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

What was the computer's name in 2001: A Space Odyssey?
2001: a space odyssey

Which sprinter lit the Olympic flame at the 2000 Summer Olympic Games in Australia?
2000 summer olympics

'Caractacus Potts' is a character from which book and film?

caractacus pott