(S (S (NP (NP (NP (BASENP (DT The) (NNS countries)) (PP (IN of) (BASENP (JJ southeast) (NNP Europe)))) (SBAR (WHNP (WP who)) (S (VP (VBP are) (NP (BASENP (NN part)) (PP (IN of) (BASENP (DT the) (NNP Inter-Balkan) (NNP Cooperation)))))))) (COLON ;) (NP (NP (NP (NP (NP (NP (NP (NP (BASENP (NNP Greece)) (COMMA ,) (BASENP (NNP Turkey))) (COMMA ,) (BASENP (NNP Bulgaria))) (COMMA ,) (BASENP (NNP Serbia-Montenegro))) (COMMA ,) (BASENP (NNP Romania))) (COMMA ,) (BASENP (NNP Albania))) (COMMA ,) (BASENP (NNP Croatia))) (COMMA ,) (BASENP (NNP Bosnia))) (CC and) (BASENP (NNP FYROM)))) (VP (MD will) (VP (VB be) (VP (VBN represented) (PP (IN by) (NP (NP (BASENP (PRPD their) (NNS leaders)) (COMMA ,) (BASENP (NNP Prime) (NNS ministers))) (CC and) (NP (BASENP (NNPS Ministers)) (PP (IN of) (BASENP (JJ foreign) (NNS affairs)))))))))) (PERIOD .))