TASK DEFINITION: Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
PROBLEM: In which book of the Bible are the Ten Commandments first mentioned?

SOLUTION: bible

PROBLEM: Cinder Cone, composite, and shield are all types of what?

SOLUTION: cinder cone

PROBLEM: The 2006 film A Cock and Bull Story was about an attempt to film what book?

SOLUTION:
a cock and bull story