<https://www.nekocafe-oita.com/2018/02/03/%e3%81%ad%e3%81%93%e3%81%a3%e3%81%a1%e3%82%b9%e3%82%bf%e3%83%b3%e3%83%97%e7%99%ba%e5%a3%b2%e3%81%95%e3%82%8c%e3%81%be%e3%81%97%e3%81%9f%e3%83%bc/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.nekocafe-oita.com/2018/02/03/%E3%81%AD%E3%81%93%E3%81%A3%E3%81%A1%E3%82%B9%E3%82%BF%E3%83%B3%E3%83%97%E7%99%BA%E5%A3%B2%E3%81%95%E3%82%8C%E3%81%BE%E3%81%97%E3%81%9F%E3%83%BC/>