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: Bound for Glory is the 1943 autobiography of which singer-songwriter?

Answer: bound for glory


Question: Brenda Mae Tarpley achieved fame under what name?

Answer: brenda mae tarpley


Question: Which battle, the first major engagement of the Crimean War took place on 20th September 1854?

Answer:
crimean war