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: Very sad to say that one of my absolute all-time heroes has just passed away. RIP Stan Freberg. A legend, an inspiration, and a friend. Al Yankovic (@alyankovic) April 7, 2015 Question: who are the albuquerque police looking for? Answer: jon jones

Ex Output:
no

Ex Input:
Context: I watched parts of @nbcsnl Saturday Night Live last night. It is a totally one-sided, biased show - nothing funny at all. Equal time for us? Donald J. Trump (@realDonaldTrump) November 20, 2016 Question: what show does donald trump think is one-sided? Answer: nbcsnl

Ex Output:
yes

Ex Input:
Context: 100s of #refugees stuck inside a train, nowhere to go. Hot, humid, tension rising. Unbearable conditions w/@arwaCNN cstreib (@cstreib) September 3, 2015 Question: how many refugees were stuck? Answer: 100s

Ex Output:
yes