(S (S (S (BASENP (DT The) (NN border)) (VP (VBD was) (VP (VBN closed) (PP (TO to) (BASENP (NN beef) (NNS exports)))))) (SBAR (IN after) (S (NP (BASENP (DT the) (JJ first) (NN incident)) (PP (IN of) (BASENP (NN BSE)))) (VP (VBD was) (VP (VBN reported) (PP (IN in) (BASENP (NNP Canada)))))))) (PERIOD .))