(S (S (BASENP (RBR Earlier) (DT this) (NN month)) (COMMA ,) (S (NP (BASENP (DT an) (NN attack)) (VP (VBN aimed) (PP (IN at) (BASENP (DT the) (JJ powerful) (NNPS Inter-Services) (NNP Intelligence))))) (VP (VBD killed) (BASENP (NN 25) (NNS people))))) (PERIOD .))