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: If Romney and Obama switched hair with their wives... #Debates Shelby White (@shelbywhite) October 17, 2012 Question: what are they switching with their wives Answer: switching hair with wives

yes