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: Flags at half mast for Whitney Houston? 4 Marines and 1 Navy serviceman assassinated by a terrorist on our soil.....nothing?— Curt Schilling (@gehrig38) July 20, 2015 Question: who is going to perform more tests? Answer: the state lab team

Ex Output:
no


Ex Input:
Context: Two more nations are out of the World Cup, two more have kept their dreams alive: #CNNWorldCup CNN Football Club (@CNNFC) June 25, 2014 Question: what sport is trying to push the boundaries? Answer: vaulting

Ex Output:
no


Ex Input:
Context: So honored to be a part of a special group continuing to grow the game of soccer in LA and beyond. @LAFC #LAFC2017 Mia Hamm (@MiaHamm) October 30, 2014 Question: where is mia hamm helping soccar grow? Answer: in las angeles and beyond.

Ex Output:

yes