okuru olala olaru ollam ollur olmod olomu olord olour olumu omala omalo omama omara omarr omkar omoka omoro omuku omulu omuma omura ooola ooooo oraal orama oramo orara ordal ordro orkla orkom orlok orm-d ormod ormur orodo orold orolu oromo oroua orrum oruku oruro ouada ouaka ouako ouara oudka oulad oullo ouoro oural ourol ra-ra raaor raard radal radar radau radka radla radlo radom radul rakaa rakam ralla rallo ramak ramal ramar ramla ramma rammu ramol ramor ramul raoul rauda rauma rdllr rdram rlmdl ro-ro roald roall roark rodau rodda rodl rodok rodor rokal rokkk rokua rolao rolla rollo rolmo rolok rolua romad romal romao roodu rooma roomu roral roram rorra rouko roulk roull rouma roumm roura ruaka ruala ruark rudak rudar rudka rudkk rudok rudra rukla rullo rumal rummo rummu rumor ruomu rurak rural rurka uarda uaroo udaka udala udall udara udoka udol udoll udora ukala ukodo ukula ukuma ulala ulalu ulama ullak ullal ullam ullar ulloa ullur ulrum uluka ulula ululu uluru umala umaru umour umudu uralo urduk urlam urlar urola urour urram urrao uruma uuard uudam uumaa uuork uurad uuuuu