<https://jameshonglaw.com>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://jameshonglaw.com/blogs/kr-article/%EC%9C%A0%ED%95%99-%EB%93%B1-%EB%B9%84%EC%9D%B4%EB%AF%BC-%EB%B9%84%EC%9E%90%EC%8B%AC%EC%82%AC-%EB%95%8C-%EC%9D%B8%ED%84%B0%EB%B7%B0-%EB%A9%B4%EC%A0%9C-%EC%97%B0%EC%9E%A5>