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: how long did philae's journey take? Answer: 10 years.
[EX A]: yes

[EX Q]: Context: Anyone with questions about what Cosby did should watch this video. Judd Apatow (@JuddApatow) July 7, 2015 Question: what they won't truly see again? Answer: they won't see like his again.
[EX A]: no

[EX Q]: Context: #Munich Central Station and the railway station Pasing are meanwhile open again. We will remain on site and keep our eyes open.— Polizei München (@PolizeiMuenchen) January 1, 2016 Question: what city is the central station and railway station located in? Answer: munich
[EX A]:
yes