/usr/share/doc/gstreamer1.0-pocketsphinx/changelog.Debian.gz is in gstreamer1.0-pocketsphinx 0.8.0+real5prealpha-1ubuntu2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/gstreamer1.0-pocketsphinx/../libpocketsphinx3/changelog.Debian.gz