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 city in', Sentence: 'Mumbai is the second most populous city in India and the country 's chief principal west seaport .'
city

Given Relationship: 'say to', Sentence: 'And Paul says that if you try to earn dividends from Christ from your own investment of circumcision or dietary rules or feast days , Christ will profit you nothing .'
says

Given Relationship: 'be president of', Sentence: 'Barrack Obama , becomes the 44th president of the United States .'

president