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

Ex Input:
Which mountain range extends through Morocco, Tunisia and Algeria, with its highest peak at Mount Jebel Toubkal?

Ex Output:
tunisia


Ex Input:
Who directed the film Black Swan (in ballet)?

Ex Output:
black swan


Ex Input:
Whose plays included 'Design for Living' and 'Present Laughter'?

Ex Output:

design for living