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: @AsteroidWatch @Jayk47246171 I'm glad you guys posted this. Hopefully this helps calm a lot of people down. Thank you for posting it!— Miss_CMW (@CMW_89) August 20, 2015 Question: what has become of niagra falls? Answer: it became frozen

no