/usr/ is in libplasma3 4:4.14.38-0ubuntu3.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/
/usr/lib/libplasma.so.3.0.0
/usr/share/
/usr/share/bug/
/usr/share/bug/libplasma3
/usr/share/doc/
/usr/share/doc/libplasma3/
/usr/share/doc/libplasma3/copyright
/usr/share/kde4/
/usr/share/kde4/servicetypes/
/usr/share/kde4/servicetypes/plasma-animator.desktop
/usr/share/kde4/servicetypes/plasma-applet-popupapplet.desktop
/usr/share/kde4/servicetypes/plasma-applet.desktop
/usr/share/kde4/servicetypes/plasma-containment.desktop
/usr/share/kde4/servicetypes/plasma-containmentactions.desktop
/usr/share/kde4/servicetypes/plasma-dataengine.desktop
/usr/share/kde4/servicetypes/plasma-packagestructure.desktop
/usr/share/kde4/servicetypes/plasma-runner.desktop
/usr/share/kde4/servicetypes/plasma-scriptengine.desktop
/usr/share/kde4/servicetypes/plasma-service.desktop
/usr/share/kde4/servicetypes/plasma-toolbox.desktop
/usr/share/kde4/servicetypes/plasma-wallpaper.desktop
/usr/share/lintian/
/usr/share/lintian/overrides/
/usr/share/lintian/overrides/libplasma3
/usr/lib/libplasma.so.3
/usr/share/doc/libplasma3/NEWS.Debian.gz
/usr/share/doc/libplasma3/changelog.Debian.gz