/usr/ is in libkf5webkit-dev 5.18.0-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/x86_64-linux-gnu/cmake/
/usr/lib/x86_64-linux-gnu/cmake/KF5WebKit/
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/cmake/KF5WebKit/KF5WebKitTargets-debian.cmake
/usr/lib/x86_64-linux-gnu/cmake/KF5WebKit/KF5WebKitConfigVersion.cmake
/usr/lib/x86_64-linux-gnu/cmake/KF5WebKit/KF5WebKitTargets.cmake
/usr/lib/x86_64-linux-gnu/cmake/KF5WebKit/KF5WebKitConfig.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_KDEWebKit.pri
/usr/include/
/usr/include/KF5/
/usr/include/KF5/kdewebkit_version.h
/usr/include/KF5/KDEWebKit/
/usr/include/KF5/KDEWebKit/kwebpage.h
/usr/include/KF5/KDEWebKit/KWebPluginFactory
/usr/include/KF5/KDEWebKit/KWebWallet
/usr/include/KF5/KDEWebKit/KGraphicsWebView
/usr/include/KF5/KDEWebKit/kgraphicswebview.h
/usr/include/KF5/KDEWebKit/kwebview.h
/usr/include/KF5/KDEWebKit/KWebView
/usr/include/KF5/KDEWebKit/kwebwallet.h
/usr/include/KF5/KDEWebKit/KWebPage
/usr/include/KF5/KDEWebKit/kdewebkit_export.h
/usr/include/KF5/KDEWebKit/kwebpluginfactory.h
/usr/share/
/usr/share/doc/
/usr/share/doc/libkf5webkit-dev/
/usr/share/doc/libkf5webkit-dev/copyright
/usr/lib/x86_64-linux-gnu/libKF5WebKit.so
/usr/share/doc/libkf5webkit-dev/changelog.Debian.gz