Stephen Harper , Canada 's prime minister-designate , reproached the American ambassador on Thursday over an old difference of opinion about the control of Arctic waters claimed by Canada .
Stephen Harper /people/person/nationality Canada
Stephen Harper /people/person/nationality Canada
NNP NNP , NNP POS JJ NN , VBD DT JJ NN IN NNP IN DT JJ NN IN NN IN DT NN IN NNP NNS VBN IN NNP .