(S (S (PP (IN At) (NP (BASENP (DT a) (NN ceremony)) (PP (IN in) (NP (BASENP (DT the) (NNP White) (NNP House) (POS 's)) (BASENP (NNP Oval) (NNP Office)))))) (COMMA ,) (S (BASENP (NNP Bush)) (VP (VP (VBD praised) (BASENP (DT the) (NN legislation))) (PP (IN as) (NP (BASENP (DT a) (JJ necessary) (NN product)) (PP (IN of) (BASENP (NN bipartisanship)))))))) (PERIOD .))