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: 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: As President I wanted to share with Russia (at an openly scheduled W.H. meeting) which I have the absolute right to do, facts pertaining....— Donald J. Trump (@realDonaldTrump) May 16, 2017 Question: who posted nude photos? Answer: selena gomez

Ex Output:
no


Ex Input:
Context: Those who've read These Are The Voyages know Grace Lee Whitney, who's died, had a hellish time. She made her good life herself, later. RIP.— Paul_Cornell (@Paul_Cornell) May 4, 2015 Question: who knows what shoes they're going to put them in? Answer: the lord

Ex Output:

no