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.

Example Input: Context: Let's break this down: APC has limited funds. PDP has CBN. APC will be bankrupted by this postponement. Part of the plan. Please donate!— Editi Effiòng (@EditiEffiong) February 8, 2015 Question: who will be bankrupted by this postponement? Answer: apc
Example Output: yes

Example Input: Context: Alright Ladies , today i am inspired the women in tech in Africa came together despite tool fails to share and collaborate #WTechAfrica— ethelcofie (@MissEDCofie) August 2, 2014 Question: who came together in africa? Answer: women in tech
Example Output: yes

Example Input: Context: Cheers to @Letterman. A king, a king-maker, and probably the man most to blame for inflicting me on America. See you soon.— Ricky Gervais (@rickygervais) April 3, 2014 Question: who sent michelle obama a letter? Answer: beyonce
Example Output:
no