<https://www.tochi-ad.info/%ef%bc%92%e6%9c%88%e5%ae%9a%e4%be%8b%e4%bc%9a%e9%96%8b%e5%82%ac/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.tochi-ad.info/%EF%BC%92%E6%9C%88%E5%AE%9A%E4%BE%8B%E4%BC%9A%E9%96%8B%E5%82%AC/>