(S (S (NP (NP (BASENP (DT An) (NN exchange)) (PP (IN of) (BASENP (NNS handshakes)))) (PP (IN at) (NP (BASENP (DT a) (JJ Latin) (JJ American) (NN summit)) (BASENP (NNP Friday))))) (VP (VBD marked) (NP (BASENP (DT the) (NN end)) (PP (IN of) (NP (BASENP (DT the) (JJ bitter) (NN dispute)) (SBAR (WHNP (WDT that)) (S (VP (VBD had) (VP (VP (VP (VBN taken) (BASENP (NN place))) (PP (IN between) (NP (BASENP (DT the) (NNS nations)) (PP (IN of) (NP (NP (BASENP (NNP Colombia)) (COMMA ,) (BASENP (NNP Ecuador))) (CONJP (COMMA ,) (CC and)) (BASENP (NNP Venezuela))))))) (PP (IN over) (BASENP (DT the) (JJ past) (NN week)))))))))))) (PERIOD .))