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

[Q]: Which evolutionary biologist wrote The Ancestor's Tale in 2004?
[A]: the ancestor's tale


[Q]: What currency is used on Christmas Island?
[A]: christmas island


[Q]: In January 2010 Cadburys advised shareholders to accept a bid from which food company?
[A]:
cadbury