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: Consider Input: Context: To clarify, I was referring to Pres Obama's national security decisions that have led to rise of #ISIL, not to the President himself— John McCain (@SenJohnMcCain) June 16, 2016 Question: who did people think john mccain was referring to? Answer: president himself

Output: yes


Input: Consider Input: Context: #RedCross preparing a boat loaded with tarpaulins, set to sail for Nui tomorrow #CyclonePam @Federation New Zealand RedCross (@NZRedCross) March 19, 2015 Question: what kind of products is the red cross taking to nui? Answer: tarpaulins

Output: yes


Input: Consider Input: Context: "The truth ... is that Jonathan Martin was never bullied by Richie Incognito or any member of the Dolphins Offensive line."— Tom Pelissero (@TomPelissero) February 14, 2014 Question: who  was not bullied by richie incognito? Answer: jonathan martin


Output: yes