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: 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

Ex Output:
no


Ex Input:
Context: All of the doctors fighting over who would deliver Beyoncé's twins 😂 Javon (@jay__papi) June 14, 2017 Question: which emoji is being used? Answer: the dancer

Ex Output:
no


Ex Input:
Context: Steven Gerrard confirms he will move to the USA this summer. Watch exclusive interview at 5pm on @LFCTV and LFCTV GO Liverpool FC (@LFC) January 3, 2015 Question: what are his kids learning about? Answer: charles darwin

Ex Output:

no