/usr/ is in libkf5mime-dev 16.04.2-1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/
/usr/include/KF5/
/usr/include/KF5/KMime/
/usr/include/KF5/KMime/KMime/
/usr/include/KF5/KMime/KMime/Content
/usr/include/KF5/KMime/KMime/ContentIndex
/usr/include/KF5/KMime/KMime/DateFormatter
/usr/include/KF5/KMime/KMime/HeaderParsing
/usr/include/KF5/KMime/KMime/Headers
/usr/include/KF5/KMime/KMime/KMimeMessage
/usr/include/KF5/KMime/KMime/MDN
/usr/include/KF5/KMime/KMime/Message
/usr/include/KF5/KMime/KMime/NewsArticle
/usr/include/KF5/KMime/KMime/Types
/usr/include/KF5/KMime/KMime/Util
/usr/include/KF5/KMime/kmime/
/usr/include/KF5/KMime/kmime/kmime_content.h
/usr/include/KF5/KMime/kmime/kmime_contentindex.h
/usr/include/KF5/KMime/kmime/kmime_dateformatter.h
/usr/include/KF5/KMime/kmime/kmime_export.h
/usr/include/KF5/KMime/kmime/kmime_header_parsing.h
/usr/include/KF5/KMime/kmime/kmime_headers.h
/usr/include/KF5/KMime/kmime/kmime_mdn.h
/usr/include/KF5/KMime/kmime/kmime_message.h
/usr/include/KF5/KMime/kmime/kmime_newsarticle.h
/usr/include/KF5/KMime/kmime/kmime_types.h
/usr/include/KF5/KMime/kmime/kmime_util.h
/usr/include/KF5/kmime_version.h
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/cmake/
/usr/lib/x86_64-linux-gnu/cmake/KF5Mime/
/usr/lib/x86_64-linux-gnu/cmake/KF5Mime/KF5MimeConfig.cmake
/usr/lib/x86_64-linux-gnu/cmake/KF5Mime/KF5MimeConfigVersion.cmake
/usr/lib/x86_64-linux-gnu/cmake/KF5Mime/KF5MimeTargets-debian.cmake
/usr/lib/x86_64-linux-gnu/cmake/KF5Mime/KF5MimeTargets.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_KMime.pri
/usr/share/
/usr/share/doc/
/usr/share/doc/libkf5mime-dev/
/usr/share/doc/libkf5mime-dev/changelog.Debian.gz
/usr/share/doc/libkf5mime-dev/copyright
/usr/lib/x86_64-linux-gnu/libKF5Mime.so