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: Flags at half mast for Whitney Houston? 4 Marines and 1 Navy serviceman assassinated by a terrorist on our soil.....nothing?— Curt Schilling (@gehrig38) July 20, 2015 Question: who is going to perform more tests? Answer: the state lab team

Output: no


Input: Consider Input: Context: Im giving everyone involved 24 hours to make it right or the world will hear how I really feel. contactually Im not allowed to speak!— Kelly Osbourne (@KellyOsbourne) February 24, 2015 Question: what is the dog's name? Answer: elka

Output: no


Input: Consider Input: Context: Liliinn Hemingway, granddaughter & grt granddaughter wait for flag removal. "It's a beautiful day in South Carolina." Nick Valencia (@CNNValencia) July 10, 2015 Question: where does the family live? Answer: south carolina


Output: yes