The following, in order:

• <label> Label (of an Equation, Figure, Reference, etc.), zero or one

• <title> Title, zero or one

• <abstract> Abstract, zero or more

• <kwd-group> Keyword Group, zero or more

• Any combination of:

  • Paragraph-level Display Elements

    • <address> Address/Contact Information

    • <array> Array (Simple Tabulation)

    • <boxed-text> Boxed Text

    • <chem-struct-wrap> Chemical Structure Wrapper

    • <code> Code

    • <fig> Figure

    • <fig-group> Figure Group

    • <graphic> Graphic

    • <media> Media Object

    • <preformat> Preformatted Text

    • <supplementary-material> Supplementary Material Metadata

    • <table-wrap> Table Wrapper

    • <table-wrap-group> Table Wrapper Group

  • <alternatives> Alternatives For Processing

  • <disp-formula> Formula, Display

  • <disp-formula-group> Formula, Display Group

  • Lists

    • <def-list> Definition List

    • <list> List

  • Math Elements

    • <tex-math> TeX Math Equation

    • <mml:math> Math (MathML Tag Set)

  • <p> Paragraph

  • Related Material Elements

    • <related-article> Related Article Information

    • <related-object> Related Object Information

  • <ack> Acknowledgments

  • <disp-quote> Quote, Displayed

  • <speech> Speech

  • <statement> Statement, Formal

  • <verse-group> Verse Form for Poetry

  • <x> X - Generated Text and Punctuation

• Any combination of:

  • <app> Appendix

  • <ref-list> Reference List (Bibliographic)