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

[Q]: Which 20th century British prime minister had the longest surname ?
[A]: prime minister of the united kingdom


[Q]: Which cyclist won the first medal for Team GB at the 2012 Olympic Games?
[A]: gb


[Q]: Who painted 'A Bigger Splash' in 1967?
[A]:
a bigger splash