Fixed missing argument

Train.py

@@ -62,7 +62,7 @@ def extractExamples(debug, ts, strat, config, dicts, network, dynamic) :
       example = torch.cat([torch.LongTensor([goldIndex]), features])
       examples.append(example)
 
-      moved = applyTransition(ts, strat, config, candidate)
+      moved = applyTransition(ts, strat, config, candidate, None)
   
     EOS.apply(config, strat)