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: Happy Birthday Nelson Mandela. You teach us tolerance, forgiveness and simple kindness. #Saint— Kim Engelbrecht (@kimengelbrecht) July 18, 2012 Question: whose's birthday is it? Answer: nelson mandela

Answer: yes


Question: Context: Nick Offerman salvaged the wood from the Parks and Rec set and made us all canoe paddles with it. World champion. Ken Tremendous (@KenTremendous) March 21, 2016 Question: what kind of helpline does jay sean need? Answer: breaking bad helpline

Answer: no


Question: Context: #YesAllWomen b/c not returning someone's feelings, or as society calls it putting them in the "friend zone", should not make me feel guilty— Business Sam (@Sam_Slagle) May 25, 2014 Question: who is providing space station updates? Answer: nasa

Answer:
no