TASK DEFINITION: Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
PROBLEM: Who directed the film Bonnie and Clyde?

SOLUTION: bonnie and clyde

PROBLEM: Which engineer built the Menai Suspension Bridge and the Caledonian Canal?

SOLUTION: menai suspension bridge

PROBLEM: Who was known for the catchphrase Bernie, ... the bolt?

SOLUTION:
the golden shot