/usr/lib/libreoffice/share/template/as/wizard/agenda/aw-10grey.ott is in libreoffice-l10n-as 1:3.5.2-2ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/libreoffice/share/template/as/wizard/agenda/../../../en-US/wizard/agenda/aw-10grey.ott