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: I desperately want a reporter to ask Sean Spicer what he has in his teeth Alexandra Gallant (@Gallantdesigner) March 27, 2017 Question: who was the piece by? Answer: dmitriy samohin

Ex Output:
no

Ex Input:
Context: Working all the angles. Took this #selfie while investigating an area with hydrated minerals c Curiosity Rover (@MarsCuriosity) August 19, 2015 Question: what sport is creating more conspiracy theories? Answer: fifa

Ex Output:
no

Ex Input:
Context: Only Republicans are offering real solutions to help middle-class families get ahead Speaker John Boehner (@SpeakerBoehner) October 3, 2014 Question: which families need soluyions to get ahead? Answer: middle-class families

Ex Output:
yes