(S (S (BASENP (DT The) (NN trio)) (VP (VBD were) (VP (VP (VP (VBG waiting) (PRT (RP out))) (BASENP (DT a) (NN storm))) (PP (IN before) (S (VP (VBG boarding) (NP (NP (BASENP (DT a) (NN flight)) (PP (TO to) (BASENP (NNP Chile)))) (PP (IN for) (BASENP (NNP Ottawa)))))))))) (PERIOD .))