\import{../osxmlparser/book_domain.osxml}
\import{../osxmlparser/headings_domain.osxml}

\begin{book}
This might be some introductory text or a dedication.

\chapter#myFirstChapter
\heading{My first chapter}
Here we might have an introduction to the chapter.

\section#myFirstSection
\heading{A rather curious experiment}
Here we might find the actual section content.

\section#mySndSection
Here we might find the actual section content.

\end{book}