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.

Ex Input:
Given Relationship: 'attack', Sentence: 'It is no surprise to many Americans to hear that Bush may want to attack Iran on the same grounds he attacked Iraq .'

Ex Output:
attack


Ex Input:
Given Relationship: 'be president of', Sentence: 'Egypt 's President Hosni Mubarak is receiving tomorrow Palestinian President Yasser Arafat who is visiting Egypt before heading to Washington to attend the three-way summit that was urged on by the U.S President Bill Clinton and will be attended by Arafat and Israeli Prime Minister Ehud Barak .'

Ex Output:
President


Ex Input:
Given Relationship: 'be president of', Sentence: 'James Madison , father of the Constitution and later president of the United States , admonished that a people who mean to be their own governors must arm themselves with the power that knowledge gives .'

Ex Output:

president