P5: TEI指引

<rng:element name="rhyme">
<rng:ref name="att.global.attributes"/>
<rng:ref name="att.typed.attributes"/>
<rng:optional>
 <rng:attribute name="label">
  <rng:ref name="data.word"/>
 </rng:attribute>
</rng:optional>
<rng:ref name="macro.paraContent"/>
</rng:element>

element rhyme
{
   att.global.attributes,
   att.typed.attributes,
   attribute label { data.word }?,
   macro.paraContent
}