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.

Context: Following Monday's Russian #doping allegations, do you still have trust in track and field?— CNN Sport (@cnnsport) November 10, 2015 Question: how many hours was the lucky woman stuck in the 5th floor building? Answer: 36 hours
no

Context: Mr Cohen, I would not be surprised is Hillary is somehow behind this. Clinton's play dirty tricks when desperate. californiagirl*10 (@natashalarebel) January 2, 2016 Question: who is this tweet about? Answer: hillary clinton
yes

Context: RealGM @RealGMWolves, Pistons Discuss Ricky Rubio For Reggie Jackson Trade: 2D , 2:31:15 AM Question: which teams are involved in the trade? Answer: wolves and pistons

yes