<https://wkdq.com/new-orange-and-green-dots-on-your-iphone-that-you-need-to-know-about/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://talk1470.com/new-orange-and-green-dots-on-your-iphone-that-you-need-to-know-about/>