(S (S (S (NP (NP (BASENP (NNP Terrace)) (COMMA ,) (BASENP (NNP BC))) (COMMA ,)) (VP (VBD was) (VP (VBN isolated)))) (SBAR (IN as) (S (NP (BASENP (NNS highways)) (ADVP (ADVP (RB north) (CC and) (RB south)) (PP (IN of) (BASENP (DT the) (NN city))))) (VP (VBD were) (VP (VBN closed) (PP (JJ due) (PP (TO to) (NP (BASENP (DT a) (JJ heavy) (NN glaze)) (PP (IN of) (BASENP (NN ice))))))))))) (PERIOD .))