<https://econet.ru/articles/kak-ubrat-zhivot-5-uprazhneniy-kotorye-bystro-reshat-problemu>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://econet.ru/articles/kak-ubrat-zhivot-5-uprazhneniy-kotorye-bystro-reshat-problemu>