_:nfe4da401e8f34e0c8f1cfeedf0ec8362xb0
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://classroom.hatenablog.com/archive/category/%E5%81%A5%E5%BA%B7%E3%83%BB%E7%BE%8E%E5%AE%B9-%E3%82%AA%E3%83%B3%E3%83%A9%E3%82%A4%E3%83%B3%E3%83%A8%E3%82%AC%E3%83%BB%E3%83%95%E3%82%A3%E3%83%83%E3%83%88%E3%83%8D%E3%82%B9>