<https://google.com/article>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://navi.tenji.tv/%E4%BB%8A%E5%BE%8C%E3%81%AE%E3%80%8C%E3%83%8F%E3%82%A4%E3%83%96%E3%83%AA%E3%83%83%E3%83%89%E3%80%8D%E3%81%AE%E5%B1%95%E7%A4%BA%E4%BC%9A%E3%81%A8%E3%81%AF%EF%BC%9A%E3%83%AA%E3%82%A2%E3%83%AB%E3%81%AE/>