: 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 | : 2018-03-15T12:19https://iisg.amsterdam/siem_long/provenance/fad80c60/ Create a prefix for https://iisg.amsterdam/siem_long/provenance/fad80c60/ Hit Enter to save Double click to create a prefix |