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: 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
what was mistaken in the account yesterday?

Context: "theres also an asteroid that's going to kill everyone in september" MOM STAY OFF THE INTERNET. *sigh*— Foxena (@Foxena) August 18, 2015 Answer: his mom.
who is the poster quoting?

Context: When I cramped and won in the us open last year I was a "drama Queen, unfit, needs to see a shrink, faker" weird...— Andy Murray (@andy_murray) January 22, 2015 Answer: andy murray

who won the us open last year?