(S (S (BASENP (DT The) (NNP Bahrain) (NNP Interior) (NNP Ministry)) (VP (VBZ is) (S (VP (TO to) (VP (VP (VB investigate) (BASENP (DT the) (NN accident))) (CC and) (VP (VB establish) (SBAR (IN if) (S (BASENP (DT the) (NN boat)) (VP (VBZ was) (ADJP (JJ seaworthy))))))))))) (PERIOD .))