Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
Example: Who was the first American President?
Example solution: president of the united states
Example explanation: The question talks about the president of the USA.

Problem: Who created the 'Daleks' in 'Dr. Who' as well as the science fiction series 'Blakes's Seven' He died in 1997.?
Solution: blake's 7