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: 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: how good of a friend? Answer: he is a very good friend
Example Output: yes

Example Input: Context: LeBron James is returning to the Cleveland Cavaliers, a source tells uuu. @KingJames #LeBronToClev Chris Sheridan (@sheridanhoops) July 9, 2014 Question: which sources says lebron james is returning to cleveland? Answer: sheridanhoops.com
Example Output: yes

Example Input: Context: Impressive launch and @SpaceX will soon make Falcon 9 landings routine -- so good for space! Kudos SpaceX!— Jeff Bezos (@JeffBezos) January 17, 2016 Question: how executed the launch? Answer: spacex
Example Output:
yes