<https://www.marcellengel.com/#/schema/person/c1d89fc3a0ff80b33292c54be2ca3d76>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.marcellengel.com/lernen-vom-profi-tatortreiniger-marcell-engel/>