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: CBS teases a Charlie Sheen return - and builds the episode around his character - and he doesn't. So lame. #TwoAndAHalfMenFinale— Brian Cantor (@cantorpedia) February 20, 2015 Question: what did they build the episode around? Answer: his character

Ex Output:
yes


Ex Input:
Context: Gutted at such a sad end to an era. We're all three of us idiots in our different ways but it's been an incredible ride together.— Richard Hammond (@RichardHammond) March 25, 2015 Question: what declaration has been made by police in emancipation park in charlottesville? Answer: unlawful assembly

Ex Output:
no


Ex Input:
Context: Muhammad Ali is dead at 74! A truly great champion and a wonderful guy. He will be missed by all!— Donald J. Trump (@realDonaldTrump) June 4, 2016 Question: what did alan p gross miss in cuba? Answer: bagel y lox

Ex Output:

no