text1: The Kal nodded.
feat_premise_binary_parse: ( ( The Kal ) ( nodded . ) )
feat_premise_parse: (ROOT (S (NP (DT The) (NNP Kal)) (VP (VBD nodded)) (. .)))
text2: The Kal then nodded its head up and down.
feat_hypothesis_binary_parse: ( ( The Kal ) ( then ( ( ( nodded ( its head ) ) ( ( up and ) down ) ) . ) ) )
feat_hypothesis_parse: (ROOT (S (NP (DT The) (NNP Kal)) (ADVP (RB then)) (VP (VBD nodded) (NP (PRP$ its) (NN head)) (ADVP (RB up) (CC and) (RB down))) (. .)))