TASK DEFINITION: Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
PROBLEM: Which British Prime Minister delivered the 'Winds of Change' speech in 1960?

SOLUTION: wind of change

PROBLEM: Who won the Women's Singles at the 2015 Australian Open Tennis Championships?

SOLUTION: the championships, wimbledon

PROBLEM: In which city is the worlds oldest museum - Ashmolian 1679?

SOLUTION:
ashmolean museum