P5: Guidelines for Electronic Text Encoding and Interchange

<rng:element name="measureGrp">
 <rng:ref name="att.global.attributes"/>
 <rng:ref name="att.measurement.attributes"/>
 <rng:ref name="att.typed.attributes"/>
 <rng:zeroOrMore>
  <rng:choice>
   <rng:ref name="model.measureLike"/>
   <rng:ref name="text"/>
  </rng:choice>
 </rng:zeroOrMore>
</rng:element>

element measureGrp
{
   att.global.attributes,
   att.measurement.attributes,
   att.typed.attributes,
   ( model.measureLike | text )*
}