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: You can see the angry crowd grow around the pro-Officer Darren Wilson supporters in #Ferguson. Eliott C. McLaughlin (@EliottCNN) August 21, 2014 Question: where is this angry crowd? Answer: ferguson

A: yes
****
Q: Context: Why should you recycle coffee grounds? Watch, Share, Get in touch! #poweredbycoffee this #WorldEnvironmentDay ! bio-bean® (@Bio_Bean_UK) 5 June 2016 Question: how many times can the grounds be recycled? Answer: best results are no more than 3xs.

A: yes
****
Q: Context: Rat On Mars In NASA Photo at Rover, Lizard Or Rodent, May 2013. UFO Sighting News. #lunch Captain (@Uredda) August 7, 2015 Question: what type of animal has been spotted on mars? Answer: a rat

A:
yes
****