(S (S (BASENP (NNP Rio) (NNP Tinto)) (VP (VBP have) (S (S (NP (BASENP (JJ sufficient) (NNS stocks)) (PP (IN of) (BASENP (NN iron) (NN ore)))) (PP (ADVP (RB already)) (PP (IN in) (BASENP (NN place))))) (S (VP (TO to) (VP (VB keep) (S (VP (VBG working))))))))) (PERIOD .))