(S (S (BASENP (DT The) (NN dispute)) (VP (VBD was) (PP (IN over) (NP (NP (BASENP (NNP Colombia) (POS 's)) (BASENP (NN air) (NN strike))) (PP (IN against) (NP (BASENP (NNP FARC) (NNS rebels)) (COMMA ,) (SBAR (WHNP (WDT which)) (S (BASENP (NNP Ecuador)) (VP (VBD accused) (PP (IN of) (S (VP (VBG entering) (BASENP (PRPD their) (NN territory)))))))))))))) (PERIOD .))