<https://www.e-obento.com/%e5%ae%87%e5%ae%99%e6%97%85%e8%a1%8c%e3%80%80%e6%83%91%e6%98%9f%e3%80%80%e9%a3%be%e3%82%8a%e5%88%87%e3%82%8a%e3%80%80%e9%87%8e%e8%8f%9c/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.e-obento.com/%E5%AE%87%E5%AE%99%E6%97%85%E8%A1%8C%E3%80%80%E6%83%91%E6%98%9F%E3%80%80%E9%A3%BE%E3%82%8A%E5%88%87%E3%82%8A%E3%80%80%E9%87%8E%E8%8F%9C/>