instruction:
Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
question:
Forty hours before he committed suicide in 1945 Adolf Hitler married whom?
answer:
adolf hitler


question:
What is the capital city of Colombia?
answer:
colombia


question:
Dora Maar au Chat and The Weeping Woman are both portraits by which artist of his lover?
answer:

dora maar au chat