(S (S (BASENP (JJ Venezuelan) (NNP President) (NNP Hugo) (NNP Chavez)) (VP (VBD stated) (SBAR (S (BASENP (DT the) (NNP U.S.) (NN government)) (VP (MD may) (VP (VB have) (VP (VBN planned) (NP (DT the) (NP (NP (BASENP (NNP September) (NN 11)) (COMMA ,) (BASENP (NN 2001))) (NNS attacks)))))))))) (PERIOD .))