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.

Input: Consider Input: Context: #EbolaQandA My mom is flying into Love Field on Sat. Should she be concerned about catching Ebola? Blackhorse (@RoscoeTheHorse) October 1, 2014 Question: what business was miss cleo in? Answer: phone psychic

Output: no

Input: Consider Input: Context: I'm all about that base. Reached the base layer of Mt Sharp. New science ahead! Curiosity Rover (@MarsCuriosity) September 11, 2014 Question: what is the tweeter all about? Answer: the base

Output: yes

Input: Consider Input: Context: Y'all made me work harder. Thank you. Cole Netten (@swollnetten) January 11, 2017 Question: who is being blamed for the attack? Answer: al shabaab
Output: no