: propertyUrlhttp://www.w3.org/ns/csvw# Create a prefix for http://www.w3.org/ns/csvw# Hit Enter to save Double click to create a prefix | : 2018-03-21T23:04https://iisg.amsterdam/wijken_qgis_exportMM_atts/provenance/13b25556/ Create a prefix for https://iisg.amsterdam/wijken_qgis_exportMM_atts/provenance/13b25556/ Hit Enter to save Double click to create a prefix |