input question: Determine the topic of the question. Question: "what is impingement of the shoulder?" Topic:???
output answer: Impingement syndrome

Determine the topic of the question. Question: "what is steam by valve corporation?" Topic:
----
Answer: Steam (software)

Q: Determine the topic of the question. Question: "how many days does the chinese new year last?" Topic:
A: Chinese New Year

Question: Determine the topic of the question. Question: "how is single malt scotch made?" Topic:
Answer: Single malt Scotch

[Q]: Determine the topic of the question. Question: "who sang sun city?" Topic:
****
[A]: Sun City (song)

Problem: Given the question: Determine the topic of the question. Question: "how much of earth is covered ocean water?" Topic:
++++++++++++++++++++++++++++++++
The answer is:

Ocean