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

[Q]: What is the only nation state of the Commonwealth of Nations on the mainland of South America?
[A]: commonwealth of nations


[Q]: Which BBC current affairs programme, the longest-running in the world, is 60 years old this year ?
[A]: bbc


[Q]: Who sang with the Animals?
[A]:
the animals