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

Ex Input:
'Arthur Clennam', 'Jeremiah Flintwinch', and 'Edward Sparkler' are all characters in which Dickens' novel?

Ex Output:
arthur clennam


Ex Input:
Chris Difford and Glenn Tilbrook founded which band in 1974?

Ex Output:
chris difford


Ex Input:
Feb 13, 2000 saw the last original installment of what comic strip, following the death of its creator, Charles Shultz?

Ex Output:

charles m. schulz