text1: Nobody knows much about the early Etruscans.
feat_premise_binary_parse: ( Nobody ( ( knows ( much ( about ( the ( early Etruscans ) ) ) ) ) . ) )
feat_premise_parse: (ROOT (S (NP (NN Nobody)) (VP (VBZ knows) (ADVP (RB much) (NP (RB about) (DT the) (JJ early) (NNS Etruscans)))) (. .)))
text2: There is no proof that early Etruscans ever existed.
feat_hypothesis_binary_parse: ( There ( ( ( is ( no proof ) ) ( that ( ( early Etruscans ) ( ever existed ) ) ) ) . ) )
feat_hypothesis_parse: (ROOT (S (NP (EX There)) (VP (VBZ is) (NP (DT no) (NN proof)) (SBAR (IN that) (S (NP (JJ early) (NNS Etruscans)) (ADVP (RB ever)) (VP (VBD existed))))) (. .)))