(S (S (BASENP (PRPD Their) (NNS reasons)) (VP (VBP include) (S (VP (VP (VBG keeping) (NP (BASENP (DT the) (NN country) (POS 's)) (NN seat))) (PP (IN at) (NP (BASENP (DT the) (JJ top) (NN table)) (PP (IN of) (BASENP (JJ international) (NNS politics))))))))) (PERIOD .))