a-fu aaaa aaac aaaf aaar aaca aacc aacf aacr aact aacu aafa aafc aaff aara aarc aart aaru aata aatc aatf aatt ac-t acaa acac acar acat acca accc accf acct accu acfc acft acr- acra acrc acrr acta actc actf actt actu acu- acuf acur acut afaa afar afat afca afcc afcu affa affc afft afr- afra afrc afru afta aftc afua arac araf arar arat arau arc- arca arct arfa arfc arff arft arfu arr- arra arrc arrr arrt arru arta artc artr arua arut at-t ataa atac atar atat atca atcc atcf atcr atfc atra atrc atru atta attr attu atua atuc atur auaa auca auct aufc aur- aura aut- caaa caac caaf caat cac- caca cacc cacr cafa cafc caff cafu cara carc carf carr cart cat- cata catc catf catt catu cauc cauf caut ccaa ccac ccaf ccar ccat ccca cccc cccf cccu ccfa ccfc ccff ccra ccrc ccrf ccrt cctc cctt ccuc ccut cfaa cfac cfar cfca cfcf cffr cfra cfrt cfta cftc cftr crac craf crar crat crau crca crcc crcr crfc crrt crtc crtf crut ctca ctcf ctfc ctrc ctta cuau cuca cucc cufa cufc cuff cura curf curr curt cut- cuta cutc cutt faaa faac faca facc fact fafa fafc faff fara farc farr fart faru fata fatc fatf fatt faur faut fcar fcat fcca fccf fcra ffar ffcc ffff ffrr fftf frac frat frau frcc frfc frta ft-c ftfc ftuc fuar fuat fuc- fuca fuct fufc fuff fufu fur- fura furr furt futa futu raaf raat rac- raca racc ract racu rafa rafc raff raft rara rarf rata ratf ratt ratu raua rauc rauf raut rcac rcaf rccc rcfc rctc rffc rftc rrat rrfc rrrr rtca rtcc rtfc ruca ruct rufa rufc ruff ruft rura rurc ruru ruta rutt rutu taa- taaf taar taat taca tacc tact tafa tafc taff taft tara tarc tarf tarr tart taru tata tatr tatt tatu taua tauc taur taut tcca tccc tccu tcfc tctc tfca tfcu tftc traa trac traf trat trau trca trcc trfc trfr trra trtc trtr truc trut truu ttfa ttfc ttff tttt tuar tuat tuca tucc tufa tufc tuff tuft tufu tura turc turf turr turt turu tuta tutt tutu uaca uafa uarc uart uaru uata uatu uaua ucar ucat ucca ucfa ucrc ucua ucut ufcu uffa ufra urac urat urau urca urfa urff urft urra urur urut utac utau uttu uuta uutf uuuu