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

Allopurinol is typically prescribed for which illness?
allopurinol

What breed of dog is Marmaduke in the newspaper cartoon strip of that name?
dog

Whose first volume of war memoirs was called 'Adolf Hitler, My Part In His Downfall'?

adolf hitler: my part in his downfall