(S (S (BASENP (DT The) (NN mission)) (VP (VBZ is) (NP (NP (BASENP (DT the) (NN 133rd)) (PP (IN of) (BASENP (DT the) (NNP Space) (NNP Shuttle) (NNP Program)))) (CC and) (NP (BASENP (DT the) (NN 39th)) (PP (IN of) (BASENP (NNP Discovery))))))) (PERIOD .))