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.

Input: Consider Input: Context: 4 -- For the 1st time in @ChampionsLeague history 4 german teams lost on a matchday. Novelty. OptaFranz (@OptaFranz) November 26, 2014 Question: what did sutter do today? Answer: drug the boat.

Output: no

Input: Consider Input: Context: Delta continues with class. Stuck due to weather and the crew ordered everyone pizza. #deltaairlines Bill Wittenmyer (@BillyTheKidWitt) May 26, 2015 Question: what is appalling to diana b? Answer: kim kardashian looking like jackie o

Output: no

Input: Consider Input: Context: I met this sweet, generous & brilliant man Robin Williams in 1991. Here we are with HIS idol Jonathan Winters. #RIP Kathy Griffin (@kathygriffin) August 11, 2014 Question: who did kathy griffin meet in 1991? Answer: robin williams
Output: yes