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 leader of', Sentence: 'Louis Farrakhan is currently the leader of the Nation of Islam and lives in Chicago , Illinois at the former home of Elijah Muhammad , near the campus of the University of Chicago .'
leader

Given Relationship: 'be city in', Sentence: 'Only Auckland of New Zealand cities rated higher as it was ranked fifth in the world in 2006 and 2007 .'
cities

Given Relationship: 'be appoint by', Sentence: 'The Board shall appoint one of the members of the Credentials Committee as the Chair of the Committee .'

appoint