Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.

In which city were the 2002 Winter Olympic Games held?
2002 winter olympics

The Cato Street Conspiracy was a plot to kill which British Prime Minister?
prime minister of the united kingdom

Who was the only British Prime Minister to hold office during the reigns of three British monarchs?

prime minister of the united kingdom