Definition: In this task, you are given a context tweet and an answer. Your job is to generate a question for the given answer based on the given tweet paragraph. Note that your question should be answerable based on the given tweet, and the answer to your question should be the given answer.
Input: Context: A9: Africa is the last "blue ocean" for tech, the opportunities here are huge. Why would you choose anywhere else? #CNNAfrica— Erik Hersman (@whiteafrican) January 14, 2015 Answer: blue
Output:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
what color is the ocean?