<https://www.vitalia.cz/clanky/jak-prospiva-stava-z-cervene-repy-a-na-co-si-dat-pozor/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.vitalia.cz/clanky/jak-prospiva-stava-z-cervene-repy-a-na-co-si-dat-pozor/>