(<= (Has-Subpart-Slot $X Elevator.Counterwtguard) (Elevator $X)) (Inherited-Slot-Value Elevator Has-Subpart-Slot Elevator.Counterwtguard) (Inherited-Facet-Value Slot-Value-Type Elevator Elevator.Counterwtguard Counterweight_Guard_Required) (Inherited-Facet-Value Slot-Cardinality Elevator Elevator.Counterwtguard 1) (=> (Elevator.Counterwtguard $X $Y) (Counterweight_Guard_Required $Y)) (=> (Elevator.Counterwtguard $X $Y) (Elevator $X))