<https://blog.findmybucketlist.com/tag/%ec%84%b8%eb%a5%b4%eb%b9%84%ec%95%84%ec%9e%90%ec%9c%a0%ec%97%ac%ed%96%89/#breadcrumb>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://blog.findmybucketlist.com/tag/%EC%84%B8%EB%A5%B4%EB%B9%84%EC%95%84%EC%9E%90%EC%9C%A0%EC%97%AC%ED%96%89/>