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 candidate for', Sentence: 'I believe that Barack Obama is the best candidate to succeed George W. Bush as President of the United States .'
candidate

Given Relationship: 'be president of', Sentence: 'Now George W. Bush is the President of the United States .'
President

Given Relationship: 'be elect by', Sentence: 'And the continental United States elected its first Black President , Barack Obama .'

elected