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