<surplus>

<surplus> marks text present in the source which the editor believes to be superfluous or redundant. [11.3.3.1 Damage, Illegibility, and Supplied Text]
Moduletranscr — 11 Representation of Primary Sources
Attributesatt.global (@xml:id, @n, @xml:lang, @rend, @style, @rendition, @xml:base, @xml:space) (att.global.linking (@corresp, @synch, @sameAs, @copyOf, @next, @prev, @exclude, @select)) (att.global.analytic (@ana)) (att.global.facs (@facs)) (att.global.change (@change)) att.editLike (@evidence, @source, @instant) (att.dimensions (@unit, @quantity, @extent, @precision, @scope) (att.ranging (@atLeast, @atMost, @min, @max, @confidence)) ) (att.responsibility (@cert, @resp))
reasonindicates the grounds for believing this text to be superfluous.
Status Optional
Datatype 1–∞ occurrences of 

<rng:ref name="data.word"/>
data.word
separated by whitespace
Values any word describing the difficulty, e.g. repeated, interpolated etc.
Member of
Contained by
May contain
dictionaries: lang oRef oVar pRef pVar
gaiji: g
header: biblFull idno
iso-fs: fLib fs fvLib
textstructure: floatingText
verse: caesura rhyme
Declaration

<rng:element name="surplus">
 <rng:ref name="att.global.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.editLike.attributes"/>
 <rng:ref name="att.dimensions.attributes"/>
 <rng:ref name="att.ranging.attributes"/>
 <rng:ref name="att.responsibility.attributes"/>
 <rng:optional>
  <rng:attribute name="reason">
   <rng:list>
    <rng:oneOrMore>
     <rng:ref name="data.word"/>
    </rng:oneOrMore>
   </rng:list>
  </rng:attribute>
 </rng:optional>
 <rng:ref name="macro.paraContent"/>
</rng:element>
element surplus
{
   att.global.attributes,
   att.global.linking.attributes,
   att.global.analytic.attributes,
   att.global.facs.attributes,
   att.global.change.attributes,
   att.editLike.attributes,
   att.dimensions.attributes,
   att.ranging.attributes,
   att.responsibility.attributes,
   attribute reason { list { data.word+ } }?,
   macro.paraContent
}
Example
I am dr Sr yrs
<surplus reason="repeated">yrs</surplus>
Sydney Smith