P5: Guidelines for Electronic Text Encoding and Interchange

<rng:element name="spanGrp">
 <rng:ref name="att.global.attributes"/>
 <rng:ref name="att.interpLike.attributes"/>
 <rng:zeroOrMore>
  <rng:ref name="span"/>
 </rng:zeroOrMore>
</rng:element>

element spanGrp { att.global.attributes, att.interpLike.attributes, span* }