<https://jsodom.org/#listItem>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://jsodom.org/journal/backnumber/%E6%97%A5%E6%9C%AC%E5%8F%A3%E8%85%94%E8%A8%BA%E6%96%AD%E5%AD%A6%E4%BC%9A%E9%9B%91%E8%AA%8C-%E7%AC%AC22%E5%B7%BB-%E7%AC%AC2%E5%8F%B7/>