@@ -3485,7 +3408,7 @@ static PyObject *__pyx_gb_5_cdec_12SparseVector_12generator1(__pyx_GeneratorObje
     }
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":75
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":75
  *                 pinc(it[0]) # ++it
  *         finally:
  *             del it             # <<<<<<<<<<<<<<
@@ -3530,7 +3453,6 @@ static PyObject *__pyx_gb_5_cdec_12SparseVector_12generator1(__pyx_GeneratorObje
   __pyx_L0:;
   __Pyx_XDECREF(__pyx_r);
   __pyx_generator->resume_label = -1;
-  __Pyx_Generator_clear((PyObject*)__pyx_generator);
   __Pyx_RefNannyFinishContext();
   return NULL;
 }
@@ -3546,7 +3468,7 @@ static PyObject *__pyx_pw_5_cdec_12SparseVector_14dot(PyObject *__pyx_v_self, Py
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":77
+/* "/home/cdyer/cdec/python/src/vectors.pxi":77
  *             del it
  * 
  *     def dot(self, other):             # <<<<<<<<<<<<<<
@@ -3565,7 +3487,7 @@ static PyObject *__pyx_pf_5_cdec_12SparseVector_13dot(struct __pyx_obj_5_cdec_Sp
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("dot", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":78
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":78
  * 
  *     def dot(self, other):
  *         if isinstance(other, DenseVector):             # <<<<<<<<<<<<<<
@@ -3578,7 +3500,7 @@ static PyObject *__pyx_pf_5_cdec_12SparseVector_13dot(struct __pyx_obj_5_cdec_Sp
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   if (__pyx_t_2) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":79
+    /* "/home/cdyer/cdec/python/src/vectors.pxi":79
  *     def dot(self, other):
  *         if isinstance(other, DenseVector):
  *             return self.vector.dot((<DenseVector> other).vector[0])             # <<<<<<<<<<<<<<
@@ -3594,7 +3516,7 @@ 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":80
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":80
  *         if isinstance(other, DenseVector):
  *             return self.vector.dot((<DenseVector> other).vector[0])
  *         elif isinstance(other, SparseVector):             # <<<<<<<<<<<<<<
@@ -3607,7 +3529,7 @@ static PyObject *__pyx_pf_5_cdec_12SparseVector_13dot(struct __pyx_obj_5_cdec_Sp
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   if (__pyx_t_2) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":81
+    /* "/home/cdyer/cdec/python/src/vectors.pxi":81
  *             return self.vector.dot((<DenseVector> other).vector[0])
  *         elif isinstance(other, SparseVector):
  *             return self.vector.dot((<SparseVector> other).vector[0])             # <<<<<<<<<<<<<<
@@ -3624,7 +3546,7 @@ static PyObject *__pyx_pf_5_cdec_12SparseVector_13dot(struct __pyx_obj_5_cdec_Sp
   }
   __pyx_L3:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":82
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":82
  *         elif isinstance(other, SparseVector):
  *             return self.vector.dot((<SparseVector> other).vector[0])
  *         raise TypeError('cannot take the dot product of %s and SparseVector' % type(other))             # <<<<<<<<<<<<<<
@@ -3675,7 +3597,7 @@ static PyObject *__pyx_pw_5_cdec_12SparseVector_16__richcmp__(PyObject *__pyx_v_
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":84
+/* "/home/cdyer/cdec/python/src/vectors.pxi":84
  *         raise TypeError('cannot take the dot product of %s and SparseVector' % type(other))
  * 
  *     def __richcmp__(SparseVector x, SparseVector y, int op):             # <<<<<<<<<<<<<<
@@ -3693,7 +3615,7 @@ static PyObject *__pyx_pf_5_cdec_12SparseVector_15__richcmp__(struct __pyx_obj_5
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__richcmp__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":87
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":87
  *         if op == 2: # ==
  *             return x.vector[0] == y.vector[0]
  *         elif op == 3: # !=             # <<<<<<<<<<<<<<
@@ -3702,7 +3624,7 @@ static PyObject *__pyx_pf_5_cdec_12SparseVector_15__richcmp__(struct __pyx_obj_5
  */
   switch (__pyx_v_op) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":85
+    /* "/home/cdyer/cdec/python/src/vectors.pxi":85
  * 
  *     def __richcmp__(SparseVector x, SparseVector y, int op):
  *         if op == 2: # ==             # <<<<<<<<<<<<<<
@@ -3711,7 +3633,7 @@ static PyObject *__pyx_pf_5_cdec_12SparseVector_15__richcmp__(struct __pyx_obj_5
  */
     case 2:
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":86
+    /* "/home/cdyer/cdec/python/src/vectors.pxi":86
  *     def __richcmp__(SparseVector x, SparseVector y, int op):
  *         if op == 2: # ==
  *             return x.vector[0] == y.vector[0]             # <<<<<<<<<<<<<<
@@ -3726,7 +3648,7 @@ 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":87
+    /* "/home/cdyer/cdec/python/src/vectors.pxi":87
  *         if op == 2: # ==
  *             return x.vector[0] == y.vector[0]
  *         elif op == 3: # !=             # <<<<<<<<<<<<<<
@@ -3735,7 +3657,7 @@ static PyObject *__pyx_pf_5_cdec_12SparseVector_15__richcmp__(struct __pyx_obj_5
  */
     case 3:
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":88
+    /* "/home/cdyer/cdec/python/src/vectors.pxi":88
  *             return x.vector[0] == y.vector[0]
  *         elif op == 3: # !=
  *             return not (x == y)             # <<<<<<<<<<<<<<
@@ -3755,7 +3677,7 @@ static PyObject *__pyx_pf_5_cdec_12SparseVector_15__richcmp__(struct __pyx_obj_5
     break;
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":89
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":89
  *         elif op == 3: # !=
  *             return not (x == y)
  *         raise NotImplemented('comparison not implemented for SparseVector')             # <<<<<<<<<<<<<<
@@ -3791,7 +3713,7 @@ static Py_ssize_t __pyx_pw_5_cdec_12SparseVector_18__len__(PyObject *__pyx_v_sel
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":91
+/* "/home/cdyer/cdec/python/src/vectors.pxi":91
  *         raise NotImplemented('comparison not implemented for SparseVector')
  * 
  *     def __len__(self):             # <<<<<<<<<<<<<<
@@ -3804,7 +3726,7 @@ static Py_ssize_t __pyx_pf_5_cdec_12SparseVector_17__len__(struct __pyx_obj_5_cd
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__len__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":92
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":92
  * 
  *     def __len__(self):
  *         return self.vector.size()             # <<<<<<<<<<<<<<
@@ -3841,7 +3763,7 @@ static int __pyx_pw_5_cdec_12SparseVector_20__contains__(PyObject *__pyx_v_self,
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":94
+/* "/home/cdyer/cdec/python/src/vectors.pxi":94
  *         return self.vector.size()
  * 
  *     def __contains__(self, char* fname):             # <<<<<<<<<<<<<<
@@ -3854,7 +3776,7 @@ static int __pyx_pf_5_cdec_12SparseVector_19__contains__(struct __pyx_obj_5_cdec
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__contains__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":95
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":95
  * 
  *     def __contains__(self, char* fname):
  *         return self.vector.nonzero(FDConvert(fname))             # <<<<<<<<<<<<<<
@@ -3881,7 +3803,7 @@ static PyObject *__pyx_pw_5_cdec_12SparseVector_22__neg__(PyObject *__pyx_v_self
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":97
+/* "/home/cdyer/cdec/python/src/vectors.pxi":97
  *         return self.vector.nonzero(FDConvert(fname))
  * 
  *     def __neg__(self):             # <<<<<<<<<<<<<<
@@ -3899,7 +3821,7 @@ static PyObject *__pyx_pf_5_cdec_12SparseVector_21__neg__(struct __pyx_obj_5_cde
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__neg__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":98
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":98
  * 
  *     def __neg__(self):
  *         cdef SparseVector result = SparseVector.__new__(SparseVector)             # <<<<<<<<<<<<<<
@@ -3912,7 +3834,7 @@ static PyObject *__pyx_pf_5_cdec_12SparseVector_21__neg__(struct __pyx_obj_5_cde
   __pyx_v_result = ((struct __pyx_obj_5_cdec_SparseVector *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":99
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":99
  *     def __neg__(self):
  *         cdef SparseVector result = SparseVector.__new__(SparseVector)
  *         result.vector = new FastSparseVector[weight_t](self.vector[0])             # <<<<<<<<<<<<<<
@@ -3921,7 +3843,7 @@ static PyObject *__pyx_pf_5_cdec_12SparseVector_21__neg__(struct __pyx_obj_5_cde
  */
   __pyx_v_result->vector = new FastSparseVector<weight_t>((__pyx_v_self->vector[0]));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":100
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":100
  *         cdef SparseVector result = SparseVector.__new__(SparseVector)
  *         result.vector = new FastSparseVector[weight_t](self.vector[0])
  *         result.vector[0] *= -1.0             # <<<<<<<<<<<<<<
@@ -3930,7 +3852,7 @@ 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":101
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":101
  *         result.vector = new FastSparseVector[weight_t](self.vector[0])
  *         result.vector[0] *= -1.0
  *         return result             # <<<<<<<<<<<<<<
@@ -3971,7 +3893,7 @@ static PyObject *__pyx_pw_5_cdec_12SparseVector_24__iadd__(PyObject *__pyx_v_sel
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":103
+/* "/home/cdyer/cdec/python/src/vectors.pxi":103
  *         return result
  * 
  *     def __iadd__(SparseVector self, SparseVector other):             # <<<<<<<<<<<<<<
@@ -3984,7 +3906,7 @@ static PyObject *__pyx_pf_5_cdec_12SparseVector_23__iadd__(struct __pyx_obj_5_cd
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":104
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":105
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":109
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":109
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":112
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":113
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":122
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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":127
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":127
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+    /* "/home/cdyer/cdec/python/src/vectors.pxi":133
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":135
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":135
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":136
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":136
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":142
+    /* "/home/cdyer/cdec/python/src/vectors.pxi":142
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":144
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":144
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":145
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":145
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+static PyObject *__pyx_gb_5_cdec_7_phrase_2generator18(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
 
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+/* "/home/cdyer/cdec/python/src/grammar.pxi":6
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-static PyObject *__pyx_gb_5_cdec_7_phrase_2generator17(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
+static PyObject *__pyx_gb_5_cdec_7_phrase_2generator18(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
 {
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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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       Py_ssize_t kw_args;
@@ -4875,7 +4789,8 @@ static int __pyx_pw_5_cdec_2NT_1__init__(PyObject *__pyx_v_self, PyObject *__pyx
       kw_args = PyDict_Size(__pyx_kwds);
       switch (pos_args) {
         case  0:
-        if (likely((values[0] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__cat)) != 0)) kw_args--;
+        values[0] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__cat);
+        if (likely(values[0])) kw_args--;
         else goto __pyx_L5_argtuple_error;
         case  1:
         if (kw_args > 0) {
@@ -4886,6 +4801,10 @@ static int __pyx_pw_5_cdec_2NT_1__init__(PyObject *__pyx_v_self, PyObject *__pyx
       if (unlikely(kw_args > 0)) {
         if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "__init__") < 0)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 11; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
       }
+      if (values[1]) {
+      } else {
+        __pyx_v_ref = ((unsigned int)0);
+      }
     } else {
       switch (PyTuple_GET_SIZE(__pyx_args)) {
         case  2: values[1] = PyTuple_GET_ITEM(__pyx_args, 1);
@@ -4914,7 +4833,7 @@ static int __pyx_pw_5_cdec_2NT_1__init__(PyObject *__pyx_v_self, PyObject *__pyx
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":11
+/* "/home/cdyer/cdec/python/src/grammar.pxi":11
  *     cdef public bytes cat
  *     cdef public unsigned ref
  *     def __init__(self, char* cat, unsigned ref=0):             # <<<<<<<<<<<<<<
@@ -4931,7 +4850,7 @@ static int __pyx_pf_5_cdec_2NT___init__(struct __pyx_obj_5_cdec_NT *__pyx_v_self
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__init__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":12
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":12
  *     cdef public unsigned ref
  *     def __init__(self, char* cat, unsigned ref=0):
  *         self.cat = cat             # <<<<<<<<<<<<<<
@@ -4946,7 +4865,7 @@ static int __pyx_pf_5_cdec_2NT___init__(struct __pyx_obj_5_cdec_NT *__pyx_v_self
   __pyx_v_self->cat = __pyx_t_1;
   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":13
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":13
  *     def __init__(self, char* cat, unsigned ref=0):
  *         self.cat = cat
  *         self.ref = ref             # <<<<<<<<<<<<<<
@@ -4977,7 +4896,7 @@ static PyObject *__pyx_pw_5_cdec_2NT_3__str__(PyObject *__pyx_v_self) {
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":15
+/* "/home/cdyer/cdec/python/src/grammar.pxi":15
  *         self.ref = ref
  * 
  *     def __str__(self):             # <<<<<<<<<<<<<<
@@ -4996,7 +4915,7 @@ static PyObject *__pyx_pf_5_cdec_2NT_2__str__(struct __pyx_obj_5_cdec_NT *__pyx_
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__str__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":16
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":16
  * 
  *     def __str__(self):
  *         if self.ref > 0:             # <<<<<<<<<<<<<<
@@ -5006,7 +4925,7 @@ static PyObject *__pyx_pf_5_cdec_2NT_2__str__(struct __pyx_obj_5_cdec_NT *__pyx_
   __pyx_t_1 = (__pyx_v_self->ref > 0);
   if (__pyx_t_1) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":17
+    /* "/home/cdyer/cdec/python/src/grammar.pxi":17
  *     def __str__(self):
  *         if self.ref > 0:
  *             return '[%s,%d]' % (self.cat, self.ref)             # <<<<<<<<<<<<<<
@@ -5034,7 +4953,7 @@ static PyObject *__pyx_pf_5_cdec_2NT_2__str__(struct __pyx_obj_5_cdec_NT *__pyx_
   }
   __pyx_L3:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":18
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":18
  *         if self.ref > 0:
  *             return '[%s,%d]' % (self.cat, self.ref)
  *         return '[%s]' % self.cat             # <<<<<<<<<<<<<<
@@ -5072,7 +4991,7 @@ static PyObject *__pyx_pw_5_cdec_2NT_3cat_1__get__(PyObject *__pyx_v_self) {
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":9
+/* "/home/cdyer/cdec/python/src/grammar.pxi":9
  * 
  * cdef class NT:
  *     cdef public bytes cat             # <<<<<<<<<<<<<<
@@ -5168,7 +5087,7 @@ static PyObject *__pyx_pw_5_cdec_2NT_3ref_1__get__(PyObject *__pyx_v_self) {
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":10
+/* "/home/cdyer/cdec/python/src/grammar.pxi":10
  * cdef class NT:
  *     cdef public bytes cat
  *     cdef public unsigned ref             # <<<<<<<<<<<<<<
@@ -5239,11 +5158,11 @@ static int __pyx_pf_5_cdec_2NT_3ref_2__set__(struct __pyx_obj_5_cdec_NT *__pyx_v
 static int __pyx_pw_5_cdec_5NTRef_1__init__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
 static int __pyx_pw_5_cdec_5NTRef_1__init__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   unsigned int __pyx_v_ref;
+  static PyObject **__pyx_pyargnames[] = {&__pyx_n_s__ref,0};
   int __pyx_r;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__init__ (wrapper)", 0);
   {
-    static PyObject **__pyx_pyargnames[] = {&__pyx_n_s__ref,0};
     PyObject* values[1] = {0};
     if (unlikely(__pyx_kwds)) {
       Py_ssize_t kw_args;
@@ -5256,7 +5175,8 @@ static int __pyx_pw_5_cdec_5NTRef_1__init__(PyObject *__pyx_v_self, PyObject *__
       kw_args = PyDict_Size(__pyx_kwds);
       switch (pos_args) {
         case  0:
-        if (likely((values[0] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__ref)) != 0)) kw_args--;
+        values[0] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__ref);
+        if (likely(values[0])) kw_args--;
         else goto __pyx_L5_argtuple_error;
       }
       if (unlikely(kw_args > 0)) {
@@ -5282,7 +5202,7 @@ static int __pyx_pw_5_cdec_5NTRef_1__init__(PyObject *__pyx_v_self, PyObject *__
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":22
+/* "/home/cdyer/cdec/python/src/grammar.pxi":22
  * cdef class NTRef:
  *     cdef public unsigned ref
  *     def __init__(self, unsigned ref):             # <<<<<<<<<<<<<<
@@ -5295,7 +5215,7 @@ static int __pyx_pf_5_cdec_5NTRef___init__(struct __pyx_obj_5_cdec_NTRef *__pyx_
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__init__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":23
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":23
  *     cdef public unsigned ref
  *     def __init__(self, unsigned ref):
  *         self.ref = ref             # <<<<<<<<<<<<<<
@@ -5320,7 +5240,7 @@ static PyObject *__pyx_pw_5_cdec_5NTRef_3__str__(PyObject *__pyx_v_self) {
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":25
+/* "/home/cdyer/cdec/python/src/grammar.pxi":25
  *         self.ref = ref
  * 
  *     def __str__(self):             # <<<<<<<<<<<<<<
@@ -5338,7 +5258,7 @@ static PyObject *__pyx_pf_5_cdec_5NTRef_2__str__(struct __pyx_obj_5_cdec_NTRef *
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__str__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":26
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":26
  * 
  *     def __str__(self):
  *         return '[%d]' % self.ref             # <<<<<<<<<<<<<<
@@ -5379,7 +5299,7 @@ static PyObject *__pyx_pw_5_cdec_5NTRef_3ref_1__get__(PyObject *__pyx_v_self) {
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":21
+/* "/home/cdyer/cdec/python/src/grammar.pxi":21
  * 
  * cdef class NTRef:
  *     cdef public unsigned ref             # <<<<<<<<<<<<<<
@@ -5446,7 +5366,7 @@ static int __pyx_pf_5_cdec_5NTRef_3ref_2__set__(struct __pyx_obj_5_cdec_NTRef *_
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":28
+/* "/home/cdyer/cdec/python/src/grammar.pxi":28
  *         return '[%d]' % self.ref
  * 
  * cdef TRule convert_rule(_sa.Rule rule):             # <<<<<<<<<<<<<<
@@ -5482,7 +5402,7 @@ static struct __pyx_obj_5_cdec_TRule *__pyx_f_5_cdec_convert_rule(struct __pyx_o
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("convert_rule", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":30
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":30
  * cdef TRule convert_rule(_sa.Rule rule):
  *     cdef unsigned i
  *     cdef lhs = _sa.sym_tocat(rule.lhs)             # <<<<<<<<<<<<<<
@@ -5494,7 +5414,7 @@ static struct __pyx_obj_5_cdec_TRule *__pyx_f_5_cdec_convert_rule(struct __pyx_o
   __pyx_v_lhs = ((PyObject *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":31
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":31
  *     cdef unsigned i
  *     cdef lhs = _sa.sym_tocat(rule.lhs)
  *     cdef scores = {}             # <<<<<<<<<<<<<<
@@ -5506,7 +5426,7 @@ static struct __pyx_obj_5_cdec_TRule *__pyx_f_5_cdec_convert_rule(struct __pyx_o
   __pyx_v_scores = ((PyObject *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":32
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":32
  *     cdef lhs = _sa.sym_tocat(rule.lhs)
  *     cdef scores = {}
  *     for i in range(rule.n_scores):             # <<<<<<<<<<<<<<
@@ -5517,7 +5437,7 @@ static struct __pyx_obj_5_cdec_TRule *__pyx_f_5_cdec_convert_rule(struct __pyx_o
   for (__pyx_t_3 = 0; __pyx_t_3 < __pyx_t_2; __pyx_t_3+=1) {
     __pyx_v_i = __pyx_t_3;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":33
+    /* "/home/cdyer/cdec/python/src/grammar.pxi":33
  *     cdef scores = {}
  *     for i in range(rule.n_scores):
  *         scores['PhraseModel_'+str(i)] = rule.cscores[i]             # <<<<<<<<<<<<<<
@@ -5544,7 +5464,7 @@ static struct __pyx_obj_5_cdec_TRule *__pyx_f_5_cdec_convert_rule(struct __pyx_o
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":34
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":34
  *     for i in range(rule.n_scores):
  *         scores['PhraseModel_'+str(i)] = rule.cscores[i]
  *     f, e = [], []             # <<<<<<<<<<<<<<
@@ -5560,7 +5480,7 @@ static struct __pyx_obj_5_cdec_TRule *__pyx_f_5_cdec_convert_rule(struct __pyx_o
   __pyx_v_e = __pyx_t_5;
   __pyx_t_5 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":35
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":35
  *         scores['PhraseModel_'+str(i)] = rule.cscores[i]
  *     f, e = [], []
  *     cdef int* fsyms = rule.f.syms             # <<<<<<<<<<<<<<
@@ -5569,7 +5489,7 @@ static struct __pyx_obj_5_cdec_TRule *__pyx_f_5_cdec_convert_rule(struct __pyx_o
  */
   __pyx_v_fsyms = __pyx_v_rule->f->syms;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":36
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":36
  *     f, e = [], []
  *     cdef int* fsyms = rule.f.syms
  *     for i in range(rule.f.n):             # <<<<<<<<<<<<<<
@@ -5580,7 +5500,7 @@ static struct __pyx_obj_5_cdec_TRule *__pyx_f_5_cdec_convert_rule(struct __pyx_o
   for (__pyx_t_3 = 0; __pyx_t_3 < __pyx_t_2; __pyx_t_3+=1) {
     __pyx_v_i = __pyx_t_3;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":37
+    /* "/home/cdyer/cdec/python/src/grammar.pxi":37
  *     cdef int* fsyms = rule.f.syms
  *     for i in range(rule.f.n):
  *         if _sa.sym_isvar(fsyms[i]):             # <<<<<<<<<<<<<<
@@ -5590,7 +5510,7 @@ static struct __pyx_obj_5_cdec_TRule *__pyx_f_5_cdec_convert_rule(struct __pyx_o
     __pyx_t_6 = __pyx_f_4cdec_2sa_3_sa_sym_isvar((__pyx_v_fsyms[__pyx_v_i]));
     if (__pyx_t_6) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":38
+      /* "/home/cdyer/cdec/python/src/grammar.pxi":38
  *     for i in range(rule.f.n):
  *         if _sa.sym_isvar(fsyms[i]):
  *             f.append(NT(_sa.sym_tocat(fsyms[i])))             # <<<<<<<<<<<<<<
@@ -5613,7 +5533,7 @@ static struct __pyx_obj_5_cdec_TRule *__pyx_f_5_cdec_convert_rule(struct __pyx_o
     }
     /*else*/ {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":40
+      /* "/home/cdyer/cdec/python/src/grammar.pxi":40
  *             f.append(NT(_sa.sym_tocat(fsyms[i])))
  *         else:
  *             f.append(_sa.sym_tostring(fsyms[i]))             # <<<<<<<<<<<<<<
@@ -5628,7 +5548,7 @@ static struct __pyx_obj_5_cdec_TRule *__pyx_f_5_cdec_convert_rule(struct __pyx_o
     __pyx_L7:;
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":41
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":41
  *         else:
  *             f.append(_sa.sym_tostring(fsyms[i]))
  *     cdef int* esyms = rule.e.syms             # <<<<<<<<<<<<<<
@@ -5637,7 +5557,7 @@ static struct __pyx_obj_5_cdec_TRule *__pyx_f_5_cdec_convert_rule(struct __pyx_o
  */
   __pyx_v_esyms = __pyx_v_rule->e->syms;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":42
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":42
  *             f.append(_sa.sym_tostring(fsyms[i]))
  *     cdef int* esyms = rule.e.syms
  *     for i in range(rule.e.n):             # <<<<<<<<<<<<<<
@@ -5648,7 +5568,7 @@ static struct __pyx_obj_5_cdec_TRule *__pyx_f_5_cdec_convert_rule(struct __pyx_o
   for (__pyx_t_3 = 0; __pyx_t_3 < __pyx_t_2; __pyx_t_3+=1) {
     __pyx_v_i = __pyx_t_3;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":43
+    /* "/home/cdyer/cdec/python/src/grammar.pxi":43
  *     cdef int* esyms = rule.e.syms
  *     for i in range(rule.e.n):
  *         if _sa.sym_isvar(esyms[i]):             # <<<<<<<<<<<<<<
@@ -5658,7 +5578,7 @@ static struct __pyx_obj_5_cdec_TRule *__pyx_f_5_cdec_convert_rule(struct __pyx_o
     __pyx_t_6 = __pyx_f_4cdec_2sa_3_sa_sym_isvar((__pyx_v_esyms[__pyx_v_i]));
     if (__pyx_t_6) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":44
+      /* "/home/cdyer/cdec/python/src/grammar.pxi":44
  *     for i in range(rule.e.n):
  *         if _sa.sym_isvar(esyms[i]):
  *             e.append(NTRef(_sa.sym_getindex(esyms[i])))             # <<<<<<<<<<<<<<
@@ -5681,7 +5601,7 @@ static struct __pyx_obj_5_cdec_TRule *__pyx_f_5_cdec_convert_rule(struct __pyx_o
     }
     /*else*/ {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":46
+      /* "/home/cdyer/cdec/python/src/grammar.pxi":46
  *             e.append(NTRef(_sa.sym_getindex(esyms[i])))
  *         else:
  *             e.append(_sa.sym_tostring(esyms[i]))             # <<<<<<<<<<<<<<
@@ -5696,7 +5616,7 @@ static struct __pyx_obj_5_cdec_TRule *__pyx_f_5_cdec_convert_rule(struct __pyx_o
     __pyx_L10:;
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":47
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":47
  *         else:
  *             e.append(_sa.sym_tostring(esyms[i]))
  *     cdef a = [(point/65536, point%65536) for point in rule.word_alignments]             # <<<<<<<<<<<<<<
@@ -5716,18 +5636,10 @@ static struct __pyx_obj_5_cdec_TRule *__pyx_f_5_cdec_convert_rule(struct __pyx_o
   for (;;) {
     if (!__pyx_t_9 && PyList_CheckExact(__pyx_t_1)) {
       if (__pyx_t_8 >= PyList_GET_SIZE(__pyx_t_1)) break;
-      #if CYTHON_COMPILING_IN_CPYTHON
       __pyx_t_4 = PyList_GET_ITEM(__pyx_t_1, __pyx_t_8); __Pyx_INCREF(__pyx_t_4); __pyx_t_8++;
-      #else
-      __pyx_t_4 = PySequence_ITEM(__pyx_t_1, __pyx_t_8); __pyx_t_8++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 47; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
-      #endif
     } else if (!__pyx_t_9 && PyTuple_CheckExact(__pyx_t_1)) {
       if (__pyx_t_8 >= PyTuple_GET_SIZE(__pyx_t_1)) break;
-      #if CYTHON_COMPILING_IN_CPYTHON
       __pyx_t_4 = PyTuple_GET_ITEM(__pyx_t_1, __pyx_t_8); __Pyx_INCREF(__pyx_t_4); __pyx_t_8++;
-      #else
-      __pyx_t_4 = PySequence_ITEM(__pyx_t_1, __pyx_t_8); __pyx_t_8++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 47; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
-      #endif
     } else {
       __pyx_t_4 = __pyx_t_9(__pyx_t_1);
       if (unlikely(!__pyx_t_4)) {
@@ -5754,7 +5666,7 @@ static struct __pyx_obj_5_cdec_TRule *__pyx_f_5_cdec_convert_rule(struct __pyx_o
     __Pyx_GIVEREF(__pyx_t_10);
     __pyx_t_4 = 0;
     __pyx_t_10 = 0;
-    if (unlikely(__Pyx_PyList_Append(__pyx_t_5, (PyObject*)__pyx_t_11))) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 47; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (unlikely(PyList_Append(__pyx_t_5, (PyObject*)__pyx_t_11))) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 47; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(((PyObject *)__pyx_t_11)); __pyx_t_11 = 0;
   }
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
@@ -5762,7 +5674,7 @@ static struct __pyx_obj_5_cdec_TRule *__pyx_f_5_cdec_convert_rule(struct __pyx_o
   __pyx_v_a = ((PyObject *)__pyx_t_5);
   __Pyx_DECREF(((PyObject *)__pyx_t_5)); __pyx_t_5 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":48
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":48
  *             e.append(_sa.sym_tostring(esyms[i]))
  *     cdef a = [(point/65536, point%65536) for point in rule.word_alignments]
  *     return TRule(lhs, f, e, scores, a)             # <<<<<<<<<<<<<<
@@ -5824,14 +5736,14 @@ static int __pyx_pw_5_cdec_5TRule_1__init__(PyObject *__pyx_v_self, PyObject *__
   PyObject *__pyx_v_e = 0;
   PyObject *__pyx_v_scores = 0;
   PyObject *__pyx_v_a = 0;
+  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};
   int __pyx_r;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__init__ (wrapper)", 0);
   {
-    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":53
+    /* "/home/cdyer/cdec/python/src/grammar.pxi":53
  *     cdef shared_ptr[grammar.TRule]* rule
  * 
  *     def __init__(self, lhs, f, e, scores, a=None):             # <<<<<<<<<<<<<<
@@ -5854,20 +5766,24 @@ static int __pyx_pw_5_cdec_5TRule_1__init__(PyObject *__pyx_v_self, PyObject *__
       kw_args = PyDict_Size(__pyx_kwds);
       switch (pos_args) {
         case  0:
-        if (likely((values[0] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__lhs)) != 0)) kw_args--;
+        values[0] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__lhs);
+        if (likely(values[0])) kw_args--;
         else goto __pyx_L5_argtuple_error;
         case  1:
-        if (likely((values[1] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__f)) != 0)) kw_args--;
+        values[1] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__f);
+        if (likely(values[1])) kw_args--;
         else {
           __Pyx_RaiseArgtupleInvalid("__init__", 0, 4, 5, 1); {__pyx_filename = __pyx_f[2]; __pyx_lineno = 53; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
         case  2:
-        if (likely((values[2] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__e)) != 0)) kw_args--;
+        values[2] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__e);
+        if (likely(values[2])) kw_args--;
         else {
           __Pyx_RaiseArgtupleInvalid("__init__", 0, 4, 5, 2); {__pyx_filename = __pyx_f[2]; __pyx_lineno = 53; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
         case  3:
-        if (likely((values[3] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__scores)) != 0)) kw_args--;
+        values[3] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__scores);
+        if (likely(values[3])) kw_args--;
         else {
           __Pyx_RaiseArgtupleInvalid("__init__", 0, 4, 5, 3); {__pyx_filename = __pyx_f[2]; __pyx_lineno = 53; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
         }
@@ -5913,24 +5829,22 @@ static int __pyx_pw_5_cdec_5TRule_1__init__(PyObject *__pyx_v_self, PyObject *__
 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) {
   int __pyx_r;
   __Pyx_RefNannyDeclarations
-  TRule *__pyx_t_1;
-  int __pyx_t_2;
+  int __pyx_t_1;
   int __pyx_lineno = 0;
   const char *__pyx_filename = NULL;
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__init__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":54
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":54
  * 
  *     def __init__(self, lhs, f, e, scores, a=None):
  *         self.rule = new shared_ptr[grammar.TRule](new grammar.TRule())             # <<<<<<<<<<<<<<
  *         self.lhs = lhs
  *         self.e = e
  */
-  try {__pyx_t_1 = new TRule();} catch(...) {__Pyx_CppExn2PyErr(); {__pyx_filename = __pyx_f[2]; __pyx_lineno = 54; __pyx_clineno = __LINE__; goto __pyx_L1_error;}}
-  __pyx_v_self->rule = new boost::shared_ptr<TRule>(__pyx_t_1);
+  __pyx_v_self->rule = new boost::shared_ptr<TRule>(new TRule());
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":55
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":55
  *     def __init__(self, lhs, f, e, scores, a=None):
  *         self.rule = new shared_ptr[grammar.TRule](new grammar.TRule())
  *         self.lhs = lhs             # <<<<<<<<<<<<<<
@@ -5939,7 +5853,7 @@ static int __pyx_pf_5_cdec_5TRule___init__(struct __pyx_obj_5_cdec_TRule *__pyx_
  */
   if (PyObject_SetAttr(((PyObject *)__pyx_v_self), __pyx_n_s__lhs, __pyx_v_lhs) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 55; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":56
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":56
  *         self.rule = new shared_ptr[grammar.TRule](new grammar.TRule())
  *         self.lhs = lhs
  *         self.e = e             # <<<<<<<<<<<<<<
@@ -5948,7 +5862,7 @@ static int __pyx_pf_5_cdec_5TRule___init__(struct __pyx_obj_5_cdec_TRule *__pyx_
  */
   if (PyObject_SetAttr(((PyObject *)__pyx_v_self), __pyx_n_s__e, __pyx_v_e) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 56; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":57
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":57
  *         self.lhs = lhs
  *         self.e = e
  *         self.f = f             # <<<<<<<<<<<<<<
@@ -5957,7 +5871,7 @@ static int __pyx_pf_5_cdec_5TRule___init__(struct __pyx_obj_5_cdec_TRule *__pyx_
  */
   if (PyObject_SetAttr(((PyObject *)__pyx_v_self), __pyx_n_s__f, __pyx_v_f) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 57; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":58
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":58
  *         self.e = e
  *         self.f = f
  *         self.scores = scores             # <<<<<<<<<<<<<<
@@ -5966,17 +5880,17 @@ static int __pyx_pf_5_cdec_5TRule___init__(struct __pyx_obj_5_cdec_TRule *__pyx_
  */
   if (PyObject_SetAttr(((PyObject *)__pyx_v_self), __pyx_n_s__scores, __pyx_v_scores) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 58; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":59
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":59
  *         self.f = f
  *         self.scores = scores
  *         if a:             # <<<<<<<<<<<<<<
  *             self.a = a
  *         self.rule.get().ComputeArity()
  */
-  __pyx_t_2 = __Pyx_PyObject_IsTrue(__pyx_v_a); if (unlikely(__pyx_t_2 < 0)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 59; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (__pyx_t_2) {
+  __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_v_a); if (unlikely(__pyx_t_1 < 0)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 59; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__pyx_t_1) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":60
+    /* "/home/cdyer/cdec/python/src/grammar.pxi":60
  *         self.scores = scores
  *         if a:
  *             self.a = a             # <<<<<<<<<<<<<<
@@ -5988,7 +5902,7 @@ 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":61
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":61
  *         if a:
  *             self.a = a
  *         self.rule.get().ComputeArity()             # <<<<<<<<<<<<<<
@@ -6016,7 +5930,7 @@ static void __pyx_pw_5_cdec_5TRule_3__dealloc__(PyObject *__pyx_v_self) {
   __Pyx_RefNannyFinishContext();
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":63
+/* "/home/cdyer/cdec/python/src/grammar.pxi":63
  *         self.rule.get().ComputeArity()
  * 
  *     def __dealloc__(self):             # <<<<<<<<<<<<<<
@@ -6028,7 +5942,7 @@ static void __pyx_pf_5_cdec_5TRule_2__dealloc__(CYTHON_UNUSED struct __pyx_obj_5
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__dealloc__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":64
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":64
  * 
  *     def __dealloc__(self):
  *         del self.rule             # <<<<<<<<<<<<<<
@@ -6051,7 +5965,7 @@ static PyObject *__pyx_pw_5_cdec_5TRule_5arity_1__get__(PyObject *__pyx_v_self)
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":67
+/* "/home/cdyer/cdec/python/src/grammar.pxi":67
  * 
  *     property arity:
  *         def __get__(self):             # <<<<<<<<<<<<<<
@@ -6068,7 +5982,7 @@ static PyObject *__pyx_pf_5_cdec_5TRule_5arity___get__(struct __pyx_obj_5_cdec_T
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__get__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":68
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":68
  *     property arity:
  *         def __get__(self):
  *             return self.rule.get().arity_             # <<<<<<<<<<<<<<
@@ -6105,7 +6019,7 @@ static PyObject *__pyx_pw_5_cdec_5TRule_1f_1__get__(PyObject *__pyx_v_self) {
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":71
+/* "/home/cdyer/cdec/python/src/grammar.pxi":71
  * 
  *     property f:
  *         def __get__(self):             # <<<<<<<<<<<<<<
@@ -6132,7 +6046,7 @@ static PyObject *__pyx_pf_5_cdec_5TRule_1f___get__(struct __pyx_obj_5_cdec_TRule
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__get__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":72
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":72
  *     property f:
  *         def __get__(self):
  *             cdef vector[WordID]* f_ = &self.rule.get().f_             # <<<<<<<<<<<<<<
@@ -6141,7 +6055,7 @@ 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":74
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":74
  *             cdef vector[WordID]* f_ = &self.rule.get().f_
  *             cdef WordID w
  *             cdef f = []             # <<<<<<<<<<<<<<
@@ -6153,7 +6067,7 @@ static PyObject *__pyx_pf_5_cdec_5TRule_1f___get__(struct __pyx_obj_5_cdec_TRule
   __pyx_v_f = ((PyObject *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":76
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":76
  *             cdef f = []
  *             cdef unsigned i
  *             cdef int idx = 0             # <<<<<<<<<<<<<<
@@ -6162,7 +6076,7 @@ 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":77
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":77
  *             cdef unsigned i
  *             cdef int idx = 0
  *             for i in range(f_.size()):             # <<<<<<<<<<<<<<
@@ -6173,7 +6087,7 @@ static PyObject *__pyx_pf_5_cdec_5TRule_1f___get__(struct __pyx_obj_5_cdec_TRule
   for (__pyx_t_3 = 0; __pyx_t_3 < __pyx_t_2; __pyx_t_3+=1) {
     __pyx_v_i = __pyx_t_3;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":78
+    /* "/home/cdyer/cdec/python/src/grammar.pxi":78
  *             cdef int idx = 0
  *             for i in range(f_.size()):
  *                 w = f_[0][i]             # <<<<<<<<<<<<<<
@@ -6182,7 +6096,7 @@ static PyObject *__pyx_pf_5_cdec_5TRule_1f___get__(struct __pyx_obj_5_cdec_TRule
  */
     __pyx_v_w = ((__pyx_v_f_[0])[__pyx_v_i]);
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":79
+    /* "/home/cdyer/cdec/python/src/grammar.pxi":79
  *             for i in range(f_.size()):
  *                 w = f_[0][i]
  *                 if w < 0:             # <<<<<<<<<<<<<<
@@ -6192,7 +6106,7 @@ static PyObject *__pyx_pf_5_cdec_5TRule_1f___get__(struct __pyx_obj_5_cdec_TRule
     __pyx_t_4 = (__pyx_v_w < 0);
     if (__pyx_t_4) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":80
+      /* "/home/cdyer/cdec/python/src/grammar.pxi":80
  *                 w = f_[0][i]
  *                 if w < 0:
  *                     idx += 1             # <<<<<<<<<<<<<<
@@ -6201,7 +6115,7 @@ 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":81
+      /* "/home/cdyer/cdec/python/src/grammar.pxi":81
  *                 if w < 0:
  *                     idx += 1
  *                     f.append(NT(TDConvert(-w), idx))             # <<<<<<<<<<<<<<
@@ -6231,7 +6145,7 @@ static PyObject *__pyx_pf_5_cdec_5TRule_1f___get__(struct __pyx_obj_5_cdec_TRule
     }
     /*else*/ {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":83
+      /* "/home/cdyer/cdec/python/src/grammar.pxi":83
  *                     f.append(NT(TDConvert(-w), idx))
  *                 else:
  *                     f.append(unicode(TDConvert(w), encoding='utf8'))             # <<<<<<<<<<<<<<
@@ -6260,7 +6174,7 @@ static PyObject *__pyx_pf_5_cdec_5TRule_1f___get__(struct __pyx_obj_5_cdec_TRule
     __pyx_L5:;
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":84
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":84
  *                 else:
  *                     f.append(unicode(TDConvert(w), encoding='utf8'))
  *             return f             # <<<<<<<<<<<<<<
@@ -6298,7 +6212,7 @@ static int __pyx_pw_5_cdec_5TRule_1f_3__set__(PyObject *__pyx_v_self, PyObject *
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":86
+/* "/home/cdyer/cdec/python/src/grammar.pxi":86
  *             return f
  * 
  *         def __set__(self, f):             # <<<<<<<<<<<<<<
@@ -6323,7 +6237,7 @@ static int __pyx_pf_5_cdec_5TRule_1f_2__set__(struct __pyx_obj_5_cdec_TRule *__p
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__set__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":87
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":87
  * 
  *         def __set__(self, f):
  *             cdef vector[WordID]* f_ = &self.rule.get().f_             # <<<<<<<<<<<<<<
@@ -6332,7 +6246,7 @@ static int __pyx_pf_5_cdec_5TRule_1f_2__set__(struct __pyx_obj_5_cdec_TRule *__p
  */
   __pyx_v_f_ = (&__pyx_v_self->rule->get()->f_);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":88
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":88
  *         def __set__(self, f):
  *             cdef vector[WordID]* f_ = &self.rule.get().f_
  *             f_.resize(len(f))             # <<<<<<<<<<<<<<
@@ -6342,7 +6256,7 @@ static int __pyx_pf_5_cdec_5TRule_1f_2__set__(struct __pyx_obj_5_cdec_TRule *__p
   __pyx_t_1 = PyObject_Length(__pyx_v_f); if (unlikely(__pyx_t_1 == -1)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 88; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_v_f_->resize(__pyx_t_1);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":90
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":90
  *             f_.resize(len(f))
  *             cdef unsigned i
  *             cdef int idx = 0             # <<<<<<<<<<<<<<
@@ -6351,7 +6265,7 @@ static int __pyx_pf_5_cdec_5TRule_1f_2__set__(struct __pyx_obj_5_cdec_TRule *__p
  */
   __pyx_v_idx = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":91
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":91
  *             cdef unsigned i
  *             cdef int idx = 0
  *             for i in range(len(f)):             # <<<<<<<<<<<<<<
@@ -6362,7 +6276,7 @@ static int __pyx_pf_5_cdec_5TRule_1f_2__set__(struct __pyx_obj_5_cdec_TRule *__p
   for (__pyx_t_2 = 0; __pyx_t_2 < __pyx_t_1; __pyx_t_2+=1) {
     __pyx_v_i = __pyx_t_2;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":92
+    /* "/home/cdyer/cdec/python/src/grammar.pxi":92
  *             cdef int idx = 0
  *             for i in range(len(f)):
  *                 if isinstance(f[i], NT):             # <<<<<<<<<<<<<<
@@ -6378,7 +6292,7 @@ static int __pyx_pf_5_cdec_5TRule_1f_2__set__(struct __pyx_obj_5_cdec_TRule *__p
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     if (__pyx_t_5) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":93
+      /* "/home/cdyer/cdec/python/src/grammar.pxi":93
  *             for i in range(len(f)):
  *                 if isinstance(f[i], NT):
  *                     f_[0][i] = -TDConvert(<char *>f[i].cat)             # <<<<<<<<<<<<<<
@@ -6397,7 +6311,7 @@ static int __pyx_pf_5_cdec_5TRule_1f_2__set__(struct __pyx_obj_5_cdec_TRule *__p
     }
     /*else*/ {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":95
+      /* "/home/cdyer/cdec/python/src/grammar.pxi":95
  *                     f_[0][i] = -TDConvert(<char *>f[i].cat)
  *                 else:
  *                     f_[0][i] = TDConvert(<char *>as_str(f[i]))             # <<<<<<<<<<<<<<
@@ -6435,7 +6349,7 @@ static PyObject *__pyx_pw_5_cdec_5TRule_1e_1__get__(PyObject *__pyx_v_self) {
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":98
+/* "/home/cdyer/cdec/python/src/grammar.pxi":98
  * 
  *     property e:
  *         def __get__(self):             # <<<<<<<<<<<<<<
@@ -6462,7 +6376,7 @@ static PyObject *__pyx_pf_5_cdec_5TRule_1e___get__(struct __pyx_obj_5_cdec_TRule
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__get__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":99
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":99
  *     property e:
  *         def __get__(self):
  *             cdef vector[WordID]* e_ = &self.rule.get().e_             # <<<<<<<<<<<<<<
@@ -6471,7 +6385,7 @@ static PyObject *__pyx_pf_5_cdec_5TRule_1e___get__(struct __pyx_obj_5_cdec_TRule
  */
   __pyx_v_e_ = (&__pyx_v_self->rule->get()->e_);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":101
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":101
  *             cdef vector[WordID]* e_ = &self.rule.get().e_
  *             cdef WordID w
  *             cdef e = []             # <<<<<<<<<<<<<<
@@ -6483,7 +6397,7 @@ static PyObject *__pyx_pf_5_cdec_5TRule_1e___get__(struct __pyx_obj_5_cdec_TRule
   __pyx_v_e = ((PyObject *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":103
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":103
  *             cdef e = []
  *             cdef unsigned i
  *             cdef int idx = 0             # <<<<<<<<<<<<<<
@@ -6492,7 +6406,7 @@ static PyObject *__pyx_pf_5_cdec_5TRule_1e___get__(struct __pyx_obj_5_cdec_TRule
  */
   __pyx_v_idx = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":104
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":104
  *             cdef unsigned i
  *             cdef int idx = 0
  *             for i in range(e_.size()):             # <<<<<<<<<<<<<<
@@ -6503,7 +6417,7 @@ static PyObject *__pyx_pf_5_cdec_5TRule_1e___get__(struct __pyx_obj_5_cdec_TRule
   for (__pyx_t_3 = 0; __pyx_t_3 < __pyx_t_2; __pyx_t_3+=1) {
     __pyx_v_i = __pyx_t_3;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":105
+    /* "/home/cdyer/cdec/python/src/grammar.pxi":105
  *             cdef int idx = 0
  *             for i in range(e_.size()):
  *                 w = e_[0][i]             # <<<<<<<<<<<<<<
@@ -6512,7 +6426,7 @@ static PyObject *__pyx_pf_5_cdec_5TRule_1e___get__(struct __pyx_obj_5_cdec_TRule
  */
     __pyx_v_w = ((__pyx_v_e_[0])[__pyx_v_i]);
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":106
+    /* "/home/cdyer/cdec/python/src/grammar.pxi":106
  *             for i in range(e_.size()):
  *                 w = e_[0][i]
  *                 if w < 1:             # <<<<<<<<<<<<<<
@@ -6522,7 +6436,7 @@ static PyObject *__pyx_pf_5_cdec_5TRule_1e___get__(struct __pyx_obj_5_cdec_TRule
     __pyx_t_4 = (__pyx_v_w < 1);
     if (__pyx_t_4) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":107
+      /* "/home/cdyer/cdec/python/src/grammar.pxi":107
  *                 w = e_[0][i]
  *                 if w < 1:
  *                     idx += 1             # <<<<<<<<<<<<<<
@@ -6531,7 +6445,7 @@ static PyObject *__pyx_pf_5_cdec_5TRule_1e___get__(struct __pyx_obj_5_cdec_TRule
  */
       __pyx_v_idx = (__pyx_v_idx + 1);
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":108
+      /* "/home/cdyer/cdec/python/src/grammar.pxi":108
  *                 if w < 1:
  *                     idx += 1
  *                     e.append(NTRef(1-w))             # <<<<<<<<<<<<<<
@@ -6556,7 +6470,7 @@ static PyObject *__pyx_pf_5_cdec_5TRule_1e___get__(struct __pyx_obj_5_cdec_TRule
     }
     /*else*/ {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":110
+      /* "/home/cdyer/cdec/python/src/grammar.pxi":110
  *                     e.append(NTRef(1-w))
  *                 else:
  *                     e.append(unicode(TDConvert(w), encoding='utf8'))             # <<<<<<<<<<<<<<
@@ -6585,7 +6499,7 @@ static PyObject *__pyx_pf_5_cdec_5TRule_1e___get__(struct __pyx_obj_5_cdec_TRule
     __pyx_L5:;
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":111
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":111
  *                 else:
  *                     e.append(unicode(TDConvert(w), encoding='utf8'))
  *             return e             # <<<<<<<<<<<<<<
@@ -6623,7 +6537,7 @@ static int __pyx_pw_5_cdec_5TRule_1e_3__set__(PyObject *__pyx_v_self, PyObject *
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":113
+/* "/home/cdyer/cdec/python/src/grammar.pxi":113
  *             return e
  * 
  *         def __set__(self, e):             # <<<<<<<<<<<<<<
@@ -6647,7 +6561,7 @@ static int __pyx_pf_5_cdec_5TRule_1e_2__set__(struct __pyx_obj_5_cdec_TRule *__p
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   __Pyx_RefNannySetupContext("__set__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":114
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":114
  * 
  *         def __set__(self, e):
  *             cdef vector[WordID]* e_ = &self.rule.get().e_             # <<<<<<<<<<<<<<
@@ -6656,7 +6570,7 @@ static int __pyx_pf_5_cdec_5TRule_1e_2__set__(struct __pyx_obj_5_cdec_TRule *__p
  */
   __pyx_v_e_ = (&__pyx_v_self->rule->get()->e_);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":115
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":115
  *         def __set__(self, e):
  *             cdef vector[WordID]* e_ = &self.rule.get().e_
  *             e_.resize(len(e))             # <<<<<<<<<<<<<<
@@ -6666,7 +6580,7 @@ static int __pyx_pf_5_cdec_5TRule_1e_2__set__(struct __pyx_obj_5_cdec_TRule *__p
   __pyx_t_1 = PyObject_Length(__pyx_v_e); if (unlikely(__pyx_t_1 == -1)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 115; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_v_e_->resize(__pyx_t_1);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":117
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":117
  *             e_.resize(len(e))
  *             cdef unsigned i
  *             for i in range(len(e)):             # <<<<<<<<<<<<<<
@@ -6677,7 +6591,7 @@ static int __pyx_pf_5_cdec_5TRule_1e_2__set__(struct __pyx_obj_5_cdec_TRule *__p
   for (__pyx_t_2 = 0; __pyx_t_2 < __pyx_t_1; __pyx_t_2+=1) {
     __pyx_v_i = __pyx_t_2;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":118
+    /* "/home/cdyer/cdec/python/src/grammar.pxi":118
  *             cdef unsigned i
  *             for i in range(len(e)):
  *                 if isinstance(e[i], NTRef):             # <<<<<<<<<<<<<<
@@ -6693,7 +6607,7 @@ static int __pyx_pf_5_cdec_5TRule_1e_2__set__(struct __pyx_obj_5_cdec_TRule *__p
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     if (__pyx_t_5) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":119
+      /* "/home/cdyer/cdec/python/src/grammar.pxi":119
  *             for i in range(len(e)):
  *                 if isinstance(e[i], NTRef):
  *                     e_[0][i] = 1-e[i].ref             # <<<<<<<<<<<<<<
@@ -6715,7 +6629,7 @@ static int __pyx_pf_5_cdec_5TRule_1e_2__set__(struct __pyx_obj_5_cdec_TRule *__p
     }
     /*else*/ {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":121
+      /* "/home/cdyer/cdec/python/src/grammar.pxi":121
  *                     e_[0][i] = 1-e[i].ref
  *                 else:
  *                     e_[0][i] = TDConvert(<char *>as_str(e[i]))             # <<<<<<<<<<<<<<
@@ -6754,7 +6668,7 @@ static PyObject *__pyx_pw_5_cdec_5TRule_1a_1__get__(PyObject *__pyx_v_self) {
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":124
+/* "/home/cdyer/cdec/python/src/grammar.pxi":124
  * 
  *     property a:
  *         def __get__(self):             # <<<<<<<<<<<<<<
@@ -6819,7 +6733,7 @@ static PyObject *__pyx_gb_5_cdec_5TRule_1a_2generator2(__pyx_GeneratorObject *__
   __pyx_L3_first_run:;
   if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 124; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":126
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":126
  *         def __get__(self):
  *             cdef unsigned i
  *             cdef vector[grammar.AlignmentPoint]* a = &self.rule.get().a_             # <<<<<<<<<<<<<<
@@ -6828,7 +6742,7 @@ static PyObject *__pyx_gb_5_cdec_5TRule_1a_2generator2(__pyx_GeneratorObject *__
  */
   __pyx_cur_scope->__pyx_v_a = (&__pyx_cur_scope->__pyx_v_self->rule->get()->a_);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":127
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":127
  *             cdef unsigned i
  *             cdef vector[grammar.AlignmentPoint]* a = &self.rule.get().a_
  *             for i in range(a.size()):             # <<<<<<<<<<<<<<
@@ -6839,7 +6753,7 @@ static PyObject *__pyx_gb_5_cdec_5TRule_1a_2generator2(__pyx_GeneratorObject *__
   for (__pyx_t_2 = 0; __pyx_t_2 < __pyx_t_1; __pyx_t_2+=1) {
     __pyx_cur_scope->__pyx_v_i = __pyx_t_2;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":128
+    /* "/home/cdyer/cdec/python/src/grammar.pxi":128
  *             cdef vector[grammar.AlignmentPoint]* a = &self.rule.get().a_
  *             for i in range(a.size()):
  *                 yield (a[0][i].s_, a[0][i].t_)             # <<<<<<<<<<<<<<
@@ -6882,7 +6796,6 @@ static PyObject *__pyx_gb_5_cdec_5TRule_1a_2generator2(__pyx_GeneratorObject *__
   __pyx_L0:;
   __Pyx_XDECREF(__pyx_r);
   __pyx_generator->resume_label = -1;
-  __Pyx_Generator_clear((PyObject*)__pyx_generator);
   __Pyx_RefNannyFinishContext();
   return NULL;
 }
@@ -6898,7 +6811,7 @@ static int __pyx_pw_5_cdec_5TRule_1a_4__set__(PyObject *__pyx_v_self, PyObject *
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":130
+/* "/home/cdyer/cdec/python/src/grammar.pxi":130
  *                 yield (a[0][i].s_, a[0][i].t_)
  * 
  *         def __set__(self, a):             # <<<<<<<<<<<<<<
@@ -6927,7 +6840,7 @@ static int __pyx_pf_5_cdec_5TRule_1a_3__set__(struct __pyx_obj_5_cdec_TRule *__p
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__set__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":131
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":131
  * 
  *         def __set__(self, a):
  *             cdef vector[grammar.AlignmentPoint]* a_ = &self.rule.get().a_             # <<<<<<<<<<<<<<
@@ -6936,7 +6849,7 @@ static int __pyx_pf_5_cdec_5TRule_1a_3__set__(struct __pyx_obj_5_cdec_TRule *__p
  */
   __pyx_v_a_ = (&__pyx_v_self->rule->get()->a_);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":132
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":132
  *         def __set__(self, a):
  *             cdef vector[grammar.AlignmentPoint]* a_ = &self.rule.get().a_
  *             a_.resize(len(a))             # <<<<<<<<<<<<<<
@@ -6946,7 +6859,7 @@ static int __pyx_pf_5_cdec_5TRule_1a_3__set__(struct __pyx_obj_5_cdec_TRule *__p
   __pyx_t_1 = PyObject_Length(__pyx_v_a); if (unlikely(__pyx_t_1 == -1)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 132; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_v_a_->resize(__pyx_t_1);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":135
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":135
  *             cdef unsigned i
  *             cdef int s, t
  *             for i in range(len(a)):             # <<<<<<<<<<<<<<
@@ -6957,7 +6870,7 @@ static int __pyx_pf_5_cdec_5TRule_1a_3__set__(struct __pyx_obj_5_cdec_TRule *__p
   for (__pyx_t_2 = 0; __pyx_t_2 < __pyx_t_1; __pyx_t_2+=1) {
     __pyx_v_i = __pyx_t_2;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":136
+    /* "/home/cdyer/cdec/python/src/grammar.pxi":136
  *             cdef int s, t
  *             for i in range(len(a)):
  *                 s, t = a[i]             # <<<<<<<<<<<<<<
@@ -6968,33 +6881,27 @@ static int __pyx_pf_5_cdec_5TRule_1a_3__set__(struct __pyx_obj_5_cdec_TRule *__p
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     if ((likely(PyTuple_CheckExact(__pyx_t_3))) || (PyList_CheckExact(__pyx_t_3))) {
       PyObject* sequence = __pyx_t_3;
-      #if CYTHON_COMPILING_IN_CPYTHON
-      Py_ssize_t size = Py_SIZE(sequence);
-      #else
-      Py_ssize_t size = PySequence_Size(sequence);
-      #endif
-      if (unlikely(size != 2)) {
-        if (size > 2) __Pyx_RaiseTooManyValuesError(2);
-        else if (size >= 0) __Pyx_RaiseNeedMoreValuesError(size);
-        {__pyx_filename = __pyx_f[2]; __pyx_lineno = 136; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      }
-      #if CYTHON_COMPILING_IN_CPYTHON
       if (likely(PyTuple_CheckExact(sequence))) {
+        if (unlikely(PyTuple_GET_SIZE(sequence) != 2)) {
+          if (PyTuple_GET_SIZE(sequence) > 2) __Pyx_RaiseTooManyValuesError(2);
+          else __Pyx_RaiseNeedMoreValuesError(PyTuple_GET_SIZE(sequence));
+          {__pyx_filename = __pyx_f[2]; __pyx_lineno = 136; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        }
         __pyx_t_4 = PyTuple_GET_ITEM(sequence, 0); 
         __pyx_t_5 = PyTuple_GET_ITEM(sequence, 1); 
       } else {
+        if (unlikely(PyList_GET_SIZE(sequence) != 2)) {
+          if (PyList_GET_SIZE(sequence) > 2) __Pyx_RaiseTooManyValuesError(2);
+          else __Pyx_RaiseNeedMoreValuesError(PyList_GET_SIZE(sequence));
+          {__pyx_filename = __pyx_f[2]; __pyx_lineno = 136; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        }
         __pyx_t_4 = PyList_GET_ITEM(sequence, 0); 
         __pyx_t_5 = PyList_GET_ITEM(sequence, 1); 
       }
       __Pyx_INCREF(__pyx_t_4);
       __Pyx_INCREF(__pyx_t_5);
-      #else
-      __pyx_t_4 = PySequence_ITEM(sequence, 0); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 136; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __pyx_t_5 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 136; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      #endif
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    } else
-    {
+    } else {
       Py_ssize_t index = -1;
       __pyx_t_6 = PyObject_GetIter(__pyx_t_3); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 136; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_6);
@@ -7005,13 +6912,12 @@ static int __pyx_pf_5_cdec_5TRule_1a_3__set__(struct __pyx_obj_5_cdec_TRule *__p
       index = 1; __pyx_t_5 = __pyx_t_7(__pyx_t_6); if (unlikely(!__pyx_t_5)) goto __pyx_L5_unpacking_failed;
       __Pyx_GOTREF(__pyx_t_5);
       if (__Pyx_IternextUnpackEndCheck(__pyx_t_7(__pyx_t_6), 2) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 136; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __pyx_t_7 = NULL;
       __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
       goto __pyx_L6_unpacking_done;
       __pyx_L5_unpacking_failed:;
       __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-      __pyx_t_7 = NULL;
-      if (__Pyx_IterFinish() == 0) __Pyx_RaiseNeedMoreValuesError(index);
+      if (PyErr_Occurred() && PyErr_ExceptionMatches(PyExc_StopIteration)) PyErr_Clear();
+      if (!PyErr_Occurred()) __Pyx_RaiseNeedMoreValuesError(index);
       {__pyx_filename = __pyx_f[2]; __pyx_lineno = 136; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __pyx_L6_unpacking_done:;
     }
@@ -7022,7 +6928,7 @@ static int __pyx_pf_5_cdec_5TRule_1a_3__set__(struct __pyx_obj_5_cdec_TRule *__p
     __pyx_v_s = __pyx_t_8;
     __pyx_v_t = __pyx_t_9;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":137
+    /* "/home/cdyer/cdec/python/src/grammar.pxi":137
  *             for i in range(len(a)):
  *                 s, t = a[i]
  *                 a_[0][i] = grammar.AlignmentPoint(s, t)             # <<<<<<<<<<<<<<
@@ -7057,7 +6963,7 @@ static PyObject *__pyx_pw_5_cdec_5TRule_6scores_1__get__(PyObject *__pyx_v_self)
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":140
+/* "/home/cdyer/cdec/python/src/grammar.pxi":140
  * 
  *     property scores:
  *         def __get__(self):             # <<<<<<<<<<<<<<
@@ -7075,7 +6981,7 @@ static PyObject *__pyx_pf_5_cdec_5TRule_6scores___get__(struct __pyx_obj_5_cdec_
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__get__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":141
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":141
  *     property scores:
  *         def __get__(self):
  *             cdef SparseVector scores = SparseVector.__new__(SparseVector)             # <<<<<<<<<<<<<<
@@ -7088,7 +6994,7 @@ static PyObject *__pyx_pf_5_cdec_5TRule_6scores___get__(struct __pyx_obj_5_cdec_
   __pyx_v_scores = ((struct __pyx_obj_5_cdec_SparseVector *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":142
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":142
  *         def __get__(self):
  *             cdef SparseVector scores = SparseVector.__new__(SparseVector)
  *             scores.vector = new FastSparseVector[double](self.rule.get().scores_)             # <<<<<<<<<<<<<<
@@ -7097,7 +7003,7 @@ static PyObject *__pyx_pf_5_cdec_5TRule_6scores___get__(struct __pyx_obj_5_cdec_
  */
   __pyx_v_scores->vector = new FastSparseVector<double>(__pyx_v_self->rule->get()->scores_);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":143
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":143
  *             cdef SparseVector scores = SparseVector.__new__(SparseVector)
  *             scores.vector = new FastSparseVector[double](self.rule.get().scores_)
  *             return scores             # <<<<<<<<<<<<<<
@@ -7133,7 +7039,7 @@ static int __pyx_pw_5_cdec_5TRule_6scores_3__set__(PyObject *__pyx_v_self, PyObj
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":145
+/* "/home/cdyer/cdec/python/src/grammar.pxi":145
  *             return scores
  * 
  *         def __set__(self, scores):             # <<<<<<<<<<<<<<
@@ -7163,7 +7069,7 @@ static int __pyx_pf_5_cdec_5TRule_6scores_2__set__(struct __pyx_obj_5_cdec_TRule
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__set__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":146
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":146
  * 
  *         def __set__(self, scores):
  *             cdef FastSparseVector[double]* scores_ = &self.rule.get().scores_             # <<<<<<<<<<<<<<
@@ -7172,7 +7078,7 @@ static int __pyx_pf_5_cdec_5TRule_6scores_2__set__(struct __pyx_obj_5_cdec_TRule
  */
   __pyx_v_scores_ = (&__pyx_v_self->rule->get()->scores_);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":147
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":147
  *         def __set__(self, scores):
  *             cdef FastSparseVector[double]* scores_ = &self.rule.get().scores_
  *             scores_.clear()             # <<<<<<<<<<<<<<
@@ -7181,7 +7087,7 @@ static int __pyx_pf_5_cdec_5TRule_6scores_2__set__(struct __pyx_obj_5_cdec_TRule
  */
   __pyx_v_scores_->clear();
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":150
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":150
  *             cdef int fid
  *             cdef float fval
  *             for fname, fval in scores.items():             # <<<<<<<<<<<<<<
@@ -7205,18 +7111,10 @@ static int __pyx_pf_5_cdec_5TRule_6scores_2__set__(struct __pyx_obj_5_cdec_TRule
   for (;;) {
     if (!__pyx_t_4 && PyList_CheckExact(__pyx_t_1)) {
       if (__pyx_t_3 >= PyList_GET_SIZE(__pyx_t_1)) break;
-      #if CYTHON_COMPILING_IN_CPYTHON
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-      #else
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-      }
-      #if CYTHON_COMPILING_IN_CPYTHON
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+        if (unlikely(PyTuple_GET_SIZE(sequence) != 2)) {
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+          {__pyx_filename = __pyx_f[2]; __pyx_lineno = 150; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        }
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+          {__pyx_filename = __pyx_f[2]; __pyx_lineno = 150; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-      #endif
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@@ -7267,13 +7159,12 @@ static int __pyx_pf_5_cdec_5TRule_6scores_2__set__(struct __pyx_obj_5_cdec_TRule
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-      __pyx_t_8 = NULL;
-      if (__Pyx_IterFinish() == 0) __Pyx_RaiseNeedMoreValuesError(index);
+      if (PyErr_Occurred() && PyErr_ExceptionMatches(PyExc_StopIteration)) PyErr_Clear();
+      if (!PyErr_Occurred()) __Pyx_RaiseNeedMoreValuesError(index);
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@@ -7284,7 +7175,7 @@ static int __pyx_pf_5_cdec_5TRule_6scores_2__set__(struct __pyx_obj_5_cdec_TRule
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     __pyx_v_fval = __pyx_t_9;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":151
+    /* "/home/cdyer/cdec/python/src/grammar.pxi":151
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":152
+    /* "/home/cdyer/cdec/python/src/grammar.pxi":152
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":153
+    /* "/home/cdyer/cdec/python/src/grammar.pxi":153
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 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":156
+/* "/home/cdyer/cdec/python/src/grammar.pxi":156
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":157
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":157
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@@ -7419,7 +7310,7 @@ static int __pyx_pw_5_cdec_5TRule_3lhs_3__set__(PyObject *__pyx_v_self, PyObject
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 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":159
+/* "/home/cdyer/cdec/python/src/grammar.pxi":159
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  * 
  *         def __set__(self, lhs):             # <<<<<<<<<<<<<<
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":160
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":161
+    /* "/home/cdyer/cdec/python/src/grammar.pxi":161
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":162
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":162
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+static PyObject *__pyx_gb_5_cdec_5TRule_7__str___2generator19(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":165
+/* "/home/cdyer/cdec/python/src/grammar.pxi":165
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  *     def __str__(self):
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+    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_5_cdec_5TRule_7__str___2generator19, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 165; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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 }
 
-static PyObject *__pyx_gb_5_cdec_5TRule_7__str___2generator18(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
+static PyObject *__pyx_gb_5_cdec_5TRule_7__str___2generator19(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
 {
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@@ -7652,12 +7535,11 @@ static PyObject *__pyx_gb_5_cdec_5TRule_7__str___2generator18(__pyx_GeneratorObj
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-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":164
+/* "/home/cdyer/cdec/python/src/grammar.pxi":164
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   __Pyx_GIVEREF((PyObject *)__pyx_cur_scope->__pyx_v_self);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":165
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":165
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  *     def __str__(self):
  *         scores = ' '.join('%s=%s' % feat for feat in self.scores)             # <<<<<<<<<<<<<<
@@ -7712,7 +7594,7 @@ static PyObject *__pyx_pf_5_cdec_5TRule_4__str__(struct __pyx_obj_5_cdec_TRule *
   __pyx_v_scores = __pyx_t_2;
   __pyx_t_2 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":166
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":166
  *     def __str__(self):
  *         scores = ' '.join('%s=%s' % feat for feat in self.scores)
  *         return '%s ||| %s ||| %s ||| %s' % (self.lhs,             # <<<<<<<<<<<<<<
@@ -7723,7 +7605,7 @@ static PyObject *__pyx_pf_5_cdec_5TRule_4__str__(struct __pyx_obj_5_cdec_TRule *
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":167
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":167
  *         scores = ' '.join('%s=%s' % feat for feat in self.scores)
  *         return '%s ||| %s ||| %s ||| %s' % (self.lhs,
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   PyObject *__pyx_v_rhs = 0;
   PyObject *__pyx_v_scores = 0;
   PyObject *__pyx_v_a = 0;
+  static PyObject **__pyx_pyargnames[] = {&__pyx_n_s__lhs,&__pyx_n_s__rhs,&__pyx_n_s__scores,&__pyx_n_s__a,0};
   int __pyx_r;
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     PyObject* values[4] = {0,0,0,0};
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":170
+    /* "/home/cdyer/cdec/python/src/grammar.pxi":170
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       switch (pos_args) {
         case  0:
-        if (likely((values[0] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__lhs)) != 0)) kw_args--;
+        values[0] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__lhs);
+        if (likely(values[0])) kw_args--;
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         case  1:
-        if (likely((values[1] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__rhs)) != 0)) kw_args--;
+        values[1] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__rhs);
+        if (likely(values[1])) kw_args--;
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         }
         case  2:
-        if (likely((values[2] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__scores)) != 0)) kw_args--;
+        values[2] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__scores);
+        if (likely(values[2])) kw_args--;
         else {
           __Pyx_RaiseArgtupleInvalid("__init__", 0, 3, 4, 2); {__pyx_filename = __pyx_f[2]; __pyx_lineno = 170; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":171
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":171
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   __pyx_v_i = 1;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":172
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":172
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  *         e = []             # <<<<<<<<<<<<<<
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":173
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":173
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       __pyx_t_4 = PyTuple_GET_ITEM(__pyx_t_1, __pyx_t_2); __Pyx_INCREF(__pyx_t_4); __pyx_t_2++;
-      #else
-      __pyx_t_4 = PySequence_ITEM(__pyx_t_1, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 173; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
-      #endif
     } else {
       __pyx_t_4 = __pyx_t_3(__pyx_t_1);
       if (unlikely(!__pyx_t_4)) {
@@ -7964,7 +7841,7 @@ static int __pyx_pf_5_cdec_5MRule___init__(struct __pyx_obj_5_cdec_MRule *__pyx_
     __pyx_v_s = __pyx_t_4;
     __pyx_t_4 = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":174
+    /* "/home/cdyer/cdec/python/src/grammar.pxi":174
  *         e = []
  *         for s in rhs:
  *             if isinstance(s, NT):             # <<<<<<<<<<<<<<
@@ -7977,7 +7854,7 @@ static int __pyx_pf_5_cdec_5MRule___init__(struct __pyx_obj_5_cdec_MRule *__pyx_
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     if (__pyx_t_5) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":175
+      /* "/home/cdyer/cdec/python/src/grammar.pxi":175
  *         for s in rhs:
  *             if isinstance(s, NT):
  *                 e.append(NTRef(i))             # <<<<<<<<<<<<<<
@@ -7997,7 +7874,7 @@ static int __pyx_pf_5_cdec_5MRule___init__(struct __pyx_obj_5_cdec_MRule *__pyx_
       __pyx_t_7 = PyList_Append(__pyx_v_e, __pyx_t_4); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 175; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":176
+      /* "/home/cdyer/cdec/python/src/grammar.pxi":176
  *             if isinstance(s, NT):
  *                 e.append(NTRef(i))
  *                 i += 1             # <<<<<<<<<<<<<<
@@ -8009,7 +7886,7 @@ static int __pyx_pf_5_cdec_5MRule___init__(struct __pyx_obj_5_cdec_MRule *__pyx_
     }
     /*else*/ {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":178
+      /* "/home/cdyer/cdec/python/src/grammar.pxi":178
  *                 i += 1
  *             else:
  *                 e.append(s)             # <<<<<<<<<<<<<<
@@ -8022,7 +7899,7 @@ static int __pyx_pf_5_cdec_5MRule___init__(struct __pyx_obj_5_cdec_MRule *__pyx_
   }
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":179
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":179
  *             else:
  *                 e.append(s)
  *         super(MRule, self).__init__(lhs, rhs, e, scores, a)             # <<<<<<<<<<<<<<
@@ -8090,7 +7967,7 @@ static void __pyx_pw_5_cdec_7Grammar_1__dealloc__(PyObject *__pyx_v_self) {
   __Pyx_RefNannyFinishContext();
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":184
+/* "/home/cdyer/cdec/python/src/grammar.pxi":184
  *     cdef shared_ptr[grammar.Grammar]* grammar
  * 
  *     def __dealloc__(self):             # <<<<<<<<<<<<<<
@@ -8102,7 +7979,7 @@ static void __pyx_pf_5_cdec_7Grammar___dealloc__(CYTHON_UNUSED struct __pyx_obj_
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__dealloc__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":185
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":185
  * 
  *     def __dealloc__(self):
  *         del self.grammar             # <<<<<<<<<<<<<<
@@ -8126,7 +8003,7 @@ static PyObject *__pyx_pw_5_cdec_7Grammar_3__iter__(PyObject *__pyx_v_self) {
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":187
+/* "/home/cdyer/cdec/python/src/grammar.pxi":187
  *         del self.grammar
  * 
  *     def __iter__(self):             # <<<<<<<<<<<<<<
@@ -8189,7 +8066,7 @@ static PyObject *__pyx_gb_5_cdec_7Grammar_4generator3(__pyx_GeneratorObject *__p
   __pyx_L3_first_run:;
   if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 187; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":188
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":188
  * 
  *     def __iter__(self):
  *         cdef grammar.const_GrammarIter* root = self.grammar.get().GetRoot()             # <<<<<<<<<<<<<<
@@ -8198,7 +8075,7 @@ static PyObject *__pyx_gb_5_cdec_7Grammar_4generator3(__pyx_GeneratorObject *__p
  */
   __pyx_cur_scope->__pyx_v_root = __pyx_cur_scope->__pyx_v_self->grammar->get()->GetRoot();
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":189
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":189
  *     def __iter__(self):
  *         cdef grammar.const_GrammarIter* root = self.grammar.get().GetRoot()
  *         cdef grammar.const_RuleBin* rbin = root.GetRules()             # <<<<<<<<<<<<<<
@@ -8207,7 +8084,7 @@ static PyObject *__pyx_gb_5_cdec_7Grammar_4generator3(__pyx_GeneratorObject *__p
  */
   __pyx_cur_scope->__pyx_v_rbin = __pyx_cur_scope->__pyx_v_root->GetRules();
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":192
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":192
  *         cdef TRule trule
  *         cdef unsigned i
  *         for i in range(rbin.GetNumRules()):             # <<<<<<<<<<<<<<
@@ -8218,7 +8095,7 @@ static PyObject *__pyx_gb_5_cdec_7Grammar_4generator3(__pyx_GeneratorObject *__p
   for (__pyx_t_2 = 0; __pyx_t_2 < __pyx_t_1; __pyx_t_2+=1) {
     __pyx_cur_scope->__pyx_v_i = __pyx_t_2;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":193
+    /* "/home/cdyer/cdec/python/src/grammar.pxi":193
  *         cdef unsigned i
  *         for i in range(rbin.GetNumRules()):
  *             trule = TRule.__new__(TRule)             # <<<<<<<<<<<<<<
@@ -8234,7 +8111,7 @@ static PyObject *__pyx_gb_5_cdec_7Grammar_4generator3(__pyx_GeneratorObject *__p
     __pyx_cur_scope->__pyx_v_trule = ((struct __pyx_obj_5_cdec_TRule *)__pyx_t_3);
     __pyx_t_3 = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":194
+    /* "/home/cdyer/cdec/python/src/grammar.pxi":194
  *         for i in range(rbin.GetNumRules()):
  *             trule = TRule.__new__(TRule)
  *             trule.rule = new shared_ptr[grammar.TRule](rbin.GetIthRule(i))             # <<<<<<<<<<<<<<
@@ -8243,7 +8120,7 @@ static PyObject *__pyx_gb_5_cdec_7Grammar_4generator3(__pyx_GeneratorObject *__p
  */
     __pyx_cur_scope->__pyx_v_trule->rule = new boost::shared_ptr<TRule>(__pyx_cur_scope->__pyx_v_rbin->GetIthRule(__pyx_cur_scope->__pyx_v_i));
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":195
+    /* "/home/cdyer/cdec/python/src/grammar.pxi":195
  *             trule = TRule.__new__(TRule)
  *             trule.rule = new shared_ptr[grammar.TRule](rbin.GetIthRule(i))
  *             yield trule             # <<<<<<<<<<<<<<
@@ -8272,7 +8149,6 @@ static PyObject *__pyx_gb_5_cdec_7Grammar_4generator3(__pyx_GeneratorObject *__p
   __pyx_L0:;
   __Pyx_XDECREF(__pyx_r);
   __pyx_generator->resume_label = -1;
-  __Pyx_Generator_clear((PyObject*)__pyx_generator);
   __Pyx_RefNannyFinishContext();
   return NULL;
 }
@@ -8288,7 +8164,7 @@ static PyObject *__pyx_pw_5_cdec_7Grammar_4name_1__get__(PyObject *__pyx_v_self)
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":198
+/* "/home/cdyer/cdec/python/src/grammar.pxi":198
  * 
  *     property name:
  *         def __get__(self):             # <<<<<<<<<<<<<<
@@ -8301,7 +8177,7 @@ static PyObject *__pyx_pf_5_cdec_7Grammar_4name___get__(struct __pyx_obj_5_cdec_
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__get__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":199
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":199
  *     property name:
  *         def __get__(self):
  *             self.grammar.get().GetGrammarName().c_str()             # <<<<<<<<<<<<<<
@@ -8327,7 +8203,7 @@ static int __pyx_pw_5_cdec_7Grammar_4name_3__set__(PyObject *__pyx_v_self, PyObj
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":201
+/* "/home/cdyer/cdec/python/src/grammar.pxi":201
  *             self.grammar.get().GetGrammarName().c_str()
  * 
  *         def __set__(self, name):             # <<<<<<<<<<<<<<
@@ -8344,7 +8220,7 @@ static int __pyx_pf_5_cdec_7Grammar_4name_2__set__(struct __pyx_obj_5_cdec_Gramm
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__set__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":202
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":202
  * 
  *         def __set__(self, name):
  *             self.grammar.get().SetGrammarName(string(<char *>name))             # <<<<<<<<<<<<<<
@@ -8368,11 +8244,11 @@ static int __pyx_pf_5_cdec_7Grammar_4name_2__set__(struct __pyx_obj_5_cdec_Gramm
 static int __pyx_pw_5_cdec_11TextGrammar_1__cinit__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
 static int __pyx_pw_5_cdec_11TextGrammar_1__cinit__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_rules = 0;
+  static PyObject **__pyx_pyargnames[] = {&__pyx_n_s__rules,0};
   int __pyx_r;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__cinit__ (wrapper)", 0);
   {
-    static PyObject **__pyx_pyargnames[] = {&__pyx_n_s__rules,0};
     PyObject* values[1] = {0};
     if (unlikely(__pyx_kwds)) {
       Py_ssize_t kw_args;
@@ -8385,7 +8261,8 @@ static int __pyx_pw_5_cdec_11TextGrammar_1__cinit__(PyObject *__pyx_v_self, PyOb
       kw_args = PyDict_Size(__pyx_kwds);
       switch (pos_args) {
         case  0:
-        if (likely((values[0] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__rules)) != 0)) kw_args--;
+        values[0] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__rules);
+        if (likely(values[0])) kw_args--;
         else goto __pyx_L5_argtuple_error;
       }
       if (unlikely(kw_args > 0)) {
@@ -8411,7 +8288,7 @@ static int __pyx_pw_5_cdec_11TextGrammar_1__cinit__(PyObject *__pyx_v_self, PyOb
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":205
+/* "/home/cdyer/cdec/python/src/grammar.pxi":205
  * 
  * cdef class TextGrammar(Grammar):
  *     def __cinit__(self, rules):             # <<<<<<<<<<<<<<
@@ -8436,7 +8313,7 @@ static int __pyx_pf_5_cdec_11TextGrammar___cinit__(struct __pyx_obj_5_cdec_TextG
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__cinit__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":206
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":206
  * cdef class TextGrammar(Grammar):
  *     def __cinit__(self, rules):
  *         self.grammar = new shared_ptr[grammar.Grammar](new grammar.TextGrammar())             # <<<<<<<<<<<<<<
@@ -8445,7 +8322,7 @@ static int __pyx_pf_5_cdec_11TextGrammar___cinit__(struct __pyx_obj_5_cdec_TextG
  */
   __pyx_v_self->__pyx_base.grammar = new boost::shared_ptr<Grammar>(new TextGrammar());
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":207
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":207
  *     def __cinit__(self, rules):
  *         self.grammar = new shared_ptr[grammar.Grammar](new grammar.TextGrammar())
  *         cdef grammar.TextGrammar* _g = <grammar.TextGrammar*> self.grammar.get()             # <<<<<<<<<<<<<<
@@ -8454,7 +8331,7 @@ static int __pyx_pf_5_cdec_11TextGrammar___cinit__(struct __pyx_obj_5_cdec_TextG
  */
   __pyx_v__g = ((TextGrammar *)__pyx_v_self->__pyx_base.grammar->get());
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":208
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":208
  *         self.grammar = new shared_ptr[grammar.Grammar](new grammar.TextGrammar())
  *         cdef grammar.TextGrammar* _g = <grammar.TextGrammar*> self.grammar.get()
  *         for trule in rules:             # <<<<<<<<<<<<<<
@@ -8472,18 +8349,10 @@ static int __pyx_pf_5_cdec_11TextGrammar___cinit__(struct __pyx_obj_5_cdec_TextG
   for (;;) {
     if (!__pyx_t_3 && PyList_CheckExact(__pyx_t_1)) {
       if (__pyx_t_2 >= PyList_GET_SIZE(__pyx_t_1)) break;
-      #if CYTHON_COMPILING_IN_CPYTHON
       __pyx_t_4 = PyList_GET_ITEM(__pyx_t_1, __pyx_t_2); __Pyx_INCREF(__pyx_t_4); __pyx_t_2++;
-      #else
-      __pyx_t_4 = PySequence_ITEM(__pyx_t_1, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 208; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
-      #endif
     } else if (!__pyx_t_3 && PyTuple_CheckExact(__pyx_t_1)) {
       if (__pyx_t_2 >= PyTuple_GET_SIZE(__pyx_t_1)) break;
-      #if CYTHON_COMPILING_IN_CPYTHON
       __pyx_t_4 = PyTuple_GET_ITEM(__pyx_t_1, __pyx_t_2); __Pyx_INCREF(__pyx_t_4); __pyx_t_2++;
-      #else
-      __pyx_t_4 = PySequence_ITEM(__pyx_t_1, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 208; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
-      #endif
     } else {
       __pyx_t_4 = __pyx_t_3(__pyx_t_1);
       if (unlikely(!__pyx_t_4)) {
@@ -8499,7 +8368,7 @@ static int __pyx_pf_5_cdec_11TextGrammar___cinit__(struct __pyx_obj_5_cdec_TextG
     __pyx_v_trule = __pyx_t_4;
     __pyx_t_4 = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":209
+    /* "/home/cdyer/cdec/python/src/grammar.pxi":209
  *         cdef grammar.TextGrammar* _g = <grammar.TextGrammar*> self.grammar.get()
  *         for trule in rules:
  *             if isinstance(trule, _sa.Rule):             # <<<<<<<<<<<<<<
@@ -8512,7 +8381,7 @@ static int __pyx_pf_5_cdec_11TextGrammar___cinit__(struct __pyx_obj_5_cdec_TextG
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     if (__pyx_t_5) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":210
+      /* "/home/cdyer/cdec/python/src/grammar.pxi":210
  *         for trule in rules:
  *             if isinstance(trule, _sa.Rule):
  *                 trule = convert_rule(trule)             # <<<<<<<<<<<<<<
@@ -8531,7 +8400,7 @@ static int __pyx_pf_5_cdec_11TextGrammar___cinit__(struct __pyx_obj_5_cdec_TextG
       goto __pyx_L5;
     }
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":211
+    /* "/home/cdyer/cdec/python/src/grammar.pxi":211
  *             if isinstance(trule, _sa.Rule):
  *                 trule = convert_rule(trule)
  *             elif not isinstance(trule, TRule):             # <<<<<<<<<<<<<<
@@ -8545,7 +8414,7 @@ static int __pyx_pf_5_cdec_11TextGrammar___cinit__(struct __pyx_obj_5_cdec_TextG
     __pyx_t_7 = (!__pyx_t_5);
     if (__pyx_t_7) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":212
+      /* "/home/cdyer/cdec/python/src/grammar.pxi":212
  *                 trule = convert_rule(trule)
  *             elif not isinstance(trule, TRule):
  *                 raise ValueError('the grammar should contain TRule objects')             # <<<<<<<<<<<<<<
@@ -8560,7 +8429,7 @@ static int __pyx_pf_5_cdec_11TextGrammar___cinit__(struct __pyx_obj_5_cdec_TextG
     }
     __pyx_L5:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":213
+    /* "/home/cdyer/cdec/python/src/grammar.pxi":213
  *             elif not isinstance(trule, TRule):
  *                 raise ValueError('the grammar should contain TRule objects')
  *             _g.AddRule((<TRule> trule).rule[0])             # <<<<<<<<<<<<<<
@@ -8592,7 +8461,7 @@ static void __pyx_pw_5_cdec_10Hypergraph_1__dealloc__(PyObject *__pyx_v_self) {
   __Pyx_RefNannyFinishContext();
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":8
+/* "/home/cdyer/cdec/python/src/hypergraph.pxi":8
  *     cdef MT19937* rng
  * 
  *     def __dealloc__(self):             # <<<<<<<<<<<<<<
@@ -8605,7 +8474,7 @@ static void __pyx_pf_5_cdec_10Hypergraph___dealloc__(struct __pyx_obj_5_cdec_Hyp
   int __pyx_t_1;
   __Pyx_RefNannySetupContext("__dealloc__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":9
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":9
  * 
  *     def __dealloc__(self):
  *         del self.hg             # <<<<<<<<<<<<<<
@@ -8614,7 +8483,7 @@ 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/cdyer/cdec/python/src/hypergraph.pxi":10
  *     def __dealloc__(self):
  *         del self.hg
  *         if self.rng != NULL:             # <<<<<<<<<<<<<<
@@ -8624,7 +8493,7 @@ static void __pyx_pf_5_cdec_10Hypergraph___dealloc__(struct __pyx_obj_5_cdec_Hyp
   __pyx_t_1 = (__pyx_v_self->rng != NULL);
   if (__pyx_t_1) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":11
+    /* "/home/cdyer/cdec/python/src/hypergraph.pxi":11
  *         del self.hg
  *         if self.rng != NULL:
  *             del self.rng             # <<<<<<<<<<<<<<
@@ -8650,7 +8519,7 @@ static PyObject *__pyx_pw_5_cdec_10Hypergraph_3viterbi(PyObject *__pyx_v_self, C
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":13
+/* "/home/cdyer/cdec/python/src/hypergraph.pxi":13
  *             del self.rng
  * 
  *     def viterbi(self):             # <<<<<<<<<<<<<<
@@ -8669,7 +8538,7 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_2viterbi(struct __pyx_obj_5_cdec_H
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("viterbi", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":15
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":15
  *     def viterbi(self):
  *         cdef vector[WordID] trans
  *         hypergraph.ViterbiESentence(self.hg[0], &trans)             # <<<<<<<<<<<<<<
@@ -8678,7 +8547,7 @@ 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":16
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":16
  *         cdef vector[WordID] trans
  *         hypergraph.ViterbiESentence(self.hg[0], &trans)
  *         return unicode(GetString(trans).c_str(), 'utf8')             # <<<<<<<<<<<<<<
@@ -8727,7 +8596,7 @@ static PyObject *__pyx_pw_5_cdec_10Hypergraph_5viterbi_trees(PyObject *__pyx_v_s
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":18
+/* "/home/cdyer/cdec/python/src/hypergraph.pxi":18
  *         return unicode(GetString(trans).c_str(), 'utf8')
  * 
  *     def viterbi_trees(self):             # <<<<<<<<<<<<<<
@@ -8747,7 +8616,7 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_4viterbi_trees(struct __pyx_obj_5_
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("viterbi_trees", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":19
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":19
  * 
  *     def viterbi_trees(self):
  *         f_tree = unicode(hypergraph.ViterbiFTree(self.hg[0]).c_str(), 'utf8')             # <<<<<<<<<<<<<<
@@ -8770,7 +8639,7 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_4viterbi_trees(struct __pyx_obj_5_
   __pyx_v_f_tree = ((PyObject*)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":20
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":20
  *     def viterbi_trees(self):
  *         f_tree = unicode(hypergraph.ViterbiFTree(self.hg[0]).c_str(), 'utf8')
  *         e_tree = unicode(hypergraph.ViterbiETree(self.hg[0]).c_str(), 'utf8')             # <<<<<<<<<<<<<<
@@ -8793,7 +8662,7 @@ 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":21
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":21
  *         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)             # <<<<<<<<<<<<<<
@@ -8839,7 +8708,7 @@ static PyObject *__pyx_pw_5_cdec_10Hypergraph_7viterbi_features(PyObject *__pyx_
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":23
+/* "/home/cdyer/cdec/python/src/hypergraph.pxi":23
  *         return (f_tree, e_tree)
  * 
  *     def viterbi_features(self):             # <<<<<<<<<<<<<<
@@ -8857,7 +8726,7 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_6viterbi_features(struct __pyx_obj
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("viterbi_features", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":24
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":24
  * 
  *     def viterbi_features(self):
  *         cdef SparseVector fmap = SparseVector.__new__(SparseVector)             # <<<<<<<<<<<<<<
@@ -8870,7 +8739,7 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_6viterbi_features(struct __pyx_obj
   __pyx_v_fmap = ((struct __pyx_obj_5_cdec_SparseVector *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":25
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":25
  *     def viterbi_features(self):
  *         cdef SparseVector fmap = SparseVector.__new__(SparseVector)
  *         fmap.vector = new FastSparseVector[weight_t](hypergraph.ViterbiFeatures(self.hg[0]))             # <<<<<<<<<<<<<<
@@ -8879,7 +8748,7 @@ 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":26
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":26
  *         cdef SparseVector fmap = SparseVector.__new__(SparseVector)
  *         fmap.vector = new FastSparseVector[weight_t](hypergraph.ViterbiFeatures(self.hg[0]))
  *         return fmap             # <<<<<<<<<<<<<<
@@ -8915,7 +8784,7 @@ static PyObject *__pyx_pw_5_cdec_10Hypergraph_9viterbi_joshua(PyObject *__pyx_v_
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":28
+/* "/home/cdyer/cdec/python/src/hypergraph.pxi":28
  *         return fmap
  * 
  *     def viterbi_joshua(self):             # <<<<<<<<<<<<<<
@@ -8933,7 +8802,7 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_8viterbi_joshua(struct __pyx_obj_5
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("viterbi_joshua", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":29
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":29
  * 
  *     def viterbi_joshua(self):
  *         return unicode(hypergraph.JoshuaVisualizationString(self.hg[0]).c_str(), 'utf8')             # <<<<<<<<<<<<<<
@@ -8983,7 +8852,7 @@ static PyObject *__pyx_pw_5_cdec_10Hypergraph_11kbest(PyObject *__pyx_v_self, Py
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":31
+/* "/home/cdyer/cdec/python/src/hypergraph.pxi":31
  *         return unicode(hypergraph.JoshuaVisualizationString(self.hg[0]).c_str(), 'utf8')
  * 
  *     def kbest(self, size):             # <<<<<<<<<<<<<<
@@ -9051,7 +8920,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_12generator4(__pyx_GeneratorObject
   __pyx_L3_first_run:;
   if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 31; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":32
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":32
  * 
  *     def kbest(self, size):
  *         cdef kbest.KBestDerivations[vector[WordID], kbest.ESentenceTraversal]* derivations = new kbest.KBestDerivations[vector[WordID], kbest.ESentenceTraversal](self.hg[0], size)             # <<<<<<<<<<<<<<
@@ -9061,7 +8930,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_12generator4(__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 = 32; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_cur_scope->__pyx_v_derivations = new KBest::KBestDerivations<std::vector<WordID>,ESentenceTraversal>((__pyx_cur_scope->__pyx_v_self->hg[0]), __pyx_t_1);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":35
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":35
  *         cdef kbest.KBestDerivations[vector[WordID], kbest.ESentenceTraversal].Derivation* derivation
  *         cdef unsigned k
  *         try:             # <<<<<<<<<<<<<<
@@ -9070,7 +8939,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_12generator4(__pyx_GeneratorObject
  */
   /*try:*/ {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":36
+    /* "/home/cdyer/cdec/python/src/hypergraph.pxi":36
  *         cdef unsigned k
  *         try:
  *             for k in range(size):             # <<<<<<<<<<<<<<
@@ -9081,7 +8950,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_12generator4(__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":37
+      /* "/home/cdyer/cdec/python/src/hypergraph.pxi":37
  *         try:
  *             for k in range(size):
  *                 derivation = derivations.LazyKthBest(self.hg.nodes_.size() - 1, k)             # <<<<<<<<<<<<<<
@@ -9090,7 +8959,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_12generator4(__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":38
+      /* "/home/cdyer/cdec/python/src/hypergraph.pxi":38
  *             for k in range(size):
  *                 derivation = derivations.LazyKthBest(self.hg.nodes_.size() - 1, k)
  *                 if not derivation: break             # <<<<<<<<<<<<<<
@@ -9104,7 +8973,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_12generator4(__pyx_GeneratorObject
       }
       __pyx_L9:;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":39
+      /* "/home/cdyer/cdec/python/src/hypergraph.pxi":39
  *                 derivation = derivations.LazyKthBest(self.hg.nodes_.size() - 1, k)
  *                 if not derivation: break
  *                 yield unicode(GetString(derivation._yield).c_str(), 'utf8')             # <<<<<<<<<<<<<<
@@ -9141,7 +9010,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_12generator4(__pyx_GeneratorObject
     __pyx_L8_break:;
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":41
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":41
  *                 yield unicode(GetString(derivation._yield).c_str(), 'utf8')
  *         finally:
  *             del derivations             # <<<<<<<<<<<<<<
@@ -9184,7 +9053,6 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_12generator4(__pyx_GeneratorObject
   __pyx_L0:;
   __Pyx_XDECREF(__pyx_r);
   __pyx_generator->resume_label = -1;
-  __Pyx_Generator_clear((PyObject*)__pyx_generator);
   __Pyx_RefNannyFinishContext();
   return NULL;
 }
@@ -9201,7 +9069,7 @@ static PyObject *__pyx_pw_5_cdec_10Hypergraph_14kbest_trees(PyObject *__pyx_v_se
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":43
+/* "/home/cdyer/cdec/python/src/hypergraph.pxi":43
  *             del derivations
  * 
  *     def kbest_trees(self, size):             # <<<<<<<<<<<<<<
@@ -9271,7 +9139,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_15generator5(__pyx_GeneratorObject
   __pyx_L3_first_run:;
   if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 43; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":44
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":44
  * 
  *     def kbest_trees(self, size):
  *         cdef kbest.KBestDerivations[vector[WordID], kbest.FTreeTraversal]* f_derivations = new kbest.KBestDerivations[vector[WordID], kbest.FTreeTraversal](self.hg[0], size)             # <<<<<<<<<<<<<<
@@ -9281,7 +9149,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_15generator5(__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 = 44; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_cur_scope->__pyx_v_f_derivations = new KBest::KBestDerivations<std::vector<WordID>,FTreeTraversal>((__pyx_cur_scope->__pyx_v_self->hg[0]), __pyx_t_1);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":46
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":46
  *         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)             # <<<<<<<<<<<<<<
@@ -9291,7 +9159,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_15generator5(__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 = 46; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_cur_scope->__pyx_v_e_derivations = new KBest::KBestDerivations<std::vector<WordID>,ETreeTraversal>((__pyx_cur_scope->__pyx_v_self->hg[0]), __pyx_t_1);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":49
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":49
  *         cdef kbest.KBestDerivations[vector[WordID], kbest.ETreeTraversal].Derivation* e_derivation
  *         cdef unsigned k
  *         try:             # <<<<<<<<<<<<<<
@@ -9300,7 +9168,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_15generator5(__pyx_GeneratorObject
  */
   /*try:*/ {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":50
+    /* "/home/cdyer/cdec/python/src/hypergraph.pxi":50
  *         cdef unsigned k
  *         try:
  *             for k in range(size):             # <<<<<<<<<<<<<<
@@ -9311,7 +9179,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_15generator5(__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":51
+      /* "/home/cdyer/cdec/python/src/hypergraph.pxi":51
  *         try:
  *             for k in range(size):
  *                 f_derivation = f_derivations.LazyKthBest(self.hg.nodes_.size() - 1, k)             # <<<<<<<<<<<<<<
@@ -9320,7 +9188,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_15generator5(__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":52
+      /* "/home/cdyer/cdec/python/src/hypergraph.pxi":52
  *             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)             # <<<<<<<<<<<<<<
@@ -9329,7 +9197,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_15generator5(__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":53
+      /* "/home/cdyer/cdec/python/src/hypergraph.pxi":53
  *                 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             # <<<<<<<<<<<<<<
@@ -9349,7 +9217,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_15generator5(__pyx_GeneratorObject
       }
       __pyx_L9:;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":54
+      /* "/home/cdyer/cdec/python/src/hypergraph.pxi":54
  *                 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')             # <<<<<<<<<<<<<<
@@ -9375,7 +9243,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_15generator5(__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":55
+      /* "/home/cdyer/cdec/python/src/hypergraph.pxi":55
  *                 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')             # <<<<<<<<<<<<<<
@@ -9401,7 +9269,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_15generator5(__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":56
+      /* "/home/cdyer/cdec/python/src/hypergraph.pxi":56
  *                 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)             # <<<<<<<<<<<<<<
@@ -9433,7 +9301,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_15generator5(__pyx_GeneratorObject
     __pyx_L8_break:;
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":58
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":58
  *                 yield (f_tree, e_tree)
  *         finally:
  *             del f_derivations             # <<<<<<<<<<<<<<
@@ -9457,7 +9325,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_15generator5(__pyx_GeneratorObject
     __pyx_L6:;
     delete __pyx_cur_scope->__pyx_v_f_derivations;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":59
+    /* "/home/cdyer/cdec/python/src/hypergraph.pxi":59
  *         finally:
  *             del f_derivations
  *             del e_derivations             # <<<<<<<<<<<<<<
@@ -9485,7 +9353,6 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_15generator5(__pyx_GeneratorObject
   __pyx_L0:;
   __Pyx_XDECREF(__pyx_r);
   __pyx_generator->resume_label = -1;
-  __Pyx_Generator_clear((PyObject*)__pyx_generator);
   __Pyx_RefNannyFinishContext();
   return NULL;
 }
@@ -9502,7 +9369,7 @@ static PyObject *__pyx_pw_5_cdec_10Hypergraph_17kbest_features(PyObject *__pyx_v
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":61
+/* "/home/cdyer/cdec/python/src/hypergraph.pxi":61
  *             del e_derivations
  * 
  *     def kbest_features(self, size):             # <<<<<<<<<<<<<<
@@ -9569,7 +9436,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_18generator6(__pyx_GeneratorObject
   __pyx_L3_first_run:;
   if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 61; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":62
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":62
  * 
  *     def kbest_features(self, size):
  *         cdef kbest.KBestDerivations[FastSparseVector[weight_t], kbest.FeatureVectorTraversal]* derivations = new kbest.KBestDerivations[FastSparseVector[weight_t], kbest.FeatureVectorTraversal](self.hg[0], size)             # <<<<<<<<<<<<<<
@@ -9579,7 +9446,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_18generator6(__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 = 62; __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":66
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":66
  *         cdef SparseVector fmap
  *         cdef unsigned k
  *         try:             # <<<<<<<<<<<<<<
@@ -9588,7 +9455,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_18generator6(__pyx_GeneratorObject
  */
   /*try:*/ {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":67
+    /* "/home/cdyer/cdec/python/src/hypergraph.pxi":67
  *         cdef unsigned k
  *         try:
  *             for k in range(size):             # <<<<<<<<<<<<<<
@@ -9599,7 +9466,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_18generator6(__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":68
+      /* "/home/cdyer/cdec/python/src/hypergraph.pxi":68
  *         try:
  *             for k in range(size):
  *                 derivation = derivations.LazyKthBest(self.hg.nodes_.size() - 1, k)             # <<<<<<<<<<<<<<
@@ -9608,7 +9475,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_18generator6(__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":69
+      /* "/home/cdyer/cdec/python/src/hypergraph.pxi":69
  *             for k in range(size):
  *                 derivation = derivations.LazyKthBest(self.hg.nodes_.size() - 1, k)
  *                 if not derivation: break             # <<<<<<<<<<<<<<
@@ -9622,7 +9489,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_18generator6(__pyx_GeneratorObject
       }
       __pyx_L9:;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":70
+      /* "/home/cdyer/cdec/python/src/hypergraph.pxi":70
  *                 derivation = derivations.LazyKthBest(self.hg.nodes_.size() - 1, k)
  *                 if not derivation: break
  *                 fmap = SparseVector.__new__(SparseVector)             # <<<<<<<<<<<<<<
@@ -9638,7 +9505,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_18generator6(__pyx_GeneratorObject
       __pyx_cur_scope->__pyx_v_fmap = ((struct __pyx_obj_5_cdec_SparseVector *)__pyx_t_4);
       __pyx_t_4 = 0;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":71
+      /* "/home/cdyer/cdec/python/src/hypergraph.pxi":71
  *                 if not derivation: break
  *                 fmap = SparseVector.__new__(SparseVector)
  *                 fmap.vector = new FastSparseVector[weight_t](derivation._yield)             # <<<<<<<<<<<<<<
@@ -9647,7 +9514,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_18generator6(__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":72
+      /* "/home/cdyer/cdec/python/src/hypergraph.pxi":72
  *                 fmap = SparseVector.__new__(SparseVector)
  *                 fmap.vector = new FastSparseVector[weight_t](derivation._yield)
  *                 yield fmap             # <<<<<<<<<<<<<<
@@ -9671,7 +9538,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_18generator6(__pyx_GeneratorObject
     __pyx_L8_break:;
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":74
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":74
  *                 yield fmap
  *         finally:
  *             del derivations             # <<<<<<<<<<<<<<
@@ -9712,7 +9579,6 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_18generator6(__pyx_GeneratorObject
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@@ -9739,7 +9605,7 @@ static PyObject *__pyx_pw_5_cdec_10Hypergraph_20sample(PyObject *__pyx_v_self, P
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":76
+/* "/home/cdyer/cdec/python/src/hypergraph.pxi":76
  *             del derivations
  * 
  *     def sample(self, unsigned n):             # <<<<<<<<<<<<<<
@@ -9789,11 +9655,10 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_21generator7(__pyx_GeneratorObject
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-  MT19937 *__pyx_t_2;
-  size_t __pyx_t_3;
-  unsigned int __pyx_t_4;
+  size_t __pyx_t_2;
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":77
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":77
  * 
  *     def sample(self, unsigned n):
  *         cdef vector[hypergraph.Hypothesis]* hypos = new vector[hypergraph.Hypothesis]()             # <<<<<<<<<<<<<<
@@ -9815,7 +9680,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_21generator7(__pyx_GeneratorObject
  */
   __pyx_cur_scope->__pyx_v_hypos = new std::vector<HypergraphSampler::Hypothesis>();
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":78
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":78
  *     def sample(self, unsigned n):
  *         cdef vector[hypergraph.Hypothesis]* hypos = new vector[hypergraph.Hypothesis]()
  *         if self.rng == NULL:             # <<<<<<<<<<<<<<
@@ -9825,20 +9690,19 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_21generator7(__pyx_GeneratorObject
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   if (__pyx_t_1) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":79
+    /* "/home/cdyer/cdec/python/src/hypergraph.pxi":79
  *         cdef vector[hypergraph.Hypothesis]* hypos = new vector[hypergraph.Hypothesis]()
  *         if self.rng == NULL:
  *             self.rng = new MT19937()             # <<<<<<<<<<<<<<
  *         hypergraph.sample_hypotheses(self.hg[0], n, self.rng, hypos)
  *         cdef unsigned k
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-    __pyx_cur_scope->__pyx_v_self->rng = __pyx_t_2;
+    __pyx_cur_scope->__pyx_v_self->rng = new MT19937();
     goto __pyx_L4;
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":80
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":80
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  *             self.rng = new MT19937()
  *         hypergraph.sample_hypotheses(self.hg[0], n, self.rng, hypos)             # <<<<<<<<<<<<<<
@@ -9847,7 +9711,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_21generator7(__pyx_GeneratorObject
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   HypergraphSampler::sample_hypotheses((__pyx_cur_scope->__pyx_v_self->hg[0]), __pyx_cur_scope->__pyx_v_n, __pyx_cur_scope->__pyx_v_self->rng, __pyx_cur_scope->__pyx_v_hypos);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":82
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":82
  *         hypergraph.sample_hypotheses(self.hg[0], n, self.rng, hypos)
  *         cdef unsigned k
  *         try:             # <<<<<<<<<<<<<<
@@ -9856,59 +9720,59 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_21generator7(__pyx_GeneratorObject
  */
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":83
+    /* "/home/cdyer/cdec/python/src/hypergraph.pxi":83
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  *         try:
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  *         finally:
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-      __pyx_cur_scope->__pyx_v_k = __pyx_t_4;
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-      /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":84
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":86
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  *         finally:
  *             del hypos             # <<<<<<<<<<<<<<
  * 
- *     def intersect(self, Lattice lat):
+ *     def sample_trees(self, unsigned n):
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 /* Python wrapper */
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 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":88
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-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":91
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":92
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":93
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":105
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":94
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":95
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+  __pyx_t_3 = __pyx_PyFloat_AsDouble(__pyx_v_density); if (unlikely((__pyx_t_3 == (double)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 108; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":97
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":98
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-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":100
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-static PyObject *__pyx_pf_5_cdec_10Hypergraph_26lattice(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self) {
+static PyObject *__pyx_pf_5_cdec_10Hypergraph_29lattice(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self) {
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":101
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":113
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":102
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":114
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+  __pyx_t_2 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_5_cdec_Lattice)), ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 114; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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 /* Python wrapper */
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-static PyObject *__pyx_pw_5_cdec_10Hypergraph_29reweight(PyObject *__pyx_v_self, PyObject *__pyx_v_weights) {
+static PyObject *__pyx_pw_5_cdec_10Hypergraph_32reweight(PyObject *__pyx_v_self, PyObject *__pyx_v_weights); /*proto*/
+static PyObject *__pyx_pw_5_cdec_10Hypergraph_32reweight(PyObject *__pyx_v_self, PyObject *__pyx_v_weights) {
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+  __pyx_r = __pyx_pf_5_cdec_10Hypergraph_31reweight(((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":104
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-static PyObject *__pyx_pf_5_cdec_10Hypergraph_28reweight(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self, PyObject *__pyx_v_weights) {
+static PyObject *__pyx_pf_5_cdec_10Hypergraph_31reweight(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":105
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":106
+    /* "/home/cdyer/cdec/python/src/hypergraph.pxi":118
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":107
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":119
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":108
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":110
+    /* "/home/cdyer/cdec/python/src/hypergraph.pxi":122
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+    __pyx_t_1 = PyObject_Call(__pyx_builtin_TypeError, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 122; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-    {__pyx_filename = __pyx_f[3]; __pyx_lineno = 110; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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+static PyObject *__pyx_gb_5_cdec_10Hypergraph_5edges_2generator9(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
 
