/usr/share/doc/libxerces-c-dev/README is in libxerces-c-dev 3.1.1-1build1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libxerces-c-dev/../libxerces-c3.1/README
/usr/share/doc/libxerces-c-dev/../libxerces-c3.1/README