(S (S (NP (BASENP (NN Asteroid) (NNP 2004) (NNP XP14)) (PRN (COMMA ,) (NP (NP (BASENP (DT a) (JJ half-mile) (JJ wide) (NN chunk)) (PP (IN of) (BASENP (JJ hard) (NN rock)))) (VP (VBG traveling) (PP (IN at) (NP (BASENP (NN 40) (NN 000) (NNS miles)) (BASENP (DT an) (NN hour)))))) (COMMA ,))) (VP (MD will) (VP (VP (VP (VB miss) (BASENP (DT the) (NNP Earth))) (PP (IN by) (NP (QP (DT a) (JJ few) (NN hundred) (NN thousand)) (NNS miles)))) (COMMA ,) (BASENP (NNP Monday))))) (PERIOD .))