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: Katy Perry rocking the Wii safety strap during the halftime show. #SuperBowl Funny Or Die (@funnyordie) February 2, 2015 Question: who was wearing a safety strap? Answer: katy perry
[EX A]: yes

[EX Q]: Context: Loved meeting everyone today! Best fans on the planet! #GilmoreGirls#LukeDanes#LukesDiner#ScottPatterson# Scott G. Patterson (@ScottGPatterson) October 5, 2016 Question: what show was he on? Answer: gilmore girls
[EX A]: yes

[EX Q]: Context: Happy Pi Day!!!! Take some time to check out all of its properties and the amazing things it's involved in. My favorite is Euler's identity.— John Urschel (@MathMeetsFball) March 14, 2015 Question: what does tia claim s he was doing? Answer: she claims she was slouching a lil.
[EX A]:
no