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.

Ex Input:
Context: Emma Watson has been cast as Belle in Disney's adaptation of the "Beauty and the Beast" stage musical. Wonderful choice!— Stefan Ellison (@MisterCoat) January 26, 2015 Answer: emma watson

Ex Output:
who has been cast as belle?


Ex Input:
Context: We regret the mistaken RTs from our account yesterday and look forward to continuing to share the beauty and history of our parks with you NationalParkService (@NatlParkService) January 21, 2017 Answer: rt's

Ex Output:
what was mistaken in the account yesterday?


Ex Input:
Context: @redcross volunteer Jeremy Bishop unloading water for 250 first responders in Tornado hit, Vilonia, Ark. Darren Irby (@deirby) April 28, 2014 Answer: jeremy bishop

Ex Output:

who is a redcross volunteer?