diff --git a/bin/init_model.py b/bin/init_model.py
index 5e62a7faf..4d7611cce 100644
--- a/bin/init_model.py
+++ b/bin/init_model.py
@@ -98,7 +98,7 @@ def _read_probs(loc):
     return probs, probs['-OOV-']
 
 
-def _read_freqs(loc, max_length=100, min_doc_freq=0, min_freq=200):
+def _read_freqs(loc, max_length=100, min_doc_freq=5, min_freq=200):
     if not loc.exists():
         print("Warning: Frequencies file not found")
         return {}, 0.0
@@ -125,8 +125,7 @@ def _read_freqs(loc, max_length=100, min_doc_freq=0, min_freq=200):
         doc_freq = int(doc_freq)
         freq = int(freq)
         if doc_freq >= min_doc_freq and freq >= min_freq and len(key) < max_length:
-#            word = literal_eval(key)
-            word = key
+            word = literal_eval(key)
             smooth_count = counts.smoother(int(freq))
             log_smooth_count = math.log(smooth_count)
             probs[word] = math.log(smooth_count) - log_total
@@ -166,7 +165,7 @@ def setup_vocab(get_lex_attr, tag_map, src_dir, dst_dir):
     clusters = _read_clusters(src_dir / 'clusters.txt')
     probs, oov_prob = _read_probs(src_dir / 'words.sgt.prob')
     if not probs:
-        probs, oov_prob = _read_freqs(src_dir / 'freqs.txt')
+        probs, oov_prob = _read_freqs(src_dir / 'freqs.txt.gz')
     if not probs:
         oov_prob = -20
     else:
diff --git a/spacy/tokens/token.pyx b/spacy/tokens/token.pyx
index 17d756b3e..68ce2ffb5 100644
--- a/spacy/tokens/token.pyx
+++ b/spacy/tokens/token.pyx
@@ -179,23 +179,11 @@ cdef class Token:
 
     property n_lefts:
         def __get__(self):
-            cdef int n = 0
-            cdef const TokenC* ptr = self.c - self.i
-            while ptr != self.c:
-                if ptr + ptr.head == self.c:
-                    n += 1
-                ptr += 1
-            return n
+            return self.c.l_kids
 
     property n_rights:
         def __get__(self):
-            cdef int n = 0
-            cdef const TokenC* ptr = self.c + (self.array_len - self.i)
-            while ptr != self.c:
-                if ptr + ptr.head == self.c:
-                    n += 1
-                ptr -= 1
-            return n
+            return self.c.r_kids
 
     property lefts:
         def __get__(self):