(S (S (BASENP (NNP Osman)) (VP (VBZ is) (VP (VBN accused) (PP (IN of) (S (VP (VP (VBG planting) (BASENP (DT the) (JJ failed) (NN bomb))) (PP (IN at) (NP (BASENP (NNP Shepherd) (POS 's)) (BASENP (NNP Bush) (NNP Underground) (NN station)))))))))) (PERIOD .))