<https://stad.gent/id/blank_node/ef2dff63-3461-42f8-8361-4b06800a88e0> <http://www.cidoc-crm.org/cidoc-crm/P3_has_note> <https://apidg.gent.be/opendata/adlib2eventstream/v1/industriemuseum/penhouder> .