text1: Based on field observations and some discussions with U.S.
feat_premise_binary_parse: ( Based ( on ( ( ( field observations ) and ) ( ( some discussions ) ( with U.S. ) ) ) ) )
feat_premise_parse: (ROOT (PP (VBN Based) (PP (IN on) (NP (NP (NN field) (NNS observations)) (CC and) (NP (NP (DT some) (NNS discussions)) (PP (IN with) (NP (NNP U.S.))))))))
text2: The field observations may have been faulty. 
feat_hypothesis_binary_parse: ( ( The ( field observations ) ) ( ( may ( have ( been faulty ) ) ) . ) )
feat_hypothesis_parse: (ROOT (S (NP (DT The) (NN field) (NNS observations)) (VP (MD may) (VP (VB have) (VP (VBN been) (ADJP (JJ faulty))))) (. .)))