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: 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: "Today I was in a real zone," says #Petkovic. "I stepped up my game when I needed to. That gives me confidence" #RG14 Roland Garros (@rolandgarros) June 4, 2014 Question: who is steve lukather's brother? Answer: mike porcaro

SOLUTION: no

PROBLEM: Context: Alright Ladies , today i am inspired the women in tech in Africa came together despite tool fails to share and collaborate #WTechAfrica— ethelcofie (@MissEDCofie) August 2, 2014 Question: what did the women in tech in africa do? Answer: come together to share and collaborate

SOLUTION:
yes