(S (S (NP (BASENP (NNP Iraq) (POS 's)) (NNS exports)) (VP (VP (VBP make) (PRT (RP up))) (NP (NP (BASENP (DT the) (JJS largest) (NN proportion)) (PP (IN of) (BASENP (PRPD its) (NNP Gross) (NNP Domestic) (NNP Product)))) (CC and) (NP (BASENP (DT a) (JJ significant) (NN proportion)) (PP (IN of) (BASENP (NN world) (NN supply))))))) (PERIOD .))