This is the revision history for cat approved software in <freenode.net:#perlbot>

factoid_idsubjectcopulapredicateauthornamespace
7861 cat approved software is irssi, bitlbee, vim, git, mutt (except by name), cat f00li5h <*:##NULL>
7860 cat approved software is irssi, bitlbee, vim, git, mutt (except by name) f00li5h <*:##NULL>
5550 cat approved software is irssi, bitlbee, vim perlbot <*:##NULL>