Problem: Given the question: Determine the topic of the question. Question: "how does a dredge work??" Topic:
++++++++++++++++++++++++++++++++
The answer is:
Dredging

Problem: Given the question: Determine the topic of the question. Question: "when was the internet started?" Topic:
++++++++++++++++++++++++++++++++
The answer is:
History of the Internet

Problem: Given the question: Determine the topic of the question. Question: "what is a gasser car?" Topic:
++++++++++++++++++++++++++++++++
The answer is:
Gasser (car)