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: Environmental Racism + Indifference = Lead in the Water & Blood...The Poisoning of Flint's Water 0 #FlintWaterCrisis— Cornell Brooks (@CornellWBrooks) January 24, 2016 Question: what city is mr. brooks talking about? Answer: flint, mi

Ex Output:
yes


Ex Input:
Context: Non-fasting training Day 2 #GutsHeartGlory these girls are working hard @AmbreenSadiq going for it Common Wealth (@Common_WealthHQ) August 1, 2014 Question: how many us presidents did he take a selfie with? Answer: three

Ex Output:
no


Ex Input:
Context: "To win the Arc is the dream of Japan" says Yuichi Fukunaga, the jockey of Just A Way #QPAT France Galop (@francegalop) October 1, 2014 Question: where was mariah carey's performance at? Answer: rockerfeller

Ex Output:

no