    class
    	EV_MODEL_GROUP

    Ancestors
    	ARRAYED_LIST [G]
    	EV_MODEL*
    	EV_MODEL_SINGLE_POINTED*

    Descendants
    	EV_MODEL_MOVE_HANDLE
    	EV_MODEL_WORLD

    Clients
    	EV_MODEL*
    	EV_MODEL_DOUBLE_POINTED*
    	EV_MODEL_GROUP
    	EV_MODEL_MOVE_HANDLE
    	EV_MODEL_PROJECTION_ROUTINES*
    	EV_MODEL_SINGLE_POINTED*
    	EV_MODEL_WIDGET_PROJECTOR*
    	EV_MODEL_WORLD

    Suppliers
    	ARRAY [G]
    	ARRAYED_LIST [G]
    	BOOLEAN
    	EV_COORDINATE
    	EV_MODEL*
    	EV_MODEL_GROUP
    	EV_MODEL_TRANSFORMATION
    	EV_MODEL_WORLD
    	EV_RECTANGLE
    	HASH_TABLE [G, H -> HASHABLE]
    	INTEGER_32
    	REAL_64
    	SEQUENCE* [G]
    	SPECIAL [T]