<https://stad.gent/id/blank_node/5eb68fb7-aaef-4403-980b-7223899c6bbd> <http://www.cidoc-crm.org/cidoc-crm/P4_has_time-span> <https://stad.gent/id/blank_node/dd7ebf43-778c-4f31-9dee-24c28ce89677> .