it must be referenced by an entity instance inheriting from IfcRoot directly or indirectly

Usages:

• Then it must be referenced by an entity instance inheriting from IfcRoot directly or indirectly

  ( ⚠ IFC105 Resource entities need to be referenced by rooted entity - v5) (disabled):19

• Then it must be referenced by an entity instance inheriting from IfcRoot directly or indirectly

  IFC106 Resource entities should be referenced by rooted entity - v1:18