: 24http://127.0.0.1:3333/ Create a prefix for http://127.0.0.1:3333/ Hit Enter to save Double click to create a prefix | : areaRoomSquarehttps://w3id.org/arco/ontology/context-description/ Create a prefix for https://w3id.org/arco/ontology/context-description/ Hit Enter to save Double click to create a prefix | : defaulthttps://data.pldn.nl/Vincent/ut-lecture-rooms/graphs/ Create a prefix for https://data.pldn.nl/Vincent/ut-lecture-rooms/graphs/ Hit Enter to save Double click to create a prefix |