text1: Some bugs are hell to track down.
feat_premise_binary_parse: ( ( Some bugs ) ( ( are ( hell ( to ( track down ) ) ) ) . ) )
feat_premise_parse: (ROOT (S (NP (DT Some) (NNS bugs)) (VP (VBP are) (ADJP (JJ hell) (S (VP (TO to) (VP (VB track) (PRT (RP down))))))) (. .)))
text2: It is difficult to catch some bugs.
feat_hypothesis_binary_parse: ( It ( ( is ( difficult ( to ( catch ( some bugs ) ) ) ) ) . ) )
feat_hypothesis_parse: (ROOT (S (NP (PRP It)) (VP (VBZ is) (ADJP (JJ difficult) (S (VP (TO to) (VP (VB catch) (NP (DT some) (NNS bugs))))))) (. .)))