Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.

Q: Which popular animated characters, first seen in 1996 include many different characters including ones called Ash Ketchum, Tracy Sketchit and Gar Oak?

A: tracy
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Q: Which novel by A J Cronin is credited with laying down the foundation in Great Britain for the introduction of the National Health Service?

A: a. j. cronin
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Q: In Italian, the word Duomo means which building?

A:
duomo
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