(S (S (S (BASENP (DT The) (NN two) (NNS countries)) (VP (VP (BASENP (DT both)) (VP (VBP border) (BASENP (DT the) (NNP Russian) (NNP Federation)))) (CONJP (COMMA ,) (CC and)) (VP (VBP have) (VP (VBN been) (VP (VP (VP (VBG trying) (S (VP (TO to) (VP (VB sign) (BASENP (JJ definitive) (NN border) (NNS treaties)))))) (PP (IN for) (BASENP (DT a) (JJ long) (NN time)))) (PP (IN since) (BASENP (NN independence)))))))) (CONJP (COMMA ,) (CC but)) (S (BASENP (NNP Moscow)) (VP (VBZ has) (VP (ADVP (RB repeatedly)) (VP (VBN delayed) (PP (IN on) (S (VP (VBG signing))))))))) (PERIOD .))