<https://www.designbase-coltd.com/post/\u8077\u4EBA\u3055\u3093\uFF08\u6D77\u5357-\u6574\u9AA8\u9662-\u65B0\u88C5\u5DE5\u4E8B\uFF09>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.designbase-coltd.com/post/%E8%81%B7%E4%BA%BA%E3%81%95%E3%82%93%EF%BC%88%E6%B5%B7%E5%8D%97-%E6%95%B4%E9%AA%A8%E9%99%A2-%E6%96%B0%E8%A3%85%E5%B7%A5%E4%BA%8B%EF%BC%89>