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.

Given Relationship: 'be city in', Sentence: 'Gardner is a city in Johnson County , Kansas , USA....'
city

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 .'
Chairman

Given Relationship: 'control', Sentence: 'The Democrats took control of the House and Senate for the first time since 1994 in January and one of the first items of business was to "repeal Big Oil subsidies , " Speaker Pelosi announced .'

control