text1: Arawak peoples migrated to various Caribbean islands, arriving in Jamaica by the beginning of the eighth century.
feat_premise_binary_parse: ( ( Arawak peoples ) ( ( ( ( migrated ( to ( various ( Caribbean islands ) ) ) ) , ) ( ( arriving ( in Jamaica ) ) ( by ( ( the beginning ) ( of ( the ( eighth century ) ) ) ) ) ) ) . ) )
feat_premise_parse: (ROOT (S (NP (NN Arawak) (NNS peoples)) (VP (VBD migrated) (PP (TO to) (NP (JJ various) (JJ Caribbean) (NNS islands))) (, ,) (S (VP (VBG arriving) (PP (IN in) (NP (NNP Jamaica))) (PP (IN by) (NP (NP (DT the) (NN beginning)) (PP (IN of) (NP (DT the) (JJ eighth) (NN century)))))))) (. .)))
text2: While they visited the islands, they never visited Jamaica.
feat_hypothesis_binary_parse: ( ( While ( they ( visited ( the islands ) ) ) ) ( , ( they ( never ( ( visited Jamaica ) . ) ) ) ) )
feat_hypothesis_parse: (ROOT (S (SBAR (IN While) (S (NP (PRP they)) (VP (VBD visited) (NP (DT the) (NNS islands))))) (, ,) (NP (PRP they)) (ADVP (RB never)) (VP (VBD visited) (NP (NNP Jamaica))) (. .)))