(S (S (PP (IN On) (NP (BASENP (DT the) (NNP Traffic) (NNP England) (NN site)) (VP (VBN run) (PP (IN by) (BASENP (DT the) (NNP Highways) (NNP Agency)))))) (COMMA ,) (S (BASENP (NNP London)) (VP (VBZ has) (VP (VBN been) (VP (VBN marked) (PP (IN as) (NP (DT a) (QT (DQL `) (BASENP (JJ Closed) (NN area)) (DQR '))))))))) (PERIOD .))