a series of one or more identifiers (URIs), separated by whitespace
Elizabeth went to <persNamexml:id="ESX">Essex</persName> <certaintytarget="#ESX" locus="gi" degree="0.6"/>
locus
indicates the precise location of the uncertainty in the
markup: applicability of the element, precise position of the
start- or end-tag, value of a specific attribute,
etc.
(element name) uncertain whether the element used actually applies
to the passage.
startLoc
(start location) start-tag may not be correctly located.
endLoc
(end location) end-tag may not be correctly located.
location
both the start-tag and the end-tag may not be
correctly located.
attrName
(attribute name) the value given for the attribute name is
uncertain.
transcribedContent
the content of the element may not be a correct
transcription of the source text.
suppliedContent
the content of the element may not have been
correctly supplied by the reader, e.g. as in the cases of
corr and abbrev elements.
assertedValue
provides an alternative value for the aspect of the markup in
question—an alternative generic identifier, transcription,
or attribute value, or the identifier of an anchor element (to
indicate an alternative starting or ending location). If an
assertedValue is given, the confidence level specified by
degree applies to the alternative markup specified by
assertedValue; if none is given, it applies to the markup
in the text.
generic identifier, attribute value, location (e.g.
indicated by a reference to an anchor element or to an
ptr element), or other appropriate alternative
value.