TASK DEFINITION: Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
PROBLEM: The film Schindler's List was based on whose Booker Prize winning novel of 1982?

SOLUTION: schindler's list

PROBLEM: Which British composer wrote the music used as the theme for Desert Island Discs  He also wrote the Dambusters march and the Knightsbridge march.?

SOLUTION: the dam busters

PROBLEM: What was the name of King Arthur's sword?

SOLUTION:
king arthur