otti otto ottu otur oucc ouer oufc oufe ouff ouie ouii ouir ouit oule oulu our- oure ouro ourt out- oute outi outo ouu- rccc rcet rcfc rcic rcle rctc rcti recc rece reci recr rect recu reef reel reet refe reff refi refl refr reft refu reif reii reil reir reit reiu rele rell relo relt reof reol reot reou rere reri rero rert reru rete reti reto retr rett reue reuf reul reut reuu rfef rffc rffl rfic rftc ricc rice rico rict rief riel rier riet rieu rife riff rift rifu riif rile rill rilo rilu riol riot riou rire riri rite riti ritl rito ritt ritu riue rlee rlef rleu rlif rocc roce roco roel roer roet rofc rofe roff rofl rofo roif roil roio roir roit roiu role rolf roll rolo rolt roof rooi rool roor root rorc rore rori roro rort roru rotc rote roti rotl roto rotr rott roue rouf roul rout rrfc rrif rrle rrrr rtcc rtce rtee rtei rtfc rtle rtlt ruce ruci ruct ruel ruer ruet rufc rufe ruff rufo ruft ruif ruit rule rull rulo rurc rure ruri ruro ruru rute ruti rutl ruto rutt rutu tccc tccu tcfc tctc tcul tecl teco tecr tect teec teef teel teer teet tefc teff tefi tefl teft teic teie teil teir teiu tel- telc tele teli tell telo telt telu teor ter- terc tere terf teri tero terr teru tete teti teto tetr tett tetu teut tfcu tfec tfot tftc ticc tice tico tie- tiee tief tiei tiel tieo tier tiet tiff tifo tift tiit tiiu tile till tilo tilr tilt tiou tire tiri tirl tiro tirr tiru titc tite titi tito titt titu tlco tlli toce toci toco toee toei toer toet toff tofi tofo toft tofu toie toil toit tol- tole toli toll tolo tolt tolu toof tool toor toot torc tore torf tori toro torr tort toru totc tote toti toto totr tott toui toul tour tout trcc trcl tre- trec tree tref trei treo tret treu trfc trfr tri- tric trie trif tril trio trit troc troe troi troo trot trou trtc trte trtr truc true trut truu tteo tter ttfc ttff ttoe tttt ttul tucc tuco tuei tuel tuer tuet tufc tufe tuff tufi tufo tuft tufu tuil tuit tuiu tule tuli tull tulo tulu tuor turc ture turf turi turo turr turt turu tute tuti tutl tuto tutt tutu tuuo u-ie ucci ucel ucil ucio ucrc ucut ueir uele ueli uell ufcu ufel ufer uffe uile uirr ulcc ulco ulee uleo ulfe ulft ulic ulie ulle ulli ullo ullr ulo- uloc ulti ulto ultt ulul uocc uofl uofo uolc uor- uore urci ure- uret urfe urff urfi urft uric urie urif uriu urle uro- urol uroo urre urri urte urur urut utec utel uter utfo util utor utri utti utto uttu uulu uuoc uuri uutf uuuu