MediaObject Example

<mediaobject>
<imageobject>
  <imagedata fileref="emc2.svg"/>
</imageobject>
<imageobject>
  <imagedata fileref="emc2.png" format="PNG"/>
</imageobject>
<textobject>
  <para>Energy is equal to mass times the speed
of light squared.</para>
</textobject>
<textobject>
  <phrase>E=mc^2</phrase>
</textobject>
</mediaobject>