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 1864, the Dale Dyke Dam burst while being filled, leading to the death of 240 people in which British city?

Answer: dale dike reservoir


Question: Which biologist was known as Darwin's Bulldog?

Answer: charles darwin


Question: Anthony Hopkins and Emma Thompson play the head butler and housekeeper in which 1993 film?

Answer:
emma thompson