/usr/share/man/man3/ow.3.gz is in libow-tcl 2.8p13+dfsg1-5build1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/man/man3/owtcl.3.gz
/usr/share/man/man3/owtcl.3.gz