(S (S (BASENP (NNS Police)) (VP (VP (VBD closed) (NP (BASENP (JJ several) (NNS streets)) (PP (IN near) (BASENP (DT the) (NNP CNN) (NNP Center))))) (PP (IN because) (PP (IN of) (NP (BASENP (DT the) (NN debris)) (COMMA ,) (SBAR (WHNP (WDT which)) (S (VP (VBD included) (NP (NP (BASENP (NN power) (NNS lines)) (COMMA ,) (BASENP (NNS billboards))) (CONJP (COMMA ,) (CC and)) (NP (ADVP (RB even)) (BASENP (NN office) (NNS chairs)))))))))))) (PERIOD .))