<https://hr.mospesh.com/473-po-origin-of-the-print-how-it-became-a-classic-and-how-to-use-it>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://hr.mospesh.com/473-po-origin-of-the-print-how-it-became-a-classic-and-how-to-use-it>