Type of content Tags
Table
<Table>
  <THead>
    <TR>
      <TH>
        text content
      <TH>
        text content
  <TBody>
    <TR>
      <TH>
        text content
      <TD>
        text content
Table Header Cell
<TH>
Decorative Graphical Object
no tags
Graphical Object with Alt Text
<Figure>
  Alt=alt text (object type)
Graphical Object other than Shape without Alt Text
<Figure>
  Alt=blank
Shape without Alt Text with text
<Sect>
  text content
Shape with Alt Text with text
<Figure>
  Alt=alt text + text (shape 
type)