<https://45soku.com/#articleImage>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://45soku.com/blog/2019/10/01/%E5%90%8C%E4%BA%BA-%E8%A7%A6%E6%89%8B%E3%81%AB%E3%82%88%E3%82%8B%E5%BF%AB%E6%A5%BD%E8%B2%AC%E3%82%81%E3%81%A7%E5%A0%95%E3%81%A1%E3%81%9F%E6%AD%A3%E7%BE%A9%E3%81%AE%E3%83%92%E3%83%AD%E3%82%A4%E3%83%B3/>