(S (S (PP (IN In) (BASENP (DT the) (NN interim))) (COMMA ,) (S (S (NP (BASENP (DT the) (NNS crew)) (PP (IN of) (BASENP (DT the) (NN shuttle)))) (VP (MD will) (VP (VB stay) (PP (IN at) (BASENP (NNP KSC)))))) (SBAR (IN unless) (S (S (NP (EX there)) (VP (VBP are) (BASENP (JJ further) (NNS delays)))) (COMMA ,) (SBAR (WHPP (IN in) (WHNP (WDT which) (NN case))) (S (BASENP (DT the) (NN crew)) (VP (MD might) (VP (VB be) (VP (VP (VBN transported) (ADVP (RB back) (PP (TO to) (NP (BASENP (NNP JSC)) (PP (IN in) (BASENP (NNP Houston))))))) (PP (IN for) (BASENP (NN refresher) (NN training)))))))))))) (PERIOD .))