/usr/share/man/man1/mips64el-linux-gnuabi64-gnatchop-5.1.gz is in gnat-5-mips64el-linux-gnuabi64 5.5.0-12ubuntu1cross1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/man/man1/mips64el-linux-gnuabi64-gnat-5.1.gz