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.

[Q]: Given Relationship: 'be chief of', Sentence: 'We work for the Chief Executive Officer also known as The President of the United States .'
[A]: Chief


[Q]: Given Relationship: 'attack', Sentence: 'Hitler attacked Poland on September 1 .'
[A]: attacked


[Q]: Given Relationship: 'elect', Sentence: 'Try as Obama will , the American people will not elect a black president .'
[A]:
elect