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.

Input: Consider 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

Output: yes


Input: Consider Input: Context: Philae:10 years in transitLanded on cometBounced (x2)Stuck in shadeSCIENCED ANYWAYLost powerWaitedOne month to goFOUND BY ROSETTA— Katie Mack (@AstroKatie) September 5, 2016 Question: how long did philae's journey take? Answer: 10 years.

Output: yes


Input: Consider Input: Context: And listen even if @DanielHandler is her friend, he's just made sure that the story is his racist joke, not her achievements.— Mikki Kendall (@Karnythia) November 20, 2014 Question: what is the racist joke? Answer: i can't say here


Output: yes