(S (S (ADVP (RB However)) (COMMA ,) (S (BASENP (DT this) (NN proposal)) (VP (VBZ has) (VP (VBN been) (VP (VBN discarded) (PP (IN by) (NP (BASENP (NN many)) (PP (IN of) (BASENP (NNP Wall) (NNP Street) (NNS banks)))))))))) (PERIOD .))