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: Who is Claudios lover in Much Ado About Nothing?

Answer: claudio


Question: In which country are the Angel Falls, or Kerepakupai Ven?

Answer: angel falls


Question: In 480 BC, Leonidas led his 300 Spartans against the Persian army, led by Xerxes, in which land battle?

Answer:
battle of thermopylae