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.

Example Input: Given Relationship: 'be elect by', Sentence: 'Our Board of Trustees serve in a voluntary capacity and are elected by our voluntary branches or co-opted for their expertise .'
Example Output: elected

Example Input: Given Relationship: 'discover', Sentence: 'They were all established in Polynesia before Columbus discovered America , and hence could not have been introduced by later Spanish vessels .'
Example Output: discovered

Example Input: Given Relationship: 'be president of', Sentence: 'This reporter was amazed , when they mentioned that Mr. Bill Clinton , the former President of the United States of America is also an APO !'
Example Output:
President