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

[Q]: Who plays Isobel Crawley in the UK television series 'Downton Abbey'?
[A]: downton abbey


[Q]: Which mediaeval author wrote The Canterbury Tales?
[A]: the canterbury tales


[Q]: What is the name of the international cricket ground in Brisbane, Australia?
[A]:
brisbane