/usr/share/doc/docbook-xml/ is in docbook-xml 4.5-7.2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/docbook-xml/README.Debian
/usr/share/doc/docbook-xml/TODO.Debian
/usr/share/doc/docbook-xml/changelog.Debian.gz
/usr/share/doc/docbook-xml/changelog.gz
/usr/share/doc/docbook-xml/copyright
/usr/share/doc/docbook-xml/examples/
/usr/share/doc/docbook-xml/examples/Makefile
/usr/share/doc/docbook-xml/examples/README
/usr/share/doc/docbook-xml/examples/test-4.0.xml
/usr/share/doc/docbook-xml/examples/test-4.1.2.xml
/usr/share/doc/docbook-xml/examples/test-4.1.xml
/usr/share/doc/docbook-xml/examples/test-4.2.xml
/usr/share/doc/docbook-xml/examples/test-4.3.xml
/usr/share/doc/docbook-xml/examples/test-4.4.xml
/usr/share/doc/docbook-xml/examples/test-4.5.xml
/usr/share/doc/docbook-xml/examples/test-4.xml
/usr/share/doc/docbook-xml/examples/test-bad-si-4.0.xml
/usr/share/doc/docbook-xml/examples/test-bad-si-4.1.2.xml
/usr/share/doc/docbook-xml/examples/test-bad-si-4.1.xml
/usr/share/doc/docbook-xml/examples/test-bad-si-4.2.xml
/usr/share/doc/docbook-xml/examples/test-bad-si-4.3.xml
/usr/share/doc/docbook-xml/examples/test-bad-si-4.4.xml
/usr/share/doc/docbook-xml/examples/test-bad-si-4.5.xml
/usr/share/doc/docbook-xml/examples/test-legacy-si-4.0.xml
/usr/share/doc/docbook-xml/examples/test-legacy-si-4.1.2.xml
/usr/share/doc/docbook-xml/examples/test-legacy-si-4.1.xml
/usr/share/doc/docbook-xml/examples/test-legacy-si-4.2.xml
/usr/share/doc/docbook-xml/examples/test-legacy-si-4.3.xml
/usr/share/doc/docbook-xml/examples/test-si-4.3.xml
/usr/share/doc/docbook-xml/examples/test-si-4.4.xml
/usr/share/doc/docbook-xml/examples/test-si-4.5.xml
/usr/share/doc/docbook-xml/examples/test-si-4.xml
/usr/share/doc/docbook-xml/examples/test-si-url-docbook.org-4.1.2.xml
/usr/share/doc/docbook-xml/examples/test-si-url-docbook.org-4.2.xml
/usr/share/doc/docbook-xml/examples/test-si-url-docbook.org-4.3.xml
/usr/share/doc/docbook-xml/examples/test-si-url-docbook.org-4.4.xml
/usr/share/doc/docbook-xml/examples/test-si-url-docbook.org-4.5.xml
/usr/share/doc/docbook-xml/examples/test-si-url-oasis-4.1.2.xml
/usr/share/doc/docbook-xml/examples/test-si-url-oasis-4.2.xml
/usr/share/doc/docbook-xml/examples/test-si-url-oasis-4.3.xml
/usr/share/doc/docbook-xml/examples/test-si-url-oasis-4.4.xml
/usr/share/doc/docbook-xml/examples/test-si-url-oasis-4.5.xml