<https://www.otosaigon.com/threads/hop-so-at-cua-accord-2008-bi-hu.8892354/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.otosaigon.com/threads/hop-so-at-cua-accord-2008-bi-hu.8892354/page-3>