(S (S (NP (NP (NP (BASENP (NNP Djibouti) (POS 's)) (NN ambassador)) (PP (TO to) (BASENP (DT the) (NNP UN)))) (PRN (COMMA ,) (BASENP (NNP Roble) (NNP Olhaye)) (COMMA ,))) (VP (VBZ has) (VP (VP (VBN accused) (BASENP (NNP Eritrea))) (PP (IN of) (S (VP (VBG avoiding) (NP (BASENP (NN mediation)) (PP (IN on) (BASENP (DT the) (NN problem)))))))))) (PERIOD .))