<https://forum.respecta.net/topic/19679-%D1%81%D0%B5%D1%80%D0%B8%D0%B0%D0%BB%D1%8B/page/47/#comment-837812>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://forum.respecta.net/topic/19679-%D1%81%D0%B5%D1%80%D0%B8%D0%B0%D0%BB%D1%8B/page/47/>