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

Ex Input:
What is the country of origin of the cheese called caerphilly?

Ex Output:
caerphilly cheese


Ex Input:
July 1938 saw the first ascent of the North Face of which Alpine mountain?

Ex Output:
alps


Ex Input:
Which rapper topped the charts in 1996 with California Love?

Ex Output:

california