text1: They are built on the site of David's Tower, once the largest and most formidable structure in the castle.
feat_premise_binary_parse: ( They ( ( are ( built ( on ( ( the site ) ( of ( ( ( ( ( David 's ) Tower ) , ) once ) ( ( the ( ( ( largest and ) most ) ( formidable structure ) ) ) ( in ( the castle ) ) ) ) ) ) ) ) ) . ) )
feat_premise_parse: (ROOT (S (NP (PRP They)) (VP (VBP are) (VP (VBN built) (PP (IN on) (NP (NP (DT the) (NN site)) (PP (IN of) (NP (NP (NP (NNP David) (POS 's)) (NNP Tower)) (, ,) (ADVP (RB once)) (NP (NP (DT the) (ADJP (JJS largest) (CC and) (JJS most)) (JJ formidable) (NN structure)) (PP (IN in) (NP (DT the) (NN castle)))))))))) (. .)))
text2: The structures are on the site of David's Tower.
feat_hypothesis_binary_parse: ( ( The structures ) ( ( are ( on ( ( the site ) ( of ( ( David 's ) Tower ) ) ) ) ) . ) )
feat_hypothesis_parse: (ROOT (S (NP (DT The) (NNS structures)) (VP (VBP are) (PP (IN on) (NP (NP (DT the) (NN site)) (PP (IN of) (NP (NP (NNP David) (POS 's)) (NNP Tower)))))) (. .)))