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 largest country in Africa?

A: africa
****
Q: 'Bring It All Back' was the debut single for which group in 1999?

A: bring it all back
****
Q: Who began directing with Grand Theft Auto (1977) and won his first Best Director Oscar for A Beautiful Mind (2001)?

A:
grand theft auto
****