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: Scary moment we #CHI fans just broke down a barrier and stormed stadium. Sam Laird (@samcmlaird) June 18, 2014 Question: what state had an occurrence with a skywriter? Answer: iowa

Ex Output:
no


Ex Input:
Context: Nobody can deny @realDonaldTrump uncovered a 14 year long 9/11 cover-up re: celebrations on Jersey City rooftops. — Daniel Scavino Jr. (@DanScavino) December 2, 2015 Question: who uncovered a 14-year long 9/11 cover-up? Answer: donald trump

Ex Output:
yes


Ex Input:
Context: People trapped inside home. I've seen 5 people pulled so far. I'm in the Rochelle area, path of tornado @13WREX Lindsey Clark (@LindseyClarkk) April 10, 2015 Question: how many firearms discovered this week were loaded? Answer: 30

Ex Output:

no