Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
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Question: What is the smallest country in Central America Costa Rica, Venezuela or El Salvador?

Answer: central america


Question: Seymour is the family name of which English duke?

Answer: duke


Question: Which author wrote the classic novel Brideshead Revisited later made into a television series?

Answer:
brideshead revisited