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.
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Question: Context: It's party time, @katyperry! With 90 million on the guest list, we're gonna need a really big dance floor. ❤️ Twitter (@twitter) July 1, 2016 Answer: 90 million

Answer: how long is the guest list?


Question: Context: Oh, happy day! Our #ThankYouEvent is finally here. Take 30% off your entire purchase: Old Navy Official (@OldNavy) April 29, 2016 Answer: 30% off.

Answer: how much percent off is old navy offering as part of it's thank you event?


Question: Context: Gwyn welcomes a packed house # Andrea Mandell (@AndreaMandell) June 10, 2017 Answer: gwyn

Answer:
who welcomes a packed house?