instruction:
Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
question:
'Edward Lewis' and 'Vivian Ward' were the principal characters in which popular 1990 film?
answer:
edward lewis

question:
The plays 'The Barber of Seville' and 'Marriage of Figaro' were written by whom?
answer:
the marriage of figaro

question:
Who had a 2012 hit with Burn it Down?
answer:
burn it down