Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
--------
Question: James Dearden wrote which book, made into a famous film directed by Adrian Lyne, in 1987?

Answer: adrian lyne


Question: What is the French name for the English Channel?

Answer: channel


Question: The 'Argun' and'Khotan' are rivers in which country?

Answer:
argun river