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 only nation state of the Commonwealth of Nations on the mainland of South America?
answer:
commonwealth of nations


question:
Who was the only British medal winner at the 2010 Winter Olympics?
answer:
2010 winter olympics


question:
The artists Monet, Manet, Degas and Cezanne are mainly noted for what style of art?
answer:

edgar degas