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 city is closest to Copacabana beach?

Answer: copacabana, rio de janeiro


Question: Who was Prime Minister of Australia at the outbreak of World War I?

Answer: australia


Question: Which admiral was executed in 1759, for failing to do his utmost, during the Battle of Minorca?

Answer:
battle of minorca