/usr/share/man/man1/mips64-linux-gnuabi64-gnatchop.1.gz is in gnat-7-mips64-linux-gnuabi64 7.3.0-16ubuntu3cross1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/man/man1/mips64-linux-gnuabi64-gnat-7.1.gz