<https://ninnaji.jp/news/%e7%9c%9f%e8%a8%80%e5%ae%97%e3%81%a8%e3%81%af%ef%bc%9f/houwatest/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://ninnaji.jp/news/%E7%9C%9F%E8%A8%80%E5%AE%97%E3%81%A8%E3%81%AF%EF%BC%9F/houwatest/>