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.

Example Input: Context: #PLL guy Toby (@KeeganAllen) says he deserves Spencer (@SleepintheGardn): true love. Yeah, get wins # USA TODAY Life (@usatodaylife) June 16, 2016 Question: who says he deserves spencer? Answer: toby
Example Output: yes

Example Input: Context: Non-fasting training Day 2 #GutsHeartGlory these girls are working hard @AmbreenSadiq going for it Common Wealth (@Common_WealthHQ) August 1, 2014 Question: how many us presidents did he take a selfie with? Answer: three
Example Output: no

Example Input: Context: It happens to the best of us @ Jessica Simpson (@JessicaSimpson) July 9, 2017 Question: what is the best to us? Answer: whole foods
Example Output:
yes