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

[EX Q]: James Dearden wrote which book, made into a famous film directed by Adrian Lyne, in 1987?
[EX A]: adrian lyne

[EX Q]: Will you still be sending me a valentine is a line from which Beatles song?
[EX A]: the beatles

[EX Q]: Which country declared war on Britain in 1812?
[EX A]:
united kingdom of great britain and ireland