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.

Input: Consider Input: Given Relationship: 'be chairman of', Sentence: 'Alan Greenspan , the Chairman of the U.S. Federal Reserve , the current U.S. administration , and U.S. politicians of all stripes could teach a few lessons to those who dictated the level of inflation ahead of them .'

Output: Chairman


Input: Consider Input: Given Relationship: 'be call', Sentence: 'Seattle might be called The Emerald City , but you 'll be the gem that everyone talks about if you 're wearing Armani Exchange .'

Output: called


Input: Consider Input: Given Relationship: 'present at', Sentence: 'Paper presented at the International Association for Relationship Research Conference , Madison , Wisconsin , USA .'


Output: presented