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: Almost 2/3 of American mothers say they would prefer a Mother's Day gift that helps someone else: Would yours?— World Vision USA (@WorldVisionUSA) May 7, 2014 Question: what role did carrie fisher play in the movie star was? Answer: carrie fisher played princess leia.
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: We did it, Cleveland. #NBAChampions | #OneForTheLand Cleveland Cavaliers (@cavs) June 20, 2016 Question: who are the nba champions? Answer: cleveland
Example Output:
yes