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An Item is the main container for the XML document. A Div is used to create contained hierarchical structure that contains one or more Spans. You can not add time codes to Divs. A Span is used to add beginning and end times to specific parts of the file. A label attribute is required on both Divs and Spans.
Avalon items can contain many files, or sections as we call them. Each file can have only one XML document or "XML Item". Each "XML item" for which structure should be added should contain at least 1-2 Spans with time codes in place.
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