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: 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: Today we honor Martin Luther King and rededicate ourselves to all he stood for mia farrow (@MiaFarrow) January 20, 2014 Question: what d o we rededicate ourselves to? Answer: all he stood for
Example Output: yes

Example Input: Context: I imagine somewhere Cantor is backslapping the #GOP Leadership saying, "good luck with this guys."— Luke Russert (@LukeRussert) July 31, 2014 Question: what's the name of the man that resigned from presidents manufacturing council? Answer: ken frazier
Example Output:
no