(S (S (BASENP (DT The) (NNS explosions)) (VP (VP (VBD sent) (BASENP (JJ flaming) (NN debris))) (PP (PP (IN into) (BASENP (DT the) (NN air))) (CC and) (PP (IN onto) (BASENP (NNS buildings) (CC and) (NNS expressways)))))) (PERIOD .))