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 graduate of', Sentence: 'Lisa is graduate of the Pennsylvania State University .'

A: graduate
****
Q: Given Relationship: 'be friend of', Sentence: 'I have always taken the position that Israel is a friend of the United States , and that friends should always stand up for one another , even in difficult times .'

A: friend
****
Q: Given Relationship: 'be nation in', Sentence: 'We knew that Iran was a big nation , a key player in the Middle East , a financier of terrorist activity beyond its borders , and aspired to regional and international greatness , and that many factions inside Iran yearned for normalization of relations with America .'

A:
nation
****