a-fu aaaa aaac aaaf aaar aaca aacc aacf aaco aacr aact aacu aafa aafc aaff aaoo aara aarc aaro aart aaru aata aatc aatf aatt ac-t acaa acac acar acat acca accc accf acco acct accu acfc acft acoa acor acot acou acr- acra acrc acro acrr acta actc actf acto actt actu acu- acuf acuo acur acut afaa afao afar afat afca afcc afcu affa affc affo afft afoa afoo afor afr- afra afrc afro afru afta aftc afua aoca aora aort aotc aotf aouf aout arac araf arar arat arau arc- arca arco arct arfa arfc arff arft arfu aroa aroo aror arr- arra arrc arro arrr arrt arru arta artc arto artr arua arut at-t ataa atac atar atat atca atcc atcf atco atcr atfc atoc atof ator atot atra atrc atro atru atta atto attr attu atua atuc atur auaa auca auct aufc aur- aura auro aut- auto caaa caac caaf caat cac- caca cacc caco cacr cafa cafc caff cafu caor cara carc carf caro carr cart cat- cata catc catf cato catt catu cauc cauf cauo caut ccaa ccac ccaf ccar ccat ccca cccc cccf cccu ccfa ccfc ccff ccoc ccra ccrc ccrf ccrt cctc cctt ccuc ccut cfaa cfac cfao cfar cfca cfcf cfco cffr cfoa cfor cfra cfrt cfta cftc cftr coat coca coco coct cocu cofc coff coft coof coot cor- cora corc corf coro corr cort cota cotc coto cott cotu coua cour cout crac craf crar crat crau crca crcc crcr crfc croc croo cror crot crrt crtc crtf crut ctca ctcf ctfc ctfo ctor ctot ctrc ctta cuau cuca cucc cufa cufc cuff cufo cura curf curo curr curt cut- cuta cutc cuto cutt faaa faac faca facc fact fafa fafc faff fafo fara farc faro farr fart faru fata fatc fatf fato fatt faur faut fcar fcat fcca fccf fcot fcra fcto ffar ffcc ffff ffrr fftf foaf foar foca foco fofo foof foot for- fora foro forr fort fota foto fott foua four fout frac frat frau frcc frfc frot frou frta ft-c ftfc ftuc fuar fuat fuc- fuca fuct fufc fuff fufu fuor fur- fura furo furr furt futa futo futu oaau oafc oafo oara ocac ocat occa occc occt ocfa ocra ocro ocrr oct- octa octo ocur ofcr off- offa offc offo offr offu ofor ofra ofta ooaa oocr ooff oooo oora oort orac orao orar orat orca orco orff orfu oro- orof oror orot orra orro orta ortc orto otac otar otfc oto- otof otoo otor otra otro otta otto ottu otur ouac ouat oucc oufc ouff our- oura ouro ourt out- outa outo ouu- raaf raat rac- raca racc raco ract racu rafa rafc raff raft raoc rara rarf raro rata ratf rato ratt ratu raua rauc rauf raut rcac rcaf rccc rcfc rctc rffc rftc roaf roar roat roca rocc roco rofc roff rofo roof roor root rora rorc roro rort roru rota rotc roto rotr rott roua rouf rout rrat rrfc rrrr rtca rtcc rtfc ruca ruct rufa rufc ruff rufo ruft rura rurc ruro ruru ruta ruto rutt rutu taa- taaf taar taat taca tacc taco tact tafa tafc taff tafo taft taoa taor taou tara tarc tarf taro tarr tart taru tata tato tatr tatt tatu taua tauc taur taut tcca tccc tccu tcfc tctc tfca tfcu tfot tftc toat toau toca toco tofa toff tofo toft tofu tooa toof toor toot tora torc torf toro torr tort toru tota totc toto totr tott tour tout traa trac traf trao trat trau trca trcc trfc trfr troa troc troo trot trou trra trtc trtr truc trut truu ttfa ttfc ttff tttt tuao tuar tuat tuca tucc tuco tufa tufc tuff tufo tuft tufu tuor tura turc turf turo turr turt turu tuta tuto tutt tutu tuuo uaca uafa uaoc uarc uart uaru uata uatu uaua ucar ucat ucca ucfa ucrc ucua ucut ufcu uffa ufra uocc uofa uofo uor- urac urao urat urau urca urfa urff urft uro- uroa uroo urra urur urut utac utau utfo utor utto uttu uuoc uuta uutf uuuu