<https://www.ac-wmat.org/post/irs\u52A0\u5F37\u67E5\u7A05-10\u5E74\u53EF\u671B\u8FFD\u56DE7000\u5104>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.ac-wmat.org/post/irs%E5%8A%A0%E5%BC%B7%E6%9F%A5%E7%A8%85-10%E5%B9%B4%E5%8F%AF%E6%9C%9B%E8%BF%BD%E5%9B%9E7000%E5%84%84>