/usr/share/doc/libxml-libxml-perl/examples/dtd.xml is in libxml-libxml-perl 1.89+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 | <!DOCTYPE doc [
<!ELEMENT doc (#PCDATA)>
<!ENTITY foo " test ">
]>
<doc>This is a valid document &foo; !</doc>
|