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.

Ex 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.

Ex Output:
yes


Ex Input:
Context: Congratulations to Roy Moore on his Republican Primary win in Alabama. Luther Strange started way back & ran a good race. Roy, WIN in Dec!— Donald J. Trump (@realDonaldTrump) September 27, 2017 Question: what did ray moore win? Answer: the republican primary in alabama

Ex Output:
yes


Ex Input:
Context: First look out at #FentyxPuma by @rihanna, as the model stomps her way down the library table cum catwalk # Elizabeth Paton (@LizziePaton) March 6, 2017 Question: what is the catwalk? Answer: a library table

Ex Output:

yes