(S (S (NP (NP (BASENP (NNP US) (NNP Secretary)) (PP (IN of) (BASENP (NNP State)))) (BASENP (NNP Condoleezza) (NNP Rice))) (VP (VBZ has) (VP (VBN given) (NP (BASENP (DT an) (NN explanation)) (PP (IN for) (SBAR (WHADVP (WRB why)) (S (BASENP (DT the) (NNP United) (NNPS States)) (VP (VP (VBD abstained)) (CC and) (VP (VP (VBD did) (RB not)) (VP (VB veto) (BASENP (DT the) (NN resolution)))))))))))) (PERIOD .))