Type of content Tags
Shape without Alt Text with whitespace text or no text
<Figure>
  Alt=blank
Shape without Alt Text with Equation
<Formula>
  Alt=equation spelled out 
in words
Shape without Alt Text with non-whitespace text
without Equation <Sect>
  text content
Shape with Alt Text with non-whitespace text without
Equation <Figure>
  Alt=alt text + text (shape 
type)
WordArt without Alt Text or Decorative
<Sect>
  text content
Group without Alt Text
tags for child objects
Group with Alt Text
<Figure>
  Alt=alt text (object type)
  tags for child objects
Decorative Picture in Cell
<TD>
  no tags
Picture without Alt Text in Cell
<TD>
  no tags