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 Q]: Given Relationship: 'be chairman of', Sentence: 'President Bush named his top economic advisor , Ben Bernanke to replace economic legend Alan Greenspan as the chairman of the Federal Reserve .'
[EX A]: chairman

[EX Q]: Given Relationship: 'defeat', Sentence: 'Bill Clinton defeats George H. W. Bush in national elections and becomes president-elect of the United States .'
[EX A]: defeats

[EX Q]: Given Relationship: 'be island in', Sentence: 'Alameda , California , is located on an island in San Francisco Bay .'
[EX A]:
island