<https://community.fiverr.com/forums/topic/260820-for-clearing-the-confusion-about-fiverr-pro/#comment-1614581>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://community.fiverr.com/forums/topic/260820-for-clearing-the-confusion-about-fiverr-pro/?tab=comments#comment-1614574>