<https://sub.reeben.net/archives/category/works/%e3%83%87%e3%82%b6%e3%82%a4%e3%83%b3>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://sub.reeben.net/archives/category/works/%E3%83%87%E3%82%B6%E3%82%A4%E3%83%B3>