Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.

Example Input: Barabas is the central character in what 16th century play?
Example Output: barabas

Example Input: Which British Prime Minister delivered the 'Winds of Change' speech in 1960?
Example Output: wind of change

Example Input: Richard Block and David Quayle founded which British-based DIY retailing company in 1969?
Example Output:
david quayle