(S (S (BASENP (NNP North) (NNP Korea)) (VP (VBD had) (VP (ADVP (RBR earlier)) (VP (VP (VBN boycotted) (BASENP (DT the) (NNS talks))) (PP (IN in) (NP (BASENP (NN response)) (PP (TO to) (NP (NP (BASENP (DT a) (NN sanction)) (VP (VBN placed) (PP (IN by) (BASENP (DT the) (NNP US))))) (PP (IN on) (NP (NP (BASENP (NN one)) (PP (IN of) (BASENP (PRPD its) (NNS banks)))) (COMMA ,) (VP (VBN believed) (S (VP (TO to) (S (VP (VBN linked) (PP (TO to) (NP (BASENP (DT the) (NN regime)) (PP (IN of) (BASENP (NNP Kim) (NNP Jong-Il)))))))))))))))))))) (PERIOD .))