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 president of', Sentence: 'Tomorrow Barack Obama will become president of the United States .'
answer:
president

question:
Given Relationship: 'believe in', Sentence: 'Faith is believing in God 's character - He is who He says , Faith is also believing God 's promises - He will do what He says .'
answer:
believing

question:
Given Relationship: 'be officer of', Sentence: 'Previously , Mark also served as Vice President - Finance and Chief Financial Officer for Oklahoma Christian University and Vice President , Corporate Controller for Crested Butte Mountain Resort .'
answer:
Officer