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: Although if we're honest, the Blair's Christmas card is still better than last year's effort Dean Burnett (@garwboy) December 1, 2014 Question: who decided to allow legal marriage for gays? Answer: the 4th circuit.
[EX A]: no

[EX Q]: Context: This is what #airpollution looks like. #DelhiSmog today. Smell of burning in the air. Getting that choking feeling. #delhipollution Manimugdha Sharma (@quizzicalguy) November 5, 2016 Question: what city is the poster referring to? Answer: delhi
[EX A]: yes

[EX Q]: Context: It's time to say STOP. Here's my #FlyToFreedom pledge. What's yours? I nominate @amandahoh and @jesstapp to join me! Lauren Moorhouse (@LaurenMoorhouse) October 21, 2015 Question: what does she think this looks like up close? Answer: a plane and an oil slick.
[EX A]:
no