http://www.w3.org/1999/xhtml
group inline

Model

>
(a | ((br | span | bdo | map) | object | img) | (tt | i | b | big | small) | (em | strong | dfn | code | q | samp | kbd | var | cite | abbr | acronym | sub | sup) | (input | select | textarea | label | button) )

Source

<xs:group name="inline">
  <xs:choice>
    <xs:element ref="a"/>
    <xs:group ref="special"/>
    <xs:group ref="fontstyle"/>
    <xs:group ref="phrase"/>
    <xs:group ref="inline.forms"/>
  </xs:choice>
</xs:group>