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

Ex Input:
The wine-producing region of Hunter Valley is in which Australian state?

Ex Output:
australia


Ex Input:
James Dearden wrote which book, made into a famous film directed by Adrian Lyne, in 1987?

Ex Output:
adrian lyne


Ex Input:
Which Tennis star was Brooke Shields once married to?

Ex Output:

brooke shields