/usr/share/ada/adainclude/gnatvsn/ is in libgnatvsn5-dev 5.3.1-14ubuntu2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/ada/adainclude/gnatvsn/alloc.ads
/usr/share/ada/adainclude/gnatvsn/aspects.adb
/usr/share/ada/adainclude/gnatvsn/aspects.ads
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