(S (S (S (BASENP (DT The) (NNP U.S.) (NNP Government)) (VP (VBZ has) (VP (VP (VBN named) (BASENP (NNP BP))) (PP (IN as) (BASENP (DT the) (JJ responsible) (NN party)))))) (CONJP (COMMA ,) (CC and)) (S (BASENP (NNS officials)) (VP (VBP have) (VP (VBN committed) (PP (TO to) (S (VP (VBG holding) (S (BASENP (DT the) (NN company)) (ADJP (JJ accountable) (PP (IN for) (NP (DT all) (NP (BASENP (NN cleanup) (NNS costs)) (CC and) (BASENP (JJ other) (NN damage)))))))))))))) (PERIOD .))