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

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

[EX Q]: Who was Domenikos Theotocopoulos better known as?
[EX A]: museum of el greco

[EX Q]: Patrick Duffy played which character in 'Dallas'?
[EX A]:
patrick duffy