A container for bookmark related atoms. Bookmarks are text links used mainly for exporting PowerPoint property fields to Lotus Notes fields or columns. The contents of a Bookmark Collection depend on whether the presentation has bookmarks or not. When the presentation doesn't have bookmarks, a bookmarkCollection contains only a bookmarkSeedAtom. When the presentation has bookmarks, it also contains a bookmarkSeedAtom, and in addition it contains a set of the following per bookmark:
A BookmarkEntityAtom
BookmarkEntityEnd
ListPlaceholder