<https://secure.gravatar.com/avatar/5dda2f6c820b17f2b506386e8443f2a4?s=96&amp;d=mm&amp;r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://elingua.cz/blog/5-tipu-jak-na-robota-ucte-se-jazyk-s-chatgpt/>