This is the revision history for seen in <freenode.net:#perlbot>

factoid_idsubjectcopulapredicateauthornamespace
11595 seen is <seen <arg>>
Not Available
digitok <*:##NULL>
11594 seen is <seen <args>>
Not Available
digitok <*:##NULL>
5425 seen is learn to use nickserv and /whois perlbot <*:##NULL>