<oerjan> learn Isms are philosophies, religions or ideologies that have branched off from older ones, such as Leninism or Buddhism. Etymologically "ism" is a backformation from portmanteaus on "schism".

#!/usr/bin/perl
sub k{my$t;$t=~y/IVXLC/XLCDM/,$t.=("",I,II,III,IV,V,VI,VII,VIII,IX)[$_]for/./g;$r{$t}=$_;$t}k for s""\$"..4e3;print $r{(shift=~/(\w+)/)[0]},$/