: GF_AssociationType.theGF_Operationhttp://def.isotc211.org/iso19109/2005/GeneralFeatureModel# Create a prefix for http://def.isotc211.org/iso19109/2005/GeneralFeatureModel# Hit Enter to save Double click to create a prefix | rdfs:isDefinedBy | http://standards.iso.org/iso/19109/ed-1/en/ | graph:default |