oria oric oril orio orla orlo orlu orma ormo oro- orom oror orra orri orro orub orum ouac oucc ouch ouii ouir oula oulu ouma oumi our- oura ouro ouu- raab raam raba rabb rabi rabl rabo rabu rac- raca racc rach raci raco racu raha rahi rahl rahm rahr rahu raia raic raii rail raim rair raiu rala ralb rall ralo rama ramb rami raml ramm ramo ramu raob raoc raoh raol raom rara rarb rari raro raua raub rauc raul raum rbbb rbbr rbcl rboh rcac rcbc rcbo rccb rccc rchb rchm rcic rhau rhcm rhib rhim rhio rhli rhoa rhob rhoc rhoh rhum riaa riab riah riai rial riam riau rib- riba ribo ribu rica ricc rich rico riha riho riia rila rill rilo rilu rima rimi rimm rimo rimu riol riom riou riri rlab rlml rlua rmll roab roam roar rob- roba robb robi robo robu roca rocc roch roco roha rohl rohm rohr rohu roia roil roio roir roiu rola roll rolm rolo roma romb romi romm romo roob rooi rool room roor rora rorc rori roro roru roua roub rouh roul roum rrah rrmc rrrr rrum ruah ruba rubb rubi rubu ruca ruch ruci ruhh ruhi ruhl ruhm ruhr rula rull rulo ruma rumb rumi ruml rumm rumo rura rurc ruri ruro ruru uabc uaca uair uamc uaoc uarc uaru uaua ubac ubal ubar ubba ubbi ubbo ubic ubii ubir ubla ubli ublo uboc ubra ucai ucal ucam ucar ucbc ucca ucci ucha uchi ucho ucil ucio ucla ucmc ucom ucrc ucua uhcl uhoh uhuh uica uima uiml uira uirr ulaa ulai ulam ular ulbc ulcc ulch ulco ulic ulim ulla ulli ullo ullr ulma ulmi ulmo ulmu ulo- uloc ulua ulul ulum umaa umac umai umar umb- umba umbi umbo umla umma ummo umol umor umra umri uocc uolc uoml uomo uor- urac urai ural urao urau urba urbi urca urch urci urho uria urib uric urim uriu urla urma urmi uro- uroa urol urom uroo urra urrh urri urum urur uulu uuoc uuri uuuu