<https://verify-gamble.com/24boat/%e3%83%89%e3%83%a1%e3%82%a4%e3%83%b3%e5%8f%96%e5%be%97%e6%97%a5-6/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://verify-gamble.com/24boat/%E3%83%89%E3%83%A1%E3%82%A4%E3%83%B3%E5%8F%96%E5%BE%97%E6%97%A5-6/>