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

Answer: angel falls

Question: In 1959, for which film did David Niven win his only Academy Award?

Answer: david niven

Question: Who wrote the novella A Clockwork Orange?

Answer:
a clockwork orange