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: 'Brigham City is a city in Box Elder County , Utah , United States .'
city

Given Relationship: 'be governor of', Sentence: 'His candidacy galvanized young and idealistic voters in much the same way that former Vermont governor Howard Dean energized those opposed to the war in Iraq .'
governor

Given Relationship: 'be president of', Sentence: 'When Barack Obama became the 44th president of United States , there was a sense of ecstasy , joy and relief in virtually every country of the world , except in Pakistan , Iraq and Afghanistan .'

president