TASK DEFINITION: Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
PROBLEM: Cassandra, Grizabella and Skimbleshanks are all characters in which Andrew Lloyd Webber musical?

SOLUTION: andrew lloyd webber

PROBLEM: Which late 17th and early 18th century British architect designed Brighton Pavilion, Marble Arch, and the plan for London's Regents Park?

SOLUTION: royal pavilion

PROBLEM: Which former Nazi war criminal was the subject of Ira Levin's 1976 novel The Boys from Brazil'?

SOLUTION:
the boys from brazil