(S (S (NP (BASENP (DT The) (NNP U.S.)) (CC and) (BASENP (NNP South) (NNP Korea))) (VP (MD will) (VP (VB be) (VP (VP (VBG taking) (BASENP (NN part))) (PP (IN in) (NP (DT a) (NP (BASENP (NN one) (NN day)) (COMMA ,) (BASENP (JJ live-fire) (NN exercise)))) (PP (IN on) (NP (BASENP (NNP Yeonpyeong) (NNP Island)) (COMMA ,) (NP (BASENP (DT the) (NN island)) (SBAR (WHNP (WDT which)) (S (VP (VBD was) (VP (VP (VBN shelled) (PP (IN by) (BASENP (JJ North) (JJ Korean) (NN artillery)))) (PP (IN on) (BASENP (NNP November) (NN 23))))))))))))))) (PERIOD .))