Sometimes an editor will record traces of a surviving ambiguous or damaged character, but rather than simply underdotting the chosen interpretation, she will list several possibilities (usually in an apparatus or note). This concept is encoded in EpiDoc using the <choice> element to group several unclears.
No example rendering in standard epigraphic conventions.
http://insaph.kcl.ac.uk/iaph2007/iAph090043.html: What survives of the last letter before the break is consonant with Γ, Ε, Ζ, Ξ, Π, Σ, Τ
Other pages describing <choice>:
Other pages describing <unclear>: