diff --git a/bin/parser/train.py b/bin/parser/train.py
index abd5eb16e..497ecd6b1 100755
--- a/bin/parser/train.py
+++ b/bin/parser/train.py
@@ -85,12 +85,16 @@ def train(Language, gold_tuples, model_dir, n_iter=15, feat_set=u'basic',
           use_orig_arc_eager=False):
     dep_model_dir = path.join(model_dir, 'deps')
     ner_model_dir = path.join(model_dir, 'ner')
+    pos_model_dir = path.join(model_dir, 'pos')
     if path.exists(dep_model_dir):
         shutil.rmtree(dep_model_dir)
     if path.exists(ner_model_dir):
         shutil.rmtree(ner_model_dir)
+    if path.exists(pos_model_dir):
+        shutil.rmtree(pos_model_dir)
     os.mkdir(dep_model_dir)
     os.mkdir(ner_model_dir)
+    os.mkdir(pos_model_dir)
 
     Config.write(dep_model_dir, 'config', features=feat_set, seed=seed,
                  labels=ArcEager.get_labels(gold_tuples),
@@ -140,7 +144,9 @@ def train(Language, gold_tuples, model_dir, n_iter=15, feat_set=u'basic',
         print('%d:\t%d\t%.3f\t%.3f\t%.3f\t%.3f' % (itn, loss, scorer.uas, scorer.ents_f,
                                                    scorer.tags_acc,
                                                    scorer.token_acc))
+    print('end training')
     nlp.end_training(model_dir)
+    print('done')
 
 def evaluate(Language, gold_tuples, model_dir, gold_preproc=False, verbose=False,
              beam_width=None):
diff --git a/spacy/lemmatizer.py b/spacy/lemmatizer.py
index 5e08e80a4..dc8c2b03b 100644
--- a/spacy/lemmatizer.py
+++ b/spacy/lemmatizer.py
@@ -16,9 +16,9 @@ class Lemmatizer(object):
         index = {}
         exc = {}
         for pos in ['adj', 'adv', 'noun', 'verb']:
-            index[pos] = read_index(path.join(data_dir, 'index.%s' % pos))
-            exc[pos] = read_exc(path.join(data_dir, '%s.exc' % pos))
-        rules = json.load(open(path.join(data_dir, 'lemma_rules.json')))
+            index[pos] = read_index(path.join(data_dir, 'wordnet', 'index.%s' % pos))
+            exc[pos] = read_exc(path.join(data_dir, 'wordnet', '%s.exc' % pos))
+        rules = json.load(open(path.join(data_dir, 'vocab', 'lemma_rules.json')))
         return cls(index, exc, rules)
 
     def __init__(self, index, exceptions, rules):
@@ -33,10 +33,8 @@ class Lemmatizer(object):
             pos = 'verb'
         elif pos == ADJ:
             pos = 'adj'
-        else:
-            return string
         lemmas = lemmatize(string, self.index[pos], self.exc[pos], self.rules.get(pos, []))
-        return min(lemmas)
+        return lemmas
 
     def noun(self, string):
         return self(string, 'noun')
diff --git a/spacy/matcher.pyx b/spacy/matcher.pyx
index b8a45d469..88a4f9ba2 100644
--- a/spacy/matcher.pyx
+++ b/spacy/matcher.pyx
@@ -54,8 +54,6 @@ cdef int match(const Pattern* pattern, const TokenC* token) except -1:
     cdef int i
     for i in range(pattern.length):
         if get_token_attr(token, pattern.spec[i].attr) != pattern.spec[i].value:
-            print "Pattern fail", pattern.spec[i].attr, pattern.spec[i].value
-            print get_token_attr(token, pattern.spec[i].attr)
             return False
     return True
 
@@ -82,7 +80,6 @@ def _convert_strings(token_specs, string_store):
             if isinstance(value, bool):
                 value = int(value)
             converted[-1].append((attr, value))
-            print "Converted", converted[-1]
     return converted
     
 
@@ -175,13 +172,11 @@ cdef class Matcher:
         cdef Pattern* state
         matches = []
         for token_i in range(doc.length):
-            print 'check', doc[token_i].orth_
             token = &doc.data[token_i]
             q = 0
             for i in range(partials.size()):
                 state = partials.at(i)
                 if match(state, token):
-                    print 'match!'
                     if is_final(state):
                         matches.append(get_entity(state, token, token_i))
                     else:
@@ -191,7 +186,6 @@ cdef class Matcher:
             for i in range(self.n_patterns):
                 state = self.patterns[i]
                 if match(state, token):
-                    print 'match!'
                     if is_final(state):
                         matches.append(get_entity(state, token, token_i))
                     else:
diff --git a/spacy/morphology.pyx b/spacy/morphology.pyx
index 2ce484d7b..2cc5552f9 100644
--- a/spacy/morphology.pyx
+++ b/spacy/morphology.pyx
@@ -43,6 +43,7 @@ cdef class Morphology:
             analysis = <MorphAnalysisC*>self.mem.alloc(1, sizeof(MorphAnalysisC))
             analysis.tag = self.rich_tags[tag_id]
             analysis.lemma = self.lemmatize(analysis.tag.pos, token.lex.orth)
+            self._cache.set(tag_id, token.lex.orth, analysis)
         token.lemma = analysis.lemma
         token.pos = analysis.tag.pos
         token.tag = analysis.tag.name
diff --git a/spacy/syntax/stateclass.pyx b/spacy/syntax/stateclass.pyx
index 6f7951987..81c31be97 100644
--- a/spacy/syntax/stateclass.pyx
+++ b/spacy/syntax/stateclass.pyx
@@ -16,12 +16,11 @@ cdef class StateClass:
         cdef int i
         for i in range(length + (PADDING * 2)):
             self._ents[i].end = -1
+            self._sent[i].l_edge = i
+            self._sent[i].r_edge = i
         for i in range(length, length + (PADDING * 2)):
             self._sent[i].lex = &EMPTY_LEXEME
         self._sent += PADDING
-        for i in range(length):
-            self._sent[i].l_edge = i
-            self._sent[i].r_edge = i
         self._ents += PADDING
         self._buffer += PADDING
         self._stack += PADDING
@@ -162,11 +161,11 @@ cdef class StateClass:
         cdef int dist = h_i - c_i
         cdef TokenC* h = &self._sent[h_i]
         if c_i > h_i:
+            h.r_edge = self.R_(h_i, 2).r_edge if h.r_kids >= 2 else h_i
             h.r_kids -= 1
-            h.r_edge = self.R_(h_i, 2).r_edge if h.r_kids >= 1 else h_i
         else:
+            h.l_edge = self.L_(h_i, 2).l_edge if h.l_kids >= 2 else h_i
             h.l_kids -= 1
-            h.l_edge = self.L_(h_i, 2).l_edge if h.l_kids >= 1 else h_i
 
     cdef void open_ent(self, int label) nogil:
         self._ents[self._e_i].start = self.B(0)
diff --git a/spacy/tokens/doc.pyx b/spacy/tokens/doc.pyx
index 1f687b046..16f0d2f46 100644
--- a/spacy/tokens/doc.pyx
+++ b/spacy/tokens/doc.pyx
@@ -67,6 +67,8 @@ cdef class Doc:
         cdef int i
         for i in range(size + (PADDING*2)):
             data_start[i].lex = &EMPTY_LEXEME
+            data_start[i].l_edge = i
+            data_start[i].r_edge = i
         self.data = data_start + PADDING
         self.max_length = size
         self.length = 0
@@ -219,6 +221,8 @@ cdef class Doc:
             t.idx = 0
         else:
             t.idx = (t-1).idx + (t-1).lex.length + (t-1).spacy
+        t.l_edge = self.length
+        t.r_edge = self.length
         assert t.lex.orth != 0
         t.spacy = has_space
         self.length += 1
@@ -310,6 +314,8 @@ cdef class Doc:
         self.is_parsed = True
         for i in range(self.length):
             self.data[i] = parsed[i]
+            assert self.data[i].l_edge <= i
+            assert self.data[i].r_edge >= i
 
     def from_array(self, attrs, array):
         cdef int i, col
@@ -396,7 +402,7 @@ cdef class Doc:
         cdef TokenC* token = &self.data[start]
         # Update fields
         token.lex = lex
-        token.spacy = self.data[end].spacy
+        token.spacy = self.data[end-1].spacy
         # What to do about morphology??
         # TODO: token.morph = ???
         token.tag = self.vocab.strings[tag]
diff --git a/spacy/vocab.pyx b/spacy/vocab.pyx
index 5307f0fe8..939ea9db3 100644
--- a/spacy/vocab.pyx
+++ b/spacy/vocab.pyx
@@ -117,7 +117,9 @@ cdef class Vocab:
 
     cdef const LexemeC* _new_lexeme(self, Pool mem, unicode string) except NULL:
         cdef hash_t key
-        cdef bint is_oov = mem is not self.mem
+        #cdef bint is_oov = mem is not self.mem
+        # TODO
+        is_oov = False
         mem = self.mem
         if len(string) < 3:
             mem = self.mem
@@ -224,19 +226,17 @@ cdef class Vocab:
             raise IOError('LexemeCs file not found at %s' % loc)
         fp = CFile(loc, 'rb')
         cdef LexemeC* lexeme
-        cdef attr_t orth
         cdef hash_t key
         cdef unicode py_str
-        cdef uint64_t bad_bytes
+        cdef attr_t orth
+        assert sizeof(orth) == sizeof(lexeme.orth)
         i = 0
         while True:
-            lexeme = <LexemeC*>self.mem.alloc(sizeof(LexemeC), 1)
             try:
                 fp.read_into(&orth, 1, sizeof(orth))
             except IOError:
                 break
-            # This 64 bit chunk is there for backwards compatibility. Remove on next release.
-            fp.read_into(&bad_bytes, 1, sizeof(bad_bytes))
+            lexeme = <LexemeC*>self.mem.alloc(sizeof(LexemeC), 1)
             # Copy data from the file into the lexeme
             fp.read_into(&lexeme.flags, 1, sizeof(lexeme.flags))
             fp.read_into(&lexeme.id, 1, sizeof(lexeme.id))
@@ -253,10 +253,8 @@ cdef class Vocab:
             fp.read_into(&lexeme.l2_norm, 1, sizeof(lexeme.l2_norm))
 
             lexeme.repvec = EMPTY_VEC
-            if orth != lexeme.orth:
-                # TODO: Improve this error message, pending resolution to Issue #64
-                raise IOError('Error reading from lexemes.bin. Integrity check fails.')
-            py_str = self.strings[orth]
+            py_str = self.strings[lexeme.orth]
+            assert py_str[-3:] == self.strings[lexeme.suffix], "%s (%d) suffix %s (%d)" % (repr(py_str), lexeme.orth, repr(self.strings[lexeme.suffix]), lexeme.suffix)
             key = hash_string(py_str)
             self._by_hash.set(key, lexeme)
             self._by_orth.set(lexeme.orth, lexeme)
diff --git a/tests/tagger/test_lemmatizer.py b/tests/tagger/test_lemmatizer.py
index 5a6a8fc62..8461a854e 100644
--- a/tests/tagger/test_lemmatizer.py
+++ b/tests/tagger/test_lemmatizer.py
@@ -1,6 +1,6 @@
 from __future__ import unicode_literals
 
-from spacy.en.lemmatizer import Lemmatizer, read_index, read_exc
+from spacy.lemmatizer import Lemmatizer, read_index, read_exc
 from spacy.en import LOCAL_DATA_DIR
 from os import path
 
@@ -23,7 +23,7 @@ def test_read_exc():
 
 @pytest.fixture
 def lemmatizer():
-    return Lemmatizer(path.join(LOCAL_DATA_DIR, 'wordnet'), 0, 0, 0)
+    return Lemmatizer.from_dir(path.join(LOCAL_DATA_DIR))
 
 
 def test_noun_lemmas(lemmatizer):