: familienaamClhttps://iisg.amsterdam/db1888_1909_clean_unique.csv/column/ Create a prefix for https://iisg.amsterdam/db1888_1909_clean_unique.csv/column/ Hit Enter to save Double click to create a prefix | : 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 | schema:familyName | : 2021-07-29T13:19https://iisg.amsterdam/id/civ/db1888_1909_clean_unique/provenance/b6b5def2/ Create a prefix for https://iisg.amsterdam/id/civ/db1888_1909_clean_unique/provenance/b6b5def2/ Hit Enter to save Double click to create a prefix |