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: Who composed 'Belshazzar's Feast' cantata?

SOLUTION: belshazzar's feast

PROBLEM: US rock musician Carmine Appice is famous for playing which instrument?

SOLUTION:
carmine appice