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: Here's my 1 cents. I REALLY hope Chris Rock does NOT pull out of the Oscar hosting gig. It's so important that he's on the mic that nite. 🃏— Arsenio Hall (@ArsenioHall) January 20, 2016 Question: who did swizz beatz have a phone call with? Answer: dmx

Ex Output:
no


Ex Input:
Context: "I'm my opinion the firearm shown in the surveillance stills is a glock pistol" witness testifies @susancandiotti Lawrence Crook (@LawrenceCNN) March 11, 2015 Question: who brought down the house at the super bowl party? Answer: macklemore

Ex Output:
no


Ex Input:
Context: #CHILE fans break through security checkpoint & storm into stadium via pressroom #Chile VS #Spain #worldcup2014— Gustavo (@gustavocnn) June 18, 2014 Question: who are the competing countries in this tweet's worldcup? Answer: spain and chile.

Ex Output:

yes