<https://niji-ero.net/%e4%bd%9c%e5%93%81%e5%88%a5_%e3%82%ad%e3%83%a3%e3%83%a9%e5%88%a5/%e3%81%b5/ff/60103/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://niji-ero.net/%E4%BD%9C%E5%93%81%E5%88%A5_%E3%82%AD%E3%83%A3%E3%83%A9%E5%88%A5/%E3%81%B5/ff/60103/>