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 town in', Sentence: 'The bridge would connect the Alaska town of Ketchikan to Gravina Island .'
[A]: town


[Q]: Given Relationship: 'be secretary-general of', Sentence: 'Secretary-General Ban Ki-moon appointed Kiyotaka Akasaka of Japan as United Nations Under-Secretary-General for Communications and Public Information on April 1 2007 .'
[A]: Secretary-General


[Q]: Given Relationship: 'be heart of', Sentence: 'Spring Creek Carriers is located in the heart of the city of St . Catharines in southern Ontario , Canada .'
[A]:
heart