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: Is 10lbs of snow enough? ShipSnowYo.com! ❄️ (@shipsnowyo) February 25, 2015 Question: who cancelled plans to return to akron? Answer: lebron james
Example Output: no

Example Input: Context: It takes immense courage to do what Zimbabweans have done today. Your fellow Africans stand with you ✊🏾 #ZimShutDown2016— Ndayi (@alainndayi) July 6, 2016 Question: what did zimbabweans do? Answer: zimshutdown2016
Example Output: yes

Example Input: Context: great test today & reveal of my new silver arrow. hope you like my #BTS shots - warm up with some push ups today. Nico Rosberg (@nico_rosberg) February 1, 2015 Question: what will kurt be sitting out of? Answer: opening ceremony
Example Output:
no