Definition: 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: Context: I wish @CharlieSheen and his family the best. With the advancement in treatments and medicine he can fight this disease and live a long life— Earvin Magic Johnson (@MagicJohnson) November 17, 2015 Question: what letters are there with this playoff system? Answer: "b" and "s".

no