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: .@SenSchumer- do it over a donut and coffee. Dan Scavino Jr. (@DanScavino) March 3, 2017 Question: what did pres -elect trump said about nato ? Answer: nato is obsolete

no