/usr/include/ is in libkf5kaddressbookimportexport-dev 4:17.12.3-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/KF5/
/usr/include/KF5/KAddressBookImportExport/
/usr/include/KF5/KAddressBookImportExport/KAddressBookContactSelectionDialog
/usr/include/KF5/KAddressBookImportExport/KAddressBookContactSelectionWidget
/usr/include/KF5/KAddressBookImportExport/KAddressBookExportSelectionWidget
/usr/include/KF5/KAddressBookImportExport/KAddressBookImportExportContactList
/usr/include/KF5/KAddressBookImportExport/KAddressBookImportExportPlugin
/usr/include/KF5/KAddressBookImportExport/KAddressBookImportExportPluginInterface
/usr/include/KF5/KAddressBookImportExport/KAddressBookImportExportPluginManager
/usr/include/KF5/kaddressbookimportexport/
/usr/include/KF5/kaddressbookimportexport/kaddressbook_importexport_export.h
/usr/include/KF5/kaddressbookimportexport/kaddressbookcontactselectiondialog.h
/usr/include/KF5/kaddressbookimportexport/kaddressbookcontactselectionwidget.h
/usr/include/KF5/kaddressbookimportexport/kaddressbookexportselectionwidget.h
/usr/include/KF5/kaddressbookimportexport/kaddressbookimportexportcontactfields.h
/usr/include/KF5/kaddressbookimportexport/kaddressbookimportexportcontactlist.h
/usr/include/KF5/kaddressbookimportexport/kaddressbookimportexportplugin.h
/usr/include/KF5/kaddressbookimportexport/kaddressbookimportexportplugininterface.h
/usr/include/KF5/kaddressbookimportexport/kaddressbookimportexportpluginmanager.h
/usr/include/KF5/kaddressbookimportexport_version.h