\starttext

\defineenumeration
  [example]

\setupenumerations
  [example]
  [prefix=yes,
   prefixsegments=2:2,
   title=yes,
   titleleft=,
   titleright=]

\startchapter[title=x]
    \startexample[bagger1]{first}  \input tufte \stopexample
    \startexample[bagger2]{second} \input tufte \stopexample
    \placefigure{}{}
    \in {example} [bagger1]
\stopchapter

\startchapter[title=x]
    \startexample[bagger1]{first}  \input tufte \stopexample
    \startexample[bagger2]{second} \input tufte \stopexample
    \placefigure{}{}
    \in {example} [bagger1]
\stopchapter

\stoptext