 /* Python wrapper */
 static PyObject *__pyx_pw_5_cdec_10Hypergraph_5edges_1__get__(PyObject *__pyx_v_self); /*proto*/
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-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":113
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-  struct __pyx_obj_5_cdec___pyx_scope_struct_12___get__ *__pyx_cur_scope;
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+  __pyx_cur_scope = (struct __pyx_obj_5_cdec___pyx_scope_struct_13___get__ *)__pyx_ptype_5_cdec___pyx_scope_struct_13___get__->tp_new(__pyx_ptype_5_cdec___pyx_scope_struct_13___get__, __pyx_empty_tuple, NULL);
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+    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_5_cdec_10Hypergraph_5edges_2generator9, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 125; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-static PyObject *__pyx_gb_5_cdec_10Hypergraph_5edges_2generator8(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
+static PyObject *__pyx_gb_5_cdec_10Hypergraph_5edges_2generator9(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
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+  struct __pyx_obj_5_cdec___pyx_scope_struct_13___get__ *__pyx_cur_scope = ((struct __pyx_obj_5_cdec___pyx_scope_struct_13___get__ *)__pyx_generator->closure);
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-  if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 113; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 125; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":115
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":127
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":116
+    /* "/home/cdyer/cdec/python/src/hypergraph.pxi":128
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+    __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_5_cdec_HypergraphEdge)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 128; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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+    __pyx_t_4 = ((struct __pyx_vtabstruct_5_cdec_HypergraphEdge *)((struct __pyx_obj_5_cdec_HypergraphEdge *)__pyx_t_3)->__pyx_vtab)->init(((struct __pyx_obj_5_cdec_HypergraphEdge *)__pyx_t_3), __pyx_cur_scope->__pyx_v_self->hg, __pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 128; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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@@ -10510,7 +10604,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_5edges_2generator8(__pyx_Generator
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     __pyx_t_1 = __pyx_cur_scope->__pyx_t_0;
     __pyx_t_2 = __pyx_cur_scope->__pyx_t_1;
-    if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 116; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 128; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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@@ -10521,11 +10615,10 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_5edges_2generator8(__pyx_Generator
   __pyx_L0:;
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   __pyx_generator->resume_label = -1;
-  __Pyx_Generator_clear((PyObject*)__pyx_generator);
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 }
-static PyObject *__pyx_gb_5_cdec_10Hypergraph_5nodes_2generator9(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
+static PyObject *__pyx_gb_5_cdec_10Hypergraph_5nodes_2generator10(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
 
 /* Python wrapper */
 static PyObject *__pyx_pw_5_cdec_10Hypergraph_5nodes_1__get__(PyObject *__pyx_v_self); /*proto*/
@@ -10538,7 +10631,7 @@ static PyObject *__pyx_pw_5_cdec_10Hypergraph_5nodes_1__get__(PyObject *__pyx_v_
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 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":119
+/* "/home/cdyer/cdec/python/src/hypergraph.pxi":131
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  *     property nodes:
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@@ -10547,14 +10640,14 @@ static PyObject *__pyx_pw_5_cdec_10Hypergraph_5nodes_1__get__(PyObject *__pyx_v_
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 static PyObject *__pyx_pf_5_cdec_10Hypergraph_5nodes___get__(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_13___get__ *__pyx_cur_scope;
+  struct __pyx_obj_5_cdec___pyx_scope_struct_14___get__ *__pyx_cur_scope;
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+  __pyx_cur_scope = (struct __pyx_obj_5_cdec___pyx_scope_struct_14___get__ *)__pyx_ptype_5_cdec___pyx_scope_struct_14___get__->tp_new(__pyx_ptype_5_cdec___pyx_scope_struct_14___get__, __pyx_empty_tuple, NULL);
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+    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_5_cdec_10Hypergraph_5nodes_2generator10, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 131; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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 }
 
-static PyObject *__pyx_gb_5_cdec_10Hypergraph_5nodes_2generator9(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
+static PyObject *__pyx_gb_5_cdec_10Hypergraph_5nodes_2generator10(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
 {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_13___get__ *__pyx_cur_scope = ((struct __pyx_obj_5_cdec___pyx_scope_struct_13___get__ *)__pyx_generator->closure);
+  struct __pyx_obj_5_cdec___pyx_scope_struct_14___get__ *__pyx_cur_scope = ((struct __pyx_obj_5_cdec___pyx_scope_struct_14___get__ *)__pyx_generator->closure);
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   size_t __pyx_t_1;
   unsigned int __pyx_t_2;
@@ -10600,9 +10693,9 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_5nodes_2generator9(__pyx_Generator
     return NULL;
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-  if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 119; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 131; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":121
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":133
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@@ -10613,16 +10706,16 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_5nodes_2generator9(__pyx_Generator
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":122
+    /* "/home/cdyer/cdec/python/src/hypergraph.pxi":134
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  *     property goal:
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-    __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_5_cdec_HypergraphNode)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 122; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_5_cdec_HypergraphNode)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 134; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-    __pyx_t_4 = ((struct __pyx_vtabstruct_5_cdec_HypergraphNode *)((struct __pyx_obj_5_cdec_HypergraphNode *)__pyx_t_3)->__pyx_vtab)->init(((struct __pyx_obj_5_cdec_HypergraphNode *)__pyx_t_3), __pyx_cur_scope->__pyx_v_self->hg, __pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 122; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = ((struct __pyx_vtabstruct_5_cdec_HypergraphNode *)((struct __pyx_obj_5_cdec_HypergraphNode *)__pyx_t_3)->__pyx_vtab)->init(((struct __pyx_obj_5_cdec_HypergraphNode *)__pyx_t_3), __pyx_cur_scope->__pyx_v_self->hg, __pyx_cur_scope->__pyx_v_i); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 134; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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@@ -10637,7 +10730,7 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_5nodes_2generator9(__pyx_Generator
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     __pyx_t_1 = __pyx_cur_scope->__pyx_t_0;
     __pyx_t_2 = __pyx_cur_scope->__pyx_t_1;
-    if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 122; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 134; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   }
   PyErr_SetNone(PyExc_StopIteration);
   goto __pyx_L0;
@@ -10648,7 +10741,6 @@ static PyObject *__pyx_gb_5_cdec_10Hypergraph_5nodes_2generator9(__pyx_Generator
   __pyx_L0:;
   __Pyx_XDECREF(__pyx_r);
   __pyx_generator->resume_label = -1;
-  __Pyx_Generator_clear((PyObject*)__pyx_generator);
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 }
@@ -10664,7 +10756,7 @@ static PyObject *__pyx_pw_5_cdec_10Hypergraph_4goal_1__get__(PyObject *__pyx_v_s
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":125
+/* "/home/cdyer/cdec/python/src/hypergraph.pxi":137
  * 
  *     property goal:
  *         def __get__(self):             # <<<<<<<<<<<<<<
@@ -10682,7 +10774,7 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_4goal___get__(struct __pyx_obj_5_c
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   __Pyx_RefNannySetupContext("__get__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":126
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":138
  *     property goal:
  *         def __get__(self):
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@@ -10690,9 +10782,9 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_4goal___get__(struct __pyx_obj_5_c
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-  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_5_cdec_HypergraphNode)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 126; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_5_cdec_HypergraphNode)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 138; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = ((struct __pyx_vtabstruct_5_cdec_HypergraphNode *)((struct __pyx_obj_5_cdec_HypergraphNode *)__pyx_t_1)->__pyx_vtab)->init(((struct __pyx_obj_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 = 126; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = ((struct __pyx_vtabstruct_5_cdec_HypergraphNode *)((struct __pyx_obj_5_cdec_HypergraphNode *)__pyx_t_1)->__pyx_vtab)->init(((struct __pyx_obj_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 = 138; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
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@@ -10723,7 +10815,7 @@ static PyObject *__pyx_pw_5_cdec_10Hypergraph_6npaths_1__get__(PyObject *__pyx_v
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":129
+/* "/home/cdyer/cdec/python/src/hypergraph.pxi":141
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  *     property npaths:
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":130
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":142
  *     property npaths:
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@@ -10748,7 +10840,7 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_6npaths___get__(struct __pyx_obj_5
  *     def inside_outside(self):
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   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = PyFloat_FromDouble(__pyx_v_self->hg->NumberOfPaths()); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 130; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyFloat_FromDouble(__pyx_v_self->hg->NumberOfPaths()); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 142; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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@@ -10767,17 +10859,17 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_6npaths___get__(struct __pyx_obj_5
 }
 
 /* Python wrapper */
-static PyObject *__pyx_pw_5_cdec_10Hypergraph_31inside_outside(PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *unused); /*proto*/
-static PyObject *__pyx_pw_5_cdec_10Hypergraph_31inside_outside(PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *unused) {
+static PyObject *__pyx_pw_5_cdec_10Hypergraph_34inside_outside(PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *unused); /*proto*/
+static PyObject *__pyx_pw_5_cdec_10Hypergraph_34inside_outside(PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *unused) {
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-  __pyx_r = __pyx_pf_5_cdec_10Hypergraph_30inside_outside(((struct __pyx_obj_5_cdec_Hypergraph *)__pyx_v_self));
+  __pyx_r = __pyx_pf_5_cdec_10Hypergraph_33inside_outside(((struct __pyx_obj_5_cdec_Hypergraph *)__pyx_v_self));
   __Pyx_RefNannyFinishContext();
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":132
+/* "/home/cdyer/cdec/python/src/hypergraph.pxi":144
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  */
 
-static PyObject *__pyx_pf_5_cdec_10Hypergraph_30inside_outside(struct __pyx_obj_5_cdec_Hypergraph *__pyx_v_self) {
+static PyObject *__pyx_pf_5_cdec_10Hypergraph_33inside_outside(struct __pyx_obj_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;
@@ -10801,7 +10893,7 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_30inside_outside(struct __pyx_obj_
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   __Pyx_RefNannySetupContext("inside_outside", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":133
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":145
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  *     def inside_outside(self):
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@@ -10810,7 +10902,7 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_30inside_outside(struct __pyx_obj_
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   __pyx_v_result = new FastSparseVector<prob_t>();
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":134
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":146
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":135
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":147
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  *         cdef prob_t z = hypergraph.InsideOutside(self.hg[0], result)
  *         result[0] /= z             # <<<<<<<<<<<<<<
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  */
   (__pyx_v_result[0]) /= __pyx_v_z;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":136
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":148
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  *         result[0] /= z
  *         cdef SparseVector vector = SparseVector.__new__(SparseVector)             # <<<<<<<<<<<<<<
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  *         cdef FastSparseVector[prob_t].const_iterator* it = new FastSparseVector[prob_t].const_iterator(result[0], False)
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-  __pyx_t_1 = __Pyx_tp_new(((PyObject*)__pyx_ptype_5_cdec_SparseVector)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 136; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_tp_new(((PyObject*)__pyx_ptype_5_cdec_SparseVector)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 148; __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 = 136; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (!(likely(__Pyx_TypeTest(__pyx_t_1, __pyx_ptype_5_cdec_SparseVector)))) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 148; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_v_vector = ((struct __pyx_obj_5_cdec_SparseVector *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":137
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":149
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":138
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":150
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  *         vector.vector = new FastSparseVector[double]()
  *         cdef FastSparseVector[prob_t].const_iterator* it = new FastSparseVector[prob_t].const_iterator(result[0], False)             # <<<<<<<<<<<<<<
@@ -10859,7 +10951,7 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_30inside_outside(struct __pyx_obj_
  */
   __pyx_v_it = new FastSparseVector<prob_t>::const_iterator((__pyx_v_result[0]), 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":140
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":152
  *         cdef FastSparseVector[prob_t].const_iterator* it = new FastSparseVector[prob_t].const_iterator(result[0], False)
  *         cdef unsigned i
  *         for i in range(result.size()):             # <<<<<<<<<<<<<<
@@ -10870,7 +10962,7 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_30inside_outside(struct __pyx_obj_
   for (__pyx_t_3 = 0; __pyx_t_3 < __pyx_t_2; __pyx_t_3+=1) {
     __pyx_v_i = __pyx_t_3;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":141
+    /* "/home/cdyer/cdec/python/src/hypergraph.pxi":153
  *         cdef unsigned i
  *         for i in range(result.size()):
  *             vector.vector.set_value(it[0].ptr().first, log(it[0].ptr().second))             # <<<<<<<<<<<<<<
@@ -10879,7 +10971,7 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_30inside_outside(struct __pyx_obj_
  */
     __pyx_v_vector->vector->set_value((__pyx_v_it[0]).operator->()->first, log((__pyx_v_it[0]).operator->()->second));
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":142
+    /* "/home/cdyer/cdec/python/src/hypergraph.pxi":154
  *         for i in range(result.size()):
  *             vector.vector.set_value(it[0].ptr().first, log(it[0].ptr().second))
  *             pinc(it[0]) # ++it             # <<<<<<<<<<<<<<
@@ -10889,7 +10981,7 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_30inside_outside(struct __pyx_obj_
     (++(__pyx_v_it[0]));
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":143
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":155
  *             vector.vector.set_value(it[0].ptr().first, log(it[0].ptr().second))
  *             pinc(it[0]) # ++it
  *         del it             # <<<<<<<<<<<<<<
@@ -10898,7 +10990,7 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_30inside_outside(struct __pyx_obj_
  */
   delete __pyx_v_it;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":144
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":156
  *             pinc(it[0]) # ++it
  *         del it
  *         del result             # <<<<<<<<<<<<<<
@@ -10907,7 +10999,7 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_30inside_outside(struct __pyx_obj_
  */
   delete __pyx_v_result;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":145
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":157
  *         del it
  *         del result
  *         return vector             # <<<<<<<<<<<<<<
@@ -10932,7 +11024,7 @@ static PyObject *__pyx_pf_5_cdec_10Hypergraph_30inside_outside(struct __pyx_obj_
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":152
+/* "/home/cdyer/cdec/python/src/hypergraph.pxi":164
  *     cdef public TRule trule
  * 
  *     cdef init(self, hypergraph.Hypergraph* hg, unsigned i):             # <<<<<<<<<<<<<<
@@ -10949,7 +11041,7 @@ static PyObject *__pyx_f_5_cdec_14HypergraphEdge_init(struct __pyx_obj_5_cdec_Hy
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("init", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":153
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":165
  * 
  *     cdef init(self, hypergraph.Hypergraph* hg, unsigned i):
  *         self.hg = hg             # <<<<<<<<<<<<<<
@@ -10958,7 +11050,7 @@ static PyObject *__pyx_f_5_cdec_14HypergraphEdge_init(struct __pyx_obj_5_cdec_Hy
  */
   __pyx_v_self->hg = __pyx_v_hg;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":154
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":166
  *     cdef init(self, hypergraph.Hypergraph* hg, unsigned i):
  *         self.hg = hg
  *         self.edge = &hg.edges_[i]             # <<<<<<<<<<<<<<
@@ -10967,23 +11059,23 @@ static PyObject *__pyx_f_5_cdec_14HypergraphEdge_init(struct __pyx_obj_5_cdec_Hy
  */
   __pyx_v_self->edge = (&(__pyx_v_hg->edges_[__pyx_v_i]));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":155
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":167
  *         self.hg = hg
  *         self.edge = &hg.edges_[i]
  *         self.trule = TRule.__new__(TRule)             # <<<<<<<<<<<<<<
  *         self.trule.rule = new shared_ptr[grammar.TRule](self.edge.rule_)
  *         return self
  */
-  __pyx_t_1 = __Pyx_tp_new(((PyObject*)__pyx_ptype_5_cdec_TRule)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 155; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_tp_new(((PyObject*)__pyx_ptype_5_cdec_TRule)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 167; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  if (!(likely(__Pyx_TypeTest(__pyx_t_1, __pyx_ptype_5_cdec_TRule)))) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 155; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (!(likely(__Pyx_TypeTest(__pyx_t_1, __pyx_ptype_5_cdec_TRule)))) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 167; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GIVEREF(__pyx_t_1);
   __Pyx_GOTREF(__pyx_v_self->trule);
   __Pyx_DECREF(((PyObject *)__pyx_v_self->trule));
   __pyx_v_self->trule = ((struct __pyx_obj_5_cdec_TRule *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":156
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":168
  *         self.edge = &hg.edges_[i]
  *         self.trule = TRule.__new__(TRule)
  *         self.trule.rule = new shared_ptr[grammar.TRule](self.edge.rule_)             # <<<<<<<<<<<<<<
@@ -10992,7 +11084,7 @@ static PyObject *__pyx_f_5_cdec_14HypergraphEdge_init(struct __pyx_obj_5_cdec_Hy
  */
   __pyx_v_self->trule->rule = new boost::shared_ptr<TRule>(__pyx_v_self->edge->rule_);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":157
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":169
  *         self.trule = TRule.__new__(TRule)
  *         self.trule.rule = new shared_ptr[grammar.TRule](self.edge.rule_)
  *         return self             # <<<<<<<<<<<<<<
@@ -11027,7 +11119,7 @@ static Py_ssize_t __pyx_pw_5_cdec_14HypergraphEdge_1__len__(PyObject *__pyx_v_se
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":159
+/* "/home/cdyer/cdec/python/src/hypergraph.pxi":171
  *         return self
  * 
  *     def __len__(self):             # <<<<<<<<<<<<<<
@@ -11040,7 +11132,7 @@ static Py_ssize_t __pyx_pf_5_cdec_14HypergraphEdge___len__(struct __pyx_obj_5_cd
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__len__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":160
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":172
  * 
  *     def __len__(self):
  *         return self.edge.tail_nodes_.size()             # <<<<<<<<<<<<<<
@@ -11067,7 +11159,7 @@ static PyObject *__pyx_pw_5_cdec_14HypergraphEdge_9head_node_1__get__(PyObject *
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":163
+/* "/home/cdyer/cdec/python/src/hypergraph.pxi":175
  * 
  *     property head_node:
  *         def __get__(self):             # <<<<<<<<<<<<<<
@@ -11085,7 +11177,7 @@ static PyObject *__pyx_pf_5_cdec_14HypergraphEdge_9head_node___get__(struct __py
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__get__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":164
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":176
  *     property head_node:
  *         def __get__(self):
  *             return HypergraphNode().init(self.hg, self.edge.head_node_)             # <<<<<<<<<<<<<<
@@ -11093,9 +11185,9 @@ static PyObject *__pyx_pf_5_cdec_14HypergraphEdge_9head_node___get__(struct __py
  *     property tail_nodes:
  */
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_5_cdec_HypergraphNode)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 164; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_5_cdec_HypergraphNode)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 176; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = ((struct __pyx_vtabstruct_5_cdec_HypergraphNode *)((struct __pyx_obj_5_cdec_HypergraphNode *)__pyx_t_1)->__pyx_vtab)->init(((struct __pyx_obj_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 = 164; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = ((struct __pyx_vtabstruct_5_cdec_HypergraphNode *)((struct __pyx_obj_5_cdec_HypergraphNode *)__pyx_t_1)->__pyx_vtab)->init(((struct __pyx_obj_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 = 176; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __pyx_r = __pyx_t_2;
@@ -11114,7 +11206,7 @@ static PyObject *__pyx_pf_5_cdec_14HypergraphEdge_9head_node___get__(struct __py
   __Pyx_RefNannyFinishContext();
   return __pyx_r;
 }
-static PyObject *__pyx_gb_5_cdec_14HypergraphEdge_10tail_nodes_2generator10(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
+static PyObject *__pyx_gb_5_cdec_14HypergraphEdge_10tail_nodes_2generator11(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
 
 /* Python wrapper */
 static PyObject *__pyx_pw_5_cdec_14HypergraphEdge_10tail_nodes_1__get__(PyObject *__pyx_v_self); /*proto*/
@@ -11127,7 +11219,7 @@ static PyObject *__pyx_pw_5_cdec_14HypergraphEdge_10tail_nodes_1__get__(PyObject
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":167
+/* "/home/cdyer/cdec/python/src/hypergraph.pxi":179
  * 
  *     property tail_nodes:
  *         def __get__(self):             # <<<<<<<<<<<<<<
@@ -11136,14 +11228,14 @@ static PyObject *__pyx_pw_5_cdec_14HypergraphEdge_10tail_nodes_1__get__(PyObject
  */
 
 static PyObject *__pyx_pf_5_cdec_14HypergraphEdge_10tail_nodes___get__(struct __pyx_obj_5_cdec_HypergraphEdge *__pyx_v_self) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_14___get__ *__pyx_cur_scope;
+  struct __pyx_obj_5_cdec___pyx_scope_struct_15___get__ *__pyx_cur_scope;
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
   int __pyx_lineno = 0;
   const char *__pyx_filename = NULL;
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("__get__", 0);
-  __pyx_cur_scope = (struct __pyx_obj_5_cdec___pyx_scope_struct_14___get__ *)__pyx_ptype_5_cdec___pyx_scope_struct_14___get__->tp_new(__pyx_ptype_5_cdec___pyx_scope_struct_14___get__, __pyx_empty_tuple, NULL);
+  __pyx_cur_scope = (struct __pyx_obj_5_cdec___pyx_scope_struct_15___get__ *)__pyx_ptype_5_cdec___pyx_scope_struct_15___get__->tp_new(__pyx_ptype_5_cdec___pyx_scope_struct_15___get__, __pyx_empty_tuple, NULL);
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     return NULL;
@@ -11153,7 +11245,7 @@ static PyObject *__pyx_pf_5_cdec_14HypergraphEdge_10tail_nodes___get__(struct __
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   __Pyx_GIVEREF((PyObject *)__pyx_cur_scope->__pyx_v_self);
   {
-    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_5_cdec_14HypergraphEdge_10tail_nodes_2generator10, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 167; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_5_cdec_14HypergraphEdge_10tail_nodes_2generator11, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 179; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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@@ -11171,9 +11263,9 @@ static PyObject *__pyx_pf_5_cdec_14HypergraphEdge_10tail_nodes___get__(struct __
   return __pyx_r;
 }
 
-static PyObject *__pyx_gb_5_cdec_14HypergraphEdge_10tail_nodes_2generator10(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
+static PyObject *__pyx_gb_5_cdec_14HypergraphEdge_10tail_nodes_2generator11(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
 {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_14___get__ *__pyx_cur_scope = ((struct __pyx_obj_5_cdec___pyx_scope_struct_14___get__ *)__pyx_generator->closure);
+  struct __pyx_obj_5_cdec___pyx_scope_struct_15___get__ *__pyx_cur_scope = ((struct __pyx_obj_5_cdec___pyx_scope_struct_15___get__ *)__pyx_generator->closure);
   PyObject *__pyx_r = NULL;
   unsigned int __pyx_t_1;
   unsigned int __pyx_t_2;
@@ -11189,9 +11281,9 @@ static PyObject *__pyx_gb_5_cdec_14HypergraphEdge_10tail_nodes_2generator10(__py
     return NULL;
   }
   __pyx_L3_first_run:;
-  if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 167; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 179; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":169
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":181
  *         def __get__(self):
  *             cdef unsigned i
  *             for i in range(self.edge.tail_nodes_.size()):             # <<<<<<<<<<<<<<
@@ -11202,16 +11294,16 @@ static PyObject *__pyx_gb_5_cdec_14HypergraphEdge_10tail_nodes_2generator10(__py
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     __pyx_cur_scope->__pyx_v_i = __pyx_t_2;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":170
+    /* "/home/cdyer/cdec/python/src/hypergraph.pxi":182
  *             cdef unsigned i
  *             for i in range(self.edge.tail_nodes_.size()):
  *                 yield HypergraphNode().init(self.hg, self.edge.tail_nodes_[i])             # <<<<<<<<<<<<<<
  * 
  *     property span:
  */
-    __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_5_cdec_HypergraphNode)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 170; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_5_cdec_HypergraphNode)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 182; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_4 = ((struct __pyx_vtabstruct_5_cdec_HypergraphNode *)((struct __pyx_obj_5_cdec_HypergraphNode *)__pyx_t_3)->__pyx_vtab)->init(((struct __pyx_obj_5_cdec_HypergraphNode *)__pyx_t_3), __pyx_cur_scope->__pyx_v_self->hg, (__pyx_cur_scope->__pyx_v_self->edge->tail_nodes_[__pyx_cur_scope->__pyx_v_i])); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 170; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = ((struct __pyx_vtabstruct_5_cdec_HypergraphNode *)((struct __pyx_obj_5_cdec_HypergraphNode *)__pyx_t_3)->__pyx_vtab)->init(((struct __pyx_obj_5_cdec_HypergraphNode *)__pyx_t_3), __pyx_cur_scope->__pyx_v_self->hg, (__pyx_cur_scope->__pyx_v_self->edge->tail_nodes_[__pyx_cur_scope->__pyx_v_i])); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 182; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
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@@ -11226,7 +11318,7 @@ static PyObject *__pyx_gb_5_cdec_14HypergraphEdge_10tail_nodes_2generator10(__py
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     __pyx_t_1 = __pyx_cur_scope->__pyx_t_0;
     __pyx_t_2 = __pyx_cur_scope->__pyx_t_1;
-    if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 170; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 182; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   }
   PyErr_SetNone(PyExc_StopIteration);
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@@ -11237,7 +11329,6 @@ static PyObject *__pyx_gb_5_cdec_14HypergraphEdge_10tail_nodes_2generator10(__py
   __pyx_L0:;
   __Pyx_XDECREF(__pyx_r);
   __pyx_generator->resume_label = -1;
-  __Pyx_Generator_clear((PyObject*)__pyx_generator);
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   return NULL;
 }
@@ -11253,7 +11344,7 @@ static PyObject *__pyx_pw_5_cdec_14HypergraphEdge_4span_1__get__(PyObject *__pyx
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":173
+/* "/home/cdyer/cdec/python/src/hypergraph.pxi":185
  * 
  *     property span:
  *         def __get__(self):             # <<<<<<<<<<<<<<
@@ -11272,7 +11363,7 @@ static PyObject *__pyx_pf_5_cdec_14HypergraphEdge_4span___get__(struct __pyx_obj
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":174
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":186
  *     property span:
  *         def __get__(self):
  *             return (self.edge.i_, self.edge.j_)             # <<<<<<<<<<<<<<
@@ -11280,11 +11371,11 @@ static PyObject *__pyx_pf_5_cdec_14HypergraphEdge_4span___get__(struct __pyx_obj
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   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = PyInt_FromLong(__pyx_v_self->edge->i_); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 174; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyInt_FromLong(__pyx_v_self->edge->i_); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 186; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = PyInt_FromLong(__pyx_v_self->edge->j_); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 174; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyInt_FromLong(__pyx_v_self->edge->j_); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 186; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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+  __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 186; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":177
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":178
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":190
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+  __pyx_t_1 = __Pyx_tp_new(((PyObject*)__pyx_ptype_5_cdec_SparseVector)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 190; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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+  if (!(likely(__Pyx_TypeTest(__pyx_t_1, __pyx_ptype_5_cdec_SparseVector)))) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 190; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":179
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":191
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":180
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":192
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 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":183
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":184
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":196
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+  __pyx_t_1 = PyFloat_FromDouble(__pyx_v_self->edge->edge_prob_.as_float()); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 196; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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+  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_x), __pyx_ptype_5_cdec_HypergraphEdge, 1, "x", 0))) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 198; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_y), __pyx_ptype_5_cdec_HypergraphEdge, 1, "y", 0))) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 198; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":186
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":189
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":187
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":188
+    /* "/home/cdyer/cdec/python/src/hypergraph.pxi":200
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":189
+    /* "/home/cdyer/cdec/python/src/hypergraph.pxi":201
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":190
+    /* "/home/cdyer/cdec/python/src/hypergraph.pxi":202
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+    __pyx_t_1 = PyObject_RichCompare(((PyObject *)__pyx_v_x), ((PyObject *)__pyx_v_y), Py_EQ); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 202; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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+    __pyx_t_1 = __Pyx_PyBool_FromLong((!__pyx_t_2)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 202; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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@@ -11537,18 +11628,18 @@ static PyObject *__pyx_pf_5_cdec_14HypergraphEdge_2__richcmp__(struct __pyx_obj_
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":191
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":203
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+  __pyx_t_1 = PyObject_Call(__pyx_builtin_NotImplemented, ((PyObject *)__pyx_k_tuple_18), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 203; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-  {__pyx_filename = __pyx_f[3]; __pyx_lineno = 191; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  {__pyx_filename = __pyx_f[3]; __pyx_lineno = 203; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
   __pyx_r = Py_None; __Pyx_INCREF(Py_None);
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 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":150
+/* "/home/cdyer/cdec/python/src/hypergraph.pxi":162
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+  if (!(likely(((__pyx_v_value) == Py_None) || likely(__Pyx_TypeTest(__pyx_v_value, __pyx_ptype_5_cdec_TRule))))) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 162; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":197
+/* "/home/cdyer/cdec/python/src/hypergraph.pxi":209
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":198
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":199
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":200
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":212
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 /* Python wrapper */
 static PyObject *__pyx_pw_5_cdec_14HypergraphNode_8in_edges_1__get__(PyObject *__pyx_v_self); /*proto*/
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-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":203
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+  struct __pyx_obj_5_cdec___pyx_scope_struct_16___get__ *__pyx_cur_scope = ((struct __pyx_obj_5_cdec___pyx_scope_struct_16___get__ *)__pyx_generator->closure);
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   size_t __pyx_t_1;
   unsigned int __pyx_t_2;
@@ -11782,9 +11873,9 @@ static PyObject *__pyx_gb_5_cdec_14HypergraphNode_8in_edges_2generator11(__pyx_G
     return NULL;
   }
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-  if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 203; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 215; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":205
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":217
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":206
+    /* "/home/cdyer/cdec/python/src/hypergraph.pxi":218
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  *     property out_edges:
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-    __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_5_cdec_HypergraphEdge)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 206; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_5_cdec_HypergraphEdge)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 218; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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+    __pyx_t_4 = ((struct __pyx_vtabstruct_5_cdec_HypergraphEdge *)((struct __pyx_obj_5_cdec_HypergraphEdge *)__pyx_t_3)->__pyx_vtab)->init(((struct __pyx_obj_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 = 218; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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@@ -11819,7 +11910,7 @@ static PyObject *__pyx_gb_5_cdec_14HypergraphNode_8in_edges_2generator11(__pyx_G
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-    if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 206; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 218; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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@@ -11830,11 +11921,10 @@ static PyObject *__pyx_gb_5_cdec_14HypergraphNode_8in_edges_2generator11(__pyx_G
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-  __Pyx_Generator_clear((PyObject*)__pyx_generator);
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 }
-static PyObject *__pyx_gb_5_cdec_14HypergraphNode_9out_edges_2generator12(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
+static PyObject *__pyx_gb_5_cdec_14HypergraphNode_9out_edges_2generator13(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
 
