/usr/ is in libphone-ui-dev 1:0.0.1+git20110825-4.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/lib/x86_64-linux-gnu/pkgconfig/libphone-ui.pc
/usr/share/
/usr/share/doc/
/usr/include/
/usr/include/phoneui/
/usr/include/phoneui/phoneui-utils-messages.h
/usr/include/phoneui/phoneui-info.h
/usr/include/phoneui/phoneui-utils-device.h
/usr/include/phoneui/phoneui-utils-sound.h
/usr/include/phoneui/phoneui-utils-sim.h
/usr/include/phoneui/phoneui-utils-calls.h
/usr/include/phoneui/phoneui-utils-contacts.h
/usr/include/phoneui/phoneui-utils.h
/usr/include/phoneui/phoneui-utils-feedback.h
/usr/include/phoneui/phoneui.h
/usr/lib/x86_64-linux-gnu/libphone-ui.so
/usr/share/doc/libphone-ui-dev