In an unusually direct rebuke , Prime Minister Paul Martin of Canada singled out the United States at a news conference for not joining international efforts to require curbs on carbon dioxide and the other greenhouse gases . ''
Paul Martin /people/person/nationality Canada
IN DT RB JJ NN , NNP NNP NNP NNP IN NNP VBD RP DT NNP NNPS IN DT NN NN IN RB VBG JJ NNS TO VB NNS IN NN NN CC DT JJ NN NNS . ''