 /* Python wrapper */
 static PyObject *__pyx_pw_5_cdec_14HypergraphNode_9out_edges_1__get__(PyObject *__pyx_v_self); /*proto*/
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 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":209
+/* "/home/cdyer/cdec/python/src/hypergraph.pxi":221
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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_16___get__ *__pyx_cur_scope;
+  struct __pyx_obj_5_cdec___pyx_scope_struct_17___get__ *__pyx_cur_scope;
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+  __pyx_cur_scope = (struct __pyx_obj_5_cdec___pyx_scope_struct_17___get__ *)__pyx_ptype_5_cdec___pyx_scope_struct_17___get__->tp_new(__pyx_ptype_5_cdec___pyx_scope_struct_17___get__, __pyx_empty_tuple, NULL);
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+    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_5_cdec_14HypergraphNode_9out_edges_2generator13, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 221; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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 }
 
-static PyObject *__pyx_gb_5_cdec_14HypergraphNode_9out_edges_2generator12(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
+static PyObject *__pyx_gb_5_cdec_14HypergraphNode_9out_edges_2generator13(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
 {
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+  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);
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   unsigned int __pyx_t_2;
@@ -11909,9 +11999,9 @@ static PyObject *__pyx_gb_5_cdec_14HypergraphNode_9out_edges_2generator12(__pyx_
     return NULL;
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-  if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 209; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 221; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":211
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":223
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":212
+    /* "/home/cdyer/cdec/python/src/hypergraph.pxi":224
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  *     property span:
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-    __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_5_cdec_HypergraphEdge)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 212; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_5_cdec_HypergraphEdge)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 224; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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+    __pyx_t_4 = ((struct __pyx_vtabstruct_5_cdec_HypergraphEdge *)((struct __pyx_obj_5_cdec_HypergraphEdge *)__pyx_t_3)->__pyx_vtab)->init(((struct __pyx_obj_5_cdec_HypergraphEdge *)__pyx_t_3), __pyx_cur_scope->__pyx_v_self->hg, (__pyx_cur_scope->__pyx_v_self->node->out_edges_[__pyx_cur_scope->__pyx_v_i])); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 224; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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@@ -11946,7 +12036,7 @@ static PyObject *__pyx_gb_5_cdec_14HypergraphNode_9out_edges_2generator12(__pyx_
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     __pyx_t_2 = __pyx_cur_scope->__pyx_t_1;
-    if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 212; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (unlikely(!__pyx_sent_value)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 224; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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@@ -11957,7 +12047,6 @@ static PyObject *__pyx_gb_5_cdec_14HypergraphNode_9out_edges_2generator12(__pyx_
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-  __Pyx_Generator_clear((PyObject*)__pyx_generator);
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@@ -11973,7 +12062,7 @@ static PyObject *__pyx_pw_5_cdec_14HypergraphNode_4span_1__get__(PyObject *__pyx
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 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":215
+/* "/home/cdyer/cdec/python/src/hypergraph.pxi":227
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  *     property span:
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":216
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":228
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@@ -11999,12 +12088,12 @@ static PyObject *__pyx_pf_5_cdec_14HypergraphNode_4span___get__(struct __pyx_obj
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+  __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_v_self), __pyx_n_s__in_edges); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 228; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-  __pyx_t_2 = __Pyx_PyIter_Next(__pyx_t_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 216; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = __Pyx_PyIter_Next(__pyx_t_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 228; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
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+  __pyx_t_1 = PyObject_GetAttr(__pyx_t_2, __pyx_n_s__span); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 228; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":219
+/* "/home/cdyer/cdec/python/src/hypergraph.pxi":231
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  *     property cat:
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":220
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":232
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   if (__pyx_v_self->node->cat_) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":221
+    /* "/home/cdyer/cdec/python/src/hypergraph.pxi":233
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@@ -12069,7 +12158,7 @@ static PyObject *__pyx_pf_5_cdec_14HypergraphNode_3cat___get__(struct __pyx_obj_
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+    __pyx_t_1 = PyBytes_FromString(TD::Convert((-__pyx_v_self->node->cat_))); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 233; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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@@ -12096,8 +12185,8 @@ static PyObject *__pyx_pw_5_cdec_14HypergraphNode_1__richcmp__(PyObject *__pyx_v
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-  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_y), __pyx_ptype_5_cdec_HypergraphNode, 1, "y", 0))) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 223; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_x), __pyx_ptype_5_cdec_HypergraphNode, 1, "x", 0))) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 235; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_y), __pyx_ptype_5_cdec_HypergraphNode, 1, "y", 0))) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 235; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-/* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":223
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":226
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":224
+    /* "/home/cdyer/cdec/python/src/hypergraph.pxi":236
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     case 2:
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":225
+    /* "/home/cdyer/cdec/python/src/hypergraph.pxi":237
  *     def __richcmp__(HypergraphNode x, HypergraphNode y, int op):
  *         if op == 2: # ==
  *             return x.node == y.node             # <<<<<<<<<<<<<<
@@ -12151,14 +12240,14 @@ static PyObject *__pyx_pf_5_cdec_14HypergraphNode___richcmp__(struct __pyx_obj_5
  *             return not (x == y)
  */
     __Pyx_XDECREF(__pyx_r);
-    __pyx_t_1 = __Pyx_PyBool_FromLong((__pyx_v_x->node == __pyx_v_y->node)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 225; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = __Pyx_PyBool_FromLong((__pyx_v_x->node == __pyx_v_y->node)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 237; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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     __pyx_r = __pyx_t_1;
     __pyx_t_1 = 0;
     goto __pyx_L0;
     break;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":226
+    /* "/home/cdyer/cdec/python/src/hypergraph.pxi":238
  *         if op == 2: # ==
  *             return x.node == y.node
  *         elif op == 3: # !=             # <<<<<<<<<<<<<<
@@ -12167,18 +12256,18 @@ static PyObject *__pyx_pf_5_cdec_14HypergraphNode___richcmp__(struct __pyx_obj_5
  */
     case 3:
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":227
+    /* "/home/cdyer/cdec/python/src/hypergraph.pxi":239
  *             return x.node == y.node
  *         elif op == 3: # !=
  *             return not (x == y)             # <<<<<<<<<<<<<<
  *         raise NotImplemented('comparison not implemented for HypergraphNode')
  */
     __Pyx_XDECREF(__pyx_r);
-    __pyx_t_1 = PyObject_RichCompare(((PyObject *)__pyx_v_x), ((PyObject *)__pyx_v_y), Py_EQ); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 227; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyObject_RichCompare(((PyObject *)__pyx_v_x), ((PyObject *)__pyx_v_y), Py_EQ); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 239; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_2 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_2 < 0)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 227; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_2 < 0)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 239; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-    __pyx_t_1 = __Pyx_PyBool_FromLong((!__pyx_t_2)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 227; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = __Pyx_PyBool_FromLong((!__pyx_t_2)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 239; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __pyx_r = __pyx_t_1;
     __pyx_t_1 = 0;
@@ -12186,16 +12275,16 @@ static PyObject *__pyx_pf_5_cdec_14HypergraphNode___richcmp__(struct __pyx_obj_5
     break;
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":228
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":240
  *         elif op == 3: # !=
  *             return not (x == y)
  *         raise NotImplemented('comparison not implemented for HypergraphNode')             # <<<<<<<<<<<<<<
  */
-  __pyx_t_1 = PyObject_Call(__pyx_builtin_NotImplemented, ((PyObject *)__pyx_k_tuple_20), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 228; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Call(__pyx_builtin_NotImplemented, ((PyObject *)__pyx_k_tuple_20), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 240; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_Raise(__pyx_t_1, 0, 0, 0);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  {__pyx_filename = __pyx_f[3]; __pyx_lineno = 228; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  {__pyx_filename = __pyx_f[3]; __pyx_lineno = 240; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
   __pyx_r = Py_None; __Pyx_INCREF(Py_None);
   goto __pyx_L0;
@@ -12213,11 +12302,11 @@ static PyObject *__pyx_pf_5_cdec_14HypergraphNode___richcmp__(struct __pyx_obj_5
 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) {
   PyObject *__pyx_v_inp = 0;
+  static PyObject **__pyx_pyargnames[] = {&__pyx_n_s__inp,0};
   int __pyx_r;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__cinit__ (wrapper)", 0);
   {
-    static PyObject **__pyx_pyargnames[] = {&__pyx_n_s__inp,0};
     PyObject* values[1] = {0};
     if (unlikely(__pyx_kwds)) {
       Py_ssize_t kw_args;
@@ -12230,7 +12319,8 @@ static int __pyx_pw_5_cdec_7Lattice_1__cinit__(PyObject *__pyx_v_self, PyObject
       kw_args = PyDict_Size(__pyx_kwds);
       switch (pos_args) {
         case  0:
-        if (likely((values[0] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__inp)) != 0)) kw_args--;
+        values[0] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__inp);
+        if (likely(values[0])) kw_args--;
         else goto __pyx_L5_argtuple_error;
       }
       if (unlikely(kw_args > 0)) {
@@ -12256,7 +12346,7 @@ static int __pyx_pw_5_cdec_7Lattice_1__cinit__(PyObject *__pyx_v_self, PyObject
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":6
+/* "/home/cdyer/cdec/python/src/lattice.pxi":6
  *     cdef lattice.Lattice* lattice
  * 
  *     def __cinit__(self, inp):             # <<<<<<<<<<<<<<
@@ -12283,7 +12373,7 @@ static int __pyx_pf_5_cdec_7Lattice___cinit__(struct __pyx_obj_5_cdec_Lattice *_
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   __Pyx_INCREF(__pyx_v_inp);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":7
+  /* "/home/cdyer/cdec/python/src/lattice.pxi":7
  * 
  *     def __cinit__(self, inp):
  *         if isinstance(inp, tuple):             # <<<<<<<<<<<<<<
@@ -12296,7 +12386,7 @@ static int __pyx_pf_5_cdec_7Lattice___cinit__(struct __pyx_obj_5_cdec_Lattice *_
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   if (__pyx_t_2) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":8
+    /* "/home/cdyer/cdec/python/src/lattice.pxi":8
  *     def __cinit__(self, inp):
  *         if isinstance(inp, tuple):
  *             self.lattice = new lattice.Lattice(len(inp))             # <<<<<<<<<<<<<<
@@ -12306,7 +12396,7 @@ static int __pyx_pf_5_cdec_7Lattice___cinit__(struct __pyx_obj_5_cdec_Lattice *_
     __pyx_t_3 = PyObject_Length(__pyx_v_inp); if (unlikely(__pyx_t_3 == -1)) {__pyx_filename = __pyx_f[4]; __pyx_lineno = 8; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __pyx_v_self->lattice = new Lattice(__pyx_t_3);
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":9
+    /* "/home/cdyer/cdec/python/src/lattice.pxi":9
  *         if isinstance(inp, tuple):
  *             self.lattice = new lattice.Lattice(len(inp))
  *             for i, arcs in enumerate(inp):             # <<<<<<<<<<<<<<
@@ -12326,18 +12416,10 @@ static int __pyx_pf_5_cdec_7Lattice___cinit__(struct __pyx_obj_5_cdec_Lattice *_
     for (;;) {
       if (!__pyx_t_5 && PyList_CheckExact(__pyx_t_4)) {
         if (__pyx_t_3 >= PyList_GET_SIZE(__pyx_t_4)) break;
-        #if CYTHON_COMPILING_IN_CPYTHON
         __pyx_t_6 = PyList_GET_ITEM(__pyx_t_4, __pyx_t_3); __Pyx_INCREF(__pyx_t_6); __pyx_t_3++;
-        #else
-        __pyx_t_6 = PySequence_ITEM(__pyx_t_4, __pyx_t_3); __pyx_t_3++; if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[4]; __pyx_lineno = 9; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
-        #endif
       } else if (!__pyx_t_5 && PyTuple_CheckExact(__pyx_t_4)) {
         if (__pyx_t_3 >= PyTuple_GET_SIZE(__pyx_t_4)) break;
-        #if CYTHON_COMPILING_IN_CPYTHON
         __pyx_t_6 = PyTuple_GET_ITEM(__pyx_t_4, __pyx_t_3); __Pyx_INCREF(__pyx_t_6); __pyx_t_3++;
-        #else
-        __pyx_t_6 = PySequence_ITEM(__pyx_t_4, __pyx_t_3); __pyx_t_3++; if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[4]; __pyx_lineno = 9; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
-        #endif
       } else {
         __pyx_t_6 = __pyx_t_5(__pyx_t_4);
         if (unlikely(!__pyx_t_6)) {
@@ -12361,7 +12443,7 @@ static int __pyx_pf_5_cdec_7Lattice___cinit__(struct __pyx_obj_5_cdec_Lattice *_
       __pyx_t_1 = __pyx_t_6;
       __pyx_t_6 = 0;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":10
+      /* "/home/cdyer/cdec/python/src/lattice.pxi":10
  *             self.lattice = new lattice.Lattice(len(inp))
  *             for i, arcs in enumerate(inp):
  *                 self[i] = arcs             # <<<<<<<<<<<<<<
@@ -12376,7 +12458,7 @@ static int __pyx_pf_5_cdec_7Lattice___cinit__(struct __pyx_obj_5_cdec_Lattice *_
   }
   /*else*/ {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":12
+    /* "/home/cdyer/cdec/python/src/lattice.pxi":12
  *                 self[i] = arcs
  *         else:
  *             if isinstance(inp, unicode):             # <<<<<<<<<<<<<<
@@ -12389,7 +12471,7 @@ static int __pyx_pf_5_cdec_7Lattice___cinit__(struct __pyx_obj_5_cdec_Lattice *_
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     if (__pyx_t_2) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":13
+      /* "/home/cdyer/cdec/python/src/lattice.pxi":13
  *         else:
  *             if isinstance(inp, unicode):
  *                 inp = inp.encode('utf8')             # <<<<<<<<<<<<<<
@@ -12408,7 +12490,7 @@ static int __pyx_pf_5_cdec_7Lattice___cinit__(struct __pyx_obj_5_cdec_Lattice *_
     }
     __pyx_L6:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":14
+    /* "/home/cdyer/cdec/python/src/lattice.pxi":14
  *             if isinstance(inp, unicode):
  *                 inp = inp.encode('utf8')
  *             if not isinstance(inp, str):             # <<<<<<<<<<<<<<
@@ -12422,7 +12504,7 @@ static int __pyx_pf_5_cdec_7Lattice___cinit__(struct __pyx_obj_5_cdec_Lattice *_
     __pyx_t_7 = (!__pyx_t_2);
     if (__pyx_t_7) {
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":15
+      /* "/home/cdyer/cdec/python/src/lattice.pxi":15
  *                 inp = inp.encode('utf8')
  *             if not isinstance(inp, str):
  *                 raise TypeError('Cannot create lattice from %s' % type(inp))             # <<<<<<<<<<<<<<
@@ -12446,7 +12528,7 @@ static int __pyx_pf_5_cdec_7Lattice___cinit__(struct __pyx_obj_5_cdec_Lattice *_
     }
     __pyx_L7:;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":16
+    /* "/home/cdyer/cdec/python/src/lattice.pxi":16
  *             if not isinstance(inp, str):
  *                 raise TypeError('Cannot create lattice from %s' % type(inp))
  *             self.lattice = new lattice.Lattice()             # <<<<<<<<<<<<<<
@@ -12455,7 +12537,7 @@ static int __pyx_pf_5_cdec_7Lattice___cinit__(struct __pyx_obj_5_cdec_Lattice *_
  */
     __pyx_v_self->lattice = new Lattice();
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":17
+    /* "/home/cdyer/cdec/python/src/lattice.pxi":17
  *                 raise TypeError('Cannot create lattice from %s' % type(inp))
  *             self.lattice = new lattice.Lattice()
  *             lattice.ConvertTextToLattice(string(<char *>inp), self.lattice)             # <<<<<<<<<<<<<<
@@ -12492,7 +12574,7 @@ static void __pyx_pw_5_cdec_7Lattice_3__dealloc__(PyObject *__pyx_v_self) {
   __Pyx_RefNannyFinishContext();
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":19
+/* "/home/cdyer/cdec/python/src/lattice.pxi":19
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  * 
  *     def __dealloc__(self):             # <<<<<<<<<<<<<<
@@ -12504,7 +12586,7 @@ static void __pyx_pf_5_cdec_7Lattice_2__dealloc__(CYTHON_UNUSED struct __pyx_obj
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   __Pyx_RefNannySetupContext("__dealloc__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":20
+  /* "/home/cdyer/cdec/python/src/lattice.pxi":20
  * 
  *     def __dealloc__(self):
  *         del self.lattice             # <<<<<<<<<<<<<<
@@ -12537,7 +12619,7 @@ static PyObject *__pyx_pw_5_cdec_7Lattice_5__getitem__(PyObject *__pyx_v_self, P
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":22
+/* "/home/cdyer/cdec/python/src/lattice.pxi":22
  *         del self.lattice
  * 
  *     def __getitem__(self, int index):             # <<<<<<<<<<<<<<
@@ -12567,7 +12649,7 @@ static PyObject *__pyx_pf_5_cdec_7Lattice_4__getitem__(struct __pyx_obj_5_cdec_L
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   __Pyx_RefNannySetupContext("__getitem__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":23
+  /* "/home/cdyer/cdec/python/src/lattice.pxi":23
  * 
  *     def __getitem__(self, int index):
  *         if not 0 <= index < len(self):             # <<<<<<<<<<<<<<
@@ -12582,7 +12664,7 @@ static PyObject *__pyx_pf_5_cdec_7Lattice_4__getitem__(struct __pyx_obj_5_cdec_L
   __pyx_t_3 = (!__pyx_t_1);
   if (__pyx_t_3) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":24
+    /* "/home/cdyer/cdec/python/src/lattice.pxi":24
  *     def __getitem__(self, int index):
  *         if not 0 <= index < len(self):
  *             raise IndexError('lattice index out of range')             # <<<<<<<<<<<<<<
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   }
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":25
+  /* "/home/cdyer/cdec/python/src/lattice.pxi":25
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  *             raise IndexError('lattice index out of range')
  *         arcs = []             # <<<<<<<<<<<<<<
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   __pyx_v_arcs = __pyx_t_4;
   __pyx_t_4 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":26
+  /* "/home/cdyer/cdec/python/src/lattice.pxi":26
  *             raise IndexError('lattice index out of range')
  *         arcs = []
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@@ -12619,7 +12701,7 @@ static PyObject *__pyx_pf_5_cdec_7Lattice_4__getitem__(struct __pyx_obj_5_cdec_L
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":29
+  /* "/home/cdyer/cdec/python/src/lattice.pxi":29
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  *         cdef unsigned i
  *         for i in range(arc_vector.size()):             # <<<<<<<<<<<<<<
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     __pyx_v_i = __pyx_t_6;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":30
+    /* "/home/cdyer/cdec/python/src/lattice.pxi":30
  *         cdef unsigned i
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  *             arc = &arc_vector[i]             # <<<<<<<<<<<<<<
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  */
     __pyx_v_arc = (&(__pyx_v_arc_vector[__pyx_v_i]));
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":31
+    /* "/home/cdyer/cdec/python/src/lattice.pxi":31
  *         for i in range(arc_vector.size()):
  *             arc = &arc_vector[i]
  *             label = unicode(TDConvert(arc.label), 'utf8')             # <<<<<<<<<<<<<<
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     __pyx_v_label = ((PyObject*)__pyx_t_4);
     __pyx_t_4 = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":32
+    /* "/home/cdyer/cdec/python/src/lattice.pxi":32
  *             arc = &arc_vector[i]
  *             label = unicode(TDConvert(arc.label), 'utf8')
  *             arcs.append((label, arc.cost, arc.dist2next))             # <<<<<<<<<<<<<<
@@ -12689,7 +12771,7 @@ static PyObject *__pyx_pf_5_cdec_7Lattice_4__getitem__(struct __pyx_obj_5_cdec_L
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   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":33
+  /* "/home/cdyer/cdec/python/src/lattice.pxi":33
  *             label = unicode(TDConvert(arc.label), 'utf8')
  *             arcs.append((label, arc.cost, arc.dist2next))
  *         return tuple(arcs)             # <<<<<<<<<<<<<<
@@ -12745,7 +12827,7 @@ static int __pyx_pw_5_cdec_7Lattice_7__setitem__(PyObject *__pyx_v_self, PyObjec
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":35
+/* "/home/cdyer/cdec/python/src/lattice.pxi":35
  *         return tuple(arcs)
  * 
  *     def __setitem__(self, int index, tuple arcs):             # <<<<<<<<<<<<<<
@@ -12778,7 +12860,7 @@ static int __pyx_pf_5_cdec_7Lattice_6__setitem__(struct __pyx_obj_5_cdec_Lattice
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   __Pyx_RefNannySetupContext("__setitem__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":36
+  /* "/home/cdyer/cdec/python/src/lattice.pxi":36
  * 
  *     def __setitem__(self, int index, tuple arcs):
  *         if not 0 <= index < len(self):             # <<<<<<<<<<<<<<
@@ -12793,7 +12875,7 @@ static int __pyx_pf_5_cdec_7Lattice_6__setitem__(struct __pyx_obj_5_cdec_Lattice
   __pyx_t_3 = (!__pyx_t_1);
   if (__pyx_t_3) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":37
+    /* "/home/cdyer/cdec/python/src/lattice.pxi":37
  *     def __setitem__(self, int index, tuple arcs):
  *         if not 0 <= index < len(self):
  *             raise IndexError('lattice index out of range')             # <<<<<<<<<<<<<<
@@ -12809,7 +12891,7 @@ static int __pyx_pf_5_cdec_7Lattice_6__setitem__(struct __pyx_obj_5_cdec_Lattice
   }
   __pyx_L3:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":39
+  /* "/home/cdyer/cdec/python/src/lattice.pxi":39
  *             raise IndexError('lattice index out of range')
  *         cdef lattice.LatticeArc* arc
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-    {__pyx_filename = __pyx_f[4]; __pyx_lineno = 39; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-      #if CYTHON_COMPILING_IN_CPYTHON
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+          if (PyTuple_GET_SIZE(sequence) > 3) __Pyx_RaiseTooManyValuesError(3);
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+          {__pyx_filename = __pyx_f[4]; __pyx_lineno = 39; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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+          if (PyList_GET_SIZE(sequence) > 3) __Pyx_RaiseTooManyValuesError(3);
+          else __Pyx_RaiseNeedMoreValuesError(PyList_GET_SIZE(sequence));
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":40
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":42
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":43
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":44
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-/* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":46
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 /* Python wrapper */
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+  __pyx_cur_scope = (struct __pyx_obj_5_cdec___pyx_scope_struct_20_lines *)__pyx_ptype_5_cdec___pyx_scope_struct_20_lines->tp_new(__pyx_ptype_5_cdec___pyx_scope_struct_20_lines, __pyx_empty_tuple, NULL);
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":59
+  /* "/home/cdyer/cdec/python/src/lattice.pxi":59
  *     def todot(self):
  *         def lines():
  *             yield 'digraph lattice {'             # <<<<<<<<<<<<<<
@@ -13310,7 +13379,7 @@ static PyObject *__pyx_gb_5_cdec_7Lattice_5todot_2generator19(__pyx_GeneratorObj
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":60
+  /* "/home/cdyer/cdec/python/src/lattice.pxi":60
  *         def lines():
  *             yield 'digraph lattice {'
  *             yield 'rankdir = LR;'             # <<<<<<<<<<<<<<
@@ -13327,7 +13396,7 @@ static PyObject *__pyx_gb_5_cdec_7Lattice_5todot_2generator19(__pyx_GeneratorObj
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":61
+  /* "/home/cdyer/cdec/python/src/lattice.pxi":61
  *             yield 'digraph lattice {'
  *             yield 'rankdir = LR;'
  *             yield 'node [shape=circle];'             # <<<<<<<<<<<<<<
@@ -13344,7 +13413,7 @@ static PyObject *__pyx_gb_5_cdec_7Lattice_5todot_2generator19(__pyx_GeneratorObj
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":62
+  /* "/home/cdyer/cdec/python/src/lattice.pxi":62
  *             yield 'rankdir = LR;'
  *             yield 'node [shape=circle];'
  *             for i in range(len(self)):             # <<<<<<<<<<<<<<
@@ -13378,18 +13447,10 @@ static PyObject *__pyx_gb_5_cdec_7Lattice_5todot_2generator19(__pyx_GeneratorObj
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-      #if CYTHON_COMPILING_IN_CPYTHON
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-      #endif
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-      #if CYTHON_COMPILING_IN_CPYTHON
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-      #else
-      __pyx_t_1 = PySequence_ITEM(__pyx_t_3, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[4]; __pyx_lineno = 62; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
-      #endif
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@@ -13407,7 +13468,7 @@ static PyObject *__pyx_gb_5_cdec_7Lattice_5todot_2generator19(__pyx_GeneratorObj
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     __pyx_t_1 = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":63
+    /* "/home/cdyer/cdec/python/src/lattice.pxi":63
  *             yield 'node [shape=circle];'
  *             for i in range(len(self)):
  *                 for label, weight, delta in self[i]:             # <<<<<<<<<<<<<<
@@ -13428,18 +13489,10 @@ static PyObject *__pyx_gb_5_cdec_7Lattice_5todot_2generator19(__pyx_GeneratorObj
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-        #if CYTHON_COMPILING_IN_CPYTHON
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-        #else
-        __pyx_t_1 = PySequence_ITEM(__pyx_t_5, __pyx_t_6); __pyx_t_6++; if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[4]; __pyx_lineno = 63; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
-        #endif
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-        #if CYTHON_COMPILING_IN_CPYTHON
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-        #else
-        __pyx_t_1 = PySequence_ITEM(__pyx_t_5, __pyx_t_6); __pyx_t_6++; if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[4]; __pyx_lineno = 63; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
-        #endif
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@@ -13453,22 +13506,21 @@ static PyObject *__pyx_gb_5_cdec_7Lattice_5todot_2generator19(__pyx_GeneratorObj
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-          {__pyx_filename = __pyx_f[4]; __pyx_lineno = 63; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        }
-        #if CYTHON_COMPILING_IN_CPYTHON
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+          if (unlikely(PyTuple_GET_SIZE(sequence) != 3)) {
+            if (PyTuple_GET_SIZE(sequence) > 3) __Pyx_RaiseTooManyValuesError(3);
+            else __Pyx_RaiseNeedMoreValuesError(PyTuple_GET_SIZE(sequence));
+            {__pyx_filename = __pyx_f[4]; __pyx_lineno = 63; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          }
           __pyx_t_8 = PyTuple_GET_ITEM(sequence, 0); 
           __pyx_t_9 = PyTuple_GET_ITEM(sequence, 1); 
           __pyx_t_10 = PyTuple_GET_ITEM(sequence, 2); 
         } else {
+          if (unlikely(PyList_GET_SIZE(sequence) != 3)) {
+            if (PyList_GET_SIZE(sequence) > 3) __Pyx_RaiseTooManyValuesError(3);
+            else __Pyx_RaiseNeedMoreValuesError(PyList_GET_SIZE(sequence));
+            {__pyx_filename = __pyx_f[4]; __pyx_lineno = 63; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          }
           __pyx_t_8 = PyList_GET_ITEM(sequence, 0); 
           __pyx_t_9 = PyList_GET_ITEM(sequence, 1); 
           __pyx_t_10 = PyList_GET_ITEM(sequence, 2); 
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-        #else
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-        __pyx_t_9 = PySequence_ITEM(sequence, 1); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[4]; __pyx_lineno = 63; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __pyx_t_10 = PySequence_ITEM(sequence, 2); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[4]; __pyx_lineno = 63; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        #endif
         __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-      } else
-      {
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@@ -13496,13 +13542,12 @@ static PyObject *__pyx_gb_5_cdec_7Lattice_5todot_2generator19(__pyx_GeneratorObj
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-        __pyx_t_12 = NULL;
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-        __pyx_t_12 = NULL;
-        if (__Pyx_IterFinish() == 0) __Pyx_RaiseNeedMoreValuesError(index);
+        if (PyErr_Occurred() && PyErr_ExceptionMatches(PyExc_StopIteration)) PyErr_Clear();
+        if (!PyErr_Occurred()) __Pyx_RaiseNeedMoreValuesError(index);
         {__pyx_filename = __pyx_f[4]; __pyx_lineno = 63; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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@@ -13522,7 +13567,7 @@ static PyObject *__pyx_gb_5_cdec_7Lattice_5todot_2generator19(__pyx_GeneratorObj
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       __pyx_t_10 = 0;
 
-      /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":64
+      /* "/home/cdyer/cdec/python/src/lattice.pxi":64
  *             for i in range(len(self)):
  *                 for label, weight, delta in self[i]:
  *                     yield '%d -> %d [label="%s"];' % (i, i+delta, label.replace('"', '\\"'))             # <<<<<<<<<<<<<<
@@ -13582,7 +13627,7 @@ static PyObject *__pyx_gb_5_cdec_7Lattice_5todot_2generator19(__pyx_GeneratorObj
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   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":65
+  /* "/home/cdyer/cdec/python/src/lattice.pxi":65
  *                 for label, weight, delta in self[i]:
  *                     yield '%d -> %d [label="%s"];' % (i, i+delta, label.replace('"', '\\"'))
  *             yield '%d [shape=doublecircle]' % len(self)             # <<<<<<<<<<<<<<
@@ -13608,7 +13653,7 @@ static PyObject *__pyx_gb_5_cdec_7Lattice_5todot_2generator19(__pyx_GeneratorObj
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":66
+  /* "/home/cdyer/cdec/python/src/lattice.pxi":66
  *                     yield '%d -> %d [label="%s"];' % (i, i+delta, label.replace('"', '\\"'))
  *             yield '%d [shape=doublecircle]' % len(self)
  *             yield '}'             # <<<<<<<<<<<<<<
@@ -13637,12 +13682,11 @@ static PyObject *__pyx_gb_5_cdec_7Lattice_5todot_2generator19(__pyx_GeneratorObj
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-/* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":57
+/* "/home/cdyer/cdec/python/src/lattice.pxi":57
  *             yield self[i]
  * 
  *     def todot(self):             # <<<<<<<<<<<<<<
@@ -13651,7 +13695,7 @@ static PyObject *__pyx_gb_5_cdec_7Lattice_5todot_2generator19(__pyx_GeneratorObj
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 static PyObject *__pyx_pf_5_cdec_7Lattice_15todot(struct __pyx_obj_5_cdec_Lattice *__pyx_v_self) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_18_todot *__pyx_cur_scope;
+  struct __pyx_obj_5_cdec___pyx_scope_struct_19_todot *__pyx_cur_scope;
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+  __pyx_cur_scope = (struct __pyx_obj_5_cdec___pyx_scope_struct_19_todot *)__pyx_ptype_5_cdec___pyx_scope_struct_19_todot->tp_new(__pyx_ptype_5_cdec___pyx_scope_struct_19_todot, __pyx_empty_tuple, NULL);
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   __Pyx_GIVEREF((PyObject *)__pyx_cur_scope->__pyx_v_self);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":58
+  /* "/home/cdyer/cdec/python/src/lattice.pxi":58
  * 
  *     def todot(self):
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   __pyx_v_lines = __pyx_t_1;
   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":67
+  /* "/home/cdyer/cdec/python/src/lattice.pxi":67
  *             yield '%d [shape=doublecircle]' % len(self)
  *             yield '}'
  *         return '\n'.join(lines()).encode('utf8')             # <<<<<<<<<<<<<<
@@ -13729,7 +13773,7 @@ static PyObject *__pyx_pf_5_cdec_7Lattice_15todot(struct __pyx_obj_5_cdec_Lattic
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 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":3
+/* "/home/cdyer/cdec/python/src/mteval.pxi":3
  * cimport mteval
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  * cdef SufficientStats as_stats(x, y):             # <<<<<<<<<<<<<<
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":4
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":4
  * 
  * cdef SufficientStats as_stats(x, y):
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":5
+    /* "/home/cdyer/cdec/python/src/mteval.pxi":5
  * cdef SufficientStats as_stats(x, y):
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":6
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":6
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":7
+    /* "/home/cdyer/cdec/python/src/mteval.pxi":7
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     __pyx_t_1 = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":8
+    /* "/home/cdyer/cdec/python/src/mteval.pxi":8
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  */
     __pyx_v_stats->stats = new SufficientStats();
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":9
+    /* "/home/cdyer/cdec/python/src/mteval.pxi":9
  *         stats = SufficientStats()
  *         stats.stats = new mteval.SufficientStats()
  *         stats.metric = (<SufficientStats> y).metric             # <<<<<<<<<<<<<<
@@ -13830,7 +13874,7 @@ static struct __pyx_obj_5_cdec_SufficientStats *__pyx_f_5_cdec_as_stats(PyObject
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":10
+    /* "/home/cdyer/cdec/python/src/mteval.pxi":10
  *         stats.stats = new mteval.SufficientStats()
  *         stats.metric = (<SufficientStats> y).metric
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@@ -13869,7 +13913,7 @@ static PyObject *__pyx_pw_5_cdec_9Candidate_5words_1__get__(PyObject *__pyx_v_se
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":17
+/* "/home/cdyer/cdec/python/src/mteval.pxi":17
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  *     property words:
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":18
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":18
  *     property words:
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   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":21
+/* "/home/cdyer/cdec/python/src/mteval.pxi":21
  * 
  *     property fmap:
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":22
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":22
  *     property fmap:
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   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":23
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":23
  *         def __get__(self):
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@@ -13979,7 +14023,7 @@ static PyObject *__pyx_pf_5_cdec_9Candidate_4fmap___get__(struct __pyx_obj_5_cde
  */
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":24
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":24
  *             cdef SparseVector fmap = SparseVector.__new__(SparseVector)
  *             fmap.vector = new FastSparseVector[weight_t](self.candidate.fmap)
  *             return fmap             # <<<<<<<<<<<<<<
@@ -14015,7 +14059,7 @@ static PyObject *__pyx_pw_5_cdec_9Candidate_5score_1__get__(PyObject *__pyx_v_se
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":14
+/* "/home/cdyer/cdec/python/src/mteval.pxi":14
  * cdef class Candidate:
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-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":30
+/* "/home/cdyer/cdec/python/src/mteval.pxi":30
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  * 
  *     def __dealloc__(self):             # <<<<<<<<<<<<<<
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":31
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":31
  * 
  *     def __dealloc__(self):
  *         del self.stats             # <<<<<<<<<<<<<<
@@ -14126,7 +14170,7 @@ static PyObject *__pyx_pw_5_cdec_15SufficientStats_5score_1__get__(PyObject *__p
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":34
+/* "/home/cdyer/cdec/python/src/mteval.pxi":34
  * 
  *     property score:
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":35
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":35
  *     property score:
  *         def __get__(self):
  *             return self.metric.ComputeScore(self.stats[0])             # <<<<<<<<<<<<<<
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   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":38
+/* "/home/cdyer/cdec/python/src/mteval.pxi":38
  * 
  *     property detail:
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":39
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":39
  *     property detail:
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  *             return self.metric.DetailedScore(self.stats[0]).c_str()             # <<<<<<<<<<<<<<
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   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":41
+/* "/home/cdyer/cdec/python/src/mteval.pxi":41
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  * 
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":42
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":42
  * 
  *     def __len__(self):
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-static PyObject *__pyx_gb_5_cdec_15SufficientStats_6generator14(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
+static PyObject *__pyx_gb_5_cdec_15SufficientStats_6generator15(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
 
 /* Python wrapper */
 static PyObject *__pyx_pw_5_cdec_15SufficientStats_5__iter__(PyObject *__pyx_v_self); /*proto*/
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   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":44
+/* "/home/cdyer/cdec/python/src/mteval.pxi":44
  *         return self.stats.size()
  * 
  *     def __iter__(self):             # <<<<<<<<<<<<<<
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 static PyObject *__pyx_pf_5_cdec_15SufficientStats_4__iter__(struct __pyx_obj_5_cdec_SufficientStats *__pyx_v_self) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_20___iter__ *__pyx_cur_scope;
+  struct __pyx_obj_5_cdec___pyx_scope_struct_21___iter__ *__pyx_cur_scope;
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-  __pyx_cur_scope = (struct __pyx_obj_5_cdec___pyx_scope_struct_20___iter__ *)__pyx_ptype_5_cdec___pyx_scope_struct_20___iter__->tp_new(__pyx_ptype_5_cdec___pyx_scope_struct_20___iter__, __pyx_empty_tuple, NULL);
+  __pyx_cur_scope = (struct __pyx_obj_5_cdec___pyx_scope_struct_21___iter__ *)__pyx_ptype_5_cdec___pyx_scope_struct_21___iter__->tp_new(__pyx_ptype_5_cdec___pyx_scope_struct_21___iter__, __pyx_empty_tuple, NULL);
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-    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_5_cdec_15SufficientStats_6generator14, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 44; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_5_cdec_15SufficientStats_6generator15, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 44; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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 }
 
