(S (S (PP (IN On) (NP (BASENP (DT the) (NNS sidelines)) (PP (IN of) (NP (BASENP (DT the) (NNP Inter-Balkan) (NNP Cooperation) (NNP Summit)) (COMMA ,) (SBAR (WHNP (WDT which)) (S (VP (MD will) (VP (VP (VB take) (BASENP (NN place))) (PP (IN at) (NP (BASENP (DT the) (NNP Hyatt) (NNP Regency) (NNP Hotel)) (PP (IN of) (BASENP (NNP Thessaloniki))))))))))))) (COMMA ,) (S (S (BASENP (NNP Greek) (NNP Premier) (NNP Kostas) (NNP Caramanlis)) (VP (MD will) (VP (VP (VB meet) (PP (IN with) (BASENP (PRPD his) (JJ Turkish) (NN counterpart) (NNP Recep) (NNP Tayyip) (NNP Erdogan)))) (PP (IN on) (BASENP (NNP Thursday)))))) (SBAR (SBAR (IN in) (NN order)) (S (VP (TO to) (VP (VB discuss) (NP (BASENP (JJ bilateral) (NNS issues)) (COMMA ,) (PP (VBG including) (BASENP (DT the) (NNP Cyprus) (NN problem)))))))))) (PERIOD .))