TASK DEFINITION: Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
PROBLEM: In March 1992 'Deeply Dippy' was the only number one hit for which group?

SOLUTION: deeply dippy

PROBLEM: Cassandra, Grizabella and Skimbleshanks are all characters in which Andrew Lloyd Webber musical?

SOLUTION: andrew lloyd webber

PROBLEM: Which author and playwright wrote An Inspector Calls, When We Are Married and Dangerous Corner?

SOLUTION:
when we are married