(S (S (BASENP (PRP It)) (VP (VP (VP (VBZ is) (RB not)) (VBN known)) (SBAR (WHNP (WP what)) (S (NP (BASENP (DT the) (NN effect)) (PP (IN of) (BASENP (DT the) (NNP ACS) (NN failure)))) (VP (MD will) (VP (VB have) (PP (IN on) (BASENP (DT the) (VBN scheduled) (NN mission))))))))) (PERIOD .))