instruction:
Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
question:
Who is the BBC's political editor?
answer:
bbc


question:
Which of these was the title of Bobby Darin's first million selling single?
answer:
bobby darin


question:
Featuring a pig named Napoleon! Who wrote 'Animal Farm?
answer:

napoleon