(S (S (QT (DQL ``) (S (BASENP (PRP I)) (VP (VBD saw) (UCP (S (BASENP (JJ black) (NN smoke)) (VP (VBG rising))) (CC and) (NP (BASENP (DT the) (NN sound)) (PP (IN of) (S (BASENP (DT a) (NN building)) (VP (VBG crashing) (PRT (RP down))))))))) (DQR ''))) (PERIOD .))