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: Coach k is tellin the team..."great half, but that's over now! Play like the score is 0-0. Let's have a great 2nd half!And have fun!" #Duke— Christian Laettner (@laettnerbball) April 4, 2015 Question: who is yelling now? Answer: ben

no