aaaa aaac aaae aaaf aaar aaca aacc aace aacf aaco aacr aact aaea aaec aafa aafc aaff aaoe aaoo aara aarc aare aaro aart aata aatc aatf aatt ac-t acaa acac acae acar acat acca accc acce accf acco acct ace- acea acec acer acet acfc acfe acft acoa acoe acor acot acr- acra acrc acre acro acrr acta actc acte actf acto actt aeac aeaf aect aeer aer- aera aerc aero aeta aetc aetf aeto aetr aett afaa afao afar afat afca afcc afee afer afet affa affc affo afft afoa afoe afoo afor afr- afra afrc afre afro afta aftc afte aoca aoce aora aort aotc aotf arac arae araf arar arat arc- arca arce arco arct area arec aree aref areo aret arfa arfc arff arft aroa aroe aroo aror arr- arra arrc arre arro arrr arrt arta artc arte arto artr at-t ataa atac atae atar atat atca atcc atcf atco atcr atea atec atee atef ateo ater atfc atfe atoc atoe atof ator atot atra atrc atre atro atta atte atto attr caaa caac caaf caat cac- caca cacc cace caco cacr caec caer cafa cafc cafe caff caor cara carc care carf caro carr cart cat- cata catc cate catf cato catt ccaa ccac ccaf ccar ccat ccca cccc cccf ccee ccfa ccfc ccff ccoc ccra ccrc ccre ccrf ccrt cctc cctt ceac cear ceat cec- ceca cece ceco cect ceec cef- cefa cefc ceor cer- cera cerc cere cerf cero cert cet- ceta cete ceto cfaa cfac cfae cfao cfar cfca cfcf cfco cffr cfoa cfor cfra cfre cfrt cfta cftc cfte cftr coat coca coce coco coct cofc cofe coff coft coof coot cor- cora corc core corf coro corr cort cota cotc cote coto cott crac craf crar crat crca crcc crce crcr cre- crea crec cree creo cret crfc croc croe croo cror crot crrt crtc crtf ctae ctca ctcf ctec ctfc ctfo ctor ctot ctrc ctta eaaf eaca eacc eaec eara eare earo eart eata eate ecaa ecac ecao ecar ecat ecca eccc ecce ecco ecct ecef ecfa ecfc ecfr eco- ecot ecra ecrc ecrf ecrr ect- ecta ectc ectf ecto eeca eeea eeee eefa eefe eeoc eera eerc eero eeta eetc eete efca efco efeo efet effa efor eft- efta eora eore eota eotc eoto eraf erat erca ercc erce erec erer eret erfc erft eroc eroe eroo erra errc erre erro erta etat etcc etco etec etee eter etfa etfc etfe etoe etra etre etro etta ette etto faaa faac faca facc face fact fafa fafc fafe faff fafo fara farc fare faro farr fart fata fatc fate fatf fato fatt fcar fcat fcca fccf fcot fcra fcto feaf fear feat fece fect feer feet fefc fefe feff fefo feof fera ferc fere fero ferr fert feta fete fetr fett ffar ffcc ffee ffff ffrr fftf foaf foar foca foce foco foer fofo foof foot for- fora fore foro forr fort fota fote foto fott frac frae frat frcc frea free freo fret frfc froe frot frta ft-c ftea fter ftfc o-eo oaer oafc oafo oara oare oate ocac ocat occa occc occt oce ocee ocef ocet ocfa ocra ocre ocro ocrr oct- octa octe octo oec- oeca oecc oeec oera oere oeta ofcr ofer off- offa offc offe offo offr ofor ofra ofre ofta ooaa oocr ooer ooff oooo oora oore oort orac orae orao orar orat orca orce orco ore- orea orec oreo orer orfe orff oro- oroe orof oror orot orra orro orta ortc orte orto otac otar otea otee oter otfc oto- otoe otof otoo otor otra otre otro otta otte otto raaf raat rac- raca racc race raco ract raec raef raer rafa rafc rafe raff raft raoc rara rare rarf raro rata rate ratf rato ratt rcac rcaf rccc rcet rcfc rctc rea- reac reae reaf reao rear reat reca recc rece recr rect reef reet refe reff refr reft reof reot rera rere rero rert reta rete reto retr rett rfae rfef rffc rftc roaf roar roat roca rocc roce roco roea roer roet rofc rofe roff rofo roof roor root rora rorc rore roro rort rota rotc rote roto rotr rott rrat rrfc rrrr rtca rtcc rtce rtee rtfc taa- taaf taar taat taca tacc tace taco tact taec taer tafa tafc tafe taff tafo taft taoa taor tara tarc tare tarf taro tarr tart tata tate tato tatr tatt tcca tccc tcfc tctc teac tear teat teca teco tecr tect teec teef teer teet tefc teff teft teor ter- tera terc tere terf tero terr teta tete teto tetr tett tfae tfca tfec tfot tftc toat toca toce toco toea toee toer toet tofa toff tofo toft tooa toof toor toot tora torc tore torf toro torr tort tota totc tote toto totr tott traa trac trae traf trao trat trca trcc tre- trea trec tree tref treo tret trfc trfr troa troc troe troo trot trra trtc trte trtr tteo tter ttfa ttfc ttff ttoe tttt