Problem: Given the question: Determine the topic of the question. Question: "What region of France is Montargis in??" Topic:
++++++++++++++++++++++++++++++++
The answer is:
Montargis

Problem: Given the question: Determine the topic of the question. Question: "what are add ons?" Topic:
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The answer is:
Add-on

Problem: Given the question: Determine the topic of the question. Question: "What is hydrogen in?" Topic:
++++++++++++++++++++++++++++++++
The answer is:
Hydrogen