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.
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Question: Given Relationship: 'vote on', Sentence: 'A vote on CAFTA is ripening in Congress .'

Answer: vote

Question: Given Relationship: 'land on', Sentence: 'Huygens - landed on Titan , Saturn 's largest moon , in January 2005 .'

Answer: landed

Question: Given Relationship: 'be president of', Sentence: 'If Barack Obama really becomes President of the United States , dont you think hell be just a little bit more accountable to the one million people who donated directly to his campaign ?'

Answer:
President