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.
--------
Question: Context: Met some of you #nolefam's yesterday. Autograph for a smile, hehe I think this exchange was in my favor. Novak Djokovic (@DjokerNole) August 14, 2014 Question: what does he think was in his favor? Answer: the exchange of autographs for a smile.

Answer: yes


Question: Context: CURRENT FRENCH TOAST ALERT LEVEL: SEVERE -- #fb— French Toast Alert (@FrenchToastAlrt) January 25, 2015 Question: why did presley want people to calm down? Answer: they were in midst of negotiations

Answer: no


Question: 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 month was this tweet posted? Answer: january

Answer:
yes