(S (S (BASENP (NNP Tamil) (NNPS Tigers)) (VP (VBP are) (VP (VBG claiming) (SBAR (IN that) (S (BASENP (PRP they)) (VP (VP (VP (VBP have) (RB not)) (VP (VBN fled) (BASENP (DT the) (NN area)))) (CONJP (COMMA ,) (CC and)) (VP (VBP are) (VP (VBG continuing) (S (VP (TO to) (VP (VB engage) (BASENP (NN government) (NNS troops))))))))))))) (PERIOD .))