TASK 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.
PROBLEM: Context: #IWishMyTeacherKnew how to do a backflip. Ss challenging me to learn new things. It's exciting! #ChallengeAccepted Cassie Norsworthy (@mrsnorsworthy) April 17, 2015 Answer: how to do a back flip.

SOLUTION: what type of challenge was accepted?

PROBLEM: Context: Congrats @andy_murray & Kim for your wedding. I wish you all the best!— Rafa Nadal (@RafaelNadal) April 12, 2015 Answer: their wedding

SOLUTION: what are they being congratulated for?

PROBLEM: Context: Q7: What's the best way to promote your tech startup? And how important is it to attract media attention? #CNNAfrica CNN African Start-Up (@cnnafricanstart) January 14, 2015 Answer: tech startups

SOLUTION:
what kind of businesses are being addressed by cnn africa?