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: Is 10lbs of snow enough? ShipSnowYo.com! ❄️ (@shipsnowyo) February 25, 2015 Question: who cancelled plans to return to akron? Answer: lebron james
Example Output: no

Example Input: 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
Example Output: yes

Example Input: Context: Thank you to everyone for their kind words. My father is doing well and we are all looking forward to spending Christmas together in Arizona. If you're feeling charitable this Christmas @HeadfortheCure or @NBTStweets to help find a cure for brain cancer is what I recommend. ❤️— Meghan McCain (@MeghanMcCain) December 17, 2017 Question: what did zimbabweans do? Answer: zimshutdown2016
Example Output:
no