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

Q: What's missing: Magnum Force, The Enforcer, Sudden Impact, and The Dead Pool?

A: sudden impact
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Q: Which Bob Dylan song begins You got a lotta nerveTo say you are my friend. When I was down, You just stood there grinning?

A: bob dylan
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Q: Which children's classic book was written by Anna Sewell?

A:
anna sewell
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