/usr/share/ is in gnat-4.9 4.9.3-3ubuntu5.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/gnat-4.9-base/test-summary.gz
/usr/share/man/
/usr/share/ada/
/usr/share/man/man1/
/usr/share/ada/debian_packaging.mk
/usr/share/man/man1/gnat.1.gz
/usr/share/doc/
/usr/share/doc/gnat-4.9-base/
/usr/share/doc/gnat-4.9
/usr/share/man/man1/gnatls.1.gz
/usr/share/man/man1/gnatxref.1.gz
/usr/share/man/man1/gnatname.1.gz
/usr/share/man/man1/gnatmake.1.gz
/usr/share/man/man1/gnatclean.1.gz
/usr/share/man/man1/gnathtml.1.gz
/usr/share/man/man1/gnatlink.1.gz
/usr/share/man/man1/gnatkr.1.gz
/usr/share/man/man1/gnatchop.1.gz
/usr/share/man/man1/gnatfind.1.gz
/usr/share/man/man1/gnatgcc.1.gz
/usr/share/man/man1/gnatbind.1.gz
/usr/share/man/man1/gnatprep.1.gz