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 Input:
Context: Friant Kern canal sends water 152 mi south of here to Bakersfield Cali. Mostly to farms. #endangeredriver John D. Sutter (@jdsutter) June 13, 2014 Question: who approved the first-ever wireless charging technology? Answer: @fcc

Ex Output:
no

Ex Input:
Context: I'm proud to stand with Gov. @mike_pence for religious liberty, and I urge Americans to do the same Ted Cruz (@tedcruz) March 31, 2015 Question: who is she trying to win against? Answer: studio head

Ex Output:
no

Ex Input:
Context: Super Eagles training session live from Porto Alegre, full house. No injury worries. #flyeaglesfly Nigeria Super Eagles (@NGSuperEagles) June 24, 2014 Question: why was super eagles in porto alegre? Answer: for training session

Ex Output:
yes