(S (S (BASENP (JJ Federal) (NNS prosecutors)) (VP (VBP plan) (S (VP (TO to) (VP (VP (VB use) (BASENP (DT the) (NN confession))) (S (VP (TO to) (VP (VB establish) (SBAR (IN that) (S (BASENP (NNP Mr.) (NNP Libby)) (VP (VBD was) (NP (BASENP (NN part)) (PP (IN of) (NP (NP (BASENP (DT the) (NNP Bush) (NN administration) (POS 's)) (BASENP (JJ public) (NNS relations) (NN campaign))) (SBAR (S (VP (TO to) (VP (VB rebut) (NP (NP (BASENP (NNP Mr.) (NNP Wilson) (POS 's)) (BASENP (NN op-ed) (NN column))) (PP (IN in) (BASENP (NNP The) (NNP New) (NNP York) (NNPS Times)))))))))))))))))))))) (PERIOD .))