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.

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

A: mayor
****
Q: Given Relationship: 'look for', Sentence: 'With new products , a redesigned web site , and a whole new look for the classic Zuluboard , ZuluWorks ' kneeboards and accessories have never looked better .'

A: look
****
Q: Given Relationship: 'be power by', Sentence: 'Jazz Band Blog is proudly powered by WordPress | Entries .'

A:
powered
****