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

What book was written by Alexandre Dumas about Edmond Dantes' imprisonment in the Chateau d'If?
alexandre dumas

Which popular Doctor Who villains, it was revealed in 2011, are to be given 'a rest' by scriptwriters?
doctor who

The songs I got Life and Aquarius come from which musical?

aquarius