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: .@JohnLegend got Stevie Wonder to perform with him. Because of course. Full episode: #LipSyncBattle (@SpikeLSB) September 12, 2016 Question: what did stevie wonder do with john legend? Answer: performed with him on lip sync battle.
Example Output: yes

Example Input: Context: Here I am on the HOC terrace, yet the BBC is reporting that I am blocking JC office door! Diane Abbott MP (@HackneyAbbott) June 30, 2016 Question: when were women granted the right to vote? Answer: 1920
Example Output: no

Example Input: Context: Congrats @andy_murray & Kim for your wedding. I wish you all the best!— Rafa Nadal (@RafaelNadal) April 12, 2015 Question: what city is the central station and railway station located in? Answer: munich
Example Output:
no