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: Google puts its best designer in charge of Google Glass, its biggest design problem. Nicholas Thompson (@nxthompson) January 15, 2015 Question: who did google put in charge of google glass? Answer: tony fadell

Ex Output:
yes


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: p>My double is ready to roll in #inaug2013 parade with @nasa & @nasajpl mission team Curiosity Rover (@MarsCuriosity) January 21, 2013 Question: who are the mission team members Answer: nasa and nasajpl

Ex Output:

yes