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: Imagine Cheryl ordering a pizza. Calls 2 separate places, tells one the address and the other the toppings. Goes hungry. #CherylsBirthday— Ted Laking (@YukonTeddy) April 15, 2015 Question: who calls 2 pizza places? Answer: cheryl
[EX A]: yes

[EX Q]: Context: Had a very #healthylunch today. The apple definitely made up for the "mystery mush" #ThanksMichelleObama Hunter Whitney (@huntwhitney4) November 13, 2014 Question: what meal did hunter have? Answer: lunch
[EX A]: yes

[EX Q]: Context: Dragging this little watercraft across the dry riverbed to prove navigability. That work @agleader? :) cc @riverkatz John D. Sutter (@jdsutter) June 20, 2014 Question: who got a selfie with hillary Answer: kim kardashian
[EX A]:
no