Problem: Given the question: Determine the topic of the question. Question: "who sang the nights the lights went out?" Topic:
++++++++++++++++++++++++++++++++
The answer is:
The Night the Lights Went Out in Georgia

input question: Determine the topic of the question. Question: "What is and where is hydraulic fluid found and used for?" Topic:???
output answer: Hydraulic fluid

Determine the topic of the question. Question: "what is the capacity of the cowboy stadium?" Topic:
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Answer: Cowboys Stadium

Q: Determine the topic of the question. Question: "when did playstation 3 first launch?" Topic:
A: PlayStation 3 launch

Question: Determine the topic of the question. Question: "who did richard nixon refer to as the silent majority?" Topic:
Answer: Silent majority

Please answer this: Determine the topic of the question. Question: "when does a demand curve shift??" Topic:
++++++++
Answer:
Demand curve