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: Mirka and I are so incredibly happy to share that Leo and Lenny were born this evening! #TwinsAgain #Miracle— Roger Federer (@rogerfederer) May 6, 2014 Question: who is report the soldier is dead? Answer: official sources

Ex Output:
no


Ex Input:
Context: Kurt Helin @basketballtalkAndre Iguodala: Jealous media tries to make players ‘feel less than what we are’ , 9:12:10 PM Question: how much snow fell in boone, nc? Answer: 2-3 inches

Ex Output:
no


Ex Input:
Context: RT @Atlanta_Traffic: Traffic NOT MOVING on I-75 in spots btwn #Acworth & #Cartersville HEAVY snow, major crashes NWS Atlanta (@NWSAtlanta) February 25, 2015 Question: why is the traffic not moving? Answer: a large amount of snow.

Ex Output:

yes