TASK DEFINITION: Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
PROBLEM: Thereze Bazar and David van Day were better known as which duo?

SOLUTION: david van day

PROBLEM: Which American screenwriter, producer, director, actor, author and editor, most productive in the 1950's, made Plan 9 From Outer Space, Glen or Glenda and Bride Of The Monster?

SOLUTION: screenwriter

PROBLEM: Which river flows through Hobart in Tasmania - there are English rivers of the same name in Cumbria, Derbyshire and Yorkshire?

SOLUTION:
derbyshire