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: What is the capital city of Colombia?

Answer: colombia


Question: Which proponent of Method acting directed the films 'On the Waterfront' and 'East of Eden'?

Answer:
on the waterfront