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

Answer: adrian lyne


Question: Who has taken over the TV role of Doctor Who, from actor David Tennant?

Answer: doctor who


Question: What was the name of the character played by Alec Guinness in the TV series Tinker, Tailor, Soldier, Spy?

Answer:
alec guinness