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: 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
Example Output: no

Example Input: Context: God bless the Khan's who said what so many of us want to say. God bless them and their son. #DNCinPHL— Suhaib Webb (@ImamSuhaibWebb) July 29, 2016 Question: where did frances mcdormand give his speech? Answer: the golden globes
Example Output: no

Example Input: Context: Great proof of how sport can unite the nation. It is a day of crucial decisions in Parliament. Hope the power of sport help to find unity.— Sergey Bubka (@sergey_bubka) February 21, 2014 Question: what is crucial today? Answer: decisions in parliament
Example Output:
yes