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: When you walk down the street and see your ex 9GAG (@9GAG) February 2, 2015 Question: who posted this tweet with this picture? Answer: 9gag
Example Output: yes

Example Input: Context: @ErrolCNN @Mucheru @GoogleAfrica was a great match @ErrolCNN glad to have won. Think it was home advantage. Re-match in Atlanta 2015 :-) ...— Joe Mucheru (@mucheru) May 18, 2012 Question: what is mark geragos hoping this person he doesn't know will accept? Answer: the defamation lawsuit he files
Example Output: no

Example Input: Context: Bruce Feldman @BruceFeldmanCFBOur @FoxSports report on some key staff moves at #UCLA & #Cal this AM as Bruins to try to jolt No. 127 run game: , 4:03:58 PM Question: what city is mr. brooks talking about? Answer: flint, mi
Example Output:
no