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: #RedCross preparing a boat loaded with tarpaulins, set to sail for Nui tomorrow #CyclonePam @Federation New Zealand RedCross (@NZRedCross) March 19, 2015 Question: what kind of products is the red cross taking to nui? Answer: tarpaulins
Example Output: yes

Example Input: Context: #Ferguson protesters spill into 101 Fwy lanes at Grand Ave, DTLA #TRAFFICALERT ABC7 Eyewitness News (@ABC7) November 26, 2014 Question: what did the rule attemp to sabotage? Answer: the affordable care act
Example Output: no

Example Input: Context: "Unfortunate many African Americans have to live knowing they can be threatened with lynching"- @RepAlGreen Brooke Baldwin (@BrookeBCNN) May 22, 2017 Question: who sometimes gets too drunk and says the wrong things? Answer: chad johnson
Example Output:
no