(S (S (SBAR (IN While) (S (BASENP (DT the) (NN military)) (VP (VP (VBZ has) (RB not)) (VP (ADVP (RB publicly)) (VP (VBN set) (NP (BASENP (DT a) (NN date)) (PP (IN for) (NP (BASENP (DT any) (JJ major) (NN operation)) (PP (IN in) (BASENP (DT the) (NN area))))))))))) (COMMA ,) (S (BASENP (NNP UN) (NNS officials)) (VP (VBP say) (SBAR (S (BASENP (QP (DT some) (NN 80,000)) (NNS civilians)) (VP (VBP have) (VP (VP (VBN fled) (BASENP (DT the) (NN region))) (PP (IN in) (NP (BASENP (NN anticipation)) (PP (IN of) (BASENP (DT a) (JJ new) (JJ offensive)))))))))))) (PERIOD .))