220.127.116.11 SmartTags part
An instance of this part type contains the smart data information for all smart tag-referring text contained within the presentation.
A package shall contain at most one SmartTag part, and that part shall be the target of an explicit relationship from the Presentation part ("[ECMA-376] Part 1 §13.3.6; Presentation Part").
The SmartTags part is binary information that is defined in the PowerPoint 97-2003 Binary File Format (.ppt) Structure Specification (“[MS-PPT] Section 2.11.28; SmartTagStore11Container”).
A SmartTags part shall be located within the package containing the source relationship (expressed syntactically, the TargetMode attribute of the Relationship element shall be Internal).
A SmartTags part shall not have implicit or explicit relationships to any other part defined by ECMA-376 Office Open XML File Formats [ECMA-376].