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

Who plays Isobel Crawley in the UK television series 'Downton Abbey'?
downton abbey

Angel Clare is a character in which novel by Thomas Hardy?
angel clare

The Balkan Trilogy and The Levant Trilogy, both written by Olivia Manning were made into which 1987 BBC TV series starring Emma Thompson and Kenneth Branagh?

emma thompson