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 name is given to the disease whereby parasites can change the behaviour of rats and mice, making them drawn to rather than fearful of the scent of cats?

Answer: cat


Question: In book and film, which vessel was commanded by Charlie Allnut?

Answer: charlie allnut


Question: 'The Codex Leicester' (or Codex Hammer) is a collection of mostly scientific writings by which scientist/inventor?

Answer:
codex leicester