-static PyObject *__pyx_gb_5_cdec_15SufficientStats_6generator14(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
+static PyObject *__pyx_gb_5_cdec_15SufficientStats_6generator15(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
 {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_20___iter__ *__pyx_cur_scope = ((struct __pyx_obj_5_cdec___pyx_scope_struct_20___iter__ *)__pyx_generator->closure);
+  struct __pyx_obj_5_cdec___pyx_scope_struct_21___iter__ *__pyx_cur_scope = ((struct __pyx_obj_5_cdec___pyx_scope_struct_21___iter__ *)__pyx_generator->closure);
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   Py_ssize_t __pyx_t_1;
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@@ -14339,7 +14383,7 @@ static PyObject *__pyx_gb_5_cdec_15SufficientStats_6generator14(__pyx_GeneratorO
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":45
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":45
  * 
  *     def __iter__(self):
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@@ -14369,18 +14413,10 @@ static PyObject *__pyx_gb_5_cdec_15SufficientStats_6generator14(__pyx_GeneratorO
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-      #endif
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-      #if CYTHON_COMPILING_IN_CPYTHON
       __pyx_t_2 = PyTuple_GET_ITEM(__pyx_t_3, __pyx_t_1); __Pyx_INCREF(__pyx_t_2); __pyx_t_1++;
-      #else
-      __pyx_t_2 = PySequence_ITEM(__pyx_t_3, __pyx_t_1); __pyx_t_1++; if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 45; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
-      #endif
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       __pyx_t_2 = __pyx_t_4(__pyx_t_3);
       if (unlikely(!__pyx_t_2)) {
@@ -14398,7 +14434,7 @@ static PyObject *__pyx_gb_5_cdec_15SufficientStats_6generator14(__pyx_GeneratorO
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     __pyx_t_2 = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":46
+    /* "/home/cdyer/cdec/python/src/mteval.pxi":46
  *     def __iter__(self):
  *         for i in range(len(self)):
  *             yield self[i]             # <<<<<<<<<<<<<<
@@ -14436,7 +14472,6 @@ static PyObject *__pyx_gb_5_cdec_15SufficientStats_6generator14(__pyx_GeneratorO
   __pyx_L0:;
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-  __Pyx_Generator_clear((PyObject*)__pyx_generator);
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@@ -14462,7 +14497,7 @@ static PyObject *__pyx_pw_5_cdec_15SufficientStats_8__getitem__(PyObject *__pyx_
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":48
+/* "/home/cdyer/cdec/python/src/mteval.pxi":48
  *             yield self[i]
  * 
  *     def __getitem__(self, int index):             # <<<<<<<<<<<<<<
@@ -14482,7 +14517,7 @@ static PyObject *__pyx_pf_5_cdec_15SufficientStats_7__getitem__(struct __pyx_obj
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":49
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":49
  * 
  *     def __getitem__(self, int index):
  *         if not 0 <= index < len(self):             # <<<<<<<<<<<<<<
@@ -14497,7 +14532,7 @@ static PyObject *__pyx_pf_5_cdec_15SufficientStats_7__getitem__(struct __pyx_obj
   __pyx_t_3 = (!__pyx_t_1);
   if (__pyx_t_3) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":50
+    /* "/home/cdyer/cdec/python/src/mteval.pxi":50
  *     def __getitem__(self, int index):
  *         if not 0 <= index < len(self):
  *             raise IndexError('sufficient stats vector index out of range')             # <<<<<<<<<<<<<<
@@ -14513,7 +14548,7 @@ static PyObject *__pyx_pf_5_cdec_15SufficientStats_7__getitem__(struct __pyx_obj
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":51
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":51
  *         if not 0 <= index < len(self):
  *             raise IndexError('sufficient stats vector index out of range')
  *         return self.stats[0][index]             # <<<<<<<<<<<<<<
@@ -14555,7 +14590,7 @@ static PyObject *__pyx_pw_5_cdec_15SufficientStats_10__iadd__(PyObject *__pyx_v_
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":53
+/* "/home/cdyer/cdec/python/src/mteval.pxi":53
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  * 
  *     def __iadd__(SufficientStats self, SufficientStats other):             # <<<<<<<<<<<<<<
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":54
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":54
  * 
  *     def __iadd__(SufficientStats self, SufficientStats other):
  *         self.stats[0] += other.stats[0]             # <<<<<<<<<<<<<<
@@ -14577,7 +14612,7 @@ static PyObject *__pyx_pf_5_cdec_15SufficientStats_9__iadd__(struct __pyx_obj_5_
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   (__pyx_v_self->stats[0]) += (__pyx_v_other->stats[0]);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":55
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":55
  *     def __iadd__(SufficientStats self, SufficientStats other):
  *         self.stats[0] += other.stats[0]
  *         return self             # <<<<<<<<<<<<<<
@@ -14607,7 +14642,7 @@ static PyObject *__pyx_pw_5_cdec_15SufficientStats_12__add__(PyObject *__pyx_v_x
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":57
+/* "/home/cdyer/cdec/python/src/mteval.pxi":57
  *         return self
  * 
  *     def __add__(x, y):             # <<<<<<<<<<<<<<
@@ -14627,7 +14662,7 @@ static PyObject *__pyx_pf_5_cdec_15SufficientStats_11__add__(PyObject *__pyx_v_x
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":58
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":58
  * 
  *     def __add__(x, y):
  *         cdef SufficientStats sx = as_stats(x, y)             # <<<<<<<<<<<<<<
@@ -14639,7 +14674,7 @@ static PyObject *__pyx_pf_5_cdec_15SufficientStats_11__add__(PyObject *__pyx_v_x
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   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":59
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":59
  *     def __add__(x, y):
  *         cdef SufficientStats sx = as_stats(x, y)
  *         cdef SufficientStats sy = as_stats(y, x)             # <<<<<<<<<<<<<<
@@ -14651,7 +14686,7 @@ static PyObject *__pyx_pf_5_cdec_15SufficientStats_11__add__(PyObject *__pyx_v_x
   __pyx_v_sy = ((struct __pyx_obj_5_cdec_SufficientStats *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":60
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":60
  *         cdef SufficientStats sx = as_stats(x, y)
  *         cdef SufficientStats sy = as_stats(y, x)
  *         cdef SufficientStats result = SufficientStats()             # <<<<<<<<<<<<<<
@@ -14663,7 +14698,7 @@ static PyObject *__pyx_pf_5_cdec_15SufficientStats_11__add__(PyObject *__pyx_v_x
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   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":61
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":61
  *         cdef SufficientStats sy = as_stats(y, x)
  *         cdef SufficientStats result = SufficientStats()
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@@ -14672,7 +14707,7 @@ static PyObject *__pyx_pf_5_cdec_15SufficientStats_11__add__(PyObject *__pyx_v_x
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   __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/cdyer/cdec/python/src/mteval.pxi":62
  *         cdef SufficientStats result = SufficientStats()
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@@ -14681,7 +14716,7 @@ static PyObject *__pyx_pf_5_cdec_15SufficientStats_11__add__(PyObject *__pyx_v_x
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   __pyx_v_result->metric = __pyx_v_sx->metric;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":63
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":63
  *         result.stats = new mteval.SufficientStats(mteval.add(sx.stats[0], sy.stats[0]))
  *         result.metric = sx.metric
  *         return result             # <<<<<<<<<<<<<<
@@ -14712,11 +14747,11 @@ static PyObject *__pyx_pf_5_cdec_15SufficientStats_11__add__(PyObject *__pyx_v_x
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 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 PyObject **__pyx_pyargnames[] = {&__pyx_n_s__evaluator,0};
   int __pyx_r;
   __Pyx_RefNannyDeclarations
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       kw_args = PyDict_Size(__pyx_kwds);
       switch (pos_args) {
         case  0:
-        if (likely((values[0] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__evaluator)) != 0)) kw_args--;
+        values[0] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__evaluator);
+        if (likely(values[0])) kw_args--;
         else goto __pyx_L5_argtuple_error;
       }
       if (unlikely(kw_args > 0)) {
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   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":70
+/* "/home/cdyer/cdec/python/src/mteval.pxi":70
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  *     def __cinit__(self, SegmentEvaluator evaluator):             # <<<<<<<<<<<<<<
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":71
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":71
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  *     def __cinit__(self, SegmentEvaluator evaluator):
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@@ -14782,7 +14818,7 @@ static int __pyx_pf_5_cdec_12CandidateSet___cinit__(struct __pyx_obj_5_cdec_Cand
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   __pyx_v_self->scorer = new boost::shared_ptr<SegmentEvaluator>((__pyx_v_evaluator->scorer[0]));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":72
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":72
  *     def __cinit__(self, SegmentEvaluator evaluator):
  *         self.scorer = new shared_ptr[mteval.SegmentEvaluator](evaluator.scorer[0])
  *         self.metric = evaluator.metric             # <<<<<<<<<<<<<<
@@ -14791,7 +14827,7 @@ static int __pyx_pf_5_cdec_12CandidateSet___cinit__(struct __pyx_obj_5_cdec_Cand
  */
   __pyx_v_self->metric = __pyx_v_evaluator->metric;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":73
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":73
  *         self.scorer = new shared_ptr[mteval.SegmentEvaluator](evaluator.scorer[0])
  *         self.metric = evaluator.metric
  *         self.cs = new mteval.CandidateSet()             # <<<<<<<<<<<<<<
@@ -14814,7 +14850,7 @@ static void __pyx_pw_5_cdec_12CandidateSet_3__dealloc__(PyObject *__pyx_v_self)
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 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":75
+/* "/home/cdyer/cdec/python/src/mteval.pxi":75
  *         self.cs = new mteval.CandidateSet()
  * 
  *     def __dealloc__(self):             # <<<<<<<<<<<<<<
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":76
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":76
  * 
  *     def __dealloc__(self):
  *         del self.scorer             # <<<<<<<<<<<<<<
@@ -14835,7 +14871,7 @@ 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/cdyer/cdec/python/src/mteval.pxi":77
  *     def __dealloc__(self):
  *         del self.scorer
  *         del self.cs             # <<<<<<<<<<<<<<
@@ -14858,7 +14894,7 @@ static Py_ssize_t __pyx_pw_5_cdec_12CandidateSet_5__len__(PyObject *__pyx_v_self
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":79
+/* "/home/cdyer/cdec/python/src/mteval.pxi":79
  *         del self.cs
  * 
  *     def __len__(self):             # <<<<<<<<<<<<<<
@@ -14871,7 +14907,7 @@ static Py_ssize_t __pyx_pf_5_cdec_12CandidateSet_4__len__(struct __pyx_obj_5_cde
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   __Pyx_RefNannySetupContext("__len__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":80
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":80
  * 
  *     def __len__(self):
  *         return self.cs.size()             # <<<<<<<<<<<<<<
@@ -14908,7 +14944,7 @@ static PyObject *__pyx_pw_5_cdec_12CandidateSet_7__getitem__(PyObject *__pyx_v_s
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":82
+/* "/home/cdyer/cdec/python/src/mteval.pxi":82
  *         return self.cs.size()
  * 
  *     def __getitem__(self,int k):             # <<<<<<<<<<<<<<
@@ -14928,7 +14964,7 @@ static PyObject *__pyx_pf_5_cdec_12CandidateSet_6__getitem__(struct __pyx_obj_5_
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   __Pyx_RefNannySetupContext("__getitem__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":83
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":83
  * 
  *     def __getitem__(self,int k):
  *         if not 0 <= k < self.cs.size():             # <<<<<<<<<<<<<<
@@ -14942,7 +14978,7 @@ static PyObject *__pyx_pf_5_cdec_12CandidateSet_6__getitem__(struct __pyx_obj_5_
   __pyx_t_2 = (!__pyx_t_1);
   if (__pyx_t_2) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":84
+    /* "/home/cdyer/cdec/python/src/mteval.pxi":84
  *     def __getitem__(self,int k):
  *         if not 0 <= k < self.cs.size():
  *             raise IndexError('candidate set index out of range')             # <<<<<<<<<<<<<<
@@ -14958,7 +14994,7 @@ static PyObject *__pyx_pf_5_cdec_12CandidateSet_6__getitem__(struct __pyx_obj_5_
   }
   __pyx_L3:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":85
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":85
  *         if not 0 <= k < self.cs.size():
  *             raise IndexError('candidate set index out of range')
  *         cdef Candidate candidate = Candidate()             # <<<<<<<<<<<<<<
@@ -14970,7 +15006,7 @@ static PyObject *__pyx_pf_5_cdec_12CandidateSet_6__getitem__(struct __pyx_obj_5_
   __pyx_v_candidate = ((struct __pyx_obj_5_cdec_Candidate *)__pyx_t_3);
   __pyx_t_3 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":86
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":86
  *             raise IndexError('candidate set index out of range')
  *         cdef Candidate candidate = Candidate()
  *         candidate.candidate = &self.cs[0][k]             # <<<<<<<<<<<<<<
@@ -14979,7 +15015,7 @@ static PyObject *__pyx_pf_5_cdec_12CandidateSet_6__getitem__(struct __pyx_obj_5_
  */
   __pyx_v_candidate->candidate = (&((__pyx_v_self->cs[0])[__pyx_v_k]));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":87
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":87
  *         cdef Candidate candidate = Candidate()
  *         candidate.candidate = &self.cs[0][k]
  *         candidate.score = self.metric.ComputeScore(self.cs[0][k].eval_feats)             # <<<<<<<<<<<<<<
@@ -14988,7 +15024,7 @@ static PyObject *__pyx_pf_5_cdec_12CandidateSet_6__getitem__(struct __pyx_obj_5_
  */
   __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/cdyer/cdec/python/src/mteval.pxi":88
  *         candidate.candidate = &self.cs[0][k]
  *         candidate.score = self.metric.ComputeScore(self.cs[0][k].eval_feats)
  *         return candidate             # <<<<<<<<<<<<<<
@@ -15012,7 +15048,7 @@ static PyObject *__pyx_pf_5_cdec_12CandidateSet_6__getitem__(struct __pyx_obj_5_
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 }
-static PyObject *__pyx_gb_5_cdec_12CandidateSet_10generator15(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value); /* proto */
+static PyObject *__pyx_gb_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*/
@@ -15025,7 +15061,7 @@ static PyObject *__pyx_pw_5_cdec_12CandidateSet_9__iter__(PyObject *__pyx_v_self
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":90
+/* "/home/cdyer/cdec/python/src/mteval.pxi":90
  *         return candidate
  * 
  *     def __iter__(self):             # <<<<<<<<<<<<<<
@@ -15034,14 +15070,14 @@ static PyObject *__pyx_pw_5_cdec_12CandidateSet_9__iter__(PyObject *__pyx_v_self
  */
 
 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_21___iter__ *__pyx_cur_scope;
+  struct __pyx_obj_5_cdec___pyx_scope_struct_22___iter__ *__pyx_cur_scope;
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+  __pyx_cur_scope = (struct __pyx_obj_5_cdec___pyx_scope_struct_22___iter__ *)__pyx_ptype_5_cdec___pyx_scope_struct_22___iter__->tp_new(__pyx_ptype_5_cdec___pyx_scope_struct_22___iter__, __pyx_empty_tuple, NULL);
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@@ -15051,7 +15087,7 @@ static PyObject *__pyx_pf_5_cdec_12CandidateSet_8__iter__(struct __pyx_obj_5_cde
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   __Pyx_GIVEREF((PyObject *)__pyx_cur_scope->__pyx_v_self);
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-    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_5_cdec_12CandidateSet_10generator15, (PyObject *) __pyx_cur_scope); if (unlikely(!gen)) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 90; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_GeneratorObject *gen = __Pyx_Generator_New((__pyx_generator_body_t) __pyx_gb_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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@@ -15069,9 +15105,9 @@ static PyObject *__pyx_pf_5_cdec_12CandidateSet_8__iter__(struct __pyx_obj_5_cde
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 }
 
-static PyObject *__pyx_gb_5_cdec_12CandidateSet_10generator15(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
+static PyObject *__pyx_gb_5_cdec_12CandidateSet_10generator16(__pyx_GeneratorObject *__pyx_generator, PyObject *__pyx_sent_value) /* generator body */
 {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_21___iter__ *__pyx_cur_scope = ((struct __pyx_obj_5_cdec___pyx_scope_struct_21___iter__ *)__pyx_generator->closure);
+  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);
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   Py_ssize_t __pyx_t_1;
   unsigned int __pyx_t_2;
@@ -15088,7 +15124,7 @@ static PyObject *__pyx_gb_5_cdec_12CandidateSet_10generator15(__pyx_GeneratorObj
   __pyx_L3_first_run:;
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":92
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":92
  *     def __iter__(self):
  *         cdef unsigned i
  *         for i in range(len(self)):             # <<<<<<<<<<<<<<
@@ -15099,7 +15135,7 @@ static PyObject *__pyx_gb_5_cdec_12CandidateSet_10generator15(__pyx_GeneratorObj
   for (__pyx_t_2 = 0; __pyx_t_2 < __pyx_t_1; __pyx_t_2+=1) {
     __pyx_cur_scope->__pyx_v_i = __pyx_t_2;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":93
+    /* "/home/cdyer/cdec/python/src/mteval.pxi":93
  *         cdef unsigned i
  *         for i in range(len(self)):
  *             yield self[i]             # <<<<<<<<<<<<<<
@@ -15130,7 +15166,6 @@ static PyObject *__pyx_gb_5_cdec_12CandidateSet_10generator15(__pyx_GeneratorObj
   __pyx_L0:;
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   __pyx_generator->resume_label = -1;
-  __Pyx_Generator_clear((PyObject*)__pyx_generator);
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@@ -15140,11 +15175,11 @@ static PyObject *__pyx_pw_5_cdec_12CandidateSet_12add_kbest(PyObject *__pyx_v_se
 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;
   unsigned int __pyx_v_k;
+  static PyObject **__pyx_pyargnames[] = {&__pyx_n_s__hypergraph,&__pyx_n_s__k,0};
   PyObject *__pyx_r = 0;
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   __Pyx_RefNannySetupContext("add_kbest (wrapper)", 0);
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-    static PyObject **__pyx_pyargnames[] = {&__pyx_n_s__hypergraph,&__pyx_n_s__k,0};
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@@ -15158,10 +15193,12 @@ static PyObject *__pyx_pw_5_cdec_12CandidateSet_12add_kbest(PyObject *__pyx_v_se
       kw_args = PyDict_Size(__pyx_kwds);
       switch (pos_args) {
         case  0:
-        if (likely((values[0] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__hypergraph)) != 0)) kw_args--;
+        values[0] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__hypergraph);
+        if (likely(values[0])) kw_args--;
         else goto __pyx_L5_argtuple_error;
         case  1:
-        if (likely((values[1] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__k)) != 0)) kw_args--;
+        values[1] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__k);
+        if (likely(values[1])) kw_args--;
         else {
           __Pyx_RaiseArgtupleInvalid("add_kbest", 1, 2, 2, 1); {__pyx_filename = __pyx_f[5]; __pyx_lineno = 95; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
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@@ -15196,7 +15233,7 @@ static PyObject *__pyx_pw_5_cdec_12CandidateSet_12add_kbest(PyObject *__pyx_v_se
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":95
+/* "/home/cdyer/cdec/python/src/mteval.pxi":95
  *             yield self[i]
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  *     def add_kbest(self, Hypergraph hypergraph, unsigned k):             # <<<<<<<<<<<<<<
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":96
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":96
  * 
  *     def add_kbest(self, Hypergraph hypergraph, unsigned k):
  *         self.cs.AddKBestCandidates(hypergraph.hg[0], k, self.scorer.get())             # <<<<<<<<<<<<<<
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 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":102
+/* "/home/cdyer/cdec/python/src/mteval.pxi":102
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  * 
  *     def __dealloc__(self):             # <<<<<<<<<<<<<<
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":103
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":103
  * 
  *     def __dealloc__(self):
  *         del self.scorer             # <<<<<<<<<<<<<<
@@ -15268,7 +15305,7 @@ static PyObject *__pyx_pw_5_cdec_16SegmentEvaluator_3evaluate(PyObject *__pyx_v_
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":105
+/* "/home/cdyer/cdec/python/src/mteval.pxi":105
  *         del self.scorer
  * 
  *     def evaluate(self, sentence):             # <<<<<<<<<<<<<<
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":107
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":107
  *     def evaluate(self, sentence):
  *         cdef vector[WordID] hyp
  *         cdef SufficientStats sf = SufficientStats()             # <<<<<<<<<<<<<<
@@ -15300,7 +15337,7 @@ static PyObject *__pyx_pf_5_cdec_16SegmentEvaluator_2evaluate(struct __pyx_obj_5
   __pyx_v_sf = ((struct __pyx_obj_5_cdec_SufficientStats *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":108
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":108
  *         cdef vector[WordID] hyp
  *         cdef SufficientStats sf = SufficientStats()
  *         sf.metric = self.metric             # <<<<<<<<<<<<<<
@@ -15309,7 +15346,7 @@ static PyObject *__pyx_pf_5_cdec_16SegmentEvaluator_2evaluate(struct __pyx_obj_5
  */
   __pyx_v_sf->metric = __pyx_v_self->metric;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":109
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":109
  *         cdef SufficientStats sf = SufficientStats()
  *         sf.metric = self.metric
  *         sf.stats = new mteval.SufficientStats()             # <<<<<<<<<<<<<<
@@ -15318,7 +15355,7 @@ static PyObject *__pyx_pf_5_cdec_16SegmentEvaluator_2evaluate(struct __pyx_obj_5
  */
   __pyx_v_sf->stats = new SufficientStats();
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":110
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":110
  *         sf.metric = self.metric
  *         sf.stats = new mteval.SufficientStats()
  *         ConvertSentence(string(as_str(sentence.strip())), &hyp)             # <<<<<<<<<<<<<<
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   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":111
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":111
  *         sf.stats = new mteval.SufficientStats()
  *         ConvertSentence(string(as_str(sentence.strip())), &hyp)
  *         self.scorer.get().Evaluate(hyp, sf.stats)             # <<<<<<<<<<<<<<
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   __pyx_v_self->scorer->get()->Evaluate(__pyx_v_hyp, __pyx_v_sf->stats);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":112
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":112
  *         ConvertSentence(string(as_str(sentence.strip())), &hyp)
  *         self.scorer.get().Evaluate(hyp, sf.stats)
  *         return sf             # <<<<<<<<<<<<<<
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   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":114
+/* "/home/cdyer/cdec/python/src/mteval.pxi":114
  *         return sf
  * 
  *     def candidate_set(self):             # <<<<<<<<<<<<<<
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":115
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":115
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  *     def candidate_set(self):
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   PyObject *__pyx_v_name = 0;
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-    /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":121
+    /* "/home/cdyer/cdec/python/src/mteval.pxi":121
  *     cdef mteval.EvaluationMetric* metric
  * 
  *     def __cinit__(self, bytes name=None):             # <<<<<<<<<<<<<<
@@ -15505,7 +15542,7 @@ static int __pyx_pf_5_cdec_6Scorer___cinit__(struct __pyx_obj_5_cdec_Scorer *__p
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   __Pyx_RefNannySetupContext("__cinit__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":122
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":122
  * 
  *     def __cinit__(self, bytes name=None):
  *         if name:             # <<<<<<<<<<<<<<
@@ -15515,7 +15552,7 @@ static int __pyx_pf_5_cdec_6Scorer___cinit__(struct __pyx_obj_5_cdec_Scorer *__p
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   if (__pyx_t_1) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":123
+    /* "/home/cdyer/cdec/python/src/mteval.pxi":123
  *     def __cinit__(self, bytes name=None):
  *         if name:
  *             self.name = new string(name)             # <<<<<<<<<<<<<<
@@ -15525,7 +15562,7 @@ static int __pyx_pf_5_cdec_6Scorer___cinit__(struct __pyx_obj_5_cdec_Scorer *__p
     __pyx_t_2 = PyBytes_AsString(((PyObject *)__pyx_v_name)); if (unlikely((!__pyx_t_2) && PyErr_Occurred())) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 123; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __pyx_v_self->name = new std::string(__pyx_t_2);
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":124
+    /* "/home/cdyer/cdec/python/src/mteval.pxi":124
  *         if name:
  *             self.name = new string(name)
  *             self.metric = mteval.MetricInstance(self.name[0])             # <<<<<<<<<<<<<<
@@ -15556,7 +15593,7 @@ static void __pyx_pw_5_cdec_6Scorer_3__dealloc__(PyObject *__pyx_v_self) {
   __Pyx_RefNannyFinishContext();
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":126
+/* "/home/cdyer/cdec/python/src/mteval.pxi":126
  *             self.metric = mteval.MetricInstance(self.name[0])
  * 
  *     def __dealloc__(self):             # <<<<<<<<<<<<<<
@@ -15568,7 +15605,7 @@ static void __pyx_pf_5_cdec_6Scorer_2__dealloc__(CYTHON_UNUSED struct __pyx_obj_
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   __Pyx_RefNannySetupContext("__dealloc__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":127
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":127
  * 
  *     def __dealloc__(self):
  *         del self.name             # <<<<<<<<<<<<<<
@@ -15584,11 +15621,11 @@ static void __pyx_pf_5_cdec_6Scorer_2__dealloc__(CYTHON_UNUSED struct __pyx_obj_
 static PyObject *__pyx_pw_5_cdec_6Scorer_5__call__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
 static PyObject *__pyx_pw_5_cdec_6Scorer_5__call__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_refs = 0;
+  static PyObject **__pyx_pyargnames[] = {&__pyx_n_s__refs,0};
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__call__ (wrapper)", 0);
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-    static PyObject **__pyx_pyargnames[] = {&__pyx_n_s__refs,0};
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     if (unlikely(__pyx_kwds)) {
       Py_ssize_t kw_args;
@@ -15601,7 +15638,8 @@ static PyObject *__pyx_pw_5_cdec_6Scorer_5__call__(PyObject *__pyx_v_self, PyObj
       kw_args = PyDict_Size(__pyx_kwds);
       switch (pos_args) {
         case  0:
-        if (likely((values[0] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__refs)) != 0)) kw_args--;
+        values[0] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__refs);
+        if (likely(values[0])) kw_args--;
         else goto __pyx_L5_argtuple_error;
       }
       if (unlikely(kw_args > 0)) {
@@ -15627,7 +15665,7 @@ static PyObject *__pyx_pw_5_cdec_6Scorer_5__call__(PyObject *__pyx_v_self, PyObj
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":129
+/* "/home/cdyer/cdec/python/src/mteval.pxi":129
  *         del self.name
  * 
  *     def __call__(self, refs):             # <<<<<<<<<<<<<<
@@ -15656,7 +15694,7 @@ static PyObject *__pyx_pf_5_cdec_6Scorer_4__call__(struct __pyx_obj_5_cdec_Score
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   __Pyx_INCREF(__pyx_v_refs);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":130
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":130
  * 
  *     def __call__(self, refs):
  *         if isinstance(refs, unicode) or isinstance(refs, str):             # <<<<<<<<<<<<<<
@@ -15678,7 +15716,7 @@ static PyObject *__pyx_pf_5_cdec_6Scorer_4__call__(struct __pyx_obj_5_cdec_Score
   }
   if (__pyx_t_4) {
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":131
+    /* "/home/cdyer/cdec/python/src/mteval.pxi":131
  *     def __call__(self, refs):
  *         if isinstance(refs, unicode) or isinstance(refs, str):
  *             refs = [refs]             # <<<<<<<<<<<<<<
@@ -15697,7 +15735,7 @@ static PyObject *__pyx_pf_5_cdec_6Scorer_4__call__(struct __pyx_obj_5_cdec_Score
   }
   __pyx_L3:;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":132
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":132
  *         if isinstance(refs, unicode) or isinstance(refs, str):
  *             refs = [refs]
  *         cdef vector[vector[WordID]]* refsv = new vector[vector[WordID]]()             # <<<<<<<<<<<<<<
@@ -15706,7 +15744,7 @@ static PyObject *__pyx_pf_5_cdec_6Scorer_4__call__(struct __pyx_obj_5_cdec_Score
  */
   __pyx_v_refsv = new std::vector<std::vector<WordID> >();
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":135
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":135
  *         cdef vector[WordID]* refv
  *         cdef bytes ref_str
  *         for ref in refs:             # <<<<<<<<<<<<<<
@@ -15724,18 +15762,10 @@ static PyObject *__pyx_pf_5_cdec_6Scorer_4__call__(struct __pyx_obj_5_cdec_Score
   for (;;) {
     if (!__pyx_t_6 && PyList_CheckExact(__pyx_t_1)) {
       if (__pyx_t_5 >= PyList_GET_SIZE(__pyx_t_1)) break;
-      #if CYTHON_COMPILING_IN_CPYTHON
       __pyx_t_7 = PyList_GET_ITEM(__pyx_t_1, __pyx_t_5); __Pyx_INCREF(__pyx_t_7); __pyx_t_5++;
-      #else
-      __pyx_t_7 = PySequence_ITEM(__pyx_t_1, __pyx_t_5); __pyx_t_5++; if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 135; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
-      #endif
     } else if (!__pyx_t_6 && PyTuple_CheckExact(__pyx_t_1)) {
       if (__pyx_t_5 >= PyTuple_GET_SIZE(__pyx_t_1)) break;
-      #if CYTHON_COMPILING_IN_CPYTHON
       __pyx_t_7 = PyTuple_GET_ITEM(__pyx_t_1, __pyx_t_5); __Pyx_INCREF(__pyx_t_7); __pyx_t_5++;
-      #else
-      __pyx_t_7 = PySequence_ITEM(__pyx_t_1, __pyx_t_5); __pyx_t_5++; if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 135; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
-      #endif
     } else {
       __pyx_t_7 = __pyx_t_6(__pyx_t_1);
       if (unlikely(!__pyx_t_7)) {
@@ -15751,7 +15781,7 @@ static PyObject *__pyx_pf_5_cdec_6Scorer_4__call__(struct __pyx_obj_5_cdec_Score
     __pyx_v_ref = __pyx_t_7;
     __pyx_t_7 = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":136
+    /* "/home/cdyer/cdec/python/src/mteval.pxi":136
  *         cdef bytes ref_str
  *         for ref in refs:
  *             refv = new vector[WordID]()             # <<<<<<<<<<<<<<
@@ -15760,7 +15790,7 @@ static PyObject *__pyx_pf_5_cdec_6Scorer_4__call__(struct __pyx_obj_5_cdec_Score
  */
     __pyx_v_refv = new std::vector<WordID>();
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":137
+    /* "/home/cdyer/cdec/python/src/mteval.pxi":137
  *         for ref in refs:
  *             refv = new vector[WordID]()
  *             ConvertSentence(string(as_str(ref.strip())), refv)             # <<<<<<<<<<<<<<
@@ -15775,7 +15805,7 @@ static PyObject *__pyx_pf_5_cdec_6Scorer_4__call__(struct __pyx_obj_5_cdec_Score
     TD::ConvertSentence(std::string(__pyx_f_5_cdec_as_str(__pyx_t_8, NULL)), __pyx_v_refv);
     __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":138
+    /* "/home/cdyer/cdec/python/src/mteval.pxi":138
  *             refv = new vector[WordID]()
  *             ConvertSentence(string(as_str(ref.strip())), refv)
  *             refsv.push_back(refv[0])             # <<<<<<<<<<<<<<
@@ -15784,7 +15814,7 @@ static PyObject *__pyx_pf_5_cdec_6Scorer_4__call__(struct __pyx_obj_5_cdec_Score
  */
     __pyx_v_refsv->push_back((__pyx_v_refv[0]));
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":139
+    /* "/home/cdyer/cdec/python/src/mteval.pxi":139
  *             ConvertSentence(string(as_str(ref.strip())), refv)
  *             refsv.push_back(refv[0])
  *             del refv             # <<<<<<<<<<<<<<
@@ -15795,7 +15825,7 @@ static PyObject *__pyx_pf_5_cdec_6Scorer_4__call__(struct __pyx_obj_5_cdec_Score
   }
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":141
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":141
  *             del refv
  *         cdef unsigned i
  *         cdef SegmentEvaluator evaluator = SegmentEvaluator()             # <<<<<<<<<<<<<<
@@ -15807,7 +15837,7 @@ static PyObject *__pyx_pf_5_cdec_6Scorer_4__call__(struct __pyx_obj_5_cdec_Score
   __pyx_v_evaluator = ((struct __pyx_obj_5_cdec_SegmentEvaluator *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":142
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":142
  *         cdef unsigned i
  *         cdef SegmentEvaluator evaluator = SegmentEvaluator()
  *         evaluator.metric = self.metric             # <<<<<<<<<<<<<<
@@ -15816,7 +15846,7 @@ static PyObject *__pyx_pf_5_cdec_6Scorer_4__call__(struct __pyx_obj_5_cdec_Score
  */
   __pyx_v_evaluator->metric = __pyx_v_self->metric;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":143
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":143
  *         cdef SegmentEvaluator evaluator = SegmentEvaluator()
  *         evaluator.metric = self.metric
  *         evaluator.scorer = new shared_ptr[mteval.SegmentEvaluator](             # <<<<<<<<<<<<<<
@@ -15825,7 +15855,7 @@ static PyObject *__pyx_pf_5_cdec_6Scorer_4__call__(struct __pyx_obj_5_cdec_Score
  */
   __pyx_v_evaluator->scorer = new boost::shared_ptr<SegmentEvaluator>(__pyx_v_self->metric->CreateSegmentEvaluator((__pyx_v_refsv[0])));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":145
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":145
  *         evaluator.scorer = new shared_ptr[mteval.SegmentEvaluator](
  *                 self.metric.CreateSegmentEvaluator(refsv[0]))
  *         del refsv # in theory should not delete but store in SegmentEvaluator             # <<<<<<<<<<<<<<
@@ -15834,7 +15864,7 @@ static PyObject *__pyx_pf_5_cdec_6Scorer_4__call__(struct __pyx_obj_5_cdec_Score
  */
   delete __pyx_v_refsv;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":146
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":146
  *                 self.metric.CreateSegmentEvaluator(refsv[0]))
  *         del refsv # in theory should not delete but store in SegmentEvaluator
  *         return evaluator             # <<<<<<<<<<<<<<
@@ -15874,7 +15904,7 @@ static PyObject *__pyx_pw_5_cdec_6Scorer_7__str__(PyObject *__pyx_v_self) {
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":148
+/* "/home/cdyer/cdec/python/src/mteval.pxi":148
  *         return evaluator
  * 
  *     def __str__(self):             # <<<<<<<<<<<<<<
@@ -15891,7 +15921,7 @@ static PyObject *__pyx_pf_5_cdec_6Scorer_6__str__(struct __pyx_obj_5_cdec_Scorer
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   __Pyx_RefNannySetupContext("__str__", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":149
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":149
  * 
  *     def __str__(self):
  *         return self.name.c_str()             # <<<<<<<<<<<<<<
@@ -15917,7 +15947,7 @@ static PyObject *__pyx_pf_5_cdec_6Scorer_6__str__(struct __pyx_obj_5_cdec_Scorer
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":151
+/* "/home/cdyer/cdec/python/src/mteval.pxi":151
  *         return self.name.c_str()
  * 
  * cdef float _compute_score(void* metric_, mteval.SufficientStats* stats):             # <<<<<<<<<<<<<<
@@ -15943,7 +15973,7 @@ static float __pyx_f_5_cdec__compute_score(void *__pyx_v_metric_, SufficientStat
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   __Pyx_RefNannySetupContext("_compute_score", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":152
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":152
  * 
  * cdef float _compute_score(void* metric_, mteval.SufficientStats* stats):
  *     cdef Metric metric = <Metric> metric_             # <<<<<<<<<<<<<<
@@ -15953,7 +15983,7 @@ static float __pyx_f_5_cdec__compute_score(void *__pyx_v_metric_, SufficientStat
   __Pyx_INCREF(((PyObject *)((struct __pyx_obj_5_cdec_Metric *)__pyx_v_metric_)));
   __pyx_v_metric = ((struct __pyx_obj_5_cdec_Metric *)__pyx_v_metric_);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":153
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":153
  * cdef float _compute_score(void* metric_, mteval.SufficientStats* stats):
  *     cdef Metric metric = <Metric> metric_
  *     cdef list ss = []             # <<<<<<<<<<<<<<
@@ -15965,7 +15995,7 @@ static float __pyx_f_5_cdec__compute_score(void *__pyx_v_metric_, SufficientStat
   __pyx_v_ss = __pyx_t_1;
   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":155
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":155
  *     cdef list ss = []
  *     cdef unsigned i
  *     for i in range(stats.size()):             # <<<<<<<<<<<<<<
@@ -15976,7 +16006,7 @@ static float __pyx_f_5_cdec__compute_score(void *__pyx_v_metric_, SufficientStat
   for (__pyx_t_3 = 0; __pyx_t_3 < __pyx_t_2; __pyx_t_3+=1) {
     __pyx_v_i = __pyx_t_3;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":156
+    /* "/home/cdyer/cdec/python/src/mteval.pxi":156
  *     cdef unsigned i
  *     for i in range(stats.size()):
  *         ss.append(stats[0][i])             # <<<<<<<<<<<<<<
@@ -15989,7 +16019,7 @@ static float __pyx_f_5_cdec__compute_score(void *__pyx_v_metric_, SufficientStat
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":157
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":157
  *     for i in range(stats.size()):
  *         ss.append(stats[0][i])
  *     return metric.score(ss)             # <<<<<<<<<<<<<<
@@ -16027,7 +16057,7 @@ static float __pyx_f_5_cdec__compute_score(void *__pyx_v_metric_, SufficientStat
   return __pyx_r;
 }
 
-/* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":159
+/* "/home/cdyer/cdec/python/src/mteval.pxi":159
  *     return metric.score(ss)
  * 
  * cdef void _compute_sufficient_stats(void* metric_,             # <<<<<<<<<<<<<<
@@ -16054,7 +16084,7 @@ static void __pyx_f_5_cdec__compute_sufficient_stats(void *__pyx_v_metric_, std:
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   __Pyx_RefNannySetupContext("_compute_sufficient_stats", 0);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":163
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":163
  *         vector[string]* refs,
  *         mteval.SufficientStats* out):
  *     cdef Metric metric = <Metric> metric_             # <<<<<<<<<<<<<<
@@ -16064,7 +16094,7 @@ static void __pyx_f_5_cdec__compute_sufficient_stats(void *__pyx_v_metric_, std:
   __Pyx_INCREF(((PyObject *)((struct __pyx_obj_5_cdec_Metric *)__pyx_v_metric_)));
   __pyx_v_metric = ((struct __pyx_obj_5_cdec_Metric *)__pyx_v_metric_);
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":164
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":164
  *         mteval.SufficientStats* out):
  *     cdef Metric metric = <Metric> metric_
  *     cdef list refs_ = []             # <<<<<<<<<<<<<<
@@ -16076,7 +16106,7 @@ static void __pyx_f_5_cdec__compute_sufficient_stats(void *__pyx_v_metric_, std:
   __pyx_v_refs_ = __pyx_t_1;
   __pyx_t_1 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":166
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":166
  *     cdef list refs_ = []
  *     cdef unsigned i
  *     for i in range(refs.size()):             # <<<<<<<<<<<<<<
@@ -16087,7 +16117,7 @@ static void __pyx_f_5_cdec__compute_sufficient_stats(void *__pyx_v_metric_, std:
   for (__pyx_t_3 = 0; __pyx_t_3 < __pyx_t_2; __pyx_t_3+=1) {
     __pyx_v_i = __pyx_t_3;
 
-    /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":167
+    /* "/home/cdyer/cdec/python/src/mteval.pxi":167
  *     cdef unsigned i
  *     for i in range(refs.size()):
  *         refs_.append(refs[0][i].c_str())             # <<<<<<<<<<<<<<
@@ -16100,7 +16130,7 @@ static void __pyx_f_5_cdec__compute_sufficient_stats(void *__pyx_v_metric_, std:
     __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
   }
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":168
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":168
  *     for i in range(refs.size()):
  *         refs_.append(refs[0][i].c_str())
  *     cdef list ss = metric.evaluate(hyp.c_str(), refs_)             # <<<<<<<<<<<<<<
@@ -16127,7 +16157,7 @@ static void __pyx_f_5_cdec__compute_sufficient_stats(void *__pyx_v_metric_, std:
   __pyx_v_ss = ((PyObject*)__pyx_t_5);
   __pyx_t_5 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":169
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":169
  *         refs_.append(refs[0][i].c_str())
  *     cdef list ss = metric.evaluate(hyp.c_str(), refs_)
  *     out.fields.resize(len(ss))             # <<<<<<<<<<<<<<
@@ -16135,13 +16165,12 @@ static void __pyx_f_5_cdec__compute_sufficient_stats(void *__pyx_v_metric_, std:
  *         out.fields[i] = ss[i]
  */
   if (unlikely(((PyObject *)__pyx_v_ss) == Py_None)) {
-    PyErr_SetString(PyExc_TypeError, "object of type 'NoneType' has no len()");
-    {__pyx_filename = __pyx_f[5]; __pyx_lineno = 169; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    PyErr_SetString(PyExc_TypeError, "object of type 'NoneType' has no len()"); {__pyx_filename = __pyx_f[5]; __pyx_lineno = 169; __pyx_clineno = __LINE__; goto __pyx_L1_error;} 
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-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":170
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-    {__pyx_filename = __pyx_f[5]; __pyx_lineno = 170; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    PyErr_SetString(PyExc_TypeError, "object of type 'NoneType' has no len()"); {__pyx_filename = __pyx_f[5]; __pyx_lineno = 170; __pyx_clineno = __LINE__; goto __pyx_L1_error;} 
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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":177
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 /* Python wrapper */
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+  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);
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+  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);
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-  struct __pyx_obj_5_cdec___pyx_scope_struct_23___cinit__ *__pyx_cur_scope;
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+  __pyx_cur_scope = (struct __pyx_obj_5_cdec___pyx_scope_struct_24___cinit__ *)__pyx_ptype_5_cdec___pyx_scope_struct_24___cinit__->tp_new(__pyx_ptype_5_cdec___pyx_scope_struct_24___cinit__, __pyx_empty_tuple, NULL);
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 static PyObject *__pyx_pf_5_cdec_7Decoder_9formalism___get__(struct __pyx_obj_5_cdec_Decoder *__pyx_v_self) {
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+ *             #return conf[0]['formalism']
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-  /* "_cdec.pyx":85
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+  /* "_cdec.pyx":86
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 }
 
-/* "_cdec.pyx":87
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+/* "_cdec.pyx":88
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-            /* "_cdec.pyx":90
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-            {__pyx_filename = __pyx_f[0]; __pyx_lineno = 88; __pyx_clineno = __LINE__; goto __pyx_L9_except_error;}
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-        if (likely((values[0] = PyDict_GetItem(__pyx_kwds, __pyx_n_s__sentence)) != 0)) kw_args--;
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-    /* "_cdec.pyx":97
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+    __pyx_t_1 = PyBytes_FromString(__pyx_f_5_cdec_as_str(__pyx_t_5, NULL)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 98; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-  /* "_cdec.pyx":98
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-    /* "_cdec.pyx":99
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-    /* "_cdec.pyx":101
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-    {__pyx_filename = __pyx_f[0]; __pyx_lineno = 101; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-  /* "_cdec.pyx":102
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-    /* "_cdec.pyx":103
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-      /* "_cdec.pyx":104
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       __Pyx_GIVEREF(__pyx_v_grammar);
-      __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_5_cdec_TextGrammar)), ((PyObject *)__pyx_t_5), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 106; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_5_cdec_TextGrammar)), ((PyObject *)__pyx_t_5), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 107; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
       __Pyx_DECREF(((PyObject *)__pyx_t_5)); __pyx_t_5 = 0;
       __pyx_v_self->dec->AddSupplementalGrammar((((struct __pyx_obj_5_cdec_TextGrammar *)__pyx_t_1)->__pyx_base.grammar[0]));
@@ -18534,7 +18474,7 @@ static PyObject *__pyx_pf_5_cdec_7Decoder_6translate(struct __pyx_obj_5_cdec_Dec
   }
   __pyx_L4:;
 
-  /* "_cdec.pyx":107
+  /* "_cdec.pyx":108
  *             else:
  *                 self.dec.AddSupplementalGrammar(TextGrammar(grammar).grammar[0])
  *         cdef decoder.BasicObserver observer = decoder.BasicObserver()             # <<<<<<<<<<<<<<
@@ -18543,17 +18483,17 @@ static PyObject *__pyx_pf_5_cdec_7Decoder_6translate(struct __pyx_obj_5_cdec_Dec
  */
   __pyx_v_observer = BasicObserver();
 
-  /* "_cdec.pyx":108
+  /* "_cdec.pyx":109
  *                 self.dec.AddSupplementalGrammar(TextGrammar(grammar).grammar[0])
  *         cdef decoder.BasicObserver observer = decoder.BasicObserver()
  *         self.dec.Decode(string(input_str), &observer)             # <<<<<<<<<<<<<<
  *         if observer.hypergraph == NULL:
  *             raise ParseFailed()
  */
-  __pyx_t_6 = PyBytes_AsString(((PyObject *)__pyx_v_input_str)); if (unlikely((!__pyx_t_6) && PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 108; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_6 = PyBytes_AsString(((PyObject *)__pyx_v_input_str)); if (unlikely((!__pyx_t_6) && PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 109; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_v_self->dec->Decode(std::string(__pyx_t_6), (&__pyx_v_observer));
 
-  /* "_cdec.pyx":109
+  /* "_cdec.pyx":110
  *         cdef decoder.BasicObserver observer = decoder.BasicObserver()
  *         self.dec.Decode(string(input_str), &observer)
  *         if observer.hypergraph == NULL:             # <<<<<<<<<<<<<<
@@ -18563,38 +18503,38 @@ static PyObject *__pyx_pf_5_cdec_7Decoder_6translate(struct __pyx_obj_5_cdec_Dec
   __pyx_t_3 = (__pyx_v_observer.hypergraph == NULL);
   if (__pyx_t_3) {
 
-    /* "_cdec.pyx":110
+    /* "_cdec.pyx":111
  *         self.dec.Decode(string(input_str), &observer)
  *         if observer.hypergraph == NULL:
  *             raise ParseFailed()             # <<<<<<<<<<<<<<
  *         cdef Hypergraph hg = Hypergraph()
  *         hg.hg = new hypergraph.Hypergraph(observer.hypergraph[0])
  */
-    __pyx_t_1 = __Pyx_GetName(__pyx_m, __pyx_n_s__ParseFailed); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 110; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = __Pyx_GetName(__pyx_m, __pyx_n_s__ParseFailed); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 111; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_5 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 110; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 111; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     __Pyx_Raise(__pyx_t_5, 0, 0, 0);
     __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-    {__pyx_filename = __pyx_f[0]; __pyx_lineno = 110; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    {__pyx_filename = __pyx_f[0]; __pyx_lineno = 111; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     goto __pyx_L6;
   }
   __pyx_L6:;
 
-  /* "_cdec.pyx":111
+  /* "_cdec.pyx":112
  *         if observer.hypergraph == NULL:
  *             raise ParseFailed()
  *         cdef Hypergraph hg = Hypergraph()             # <<<<<<<<<<<<<<
  *         hg.hg = new hypergraph.Hypergraph(observer.hypergraph[0])
  *         return hg
  */
-  __pyx_t_5 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_5_cdec_Hypergraph)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 111; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_5 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_5_cdec_Hypergraph)), ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 112; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_5);
   __pyx_v_hg = ((struct __pyx_obj_5_cdec_Hypergraph *)__pyx_t_5);
   __pyx_t_5 = 0;
 
-  /* "_cdec.pyx":112
+  /* "_cdec.pyx":113
  *             raise ParseFailed()
  *         cdef Hypergraph hg = Hypergraph()
  *         hg.hg = new hypergraph.Hypergraph(observer.hypergraph[0])             # <<<<<<<<<<<<<<
@@ -18602,7 +18542,7 @@ 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":113
+  /* "_cdec.pyx":114
  *         cdef Hypergraph hg = Hypergraph()
  *         hg.hg = new hypergraph.Hypergraph(observer.hypergraph[0])
  *         return hg             # <<<<<<<<<<<<<<
@@ -18627,50 +18567,7 @@ static PyObject *__pyx_pf_5_cdec_7Decoder_6translate(struct __pyx_obj_5_cdec_Dec
   return __pyx_r;
 }
 
-/* "string.to_py":25
- * 
- * @cname("__pyx_convert_string_to_py_")
- * cdef object __pyx_convert_string_to_py_(string& s):             # <<<<<<<<<<<<<<
- *     return s.data()[:s.size()]
- * 
- */
-
-static PyObject *__pyx_convert_string_to_py_(const std::string &__pyx_v_s) {
-  PyObject *__pyx_r = NULL;
-  __Pyx_RefNannyDeclarations
-  PyObject *__pyx_t_1 = NULL;
-  int __pyx_lineno = 0;
-  const char *__pyx_filename = NULL;
-  int __pyx_clineno = 0;
-  __Pyx_RefNannySetupContext("__pyx_convert_string_to_py_", 0);
-
-  /* "string.to_py":26
- * @cname("__pyx_convert_string_to_py_")
- * cdef object __pyx_convert_string_to_py_(string& s):
- *     return s.data()[:s.size()]             # <<<<<<<<<<<<<<
- * 
- * 
- */
-  __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = PyBytes_FromStringAndSize(__pyx_v_s.data() + 0, __pyx_v_s.size() - 0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[6]; __pyx_lineno = 26; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_1));
-  __pyx_r = ((PyObject *)__pyx_t_1);
-  __pyx_t_1 = 0;
-  goto __pyx_L0;
-
-  __pyx_r = Py_None; __Pyx_INCREF(Py_None);
-  goto __pyx_L0;
-  __pyx_L1_error:;
-  __Pyx_XDECREF(__pyx_t_1);
-  __Pyx_AddTraceback("string.to_py.__pyx_convert_string_to_py_", __pyx_clineno, __pyx_lineno, __pyx_filename);
-  __pyx_r = 0;
-  __pyx_L0:;
-  __Pyx_XGIVEREF(__pyx_r);
-  __Pyx_RefNannyFinishContext();
-  return __pyx_r;
-}
-
-static PyObject *__pyx_tp_new_5_cdec_DenseVector(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_5_cdec_DenseVector(PyTypeObject *t, PyObject *a, PyObject *k) {
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
   return o;
@@ -18867,7 +18764,7 @@ static PyTypeObject __pyx_type_5_cdec_DenseVector = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec_SparseVector(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_5_cdec_SparseVector(PyTypeObject *t, PyObject *a, PyObject *k) {
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
   return o;
@@ -19064,7 +18961,7 @@ static PyTypeObject __pyx_type_5_cdec_SparseVector = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec_NT(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_5_cdec_NT(PyTypeObject *t, PyObject *a, PyObject *k) {
   struct __pyx_obj_5_cdec_NT *p;
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
@@ -19097,11 +18994,11 @@ static int __pyx_tp_clear_5_cdec_NT(PyObject *o) {
   return 0;
 }
 
-static PyObject *__pyx_getprop_5_cdec_2NT_cat(PyObject *o, CYTHON_UNUSED void *x) {
+static PyObject *__pyx_getprop_5_cdec_2NT_cat(PyObject *o, 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) {
+static int __pyx_setprop_5_cdec_2NT_cat(PyObject *o, PyObject *v, void *x) {
   if (v) {
     return __pyx_pw_5_cdec_2NT_3cat_3__set__(o, v);
   }
@@ -19110,11 +19007,11 @@ static int __pyx_setprop_5_cdec_2NT_cat(PyObject *o, PyObject *v, CYTHON_UNUSED
   }
 }
 
-static PyObject *__pyx_getprop_5_cdec_2NT_ref(PyObject *o, CYTHON_UNUSED void *x) {
+static PyObject *__pyx_getprop_5_cdec_2NT_ref(PyObject *o, void *x) {
   return __pyx_pw_5_cdec_2NT_3ref_1__get__(o);
 }
 
