_:n7ee88a76703a410eb353a1d33d06edc1xb1
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://maehrm.hatenablog.com/archive/category/%E6%83%85%E5%A0%B1%E5%87%A6%E7%90%86%E6%8A%80%E8%A1%93%E8%80%85%E8%A9%A6%E9%A8%93>