<https://canadiansealproducts.com/zh-hans/blog/seals-still-the-elephants-in-the-room#breadcrumb>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://canadiansealproducts.com/zh-hans/blog/seals-still-the-elephants-in-the-room>