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: Katy Perry rocking the Wii safety strap during the halftime show. #SuperBowl Funny Or Die (@funnyordie) February 2, 2015 Question: who was wearing a safety strap? Answer: katy perry
Example Output: yes

Example Input: Context: Caitlyn Jenner takes NYC by storm Page Six (@PageSix) June 30, 2015 Question: who is she proud of? Answer: bruce, her dad.
Example Output: no

Example Input: Context: Why Rihanna look like the pink pacman ghost Genesis (@geny_tals) February 9, 2015 Question: how many videos did huma post? Answer: four
Example Output:
no