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 city in', Sentence: 'Milan hotels -Milan is either Italy 's second or first city , depending on who you ask .'
city

Given Relationship: 'appoint', Sentence: 'The Commission appoints the Director and approves the operating and capital budgets submitted to the Governor and Legislature .'
appoints

Given Relationship: 'be threat to', Sentence: '3. To what extent is Islam a threat to the future of Christianity in Sudan ?'

threat