text1: I'm busy now.
feat_premise_binary_parse: ( I ( ( ( 'm busy ) now ) . ) )
feat_premise_parse: (ROOT (S (NP (PRP I)) (VP (VBP 'm) (ADJP (JJ busy)) (ADVP (RB now))) (. .)))
text2: I'm not free right now.
feat_hypothesis_binary_parse: ( I ( ( ( ( 'm not ) free ) ( right now ) ) . ) )
feat_hypothesis_parse: (ROOT (S (NP (PRP I)) (VP (VBP 'm) (RB not) (ADJP (JJ free)) (ADVP (RB right) (RB now))) (. .)))