/usr/lib/ghc-doc/hoogle/hS3.txt is in libghc-hs3-doc 0.5.7-3build1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/ghc-doc/hoogle/../../../share/doc/libghc-hs3-doc/html/hS3.txt
/usr/lib/ghc-doc/hoogle/../../../share/doc/libghc-hs3-doc/html/hS3.txt