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 California?

SOLUTION: california

PROBLEM: Miss Rosa Dartle is a character in which Charles Dickens novel?

SOLUTION: james steerforth

PROBLEM: Who created Are You Being Served and Allo Allo with David Croft?

SOLUTION:
'allo 'allo!