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

[Q]: The 1987 film 'Roxanne' was adapted by actor Steve Martin from which Edmond Rostand play?
[A]: roxanne


[Q]: Who plays Isobel Crawley in the UK television series 'Downton Abbey'?
[A]: downton abbey


[Q]: Clarence Darrow (1857-1938), fictionalized by Tracey, Spacey, and Fonda among others, was a famous American libertarian and?
[A]:
clarence darrow