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 Q]: Context: In India getting ready to sail with Nashwa tomorrow from Mumbai to Muscat. Have had amazing help from our driver. Hilary Lister (@HilaryLister) March 10, 2014 Question: who is the subject of her tweet? Answer: nelson mandela dying.
[EX A]: no

[EX Q]: Context: Had a very #healthylunch today. The apple definitely made up for the "mystery mush" #ThanksMichelleObama Hunter Whitney (@huntwhitney4) November 13, 2014 Question: what meal did hunter have? Answer: lunch
[EX A]: yes

[EX Q]: Context: ESPN FC @ESPNFCArturo Vidal saved Bayern against entrenched Bundesliga bottom-feeders Ingolstadt. Player Ratings:… , 7:56:00 AM Question: demand what by any means necessary? Answer: the truth
[EX A]:
no