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

Ex Input:
Mr Barkis, Edward Murdstone and Tommy Traddles are all characters in which Charles Dickens novel?

Ex Output:
charles dickens


Ex Input:
Bob Clampett created which character in 1938?

Ex Output:
bob clampett


Ex Input:
First shown on the station's launch night, what is Channel 5's first original soap opera called?

Ex Output:

channel 5