Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
--------
Question: Who has written a series of novels, entitled The Dark Tower, of which the first, in 1982, was entitled, The Gunslinger?

Answer: the dark tower


Question: What was the name of the 1963 Disney live action movie, where 3 animals ventured to get themselves home?

Answer: walt disney pictures


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

Answer:
australia