(S (S (BASENP (PRP He)) (VP (VP (VBZ has) (VP (VP (VP (VBN served) (PP (IN in) (BASENP (DT the) (NNP United) (NNPS States) (NNP Senate)))) (ADVP (RB continuously))) (PP (IN since) (BASENP (NN 1991))))) (CONJP (COMMA ,) (CC and)) (VP (VP (VBD was) (BASENP (DT a) (NNP United) (NNPS States) (NNP Representative))) (PP (PP (IN from) (BASENP (NN 1981))) (PP (TO to) (BASENP (NN 1991))))))) (PERIOD .))