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: 'be republican on', Sentence: 'Charles Grassley of Iowa , the top Republican on the Senate Finance Committee , said , " If our law officers are overlooking the E.U. 's frozen assets list , they 're missing an obvious piece of the anti-terrorism pie . "'

Ex Output:
Republican


Ex Input:
Given Relationship: 'be mayor of', Sentence: 'Former New York City mayor Rudy Giuliani joined in the mockery .'

Ex Output:
mayor


Ex Input:
Given Relationship: 'buy', Sentence: 'News : buy cheap online viagra klonopin versus xanax xanax effect canadian online biological affects clomid does bontril work better than adipex cfc albuterol from mexico which .'

Ex Output:

buy