<https://tanabe.site/archives/tag/%E3%83%95%E3%82%A3%E3%83%AA%E3%83%94%E3%83%B3/#collectionpage>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://tanabe.site/archives/tag/%E3%83%95%E3%82%A3%E3%83%AA%E3%83%94%E3%83%B3>