/usr/lib/ghc-doc/hoogle/libghc-comonad-doc.txt is in libghc-comonad-doc 4.2.7.2-3build1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/ghc-doc/hoogle/../../../share/doc/libghc-comonad-doc/html/comonad.txt