instruction:
In this task, you are given a context tweet, a question and corresponding answer of given question. Your task is to classify given passage into two categories: (1) "yes" if the given context is useful in answering the question, and (2) "no" if the given context is not useful.
question:
Context: I desperately want a reporter to ask Sean Spicer what he has in his teeth Alexandra Gallant (@Gallantdesigner) March 27, 2017 Question: who was the piece by? Answer: dmitriy samohin
answer:
no


question:
Context: We can't destroy the competitiveness of our factories in order to prepare for nonexistent global warming. China is thrilled with us!— Donald J. Trump (@realDonaldTrump) November 5, 2012 Question: who is thrilled with us? Answer: china
answer:
yes


question:
Context: Thank you @serenawilliams you know @vika7 and me won't be having any fun. Lol! Thank you for 8 unforgettable years, what a ride it was....— sascha Bajin (@BigSascha) March 4, 2015 Question: how long was @serenawilliams ride? Answer: 8 unforgettable years
answer:

yes