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: 'say unto', Sentence: 'Then Pharaoh said unto Jehovah , Behold , my covenant is Jehovah , My wife .'
unto

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: 'require', Sentence: 'Map of Massey requires Adobe Flash Player 7 or higher .'

requires