<https://sogo-e.jp/author/sogoenzai/#author>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://sogo-e.jp/items/%E3%82%B0%E3%83%AA%E3%83%9B%E3%82%A8%E3%83%BC%E3%82%B9pro/attachment/%E7%84%A1%E9%A1%8C/>