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.

Ex Input:
Given Relationship: 'be president of', Sentence: 'Remember just a few short years ago ? Bill Clinton was President of the United States , Tony Blair was a popular figure , the Patriots still sucked , and virtually every male you knew would watch professional wrestling on a Monday Night .'

Ex Output:
President


Ex Input:
Given Relationship: 'be commander in', Sentence: 'On issue after issue our hyper-partisan President has abused both the chain of command and his trust as Commander in Chief .'

Ex Output:
Commander


Ex Input:
Given Relationship: 'be president of', Sentence: 'The Saudi Arabia had been asked by Afghanistan 's president Hamid Karzai to arrange talks with the ' Taliban' about some kind of power-sharing .'

Ex Output:

president