instruction:
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.
question:
Context: #ifidieinpolicecustody look under my fingernails. The skin of the person who killed me will be there... Charles M. Blow (@CharlesMBlow) July 18, 2015 Answer: under fingernails
answer:
where is the skin evidence?

question:
Context: Loved the opportunity to hang out with the troops today. Thank you for your service to our country. Ben Garland (@BenGarland63) November 13, 2012 Answer: for their service.
answer:
why does the author thank the troops?

question:
Context: Check it out! Rangers at Copper Breaks State Park confirmed the radar is picking up grasshoppers & beetles! #texomawx NWS Norman (@NWSNorman) July 22, 2015 Answer: the radar is picking up grasshoppers and beetles
answer:
what is the radar picking up