: virtualhttp://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 | : 2021-04-30T10:15https://iisg.amsterdam/links/O ...... 021_clean/provenance/39fd0962/ Create a prefix for https://iisg.amsterdam/links/Overlijdensakten_1856_1857_april2021_clean/provenance/39fd0962/ Hit Enter to save Double click to create a prefix |