(S (S (S (BASENP (JJ Local) (NN traffic)) (VP (VBZ is) (VP (VBG being) (VP (VBN allowed))))) (COMMA ,) (SBAR (IN since) (S (BASENP (DT this)) (VP (VP (VBZ shuts) (PRT (RP off))) (NP (BASENP (DT a) (JJ 150-mile) (NN stretch)) (PP (IN of) (BASENP (NN highway)))))))) (PERIOD .))