-static int __pyx_setprop_5_cdec_2NT_ref(PyObject *o, PyObject *v, CYTHON_UNUSED void *x) {
+static int __pyx_setprop_5_cdec_2NT_ref(PyObject *o, PyObject *v, void *x) {
   if (v) {
     return __pyx_pw_5_cdec_2NT_3ref_3__set__(o, v);
   }
@@ -19288,7 +19185,7 @@ static PyTypeObject __pyx_type_5_cdec_NT = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec_NTRef(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_5_cdec_NTRef(PyTypeObject *t, PyObject *a, PyObject *k) {
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
   return o;
@@ -19298,11 +19195,11 @@ 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) {
+static PyObject *__pyx_getprop_5_cdec_5NTRef_ref(PyObject *o, 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) {
+static int __pyx_setprop_5_cdec_5NTRef_ref(PyObject *o, PyObject *v, void *x) {
   if (v) {
     return __pyx_pw_5_cdec_5NTRef_3ref_3__set__(o, v);
   }
@@ -19475,7 +19372,7 @@ static PyTypeObject __pyx_type_5_cdec_NTRef = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec_TRule(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_5_cdec_TRule(PyTypeObject *t, PyObject *a, PyObject *k) {
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
   return o;
@@ -19494,15 +19391,15 @@ static void __pyx_tp_dealloc_5_cdec_TRule(PyObject *o) {
   (*Py_TYPE(o)->tp_free)(o);
 }
 
-static PyObject *__pyx_getprop_5_cdec_5TRule_arity(PyObject *o, CYTHON_UNUSED void *x) {
+static PyObject *__pyx_getprop_5_cdec_5TRule_arity(PyObject *o, 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) {
+static PyObject *__pyx_getprop_5_cdec_5TRule_f(PyObject *o, void *x) {
   return __pyx_pw_5_cdec_5TRule_1f_1__get__(o);
 }
 
-static int __pyx_setprop_5_cdec_5TRule_f(PyObject *o, PyObject *v, CYTHON_UNUSED void *x) {
+static int __pyx_setprop_5_cdec_5TRule_f(PyObject *o, PyObject *v, void *x) {
   if (v) {
     return __pyx_pw_5_cdec_5TRule_1f_3__set__(o, v);
   }
@@ -19512,11 +19409,11 @@ static int __pyx_setprop_5_cdec_5TRule_f(PyObject *o, PyObject *v, CYTHON_UNUSED
   }
 }
 
-static PyObject *__pyx_getprop_5_cdec_5TRule_e(PyObject *o, CYTHON_UNUSED void *x) {
+static PyObject *__pyx_getprop_5_cdec_5TRule_e(PyObject *o, void *x) {
   return __pyx_pw_5_cdec_5TRule_1e_1__get__(o);
 }
 
-static int __pyx_setprop_5_cdec_5TRule_e(PyObject *o, PyObject *v, CYTHON_UNUSED void *x) {
+static int __pyx_setprop_5_cdec_5TRule_e(PyObject *o, PyObject *v, void *x) {
   if (v) {
     return __pyx_pw_5_cdec_5TRule_1e_3__set__(o, v);
   }
@@ -19526,11 +19423,11 @@ static int __pyx_setprop_5_cdec_5TRule_e(PyObject *o, PyObject *v, CYTHON_UNUSED
   }
 }
 
-static PyObject *__pyx_getprop_5_cdec_5TRule_a(PyObject *o, CYTHON_UNUSED void *x) {
+static PyObject *__pyx_getprop_5_cdec_5TRule_a(PyObject *o, void *x) {
   return __pyx_pw_5_cdec_5TRule_1a_1__get__(o);
 }
 
-static int __pyx_setprop_5_cdec_5TRule_a(PyObject *o, PyObject *v, CYTHON_UNUSED void *x) {
+static int __pyx_setprop_5_cdec_5TRule_a(PyObject *o, PyObject *v, void *x) {
   if (v) {
     return __pyx_pw_5_cdec_5TRule_1a_4__set__(o, v);
   }
@@ -19540,11 +19437,11 @@ 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) {
+static PyObject *__pyx_getprop_5_cdec_5TRule_scores(PyObject *o, void *x) {
   return __pyx_pw_5_cdec_5TRule_6scores_1__get__(o);
 }
 
-static int __pyx_setprop_5_cdec_5TRule_scores(PyObject *o, PyObject *v, CYTHON_UNUSED void *x) {
+static int __pyx_setprop_5_cdec_5TRule_scores(PyObject *o, PyObject *v, void *x) {
   if (v) {
     return __pyx_pw_5_cdec_5TRule_6scores_3__set__(o, v);
   }
@@ -19554,11 +19451,11 @@ static int __pyx_setprop_5_cdec_5TRule_scores(PyObject *o, PyObject *v, CYTHON_U
   }
 }
 
-static PyObject *__pyx_getprop_5_cdec_5TRule_lhs(PyObject *o, CYTHON_UNUSED void *x) {
+static PyObject *__pyx_getprop_5_cdec_5TRule_lhs(PyObject *o, void *x) {
   return __pyx_pw_5_cdec_5TRule_3lhs_1__get__(o);
 }
 
-static int __pyx_setprop_5_cdec_5TRule_lhs(PyObject *o, PyObject *v, CYTHON_UNUSED void *x) {
+static int __pyx_setprop_5_cdec_5TRule_lhs(PyObject *o, PyObject *v, void *x) {
   if (v) {
     return __pyx_pw_5_cdec_5TRule_3lhs_3__set__(o, v);
   }
@@ -19864,11 +19761,7 @@ static PyTypeObject __pyx_type_5_cdec_MRule = {
   &__pyx_tp_as_mapping_MRule, /*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*/
   &__pyx_tp_as_buffer_MRule, /*tp_as_buffer*/
@@ -19904,7 +19797,7 @@ static PyTypeObject __pyx_type_5_cdec_MRule = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec_Grammar(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_5_cdec_Grammar(PyTypeObject *t, PyObject *a, PyObject *k) {
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
   return o;
@@ -19923,11 +19816,11 @@ static void __pyx_tp_dealloc_5_cdec_Grammar(PyObject *o) {
   (*Py_TYPE(o)->tp_free)(o);
 }
 
-static PyObject *__pyx_getprop_5_cdec_7Grammar_name(PyObject *o, CYTHON_UNUSED void *x) {
+static PyObject *__pyx_getprop_5_cdec_7Grammar_name(PyObject *o, void *x) {
   return __pyx_pw_5_cdec_7Grammar_4name_1__get__(o);
 }
 
-static int __pyx_setprop_5_cdec_7Grammar_name(PyObject *o, PyObject *v, CYTHON_UNUSED void *x) {
+static int __pyx_setprop_5_cdec_7Grammar_name(PyObject *o, PyObject *v, void *x) {
   if (v) {
     return __pyx_pw_5_cdec_7Grammar_4name_3__set__(o, v);
   }
@@ -20241,11 +20134,7 @@ static PyTypeObject __pyx_type_5_cdec_TextGrammar = {
   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*/
@@ -20271,7 +20160,7 @@ static PyTypeObject __pyx_type_5_cdec_TextGrammar = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec_Hypergraph(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_5_cdec_Hypergraph(PyTypeObject *t, PyObject *a, PyObject *k) {
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
   return o;
@@ -20290,19 +20179,19 @@ static void __pyx_tp_dealloc_5_cdec_Hypergraph(PyObject *o) {
   (*Py_TYPE(o)->tp_free)(o);
 }
 
-static PyObject *__pyx_getprop_5_cdec_10Hypergraph_edges(PyObject *o, CYTHON_UNUSED void *x) {
+static PyObject *__pyx_getprop_5_cdec_10Hypergraph_edges(PyObject *o, 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) {
+static PyObject *__pyx_getprop_5_cdec_10Hypergraph_nodes(PyObject *o, 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) {
+static PyObject *__pyx_getprop_5_cdec_10Hypergraph_goal(PyObject *o, void *x) {
   return __pyx_pw_5_cdec_10Hypergraph_4goal_1__get__(o);
 }
 
-static PyObject *__pyx_getprop_5_cdec_10Hypergraph_npaths(PyObject *o, CYTHON_UNUSED void *x) {
+static PyObject *__pyx_getprop_5_cdec_10Hypergraph_npaths(PyObject *o, void *x) {
   return __pyx_pw_5_cdec_10Hypergraph_6npaths_1__get__(o);
 }
 
@@ -20315,11 +20204,12 @@ static PyMethodDef __pyx_methods_5_cdec_Hypergraph[] = {
   {__Pyx_NAMESTR("kbest_trees"), (PyCFunction)__pyx_pw_5_cdec_10Hypergraph_14kbest_trees, METH_O, __Pyx_DOCSTR(0)},
   {__Pyx_NAMESTR("kbest_features"), (PyCFunction)__pyx_pw_5_cdec_10Hypergraph_17kbest_features, METH_O, __Pyx_DOCSTR(0)},
   {__Pyx_NAMESTR("sample"), (PyCFunction)__pyx_pw_5_cdec_10Hypergraph_20sample, METH_O, __Pyx_DOCSTR(0)},
-  {__Pyx_NAMESTR("intersect"), (PyCFunction)__pyx_pw_5_cdec_10Hypergraph_23intersect, METH_O, __Pyx_DOCSTR(0)},
-  {__Pyx_NAMESTR("prune"), (PyCFunction)__pyx_pw_5_cdec_10Hypergraph_25prune, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)},
-  {__Pyx_NAMESTR("lattice"), (PyCFunction)__pyx_pw_5_cdec_10Hypergraph_27lattice, METH_NOARGS, __Pyx_DOCSTR(0)},
-  {__Pyx_NAMESTR("reweight"), (PyCFunction)__pyx_pw_5_cdec_10Hypergraph_29reweight, METH_O, __Pyx_DOCSTR(0)},
-  {__Pyx_NAMESTR("inside_outside"), (PyCFunction)__pyx_pw_5_cdec_10Hypergraph_31inside_outside, METH_NOARGS, __Pyx_DOCSTR(0)},
+  {__Pyx_NAMESTR("sample_trees"), (PyCFunction)__pyx_pw_5_cdec_10Hypergraph_23sample_trees, METH_O, __Pyx_DOCSTR(0)},
+  {__Pyx_NAMESTR("intersect"), (PyCFunction)__pyx_pw_5_cdec_10Hypergraph_26intersect, METH_O, __Pyx_DOCSTR(0)},
+  {__Pyx_NAMESTR("prune"), (PyCFunction)__pyx_pw_5_cdec_10Hypergraph_28prune, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)},
+  {__Pyx_NAMESTR("lattice"), (PyCFunction)__pyx_pw_5_cdec_10Hypergraph_30lattice, METH_NOARGS, __Pyx_DOCSTR(0)},
+  {__Pyx_NAMESTR("reweight"), (PyCFunction)__pyx_pw_5_cdec_10Hypergraph_32reweight, METH_O, __Pyx_DOCSTR(0)},
+  {__Pyx_NAMESTR("inside_outside"), (PyCFunction)__pyx_pw_5_cdec_10Hypergraph_34inside_outside, METH_NOARGS, __Pyx_DOCSTR(0)},
   {0, 0, 0, 0}
 };
 
@@ -20486,7 +20376,7 @@ static PyTypeObject __pyx_type_5_cdec_Hypergraph = {
 };
 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) {
+static PyObject *__pyx_tp_new_5_cdec_HypergraphEdge(PyTypeObject *t, PyObject *a, PyObject *k) {
   struct __pyx_obj_5_cdec_HypergraphEdge *p;
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
@@ -20520,31 +20410,31 @@ static int __pyx_tp_clear_5_cdec_HypergraphEdge(PyObject *o) {
   return 0;
 }
 
-static PyObject *__pyx_getprop_5_cdec_14HypergraphEdge_head_node(PyObject *o, CYTHON_UNUSED void *x) {
+static PyObject *__pyx_getprop_5_cdec_14HypergraphEdge_head_node(PyObject *o, 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) {
+static PyObject *__pyx_getprop_5_cdec_14HypergraphEdge_tail_nodes(PyObject *o, 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) {
+static PyObject *__pyx_getprop_5_cdec_14HypergraphEdge_span(PyObject *o, void *x) {
   return __pyx_pw_5_cdec_14HypergraphEdge_4span_1__get__(o);
 }
 
-static PyObject *__pyx_getprop_5_cdec_14HypergraphEdge_feature_values(PyObject *o, CYTHON_UNUSED void *x) {
+static PyObject *__pyx_getprop_5_cdec_14HypergraphEdge_feature_values(PyObject *o, 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) {
+static PyObject *__pyx_getprop_5_cdec_14HypergraphEdge_prob(PyObject *o, void *x) {
   return __pyx_pw_5_cdec_14HypergraphEdge_4prob_1__get__(o);
 }
 
-static PyObject *__pyx_getprop_5_cdec_14HypergraphEdge_trule(PyObject *o, CYTHON_UNUSED void *x) {
+static PyObject *__pyx_getprop_5_cdec_14HypergraphEdge_trule(PyObject *o, void *x) {
   return __pyx_pw_5_cdec_14HypergraphEdge_5trule_1__get__(o);
 }
 
-static int __pyx_setprop_5_cdec_14HypergraphEdge_trule(PyObject *o, PyObject *v, CYTHON_UNUSED void *x) {
+static int __pyx_setprop_5_cdec_14HypergraphEdge_trule(PyObject *o, PyObject *v, void *x) {
   if (v) {
     return __pyx_pw_5_cdec_14HypergraphEdge_5trule_3__set__(o, v);
   }
@@ -20722,7 +20612,7 @@ static PyTypeObject __pyx_type_5_cdec_HypergraphEdge = {
 };
 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) {
+static PyObject *__pyx_tp_new_5_cdec_HypergraphNode(PyTypeObject *t, PyObject *a, PyObject *k) {
   struct __pyx_obj_5_cdec_HypergraphNode *p;
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
@@ -20735,19 +20625,19 @@ 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) {
+static PyObject *__pyx_getprop_5_cdec_14HypergraphNode_in_edges(PyObject *o, 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) {
+static PyObject *__pyx_getprop_5_cdec_14HypergraphNode_out_edges(PyObject *o, void *x) {
   return __pyx_pw_5_cdec_14HypergraphNode_9out_edges_1__get__(o);
 }
 
-static PyObject *__pyx_getprop_5_cdec_14HypergraphNode_span(PyObject *o, CYTHON_UNUSED void *x) {
+static PyObject *__pyx_getprop_5_cdec_14HypergraphNode_span(PyObject *o, void *x) {
   return __pyx_pw_5_cdec_14HypergraphNode_4span_1__get__(o);
 }
 
-static PyObject *__pyx_getprop_5_cdec_14HypergraphNode_cat(PyObject *o, CYTHON_UNUSED void *x) {
+static PyObject *__pyx_getprop_5_cdec_14HypergraphNode_cat(PyObject *o, void *x) {
   return __pyx_pw_5_cdec_14HypergraphNode_3cat_1__get__(o);
 }
 
@@ -21116,7 +21006,7 @@ static PyTypeObject __pyx_type_5_cdec_Lattice = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec_Candidate(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_5_cdec_Candidate(PyTypeObject *t, PyObject *a, PyObject *k) {
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
   return o;
@@ -21126,19 +21016,19 @@ static void __pyx_tp_dealloc_5_cdec_Candidate(PyObject *o) {
   (*Py_TYPE(o)->tp_free)(o);
 }
 
-static PyObject *__pyx_getprop_5_cdec_9Candidate_words(PyObject *o, CYTHON_UNUSED void *x) {
+static PyObject *__pyx_getprop_5_cdec_9Candidate_words(PyObject *o, void *x) {
   return __pyx_pw_5_cdec_9Candidate_5words_1__get__(o);
 }
 
-static PyObject *__pyx_getprop_5_cdec_9Candidate_fmap(PyObject *o, CYTHON_UNUSED void *x) {
+static PyObject *__pyx_getprop_5_cdec_9Candidate_fmap(PyObject *o, void *x) {
   return __pyx_pw_5_cdec_9Candidate_4fmap_1__get__(o);
 }
 
-static PyObject *__pyx_getprop_5_cdec_9Candidate_score(PyObject *o, CYTHON_UNUSED void *x) {
+static PyObject *__pyx_getprop_5_cdec_9Candidate_score(PyObject *o, void *x) {
   return __pyx_pw_5_cdec_9Candidate_5score_1__get__(o);
 }
 
-static int __pyx_setprop_5_cdec_9Candidate_score(PyObject *o, PyObject *v, CYTHON_UNUSED void *x) {
+static int __pyx_setprop_5_cdec_9Candidate_score(PyObject *o, PyObject *v, void *x) {
   if (v) {
     return __pyx_pw_5_cdec_9Candidate_5score_3__set__(o, v);
   }
@@ -21313,7 +21203,7 @@ static PyTypeObject __pyx_type_5_cdec_Candidate = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec_SufficientStats(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_5_cdec_SufficientStats(PyTypeObject *t, PyObject *a, PyObject *k) {
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
   return o;
@@ -21339,11 +21229,11 @@ static PyObject *__pyx_sq_item_5_cdec_SufficientStats(PyObject *o, Py_ssize_t i)
   return r;
 }
 
-static PyObject *__pyx_getprop_5_cdec_15SufficientStats_score(PyObject *o, CYTHON_UNUSED void *x) {
+static PyObject *__pyx_getprop_5_cdec_15SufficientStats_score(PyObject *o, void *x) {
   return __pyx_pw_5_cdec_15SufficientStats_5score_1__get__(o);
 }
 
-static PyObject *__pyx_getprop_5_cdec_15SufficientStats_detail(PyObject *o, CYTHON_UNUSED void *x) {
+static PyObject *__pyx_getprop_5_cdec_15SufficientStats_detail(PyObject *o, void *x) {
   return __pyx_pw_5_cdec_15SufficientStats_6detail_1__get__(o);
 }
 
@@ -21699,7 +21589,7 @@ static PyTypeObject __pyx_type_5_cdec_CandidateSet = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec_SegmentEvaluator(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_5_cdec_SegmentEvaluator(PyTypeObject *t, PyObject *a, PyObject *k) {
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
   return o;
@@ -22058,7 +21948,7 @@ static PyTypeObject __pyx_type_5_cdec_Scorer = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec_Metric(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_5_cdec_Metric(PyTypeObject *t, PyObject *a, PyObject *k) {
   struct __pyx_obj_5_cdec_Metric *p;
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
@@ -22299,11 +22189,11 @@ static int __pyx_tp_clear_5_cdec_Decoder(PyObject *o) {
   return 0;
 }
 
-static PyObject *__pyx_getprop_5_cdec_7Decoder_weights(PyObject *o, CYTHON_UNUSED void *x) {
+static PyObject *__pyx_getprop_5_cdec_7Decoder_weights(PyObject *o, 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) {
+static int __pyx_setprop_5_cdec_7Decoder_weights(PyObject *o, PyObject *v, void *x) {
   if (v) {
     return __pyx_pw_5_cdec_7Decoder_7weights_3__set__(o, v);
   }
@@ -22313,7 +22203,7 @@ static int __pyx_setprop_5_cdec_7Decoder_weights(PyObject *o, PyObject *v, CYTHO
   }
 }
 
-static PyObject *__pyx_getprop_5_cdec_7Decoder_formalism(PyObject *o, CYTHON_UNUSED void *x) {
+static PyObject *__pyx_getprop_5_cdec_7Decoder_formalism(PyObject *o, void *x) {
   return __pyx_pw_5_cdec_7Decoder_9formalism_1__get__(o);
 }
 
@@ -22483,7 +22373,7 @@ static PyTypeObject __pyx_type_5_cdec_Decoder = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct____iter__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct____iter__(PyTypeObject *t, PyObject *a, PyObject *k) {
   struct __pyx_obj_5_cdec___pyx_scope_struct____iter__ *p;
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
@@ -22674,7 +22564,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct____iter__ = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_1___iter__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_1___iter__(PyTypeObject *t, PyObject *a, PyObject *k) {
   struct __pyx_obj_5_cdec___pyx_scope_struct_1___iter__ *p;
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
@@ -22865,7 +22755,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_1___iter__ = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_2__phrase(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_2__phrase(PyTypeObject *t, PyObject *a, PyObject *k) {
   struct __pyx_obj_5_cdec___pyx_scope_struct_2__phrase *p;
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
@@ -23056,7 +22946,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_2__phrase = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_3_genexpr(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_3_genexpr(PyTypeObject *t, PyObject *a, PyObject *k) {
   struct __pyx_obj_5_cdec___pyx_scope_struct_3_genexpr *p;
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
@@ -23263,7 +23153,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_3_genexpr = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_4___get__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_4___get__(PyTypeObject *t, PyObject *a, PyObject *k) {
   struct __pyx_obj_5_cdec___pyx_scope_struct_4___get__ *p;
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
@@ -23454,7 +23344,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_4___get__ = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_5___str__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_5___str__(PyTypeObject *t, PyObject *a, PyObject *k) {
   struct __pyx_obj_5_cdec___pyx_scope_struct_5___str__ *p;
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
@@ -23645,7 +23535,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_5___str__ = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_6_genexpr(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_6_genexpr(PyTypeObject *t, PyObject *a, PyObject *k) {
   struct __pyx_obj_5_cdec___pyx_scope_struct_6_genexpr *p;
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
@@ -23852,7 +23742,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_6_genexpr = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_7___iter__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_7___iter__(PyTypeObject *t, PyObject *a, PyObject *k) {
   struct __pyx_obj_5_cdec___pyx_scope_struct_7___iter__ *p;
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
@@ -24051,7 +23941,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_7___iter__ = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_8_kbest(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_8_kbest(PyTypeObject *t, PyObject *a, PyObject *k) {
   struct __pyx_obj_5_cdec___pyx_scope_struct_8_kbest *p;
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
@@ -24250,7 +24140,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_8_kbest = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_9_kbest_trees(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_9_kbest_trees(PyTypeObject *t, PyObject *a, PyObject *k) {
   struct __pyx_obj_5_cdec___pyx_scope_struct_9_kbest_trees *p;
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
@@ -24465,7 +24355,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_9_kbest_trees = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_10_kbest_features(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_10_kbest_features(PyTypeObject *t, PyObject *a, PyObject *k) {
   struct __pyx_obj_5_cdec___pyx_scope_struct_10_kbest_features *p;
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
@@ -24672,7 +24562,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_10_kbest_features = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_11_sample(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_11_sample(PyTypeObject *t, PyObject *a, PyObject *k) {
   struct __pyx_obj_5_cdec___pyx_scope_struct_11_sample *p;
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
@@ -24863,32 +24753,32 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_11_sample = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_12___get__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_12___get__ *p;
+static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_12_sample_trees(PyTypeObject *t, PyObject *a, PyObject *k) {
+  struct __pyx_obj_5_cdec___pyx_scope_struct_12_sample_trees *p;
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
-  p = ((struct __pyx_obj_5_cdec___pyx_scope_struct_12___get__ *)o);
+  p = ((struct __pyx_obj_5_cdec___pyx_scope_struct_12_sample_trees *)o);
   p->__pyx_v_self = 0;
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec___pyx_scope_struct_12___get__(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_12___get__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_12___get__ *)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;
   Py_XDECREF(((PyObject *)p->__pyx_v_self));
   (*Py_TYPE(o)->tp_free)(o);
 }
 
-static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_12___get__(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_12_sample_trees(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_5_cdec___pyx_scope_struct_12___get__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_12___get__ *)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;
   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_12___get__(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_12___get__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_12___get__ *)o;
+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;
   PyObject* tmp;
   tmp = ((PyObject*)p->__pyx_v_self);
   p->__pyx_v_self = ((struct __pyx_obj_5_cdec_Hypergraph *)Py_None); Py_INCREF(Py_None);
@@ -24896,11 +24786,11 @@ static int __pyx_tp_clear_5_cdec___pyx_scope_struct_12___get__(PyObject *o) {
   return 0;
 }
 
-static PyMethodDef __pyx_methods_5_cdec___pyx_scope_struct_12___get__[] = {
+static PyMethodDef __pyx_methods_5_cdec___pyx_scope_struct_12_sample_trees[] = {
   {0, 0, 0, 0}
 };
 
-static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_12___get__ = {
+static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_12_sample_trees = {
   0, /*nb_add*/
   0, /*nb_subtract*/
   0, /*nb_multiply*/
@@ -24958,7 +24848,7 @@ static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_12___get__ = {
   #endif
 };
 
-static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_12___get__ = {
+static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_12_sample_trees = {
   0, /*sq_length*/
   0, /*sq_concat*/
   0, /*sq_repeat*/
@@ -24971,13 +24861,13 @@ static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_12___get__ = {
   0, /*sq_inplace_repeat*/
 };
 
-static PyMappingMethods __pyx_tp_as_mapping___pyx_scope_struct_12___get__ = {
+static PyMappingMethods __pyx_tp_as_mapping___pyx_scope_struct_12_sample_trees = {
   0, /*mp_length*/
   0, /*mp_subscript*/
   0, /*mp_ass_subscript*/
 };
 
-static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_12___get__ = {
+static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_12_sample_trees = {
   #if PY_MAJOR_VERSION < 3
   0, /*bf_getreadbuffer*/
   #endif
@@ -24998,12 +24888,12 @@ static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_12___get__ = {
   #endif
 };
 
-static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_12___get__ = {
+static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_12_sample_trees = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.__pyx_scope_struct_12___get__"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_12___get__), /*tp_basicsize*/
+  __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*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec___pyx_scope_struct_12___get__, /*tp_dealloc*/
+  __pyx_tp_dealloc_5_cdec___pyx_scope_struct_12_sample_trees, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -25013,24 +24903,24 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_12___get__ = {
   0, /*reserved*/
   #endif
   0, /*tp_repr*/
-  &__pyx_tp_as_number___pyx_scope_struct_12___get__, /*tp_as_number*/
-  &__pyx_tp_as_sequence___pyx_scope_struct_12___get__, /*tp_as_sequence*/
-  &__pyx_tp_as_mapping___pyx_scope_struct_12___get__, /*tp_as_mapping*/
+  &__pyx_tp_as_number___pyx_scope_struct_12_sample_trees, /*tp_as_number*/
+  &__pyx_tp_as_sequence___pyx_scope_struct_12_sample_trees, /*tp_as_sequence*/
+  &__pyx_tp_as_mapping___pyx_scope_struct_12_sample_trees, /*tp_as_mapping*/
   0, /*tp_hash*/
   0, /*tp_call*/
   0, /*tp_str*/
   0, /*tp_getattro*/
   0, /*tp_setattro*/
-  &__pyx_tp_as_buffer___pyx_scope_struct_12___get__, /*tp_as_buffer*/
+  &__pyx_tp_as_buffer___pyx_scope_struct_12_sample_trees, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_5_cdec___pyx_scope_struct_12___get__, /*tp_traverse*/
-  __pyx_tp_clear_5_cdec___pyx_scope_struct_12___get__, /*tp_clear*/
+  __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*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec___pyx_scope_struct_12___get__, /*tp_methods*/
+  __pyx_methods_5_cdec___pyx_scope_struct_12_sample_trees, /*tp_methods*/
   0, /*tp_members*/
   0, /*tp_getset*/
   0, /*tp_base*/
@@ -25040,7 +24930,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_12___get__ = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec___pyx_scope_struct_12___get__, /*tp_new*/
+  __pyx_tp_new_5_cdec___pyx_scope_struct_12_sample_trees, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -25054,7 +24944,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_12___get__ = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_13___get__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_13___get__(PyTypeObject *t, PyObject *a, PyObject *k) {
   struct __pyx_obj_5_cdec___pyx_scope_struct_13___get__ *p;
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
@@ -25245,7 +25135,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_13___get__ = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_14___get__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_14___get__(PyTypeObject *t, PyObject *a, PyObject *k) {
   struct __pyx_obj_5_cdec___pyx_scope_struct_14___get__ *p;
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
@@ -25273,7 +25163,7 @@ 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;
   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_5_cdec_Hypergraph *)Py_None); Py_INCREF(Py_None);
   Py_XDECREF(tmp);
   return 0;
 }
@@ -25436,7 +25326,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_14___get__ = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_15___get__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_15___get__(PyTypeObject *t, PyObject *a, PyObject *k) {
   struct __pyx_obj_5_cdec___pyx_scope_struct_15___get__ *p;
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
@@ -25464,7 +25354,7 @@ 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;
   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_5_cdec_HypergraphEdge *)Py_None); Py_INCREF(Py_None);
   Py_XDECREF(tmp);
   return 0;
 }
@@ -25627,7 +25517,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_15___get__ = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_16___get__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_16___get__(PyTypeObject *t, PyObject *a, PyObject *k) {
   struct __pyx_obj_5_cdec___pyx_scope_struct_16___get__ *p;
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
@@ -25818,32 +25708,223 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_16___get__ = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_17___iter__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_17___iter__ *p;
+static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_17___get__(PyTypeObject *t, PyObject *a, PyObject *k) {
+  struct __pyx_obj_5_cdec___pyx_scope_struct_17___get__ *p;
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
-  p = ((struct __pyx_obj_5_cdec___pyx_scope_struct_17___iter__ *)o);
+  p = ((struct __pyx_obj_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_17___iter__(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_17___iter__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_17___iter__ *)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;
   Py_XDECREF(((PyObject *)p->__pyx_v_self));
   (*Py_TYPE(o)->tp_free)(o);
 }
 
-static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_17___iter__(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_17___get__(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_5_cdec___pyx_scope_struct_17___iter__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_17___iter__ *)o;
+  struct __pyx_obj_5_cdec___pyx_scope_struct_17___get__ *p = (struct __pyx_obj_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_17___iter__(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_17___iter__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_17___iter__ *)o;
+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;
+  PyObject* tmp;
+  tmp = ((PyObject*)p->__pyx_v_self);
+  p->__pyx_v_self = ((struct __pyx_obj_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__[] = {
+  {0, 0, 0, 0}
+};
+
+static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_17___get__ = {
+  0, /*nb_add*/
+  0, /*nb_subtract*/
+  0, /*nb_multiply*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_divide*/
+  #endif
+  0, /*nb_remainder*/
+  0, /*nb_divmod*/
+  0, /*nb_power*/
+  0, /*nb_negative*/
+  0, /*nb_positive*/
+  0, /*nb_absolute*/
+  0, /*nb_nonzero*/
+  0, /*nb_invert*/
+  0, /*nb_lshift*/
+  0, /*nb_rshift*/
+  0, /*nb_and*/
+  0, /*nb_xor*/
+  0, /*nb_or*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_coerce*/
+  #endif
+  0, /*nb_int*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_long*/
+  #else
+  0, /*reserved*/
+  #endif
+  0, /*nb_float*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_oct*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_hex*/
+  #endif
+  0, /*nb_inplace_add*/
+  0, /*nb_inplace_subtract*/
+  0, /*nb_inplace_multiply*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*nb_inplace_divide*/
+  #endif
+  0, /*nb_inplace_remainder*/
+  0, /*nb_inplace_power*/
+  0, /*nb_inplace_lshift*/
+  0, /*nb_inplace_rshift*/
+  0, /*nb_inplace_and*/
+  0, /*nb_inplace_xor*/
+  0, /*nb_inplace_or*/
+  0, /*nb_floor_divide*/
+  0, /*nb_true_divide*/
+  0, /*nb_inplace_floor_divide*/
+  0, /*nb_inplace_true_divide*/
+  #if PY_VERSION_HEX >= 0x02050000
+  0, /*nb_index*/
+  #endif
+};
+
+static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_17___get__ = {
+  0, /*sq_length*/
+  0, /*sq_concat*/
+  0, /*sq_repeat*/
+  0, /*sq_item*/
+  0, /*sq_slice*/
+  0, /*sq_ass_item*/
+  0, /*sq_ass_slice*/
+  0, /*sq_contains*/
+  0, /*sq_inplace_concat*/
+  0, /*sq_inplace_repeat*/
+};
+
+static PyMappingMethods __pyx_tp_as_mapping___pyx_scope_struct_17___get__ = {
+  0, /*mp_length*/
+  0, /*mp_subscript*/
+  0, /*mp_ass_subscript*/
+};
+
+static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_17___get__ = {
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getreadbuffer*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getwritebuffer*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getsegcount*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getcharbuffer*/
+  #endif
+  #if PY_VERSION_HEX >= 0x02060000
+  0, /*bf_getbuffer*/
+  #endif
+  #if PY_VERSION_HEX >= 0x02060000
+  0, /*bf_releasebuffer*/
+  #endif
+};
+
+static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_17___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*/
+  0, /*tp_itemsize*/
+  __pyx_tp_dealloc_5_cdec___pyx_scope_struct_17___get__, /*tp_dealloc*/
+  0, /*tp_print*/
+  0, /*tp_getattr*/
+  0, /*tp_setattr*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*tp_compare*/
+  #else
+  0, /*reserved*/
+  #endif
+  0, /*tp_repr*/
+  &__pyx_tp_as_number___pyx_scope_struct_17___get__, /*tp_as_number*/
+  &__pyx_tp_as_sequence___pyx_scope_struct_17___get__, /*tp_as_sequence*/
+  &__pyx_tp_as_mapping___pyx_scope_struct_17___get__, /*tp_as_mapping*/
+  0, /*tp_hash*/
+  0, /*tp_call*/
+  0, /*tp_str*/
+  0, /*tp_getattro*/
+  0, /*tp_setattro*/
+  &__pyx_tp_as_buffer___pyx_scope_struct_17___get__, /*tp_as_buffer*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
+  0, /*tp_doc*/
+  __pyx_tp_traverse_5_cdec___pyx_scope_struct_17___get__, /*tp_traverse*/
+  __pyx_tp_clear_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_17___get__, /*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___pyx_scope_struct_17___get__, /*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___pyx_scope_struct_18___iter__(PyTypeObject *t, PyObject *a, PyObject *k) {
+  struct __pyx_obj_5_cdec___pyx_scope_struct_18___iter__ *p;
+  PyObject *o = (*t->tp_alloc)(t, 0);
+  if (!o) return 0;
+  p = ((struct __pyx_obj_5_cdec___pyx_scope_struct_18___iter__ *)o);
+  p->__pyx_v_self = 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;
+  Py_XDECREF(((PyObject *)p->__pyx_v_self));
+  (*Py_TYPE(o)->tp_free)(o);
+}
+
+static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_18___iter__(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;
+  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_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;
   PyObject* tmp;
   tmp = ((PyObject*)p->__pyx_v_self);
   p->__pyx_v_self = ((struct __pyx_obj_5_cdec_Lattice *)Py_None); Py_INCREF(Py_None);
@@ -25851,11 +25932,11 @@ static int __pyx_tp_clear_5_cdec___pyx_scope_struct_17___iter__(PyObject *o) {
   return 0;
 }
 
-static PyMethodDef __pyx_methods_5_cdec___pyx_scope_struct_17___iter__[] = {
+static PyMethodDef __pyx_methods_5_cdec___pyx_scope_struct_18___iter__[] = {
   {0, 0, 0, 0}
 };
 
-static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_17___iter__ = {
+static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_18___iter__ = {
   0, /*nb_add*/
   0, /*nb_subtract*/
   0, /*nb_multiply*/
@@ -25913,7 +25994,7 @@ static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_17___iter__ = {
   #endif
 };
 
-static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_17___iter__ = {
+static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_18___iter__ = {
   0, /*sq_length*/
   0, /*sq_concat*/
   0, /*sq_repeat*/
@@ -25926,13 +26007,13 @@ static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_17___iter__ = {
   0, /*sq_inplace_repeat*/
 };
 
-static PyMappingMethods __pyx_tp_as_mapping___pyx_scope_struct_17___iter__ = {
+static PyMappingMethods __pyx_tp_as_mapping___pyx_scope_struct_18___iter__ = {
   0, /*mp_length*/
   0, /*mp_subscript*/
   0, /*mp_ass_subscript*/
 };
 
-static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_17___iter__ = {
+static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_18___iter__ = {
   #if PY_MAJOR_VERSION < 3
   0, /*bf_getreadbuffer*/
   #endif
@@ -25953,12 +26034,12 @@ static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_17___iter__ = {
   #endif
 };
 
-static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_17___iter__ = {
+static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_18___iter__ = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.__pyx_scope_struct_17___iter__"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_17___iter__), /*tp_basicsize*/
+  __Pyx_NAMESTR("_cdec.__pyx_scope_struct_18___iter__"), /*tp_name*/
+  sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_18___iter__), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec___pyx_scope_struct_17___iter__, /*tp_dealloc*/
+  __pyx_tp_dealloc_5_cdec___pyx_scope_struct_18___iter__, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -25968,24 +26049,24 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_17___iter__ = {
   0, /*reserved*/
   #endif
   0, /*tp_repr*/
-  &__pyx_tp_as_number___pyx_scope_struct_17___iter__, /*tp_as_number*/
-  &__pyx_tp_as_sequence___pyx_scope_struct_17___iter__, /*tp_as_sequence*/
-  &__pyx_tp_as_mapping___pyx_scope_struct_17___iter__, /*tp_as_mapping*/
+  &__pyx_tp_as_number___pyx_scope_struct_18___iter__, /*tp_as_number*/
+  &__pyx_tp_as_sequence___pyx_scope_struct_18___iter__, /*tp_as_sequence*/
+  &__pyx_tp_as_mapping___pyx_scope_struct_18___iter__, /*tp_as_mapping*/
   0, /*tp_hash*/
   0, /*tp_call*/
   0, /*tp_str*/
   0, /*tp_getattro*/
   0, /*tp_setattro*/
-  &__pyx_tp_as_buffer___pyx_scope_struct_17___iter__, /*tp_as_buffer*/
+  &__pyx_tp_as_buffer___pyx_scope_struct_18___iter__, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_5_cdec___pyx_scope_struct_17___iter__, /*tp_traverse*/
-  __pyx_tp_clear_5_cdec___pyx_scope_struct_17___iter__, /*tp_clear*/
+  __pyx_tp_traverse_5_cdec___pyx_scope_struct_18___iter__, /*tp_traverse*/
+  __pyx_tp_clear_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_17___iter__, /*tp_methods*/
+  __pyx_methods_5_cdec___pyx_scope_struct_18___iter__, /*tp_methods*/
   0, /*tp_members*/
   0, /*tp_getset*/
   0, /*tp_base*/
@@ -25995,7 +26076,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_17___iter__ = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec___pyx_scope_struct_17___iter__, /*tp_new*/
+  __pyx_tp_new_5_cdec___pyx_scope_struct_18___iter__, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -26009,32 +26090,32 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_17___iter__ = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_18_todot(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_18_todot *p;
+static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_19_todot(PyTypeObject *t, PyObject *a, PyObject *k) {
+  struct __pyx_obj_5_cdec___pyx_scope_struct_19_todot *p;
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
-  p = ((struct __pyx_obj_5_cdec___pyx_scope_struct_18_todot *)o);
+  p = ((struct __pyx_obj_5_cdec___pyx_scope_struct_19_todot *)o);
   p->__pyx_v_self = 0;
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec___pyx_scope_struct_18_todot(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_18_todot *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_18_todot *)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;
   Py_XDECREF(((PyObject *)p->__pyx_v_self));
   (*Py_TYPE(o)->tp_free)(o);
 }
 
-static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_18_todot(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_19_todot(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_5_cdec___pyx_scope_struct_18_todot *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_18_todot *)o;
+  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;
   }
   return 0;
 }
 
-static int __pyx_tp_clear_5_cdec___pyx_scope_struct_18_todot(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_18_todot *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_18_todot *)o;
+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;
   PyObject* tmp;
   tmp = ((PyObject*)p->__pyx_v_self);
   p->__pyx_v_self = ((struct __pyx_obj_5_cdec_Lattice *)Py_None); Py_INCREF(Py_None);
@@ -26042,11 +26123,11 @@ static int __pyx_tp_clear_5_cdec___pyx_scope_struct_18_todot(PyObject *o) {
   return 0;
 }
 
-static PyMethodDef __pyx_methods_5_cdec___pyx_scope_struct_18_todot[] = {
+static PyMethodDef __pyx_methods_5_cdec___pyx_scope_struct_19_todot[] = {
   {0, 0, 0, 0}
 };
 
-static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_18_todot = {
+static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_19_todot = {
   0, /*nb_add*/
   0, /*nb_subtract*/
   0, /*nb_multiply*/
@@ -26104,7 +26185,7 @@ static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_18_todot = {
   #endif
 };
 
-static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_18_todot = {
+static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_19_todot = {
   0, /*sq_length*/
   0, /*sq_concat*/
   0, /*sq_repeat*/
@@ -26117,13 +26198,13 @@ static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_18_todot = {
   0, /*sq_inplace_repeat*/
 };
 
-static PyMappingMethods __pyx_tp_as_mapping___pyx_scope_struct_18_todot = {
+static PyMappingMethods __pyx_tp_as_mapping___pyx_scope_struct_19_todot = {
   0, /*mp_length*/
   0, /*mp_subscript*/
   0, /*mp_ass_subscript*/
 };
 
-static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_18_todot = {
+static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_19_todot = {
   #if PY_MAJOR_VERSION < 3
   0, /*bf_getreadbuffer*/
   #endif
@@ -26144,12 +26225,12 @@ static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_18_todot = {
   #endif
 };
 
-static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_18_todot = {
+static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_19_todot = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.__pyx_scope_struct_18_todot"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_18_todot), /*tp_basicsize*/
+  __Pyx_NAMESTR("_cdec.__pyx_scope_struct_19_todot"), /*tp_name*/
+  sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_19_todot), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec___pyx_scope_struct_18_todot, /*tp_dealloc*/
+  __pyx_tp_dealloc_5_cdec___pyx_scope_struct_19_todot, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -26159,24 +26240,24 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_18_todot = {
   0, /*reserved*/
   #endif
   0, /*tp_repr*/
-  &__pyx_tp_as_number___pyx_scope_struct_18_todot, /*tp_as_number*/
-  &__pyx_tp_as_sequence___pyx_scope_struct_18_todot, /*tp_as_sequence*/
-  &__pyx_tp_as_mapping___pyx_scope_struct_18_todot, /*tp_as_mapping*/
+  &__pyx_tp_as_number___pyx_scope_struct_19_todot, /*tp_as_number*/
+  &__pyx_tp_as_sequence___pyx_scope_struct_19_todot, /*tp_as_sequence*/
+  &__pyx_tp_as_mapping___pyx_scope_struct_19_todot, /*tp_as_mapping*/
   0, /*tp_hash*/
   0, /*tp_call*/
   0, /*tp_str*/
   0, /*tp_getattro*/
   0, /*tp_setattro*/
-  &__pyx_tp_as_buffer___pyx_scope_struct_18_todot, /*tp_as_buffer*/
+  &__pyx_tp_as_buffer___pyx_scope_struct_19_todot, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_5_cdec___pyx_scope_struct_18_todot, /*tp_traverse*/
-  __pyx_tp_clear_5_cdec___pyx_scope_struct_18_todot, /*tp_clear*/
+  __pyx_tp_traverse_5_cdec___pyx_scope_struct_19_todot, /*tp_traverse*/
+  __pyx_tp_clear_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___pyx_scope_struct_18_todot, /*tp_methods*/
+  __pyx_methods_5_cdec___pyx_scope_struct_19_todot, /*tp_methods*/
   0, /*tp_members*/
   0, /*tp_getset*/
   0, /*tp_base*/
@@ -26186,7 +26267,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_18_todot = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec___pyx_scope_struct_18_todot, /*tp_new*/
+  __pyx_tp_new_5_cdec___pyx_scope_struct_19_todot, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -26200,11 +26281,11 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_18_todot = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_19_lines(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_19_lines *p;
+static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_20_lines(PyTypeObject *t, PyObject *a, PyObject *k) {
+  struct __pyx_obj_5_cdec___pyx_scope_struct_20_lines *p;
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
-  p = ((struct __pyx_obj_5_cdec___pyx_scope_struct_19_lines *)o);
+  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;
@@ -26215,8 +26296,8 @@ static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_19_lines(PyTypeObject *t
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec___pyx_scope_struct_19_lines(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_19_lines *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_19_lines *)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;
   Py_XDECREF(((PyObject *)p->__pyx_outer_scope));
   Py_XDECREF(p->__pyx_v_delta);
   Py_XDECREF(p->__pyx_v_i);
@@ -26227,9 +26308,9 @@ static void __pyx_tp_dealloc_5_cdec___pyx_scope_struct_19_lines(PyObject *o) {
   (*Py_TYPE(o)->tp_free)(o);
 }
 
-static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_19_lines(PyObject *o, visitproc v, void *a) {
+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_19_lines *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_19_lines *)o;
+  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;
   }
@@ -26254,11 +26335,11 @@ static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_19_lines(PyObject *o, vis
   return 0;
 }
 
-static int __pyx_tp_clear_5_cdec___pyx_scope_struct_19_lines(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_19_lines *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_19_lines *)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_18_todot *)Py_None); Py_INCREF(Py_None);
+  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);
@@ -26281,11 +26362,11 @@ static int __pyx_tp_clear_5_cdec___pyx_scope_struct_19_lines(PyObject *o) {
   return 0;
 }
 
-static PyMethodDef __pyx_methods_5_cdec___pyx_scope_struct_19_lines[] = {
+static PyMethodDef __pyx_methods_5_cdec___pyx_scope_struct_20_lines[] = {
   {0, 0, 0, 0}
 };
 
-static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_19_lines = {
+static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_20_lines = {
   0, /*nb_add*/
   0, /*nb_subtract*/
   0, /*nb_multiply*/
@@ -26343,7 +26424,7 @@ static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_19_lines = {
   #endif
 };
 
-static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_19_lines = {
+static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_20_lines = {
   0, /*sq_length*/
   0, /*sq_concat*/
   0, /*sq_repeat*/
@@ -26356,13 +26437,13 @@ static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_19_lines = {
   0, /*sq_inplace_repeat*/
 };
 
