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: Oops, Bradlee! Can hear Ben yelling now, "You White House clowns never get it right!" What a wonderful man.— David Gergen (@David_Gergen) October 22, 2014 Question: who is yelling now? Answer: ben
Example Output: yes

Example Input: Context: Breaking: Huge explosions shook the city in what might be the beginning of US airstrikes on ISIS HQs in Raqqa— Abdulkader Hariri (@3bdUlkaed6r) September 23, 2014 Question: this tweet is not viewable Answer: this tweet is not viewable
Example Output: no

Example Input: Context: I didn't rape Kesha and I have never had sex with her. Kesha and I were friends for many years and she was like my little sister.— Dr. Luke Doctor Luke (@TheDoctorLuke) February 22, 2016 Question: how long was he friends with kesha? Answer: for many years.
Example Output:
yes