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: This was my 61st U.S. Open, and one of the most dominating performances. Well done, Martin Kaymer.— Dan Jenkins (@danjenkinsgd) June 15, 2014 Question: which u.s. open is it that they are referring to? Answer: the 61st

yes