: /Horst%20Tower%20900http://semanticweb.org/campus-routing-ontology# Create a prefix for http://semanticweb.org/campus-routing-ontology# Hit Enter to save Double click to create a prefix | : labelhttp://semanticweb.org/campus-routing-ontology# Create a prefix for http://semanticweb.org/campus-routing-ontology# Hit Enter to save Double click to create a prefix | Horst Tower 900 | graph:LectureRoom |