<https://stad.gent/id/blank_node/8380da68-a2da-4946-bbb5-f23aab1b104b> <http://www.cidoc-crm.org/cidoc-crm/P4_has_time-span> <https://stad.gent/id/blank_node/e97cc44a-86b0-457c-846d-1c0c04d17fd6> .