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.
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Question: Context: Nobody can deny @realDonaldTrump uncovered a 14 year long 9/11 cover-up re: celebrations on Jersey City rooftops. — Daniel Scavino Jr. (@DanScavino) December 2, 2015 Question: who uncovered a 14-year long 9/11 cover-up? Answer: donald trump

Answer: yes


Question: Context: Katy Perry rocking the Wii safety strap during the halftime show. #SuperBowl Funny Or Die (@funnyordie) February 2, 2015 Question: who was wearing a safety strap? Answer: katy perry

Answer: yes


Question: Context: ...They have been in our country for many years through no fault of their own - brought in by parents at young age. Plus BIG border security— Donald J. Trump (@realDonaldTrump) September 14, 2017 Question: who were they brought in by? Answer: parents

Answer:
yes