(S (S (NP (BASENP (JJ British) (NN author) (NNP James) (NNP Graham) (NNP Ballard)) (COMMA ,) (VP (VBN known) (PP (IN as) (BASENP (NNP J.) (NNP G.) (NNP Ballard))))) (VP (VBZ has) (VP (VBN died) (PP (IN at) (NP (BASENP (DT the) (NN age)) (PP (IN of) (BASENP (NN 78)))))))) (PERIOD .))