You will be given a definition of a task first, then some input of the task.
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: IMHO I don't think Eminem was really joking when he said he uses Grindr. He is very smart and self-aware. I think he knows people will *think* he's joking - and that his rep will say he's joking - but I don't think he's joking. And good for him! 🌈🌈🌈 billy eichner (@billyeichner) December 20, 2017 Answer: grindr
Output:
what app does eminem say that he is using?