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: My mom bought new conditioner and it sucks it isn't even conditioning my hair I blame obama— DONT FOLLOW (@heatherfarley98) August 5, 2013 Question: what time does the show start? Answer: 7pm est
Example Output: no

Example Input: Context: #SackClarkson #SackJeremyClarkson #BBC If you hit someone at work you should be fired - period @JeremyClarkson @BBC— Pete Lewis (@iampetelewis) March 11, 2015 Question: who came together in africa? Answer: women in tech
Example Output: no

Example Input: Context: Brave, outspoken & humanitarian who played Helen Keller in "Miracle Worker," Oscar winner Patty Duke passed. I will miss her. RIP.— Marlee Matlin (@MarleeMatlin) March 29, 2016 Question: how often does this happen Answer: 150 years ago
Example Output:
no