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.
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Question: the kiwi is a bird from new zealand.

Answer: kiwi

Question: the sun belt conference is a group of college sports teams that play each other on the ncaa division i level.

Answer: sun belt conference

Question: solitary confinement is a punishment or special form of imprisonment.

Answer:
solitary confinement