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: From backflips to @Koreanfan_KC, there's been magic brewing in Kansas City all year long: MLB (@MLB) October 9, 2014 Question: who was part of the magic brewing in kansas city Answer: koreanfan_kc
Example Output: yes

Example Input: Context: Plugged in source says 90 percent chance @KingJames returns to #Cavs, & it'll be announced on 0: Chris Sheridan (@sheridanhoops) July 8, 2014 Question: which site will announce if king james is returning to the cavs? Answer: lebronjames.com
Example Output: yes

Example Input: Context: Billy Horschel didn't miss too many targets on Thursday at East Lake. @playofffinale PGA TOUR (@PGATOUR) September 11, 2014 Question: who's is this golfer? Answer: billy horschel
Example Output:
yes