<https://www.cool-style.com.tw/wd2/archives/628820-%e8%90%bd%e6%9e%95%ef%bc%9f-077-%e9%97%9c%e9%8d%b5-g4-%e5%b1%85%e7%84%b6%e9%a0%b8%e9%83%a8%e5%8f%97%e5%82%b7%ef%bc%81%e4%b8%bb%e5%b8%a5%e8%b3%bd%e5%be%8c%e9%80%8f%e9%9c%b2%e4%bb%96%e8%87%b4%e5%91%bd>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.cool-style.com.tw/wd2/archives/category/%E7%94%9F%E6%B4%BB/%E9%81%8B%E5%8B%95%E8%B3%BD%E4%BA%8B/page/331>