(S (S (PP (IN At) (BASENP (NN one) (NN point))) (COMMA ,) (S (BASENP (DT the) (NN sun)) (VP (VBD was) (VP (VBN blocked) (PP (IN by) (NP (BASENP (DT the) (JJ black) (NN smoke)) (VP (VBG rising) (PP (IN from) (BASENP (DT the) (NN building)))))))))) (PERIOD .))