/usr/ is in libebook-contacts1.2-dev 3.28.1-1ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/
/usr/include/evolution-data-server/
/usr/include/evolution-data-server/libebook-contacts/
/usr/include/evolution-data-server/libebook-contacts/e-address-western.h
/usr/include/evolution-data-server/libebook-contacts/e-book-contacts-enumtypes.h
/usr/include/evolution-data-server/libebook-contacts/e-book-contacts-types.h
/usr/include/evolution-data-server/libebook-contacts/e-book-query.h
/usr/include/evolution-data-server/libebook-contacts/e-contact.h
/usr/include/evolution-data-server/libebook-contacts/e-name-western.h
/usr/include/evolution-data-server/libebook-contacts/e-phone-number.h
/usr/include/evolution-data-server/libebook-contacts/e-source-backend-summary-setup.h
/usr/include/evolution-data-server/libebook-contacts/e-vcard.h
/usr/include/evolution-data-server/libebook-contacts/libebook-contacts.h
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/lib/x86_64-linux-gnu/pkgconfig/libebook-contacts-1.2.pc
/usr/share/
/usr/share/doc/
/usr/share/doc/libebook-contacts1.2-dev/
/usr/share/doc/libebook-contacts1.2-dev/copyright
/usr/share/gir-1.0/
/usr/share/gir-1.0/EBookContacts-1.2.gir
/usr/share/vala/
/usr/share/vala/vapi/
/usr/share/vala/vapi/libebook-contacts-1.2.deps
/usr/share/vala/vapi/libebook-contacts-1.2.vapi
/usr/lib/x86_64-linux-gnu/libebook-contacts-1.2.so
/usr/share/doc/libebook-contacts1.2-dev/changelog.Debian.gz