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: This is what #airpollution looks like. #DelhiSmog today. Smell of burning in the air. Getting that choking feeling. #delhipollution Manimugdha Sharma (@quizzicalguy) November 5, 2016 Question: what city is the poster referring to? Answer: delhi
Example Output: yes

Example Input: Context: Kim was a friend, he taught me so much. I am very sad.— Joan Jett (@joanjett) January 16, 2015 Question: why does she wear shorts? Answer: she was groped
Example Output: no

Example Input: Context: A senior @OfficialOAFC source has confirmed the Evans deal is off but denies chairman Simon Corney has quit.— Ben Rumsby (@ben_rumsby) January 8, 2015 Question: what deal is off? Answer: the evans deal has been called off.
Example Output:
yes