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

[Q]: After Harold McMillan who was Britain's next Prime Minister?
[A]: britain


[Q]: What is the name of the co-founder of Apple Computers who died in October 2011?
[A]: apple inc.


[Q]: Antigonus is a character in which Shakespeare play?
[A]:
antigonus