/usr/lib/puredata/doc/2.control.examples is in puredata-doc 0.47.1-3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/puredata/doc/../../../share/puredata/doc/2.control.examples
/usr/lib/puredata/doc/../../../share/puredata/doc/2.control.examples