<https://www.rom-room.ru/staty/215-aktsii-khostelov-kak-uznat-ob-aktsiyakh-i-spetspredlozheniyakh-khostela/#webpage>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.rom-room.ru/staty/215-aktsii-khostelov-kak-uznat-ob-aktsiyakh-i-spetspredlozheniyakh-khostela/>