(S (S (S (NP (NP (NP (BASENP (NNP United) (NNPS States)) (PRN (LRB -LRB-) (BASENP (NNP U.S.)) (RRB -RRB-))) (NNP Senator)) (BASENP (NNP Joe) (NNP Lieberman))) (VP (VBZ is) (VP (VBN scheduled) (S (VP (TO to) (VP (VB speak) (PP (IN at) (BASENP (DT the) (JJ Republican) (NN party) (NN convention))))))))) (COMMA ,) (PP (VBG according) (PP (TO to) (NP (NP (BASENP (DT a) (NN member)) (PP (IN of) (BASENP (DT the) (NNP McCain) (NN campaign)))) (SBAR (WHNP (WP who)) (S (VP (VBZ wishes) (S (VP (TO to) (VP (VB remain) (ADJP (JJ anonymous)))))))))))) (PERIOD .))