instruction:
Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
question:
Which future Nobel Prize winner did Bill Clinton choose as his Vice President?
answer:
vice president of the united states


question:
What is the largest city in Bavaria?
answer:
bavaria


question:
Which famous Hollywood actor (not including Presidents) had the highest military rank as a Brigadier General in the US Army Reserve?
answer:

brigadier general