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: To clarify, I was referring to Pres Obama's national security decisions that have led to rise of #ISIL, not to the President himself John McCain (@SenJohnMcCain) June 16, 2016 Question: who did people think john mccain was referring to? Answer: president himself

SOLUTION: yes

PROBLEM: Context: Two more nations are out of the World Cup, two more have kept their dreams alive: #CNNWorldCup CNN Football Club (@CNNFC) June 25, 2014 Question: what sport is trying to push the boundaries? Answer: vaulting

SOLUTION: no

PROBLEM: Context: Here's Jennifer Hudson singing The Beatles after the SING premiere. Mike Ryan (@mikeryan) September 11, 2016 Question: what song is jennifer hudson singing? Answer: the beatles

SOLUTION:
yes