<https://acadstudent.ru/\u043F\u0440\u043E\u0444\u0438\u043B\u044C/ivan-radkov/#website>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://acadstudent.ru/%D0%BF%D1%80%D0%BE%D1%84%D0%B8%D0%BB%D1%8C/ivan-radkov/>