(S (S (NP (EX There)) (VP (VBZ has) (VP (VP (VP (VBN been) (NP (BASENP (DT a) (NN lot)) (PP (IN of) (BASENP (NN speculation))))) (PP (IN in) (BASENP (DT the) (JJ past) (NNS months)))) (SBAR (IN that) (S (BASENP (NNP Lieberman)) (VP (MD would) (VP (VB speak) (PP (IN at) (BASENP (DT the) (NN convention)))))))))) (PERIOD .))