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: Met some of you #nolefam's yesterday. Autograph for a smile, hehe I think this exchange was in my favor. Novak Djokovic (@DjokerNole) August 14, 2014 Question: what does he think was in his favor? Answer: the exchange of autographs for a smile.
Example Output: yes

Example Input: Context: The easy thing is to be silenced because you don't want the insults. The easy thing is to look the other way when it's happening to others. J.K. Rowling (@jk_rowling) November 9, 2016 Question: where did j.k. say  it is easy to look when it is happening to others? Answer: the other way
Example Output:
yes