Q: Determine the topic of the question. Question: "what is file based system?" Topic:
A: File system

Q: Determine the topic of the question. Question: "where is rolling rock brewed?" Topic:
A: Rolling Rock

Q: Determine the topic of the question. Question: "Where is Bubbles the Chimp now?" Topic:
A: Bubbles (chimpanzee)

Q: Determine the topic of the question. Question: "how many died in hiroshima and nagasaki?" Topic:
A:
Atomic bombings of Hiroshima and Nagasaki