instruction:
Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
question:
What is the second largest of the Balearic Islands ?
answer:
balearic islands


question:
The headquarters building of which government agency is known as 'The Doughnut' due to its shape?
answer:
the doughnut


question:
Who plays Violet Crawley, Dowager Countess of Grantham, in the UK television series 'Downton Abbey'?
answer:

downton abbey