(S (S (S (NP (BASENP (NNS Relations)) (PP (IN between) (BASENP (DT the) (NN two) (NNS countries)))) (VP (VBD had) (VP (ADVP (RB previously)) (VP (VBN been) (VP (VBN strained)))))) (COMMA ,) (SBAR (IN after) (S (BASENP (DT the) (JJ Venezuelan) (NN government)) (VP (VBD voiced) (NP (BASENP (PRPD its) (NN opposition)) (PP (TO to) (NP (BASENP (JJ new) (JJ US) (JJ military) (NNS bases)) (VP (VBG being) (VP (VP (VBN set) (PRT (RP up))) (PP (IN in) (BASENP (NNP Colombia)))))))))))) (PERIOD .))