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: Rest in Peace @starwars legend #KennyBaker - whose name I learned at age 7 because he brought #R2D2 to life. Feels like losing family... KevinSmith (@ThatKevinSmith) August 13, 2016 Question: in what state of mind was christopher cross in, upon waking up? Answer: shock
[EX A]: no

[EX Q]: Context: Google puts its best designer in charge of Google Glass, its biggest design problem. Nicholas Thompson (@nxthompson) January 15, 2015 Question: who did google put in charge of google glass? Answer: tony fadell
[EX A]: yes

[EX Q]: Context: I'm now sitting behind @emrata and she is going to town on the PB & J. # Amy Kaufman (@AmyKinLA) September 19, 2016 Question: what is em rata eating? Answer: a pb & j
[EX A]:
yes