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

Ex Input:
Lopburi, Phichit and Ang Thong are provinces in which Asian country?

Ex Output:
phichit

Ex Input:
In which city were the 2002 Winter Olympic Games held?

Ex Output:
2002 winter olympics

Ex Input:
The battle of Crecy was fought during which war?

Ex Output:
battle of crecy