(S (S (PP (VBG According) (PP (TO to) (BASENP (DT the) (NNP U.S.) (NNP State) (NNP Department)))) (COMMA ,) (S (BASENP (DT the) (NNS exercises)) (VP (VP (VBP are) (NP (BASENP (NN part)) (PP (IN of) (NP (BASENP (JJ regular) (NNS drills)) (PP (IN between) (NP (BASENP (DT the) (NNP U.S.)) (CC and) (BASENP (NNP South) (NNP Korea)))))))) (CC and) (VP (VP (VBP are) (RB not)) (ADJP (JJ provocative)))))) (PERIOD .))