(S (S (S (BASENP (NNP Interstate) (NN 80)) (VP (VBZ is) (VP (VP (VBN closed) (PP (IN between) (BASENP (NN mile) (NNS markers) (NN 266) (CC and) (NN 267)))) (COMMA ,) (PP (IN with) (S (BASENP (DT a) (JJ 281-mile) (JJ long) (NN detour)) (SBAR (S (VP (TO to) (VP (VB get) (PP (IN around) (BASENP (PRP it)))))))))))) (COLON :) (S (BASENP (JJ Eastbound) (JJ through) (NN traffic)) (VP (MD must) (VP (VP (VP (VB leave) (BASENP (NNP I-80))) (PP (IN at) (BASENP (NNP Des) (NNP Moines)))) (CC and) (VP (VP (VP (VB travel) (ADVP (RB north))) (PP (IN along) (BASENP (NNP Interstate) (NN 35)))) (VP (VP (VP (ADVP (RB then)) (VP (VP (VP (ADVP (RB east))) (PP (TO to) (BASENP (NNP Dubuque)))) (PP (IN via) (BASENP (NNP U.S.) (NNP Route) (NN 20))))) (COMMA ,) (SBAR (WHADVP (WRB where)) (S (BASENP (PRP it)) (VP (MD can) (VP (VP (VP (VB move) (ADVP (RB south))) (PP (IN along) (BASENP (NNP U.S.) (NNP Route) (NN 61)))) (S (VP (TO to) (VP (VB return) (PP (TO to) (NP (BASENP (NNP Interstate) (NN 80)) (PP (IN at) (BASENP (DT the) (NNP Quad) (NNP Cities))))))))))))) (COMMA ,) (PP (IN with) (S (BASENP (JJ westbound) (JJ through) (NN traffic)) (VP (VBG following) (BASENP (DT the) (JJ opposite) (NN route))))))))))) (PERIOD .))