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.

Input: Consider Input: Context: Obama to Bernie Sanders: "You look like 37,000 donations of $27 each" #WHCD CNN Politics (@CNNPolitics) May 1, 2016 Question: who is st louis locked on? Answer: new york rangers

Output: no


Input: Consider Input: Context: I am stunned by the failure to indict Eric Garner's killer.— John Legend (@johnlegend) December 3, 2014 Question: who's going to cut this out? Answer: ya'll

Output: no


Input: Consider Input: Context: Images coming through via @savechildrenaus staff of destruction in #Haiti from #HurricaneMatthew Save the Children (@savechildrenaus) October 6, 2016 Question: who is being thanked for world class care? Answer: royal free nhs


Output: no