(S (S (BASENP (DT The) (NNP United) (NNPS Nations)) (VP (MD might) (VP (VB discontinue) (NP (NP (BASENP (NN use)) (PP (IN of) (BASENP (JJ Fijian) (NNS soldiers)))) (PP (IN in) (NP (BASENP (JJ peacekeeping) (NNS operations)) (SBAR (WHPP (IN of) (WHNP (WDT which))) (S (VP (VBZ is) (NP (BASENP (DT a) (JJ large) (NN source)) (PP (IN of) (NP (BASENP (NNP Fiji) (POS 's)) (NN income))))))))))))) (PERIOD .))