Europe and the United States have argued that diplomatic steps to constrain Iran 's nuclear program will have greater effect if China and Russia support them .
Europe /location/location/contains Russia
NNP CC DT NNP NNPS VBP VBN IN JJ NNS TO VB NNP POS JJ NN MD VB JJR NN IN NNP CC NNP VBP PRP .
Europe
LOCATION
Russia
LOCATION
/location/location/contains