<https://blog.grabcad.com/blog/2021/04/27/industry-4-0-in-your-smart-factory/#breadcrumb>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://blog.grabcad.com/blog/2021/04/27/industry-4-0-in-your-smart-factory/>