<https://www.dudumusic.co.kr/post/\uC774\uC218\uD55C-\uAC10\uC544\uC9C0\uB2E4-2017-10-31>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.dudumusic.co.kr/post/%EC%9D%B4%EC%88%98%ED%95%9C-%EA%B0%90%EC%95%84%EC%A7%80%EB%8B%A4-2017-10-31>