/usr/share/doc/ is in libghc-diagrams-solve-doc 0.1-2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/libghc-diagrams-solve-doc/
/usr/share/doc/libghc-diagrams-solve-doc/html/
/usr/share/doc/libghc-diagrams-solve-doc/html/index-frames.html
/usr/share/doc/libghc-diagrams-solve-doc/html/mini_Diagrams-Solve-Polynomial.html
/usr/share/doc/libghc-diagrams-solve-doc/html/haddock-util.js
/usr/share/doc/libghc-diagrams-solve-doc/html/Diagrams-Solve-Polynomial.html
/usr/share/doc/libghc-diagrams-solve-doc/html/src/
/usr/share/doc/libghc-diagrams-solve-doc/html/src/Diagrams-Solve-Polynomial.html
/usr/share/doc/libghc-diagrams-solve-doc/html/src/hscolour.css
/usr/share/doc/libghc-diagrams-solve-doc/html/src/Diagrams-Solve-Tridiagonal.html
/usr/share/doc/libghc-diagrams-solve-doc/html/minus.gif
/usr/share/doc/libghc-diagrams-solve-doc/html/plus.gif
/usr/share/doc/libghc-diagrams-solve-doc/html/mini_Diagrams-Solve-Tridiagonal.html
/usr/share/doc/libghc-diagrams-solve-doc/html/hslogo-16.png
/usr/share/doc/libghc-diagrams-solve-doc/html/index.html
/usr/share/doc/libghc-diagrams-solve-doc/html/frames.html
/usr/share/doc/libghc-diagrams-solve-doc/html/diagrams-solve.txt
/usr/share/doc/libghc-diagrams-solve-doc/html/synopsis.png
/usr/share/doc/libghc-diagrams-solve-doc/html/Diagrams-Solve-Tridiagonal.html
/usr/share/doc/libghc-diagrams-solve-doc/html/doc-index.html
/usr/share/doc/libghc-diagrams-solve-doc/html/ocean.css
/usr/share/doc/libghc-diagrams-solve-doc/copyright
/usr/share/doc/libghc-diagrams-solve-doc/changelog.Debian.gz