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: Just beat a robot at beer pong. #CES2015 #onlyinVegas Ryan Owens (@RPOwens) January 7, 2015 Question: where did ryan owens beat a robot at beer pong? Answer: las vegas

Output: yes

Input: Consider Input: Context: PM: "I'm delighted by the news that the Duke & Duchess of Cambridge are expecting a baby. They will make wonderful parents." #royalbaby UK Prime Minister (@Number10gov) December 3, 2012 Question: is this clothing warmer or colder? Answer: warmer

Output: no

Input: Consider Input: Context: #Gwoza: Several terrorists died while many are captured. Mopping up of entire #Gwoza and her suburbs is ongoing. More details later. DEFENCE HQ NIGERIA (@DefenceInfoNG) March 27, 2015 Question: where is mopping up happening? Answer: gwoza and her suburbs
Output: yes