+ DocBookTag para
+ DocBookAttr role='exercise'
+End
+
+
+Style Solution
+ CopyStyle Definition
+ LatexName sol
+ LabelString "Solution \thetheorem."
+ Preamble
+ \theoremstyle{definition}
+ \newtheorem{sol}[thm]{\protect\solutionname}
+ EndPreamble
+ LangPreamble
+ \providecommand{\solutionname}{_(Solution)}
+ EndLangPreamble
+ BabelPreamble
+ \addto\captions$$lang{\renewcommand{\solutionname}{_(Solution)}}
+ EndBabelPreamble
+ DocBookTag para
+ DocBookAttr role='solution'