nlp: undo changes to sentence.contains by alex and brian till it is fixed
nlp: undo changes to sentence.contains by alex and brian till it is fixed

joprice/factorie,zxsted/factorie,digitalreasoning/factorie-scala-210,malcolmgreaves/factorie,pogren-oracle/factorie,asubbaswamy/factorie,melisabok/factorie,factorie/factorie,patverga/factorie,Craigacp/factorie,strubell/factorie,hlin117/factorie