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

Ex Input:
Which TV screenwriter created the science fiction shows, Survivors and Blake's Seven?

Ex Output:
blake's 7


Ex Input:
Which American city has baseball-playing 'Dodgers'?

Ex Output:
los angeles dodgers


Ex Input:
John Deacon played Bass in which band?

Ex Output:

john deacon