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

[EX Q]: Denzil Washington played which black militant leader in the 1992 film of the same name?
[EX A]: denzel washington

[EX Q]: In which country did the dance The Czardas originate?
[EX A]: csardas

[EX Q]: What is the name of the central character, a Harvard professor of religious iconology and symbology, in Dan Brown's novels 'Angels And Demons' and 'The Da Vinci Code'?
[EX A]:
the da vinci code