instruction:
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.
question:
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 .'
answer:
chairman


question:
Given Relationship: 'be secretary of', Sentence: 'He appointed Colin Powell as Secretary of State , Paul O'Neill as Secretary of the Treasury , and Donald Rumsfeld as the Secretary of Defense .'
answer:
Secretary


question:
Given Relationship: 'be fellow of', Sentence: 'Hank is a Fellow of the ACM , a Fellow of the IEEE , and recipient of a Fulbright Research Scholar Award .'
answer:

Fellow