fixed issue with head checking
removed XMIs
updated gitignore
Updated SimpleQuestionRunCPE and SimpleRunCPE to print out Average C@1
in AnswerSelectionByKCandVoting
Annotated XMI files containing further improved Noun Phrase and Verb
Phrase.
improve PMI by using background corpus
Update README.md
Merge branch 'master' into synonym
modify pipeline for synonym match
fix bugs in synonym indexing