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]: Who had a 2000 hit with Country Grammar?
[A]: country grammar

[Q]: 'Dora Spenlow' was the first wife of which Dickens character?
[A]:
dora spenlow