<https://secure.gravatar.com/avatar/643405f9d4a02b6cd6d5ab5fcbeb4e63?s=96&amp;d=mm&amp;r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://blog.horsepilot.com/en-us/charles-international-digital-manager/>