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.
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Question: Given Relationship: 'be focus of', Sentence: 'The Glaucoma Research Center at Wills Eye Institute focuses and coordinates these efforts to discover and disseminate sight-saving knowledge around the world .'

Answer: focuses


Question: Given Relationship: 'work in', Sentence: 'Immigration Minister Kevin Andrews said Australia would work with other countries to find a home for the Nauruan refugees .'

Answer: work


Question: Given Relationship: 'be city of', Sentence: 'Now the bombing of Haiphong , the port of North Vietnam 's principal city , Hanoi , seemed inevitable .'

Answer:
city