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: Make no mistake, Obama achieved this despite DC conventional wisdom on Iran. He deserves extra credit precisely cause he didn't listen to it— Trita Parsi (@tparsi) July 14, 2015 Question: which country was mentioned in relation to obama? Answer: iran

yes