<https://acadlogist.ru/video/lektsiya-63-stolbtsy-markery-otstupy-i-bukvitsa/#website>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://acadlogist.ru/video/lektsiya-63-stolbtsy-markery-otstupy-i-bukvitsa/>