COTUS Monographs preamble as chapters
Sometimes the preamble has its own chapter heading, or is combined with the first article. In both cases, capture the preamble and introduction in a chapter element.
COTUS Monographs Example
COTUS Monographs XML
<chapter id="law-9780199766925-chapter-2" doi="10.1093/law/9780199766925.003.0002">
<titleGroup><title>
<p>Preamble and <enumerator>Article I</enumerator>
</p></title><subtitle>
<p>The Bill of Rights</p></subtitle>
</titleGroup>
<textMatter><div1>
<titleGroup>
<title>
<p>Preamble</p>
</title>
</titleGroup></div1>
</textMatter>
</chapter>