<group>

<group> (group) contains the body of a composite text, grouping together a sequence of distinct texts (or groups of such texts) which are regarded as a unit for some purpose, for example the collected works of an author, a sequence of prose essays, etc. [4 Default Text Structure 4.3.1 Grouped Texts 15.1 Varieties of Composite Text]
Module textstructure — Default Text Structure
Attributes
Contained by
textstructure: floatingText group text
May contain
analysis: interp interpGrp span spanGrp
certainty: certainty precision respons
core: cb ellipsis gap gb head index lb meeting milestone note noteGrp pb
figures: figure notatedMusic
iso-fs: fLib fs fvLib
linking: alt altGrp anchor join joinGrp link linkGrp timeline
spoken: incident kinesic pause shift vocal writing
textcrit: app witDetail
textstructure: argument byline closer dateline docAuthor docDate epigraph group opener postscript salute signed text trailer
transcr: addSpan damageSpan delSpan fw listTranspose metamark space substJoin
Example
<text>
<!-- Section on Alexander Pope starts -->
 <front>
<!-- biographical notice by editor -->
 </front>
 <group>
  <text>
<!-- first poem -->
  </text>
  <text>
<!-- second poem -->
  </text>
 </group>
</text>
<!-- end of Pope section-->
Content model 
<content>
 <sequence>
  <alternate minOccurs="0"
   maxOccurs="unbounded">
   <classRef key="model.divTop"/>
   <classRef key="model.global"/>
  </alternate>
  <sequence>
   <alternate>
    <elementRef key="text"/>
    <elementRef key="group"/>
   </alternate>
   <alternate minOccurs="0"
    maxOccurs="unbounded">
    <elementRef key="text"/>
    <elementRef key="group"/>
    <classRef key="model.global"/>
   </alternate>
  </sequence>
  <classRef key="model.divBottom"
   minOccurs="0" maxOccurs="unbounded"/>
 </sequence>
</content>
Schema Declaration 
<rng:element name="group">
 <rng:ref name="att.global.attributes"/>
 <rng:ref name="att.global.rendition.attributes"/>
 <rng:ref name="att.global.linking.attributes"/>
 <rng:ref name="att.global.analytic.attributes"/>
 <rng:ref name="att.global.facs.attributes"/>
 <rng:ref name="att.global.change.attributes"/>
 <rng:ref name="att.global.responsibility.attributes"/>
 <rng:ref name="att.global.source.attributes"/>
 <rng:ref name="att.declaring.attributes"/>
 <rng:ref name="att.typed.attributes"/>
 <rng:group>
  <rng:zeroOrMore>
   <rng:choice>
    <rng:ref name="model.divTop"/>
    <rng:ref name="model.global"/>
   </rng:choice>
  </rng:zeroOrMore>
  <rng:group>
   <rng:choice>
    <rng:ref name="text"/>
    <rng:ref name="group"/>
   </rng:choice>
   <rng:zeroOrMore>
    <rng:choice>
     <rng:ref name="text"/>
     <rng:ref name="group"/>
     <rng:ref name="model.global"/>
    </rng:choice>
   </rng:zeroOrMore>
  </rng:group>
  <rng:zeroOrMore>
   <rng:ref name="model.divBottom"/>
  </rng:zeroOrMore>
 </rng:group>
</rng:element>
element group
{
   att.global.attributes,
   att.global.rendition.attributes,
   att.global.linking.attributes,
   att.global.analytic.attributes,
   att.global.facs.attributes,
   att.global.change.attributes,
   att.global.responsibility.attributes,
   att.global.source.attributes,
   att.declaring.attributes,
   att.typed.attributes,
   (
      ( model.divTop | model.global )*,
      ( ( text | group ), ( text | group | model.global )* ),
      model.divBottom*
   )
}