-static PyMappingMethods __pyx_tp_as_mapping___pyx_scope_struct_19_lines = {
+static PyMappingMethods __pyx_tp_as_mapping___pyx_scope_struct_20_lines = {
   0, /*mp_length*/
   0, /*mp_subscript*/
   0, /*mp_ass_subscript*/
 };
 
-static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_19_lines = {
+static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_20_lines = {
   #if PY_MAJOR_VERSION < 3
   0, /*bf_getreadbuffer*/
   #endif
@@ -26383,12 +26464,12 @@ static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_19_lines = {
   #endif
 };
 
-static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_19_lines = {
+static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_20_lines = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.__pyx_scope_struct_19_lines"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_19_lines), /*tp_basicsize*/
+  __Pyx_NAMESTR("_cdec.__pyx_scope_struct_20_lines"), /*tp_name*/
+  sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_20_lines), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec___pyx_scope_struct_19_lines, /*tp_dealloc*/
+  __pyx_tp_dealloc_5_cdec___pyx_scope_struct_20_lines, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -26398,24 +26479,24 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_19_lines = {
   0, /*reserved*/
   #endif
   0, /*tp_repr*/
-  &__pyx_tp_as_number___pyx_scope_struct_19_lines, /*tp_as_number*/
-  &__pyx_tp_as_sequence___pyx_scope_struct_19_lines, /*tp_as_sequence*/
-  &__pyx_tp_as_mapping___pyx_scope_struct_19_lines, /*tp_as_mapping*/
+  &__pyx_tp_as_number___pyx_scope_struct_20_lines, /*tp_as_number*/
+  &__pyx_tp_as_sequence___pyx_scope_struct_20_lines, /*tp_as_sequence*/
+  &__pyx_tp_as_mapping___pyx_scope_struct_20_lines, /*tp_as_mapping*/
   0, /*tp_hash*/
   0, /*tp_call*/
   0, /*tp_str*/
   0, /*tp_getattro*/
   0, /*tp_setattro*/
-  &__pyx_tp_as_buffer___pyx_scope_struct_19_lines, /*tp_as_buffer*/
+  &__pyx_tp_as_buffer___pyx_scope_struct_20_lines, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_5_cdec___pyx_scope_struct_19_lines, /*tp_traverse*/
-  __pyx_tp_clear_5_cdec___pyx_scope_struct_19_lines, /*tp_clear*/
+  __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_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec___pyx_scope_struct_19_lines, /*tp_methods*/
+  __pyx_methods_5_cdec___pyx_scope_struct_20_lines, /*tp_methods*/
   0, /*tp_members*/
   0, /*tp_getset*/
   0, /*tp_base*/
@@ -26425,7 +26506,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_19_lines = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec___pyx_scope_struct_19_lines, /*tp_new*/
+  __pyx_tp_new_5_cdec___pyx_scope_struct_20_lines, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -26439,28 +26520,28 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_19_lines = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_20___iter__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_20___iter__ *p;
+static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_21___iter__(PyTypeObject *t, PyObject *a, PyObject *k) {
+  struct __pyx_obj_5_cdec___pyx_scope_struct_21___iter__ *p;
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
-  p = ((struct __pyx_obj_5_cdec___pyx_scope_struct_20___iter__ *)o);
+  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;
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec___pyx_scope_struct_20___iter__(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_20___iter__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_20___iter__ *)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;
   Py_XDECREF(p->__pyx_v_i);
   Py_XDECREF(((PyObject *)p->__pyx_v_self));
   Py_XDECREF(p->__pyx_t_1);
   (*Py_TYPE(o)->tp_free)(o);
 }
 
-static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_20___iter__(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_21___iter__(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_5_cdec___pyx_scope_struct_20___iter__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_20___iter__ *)o;
+  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;
   }
@@ -26473,8 +26554,8 @@ static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_20___iter__(PyObject *o,
   return 0;
 }
 
-static int __pyx_tp_clear_5_cdec___pyx_scope_struct_20___iter__(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_20___iter__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_20___iter__ *)o;
+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;
   PyObject* tmp;
   tmp = ((PyObject*)p->__pyx_v_i);
   p->__pyx_v_i = Py_None; Py_INCREF(Py_None);
@@ -26488,11 +26569,11 @@ static int __pyx_tp_clear_5_cdec___pyx_scope_struct_20___iter__(PyObject *o) {
   return 0;
 }
 
-static PyMethodDef __pyx_methods_5_cdec___pyx_scope_struct_20___iter__[] = {
+static PyMethodDef __pyx_methods_5_cdec___pyx_scope_struct_21___iter__[] = {
   {0, 0, 0, 0}
 };
 
-static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_20___iter__ = {
+static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_21___iter__ = {
   0, /*nb_add*/
   0, /*nb_subtract*/
   0, /*nb_multiply*/
@@ -26550,7 +26631,7 @@ static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_20___iter__ = {
   #endif
 };
 
-static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_20___iter__ = {
+static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_21___iter__ = {
   0, /*sq_length*/
   0, /*sq_concat*/
   0, /*sq_repeat*/
@@ -26563,13 +26644,13 @@ static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_20___iter__ = {
   0, /*sq_inplace_repeat*/
 };
 
-static PyMappingMethods __pyx_tp_as_mapping___pyx_scope_struct_20___iter__ = {
+static PyMappingMethods __pyx_tp_as_mapping___pyx_scope_struct_21___iter__ = {
   0, /*mp_length*/
   0, /*mp_subscript*/
   0, /*mp_ass_subscript*/
 };
 
-static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_20___iter__ = {
+static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_21___iter__ = {
   #if PY_MAJOR_VERSION < 3
   0, /*bf_getreadbuffer*/
   #endif
@@ -26590,12 +26671,12 @@ static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_20___iter__ = {
   #endif
 };
 
-static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_20___iter__ = {
+static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_21___iter__ = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.__pyx_scope_struct_20___iter__"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_20___iter__), /*tp_basicsize*/
+  __Pyx_NAMESTR("_cdec.__pyx_scope_struct_21___iter__"), /*tp_name*/
+  sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_21___iter__), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec___pyx_scope_struct_20___iter__, /*tp_dealloc*/
+  __pyx_tp_dealloc_5_cdec___pyx_scope_struct_21___iter__, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -26605,24 +26686,24 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_20___iter__ = {
   0, /*reserved*/
   #endif
   0, /*tp_repr*/
-  &__pyx_tp_as_number___pyx_scope_struct_20___iter__, /*tp_as_number*/
-  &__pyx_tp_as_sequence___pyx_scope_struct_20___iter__, /*tp_as_sequence*/
-  &__pyx_tp_as_mapping___pyx_scope_struct_20___iter__, /*tp_as_mapping*/
+  &__pyx_tp_as_number___pyx_scope_struct_21___iter__, /*tp_as_number*/
+  &__pyx_tp_as_sequence___pyx_scope_struct_21___iter__, /*tp_as_sequence*/
+  &__pyx_tp_as_mapping___pyx_scope_struct_21___iter__, /*tp_as_mapping*/
   0, /*tp_hash*/
   0, /*tp_call*/
   0, /*tp_str*/
   0, /*tp_getattro*/
   0, /*tp_setattro*/
-  &__pyx_tp_as_buffer___pyx_scope_struct_20___iter__, /*tp_as_buffer*/
+  &__pyx_tp_as_buffer___pyx_scope_struct_21___iter__, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_5_cdec___pyx_scope_struct_20___iter__, /*tp_traverse*/
-  __pyx_tp_clear_5_cdec___pyx_scope_struct_20___iter__, /*tp_clear*/
+  __pyx_tp_traverse_5_cdec___pyx_scope_struct_21___iter__, /*tp_traverse*/
+  __pyx_tp_clear_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_20___iter__, /*tp_methods*/
+  __pyx_methods_5_cdec___pyx_scope_struct_21___iter__, /*tp_methods*/
   0, /*tp_members*/
   0, /*tp_getset*/
   0, /*tp_base*/
@@ -26632,7 +26713,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_20___iter__ = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec___pyx_scope_struct_20___iter__, /*tp_new*/
+  __pyx_tp_new_5_cdec___pyx_scope_struct_21___iter__, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -26646,32 +26727,32 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_20___iter__ = {
   #endif
 };
 
-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_5_cdec___pyx_scope_struct_22___iter__(PyTypeObject *t, PyObject *a, PyObject *k) {
+  struct __pyx_obj_5_cdec___pyx_scope_struct_22___iter__ *p;
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
-  p = ((struct __pyx_obj_5_cdec___pyx_scope_struct_21___iter__ *)o);
+  p = ((struct __pyx_obj_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_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_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;
   Py_XDECREF(((PyObject *)p->__pyx_v_self));
   (*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_5_cdec___pyx_scope_struct_22___iter__(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;
+  struct __pyx_obj_5_cdec___pyx_scope_struct_22___iter__ *p = (struct __pyx_obj_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_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_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;
   PyObject* tmp;
   tmp = ((PyObject*)p->__pyx_v_self);
   p->__pyx_v_self = ((struct __pyx_obj_5_cdec_CandidateSet *)Py_None); Py_INCREF(Py_None);
@@ -26679,11 +26760,11 @@ static int __pyx_tp_clear_5_cdec___pyx_scope_struct_21___iter__(PyObject *o) {
   return 0;
 }
 
-static PyMethodDef __pyx_methods_5_cdec___pyx_scope_struct_21___iter__[] = {
+static PyMethodDef __pyx_methods_5_cdec___pyx_scope_struct_22___iter__[] = {
   {0, 0, 0, 0}
 };
 
-static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_21___iter__ = {
+static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_22___iter__ = {
   0, /*nb_add*/
   0, /*nb_subtract*/
   0, /*nb_multiply*/
@@ -26741,7 +26822,7 @@ static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_21___iter__ = {
   #endif
 };
 
-static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_21___iter__ = {
+static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_22___iter__ = {
   0, /*sq_length*/
   0, /*sq_concat*/
   0, /*sq_repeat*/
@@ -26754,13 +26835,13 @@ static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_21___iter__ = {
   0, /*sq_inplace_repeat*/
 };
 
-static PyMappingMethods __pyx_tp_as_mapping___pyx_scope_struct_21___iter__ = {
+static PyMappingMethods __pyx_tp_as_mapping___pyx_scope_struct_22___iter__ = {
   0, /*mp_length*/
   0, /*mp_subscript*/
   0, /*mp_ass_subscript*/
 };
 
-static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_21___iter__ = {
+static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_22___iter__ = {
   #if PY_MAJOR_VERSION < 3
   0, /*bf_getreadbuffer*/
   #endif
@@ -26781,12 +26862,12 @@ static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_21___iter__ = {
   #endif
 };
 
-static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_21___iter__ = {
+static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_22___iter__ = {
   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.__pyx_scope_struct_22___iter__"), /*tp_name*/
+  sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_22___iter__), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec___pyx_scope_struct_21___iter__, /*tp_dealloc*/
+  __pyx_tp_dealloc_5_cdec___pyx_scope_struct_22___iter__, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -26796,24 +26877,24 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_21___iter__ = {
   0, /*reserved*/
   #endif
   0, /*tp_repr*/
-  &__pyx_tp_as_number___pyx_scope_struct_21___iter__, /*tp_as_number*/
-  &__pyx_tp_as_sequence___pyx_scope_struct_21___iter__, /*tp_as_sequence*/
-  &__pyx_tp_as_mapping___pyx_scope_struct_21___iter__, /*tp_as_mapping*/
+  &__pyx_tp_as_number___pyx_scope_struct_22___iter__, /*tp_as_number*/
+  &__pyx_tp_as_sequence___pyx_scope_struct_22___iter__, /*tp_as_sequence*/
+  &__pyx_tp_as_mapping___pyx_scope_struct_22___iter__, /*tp_as_mapping*/
   0, /*tp_hash*/
   0, /*tp_call*/
   0, /*tp_str*/
   0, /*tp_getattro*/
   0, /*tp_setattro*/
-  &__pyx_tp_as_buffer___pyx_scope_struct_21___iter__, /*tp_as_buffer*/
+  &__pyx_tp_as_buffer___pyx_scope_struct_22___iter__, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_5_cdec___pyx_scope_struct_21___iter__, /*tp_traverse*/
-  __pyx_tp_clear_5_cdec___pyx_scope_struct_21___iter__, /*tp_clear*/
+  __pyx_tp_traverse_5_cdec___pyx_scope_struct_22___iter__, /*tp_traverse*/
+  __pyx_tp_clear_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_21___iter__, /*tp_methods*/
+  __pyx_methods_5_cdec___pyx_scope_struct_22___iter__, /*tp_methods*/
   0, /*tp_members*/
   0, /*tp_getset*/
   0, /*tp_base*/
@@ -26823,7 +26904,7 @@ 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_5_cdec___pyx_scope_struct_22___iter__, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -26837,11 +26918,11 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_21___iter__ = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_22__make_config(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_22__make_config *p;
+static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_23__make_config(PyTypeObject *t, PyObject *a, PyObject *k) {
+  struct __pyx_obj_5_cdec___pyx_scope_struct_23__make_config *p;
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
-  p = ((struct __pyx_obj_5_cdec___pyx_scope_struct_22__make_config *)o);
+  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;
@@ -26852,8 +26933,8 @@ static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_22__make_config(PyTypeOb
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec___pyx_scope_struct_22__make_config(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_22__make_config *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_22__make_config *)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;
   Py_XDECREF(p->__pyx_v_config);
   Py_XDECREF(p->__pyx_v_info);
   Py_XDECREF(p->__pyx_v_key);
@@ -26864,9 +26945,9 @@ static void __pyx_tp_dealloc_5_cdec___pyx_scope_struct_22__make_config(PyObject
   (*Py_TYPE(o)->tp_free)(o);
 }
 
-static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_22__make_config(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_23__make_config(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_5_cdec___pyx_scope_struct_22__make_config *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_22__make_config *)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;
   if (p->__pyx_v_config) {
     e = (*v)(p->__pyx_v_config, a); if (e) return e;
   }
@@ -26891,8 +26972,8 @@ static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_22__make_config(PyObject
   return 0;
 }
 
-static int __pyx_tp_clear_5_cdec___pyx_scope_struct_22__make_config(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_22__make_config *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_22__make_config *)o;
+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;
   PyObject* tmp;
   tmp = ((PyObject*)p->__pyx_v_config);
   p->__pyx_v_config = Py_None; Py_INCREF(Py_None);
@@ -26918,11 +26999,11 @@ static int __pyx_tp_clear_5_cdec___pyx_scope_struct_22__make_config(PyObject *o)
   return 0;
 }
 
-static PyMethodDef __pyx_methods_5_cdec___pyx_scope_struct_22__make_config[] = {
+static PyMethodDef __pyx_methods_5_cdec___pyx_scope_struct_23__make_config[] = {
   {0, 0, 0, 0}
 };
 
-static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_22__make_config = {
+static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_23__make_config = {
   0, /*nb_add*/
   0, /*nb_subtract*/
   0, /*nb_multiply*/
@@ -26980,7 +27061,7 @@ static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_22__make_config = {
   #endif
 };
 
-static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_22__make_config = {
+static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_23__make_config = {
   0, /*sq_length*/
   0, /*sq_concat*/
   0, /*sq_repeat*/
@@ -26993,13 +27074,13 @@ static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_22__make_config
   0, /*sq_inplace_repeat*/
 };
 
-static PyMappingMethods __pyx_tp_as_mapping___pyx_scope_struct_22__make_config = {
+static PyMappingMethods __pyx_tp_as_mapping___pyx_scope_struct_23__make_config = {
   0, /*mp_length*/
   0, /*mp_subscript*/
   0, /*mp_ass_subscript*/
 };
 
-static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_22__make_config = {
+static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_23__make_config = {
   #if PY_MAJOR_VERSION < 3
   0, /*bf_getreadbuffer*/
   #endif
@@ -27020,12 +27101,12 @@ static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_22__make_config = {
   #endif
 };
 
-static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_22__make_config = {
+static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_23__make_config = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.__pyx_scope_struct_22__make_config"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_22__make_config), /*tp_basicsize*/
+  __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*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec___pyx_scope_struct_22__make_config, /*tp_dealloc*/
+  __pyx_tp_dealloc_5_cdec___pyx_scope_struct_23__make_config, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -27035,24 +27116,24 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_22__make_config = {
   0, /*reserved*/
   #endif
   0, /*tp_repr*/
-  &__pyx_tp_as_number___pyx_scope_struct_22__make_config, /*tp_as_number*/
-  &__pyx_tp_as_sequence___pyx_scope_struct_22__make_config, /*tp_as_sequence*/
-  &__pyx_tp_as_mapping___pyx_scope_struct_22__make_config, /*tp_as_mapping*/
+  &__pyx_tp_as_number___pyx_scope_struct_23__make_config, /*tp_as_number*/
+  &__pyx_tp_as_sequence___pyx_scope_struct_23__make_config, /*tp_as_sequence*/
+  &__pyx_tp_as_mapping___pyx_scope_struct_23__make_config, /*tp_as_mapping*/
   0, /*tp_hash*/
   0, /*tp_call*/
   0, /*tp_str*/
   0, /*tp_getattro*/
   0, /*tp_setattro*/
-  &__pyx_tp_as_buffer___pyx_scope_struct_22__make_config, /*tp_as_buffer*/
+  &__pyx_tp_as_buffer___pyx_scope_struct_23__make_config, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_5_cdec___pyx_scope_struct_22__make_config, /*tp_traverse*/
-  __pyx_tp_clear_5_cdec___pyx_scope_struct_22__make_config, /*tp_clear*/
+  __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*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec___pyx_scope_struct_22__make_config, /*tp_methods*/
+  __pyx_methods_5_cdec___pyx_scope_struct_23__make_config, /*tp_methods*/
   0, /*tp_members*/
   0, /*tp_getset*/
   0, /*tp_base*/
@@ -27062,7 +27143,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_22__make_config = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec___pyx_scope_struct_22__make_config, /*tp_new*/
+  __pyx_tp_new_5_cdec___pyx_scope_struct_23__make_config, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -27076,32 +27157,32 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_22__make_config = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_23___cinit__(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_23___cinit__ *p;
+static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_24___cinit__(PyTypeObject *t, PyObject *a, PyObject *k) {
+  struct __pyx_obj_5_cdec___pyx_scope_struct_24___cinit__ *p;
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
-  p = ((struct __pyx_obj_5_cdec___pyx_scope_struct_23___cinit__ *)o);
+  p = ((struct __pyx_obj_5_cdec___pyx_scope_struct_24___cinit__ *)o);
   p->__pyx_v_config = 0;
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec___pyx_scope_struct_23___cinit__(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_23___cinit__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_23___cinit__ *)o;
+static void __pyx_tp_dealloc_5_cdec___pyx_scope_struct_24___cinit__(PyObject *o) {
+  struct __pyx_obj_5_cdec___pyx_scope_struct_24___cinit__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_24___cinit__ *)o;
   Py_XDECREF(p->__pyx_v_config);
   (*Py_TYPE(o)->tp_free)(o);
 }
 
-static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_23___cinit__(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_24___cinit__(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_5_cdec___pyx_scope_struct_23___cinit__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_23___cinit__ *)o;
+  struct __pyx_obj_5_cdec___pyx_scope_struct_24___cinit__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_24___cinit__ *)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_23___cinit__(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_23___cinit__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_23___cinit__ *)o;
+static int __pyx_tp_clear_5_cdec___pyx_scope_struct_24___cinit__(PyObject *o) {
+  struct __pyx_obj_5_cdec___pyx_scope_struct_24___cinit__ *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_24___cinit__ *)o;
   PyObject* tmp;
   tmp = ((PyObject*)p->__pyx_v_config);
   p->__pyx_v_config = Py_None; Py_INCREF(Py_None);
@@ -27109,11 +27190,11 @@ static int __pyx_tp_clear_5_cdec___pyx_scope_struct_23___cinit__(PyObject *o) {
   return 0;
 }
 
-static PyMethodDef __pyx_methods_5_cdec___pyx_scope_struct_23___cinit__[] = {
+static PyMethodDef __pyx_methods_5_cdec___pyx_scope_struct_24___cinit__[] = {
   {0, 0, 0, 0}
 };
 
-static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_23___cinit__ = {
+static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_24___cinit__ = {
   0, /*nb_add*/
   0, /*nb_subtract*/
   0, /*nb_multiply*/
@@ -27171,7 +27252,7 @@ static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_23___cinit__ = {
   #endif
 };
 
-static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_23___cinit__ = {
+static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_24___cinit__ = {
   0, /*sq_length*/
   0, /*sq_concat*/
   0, /*sq_repeat*/
@@ -27184,13 +27265,13 @@ static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_23___cinit__ =
   0, /*sq_inplace_repeat*/
 };
 
-static PyMappingMethods __pyx_tp_as_mapping___pyx_scope_struct_23___cinit__ = {
+static PyMappingMethods __pyx_tp_as_mapping___pyx_scope_struct_24___cinit__ = {
   0, /*mp_length*/
   0, /*mp_subscript*/
   0, /*mp_ass_subscript*/
 };
 
-static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_23___cinit__ = {
+static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_24___cinit__ = {
   #if PY_MAJOR_VERSION < 3
   0, /*bf_getreadbuffer*/
   #endif
@@ -27211,12 +27292,12 @@ static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_23___cinit__ = {
   #endif
 };
 
-static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_23___cinit__ = {
+static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_24___cinit__ = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.__pyx_scope_struct_23___cinit__"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_23___cinit__), /*tp_basicsize*/
+  __Pyx_NAMESTR("_cdec.__pyx_scope_struct_24___cinit__"), /*tp_name*/
+  sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_24___cinit__), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec___pyx_scope_struct_23___cinit__, /*tp_dealloc*/
+  __pyx_tp_dealloc_5_cdec___pyx_scope_struct_24___cinit__, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -27226,24 +27307,24 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_23___cinit__ = {
   0, /*reserved*/
   #endif
   0, /*tp_repr*/
-  &__pyx_tp_as_number___pyx_scope_struct_23___cinit__, /*tp_as_number*/
-  &__pyx_tp_as_sequence___pyx_scope_struct_23___cinit__, /*tp_as_sequence*/
-  &__pyx_tp_as_mapping___pyx_scope_struct_23___cinit__, /*tp_as_mapping*/
+  &__pyx_tp_as_number___pyx_scope_struct_24___cinit__, /*tp_as_number*/
+  &__pyx_tp_as_sequence___pyx_scope_struct_24___cinit__, /*tp_as_sequence*/
+  &__pyx_tp_as_mapping___pyx_scope_struct_24___cinit__, /*tp_as_mapping*/
   0, /*tp_hash*/
   0, /*tp_call*/
   0, /*tp_str*/
   0, /*tp_getattro*/
   0, /*tp_setattro*/
-  &__pyx_tp_as_buffer___pyx_scope_struct_23___cinit__, /*tp_as_buffer*/
+  &__pyx_tp_as_buffer___pyx_scope_struct_24___cinit__, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_5_cdec___pyx_scope_struct_23___cinit__, /*tp_traverse*/
-  __pyx_tp_clear_5_cdec___pyx_scope_struct_23___cinit__, /*tp_clear*/
+  __pyx_tp_traverse_5_cdec___pyx_scope_struct_24___cinit__, /*tp_traverse*/
+  __pyx_tp_clear_5_cdec___pyx_scope_struct_24___cinit__, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
   0, /*tp_iternext*/
-  __pyx_methods_5_cdec___pyx_scope_struct_23___cinit__, /*tp_methods*/
+  __pyx_methods_5_cdec___pyx_scope_struct_24___cinit__, /*tp_methods*/
   0, /*tp_members*/
   0, /*tp_getset*/
   0, /*tp_base*/
@@ -27253,7 +27334,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_23___cinit__ = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec___pyx_scope_struct_23___cinit__, /*tp_new*/
+  __pyx_tp_new_5_cdec___pyx_scope_struct_24___cinit__, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -27267,28 +27348,28 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_23___cinit__ = {
   #endif
 };
 
-static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_24_genexpr(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_24_genexpr *p;
+static PyObject *__pyx_tp_new_5_cdec___pyx_scope_struct_25_genexpr(PyTypeObject *t, PyObject *a, PyObject *k) {
+  struct __pyx_obj_5_cdec___pyx_scope_struct_25_genexpr *p;
   PyObject *o = (*t->tp_alloc)(t, 0);
   if (!o) return 0;
-  p = ((struct __pyx_obj_5_cdec___pyx_scope_struct_24_genexpr *)o);
+  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;
   return o;
 }
 
-static void __pyx_tp_dealloc_5_cdec___pyx_scope_struct_24_genexpr(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_24_genexpr *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_24_genexpr *)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;
   Py_XDECREF(((PyObject *)p->__pyx_outer_scope));
   Py_XDECREF(p->__pyx_v_kv);
   Py_XDECREF(p->__pyx_t_0);
   (*Py_TYPE(o)->tp_free)(o);
 }
 
-static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_24_genexpr(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_25_genexpr(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_5_cdec___pyx_scope_struct_24_genexpr *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_24_genexpr *)o;
+  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;
   }
@@ -27301,11 +27382,11 @@ static int __pyx_tp_traverse_5_cdec___pyx_scope_struct_24_genexpr(PyObject *o, v
   return 0;
 }
 
-static int __pyx_tp_clear_5_cdec___pyx_scope_struct_24_genexpr(PyObject *o) {
-  struct __pyx_obj_5_cdec___pyx_scope_struct_24_genexpr *p = (struct __pyx_obj_5_cdec___pyx_scope_struct_24_genexpr *)o;
+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;
   PyObject* tmp;
   tmp = ((PyObject*)p->__pyx_outer_scope);
-  p->__pyx_outer_scope = ((struct __pyx_obj_5_cdec___pyx_scope_struct_23___cinit__ *)Py_None); Py_INCREF(Py_None);
+  p->__pyx_outer_scope = ((struct __pyx_obj_5_cdec___pyx_scope_struct_24___cinit__ *)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);
@@ -27316,11 +27397,11 @@ static int __pyx_tp_clear_5_cdec___pyx_scope_struct_24_genexpr(PyObject *o) {
   return 0;
 }
 
-static PyMethodDef __pyx_methods_5_cdec___pyx_scope_struct_24_genexpr[] = {
+static PyMethodDef __pyx_methods_5_cdec___pyx_scope_struct_25_genexpr[] = {
   {0, 0, 0, 0}
 };
 
-static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_24_genexpr = {
+static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_25_genexpr = {
   0, /*nb_add*/
   0, /*nb_subtract*/
   0, /*nb_multiply*/
@@ -27378,7 +27459,7 @@ static PyNumberMethods __pyx_tp_as_number___pyx_scope_struct_24_genexpr = {
   #endif
 };
 
-static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_24_genexpr = {
+static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_25_genexpr = {
   0, /*sq_length*/
   0, /*sq_concat*/
   0, /*sq_repeat*/
@@ -27391,13 +27472,13 @@ static PySequenceMethods __pyx_tp_as_sequence___pyx_scope_struct_24_genexpr = {
   0, /*sq_inplace_repeat*/
 };
 
-static PyMappingMethods __pyx_tp_as_mapping___pyx_scope_struct_24_genexpr = {
+static PyMappingMethods __pyx_tp_as_mapping___pyx_scope_struct_25_genexpr = {
   0, /*mp_length*/
   0, /*mp_subscript*/
   0, /*mp_ass_subscript*/
 };
 
-static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_24_genexpr = {
+static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_25_genexpr = {
   #if PY_MAJOR_VERSION < 3
   0, /*bf_getreadbuffer*/
   #endif
@@ -27418,12 +27499,12 @@ static PyBufferProcs __pyx_tp_as_buffer___pyx_scope_struct_24_genexpr = {
   #endif
 };
 
-static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_24_genexpr = {
+static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_25_genexpr = {
   PyVarObject_HEAD_INIT(0, 0)
-  __Pyx_NAMESTR("_cdec.__pyx_scope_struct_24_genexpr"), /*tp_name*/
-  sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_24_genexpr), /*tp_basicsize*/
+  __Pyx_NAMESTR("_cdec.__pyx_scope_struct_25_genexpr"), /*tp_name*/
+  sizeof(struct __pyx_obj_5_cdec___pyx_scope_struct_25_genexpr), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_5_cdec___pyx_scope_struct_24_genexpr, /*tp_dealloc*/
+  __pyx_tp_dealloc_5_cdec___pyx_scope_struct_25_genexpr, /*tp_dealloc*/
   0, /*tp_print*/
   0, /*tp_getattr*/
   0, /*tp_setattr*/
@@ -27433,24 +27514,24 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_24_genexpr = {
   0, /*reserved*/
   #endif
   0, /*tp_repr*/
-  &__pyx_tp_as_number___pyx_scope_struct_24_genexpr, /*tp_as_number*/
-  &__pyx_tp_as_sequence___pyx_scope_struct_24_genexpr, /*tp_as_sequence*/
-  &__pyx_tp_as_mapping___pyx_scope_struct_24_genexpr, /*tp_as_mapping*/
+  &__pyx_tp_as_number___pyx_scope_struct_25_genexpr, /*tp_as_number*/
+  &__pyx_tp_as_sequence___pyx_scope_struct_25_genexpr, /*tp_as_sequence*/
+  &__pyx_tp_as_mapping___pyx_scope_struct_25_genexpr, /*tp_as_mapping*/
   0, /*tp_hash*/
   0, /*tp_call*/
   0, /*tp_str*/
   0, /*tp_getattro*/
   0, /*tp_setattro*/
-  &__pyx_tp_as_buffer___pyx_scope_struct_24_genexpr, /*tp_as_buffer*/
+  &__pyx_tp_as_buffer___pyx_scope_struct_25_genexpr, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_5_cdec___pyx_scope_struct_24_genexpr, /*tp_traverse*/
-  __pyx_tp_clear_5_cdec___pyx_scope_struct_24_genexpr, /*tp_clear*/
+  __pyx_tp_traverse_5_cdec___pyx_scope_struct_25_genexpr, /*tp_traverse*/
+  __pyx_tp_clear_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_24_genexpr, /*tp_methods*/
+  __pyx_methods_5_cdec___pyx_scope_struct_25_genexpr, /*tp_methods*/
   0, /*tp_members*/
   0, /*tp_getset*/
   0, /*tp_base*/
@@ -27460,7 +27541,7 @@ static PyTypeObject __pyx_type_5_cdec___pyx_scope_struct_24_genexpr = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_5_cdec___pyx_scope_struct_24_genexpr, /*tp_new*/
+  __pyx_tp_new_5_cdec___pyx_scope_struct_25_genexpr, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -27627,10 +27708,10 @@ static int __Pyx_InitCachedBuiltins(void) {
   __pyx_builtin_NotImplemented = __Pyx_GetName(__pyx_b, __pyx_n_s__NotImplemented); if (!__pyx_builtin_NotImplemented) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 89; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_builtin_super = __Pyx_GetName(__pyx_b, __pyx_n_s__super); if (!__pyx_builtin_super) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 179; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_builtin_ValueError = __Pyx_GetName(__pyx_b, __pyx_n_s__ValueError); if (!__pyx_builtin_ValueError) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 212; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_builtin_eval = __Pyx_GetName(__pyx_b, __pyx_n_s__eval); if (!__pyx_builtin_eval) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 102; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_builtin_eval = __Pyx_GetName(__pyx_b, __pyx_n_s__eval); if (!__pyx_builtin_eval) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 114; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_builtin_enumerate = __Pyx_GetName(__pyx_b, __pyx_n_s__enumerate); if (!__pyx_builtin_enumerate) {__pyx_filename = __pyx_f[4]; __pyx_lineno = 9; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_builtin_IndexError = __Pyx_GetName(__pyx_b, __pyx_n_s__IndexError); if (!__pyx_builtin_IndexError) {__pyx_filename = __pyx_f[4]; __pyx_lineno = 24; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_builtin_open = __Pyx_GetName(__pyx_b, __pyx_n_s__open); if (!__pyx_builtin_open) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 88; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_builtin_open = __Pyx_GetName(__pyx_b, __pyx_n_s__open); if (!__pyx_builtin_open) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 89; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   return 0;
   __pyx_L1_error:;
   return -1;
@@ -27654,7 +27735,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GIVEREF(((PyObject *)__pyx_n_s__utf8));
   __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_2));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/vectors.pxi":89
+  /* "/home/cdyer/cdec/python/src/vectors.pxi":89
  *         elif op == 3: # !=
  *             return not (x == y)
  *         raise NotImplemented('comparison not implemented for SparseVector')             # <<<<<<<<<<<<<<
@@ -27668,7 +27749,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_4));
   __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_5));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":6
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":6
  * 
  * def _phrase(phrase):
  *     return ' '.join(w.encode('utf8') if isinstance(w, unicode) else str(w) for w in phrase)             # <<<<<<<<<<<<<<
@@ -27682,7 +27763,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GIVEREF(((PyObject *)__pyx_n_s__utf8));
   __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_6));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":212
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":212
  *                 trule = convert_rule(trule)
  *             elif not isinstance(trule, TRule):
  *                 raise ValueError('the grammar should contain TRule objects')             # <<<<<<<<<<<<<<
@@ -27695,33 +27776,33 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_13));
   __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_14));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":191
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":203
  *         elif op == 3: # !=
  *             return not (x == y)
  *         raise NotImplemented('comparison not implemented for HypergraphEdge')             # <<<<<<<<<<<<<<
  * 
  * cdef class HypergraphNode:
  */
-  __pyx_k_tuple_18 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_18)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 191; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_k_tuple_18 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_18)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 203; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_k_tuple_18);
   __Pyx_INCREF(((PyObject *)__pyx_kp_s_17));
   PyTuple_SET_ITEM(__pyx_k_tuple_18, 0, ((PyObject *)__pyx_kp_s_17));
   __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_17));
   __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_18));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/hypergraph.pxi":228
+  /* "/home/cdyer/cdec/python/src/hypergraph.pxi":240
  *         elif op == 3: # !=
  *             return not (x == y)
  *         raise NotImplemented('comparison not implemented for HypergraphNode')             # <<<<<<<<<<<<<<
  */
-  __pyx_k_tuple_20 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_20)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 228; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_k_tuple_20 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_20)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 240; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_k_tuple_20);
   __Pyx_INCREF(((PyObject *)__pyx_kp_s_19));
   PyTuple_SET_ITEM(__pyx_k_tuple_20, 0, ((PyObject *)__pyx_kp_s_19));
   __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_19));
   __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_20));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":13
+  /* "/home/cdyer/cdec/python/src/lattice.pxi":13
  *         else:
  *             if isinstance(inp, unicode):
  *                 inp = inp.encode('utf8')             # <<<<<<<<<<<<<<
@@ -27735,7 +27816,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GIVEREF(((PyObject *)__pyx_n_s__utf8));
   __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_21));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":24
+  /* "/home/cdyer/cdec/python/src/lattice.pxi":24
  *     def __getitem__(self, int index):
  *         if not 0 <= index < len(self):
  *             raise IndexError('lattice index out of range')             # <<<<<<<<<<<<<<
@@ -27749,7 +27830,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_23));
   __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_24));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":37
+  /* "/home/cdyer/cdec/python/src/lattice.pxi":37
  *     def __setitem__(self, int index, tuple arcs):
  *         if not 0 <= index < len(self):
  *             raise IndexError('lattice index out of range')             # <<<<<<<<<<<<<<
@@ -27763,7 +27844,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_23));
   __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_25));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":41
+  /* "/home/cdyer/cdec/python/src/lattice.pxi":41
  *         for (label, cost, dist2next) in arcs:
  *             if isinstance(label, unicode):
  *                 label = label.encode('utf8')             # <<<<<<<<<<<<<<
@@ -27777,7 +27858,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GIVEREF(((PyObject *)__pyx_n_s__utf8));
   __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_26));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":64
+  /* "/home/cdyer/cdec/python/src/lattice.pxi":64
  *             for i in range(len(self)):
  *                 for label, weight, delta in self[i]:
  *                     yield '%d -> %d [label="%s"];' % (i, i+delta, label.replace('"', '\\"'))             # <<<<<<<<<<<<<<
@@ -27794,7 +27875,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_32));
   __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_33));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":58
+  /* "/home/cdyer/cdec/python/src/lattice.pxi":58
  * 
  *     def todot(self):
  *         def lines():             # <<<<<<<<<<<<<<
@@ -27818,7 +27899,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_36));
   __pyx_k_codeobj_37 = (PyObject*)__Pyx_PyCode_New(0, 0, 4, 0, 0, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_k_tuple_36, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_38, __pyx_n_s__lines, 58, __pyx_empty_bytes); if (unlikely(!__pyx_k_codeobj_37)) {__pyx_filename = __pyx_f[4]; __pyx_lineno = 58; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/lattice.pxi":67
+  /* "/home/cdyer/cdec/python/src/lattice.pxi":67
  *             yield '%d [shape=doublecircle]' % len(self)
  *             yield '}'
  *         return '\n'.join(lines()).encode('utf8')             # <<<<<<<<<<<<<<
@@ -27830,7 +27911,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GIVEREF(((PyObject *)__pyx_n_s__utf8));
   __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_40));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":50
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":50
  *     def __getitem__(self, int index):
  *         if not 0 <= index < len(self):
  *             raise IndexError('sufficient stats vector index out of range')             # <<<<<<<<<<<<<<
@@ -27844,7 +27925,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_41));
   __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_42));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":84
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":84
  *     def __getitem__(self,int k):
  *         if not 0 <= k < self.cs.size():
  *             raise IndexError('candidate set index out of range')             # <<<<<<<<<<<<<<
@@ -27875,28 +27956,28 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GIVEREF(Py_None);
   __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_47));
 
-  /* "_cdec.pyx":90
+  /* "_cdec.pyx":91
  *         with open(weights) as fp:
  *             for line in fp:
  *                 if line.strip().startswith('#'): continue             # <<<<<<<<<<<<<<
  *                 fname, value = line.split()
  *                 self.weights[fname.strip()] = float(value)
  */
-  __pyx_k_tuple_51 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_51)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 90; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_k_tuple_51 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_51)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 91; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_k_tuple_51);
   __Pyx_INCREF(((PyObject *)__pyx_kp_s_50));
   PyTuple_SET_ITEM(__pyx_k_tuple_51, 0, ((PyObject *)__pyx_kp_s_50));
   __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_50));
   __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_51));
 
-  /* "_cdec.pyx":88
+  /* "_cdec.pyx":89
  * 
  *     def read_weights(self, weights):
  *         with open(weights) as fp:             # <<<<<<<<<<<<<<
  *             for line in fp:
  *                 if line.strip().startswith('#'): continue
  */
-  __pyx_k_tuple_52 = PyTuple_New(3); if (unlikely(!__pyx_k_tuple_52)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 88; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_k_tuple_52 = PyTuple_New(3); if (unlikely(!__pyx_k_tuple_52)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 89; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_k_tuple_52);
   __Pyx_INCREF(Py_None);
   PyTuple_SET_ITEM(__pyx_k_tuple_52, 0, Py_None);
@@ -27909,7 +27990,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GIVEREF(Py_None);
   __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_52));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":5
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":5
  * import cdec.sa._sa as _sa
  * 
  * def _phrase(phrase):             # <<<<<<<<<<<<<<
@@ -27930,7 +28011,7 @@ static int __Pyx_InitCachedConstants(void) {
   __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":190
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":190
  *         return []
  * 
  * BLEU = Scorer('IBM_BLEU')             # <<<<<<<<<<<<<<
@@ -27944,7 +28025,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GIVEREF(((PyObject *)__pyx_n_s__IBM_BLEU));
   __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_59));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":191
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":191
  * 
  * BLEU = Scorer('IBM_BLEU')
  * TER = Scorer('TER')             # <<<<<<<<<<<<<<
@@ -27957,7 +28038,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GIVEREF(((PyObject *)__pyx_n_s__TER));
   __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_60));
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":192
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":192
  * BLEU = Scorer('IBM_BLEU')
  * TER = Scorer('TER')
  * CER = Scorer('CER')             # <<<<<<<<<<<<<<
@@ -28066,9 +28147,6 @@ PyMODINIT_FUNC PyInit__cdec(void)
   #endif
   __pyx_b = PyImport_AddModule(__Pyx_NAMESTR(__Pyx_BUILTIN_MODULE_NAME));
   if (!__pyx_b) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
-  #if CYTHON_COMPILING_IN_PYPY
-  Py_INCREF(__pyx_b);
-  #endif
   if (__Pyx_SetAttrString(__pyx_m, "__builtins__", __pyx_b) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
   /*--- Initialize various global constants etc. ---*/
   if (unlikely(__Pyx_InitGlobals() < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
@@ -28114,15 +28192,15 @@ PyMODINIT_FUNC PyInit__cdec(void)
   __pyx_ptype_5_cdec_Hypergraph = &__pyx_type_5_cdec_Hypergraph;
   __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 = 147; __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 = 147; __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 = 147; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyType_Ready(&__pyx_type_5_cdec_HypergraphEdge) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 159; __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 = 159; __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 = 159; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_ptype_5_cdec_HypergraphEdge = &__pyx_type_5_cdec_HypergraphEdge;
   __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 = 193; __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 = 193; __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 = 193; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyType_Ready(&__pyx_type_5_cdec_HypergraphNode) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 205; __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 = 205; __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 = 205; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __pyx_ptype_5_cdec_HypergraphNode = &__pyx_type_5_cdec_HypergraphNode;
   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, "Lattice", (PyObject *)&__pyx_type_5_cdec_Lattice) < 0) {__pyx_filename = __pyx_f[4]; __pyx_lineno = 3; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
@@ -28172,36 +28250,38 @@ PyMODINIT_FUNC PyInit__cdec(void)
   __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_11_sample) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 76; __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_12___get__) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 113; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec___pyx_scope_struct_12___get__ = &__pyx_type_5_cdec___pyx_scope_struct_12___get__;
-  if (PyType_Ready(&__pyx_type_5_cdec___pyx_scope_struct_13___get__) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 119; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyType_Ready(&__pyx_type_5_cdec___pyx_scope_struct_12_sample_trees) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 88; __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 = 125; __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_14___get__) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 167; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyType_Ready(&__pyx_type_5_cdec___pyx_scope_struct_14___get__) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 131; __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___pyx_scope_struct_15___get__) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 203; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyType_Ready(&__pyx_type_5_cdec___pyx_scope_struct_15___get__) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 179; __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_16___get__) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 209; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyType_Ready(&__pyx_type_5_cdec___pyx_scope_struct_16___get__) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 215; __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_17___iter__) < 0) {__pyx_filename = __pyx_f[4]; __pyx_lineno = 52; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec___pyx_scope_struct_17___iter__ = &__pyx_type_5_cdec___pyx_scope_struct_17___iter__;
-  if (PyType_Ready(&__pyx_type_5_cdec___pyx_scope_struct_18_todot) < 0) {__pyx_filename = __pyx_f[4]; __pyx_lineno = 57; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec___pyx_scope_struct_18_todot = &__pyx_type_5_cdec___pyx_scope_struct_18_todot;
-  if (PyType_Ready(&__pyx_type_5_cdec___pyx_scope_struct_19_lines) < 0) {__pyx_filename = __pyx_f[4]; __pyx_lineno = 58; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec___pyx_scope_struct_19_lines = &__pyx_type_5_cdec___pyx_scope_struct_19_lines;
-  if (PyType_Ready(&__pyx_type_5_cdec___pyx_scope_struct_20___iter__) < 0) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 44; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec___pyx_scope_struct_20___iter__ = &__pyx_type_5_cdec___pyx_scope_struct_20___iter__;
-  if (PyType_Ready(&__pyx_type_5_cdec___pyx_scope_struct_21___iter__) < 0) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 90; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyType_Ready(&__pyx_type_5_cdec___pyx_scope_struct_17___get__) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 221; __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_18___iter__) < 0) {__pyx_filename = __pyx_f[4]; __pyx_lineno = 52; __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___pyx_scope_struct_19_todot) < 0) {__pyx_filename = __pyx_f[4]; __pyx_lineno = 57; __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___pyx_scope_struct_20_lines) < 0) {__pyx_filename = __pyx_f[4]; __pyx_lineno = 58; __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_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___pyx_scope_struct_22__make_config) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 28; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec___pyx_scope_struct_22__make_config = &__pyx_type_5_cdec___pyx_scope_struct_22__make_config;
-  if (PyType_Ready(&__pyx_type_5_cdec___pyx_scope_struct_23___cinit__) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 43; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec___pyx_scope_struct_23___cinit__ = &__pyx_type_5_cdec___pyx_scope_struct_23___cinit__;
-  if (PyType_Ready(&__pyx_type_5_cdec___pyx_scope_struct_24_genexpr) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 54; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_5_cdec___pyx_scope_struct_24_genexpr = &__pyx_type_5_cdec___pyx_scope_struct_24_genexpr;
+  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___pyx_scope_struct_23__make_config) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 28; __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;
+  if (PyType_Ready(&__pyx_type_5_cdec___pyx_scope_struct_24___cinit__) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 43; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_5_cdec___pyx_scope_struct_24___cinit__ = &__pyx_type_5_cdec___pyx_scope_struct_24___cinit__;
+  if (PyType_Ready(&__pyx_type_5_cdec___pyx_scope_struct_25_genexpr) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 54; __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;
   /*--- Type import code ---*/
-  __pyx_ptype_4cdec_2sa_3_sa_Phrase = __Pyx_ImportType("cdec.sa._sa", "Phrase", sizeof(struct __pyx_obj_4cdec_2sa_3_sa_Phrase), 1); if (unlikely(!__pyx_ptype_4cdec_2sa_3_sa_Phrase)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_vtabptr_4cdec_2sa_3_sa_Phrase = (struct __pyx_vtabstruct_4cdec_2sa_3_sa_Phrase*)__Pyx_GetVtable(__pyx_ptype_4cdec_2sa_3_sa_Phrase->tp_dict); if (unlikely(!__pyx_vtabptr_4cdec_2sa_3_sa_Phrase)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_ptype_4cdec_2sa_3_sa_Rule = __Pyx_ImportType("cdec.sa._sa", "Rule", sizeof(struct __pyx_obj_4cdec_2sa_3_sa_Rule), 1); if (unlikely(!__pyx_ptype_4cdec_2sa_3_sa_Rule)) {__pyx_filename = __pyx_f[7]; __pyx_lineno = 7; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_2sa_3_sa_Phrase = __Pyx_ImportType("cdec.sa._sa", "Phrase", sizeof(struct __pyx_obj_4cdec_2sa_3_sa_Phrase), 1); if (unlikely(!__pyx_ptype_4cdec_2sa_3_sa_Phrase)) {__pyx_filename = __pyx_f[6]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_vtabptr_4cdec_2sa_3_sa_Phrase = (struct __pyx_vtabstruct_4cdec_2sa_3_sa_Phrase*)__Pyx_GetVtable(__pyx_ptype_4cdec_2sa_3_sa_Phrase->tp_dict); if (unlikely(!__pyx_vtabptr_4cdec_2sa_3_sa_Phrase)) {__pyx_filename = __pyx_f[6]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cdec_2sa_3_sa_Rule = __Pyx_ImportType("cdec.sa._sa", "Rule", sizeof(struct __pyx_obj_4cdec_2sa_3_sa_Rule), 1); if (unlikely(!__pyx_ptype_4cdec_2sa_3_sa_Rule)) {__pyx_filename = __pyx_f[6]; __pyx_lineno = 7; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   /*--- Variable import code ---*/
   /*--- Function import code ---*/
   __pyx_t_1 = __Pyx_ImportModule("cdec.sa._sa"); if (!__pyx_t_1) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
@@ -28212,7 +28292,7 @@ PyMODINIT_FUNC PyInit__cdec(void)
   Py_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   /*--- Execution code ---*/
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":3
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":3
  * cimport grammar
  * cimport cdec.sa._sa as _sa
  * import cdec.sa._sa as _sa             # <<<<<<<<<<<<<<
@@ -28230,7 +28310,7 @@ PyMODINIT_FUNC PyInit__cdec(void)
   if (PyObject_SetAttr(__pyx_m, __pyx_n_s___sa, __pyx_t_3) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 3; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/grammar.pxi":5
+  /* "/home/cdyer/cdec/python/src/grammar.pxi":5
  * import cdec.sa._sa as _sa
  * 
  * def _phrase(phrase):             # <<<<<<<<<<<<<<
@@ -28242,7 +28322,7 @@ PyMODINIT_FUNC PyInit__cdec(void)
   if (PyObject_SetAttr(__pyx_m, __pyx_n_s___phrase, __pyx_t_3) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 5; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":190
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":190
  *         return []
  * 
  * BLEU = Scorer('IBM_BLEU')             # <<<<<<<<<<<<<<
@@ -28254,7 +28334,7 @@ PyMODINIT_FUNC PyInit__cdec(void)
   if (PyObject_SetAttr(__pyx_m, __pyx_n_s__BLEU, __pyx_t_3) < 0) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 190; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":191
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":191
  * 
  * BLEU = Scorer('IBM_BLEU')
  * TER = Scorer('TER')             # <<<<<<<<<<<<<<
@@ -28265,7 +28345,7 @@ PyMODINIT_FUNC PyInit__cdec(void)
   if (PyObject_SetAttr(__pyx_m, __pyx_n_s__TER, __pyx_t_3) < 0) {__pyx_filename = __pyx_f[5]; __pyx_lineno = 191; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "/Users/vchahun/Sandbox/cdec/python/src/mteval.pxi":192
+  /* "/home/cdyer/cdec/python/src/mteval.pxi":192
  * BLEU = Scorer('IBM_BLEU')
  * TER = Scorer('TER')
  * CER = Scorer('CER')             # <<<<<<<<<<<<<<
@@ -28356,14 +28436,6 @@ PyMODINIT_FUNC PyInit__cdec(void)
   __Pyx_GOTREF(((PyObject *)__pyx_t_3));
   if (PyObject_SetAttr(__pyx_m, __pyx_n_s____test__, ((PyObject *)__pyx_t_3)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
-
-  /* "string.to_py":25
- * 
- * @cname("__pyx_convert_string_to_py_")
- * cdef object __pyx_convert_string_to_py_(string& s):             # <<<<<<<<<<<<<<
- *     return s.data()[:s.size()]
- * 
- */
   goto __pyx_L0;
   __pyx_L1_error:;
   __Pyx_XDECREF(__pyx_t_1);
@@ -28590,7 +28662,7 @@ static void __Pyx_RaiseArgtupleInvalid(
         more_or_less = "exactly";
     }
     PyErr_Format(PyExc_TypeError,
-                 "%s() takes %s %" PY_FORMAT_SIZE_T "d positional argument%s (%" PY_FORMAT_SIZE_T "d given)",
+                 "%s() takes %s %"PY_FORMAT_SIZE_T"d positional argument%s (%"PY_FORMAT_SIZE_T"d given)",
                  func_name, more_or_less, num_expected,
                  (num_expected == 1) ? "" : "s", num_found);
 }
@@ -28602,11 +28674,6 @@ static CYTHON_INLINE int __Pyx_CheckKeywordStrings(
 {
     PyObject* key = 0;
     Py_ssize_t pos = 0;
-#if CPYTHON_COMPILING_IN_PYPY
-    if (!kw_allowed && PyDict_Next(kwdict, &pos, &key, 0))
-        goto invalid_keyword;
-    return 1;
-#else
     while (PyDict_Next(kwdict, &pos, &key, 0)) {
         #if PY_MAJOR_VERSION < 3
         if (unlikely(!PyString_CheckExact(key)) && unlikely(!PyString_Check(key)))
@@ -28622,7 +28689,6 @@ invalid_keyword_type:
     PyErr_Format(PyExc_TypeError,
         "%s() keywords must be strings", function_name);
     return 0;
-#endif
 invalid_keyword:
     PyErr_Format(PyExc_TypeError,
     #if PY_MAJOR_VERSION < 3
@@ -28761,49 +28827,17 @@ bad:
     return -1;
 }
 
