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: Just beat a robot at beer pong. #CES2015 #onlyinVegas Ryan Owens (@RPOwens) January 7, 2015 Question: where did ryan owens beat a robot at beer pong? Answer: las vegas

Ex Output:
yes


Ex Input:
Context: @Colt3FIVE thanks for the sweet video.... looking forward to meeting you :)— Alexandra Raisman (@Aly_Raisman) August 21, 2016 Question: what is the person looking forward to? Answer: meeting colt3five

Ex Output:
yes


Ex Input:
Context: Well, there goes my job. MT @CNNBrian: Due to cold weather, @VisitIthaca is encouraging people to visit Keys instead. VISIT FLORIDA (@VISITFLORIDA) February 16, 2015 Question: who loves and thanks you? Answer: justin bieber

Ex Output:

no