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: 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

Ex Output:
yes


Ex Input:
Context: Melania Trump says she wishes her husband would use nicer language — sometimes #TrumpFamily CNN Politics (@CNNPolitics) April 13, 2016 Question: melania trump wishes who would use nicer language? Answer: her husband.

Ex Output:
yes


Ex Input:
Context: You don't have to search hard to figure out why #GoogleGlass is being retooled: Adweek (@Adweek) January 16, 2015 Question: who passed away recently? Answer: simone

Ex Output:

no