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 Q]: Context: "If anyone needs me, I'm going to be blowing cigarette smoke into a martini for the rest of the afternoon," Anna Wintour says, walking out.— Richard Lawson (@rilaws) March 21, 2014 Question: where did anna wintour say she would be blowing smoke? Answer: into a martini
[EX A]: yes

[EX Q]: Context: PM: "I'm delighted by the news that the Duke & Duchess of Cambridge are expecting a baby. They will make wonderful parents." #royalbaby— UK Prime Minister (@Number10gov) December 3, 2012 Question: is this clothing warmer or colder? Answer: warmer
[EX A]: no

[EX Q]: Context: Blake Leeper loses prosthetic leg, still finishes second. NBC Olympics (@NBCOlympics) July 2, 2016 Question: who needs to know this information? Answer: the public
[EX A]:
no