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

Ex Input:
Betty Driver played which role in Coronation Street?

Ex Output:
betty driver

Ex Input:
Which British Prime Minister delivered the 'Winds of Change' speech in 1960?

Ex Output:
wind of change

Ex Input:
Courbet belonged to which artistic school?

Ex Output:
gustave courbet