TASK DEFINITION: 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.
PROBLEM: Context: Brett McMurphy @McMurphyESPNAfter 2nd year of 4-year deal, Camping World ends its naming rights sponsorship w/Independence Bowl, Shreveport Times reports1/20/2017, 10:17:53 PM Question: how long was the deal supposed to last? Answer: it was a 4-year deal.

SOLUTION: yes

PROBLEM: Context: The results are in. Unfettered free trade has been a disaster for working Americans. It is high time we ended our disastrous trade policies.— Bernie Sanders (@SenSanders) August 24, 2015 Question: who is trade a disaster for? Answer: working americans

SOLUTION: yes

PROBLEM: Context: What an amazing week @WTAFinalsSG Thanks Singapore,I just loved being here and I already feel home @yoursingapore!See you again in December!— Serena Williams (@serenawilliams) October 26, 2014 Question: when will serena williams be back to singapore Answer: in december

SOLUTION:
yes