<https://mypuzzleware.com/\u03C0\u03C1\u03BF\u03CA\u03CC\u03BD/archimedes-code/#product>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://mypuzzleware.com/%CF%80%CF%81%CE%BF%CF%8A%CF%8C%CE%BD/archimedes-code/>