P5: Linee guida per la codifica e l'interscambio del testo elettronico

<rng:element name="langUsage">
<rng:ref name="att.global.attributes"/>
<rng:ref name="att.declarable.attributes"/>
<rng:oneOrMore>
 <rng:choice>
<!--        <rng:ref name="p"/>-->
  <rng:ref name="language"/>
 </rng:choice>
</rng:oneOrMore>
</rng:element>

element langUsage
{
   att.global.attributes,
   att.declarable.attributes,
   language+
}