TASK DEFINITION: Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
PROBLEM: What is the capital of the US state of Delaware?

SOLUTION: delaware

PROBLEM: Which Chuck Berry song is performed by Marty McFly at the end of the film Back to the Future?

SOLUTION: back to the future

PROBLEM: Which British group released the albums `Definitely Maybe' and 'Be Here Now' in the 1990s?

SOLUTION:
definitely maybe