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.

Context: Very confused why white militiamen are claiming they're "taking back" land that was stolen by their white ancestors #OregonUnderAttack— Larry Waldbillig (@LarryWaldbillig) January 3, 2016 Answer: white militianmen
who were claiming to take back land?

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

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

who announced the new signing?