input question: Determine the topic of the question. Question: "when was Pope Benedict XVI elected??" Topic:???
output answer: Pope Benedict XVI

Determine the topic of the question. Question: "what is vitamin a for?" Topic:
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Answer: Vitamin A

Q: Determine the topic of the question. Question: "where do mangos come from?" Topic:
A: Mango

Question: Determine the topic of the question. Question: "What did Lawrence Joshua Chamberlain do??" Topic:
Answer: Joshua Chamberlain

[Q]: Determine the topic of the question. Question: "what do biologists do?" Topic:
****
[A]: Biologist

Problem: Given the question: Determine the topic of the question. Question: "when was the constitution written?" Topic:
++++++++++++++++++++++++++++++++
The answer is:
Constitution