. "Reference to the index of the segment within the\nsegment list." . . "Reference to list key" . . . "Reference to the list key" . . . "Index of the segment within the segment list. The segments are\nordered in ascending order, beginning at 0." . . . "System generated index for each attribute set. The\nindex is used to reference an attribute set from a\nspecific path. Multiple paths may reference the same\nattribute set." .