P5: Guidelines for Electronic Text Encoding and Interchange

<rng:element name="revisionDesc">
<rng:ref name="att.global.attributes"/>
<rng:choice>
 <rng:ref name="list"/>
 <rng:oneOrMore>
  <rng:ref name="change"/>
 </rng:oneOrMore>
</rng:choice>
</rng:element>

element revisionDesc { att.global.attributes, ( list | change+ ) }