<https://ldh-tateuri.jp/spec_home1/lp2/14a2288f-d809-47a8-b08a-2334f6abce44/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://ldh-tateuri.jp/spec_home1/lp2/14a2288f-d809-47a8-b08a-2334f6abce44/>