<https://yotuba-law.com/roudou/%e4%b8%8d%e5%bd%93%e8%a7%a3%e9%9b%87/#primaryimage>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://yotuba-law.com/roudou/%e4%b8%8d%e5%bd%93%e8%a7%a3%e9%9b%87/>