P5: Guidelines for Electronic Text Encoding and Interchange

<rng:element name="setting">
<rng:ref name="att.global.attributes"/>
<rng:ref name="att.ascribed.attributes"/>
<rng:choice>
 <rng:oneOrMore>
  <rng:ref name="model.pLike"/>
 </rng:oneOrMore>
 <rng:zeroOrMore>
  <rng:choice>
   <rng:ref name="model.nameLike.agent"/>
   <rng:ref name="model.dateLike"/>
   <rng:ref name="model.settingPart"/>
  </rng:choice>
 </rng:zeroOrMore>
</rng:choice>
</rng:element>

element setting
{
   att.global.attributes,
   att.ascribed.attributes,
   (
      model.pLike+
    | ( model.nameLike.agent | model.dateLike | model.settingPart )*
   )
}