: 122https://watwaarwanneer.info/event/ Create a prefix for https://watwaarwanneer.info/event/ Hit Enter to save Double click to create a prefix | : Eventhttp://semanticweb.cs.vu.nl/2009/11/sem/ Create a prefix for http://semanticweb.cs.vu.nl/2009/11/sem/ Hit Enter to save Double click to create a prefix |