text1: These alone could have valuable uses.
feat_premise_binary_parse: ( These ( alone ( ( could ( have ( valuable uses ) ) ) . ) ) )
feat_premise_parse: (ROOT (S (NP (DT These)) (ADVP (RB alone)) (VP (MD could) (VP (VB have) (NP (JJ valuable) (NNS uses)))) (. .)))
text2: These by themselves could prove valueable. 
feat_hypothesis_binary_parse: ( ( These ( by themselves ) ) ( ( could ( prove valueable ) ) . ) )
feat_hypothesis_parse: (ROOT (S (NP (NP (DT These)) (PP (IN by) (NP (PRP themselves)))) (VP (MD could) (VP (VB prove) (NP (NN valueable)))) (. .)))