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

[EX Q]: In what story of Arthur C. Clarke do Tibetan monks seek to list all the names of God as they believe He will bring the Universe to an end once this is done?
[EX A]: arthur c. clarke

[EX Q]: In which opera does a hunchback jester help his master, the Duke of Mantua, to seduce the daughter of a courtier?
[EX A]: duke of mantua

[EX Q]: Who plays Bella Swan in the Twilight films?
[EX A]:
bella swan