text1: We've got to think.
feat_premise_binary_parse: ( We ( ( 've ( got ( to think ) ) ) . ) )
feat_premise_parse: (ROOT (S (NP (PRP We)) (VP (VBP 've) (VP (VBN got) (S (VP (TO to) (VP (VB think)))))) (. .)))
text2: We don't need to think.
feat_hypothesis_binary_parse: ( We ( ( ( do n't ) ( need ( to think ) ) ) . ) )
feat_hypothesis_parse: (ROOT (S (NP (PRP We)) (VP (VBP do) (RB n't) (VP (VB need) (S (VP (TO to) (VP (VB think)))))) (. .)))