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

L0.Entity
  L0.HasConstraint L0.Entity.RelationConstraint
    @L0.sclConstraint "relationValidator"
    //L0.Constraint.Validator L0.Functions.relationValidator
  L0.HasConstraint L0.Entity.PropertyConstraint
    @L0.sclConstraint "propertyValidator"
    //L0.Constraint.Validator L0.Functions.propertyValidator
  L0.HasConstraint L0.Entity.ValueConstraint
    @L0.sclConstraint "valueValidator"
    //L0.Constraint.Validator L0.Functions.valueValidator
  L0.HasConstraint L0.Entity.ClusterConstraint
    @L0.sclConstraint "clusterValidator"
    //L0.Constraint.Validator L0.Functions.clusterValidator
  L0.HasConstraint L0.Entity.URIConstraint
    @L0.sclConstraint "uriValidator"