diff --git a/spacy/syntax/_parse_features.pyx b/spacy/syntax/_parse_features.pyx
index 64c35614a..c8ca59c36 100644
--- a/spacy/syntax/_parse_features.pyx
+++ b/spacy/syntax/_parse_features.pyx
@@ -88,22 +88,22 @@ cdef int fill_context(atom_t* context, State* state) except -1:
 
 unigrams = (
     (S2W, S2p),
-    (S2p,),
-    (S2c,),
+    #(S2p,),
+    #(S2c,),
     (S2c6, S2p),
-    (S2L,),
+    #(S2L,),
     
     (S1W, S1p),
-    (S1p,),
-    (S1c,),
+    #(S1p,),
+    #(S1c,),
     (S1c6, S1p),
-    (S1L,),
+    #(S1L,),
 
     (S0W, S0p),
-    (S0p,),
-    (S0c,),
+    #(S0p,),
+    #(S0c,),
     (S0c6, S0p),
-    (S0L,),
+    #(S0L,),
  
     (N0W, N0p),
     (N0p,),
@@ -112,48 +112,48 @@ unigrams = (
     (N0L,),
  
     (N1W, N1p),
-    (N1p,),
-    (N1c,),
+    #(N1p,),
+    #(N1c,),
     (N1c6, N1p),
  
     (N2W, N2p),
-    (N2p,),
-    (N2c,),
+    #(N2p,),
+    #(N2c,),
     (N2c6, N2p),
 
     (S0r2W, S0r2p),
-    (S0r2p,),
-    (S0r2c,),
+    #(S0r2p,),
+    #(S0r2c,),
     (S0r2c6, S0r2p),
     (S0r2L,),
 
     (S0rW, S0rp),
-    (S0rp,),
-    (S0rc,),
+    #(S0rp,),
+    #(S0rc,),
     (S0rc6, S0rp),
     (S0rL,),
 
     (S0l2W, S0l2p),
-    (S0l2p,),
-    (S0l2c,),
+    #(S0l2p,),
+    #(S0l2c,),
     (S0l2c6, S0l2p),
     (S0l2L,),
 
     (S0lW, S0lp),
-    (S0lp,),
-    (S0lc,),
+    #(S0lp,),
+    #(S0lc,),
     (S0lc6, S0lp),
     (S0lL,),
 
     (N0l2W, N0l2p),
-    (N0l2p,),
-    (N0l2c,),
+    #(N0l2p,),
+    #(N0l2c,),
     (N0l2c6, N0l2p),
     (N0l2L,),
 
     (N0lW, N0lp),
-    (N0lp,),
-    (N0lc,),
+    #(N0lp,),
+    #(N0lc,),
     (N0lc6, N0lp),
     (N0lL,),
 )