-static CYTHON_INLINE void __Pyx_RaiseTooManyValuesError(Py_ssize_t expected) {
-    PyErr_Format(PyExc_ValueError,
-                 "too many values to unpack (expected %" PY_FORMAT_SIZE_T "d)", expected);
-}
+
 
 static CYTHON_INLINE void __Pyx_RaiseNeedMoreValuesError(Py_ssize_t index) {
     PyErr_Format(PyExc_ValueError,
-                 "need more than %" PY_FORMAT_SIZE_T "d value%s to unpack",
+                 "need more than %"PY_FORMAT_SIZE_T"d value%s to unpack",
                  index, (index == 1) ? "" : "s");
 }
 
-static CYTHON_INLINE int __Pyx_IterFinish(void) {
-#if CYTHON_COMPILING_IN_CPYTHON
-    PyThreadState *tstate = PyThreadState_GET();
-    PyObject* exc_type = tstate->curexc_type;
-    if (unlikely(exc_type)) {
-        if (likely(exc_type == PyExc_StopIteration) || PyErr_GivenExceptionMatches(exc_type, PyExc_StopIteration)) {
-            PyObject *exc_value, *exc_tb;
-            exc_value = tstate->curexc_value;
-            exc_tb = tstate->curexc_traceback;
-            tstate->curexc_type = 0;
-            tstate->curexc_value = 0;
-            tstate->curexc_traceback = 0;
-            Py_DECREF(exc_type);
-            Py_XDECREF(exc_value);
-            Py_XDECREF(exc_tb);
-            return 0;
-        } else {
-            return -1;
-        }
-    }
-    return 0;
-#else
-    if (unlikely(PyErr_Occurred())) {
-        if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) {
-            PyErr_Clear();
-            return 0;
-        } else {
-            return -1;
-        }
-    }
-    return 0;
-#endif
+static CYTHON_INLINE void __Pyx_RaiseTooManyValuesError(Py_ssize_t expected) {
+    PyErr_Format(PyExc_ValueError,
+                 "too many values to unpack (expected %"PY_FORMAT_SIZE_T"d)", expected);
 }
 
 static int __Pyx_IternextUnpackEndCheck(PyObject *retval, Py_ssize_t expected) {
@@ -28811,54 +28845,45 @@ static int __Pyx_IternextUnpackEndCheck(PyObject *retval, Py_ssize_t expected) {
         Py_DECREF(retval);
         __Pyx_RaiseTooManyValuesError(expected);
         return -1;
-    } else {
-        return __Pyx_IterFinish();
+    } else if (PyErr_Occurred()) {
+        if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) {
+            PyErr_Clear();
+            return 0;
+        } else {
+            return -1;
+        }
     }
     return 0;
 }
 
 static CYTHON_INLINE PyObject *__Pyx_PyIter_Next2(PyObject* iterator, PyObject* defval) {
     PyObject* next;
-    iternextfunc iternext = Py_TYPE(iterator)->tp_iternext;
-#if CYTHON_COMPILING_IN_CPYTHON
-    if (unlikely(!iternext)) {
-#else
-    if (unlikely(!iternext) || unlikely(!PyIter_Check(iterator))) {
-#endif
+    if (unlikely(!PyIter_Check(iterator))) {
         PyErr_Format(PyExc_TypeError,
-            "%.200s object is not an iterator", Py_TYPE(iterator)->tp_name);
+            "%.200s object is not an iterator", iterator->ob_type->tp_name);
         return NULL;
     }
-    next = iternext(iterator);
-    if (likely(next))
+    next = (*(Py_TYPE(iterator)->tp_iternext))(iterator);
+    if (likely(next)) {
         return next;
-#if CYTHON_COMPILING_IN_CPYTHON
-#if PY_VERSION_HEX >= 0x03010000 || (PY_MAJOR_VERSION < 3 && PY_VERSION_HEX >= 0x02070000)
-    if (unlikely(iternext == &_PyObject_NextNotImplemented))
-        return NULL;
-#endif
-#endif
-    if (defval) {
-        PyObject* exc_type = PyErr_Occurred();
-        if (exc_type) {
-            if (unlikely(exc_type != PyExc_StopIteration) &&
-                    !PyErr_GivenExceptionMatches(exc_type, PyExc_StopIteration))
+    } else if (defval) {
+        if (PyErr_Occurred()) {
+            if(!PyErr_ExceptionMatches(PyExc_StopIteration))
                 return NULL;
             PyErr_Clear();
         }
         Py_INCREF(defval);
         return defval;
-    }
-    if (!PyErr_Occurred())
+    } else if (PyErr_Occurred()) {
+        return NULL;
+    } else {
         PyErr_SetNone(PyExc_StopIteration);
-    return NULL;
+        return NULL;
+    }
 }
 
 static double __Pyx__PyObject_AsDouble(PyObject* obj) {
     PyObject* float_value;
-#if CYTHON_COMPILING_IN_PYPY
-    float_value = PyNumber_Float(obj);
-#else
     if (Py_TYPE(obj)->tp_as_number && Py_TYPE(obj)->tp_as_number->nb_float) {
         return PyFloat_AsDouble(obj);
     } else if (PyUnicode_CheckExact(obj) || PyBytes_CheckExact(obj)) {
@@ -28875,7 +28900,6 @@ static double __Pyx__PyObject_AsDouble(PyObject* obj) {
         PyTuple_SET_ITEM(args, 0, 0);
         Py_DECREF(args);
     }
-#endif
     if (likely(float_value)) {
         double value = PyFloat_AS_DOUBLE(float_value);
         Py_DECREF(float_value);
@@ -28887,7 +28911,6 @@ bad:
 
 static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb) {
     PyObject *local_type, *local_value, *local_tb;
-#if CYTHON_COMPILING_IN_CPYTHON
     PyObject *tmp_type, *tmp_value, *tmp_tb;
     PyThreadState *tstate = PyThreadState_GET();
     local_type = tstate->curexc_type;
@@ -28896,27 +28919,19 @@ static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb)
     tstate->curexc_type = 0;
     tstate->curexc_value = 0;
     tstate->curexc_traceback = 0;
-#else
-    PyErr_Fetch(&local_type, &local_value, &local_tb);
-#endif
     PyErr_NormalizeException(&local_type, &local_value, &local_tb);
-#if CYTHON_COMPILING_IN_CPYTHON
     if (unlikely(tstate->curexc_type))
-#else
-    if (unlikely(PyErr_Occurred()))
-#endif
         goto bad;
     #if PY_MAJOR_VERSION >= 3
     if (unlikely(PyException_SetTraceback(local_value, local_tb) < 0))
         goto bad;
     #endif
-    Py_INCREF(local_type);
-    Py_INCREF(local_value);
-    Py_INCREF(local_tb);
     *type = local_type;
     *value = local_value;
     *tb = local_tb;
-#if CYTHON_COMPILING_IN_CPYTHON
+    Py_INCREF(local_type);
+    Py_INCREF(local_value);
+    Py_INCREF(local_tb);
     tmp_type = tstate->exc_type;
     tmp_value = tstate->exc_value;
     tmp_tb = tstate->exc_traceback;
@@ -28924,13 +28939,10 @@ static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb)
     tstate->exc_value = local_value;
     tstate->exc_traceback = local_tb;
     /* Make sure tstate is in a consistent state when we XDECREF
-       these objects (DECREF may run arbitrary code). */
+       these objects (XDECREF may run arbitrary code). */
     Py_XDECREF(tmp_type);
     Py_XDECREF(tmp_value);
     Py_XDECREF(tmp_tb);
-#else
-    PyErr_SetExcInfo(local_type, local_value, local_tb);
-#endif
     return 0;
 bad:
     *type = 0;
@@ -28943,7 +28955,6 @@ bad:
 }
 
 static CYTHON_INLINE void __Pyx_ExceptionSave(PyObject **type, PyObject **value, PyObject **tb) {
-#if CYTHON_COMPILING_IN_CPYTHON
     PyThreadState *tstate = PyThreadState_GET();
     *type = tstate->exc_type;
     *value = tstate->exc_value;
@@ -28951,12 +28962,8 @@ static CYTHON_INLINE void __Pyx_ExceptionSave(PyObject **type, PyObject **value,
     Py_XINCREF(*type);
     Py_XINCREF(*value);
     Py_XINCREF(*tb);
-#else
-    PyErr_GetExcInfo(type, value, tb);
-#endif
 }
 static void __Pyx_ExceptionReset(PyObject *type, PyObject *value, PyObject *tb) {
-#if CYTHON_COMPILING_IN_CPYTHON
     PyObject *tmp_type, *tmp_value, *tmp_tb;
     PyThreadState *tstate = PyThreadState_GET();
     tmp_type = tstate->exc_type;
@@ -28968,9 +28975,6 @@ static void __Pyx_ExceptionReset(PyObject *type, PyObject *value, PyObject *tb)
     Py_XDECREF(tmp_type);
     Py_XDECREF(tmp_value);
     Py_XDECREF(tmp_tb);
-#else
-    PyErr_SetExcInfo(type, value, tb);
-#endif
 }
 
 static PyObject *__Pyx_Import(PyObject *name, PyObject *from_list, long level) {
@@ -29044,6 +29048,7 @@ bad:
 
 static PyObject *__Pyx_FindPy2Metaclass(PyObject *bases) {
     PyObject *metaclass;
+    /* Default metaclass */
 #if PY_MAJOR_VERSION < 3
     if (PyTuple_Check(bases) && PyTuple_GET_SIZE(bases) > 0) {
         PyObject *base = PyTuple_GET_ITEM(bases, 0);
@@ -29073,6 +29078,7 @@ static PyObject *__Pyx_CreateClass(PyObject *bases, PyObject *dict, PyObject *na
     PyObject *metaclass;
     if (PyDict_SetItemString(dict, "__module__", modname) < 0)
         return NULL;
+    /* Python2 __metaclass__ */
     metaclass = PyDict_GetItemString(dict, "__metaclass__");
     if (metaclass) {
         Py_INCREF(metaclass);
@@ -29454,56 +29460,6 @@ __Pyx_CyFunction_repr(__pyx_CyFunctionObject *op)
                                PyString_AsString(func_name), (void *)op);
 #endif
 }
-#if CYTHON_COMPILING_IN_PYPY
-static PyObject * __Pyx_CyFunction_Call(PyObject *func, PyObject *arg, PyObject *kw) {
-    PyCFunctionObject* f = (PyCFunctionObject*)func;
-    PyCFunction meth = PyCFunction_GET_FUNCTION(func);
-    PyObject *self = PyCFunction_GET_SELF(func);
-    Py_ssize_t size;
-    switch (PyCFunction_GET_FLAGS(func) & ~(METH_CLASS | METH_STATIC | METH_COEXIST)) {
-    case METH_VARARGS:
-        if (likely(kw == NULL) || PyDict_Size(kw) == 0)
-            return (*meth)(self, arg);
-        break;
-    case METH_VARARGS | METH_KEYWORDS:
-        return (*(PyCFunctionWithKeywords)meth)(self, arg, kw);
-    case METH_NOARGS:
-        if (likely(kw == NULL) || PyDict_Size(kw) == 0) {
-            size = PyTuple_GET_SIZE(arg);
-            if (size == 0)
-                return (*meth)(self, NULL);
-            PyErr_Format(PyExc_TypeError,
-                "%.200s() takes no arguments (%zd given)",
-                f->m_ml->ml_name, size);
-            return NULL;
-        }
-        break;
-    case METH_O:
-        if (likely(kw == NULL) || PyDict_Size(kw) == 0) {
-            size = PyTuple_GET_SIZE(arg);
-            if (size == 1)
-                return (*meth)(self, PyTuple_GET_ITEM(arg, 0));
-            PyErr_Format(PyExc_TypeError,
-                "%.200s() takes exactly one argument (%zd given)",
-                f->m_ml->ml_name, size);
-            return NULL;
-        }
-        break;
-    default:
-        PyErr_SetString(PyExc_SystemError, "Bad call flags in "
-                        "__Pyx_CyFunction_Call. METH_OLDARGS is no "
-                        "longer supported!");
-        return NULL;
-    }
-    PyErr_Format(PyExc_TypeError, "%.200s() takes no keyword arguments",
-                 f->m_ml->ml_name);
-    return NULL;
-}
-#else
-static PyObject * __Pyx_CyFunction_Call(PyObject *func, PyObject *arg, PyObject *kw) {
-	return PyCFunction_Call(func, arg, kw);
-}
-#endif
 static PyTypeObject __pyx_CyFunctionType_type = {
     PyVarObject_HEAD_INIT(0, 0)
     __Pyx_NAMESTR("cython_function_or_method"), /*tp_name*/
@@ -29523,7 +29479,7 @@ static PyTypeObject __pyx_CyFunctionType_type = {
     0,                                  /*tp_as_sequence*/
     0,                                  /*tp_as_mapping*/
     0,                                  /*tp_hash*/
-    __Pyx_CyFunction_Call,              /*tp_call*/
+    __Pyx_PyCFunction_Call,             /*tp_call*/
     0,                                  /*tp_str*/
     0,                                  /*tp_getattro*/
     0,                                  /*tp_setattro*/
@@ -29559,16 +29515,15 @@ static PyTypeObject __pyx_CyFunctionType_type = {
     0,                                  /*tp_version_tag*/
 #endif
 };
-static int __Pyx_CyFunction_init(void) {
-#if !CYTHON_COMPILING_IN_PYPY
-    __pyx_CyFunctionType_type.tp_call = PyCFunction_Call;
-#endif
+static int __Pyx_CyFunction_init(void)
+{
     if (PyType_Ready(&__pyx_CyFunctionType_type) < 0)
         return -1;
     __pyx_CyFunctionType = &__pyx_CyFunctionType_type;
     return 0;
 }
-static CYTHON_INLINE void *__Pyx_CyFunction_InitDefaults(PyObject *func, size_t size, int pyobjects) {
+void *__Pyx_CyFunction_InitDefaults(PyObject *func, size_t size, int pyobjects)
+{
     __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
     m->defaults = PyMem_Malloc(size);
     if (!m->defaults)
@@ -29577,16 +29532,14 @@ static CYTHON_INLINE void *__Pyx_CyFunction_InitDefaults(PyObject *func, size_t
     m->defaults_pyobjects = pyobjects;
     return m->defaults;
 }
-static CYTHON_INLINE void __Pyx_CyFunction_SetDefaultsTuple(PyObject *func, PyObject *tuple) {
+static void __Pyx_CyFunction_SetDefaultsTuple(PyObject *func, PyObject *tuple)
+{
     __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
     m->defaults_tuple = tuple;
     Py_INCREF(tuple);
 }
 
 static CYTHON_INLINE int __Pyx_PyBytes_Equals(PyObject* s1, PyObject* s2, int equals) {
-#if CYTHON_COMPILING_IN_PYPY
-    return PyObject_RichCompareBool(s1, s2, equals);
-#else
     if (s1 == s2) {
         return (equals == Py_EQ);
     } else if (PyBytes_CheckExact(s1) & PyBytes_CheckExact(s2)) {
@@ -29614,13 +29567,9 @@ static CYTHON_INLINE int __Pyx_PyBytes_Equals(PyObject* s1, PyObject* s2, int eq
         Py_DECREF(py_result);
         return result;
     }
-#endif
 }
 
 static CYTHON_INLINE int __Pyx_PyUnicode_Equals(PyObject* s1, PyObject* s2, int equals) {
-#if CYTHON_COMPILING_IN_PYPY
-    return PyObject_RichCompareBool(s1, s2, equals);
-#else
     if (s1 == s2) {
         return (equals == Py_EQ);
     } else if (PyUnicode_CheckExact(s1) & PyUnicode_CheckExact(s2)) {
@@ -29660,7 +29609,6 @@ static CYTHON_INLINE int __Pyx_PyUnicode_Equals(PyObject* s1, PyObject* s2, int
         Py_DECREF(py_result);
         return result;
     }
-#endif
 }
 
 static CYTHON_INLINE unsigned char __Pyx_PyInt_AsUnsignedChar(PyObject* x) {
@@ -30063,8 +30011,8 @@ static CYTHON_INLINE signed PY_LONG_LONG __Pyx_PyInt_AsSignedLongLong(PyObject*
     }
 }
 
-static void __Pyx_WriteUnraisable(const char *name, CYTHON_UNUSED int clineno,
-                                  CYTHON_UNUSED int lineno, CYTHON_UNUSED const char *filename) {
+static void __Pyx_WriteUnraisable(const char *name, int clineno,
+                                  int lineno, const char *filename) {
     PyObject *old_exc, *old_val, *old_tb;
     PyObject *ctx;
     __Pyx_ErrFetch(&old_exc, &old_val, &old_tb);
@@ -30084,7 +30032,6 @@ static void __Pyx_WriteUnraisable(const char *name, CYTHON_UNUSED int clineno,
 
 static CYTHON_INLINE void __Pyx_ExceptionSwap(PyObject **type, PyObject **value, PyObject **tb) {
     PyObject *tmp_type, *tmp_value, *tmp_tb;
-#if CYTHON_COMPILING_IN_CPYTHON
     PyThreadState *tstate = PyThreadState_GET();
     tmp_type = tstate->exc_type;
     tmp_value = tstate->exc_value;
@@ -30092,10 +30039,6 @@ static CYTHON_INLINE void __Pyx_ExceptionSwap(PyObject **type, PyObject **value,
     tstate->exc_type = *type;
     tstate->exc_value = *value;
     tstate->exc_traceback = *tb;
-#else
-    PyErr_GetExcInfo(&tmp_type, &tmp_value, &tmp_tb);
-    PyErr_SetExcInfo(*type, *value, *tb);
-#endif
     *type = tmp_type;
     *value = tmp_value;
     *tb = tmp_tb;
@@ -30105,70 +30048,9 @@ static PyObject *__Pyx_Generator_Next(PyObject *self);
 static PyObject *__Pyx_Generator_Send(PyObject *self, PyObject *value);
 static PyObject *__Pyx_Generator_Close(PyObject *self);
 static PyObject *__Pyx_Generator_Throw(PyObject *gen, PyObject *args);
-static PyTypeObject *__pyx_GeneratorType = 0;
-#define __Pyx_Generator_CheckExact(obj) (Py_TYPE(obj) == __pyx_GeneratorType)
-#define __Pyx_Generator_Undelegate(gen) Py_CLEAR((gen)->yieldfrom)
-#if 1 || PY_VERSION_HEX < 0x030300B0
-static int __Pyx_PyGen_FetchStopIterationValue(PyObject **pvalue) {
-    PyObject *et, *ev, *tb;
-    PyObject *value = NULL;
-    __Pyx_ErrFetch(&et, &ev, &tb);
-    if (!et) {
-        Py_XDECREF(tb);
-        Py_XDECREF(ev);
-        Py_INCREF(Py_None);
-        *pvalue = Py_None;
-        return 0;
-    }
-    if (unlikely(et != PyExc_StopIteration) &&
-            unlikely(!PyErr_GivenExceptionMatches(et, PyExc_StopIteration))) {
-        __Pyx_ErrRestore(et, ev, tb);
-        return -1;
-    }
-    if (likely(et == PyExc_StopIteration)) {
-        if (likely(!ev) || !PyObject_IsInstance(ev, PyExc_StopIteration)) {
-            if (!ev) {
-                Py_INCREF(Py_None);
-                ev = Py_None;
-            }
-            Py_XDECREF(tb);
-            Py_DECREF(et);
-            *pvalue = ev;
-            return 0;
-        }
-    }
-    PyErr_NormalizeException(&et, &ev, &tb);
-    if (unlikely(!PyObject_IsInstance(ev, PyExc_StopIteration))) {
-        __Pyx_ErrRestore(et, ev, tb);
-        return -1;
-    }
-    Py_XDECREF(tb);
-    Py_DECREF(et);
-#if PY_VERSION_HEX >= 0x030300A0
-    value = ((PyStopIterationObject *)ev)->value;
-    Py_INCREF(value);
-    Py_DECREF(ev);
-#else
-    {
-        PyObject* args = PyObject_GetAttrString(ev, "args");
-        Py_DECREF(ev);
-        if (likely(args)) {
-            value = PyObject_GetItem(args, 0);
-            Py_DECREF(args);
-        }
-        if (unlikely(!value)) {
-            __Pyx_ErrRestore(NULL, NULL, NULL);
-            Py_INCREF(Py_None);
-            value = Py_None;
-        }
-    }
-#endif
-    *pvalue = value;
-    return 0;
-}
-#endif
 static CYTHON_INLINE
-void __Pyx_Generator_ExceptionClear(__pyx_GeneratorObject *self) {
+void __Pyx_Generator_ExceptionClear(__pyx_GeneratorObject *self)
+{
     PyObject *exc_type = self->exc_type;
     PyObject *exc_value = self->exc_value;
     PyObject *exc_traceback = self->exc_traceback;
@@ -30180,18 +30062,14 @@ void __Pyx_Generator_ExceptionClear(__pyx_GeneratorObject *self) {
     Py_XDECREF(exc_traceback);
 }
 static CYTHON_INLINE
-int __Pyx_Generator_CheckRunning(__pyx_GeneratorObject *gen) {
-    if (unlikely(gen->is_running)) {
+PyObject *__Pyx_Generator_SendEx(__pyx_GeneratorObject *self, PyObject *value)
+{
+    PyObject *retval;
+    if (unlikely(self->is_running)) {
         PyErr_SetString(PyExc_ValueError,
                         "generator already executing");
-        return 1;
+        return NULL;
     }
-    return 0;
-}
-static CYTHON_INLINE
-PyObject *__Pyx_Generator_SendEx(__pyx_GeneratorObject *self, PyObject *value) {
-    PyObject *retval;
-    assert(!self->is_running);
     if (unlikely(self->resume_label == 0)) {
         if (unlikely(value && value != Py_None)) {
             PyErr_SetString(PyExc_TypeError,
@@ -30204,240 +30082,81 @@ PyObject *__Pyx_Generator_SendEx(__pyx_GeneratorObject *self, PyObject *value) {
         PyErr_SetNone(PyExc_StopIteration);
         return NULL;
     }
-    if (value) {
-#if CYTHON_COMPILING_IN_PYPY
-#else
-        /* Generators always return to their most recent caller, not
-         * necessarily their creator. */
-        if (self->exc_traceback) {
-            PyThreadState *tstate = PyThreadState_GET();
-            PyTracebackObject *tb = (PyTracebackObject *) self->exc_traceback;
-            PyFrameObject *f = tb->tb_frame;
-            Py_XINCREF(tstate->frame);
-            assert(f->f_back == NULL);
-            f->f_back = tstate->frame;
-        }
-#endif
-        __Pyx_ExceptionSwap(&self->exc_type, &self->exc_value,
-                            &self->exc_traceback);
-    } else {
+    if (value)
+        __Pyx_ExceptionSwap(&self->exc_type, &self->exc_value, &self->exc_traceback);
+    else
         __Pyx_Generator_ExceptionClear(self);
-    }
     self->is_running = 1;
     retval = self->body((PyObject *) self, value);
     self->is_running = 0;
-    if (retval) {
-        __Pyx_ExceptionSwap(&self->exc_type, &self->exc_value,
-                            &self->exc_traceback);
-#if CYTHON_COMPILING_IN_PYPY
-#else
-        /* Don't keep the reference to f_back any longer than necessary.  It
-         * may keep a chain of frames alive or it could create a reference
-         * cycle. */
-        if (self->exc_traceback) {
-            PyTracebackObject *tb = (PyTracebackObject *) self->exc_traceback;
-            PyFrameObject *f = tb->tb_frame;
-            Py_CLEAR(f->f_back);
-        }
-#endif
-    } else {
+    if (retval)
+        __Pyx_ExceptionSwap(&self->exc_type, &self->exc_value, &self->exc_traceback);
+    else
         __Pyx_Generator_ExceptionClear(self);
-    }
     return retval;
 }
-static CYTHON_INLINE
-PyObject *__Pyx_Generator_FinishDelegation(__pyx_GeneratorObject *gen) {
-    PyObject *ret;
-    PyObject *val = NULL;
-    __Pyx_Generator_Undelegate(gen);
-    __Pyx_PyGen_FetchStopIterationValue(&val);
-    ret = __Pyx_Generator_SendEx(gen, val);
-    Py_XDECREF(val);
-    return ret;
-}
-static PyObject *__Pyx_Generator_Next(PyObject *self) {
-    __pyx_GeneratorObject *gen = (__pyx_GeneratorObject*) self;
-    PyObject *yf = gen->yieldfrom;
-    if (unlikely(__Pyx_Generator_CheckRunning(gen)))
-        return NULL;
-    if (yf) {
-        PyObject *ret;
-        gen->is_running = 1;
-        ret = Py_TYPE(yf)->tp_iternext(yf);
-        gen->is_running = 0;
-        if (likely(ret)) {
-            return ret;
-        }
-        return __Pyx_Generator_FinishDelegation(gen);
-    }
-    return __Pyx_Generator_SendEx(gen, Py_None);
+static PyObject *__Pyx_Generator_Next(PyObject *self)
+{
+    return __Pyx_Generator_SendEx((__pyx_GeneratorObject *) self, Py_None);
 }
-static PyObject *__Pyx_Generator_Send(PyObject *self, PyObject *value) {
-    __pyx_GeneratorObject *gen = (__pyx_GeneratorObject*) self;
-    PyObject *yf = gen->yieldfrom;
-    if (unlikely(__Pyx_Generator_CheckRunning(gen)))
-        return NULL;
-    if (yf) {
-        PyObject *ret;
-        gen->is_running = 1;
-        if (__Pyx_Generator_CheckExact(yf)) {
-            ret = __Pyx_Generator_Send(yf, value);
-        } else {
-            if (value == Py_None)
-                ret = PyIter_Next(yf);
-            else
-                ret = PyObject_CallMethod(yf, (char*)"send", (char*)"O", value);
-        }
-        gen->is_running = 0;
-        if (likely(ret)) {
-            return ret;
-        }
-        return __Pyx_Generator_FinishDelegation(gen);
-    }
-    return __Pyx_Generator_SendEx(gen, value);
-}
-static int __Pyx_Generator_CloseIter(__pyx_GeneratorObject *gen, PyObject *yf) {
-    PyObject *retval = NULL;
-    int err = 0;
-    if (__Pyx_Generator_CheckExact(yf)) {
-        retval = __Pyx_Generator_Close(yf);
-        if (!retval)
-            return -1;
-    } else {
-        PyObject *meth;
-        gen->is_running = 1;
-        meth = PyObject_GetAttrString(yf, "close");
-        if (unlikely(!meth)) {
-            if (!PyErr_ExceptionMatches(PyExc_AttributeError)) {
-                PyErr_WriteUnraisable(yf);
-            }
-            PyErr_Clear();
-        } else {
-            retval = PyObject_CallFunction(meth, NULL);
-            Py_DECREF(meth);
-            if (!retval)
-                err = -1;
-        }
-        gen->is_running = 0;
-    }
-    Py_XDECREF(retval);
-    return err;
+static PyObject *__Pyx_Generator_Send(PyObject *self, PyObject *value)
+{
+    return __Pyx_Generator_SendEx((__pyx_GeneratorObject *) self, value);
 }
-static PyObject *__Pyx_Generator_Close(PyObject *self) {
-    __pyx_GeneratorObject *gen = (__pyx_GeneratorObject *) self;
-    PyObject *retval, *raised_exception;
-    PyObject *yf = gen->yieldfrom;
-    int err = 0;
-    if (unlikely(__Pyx_Generator_CheckRunning(gen)))
-        return NULL;
-    if (yf) {
-        Py_INCREF(yf);
-        err = __Pyx_Generator_CloseIter(gen, yf);
-        __Pyx_Generator_Undelegate(gen);
-        Py_DECREF(yf);
-    }
-    if (err == 0)
+static PyObject *__Pyx_Generator_Close(PyObject *self)
+{
+    __pyx_GeneratorObject *generator = (__pyx_GeneratorObject *) self;
+    PyObject *retval;
 #if PY_VERSION_HEX < 0x02050000
-        PyErr_SetNone(PyExc_StopIteration);
+    PyErr_SetNone(PyExc_StopIteration);
 #else
-        PyErr_SetNone(PyExc_GeneratorExit);
+    PyErr_SetNone(PyExc_GeneratorExit);
 #endif
-    retval = __Pyx_Generator_SendEx(gen, NULL);
+    retval = __Pyx_Generator_SendEx(generator, NULL);
     if (retval) {
         Py_DECREF(retval);
         PyErr_SetString(PyExc_RuntimeError,
                         "generator ignored GeneratorExit");
         return NULL;
     }
-    raised_exception = PyErr_Occurred();
-    if (!raised_exception
-        || raised_exception == PyExc_StopIteration
-#if PY_VERSION_HEX >= 0x02050000
-        || raised_exception == PyExc_GeneratorExit
-        || PyErr_GivenExceptionMatches(raised_exception, PyExc_GeneratorExit)
+#if PY_VERSION_HEX < 0x02050000
+    if (PyErr_ExceptionMatches(PyExc_StopIteration))
+#else
+    if (PyErr_ExceptionMatches(PyExc_StopIteration)
+        || PyErr_ExceptionMatches(PyExc_GeneratorExit))
 #endif
-        || PyErr_GivenExceptionMatches(raised_exception, PyExc_StopIteration))
     {
-        if (raised_exception) PyErr_Clear();      /* ignore these errors */
+        PyErr_Clear();          /* ignore these errors */
         Py_INCREF(Py_None);
         return Py_None;
     }
     return NULL;
 }
-static PyObject *__Pyx_Generator_Throw(PyObject *self, PyObject *args) {
-    __pyx_GeneratorObject *gen = (__pyx_GeneratorObject *) self;
+static PyObject *__Pyx_Generator_Throw(PyObject *self, PyObject *args)
+{
+    __pyx_GeneratorObject *generator = (__pyx_GeneratorObject *) self;
     PyObject *typ;
     PyObject *tb = NULL;
     PyObject *val = NULL;
-    PyObject *yf = gen->yieldfrom;
     if (!PyArg_UnpackTuple(args, (char *)"throw", 1, 3, &typ, &val, &tb))
         return NULL;
-    if (unlikely(__Pyx_Generator_CheckRunning(gen)))
-        return NULL;
-    if (yf) {
-        PyObject *ret;
-        Py_INCREF(yf);
-#if PY_VERSION_HEX >= 0x02050000
-        if (PyErr_GivenExceptionMatches(typ, PyExc_GeneratorExit)) {
-            int err = __Pyx_Generator_CloseIter(gen, yf);
-            Py_DECREF(yf);
-            __Pyx_Generator_Undelegate(gen);
-            if (err < 0)
-                return __Pyx_Generator_SendEx(gen, NULL);
-            goto throw_here;
-        }
-#endif
-        gen->is_running = 1;
-        if (__Pyx_Generator_CheckExact(yf)) {
-            ret = __Pyx_Generator_Throw(yf, args);
-        } else {
-            PyObject *meth = PyObject_GetAttrString(yf, "throw");
-            if (unlikely(!meth)) {
-                Py_DECREF(yf);
-                if (!PyErr_ExceptionMatches(PyExc_AttributeError)) {
-                    gen->is_running = 0;
-                    return NULL;
-                }
-                PyErr_Clear();
-                __Pyx_Generator_Undelegate(gen);
-                gen->is_running = 0;
-                goto throw_here;
-            }
-            ret = PyObject_CallObject(meth, args);
-            Py_DECREF(meth);
-        }
-        gen->is_running = 0;
-        Py_DECREF(yf);
-        if (!ret) {
-            ret = __Pyx_Generator_FinishDelegation(gen);
-        }
-        return ret;
-    }
-throw_here:
     __Pyx_Raise(typ, val, tb, NULL);
-    return __Pyx_Generator_SendEx(gen, NULL);
+    return __Pyx_Generator_SendEx(generator, NULL);
 }
-static int __Pyx_Generator_traverse(PyObject *self, visitproc visit, void *arg) {
+static int
+__Pyx_Generator_traverse(PyObject *self, visitproc visit, void *arg)
+{
     __pyx_GeneratorObject *gen = (__pyx_GeneratorObject *) self;
     Py_VISIT(gen->closure);
     Py_VISIT(gen->classobj);
-    Py_VISIT(gen->yieldfrom);
     Py_VISIT(gen->exc_type);
     Py_VISIT(gen->exc_value);
     Py_VISIT(gen->exc_traceback);
     return 0;
 }
-static int __Pyx_Generator_clear(PyObject *self) {
-    __pyx_GeneratorObject *gen = (__pyx_GeneratorObject *) self;
-    Py_CLEAR(gen->closure);
-    Py_CLEAR(gen->classobj);
-    Py_CLEAR(gen->yieldfrom);
-    Py_CLEAR(gen->exc_type);
-    Py_CLEAR(gen->exc_value);
-    Py_CLEAR(gen->exc_traceback);
-    return 0;
-}
-static void __Pyx_Generator_dealloc(PyObject *self) {
+static void
+__Pyx_Generator_dealloc(PyObject *self)
+{
     __pyx_GeneratorObject *gen = (__pyx_GeneratorObject *) self;
     PyObject_GC_UnTrack(gen);
     if (gen->gi_weakreflist != NULL)
@@ -30449,10 +30168,16 @@ static void __Pyx_Generator_dealloc(PyObject *self) {
             return;                     /* resurrected.  :( */
     }
     PyObject_GC_UnTrack(self);
-    __Pyx_Generator_clear(self);
+    Py_CLEAR(gen->closure);
+    Py_CLEAR(gen->classobj);
+    Py_CLEAR(gen->exc_type);
+    Py_CLEAR(gen->exc_value);
+    Py_CLEAR(gen->exc_traceback);
     PyObject_GC_Del(gen);
 }
-static void __Pyx_Generator_del(PyObject *self) {
+static void
+__Pyx_Generator_del(PyObject *self)
+{
     PyObject *res;
     PyObject *error_type, *error_value, *error_traceback;
     __pyx_GeneratorObject *gen = (__pyx_GeneratorObject *) self;
@@ -30481,13 +30206,11 @@ static void __Pyx_Generator_del(PyObject *self) {
         _Py_NewReference(self);
         self->ob_refcnt = refcnt;
     }
-#if CYTHON_COMPILING_FOR_CPYTHON
     assert(PyType_IS_GC(self->ob_type) &&
            _Py_AS_GC(self)->gc.gc_refs != _PyGC_REFS_UNTRACKED);
     /* If Py_REF_DEBUG, _Py_NewReference bumped _Py_RefTotal, so
      * we need to undo that. */
     _Py_DEC_REFTOTAL;
-#endif
     /* If Py_TRACE_REFS, _Py_NewReference re-added self to the object
      * chain, so no more to do there.
      * If COUNT_ALLOCS, the original decref bumped tp_frees, and
@@ -30495,17 +30218,13 @@ static void __Pyx_Generator_del(PyObject *self) {
      * undone.
      */
 #ifdef COUNT_ALLOCS
-    --Py_TYPE(self)->tp_frees;
-    --Py_TYPE(self)->tp_allocs;
+    --self->ob_type->tp_frees;
+    --self->ob_type->tp_allocs;
 #endif
 }
 static PyMemberDef __pyx_Generator_memberlist[] = {
     {(char *) "gi_running",
-#if PY_VERSION_HEX >= 0x02060000
-     T_BOOL,
-#else
      T_INT,
-#endif
      offsetof(__pyx_GeneratorObject, is_running),
      READONLY,
      NULL},
@@ -30517,7 +30236,7 @@ static PyMethodDef __pyx_Generator_methods[] = {
     {__Pyx_NAMESTR("close"), (PyCFunction) __Pyx_Generator_Close, METH_NOARGS, 0},
     {0, 0, 0, 0}
 };
-static PyTypeObject __pyx_GeneratorType_type = {
+static PyTypeObject __pyx_GeneratorType = {
     PyVarObject_HEAD_INIT(0, 0)
     __Pyx_NAMESTR("generator"),         /*tp_name*/
     sizeof(__pyx_GeneratorObject),      /*tp_basicsize*/
@@ -30538,7 +30257,7 @@ static PyTypeObject __pyx_GeneratorType_type = {
     0,                                  /*tp_hash*/
     0,                                  /*tp_call*/
     0,                                  /*tp_str*/
-    0,                                  /*tp_getattro*/
+    PyObject_GenericGetAttr,            /*tp_getattro*/
     0,                                  /*tp_setattro*/
     0,                                  /*tp_as_buffer*/
     Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC, /* tp_flags*/
@@ -30547,7 +30266,7 @@ static PyTypeObject __pyx_GeneratorType_type = {
     0,                                  /*tp_clear*/
     0,                                  /*tp_richcompare*/
     offsetof(__pyx_GeneratorObject, gi_weakreflist), /* tp_weaklistoffse */
-    0,                                  /*tp_iter*/
+    PyObject_SelfIter,                  /*tp_iter*/
     (iternextfunc) __Pyx_Generator_Next, /*tp_iternext*/
     __pyx_Generator_methods,            /*tp_methods*/
     __pyx_Generator_memberlist,         /*tp_members*/
@@ -30572,10 +30291,12 @@ static PyTypeObject __pyx_GeneratorType_type = {
     0,                                  /*tp_version_tag*/
 #endif
 };
-static __pyx_GeneratorObject *__Pyx_Generator_New(__pyx_generator_body_t body,
-                                                  PyObject *closure) {
+static
+__pyx_GeneratorObject *__Pyx_Generator_New(__pyx_generator_body_t body,
+                                           PyObject *closure)
+{
     __pyx_GeneratorObject *gen =
-        PyObject_GC_New(__pyx_GeneratorObject, &__pyx_GeneratorType_type);
+        PyObject_GC_New(__pyx_GeneratorObject, &__pyx_GeneratorType);
     if (gen == NULL)
         return NULL;
     gen->body = body;
@@ -30584,7 +30305,6 @@ static __pyx_GeneratorObject *__Pyx_Generator_New(__pyx_generator_body_t body,
     gen->is_running = 0;
     gen->resume_label = 0;
     gen->classobj = NULL;
-    gen->yieldfrom = NULL;
     gen->exc_type = NULL;
     gen->exc_value = NULL;
     gen->exc_traceback = NULL;
@@ -30592,14 +30312,9 @@ static __pyx_GeneratorObject *__Pyx_Generator_New(__pyx_generator_body_t body,
     PyObject_GC_Track(gen);
     return gen;
 }
-static int __pyx_Generator_init(void) {
-    __pyx_GeneratorType_type.tp_getattro = PyObject_GenericGetAttr;
-    __pyx_GeneratorType_type.tp_iter = PyObject_SelfIter;
-    if (PyType_Ready(&__pyx_GeneratorType_type)) {
-        return -1;
-    }
-    __pyx_GeneratorType = &__pyx_GeneratorType_type;
-    return 0;
+static int __pyx_Generator_init(void)
+{
+    return PyType_Ready(&__pyx_GeneratorType);
 }
 
 static int __Pyx_check_binary_version(void) {