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: You don't have to search hard to figure out why #GoogleGlass is being retooled: Adweek (@Adweek) January 16, 2015 Question: how long was he friends with kesha? Answer: for many years.

Ex Output:
no

Ex Input:
Context: Senator Bob Corker "begged" me to endorse him for re-election in Tennessee. I said "NO" and he dropped out (said he could not win without... Donald J. Trump (@realDonaldTrump) October 8, 2017 Question: what chat was this author partaking in? Answer: #cnnafrica

Ex Output:
no

Ex Input:
Context: So there was an iZOMBIE fan panel today at @DragonCon and I had no idea...so I crashed it. You guys are awesome! Rahul Kohli (@RahulKohli13) September 7, 2015 Question: which ring would look like around saturn? Answer: j1407bs

Ex Output:
no