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 chairman of', Sentence: 'Alan Greenspan , the Chairman of the U.S. Federal Reserve , the current U.S. administration , and U.S. politicians of all stripes could teach a few lessons to those who dictated the level of inflation ahead of them .'

Ex Output:
Chairman

Ex Input:
Given Relationship: 'star as', Sentence: 'Another star who stumbled at the 2007 box office was Nicole Kidman , who starred in " Invasion of the Body Snatchers " remake " Invasion , " New Line 's disappointing " The Golden Compass " and Noah Baumbach 's limited arthouse release " Margot at the Wedding . "'

Ex Output:
star

Ex Input:
Given Relationship: 'be president of', Sentence: 'Abraham Lincoln was elected President of the United States in 1860 . "'

Ex Output:
President