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: 'cross', Sentence: 'In the end , Carrier 's claim remains unchallenged : we have more evidence that Caesar crossed the Rubicon than we have that Jesus rose from the grave .'
crossed

Given Relationship: 'be president of', Sentence: 'When Barack Obama became the 44th president of United States , there was a sense of ecstasy , joy and relief in virtually every country of the world , except in Pakistan , Iraq and Afghanistan .'
president

Given Relationship: 'be member of', Sentence: 'The Secretary-Treasurer becomes the Chair the following year , and the Chair then becomes a member of the Advisory Board .'
member