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: Katy Perry's Halftime in a nutshell Travis Lattner (@TLatt7) February 2, 2015 Question: what is this twitter page currently discussing Answer: katy perry's halftime show

Answer: yes


Question: Context: Outkast better be involved in the halftime festivities at the #SuperBowl in Atlanta or else.— ashley (@aplusashley) May 25, 2016 Question: who does ashley want to be performing at super bowl atlanta? Answer: outkast

Answer: yes


Question: Context: Very important for the nation to hear @potus describe events in #Charlottesville for what they are, a terror attack by #whitesupremacists— Marco Rubio (@marcorubio) August 12, 2017 Question: where was the terror attack? Answer: charlottesville

Answer:
yes