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

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

Ex Output:
wind of change


Ex Input:
Chep Lap Kok airport is located where?

Ex Output:
hong kong international airport


Ex Input:
Who follows 'the eight fold path'?

Ex Output:

noble eightfold path