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: 'be president of', Sentence: 'Ted Haggard resigned Thursday afternoon as president of the National Association of Evangelicals , amid allegations that surfaced Wednesday about involvement with a male prostitute .'

Ex Output:
president

Ex Input:
Given Relationship: 'buy', Sentence: 'Overall , diabetes is one of the therapy might start by the end of 2005 , and eventually about 400 patients buy cheap uk viagra will be revolutionary cheapest online viagra cheap generic viagra online viagra pills , he added dr . buy cheap viagra online uk Melman is a reasonable possibility since atherosclerosis of arteries decreases blood supply cheapest viagra to both heart and penis .'

Ex Output:
buy

Ex Input:
Given Relationship: 'be part of', Sentence: 'The following year India recognized Tibet as part of China and withdrew the garrisons it maintained at two Tibetan frontier trading posts .'

Ex Output:
part