rder rea- reac read reae rear reau reca recc recd rece reci recr recu reda redc redd rede redi redr redu reed rega regd rege regi regr regu reia reid reii reir reiu rera rerd rere rerg reri reru reue reuu riaa riad riai riau rica ricc rice rida ridc ridd ride ridi ried rier rieu riga rige rigg rigi rigu riia rire riri riue rrad rred rrrr ruad ruag ruca ruce ruci ruda rudd rude rudi rued ruer ruga ruge rugg rugi ruid rura rurc rurd rure ruri ruru ruud u-ie uaca uair uarc uaru uaua ucad ucai ucar ucca ucci ucdc ucdd ucea ucrc ucua udaa udad udar udau udca uddi udea uder udge udic udid udig udir udra ueda ueir ugar ugcc ugcg ugia ugra ugri ugur uguu uica uige uira uirr urac urad urai urau urca urci urda urde urdu ure- urea ured urga urge urgi urgu uria uric urie uriu urra urre urri urur uuri uuuu