Generate a topic word for the given sentence. A topic word is usually the name of a person, place, animal, concept or object the sentence is focusing on.

Q: yu gamdong (, ?

A: yu gamdong
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Q: the global hunger index is a measurement to measure the hunger situation in a country.

A: global hunger index
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Q: zellers was canada's second-largest chain of mass merchandise department stores.

A:
zellers
****