Headed group of material; the basic structural unit of the body of a document.
The following, in order:
<title> Title
Any combination of:
<boxed-text> Boxed Text
<chem-struct-wrap> Chemical Structure Wrapper
<fig> Figure
<graphic> Graphic
<media> Media Object
<preformat> Preformatted Text
<supplementary-material> Supplementary Material
<table-wrap> Table Wrapper
<disp-formula> Formula, Display
<disp-formula-group> Formula, Display Group
<def-list> Definition List
<list> List
<p> Paragraph
<disp-quote> Quote, Displayed
<speech> Speech
<statement> Statement, Formal
<verse-group> Verse Form for Poetry
<sec> Section, zero or more