(S (S (NP (NP (BASENP (NNP Space) (NNP Shuttle) (NNP Discovery) (POS 's)) (BASENP (JJ final) (NN launch))) (PP (IN on) (NP (BASENP (DT the) (NNP STS-133) (NN mission)) (PP (TO to) (BASENP (DT the) (NNP International) (NNP Space) (NNP Station)))))) (VP (VBZ has) (VP (VBN been) (VP (VBN delayed) (NP (ADVP (IN at) (JJS least)) (BASENP (DT an) (JJ additional) (NN day))))))) (PERIOD .))