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 Union leader of the American Civil War gave his name to a tree in California's 'Sequoia National Park'?

Answer: american civil war


Question: Which King was born at Dunfermline Palace in November 1600?

Answer: dunfermline palace


Question: Who has been the editor of the Daily Mail since 1992?

Answer:
daily mail