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 mayor of', Sentence: 'Former New York City mayor Rudy Giuliani joined in the mockery .'
mayor

Given Relationship: 'support by', Sentence: 'The U.S. Department of Energy , the National Science Foundation , the National Institutes of Health 's National Institute of General Medical Sciences , and Columbia 's Center for Advanced Technology in Information Management are supporting the research .'
supporting

Given Relationship: 'marry', Sentence: 'His grandson John Cook married Mary Holmes and had a large family .'

married