<https://conf.nitforyou.com/mezhdunarodnyj-onlajn-marafon-po-problemam-izucheniya-russkogo-yazyka/#webpage>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://conf.nitforyou.com/mezhdunarodnyj-onlajn-marafon-po-problemam-izucheniya-russkogo-yazyka/>