TASK DEFINITION: Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
PROBLEM: Lexus is the luxury vehicle division of what car maker?

SOLUTION: lexus

PROBLEM: Which popular animated characters, first seen in 1996 include many different characters including ones called Ash Ketchum, Tracy Sketchit and Gar Oak?

SOLUTION: tracy

PROBLEM: Which actor played dodgy author Mel Hutchwright in Coronation Street?

SOLUTION:
mel hutchwright