reka reke rema reme remn rena rene renk renn renu rera rere reru reue reuk reuu rman rnbr rrkm rrna rrrr rrum rrun ruan ruba rubb rube rubu ruen ruer ruka ruke rukk rukn ruku ruma rumb rume rumm runa rune runk runn rura rure ruru ruun uaru uaua ubar ubba ubbe ubek uber ubra ueba ukba ukek ukeu ukma ukra ukum ukur umaa umak uman umar umb- umba umbe umer umka umma umra unaa unam unan unar unau unbe uneb unee unen uner unka unke unkn unma unmr unna unne unra unum uran urau urba urbe ure- urea urka urke urma urna urne urra urre uruk urum urun urur uuen uuuu