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: Niagra Falls has frozen over. Next: Hell. Cheese Alone (@cheesenomad) February 18, 2015 Question: why did people call the phoenix police and dispacth center? Answer: to express support

no