text1: Through Responsive and Naturalistic Approaches.
feat_premise_binary_parse: ( ( Through ( Responsive ( and ( Naturalistic Approaches ) ) ) ) . )
feat_premise_parse: (ROOT (FRAG (PP (IN Through) (NP (NNP Responsive) (CC and) (NNP Naturalistic) (NNPS Approaches))) (. .)))
text2: Natural approaches are key 
feat_hypothesis_binary_parse: ( ( Natural approaches ) ( are key ) )
feat_hypothesis_parse: (ROOT (S (NP (JJ Natural) (NNS approaches)) (VP (VBP are) (ADJP (JJ key)))))