instruction:
Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
question:
What is the capital of the American state of Delaware Boise, Dover or Jefferson City?
answer:
delaware


question:
Who has written a series of novels, entitled The Dark Tower, of which the first, in 1982, was entitled, The Gunslinger?
answer:
the dark tower


question:
Which eponymous Dickens character married Madeline Bray?
answer:

charles dickens