<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://schema.org/Organization>
<http://tonghyun.tistory.com/entry/%ED%95%98%EB%93%9C%EB%94%94%EC%8A%A4%ED%81%AC-%ED%8C%8C%ED%8B%B0%EC%85%98-%ED%95%A9%EC%B9%98%EA%B8%B0>