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.

Context: #BREAKING: NYC doctor tests positive for #Ebola. Stay w/ @CNN for the latest. 80 #OutFront 1 OutFrontCNN (@OutFrontCNN) October 24, 2014 Question: who tested positive for ebola? Answer: an nyc doctor.
yes