: 3https://data.pldn.nl/bpil-group01/my-data/id/ Create a prefix for https://data.pldn.nl/bpil-group01/my-data/id/ Hit Enter to save Double click to create a prefix | : IsUpstreamOfhttps://data.pldn.nl/sronzhin/bpil-onto/ Create a prefix for https://data.pldn.nl/sronzhin/bpil-onto/ Hit Enter to save Double click to create a prefix | Vlak_en_Vak |