(S (S (BASENP (DT This)) (VP (VBD was) (NP (NP (BASENP (DT the) (JJ 57th) (NN space) (NN walk)) (VP (VBN conducted) (PP (IN at) (BASENP (DT the) (NNP Station))))) (CC and) (NP (BASENP (DT the) (NN 32nd)) (SBAR (S (VP (TO to) (VP (VB be) (VP (VBN based) (PP (IN out) (PP (IN of) (BASENP (DT the) (JJ orbital) (NN outpost))))))))))))) (PERIOD .))