pupl pupu pur- pure puri purl puro purp purr puru reef reel reem reep refe reff refi refl refr refu reif reii reil reim reir reiu rele rell relm relo relp reme remi remo remp reof reol reop reou repe repi repl repo repp repr repu rere reri rero reru reue reuf reul reup reuu rfef rfem rffl rief riel riem riep rier rieu rife riff rifu riif rile rill rilo rilp rilu rime rimi rimm rimo rimu riol riom riou ripe ripi ripl ripp ripr rire riri riue rlee rlef rleu rlif rlml rmif rmll rmrp roel roer rofe roff rofl rofo roif roil roio roir roiu role rolf roll rolm rolo rolp rome romi romm romo romp roof rooi rool room roop roor rope ropo rore rori roro roru roue rouf roul roum roup rpii rpoe rpof rrif rrle rrmp rrrr rrum ruel ruer rufe ruff rufo ruif rule rull rulo rume rumi ruml rumm rumo rump rupe rupp rure ruri ruro rurp ruru u-ie u-rp ueir uele ueli uell uepi ufel ufer uffe ufip uile uiml uipi uirr ulee uleo ulfe ulie ulim ulle ulli ullo ullr ulme ulmi ulmo ulmu ulo- ulul ulum umer umff ummo umoe umol umor umpe umri uofl uofm uofo uoml uomo uor- uore upie upim uplo upme upml upor uppe uppp uppu upri upup ure- urfe urff urfi urie urif urim uriu urle urmi uro- urol urom uroo urpo urre urri urum urup urur uulu uuri uuuu