(S (S (NP (NP (BASENP (NN Docking)) (PP (IN of) (BASENP (DT the) (NN spacecraft)))) (PP (IN with) (BASENP (DT the) (NNP ISS)))) (VP (VBZ is) (VP (VBN expected) (S (VP (TO to) (VP (VB occur) (PP (IN on) (BASENP (NNP Saturday))))))))) (PERIOD .))