<https://greenpalmgallery.com/paintings/tranh-son-mai-vi/chan-dung-tranh-son-mai-vi>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://greenpalmgallery.com/paintings/tranh-son-mai-vi/chan-dung-tranh-son-mai-vi>