L0 = <http://www.simantics.org/Layer0-1.1>

Scenegraph = <http://www.simantics.org/Scenegraph-1.1> : L0.Ontology
    @L0.new
    L0.HasResourceClass "org.simantics.scenegraph.ontology.ScenegraphResources"

Scenegraph.Node <T L0.Entity
  >-- Scenegraph.Node.HasProperty --> L0.Value <R L0.HasProperty
  >-- Scenegraph.Node.children --> L0.Value <R L0.HasProperty : L0.FunctionalRelation
    L0.RequiresValueType "[Resource]"
  
Scenegraph.userProperty <R L0.HasProperty : L0.FunctionalRelation

Scenegraph.Functions : L0.Library

Scenegraph.LiftedPropertyRelation <T L0.FunctionalRelation
    @L0.assert Scenegraph.userProperty true

Scenegraph.LiftedProperty <T L0.Value
    @L0.assert 
        L0.ConvertsToValueWith 
        Scenegraph.Functions.liftedProperty : L0.ExternalValue
Scenegraph.LiftedProperty.HasPredicate <R L0.DependsOn : L0.FunctionalRelation

Scenegraph.lifted : L0.Template
    @template %object %predicate
        %object : Scenegraph.LiftedProperty 
            Scenegraph.LiftedProperty.HasPredicate %predicate

  
  
Scenegraph.Runtime <T L0.Entity
  >-- Scenegraph.Runtime.variable --> L0.Value <R L0.HasProperty : L0.FunctionalRelation
  >-- Scenegraph.Runtime.resource --> L0.Value <R L0.HasProperty : L0.FunctionalRelation
  @L0.assert Scenegraph.Runtime.variable
    Scenegraph.Functions.defaultRuntimeVariable : L0.Function
  @L0.assert Scenegraph.Runtime.resource
    Scenegraph.Functions.defaultRuntimeResource : L0.Function
    
Scenegraph.Runtime.HasVariable <R L0.DependsOn
Scenegraph.Runtime.HasResource <R L0.DependsOn

  
Scenegraph.Functions.singleVariableSelection : L0.Function