(S (S (BASENP (NNS Officials)) (VP (VBD said) (SBAR (S (BASENP (PRP they)) (VP (VP (VBP suspect) (BASENP (NNP Taliban) (NNS militants))) (PP (IN for) (S (VP (VBG being) (ADJP (JJ responsible) (PP (IN for) (BASENP (DT the) (NNS attacks)))))))))))) (PERIOD .))