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

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

[Q]: Who starred in and directed the 1993 film A Bronx Tale?
[A]: a bronx tale

[Q]: I am the egg man' is a line from which Beatles song?
[A]:
the beatles