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.

Q: Context: I just talked to my mother in #Tehran. She was crying out of joy. Prayed for all youths, for Iran & all of us. Bless my mother! #IranDeal CameliaEntekhabifard (@CameliaFard) July 14, 2015 Answer: out of joy

A: why was mother crying
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Q: Context: #Beyonce has reportedly given birth to the twins, which means her next Instagram photo will be the greatest photo of all time. Michelle da Silva (@michdas) June 18, 2017 Answer: twins

A: who did beyonce give birth to?
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Q: Context: In 2000 Maiden II proved the benfits of men and women sailing together so well done to @volvooceanrace for continuing our work! #24hrrecord Tracy Edwards (@TracyEdwardsMBE) October 11, 2016 Answer: the benefits of men and women sailing together.

A:
what did maiden ii prove?
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