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

[EX Q]: Who painted The Card Players, at Feb 2012 the most expensive artwork in the world?
[EX A]: the card players

[EX Q]: Which musical has the songs 'Another Suitcase In Another Hall' and 'Oh What A Circus'?
[EX A]: another suitcase in another hall

[EX Q]: In what region of Spain is Barcelona located?
[EX A]:
spain