TASK DEFINITION: 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.
PROBLEM: Given Relationship: 'invade', Sentence: 'In 2003 , the United States , under President Bush , invaded Iraq to change the regime .'

SOLUTION: invaded

PROBLEM: Given Relationship: 'win', Sentence: 'Tiger Woods , who went 91 holes on a wounded knee to win the U.S. Open on Monday , will have reconstructive surgery on the anterior cruciate ligament in his left knee and will miss the rest of the 2008 PGA TOUR season .'

SOLUTION: win

PROBLEM: Given Relationship: 'be president of', Sentence: 'Having Obama elected as the United States ' next president comes as more of a shock than anything I 'd expected out of this election .'

SOLUTION:
president