/usr/ is in libkf5akonadicalendar-dev 4:17.12.3-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/
/usr/include/KF5/
/usr/include/KF5/Akonadi/
/usr/include/KF5/Akonadi/Calendar/
/usr/include/KF5/Akonadi/Calendar/BlockAlarmsAttribute
/usr/include/KF5/Akonadi/Calendar/CalendarBase
/usr/include/KF5/Akonadi/Calendar/CalendarClipboard
/usr/include/KF5/Akonadi/Calendar/ETMCalendar
/usr/include/KF5/Akonadi/Calendar/FetchJobCalendar
/usr/include/KF5/Akonadi/Calendar/FreeBusyManager
/usr/include/KF5/Akonadi/Calendar/FreeBusyProviderBase
/usr/include/KF5/Akonadi/Calendar/History
/usr/include/KF5/Akonadi/Calendar/ICalImporter
/usr/include/KF5/Akonadi/Calendar/ITIPHandler
/usr/include/KF5/Akonadi/Calendar/IncidenceChanger
/usr/include/KF5/Akonadi/Calendar/PublishDialog
/usr/include/KF5/Akonadi/Calendar/StandardCalendarActionManager
/usr/include/KF5/Akonadi/Calendar/TodoPurger
/usr/include/KF5/akonadi/
/usr/include/KF5/akonadi/calendar/
/usr/include/KF5/akonadi/calendar/akonadi-calendar_export.h
/usr/include/KF5/akonadi/calendar/blockalarmsattribute.h
/usr/include/KF5/akonadi/calendar/calendarbase.h
/usr/include/KF5/akonadi/calendar/calendarclipboard.h
/usr/include/KF5/akonadi/calendar/calendarsettings.h
/usr/include/KF5/akonadi/calendar/etmcalendar.h
/usr/include/KF5/akonadi/calendar/fetchjobcalendar.h
/usr/include/KF5/akonadi/calendar/freebusymanager.h
/usr/include/KF5/akonadi/calendar/freebusyproviderbase.h
/usr/include/KF5/akonadi/calendar/history.h
/usr/include/KF5/akonadi/calendar/icalimporter.h
/usr/include/KF5/akonadi/calendar/incidencechanger.h
/usr/include/KF5/akonadi/calendar/itiphandler.h
/usr/include/KF5/akonadi/calendar/publishdialog.h
/usr/include/KF5/akonadi/calendar/standardcalendaractionmanager.h
/usr/include/KF5/akonadi/calendar/todopurger.h
/usr/include/KF5/akonadi-calendar_version.h
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/cmake/
/usr/lib/x86_64-linux-gnu/cmake/KF5AkonadiCalendar/
/usr/lib/x86_64-linux-gnu/cmake/KF5AkonadiCalendar/KF5AkonadiCalendarConfig.cmake
/usr/lib/x86_64-linux-gnu/cmake/KF5AkonadiCalendar/KF5AkonadiCalendarConfigVersion.cmake
/usr/lib/x86_64-linux-gnu/cmake/KF5AkonadiCalendar/KF5AkonadiCalendarTargets-debian.cmake
/usr/lib/x86_64-linux-gnu/cmake/KF5AkonadiCalendar/KF5AkonadiCalendarTargets.cmake
/usr/lib/x86_64-linux-gnu/qt5/
/usr/lib/x86_64-linux-gnu/qt5/mkspecs/
/usr/lib/x86_64-linux-gnu/qt5/mkspecs/modules/
/usr/lib/x86_64-linux-gnu/qt5/mkspecs/modules/qt_AkonadiCalendar.pri
/usr/share/
/usr/share/doc/
/usr/share/doc/libkf5akonadicalendar-dev/
/usr/share/doc/libkf5akonadicalendar-dev/copyright
/usr/lib/x86_64-linux-gnu/libKF5AkonadiCalendar.so
/usr/share/doc/libkf5akonadicalendar-dev/changelog.Debian.gz