text1: Lydians and Persians
feat_premise_binary_parse: ( ( Lydians and ) Persians )
feat_premise_parse: (ROOT (NP (NNPS Lydians) (CC and) (NNPS Persians)))
text2: Lydians and Persians were friendly nations.
feat_hypothesis_binary_parse: ( ( ( Lydians and ) Persians ) ( ( were ( friendly nations ) ) . ) )
feat_hypothesis_parse: (ROOT (S (NP (NNS Lydians) (CC and) (NNS Persians)) (VP (VBD were) (NP (JJ friendly) (NNS nations))) (. .)))