(S (S (S (PP (IN At) (BASENP (NN 9:00) (NN p.m.))) (COMMA ,) (S (BASENP (NNS firefighters)) (VP (VBD reported) (SBAR (IN that) (S (NP (BASENP (JJS most)) (PP (IN of) (BASENP (DT the) (NN fire)))) (VP (VBD was) (VP (VBN contained) (PP (IN under) (NP (BASENP (DT the) (JJ collapsed) (NNS portions)) (PP (IN of) (BASENP (DT the) (NN building)))))))))))) (CONJP (COMMA ,) (CC but)) (S (BASENP (RB around) (NN 10:00) (NN p.m.)) (S (BASENP (NNS firefighters)) (VP (VBD reported) (SBAR (IN that) (S (BASENP (ADJP (RBR more) (JJ thick)) (JJ black) (NN smoke)) (VP (VBD started) (S (VP (TO to) (VP (VB rise) (PP (IN from) (BASENP (DT the) (NN building))))))))))))) (PERIOD .))