(S (S (S (NP (BASENP (DT A) (JJ small) (NN piece)) (PP (IN of) (BASENP (NN foam)))) (VP (VP (VBD broke) (PRT (RP off))) (PP (IN during) (BASENP (DT the) (NN launch))))) (CC but) (S (BASENP (NNP NASA)) (VP (VBZ has) (VP (VBN reported) (SBAR (IN that) (S (BASENP (PRP it)) (VP (VBZ is) (ADJP (JJ unlikely) (S (VP (TO to) (VP (VB cause) (BASENP (NNS problems))))))))))))) (PERIOD .))