/usr/ is in libexempi-dev 2.2.1-1ubuntu1.
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..
/usr/include/
/usr/include/exempi-2.0/
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/libexempi.a
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/lib/x86_64-linux-gnu/pkgconfig/exempi-2.0.pc
/usr/include/exempi-2.0/exempi/
/usr/include/exempi-2.0/exempi/xmp++.hpp
/usr/include/exempi-2.0/exempi/xmp.h
/usr/include/exempi-2.0/exempi/xmperrors.h
/usr/include/exempi-2.0/exempi/xmpconsts.h
/usr/share/
/usr/share/doc/
/usr/share/doc/libexempi-dev/
/usr/share/doc/libexempi-dev/copyright
/usr/lib/x86_64-linux-gnu/libexempi.so
/usr/share/doc/libexempi-dev/README
/usr/share/doc/libexempi-dev/TODO
/usr/share/doc/libexempi-dev/NEWS.gz
/usr/share/doc/libexempi-dev/AUTHORS
/usr/share/doc/libexempi-dev/changelog.Debian.gz