<https://pleasure-space.info/2020/12/06/%e3%83%94%e3%83%b3%e3%82%af%e3%82%bc%e3%83%aa%e3%83%bc-%e6%88%90%e5%88%86/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://pleasure-space.info/2020/12/06/%E3%83%94%E3%83%B3%E3%82%AF%E3%82%BC%E3%83%AA%E3%83%BC-%E6%88%90%E5%88%86/>