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

Q: Denzil Washington played which black militant leader in the 1992 film of the same name?

A: denzel washington
****
Q: What was the currency of Austria before the Euro?

A: austria
****
Q: From which author's story was the opera 'The Barber of Seville' taken?

A:
the barber of seville
****