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: Which instrument was Benny Goodman famous for playing?

Answer: benny goodman


Question: Which mediaeval author wrote The Canterbury Tales?

Answer: the canterbury tales


Question: What drink was invented by pharmacist Caleb Bradham in North Carolina in 1893, and marketed under the heading Delicious and Healthful?

Answer:
caleb bradham