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 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: Every now and then i post a message with a long caption because I'm speaking from my heart. I know— Khloé (@khloekardashian) April 10, 2016 Question: where she is speaking from? Answer: her heart

Answer: yes


Question: Context: Why is does the bride price calculator discriminate against PhD holders though? Over sabi? 😂😂 — Amara Nwankpa (@bubusn) May 25, 2014 Question: what channel aired the interview? Answer: msnbc

Answer:
no