/usr/share/ is in libreoffice-math 1:4.2.8-0ubuntu5.5.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/libreoffice-math/
/usr/share/bug/
/usr/share/bug/libreoffice-math/
/usr/share/bug/libreoffice-math/control
/usr/share/bug/libreoffice-math/presubj
/usr/share/doc/
/usr/share/doc/libreoffice-math/copyright
/usr/share/lintian/
/usr/share/lintian/overrides/
/usr/share/lintian/overrides/libreoffice-math
/usr/share/man/
/usr/share/man/man1/
/usr/share/man/man1/lomath.1.gz
/usr/share/applications/
/usr/share/applications/libreoffice-math.desktop
/usr/share/menu/
/usr/share/menu/libreoffice-math
/usr/share/doc/libreoffice-math/README.gz
/usr/share/doc/libreoffice-math/changelog.Debian.gz