    class
    	BOOLEAN_REF

    Ancestors
    	HASHABLE*

    Descendants
    	BOOLEAN

    Clients
    	BOOLEAN_REF
    	DATABASE_BOOLEAN [G -> DATABASE create default_create end]
    	DATABASE_DATA [G -> DATABASE create default_create end]
    	DB_TABLES_ACCESS*
    	DV_COMBO_BOX
    	EV_PICK_AND_DROPABLE_IMP*
    	EV_SIZEABLE_CONTAINER_IMP*
    	EXT_INTERNAL
    	SQL_SCAN
    	WEL_WINDOW*

    Suppliers
    	BOOLEAN
    	BOOLEAN_REF
    	INTEGER_32