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

[Q]: In which book of the Bible are the Ten Commandments first mentioned?
[A]: bible

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

[Q]: The Bourbon dynasty began to rule which country from 1700 and still do?
[A]:
house of bourbon