[use case] mixed content
not sure if it is within scope but for TEI handling, sometimes despite the imposed structure there would still be mixed content, eg. description as a text sibling to structured <lat>
and <lon>
elements for locations
<location cert="high">
Gabal Halaqa, 2km west of Dana
<lat>40.885129</lat><lon>30.0731517,18</lon>
</location>