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 largest city in Bavaria?

Answer: bavaria


Question: What hit song by the Crash Test Dummies comprised four three-letter words all containing the same letter?

Answer: crash test dummies


Question: Which film director won the Oscar for Best Picture for the film 12 Years a Slave in 2013?

Answer:
12 years a slave