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: Obama couldn't negotiate getting a Whopper without pickles.— woodstockdave (@woodstockdave) March 27, 2015 Question: who couldn't negotiate getting a whopper without pickles? Answer: obama

yes