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: Enjoy a full moon this Christmas! Last one was 1977, & there won't be one again until 2034. NASA (@NASA) December 24, 2015 Answer: 2034

Ex Output:
when is the next full moon on christmas?

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: We did it, Cleveland. #NBAChampions | #OneForTheLand Cleveland Cavaliers (@cavs) June 20, 2016 Answer: cleveland

Ex Output:
who are the nba champions?