text1: Hall said that Britain has enjoyed a half-century of pre-eminence in this field of endeavor and that this could now be destroyed.
feat_premise_binary_parse: ( Hall ( ( said ( ( ( that ( Britain ( has ( ( enjoyed ( ( a half-century ) ( of pre-eminence ) ) ) ( in ( ( this field ) ( of endeavor ) ) ) ) ) ) ) and ) ( that ( this ( ( could now ) ( be destroyed ) ) ) ) ) ) . ) )
feat_premise_parse: (ROOT (S (NP (NNP Hall)) (VP (VBD said) (SBAR (SBAR (IN that) (S (NP (NNP Britain)) (VP (VBZ has) (VP (VBN enjoyed) (NP (NP (DT a) (NN half-century)) (PP (IN of) (NP (NN pre-eminence)))) (PP (IN in) (NP (NP (DT this) (NN field)) (PP (IN of) (NP (NN endeavor))))))))) (CC and) (SBAR (IN that) (S (NP (DT this)) (VP (MD could) (ADVP (RB now)) (VP (VB be) (VP (VBN destroyed)))))))) (. .)))
text2: Britain could lose its place at the top of this field of endeavor.
feat_hypothesis_binary_parse: ( Britain ( ( could ( ( lose ( its place ) ) ( at ( ( the top ) ( of ( ( this field ) ( of endeavor ) ) ) ) ) ) ) . ) )
feat_hypothesis_parse: (ROOT (S (NP (NNP Britain)) (VP (MD could) (VP (VB lose) (NP (PRP$ its) (NN place)) (PP (IN at) (NP (NP (DT the) (NN top)) (PP (IN of) (NP (NP (DT this) (NN field)) (PP (IN of) (NP (NN endeavor))))))))) (. .)))