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: I just talked to my mother in #Tehran. She was crying out of joy. Prayed for all youths, for Iran & all of us. Bless my mother! #IranDeal— CameliaEntekhabifard (@CameliaFard) July 14, 2015 Question: why was mother crying Answer: out of joy

Ex Output:
yes


Ex Input:
Context: #AFCON2015: Eq. Guinea sanctioned following Match 30 Ghana-Equatorial Guinea incidents -- Full Statement: CAF MEDIA (@CAF_Media) February 6, 2015 Question: what was the name of the incidents that caused the sanction? Answer: match 30 ghana-equatorial guinea incident

Ex Output:
yes


Ex Input:
Context: In 30 minutes, as a show of power, @taylorswift13 will blot out the sun.— Joseph Kahn (@JosephKahn) August 21, 2017 Question: what will taylor swift blot out Answer: the sun

Ex Output:

yes