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.

Context: You don't have to search hard to figure out why #GoogleGlass is being retooled: Adweek (@Adweek) January 16, 2015 Question: how long was he friends with kesha? Answer: for many years.
no

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
yes

Context: "It really is a very odd business that all of us, to varying degrees, have music in our heads." -- Oliver Sacks— Carrie Brownstein (@Carrie_Rachel) August 30, 2015 Question: what do we all have in our heads? Answer: music

yes