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

Ex Input:
Who succeeded Henry Cooper as British Heavyweight Boxing Champion?

Ex Output:
boxing


Ex Input:
Which jockey won the 1981 UK Grand National on Aldaniti?

Ex Output:
aldaniti


Ex Input:
By population, what is the largest town in Buckinghamshire?

Ex Output:

buckinghamshire