From the given sentence, extract the phrase (often noun or verb) that carries the given relationship. The generated phrase should be present in the sentence.

[Q]: Given Relationship: 'be president of', Sentence: 'Now George W. Bush is the President of the United States .'
[A]: President


[Q]: Given Relationship: 'be capital of', Sentence: 'We quickly learned that Prague has become the fashion capital of Eastern Europe .'
[A]: capital


[Q]: Given Relationship: 'bomb', Sentence: 'Should Iran fire missiles into Israel , Israel would respond by bombing Iran with its nuclear arsenal and turn Tehran into a glass factory .'
[A]:
bombing