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: The Board also announced the signing of Marc-André Ter Stegen and the return of the on loan @Rafinha and @gerardeulofeu #fcblive— FC Barcelona (@FCBarcelona) May 19, 2014 Answer: the board

SOLUTION: who announced the new signing?

PROBLEM: Context: Sad news. My MLK project involvement has ended. I did an extensive rewrite of the script, but the producers won't go with it.— Oliver Stone (@TheOliverStone) January 17, 2014 Answer: mlk project

SOLUTION: which oliver stone project has ended?

PROBLEM: 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: huge

SOLUTION:
what size are the opportunities?