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.

Q: 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

A: yes
****
Q: Context: I have cerebral palsy #iamapreexistingcondition I deserve health care— Casey Green (@caseylgreen09) May 4, 2017 Question: what is it that casey has? Answer: cerebral palsy

A: yes
****
Q: Context: I bought the new @fitbit Red Flex for my mom for her birthday and Mother's Day! I hope that she likes it (and figures out how to use it).— Jacqueline Geller (@jacquelinesg) May 5, 2014 Question: to which family does adrian peterson's heart go out to? Answer: the martin family

A:
no
****