<lem>

<lem> (主題) 包含一個原文變異的主題或基礎文件。 [12.1 The Apparatus Entry, Readings, and Witnesses]
組件textcrit — Critical Apparatus
屬性att.global (@xml:id, @n, @xml:lang, @xml:base, @xml:space) (att.global.rendition (@rend, @style, @rendition)) (att.global.linking (@corresp, @synch, @sameAs, @copyOf, @next, @prev, @exclude, @select)) (att.global.analytic (@ana)) (att.global.facs (@facs)) (att.global.change (@change)) (att.global.responsibility (@cert, @resp)) (att.global.source (@source)) att.textCritical (@type, @cause, @varSeq, @require) (att.written (@hand)) att.witnessed (@wit)
可包含在於
textcrit: app rdgGrp
可包含
analysis: c cl interp interpGrp m pc phr s span spanGrp w
certainty: certainty precision respons
core: abbr add address bibl biblStruct binaryObject cb choice cit corr date del desc distinct email emph expan foreign gap gb gloss graphic hi index l label lb lg list listBibl measure measureGrp media mentioned milestone name note num orig p pb ptr q quote ref reg rs said sic soCalled sp stage term time title unclear
dictionaries: lang oRef pRef
drama: camera caption castList move sound spGrp tech view
figures: figure formula notatedMusic table
gaiji: g
header: biblFull idno
iso-fs: fLib fs fvLib
linking: ab alt altGrp anchor join joinGrp link linkGrp seg timeline
msdescription: catchwords depth dim dimensions height heraldry locus locusGrp material msDesc objectType origDate origPlace secFol signatures stamp watermark width
namesdates: addName affiliation bloc climate country district forename genName geo geogFeat geogName listEvent listNym listOrg listPerson listPlace listRelation location nameLink offset orgName persName placeName population region roleName settlement state surname terrain trait
nets: eTree forest graph listForest tree
spoken: annotationBlock incident kinesic pause shift u vocal writing
tagdocs: att classSpec code constraintSpec dataSpec eg egXML elementSpec gi ident listRef macroSpec moduleSpec outputRendition schemaSpec specDesc specGrp specGrpRef specList tag val
textcrit: app lacunaEnd lacunaStart listApp listWit wit witDetail witEnd witStart
textstructure: div floatingText
transcr: addSpan am damage damageSpan delSpan ex fw handShift listTranspose metamark mod redo restore retrace secl space subst substJoin supplied surplus undo
verse: caesura rhyme
character data
註

The term lemma is used in text criticism to describe the reading in the text itself (as opposed to those in the apparatus); this usage is distinct from that of mathematics (where a lemma is a major step in a proof) and natural-language processing (where a lemma is the dictionary form associated with an inflected form in the running text).

例子
<app>
 <lem wit="#El #Hg">Experience</lem>
 <rdg wit="#La" type="substantive">Experiment</rdg>
 <rdg wit="#Ra2" type="substantive">Eryment</rdg>
</app>
Content model
<content>
 <alternate minOccurs="0"
  maxOccurs="unbounded">
  <textNode/>
  <classRef key="model.divLike"/>
  <classRef key="model.divPart"/>
  <classRef key="model.gLike"/>
  <classRef key="model.phrase"/>
  <classRef key="model.inter"/>
  <classRef key="model.global"/>
  <classRef key="model.rdgPart"/>
 </alternate>
</content>
宣告
<rng:element name="lem">
 <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.textCritical.attributes"/>
 <rng:ref name="att.written.attributes"/>
 <rng:ref name="att.witnessed.attributes"/>
 <rng:zeroOrMore>
  <rng:choice>
   <rng:text/>
   <rng:ref name="model.divLike"/>
   <rng:ref name="model.divPart"/>
   <rng:ref name="model.gLike"/>
   <rng:ref name="model.phrase"/>
   <rng:ref name="model.inter"/>
   <rng:ref name="model.global"/>
   <rng:ref name="model.rdgPart"/>
  </rng:choice>
 </rng:zeroOrMore>
</rng:element>
element lem
{
   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.textCritical.attributes,
   att.written.attributes,
   att.witnessed.attributes,
   (
      text
    | model.divLike
    | model.divPart
    | model.gLike
    | model.phrase
    | model.inter
    | model.global
    | model.rdgPart
   )*
}