redd rede redr redu reeb reed reek reem reka reke rema reme rera rerd rere reru reue reuk reuu rrad rred rrkm rrrr rrum ruad ruba rubb rube rubu ruda rudd rude rued ruer ruka ruke rukk ruku ruma rumb rume rumm rura rurd rure ruru ruud uaru uaua ubar ubba ubbe ubek uber ubra ubud udaa udad udar udau udea udem uder udma udra uduk ueba ueda ukba ukek ukeu ukma ukra ukum ukur umaa umak umar umb- umba umbe umde umer umka umma umra urad urau urba urbe urda urde urdu ure- urea ured urka urke urma urra urre uruk urum urur uuuu