input question: Determine the topic of the question. Question: "what is the defensive line in football called?" Topic:???
output answer: American football positions

Determine the topic of the question. Question: "WHAT IS NON BINDING??" Topic:
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Answer: Non-binding arbitration

Q: Determine the topic of the question. Question: "how does nanotechnology affect health?" Topic:
A: Nanotechnology

Question: Determine the topic of the question. Question: "what county is chula vista ca in?" Topic:
Answer: Chula Vista, California

[Q]: Determine the topic of the question. Question: "what is ethernet gigabit?" Topic:
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[A]: Gigabit Ethernet

Problem: Given the question: Determine the topic of the question. Question: "when does black friday start for christmas?" Topic:
++++++++++++++++++++++++++++++++
The answer is:
Black Friday (shopping)