text1: Though prehistoric remains from the Paleolithic, Neolithic, and Bronze Ages have been unearthed in the Manzanares Valley, prior to Madrid's sudden elevation to capital city in 1561 its history was rather undistinguished.
feat_premise_binary_parse: ( ( Though ( ( ( prehistoric remains ) ( from ( the ( Paleolithic ( , ( Neolithic ( , ( and ( Bronze Ages ) ) ) ) ) ) ) ) ) ( have ( been ( ( unearthed ( ( ( ( in ( the ( Manzanares Valley ) ) ) , ) prior ) ( to ( ( Madrid 's ) ( sudden elevation ) ) ) ) ) ( to ( ( capital city ) ( in 1561 ) ) ) ) ) ) ) ) ( ( its history ) ( ( was ( rather undistinguished ) ) . ) ) )
feat_premise_parse: (ROOT (S (SBAR (IN Though) (S (NP (NP (JJ prehistoric) (NNS remains)) (PP (IN from) (NP (DT the) (NNP Paleolithic) (, ,) (NNP Neolithic) (, ,) (CC and) (NN Bronze) (NNS Ages)))) (VP (VBP have) (VP (VBN been) (VP (VBN unearthed) (PP (PP (IN in) (NP (DT the) (NNP Manzanares) (NNP Valley))) (, ,) (RB prior) (PP (TO to) (NP (NP (NNP Madrid) (POS 's)) (JJ sudden) (NN elevation)))) (PP (TO to) (NP (NP (NN capital) (NN city)) (PP (IN in) (NP (CD 1561)))))))))) (NP (PRP$ its) (NN history)) (VP (VBD was) (ADJP (RB rather) (JJ undistinguished))) (. .)))
text2: There were remains in the Manzanares Valley.
feat_hypothesis_binary_parse: ( There ( ( were ( remains ( in ( the ( Manzanares Valley ) ) ) ) ) . ) )
feat_hypothesis_parse: (ROOT (S (NP (EX There)) (VP (VBD were) (NP (NP (NNS remains)) (PP (IN in) (NP (DT the) (NNP Manzanares) (NNP Valley))))) (. .)))