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

[EX Q]: On which date do we celebrate 'Boxing Day'?
[EX A]: boxing day

[EX Q]: The Bryce Canyon and Zion National Parks are in which US state?
[EX A]: bryce canyon national park

[EX Q]: Which author created the Alex Rider books and the Power of Five series?
[EX A]:
the power of five