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: 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 Output:
no

Ex Input:
Context: @Colt3FIVE thanks for the sweet video.... looking forward to meeting you :) Alexandra Raisman (@Aly_Raisman) August 21, 2016 Question: what is the person looking forward to? Answer: meeting colt3five

Ex Output:
yes

Ex Input:
Context: Tom Petty played the halftime show of the greatest Super Bowl ever Bobby Big Wheel (@BobbyBigWheel) October 2, 2017 Question: who is butchering every song? Answer: christina aguilera

Ex Output:
no