/usr/ is in libkf5completion-dev 5.18.0-0ubuntu1.
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..
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/cmake/
/usr/lib/x86_64-linux-gnu/cmake/KF5Completion/
/usr/lib/
/usr/lib/x86_64-linux-gnu/cmake/KF5Completion/KF5CompletionConfigVersion.cmake
/usr/lib/x86_64-linux-gnu/cmake/KF5Completion/KF5CompletionConfig.cmake
/usr/lib/x86_64-linux-gnu/cmake/KF5Completion/KF5CompletionTargets-debian.cmake
/usr/lib/x86_64-linux-gnu/cmake/KF5Completion/KF5CompletionTargets.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_KCompletion.pri
/usr/include/
/usr/include/KF5/
/usr/include/KF5/kcompletion_version.h
/usr/include/KF5/KCompletion/
/usr/include/KF5/KCompletion/kcombobox.h
/usr/include/KF5/KCompletion/klineedit.h
/usr/include/KF5/KCompletion/kpixmapprovider.h
/usr/include/KF5/KCompletion/KSortableList
/usr/include/KF5/KCompletion/KCompletionMatches
/usr/include/KF5/KCompletion/khistorycombobox.h
/usr/include/KF5/KCompletion/kcompletionbox.h
/usr/include/KF5/KCompletion/KCompletionBase
/usr/include/KF5/KCompletion/KLineEdit
/usr/include/KF5/KCompletion/KHistoryComboBox
/usr/include/KF5/KCompletion/kcompletion_export.h
/usr/include/KF5/KCompletion/KCompletionBox
/usr/include/KF5/KCompletion/kcompletion.h
/usr/include/KF5/KCompletion/KComboBox
/usr/include/KF5/KCompletion/ksortablelist.h
/usr/include/KF5/KCompletion/KCompletion
/usr/include/KF5/KCompletion/kcompletionbase.h
/usr/include/KF5/KCompletion/kcompletionmatches.h
/usr/include/KF5/KCompletion/KPixmapProvider
/usr/share/
/usr/share/doc/
/usr/share/doc/libkf5completion-dev/
/usr/share/doc/libkf5completion-dev/copyright
/usr/lib/x86_64-linux-gnu/libKF5Completion.so
/usr/share/doc/libkf5completion-dev/changelog.Debian.gz