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: Australia is a continent divided! After last night's episode, they are unable to decide between hashtags #TonyDumbDumb and #TonyDumDum. Last Week Tonight (@LastWeekTonight) June 2, 2014 Question: when will they talk about nfl's? Answer: tomorrow

Ex Output:
no

Ex Input:
Context: #Presidentialselfiegirls got #10 last night Martin O'Malley - got to catch them all #nhpolitics Wendy E.N Thomas (@WendyENThomas) July 9, 2015 Question: who got to see it? Answer: martin o'malley

Ex Output:
yes

Ex Input:
Context: FACTS you need to know about the "Largest Sewage Spill in a Decade" #SanDiego #Tijuana #cleanwaternow #sewagespill! WILDCOAST (@WILDCOAST) March 2, 2017 Question: what sporting event has a tv deal? Answer: fox world cup

Ex Output:
no