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: Philae:10 years in transitLanded on cometBounced (x2)Stuck in shadeSCIENCED ANYWAYLost powerWaitedOne month to goFOUND BY ROSETTA Katie Mack (@AstroKatie) September 5, 2016 Question: who gives him strength? Answer: loved ones
[EX A]: no

[EX Q]: Context: PM: "I'm delighted by the news that the Duke & Duchess of Cambridge are expecting a baby. They will make wonderful parents." #royalbaby UK Prime Minister (@Number10gov) December 3, 2012 Question: is this clothing warmer or colder? Answer: warmer
[EX A]: no

[EX Q]: Context: Why hate on Gwyneth Paltrow when she says things like she'd rather smoke crack than eat cheese? More cheese for us!Less crack tho. Brianne Kohl (@BrianneKohl) April 12, 2016 Question: what does gwyneth paltrow say she would rather smoke? Answer: crack
[EX A]:
yes