<https://shiotakenzai.com/#organization>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://shiotakenzai.com/blog/%E7%A8%B2%E6%B2%A2%E5%B8%82%E5%BA%97%E8%88%97%E5%86%85%E8%A3%85%E8%A6%8B%E7%A9%8D/>