ccccc cccii ccifc cciii ceci- cecie cecri ceere cerc- cerce cerci cerec cerer ceric cerie cerre cicer cifer circe ciric cirie cirr- cirri crece creer crice crier eeeee eerie efere eferi effer effie efrei eirie erere erice erier eriff eriic feere feier ferce feric ferie ferr- ferre ferri fieee fieri fifer fifie firee firei firer firie firre freei freer freir frere frice frier iceci icici icier iecee ieiri ierei if-- ifere iiiee iiiii ircii irece rcirc recce reece reefe reere refer reffe reice reiff rere- reree reric rerir ri-fi ricci ricer riefe rifer riife ririe