<https://hsf0168.pixnet.net/blog/post/322290725-%e5%86%8d%e8%a8%aa--%e9%98%bf%e6%a0%b9%e5%bb%b7%e7%89%9b%e6%8e%92>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://hsf0168.pixnet.net/blog/post/322290725-%E5%86%8D%E8%A8%AA--%E9%98%BF%E6%A0%B9%E5%BB%B7%E7%89%9B%E6%8E%92>