TASK DEFINITION: Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
PROBLEM: 'Dookie' and '21st. Century Breakdown' are albums by which American rock band?

SOLUTION: 21st century breakdown

PROBLEM: What was the computer's name in 2001: A Space Odyssey?

SOLUTION: 2001: a space odyssey

PROBLEM: The second highest mountain in Africa has the same name as which country?

SOLUTION:
africa