(S (S (BASENP (NNP Shuttle) (NNP Discovery)) (VP (VBZ is) (VP (ADVP (RB presently)) (VP (VP (VBN docked) (PP (TO to) (BASENP (DT the) (NNP ISS)))) (PP (IN during) (BASENP (NN mission) (NNP STS-120))))))) (PERIOD .))