(S (S (PP (IN On) (BASENP (NNP Sunday))) (COMMA ,) (S (BASENP (DT the) (JJ Turkish) (NN military)) (VP (VBD announced) (SBAR (IN that) (S (BASENP (PRPD its) (NN fighter) (NNS jets)) (VP (VBD had) (VP (VP (VBN raided) (NP (NP (BASENP (NN twelve) (NNP PKK) (NNS settlements)) (PP (IN in) (BASENP (NNP Northern) (NNP Iraq)))) (COMMA ,) (SBAR (WHNP (WDT which)) (S (BASENP (DT the) (NNP PKK)) (VP (VBZ uses) (PP (IN as) (NP (BASENP (DT a) (NN base)) (SBAR (S (VP (TO to) (VP (VB launch) (NP (BASENP (NNS attacks)) (PP (IN on) (BASENP (NNP Turkey))))))))))))))) (COMMA ,) (S (VP (VBG raising) (NP (BASENP (NN speculation)) (PP (IN of) (NP (BASENP (NNP PKK) (NN involvement)) (PP (IN in) (BASENP (DT this) (NN attack))))))))))))))) (PERIOD .))