/usr/share/man/man1/virtuoso-t.1.gz is in virtuoso-opensource-6.1-bin 6.1.6+dfsg2-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/man/man1/VIRTUOSO-T.1.gz
/usr/share/man/man1/VIRTUOSO-T.1.gz