P5: Directrices para la codificación y el intercambio de textos electrónicos

<rng:element name="vocal">
 <rng:ref name="att.global.attributes"/>
 <rng:ref name="att.global.rendition.attributes"/>
 <rng:ref name="att.global.linking.attributes"/>
 <rng:ref name="att.global.analytic.attributes"/>
 <rng:ref name="att.global.facs.attributes"/>
 <rng:ref name="att.global.change.attributes"/>
 <rng:ref name="att.global.responsibility.attributes"/>
 <rng:ref name="att.timed.attributes"/>
 <rng:ref name="att.duration.w3c.attributes"/>
 <rng:ref name="att.duration.iso.attributes"/>
 <rng:ref name="att.ascribed.attributes"/>
 <rng:ref name="att.typed.attributes"/>
 <rng:optional>
  <rng:attribute name="iterated"
   a:defaultValue="false">
   <rng:ref name="data.xTruthValue"/>
  </rng:attribute>
 </rng:optional>
 <rng:zeroOrMore>
  <rng:ref name="model.descLike"/>
 </rng:zeroOrMore>
</rng:element>

element vocal
{
   att.global.attributes,
   att.global.rendition.attributes,
   att.global.linking.attributes,
   att.global.analytic.attributes,
   att.global.facs.attributes,
   att.global.change.attributes,
   att.global.responsibility.attributes,
   att.timed.attributes,
   att.duration.w3c.attributes,
   att.duration.iso.attributes,
   att.ascribed.attributes,
   att.typed.attributes,
   attribute iterated { data.xTruthValue }?,
   model.descLike*
}