Part 1. Definition
Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
Part 2. Example
Who was the first American President?
Answer: president of the united states
Explanation: The question talks about the president of the USA.
Part 3. Exercise
Although it was headquartered at Oak Ridge, TN, and the University of Chicago, what was the name of the WWII project that created the atomic bomb?
Answer:
nuclear weapon