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

[EX Q]: Which was the title of the 7th and final book in the Chronicles of Narnia by C.S. Lewis?
[EX A]: the chronicles of narnia

[EX Q]: Will you still be sending me a valentine is a line from which Beatles song?
[EX A]: the beatles

[EX Q]: Who painted 'A Bar At The Folies Bergere'?
[EX A]:
a bar at the folies-bergere