Instead of using the .deb from http://debian.mirror..., I used this one:
wget http://archive.ubuntu.com/ubuntu/pool/universe/h/hyphen/openoffice.org-hyphenation-en-us_2.3.1-1_all.deb sudo dpkg --force-all -i (that file) do-release-upgrade --devel-release
"System upgrade is complete."
Instead of using the .deb from http:// debian. mirror..., I used this one:
wget http:// archive. ubuntu. com/ubuntu/ pool/universe/ h/hyphen/ openoffice. org-hyphenation -en-us_ 2.3.1-1_ all.deb
sudo dpkg --force-all -i (that file)
do-release-upgrade --devel-release
"System upgrade is complete."