<https://sl-journal.com/tag/%e5%89%8d%e5%90%91%e3%81%8d%e3%81%ab%e3%81%aa%e3%82%8b%e6%96%b9%e6%b3%95>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://sl-journal.com/tag/%E5%89%8D%E5%90%91%E3%81%8D%E3%81%AB%E3%81%AA%E3%82%8B%E6%96%B9%E6%B3%95>