(S (S (BASENP (NNP NASA)) (VP (VP (MD will) (VP (VB be) (VP (VP (VBG retiring) (NP (BASENP (PRPD their) (NN fleet)) (PP (IN of) (BASENP (NNP Columbia) (NNP Class) (NNP Space) (NNPS Shuttles))))) (PP (IN in) (BASENP (NN 2010)))))) (CONJP (COMMA ,) (CC but)) (VP (VP (MD will) (RB not)) (VP (VP (VB have) (S (NP (NP (BASENP (DT the) (NNPS Shuttles) (POS ')) (NNS replacements)) (PRN (LRB -LRB-) (NP (DT the) (NP (NP (BASENP (NNP Ares) (NNP I)) (CC and) (BASENP (NNP Ares) (NNP V))) (NNS rockets))) (RRB -RRB-))) (ADJP (JJ ready)))) (PP (IN until) (NP (ADVP (IN at) (JJS least)) (NN 2014))))))) (PERIOD .))