bbbee be-er beber bebic becic beebe beeri beffe befie beibi beice beier beife beire berbe berec berei berie berre berri bibbe biber bibic bibie bibri bicer biebe biefe biere bieri bifer biffi birie brece breef breer brere bribe brice briec brief brier brrrr cbeff ccccc cccii ccifc cciii cebec ceber ceci- cecie cecri ceere cerc- cerce cerci cerec cerer ceric cerie cerre ciber cibir cicer cifer circe ciric cirie cirr- cirri crebe crece creer cribb cribe crice crier ebber ebbie ebibe eeeee eerie efere eferi effer effie efrei eirie erbbe erber erere ericb erice erier eriff eriic fbcci febre feere feier ferce feric ferie ferr- ferre ferri fiber fibr- fibre fieee fieri fifer fifie firee firei firer firie firre freei freer freir frere frice frier icbrr iceci icici icier iecee ieiri ierei if-- ifere iiiee iiiii ircii irece rcirc rebbe rebec reber recce reece reefe reere refer reffe reice reiff rere- reree reric rerir ri-fi ribbi ribce riber ribie ricci ricer riefe rifer riife ririe