(S (BASENP (PRP He)) (VP (VBD said) (COMMA ,) (QT (DQL ``) (QTC (S (BASENP (PRP we)) (VP (VBP have) (VP (VP (VBN said) (PP (IN from) (BASENP (DT the) (NN beginning)))) (SBAR (IN that) (S (NP (BASENP (DT the) (NN explosion)) (PP (IN on) (BASENP (DT the) (NNP Deepwater) (NNP Horizon)))) (VP (VBD was) (NP (BASENP (DT a) (JJ shared) (NN responsibility)) (PP (IN among) (BASENP (JJ many) (NNS entities)))))))))) (PERIOD .)) (DQR ''))))