(S (S (BASENP (NN Expedition) (NN 10)) (VP (VBZ is) (VP (VBN scheduled) (S (VP (TO to) (VP (VP (VB conduct) (BASENP (PRPD its) (JJ second) (NN spacewalk))) (PP (IN in) (BASENP (NNP March))))))))) (PERIOD .))