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.

Given Relationship: 'be president of', Sentence: 'Egypt 's President Hosni Mubarak is receiving tomorrow Palestinian President Yasser Arafat who is visiting Egypt before heading to Washington to attend the three-way summit that was urged on by the U.S President Bill Clinton and will be attended by Arafat and Israeli Prime Minister Ehud Barak .'
President

Given Relationship: 'be language of', Sentence: 'In the Greek New Testament , the Greek language is not as much influenced by figures of speech as the Old Testament .'
language

Given Relationship: 'write about', Sentence: 'Christ states that Moses wrote about him .'

about