: 21http://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 |