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: David Letterman announces that he will retire next year. CBS frantically looking for someone named Jimmy.— Albert Brooks (@AlbertBrooks) April 3, 2014 Question: who did vitaly tell that he would streak? Answer: his twitter followers

no