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

Q: Written by Edgar Allen Poe and published in 1845, what poem repeats the famous line `nevermore`?

A: edgar allan poe
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Q: The site of the 1461 Battle of Mortimer's Cross lies in which English county?

A: battle of mortimer's cross
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Q: What is the name of the character who is the protagonist in the 'Die Hard' film series?

A:
die hard
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