(root)/
Python-3.11.7/
Lib/
test/
xmltestdata/
c14n-20/
inC14N2.xml
<doc>
   <clean>   </clean>
   <dirty>   A   B   </dirty>
   <mixed>
      A
      <clean>   </clean>
      B
      <dirty>   A   B   </dirty>
      C
   </mixed>
</doc>