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

Ex Input:
The 1987 film 'Roxanne' was adapted by actor Steve Martin from which Edmond Rostand play?

Ex Output:
roxanne


Ex Input:
Which novel by A J Cronin is credited with laying down the foundation in Great Britain for the introduction of the National Health Service?

Ex Output:
a. j. cronin


Ex Input:
Which Dickens novel takes place during the French revolution?

Ex Output:

french revolution