: Datumshttp://def.isotc211.org/iso19111/2019/ Create a prefix for http://def.isotc211.org/iso19111/2019/ Hit Enter to save Double click to create a prefix | owl:imports | : CoordinateOperationshttp://def.isotc211.org/iso19111/2019/ Create a prefix for http://def.isotc211.org/iso19111/2019/ Hit Enter to save Double click to create a prefix | graph:default |