<https://csi-slab.com/#listItem>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://csi-slab.com/%E3%82%BB%E3%83%9F%E3%83%8A%E3%83%BC%E5%8B%95%E7%94%BB/03%E7%9B%B8%E7%B6%9A%E8%A8%BA%E6%96%AD_%E5%8E%9F%E7%A8%BF/>