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: #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

Ex Output:
no


Ex Input:
Context: Few people could get diagnosed with cancer and immediately think of others instead of themselves.Julia Louis-Dreyfus is such a powerhouse. Adam Best (@adamcbest) September 28, 2017 Question: what is iggy azalea ready with? Answer: her music

Ex Output:
no


Ex Input:
Context: who wants to chill? Maybe do Journey on some karaoke together?? — Clint Gresham (@Gresh49) February 3, 2014 Question: what band does @gresh49 want to karaoke? Answer: journey

Ex Output:

yes