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

[Q]: In which city could you visit the Anne Frank House?
[A]: anne frank house


[Q]: Physics. What is the SI unit for amount of substance?
[A]: amount of substance


[Q]: Which Booker Prize winner coined the advertising slogan 'Naughty by nice'?
[A]:
man booker prize