input question: Determine the topic of the question. Question: "what are the characteristics of an ethnic group?" Topic:???
output answer: Ethnic group

Determine the topic of the question. Question: "what cars have smart key systems?" Topic:
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Answer: Smart key

Q: Determine the topic of the question. Question: "when was srv born?" Topic:
A: Stevie Ray Vaughan

Question: Determine the topic of the question. Question: "what is the sign for degrees?" Topic:
Answer: Degree symbol

[Q]: Determine the topic of the question. Question: "what kind of books does debbie macomber writes?" Topic:
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[A]: Debbie Macomber

Problem: Given the question: Determine the topic of the question. Question: "what is the controlled substance act known as?" Topic:
++++++++++++++++++++++++++++++++
The answer is:
Controlled Substances Act