r-co- ra-ra raaor raard racal racom radal radar radau radla radlo radom raduc radul ralla rallo ramac ramal ramar ramco ramla ramma rammu ramol ramor ramul raoul rauco rauda rauma rccar rcmac rcola rcolo rcuda rdllr rdram rlmdl ro-ro roald roall rocar rocca rocco rocoa rocor rocou rodau rodda rodl rodoc rodor rolao rolla rollc rollo rolmo rolua romac romad romal romao roodu rooma roomu roral roram rorra roull rouma roumm roura ruala rucul rudar rudra rullo rumal rummo rummu rumor ruomu rural uacrr uarda uaroo udala udall udara udol udoll udora ulala ulalu ulama ullal ullam ullar ullca ulloa ullur ulrum ulula ululu uluru umala umaru umour umudu uralo urlam urlar urola urour urram urrao urucu uruma uuard uudam uumaa uurad uuuuu