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.

Q: Context: Hillary Clinton declined to comment on Trump's recent Bill Clinton attacks when I asked her today on the ropeline. Dan Merica (@danmericaCNN) December 29, 2015 Question: who declined to comment on trump's recent bill clinton attacks? Answer: hillary clinton.

A: yes
****
Q: 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

A: no
****
Q: Context: Jessica Cheung, 36, has been at Mong Kok since last night. She said the anti-occupy crowd began approaching at noon Wilfred Chan (@wilfredchan) October 3, 2014 Question: where has jessica cheung been since last night Answer: mong kok

A:
yes
****