<https://okdomov.cz/od-chaosu-k-cistote-aneb-jak-uklidit-a-nezblaznit-se/#article>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://okdomov.cz/od-chaosu-k-cistote-aneb-jak-uklidit-a-nezblaznit-se/>