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: LeBron James is returning to the Cleveland Cavaliers, a source tells uuu. @KingJames #LeBronToClev Chris Sheridan (@sheridanhoops) July 9, 2014 Question: which sources says lebron james is returning to cleveland? Answer: sheridanhoops.com

Ex Output:
yes

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: #AaronHernandez AARON SHOW NO REACTION ; VICTIM'S MOM CRIES, pumps her fists in air quietly, saying yes. fiance and mom of of AH weep susan candiotti cnn (@susancandiotti) April 15, 2015 Question: who showed no reaction? Answer: aaron hernandez

Ex Output:
yes