<https://kbc.ac/2017/05/06/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://kbc.ac/2017/05/06/5%E6%9C%8814%E6%97%A5%E6%97%A5%E3%81%AF%E7%89%B9%E5%88%A5%E3%82%AA%E3%83%BC%E3%83%97%E3%83%B3%E3%82%AD%E3%83%A3%E3%83%B3%E3%83%91%E3%82%B9%EF%BC%81/>