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

Ex Input:
What is the only nation state of the Commonwealth of Nations on the mainland of South America?

Ex Output:
commonwealth of nations


Ex Input:
What type of creature is an argali?

Ex Output:
argali


Ex Input:
What is the full title of the first Austin Powers film?

Ex Output:

austin powers