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Grouping elements are used solely to group other structure elements; they are not directly associated with content items.
public static class StandardStructureTypes.GroupingElements
A relatively self-contained body of text constituting a single narrative or exposition. Articles should be disjoint; that is, they should not contain other articles as constituent elements.
public const string Art = "Art"
Document. A complete document. This is the root element of any structure tree containing multiple parts or multiple articles.
public const string Document = "Document"
Part. A large-scale division of a document. This type of element is appropriate for grouping articles or sections.
public const string Part = "Part"