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

[EX Q]: Who was the CBS News anchor-man known as 'the man Americans most trust'?
[EX A]: news presenter

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

[EX Q]: In the Shakespeare play 'Cymbeline', who stole Cymbeline's sons, Guiderius and Aviragus, when they were infants?
[EX A]:
cymbeline