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: Prince didn't even perform tonight and he owned the Grammys. Mashable (@mashable) February 9, 2015 Question: how many refugees were stuck? Answer: 100s

Output: no


Input: Consider Input: Context: Godspeed to the heroic Iraqi forces, Kurdish #Peshmerga, and #Ninewa volunteers. We are proud to stand with you in this historic operation.— Brett McGurk (@brett_mcgurk) October 16, 2016 Question: who is mcgurk proud of? Answer: iraqui forces.

Output: yes


Input: Consider Input: Context: "I came here to present my new video, but before I do that, Imma talk." - @kanyewest#VMAshttps:// MTV (@MTV) August 29, 2016 Question: what did kanye come here to do? Answer: present his new video


Output: yes