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: Thankful to be alive, full of admiration for the way Kenyan citizens responded, but concerned re ongoing terrorist threat. #Westgate6Months Sarah Holmes (@holmespest) March 20, 2014 Question: what team is lbj leaning towards? Answer: heat

Ex Output:
no

Ex Input:
Context: #vanessahicks is an #American who understands the heart&soul of our #Soldiers .She captured that in the most beautiful way! #flagbaby #USA Tammy Motola (@tmotola) March 12, 2015 Question: whose heart and soul is understood? Answer: soldiers

Ex Output:
yes

Ex Input:
Context: >@cnn @cnnhealth because we are an obese nation, full of addicts to drugs and alcohol who only crave more. #didn'tneedtoreadit NGSiegel (@NGSiegel) January 10, 2013 Question: what is the nation full of? Answer: addicts to drugs and alcohol

Ex Output:
yes