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: Dearest Containment fans, we made 13 wonderful episodes of a powerful story. We'll make more if someone asks us, but in the meantime, enjoy! julieplec (@julieplec) May 12, 2016 Question: what percentage of flights is canceled? Answer: 30 percent.
[EX A]: no

[EX Q]: Context: 4 -- For the 1st time in @ChampionsLeague history 4 german teams lost on a matchday. Novelty. OptaFranz (@OptaFranz) November 26, 2014 Question: what did sutter do today? Answer: drug the boat.
[EX A]: no

[EX Q]: Context: When we visited the #DoctorWho studios, we shot by the back of the Tardis because the front was already like this. Tom Brevoort (@TomBrevoort) November 22, 2015 Question: is that a police booth Answer: its a funny and entertainment place
[EX A]:
yes