a-do a-fu aaaa aaac aaad aaae aaaf aaar aaca aacc aacd aace aacf aaco aacr aact aacu aada aadc aade aadt aadu aaea aaec aafa aafc aafd aaff aaoe aaoo aara aarc aard aare aaro aart aaru aata aatc aatf aatt ac-t acaa acac acad acae acar acat acca accc accd acce accf acco acct accu acda acdc acde acdf acdt ace- acea acec aced acer acet acfc acfd acfe acft acoa acod acoe acor acot acou acr- acra acrc acre acro acrr acta actc acte actf acto actt actu acu- acue acuf acuo acur acut adaa adac adad adae adao adar adat adcc adda addc addd adde addo addr addu adea adee adeo ader adet adfa adfc adoc adod adoe adoo ador adot adra adre adro adta adua adue adur aeac aeaf aect aede aedt aeer aer- aera aerc aerd aero aeta aetc aetf aeto aetr aett afaa afad afao afar afat afca afcc afcu afdc afee afer afet affa affc affo afft afoa afoe afoo afor afr- afra afrc afre afro afru afta aftc afte afua afud afue aoca aoce aoeu aora aort aotc aotd aotf aouf aout arac arad arae araf arar arat arau arc- arca arce arco arct arda ardc arde ardf ardo ardu area arec ared aree aref areo aret areu arfa arfc arff arft arfu aroa arod aroe aroo aror arr- arra arrc arre arro arrr arrt arru arta artc arte arto artr arua arud arue arut at-t ataa atac atad atae atar atat atca atcc atcf atco atcr atdt atea atec ated atee atef ateo ater atfc atfe atoc atod atoe atof ator atot atra atrc atre atro atru atta atte atto attr attu atua atuc atur auaa auca auce auct audc aude audo auer aufc aufe aur- aura aurd aure auro aut- aute auto c-cd caaa caac caaf caat cac- caca cacc cace caco cacr cada cadc cadd cade cado cadr cadu caec caer caeu cafa cafc cafe caff cafu caod caor cara carc card care carf caro carr cart cat- cata catc catd cate catf cato catt catu cauc cauf cauo caut ccaa ccac ccad ccaf ccar ccat ccca cccc cccf cccu ccdc ccdf ccdr cced ccee ccfa ccfc ccfd ccff ccoc ccod ccra ccrc ccre ccrf ccrt cctc cctt ccuc ccut cd-e cd-r cdaa cdac cdad cdda cddr cdec cdef cder cdfa cdfe cdot cdre ceac cead cear ceat cec- ceca cece ceco cect ceda cedd cede cedo cedt cedu ceec cef- cefa cefc ceor ceou cer- cera cerc cerd cere cerf cero cert cet- ceta cete ceto cfaa cfac cfae cfao cfar cfca cfcf cfco cfda cffr cfoa cfor cfra cfre cfrt cfta cftc cfte cftr coad coat coca coce coco coct cocu coda codd code coed cofc cofe coff coft cood coof coot cor- cora corc cord core corf coro corr cort cota cotc cote coto cott cotu coua coud coue cour cout crac craf crar crat crau crca crcc crce crcr crda crdc cre- crea crec cred cree creo cret creu crfc croc crod croe croo cror crot crrt crtc crtf crud crue crut ctae ctca ctcf ctec ctfc ctfo ctor ctot ctrc ctta cuau cuca cucc cuce cuda cude cued cuer cufa cufc cuff cufo cura curd cure curf curo curr curt cut- cuta cutc cute cuto cutt daad daae daar daau daca dace dact dada dade dado dadu daer daeu dafa dafc dafe daff dafo daft daou dara darc dard dare darf daro darr dart daru data date dato datr datt datu daud daue daur daut dcca dccc dcct dccu dcfc dcra dctc dddd ddoc ddot ddrc ddre deac dead deae deaf dear deau dec- deca decc decd dece deco dect deda dedd dede dedo dedu deed deef deer deet defe deff defo deft deor der- dera derc dere derf dero derr deta dete deto detr deua deue deur deut dfaf dfcc dfco dfcu dfdt dfer dffa dfoe dfrf dftr doae doar doat doca doce doco doct docu dod- doda dodd dode dodo doea doer doff dood doof door doot dora dorc dord dore dorf doro dorr dort doru dota dotd dote doto dott douc doud doue douf dour dout draa drac drad draf drar drat drau drca drda drea dred dree dref dret drfc drod drof drot drou drra drua drue drut druu dtaa dtac dtcc dted dtfc dtor dtot duaa duad duar duat duca duce duco duct duda dudd dude dudo dudu duer duet dufc duff dufu duo- dura dure duro durt duru duta dute duur duut eaaf eaca eacc eada eadd eaec eara eard eare earo eart eata eate ecaa ecac ecad ecao ecar ecat ecca eccc ecce ecco ecct ecdc ecdf eced ecef ecfa ecfc ecfr eco- ecod ecot ecou ecra ecrc ecrf ecrr ecru ect- ecta ectc ectf ecto ecua edac edad edar edca edda eddc edde eddo ede- edea eder edfa edfu edoc edod edou edra edru edta educ edur eeca eede eedu eeea eeee eefa eefe eeoc eera eerc eero eeta eetc eete eetu efca efco efda efeo efet effa efor eft- efta eftu efua eocd eode eora eore eota eotc eotd eoto erad eraf erat erau erca ercc erce erda erde erdf erec ered erer eret erfc erft eroc erod eroe eroo erra errc erre erro erta ertu erua eruc erur etat etcc etco etec etee eter etfa etfc etfe etoe etra etre etro etta ette etto ettu etua eucd eude euer eufc eur- eura eurc eure euro eurt faaa faac faad faca facc face fact fada fadd fade fado fafa fafc fafe faff fafo fara farc fard fare faro farr fart faru fata fatc fate fatf fato fatt faud faue faur faut fcar fcat fcca fccf fcda fcot fcra fcto fdca fdoa fdoc fdot fdtc fead feaf fear feat fece fect feda fede feed feer feet fefc fefe feff fefo feod feof fera ferc ferd fere fero ferr fert feru feta fete fetr fett fetu feud ffar ffcc ffee ffff ffrr fftf foad foaf foar foca