(S (S (S (BASENP (NNP United) (NNPS States) (NNS skiers)) (VP (VBD were) (VP (VBN scheduled) (S (VP (TO to) (VP (VP (VB compete) (BASENP (NN yesterday))) (PP (IN in) (BASENP (DT the) (NNP Slalom) (NN discipline))))))))) (CC but) (S (BASENP (DT the) (NN competition)) (VP (VBD was) (VP (VBN canceled) (PP (JJ due) (PP (TO to) (BASENP (JJ high) (NNS winds)))))))) (PERIOD .))