SG = <http://www.simantics.org/Scenegraph-1.1>
SEL = <http://www.simantics.org/SelectionView-1.2>
GF = <http://www.simantics.org/GraphFile-0.1>
SG = <http://www.simantics.org/Scenegraph-1.1>
SEL = <http://www.simantics.org/SelectionView-1.2>
GF = <http://www.simantics.org/GraphFile-0.1>