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.

Ex Input:
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 .'

Ex Output:
believing


Ex Input:
Given Relationship: 'be group in', Sentence: 'By plotting the progress of three foreign-born Hispanic age cohorts who entered the United States by 1980 and three native born Hispanic age groups , it is possible to evaluate the extent to which particular groups are making progress over time .'

Ex Output:
groups


Ex Input:
Given Relationship: 'be president of', Sentence: 'People like Thabo Mbeki former president of South Africa and Kofi Anani have been hailed for making break throughs in terms of reaching concensus in negotiations .'

Ex Output:

president