instruction:
Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
question:
Which race run at Chantilly in June is often referred to as the French Derby?
answer:
chantilly racecourse


question:
What did Banting and Best discover in 1921?
answer:
charles herbert best


question:
Opened in 1981, in which city can you find the 309 metre tall AMP Centrepoint tower?
answer:

sydney tower