-ase a-be a-fu aaaa aaab aaae aaaf aaar aaas aaba aabb aabt aaea aaes aafa aafb aaff aara aare aars aart aaru aasa aase aasf aass aast aasu aata aatf aatt aaus abaa abab abae abaf abar abas abat abau abb- abba abbb abbe abbr abbs abbt abee aber abes abet abff abra abrs abs- absa abse absf abss absu abta abts abtu abua abue abuf abus abut aeaf aeas aebs aeer aer- aera aers aess aest aeta aetf aetr aett afaa afar afat afbs afee afer afes afet affa affs afft afr- afra afre afrs afru afsa afsb afst afta afte afts afua afue afus arab arae araf arar aras arat arau arba arbe arbs area aree aref ares aret areu arfa arfb arff arfs arft arfu arr- arra arre arrr arrs arrt arru ars- arsa arse arst arsu arta arte artr arts arua arub arue arut asaa asab asae asaf asar asas asat asau asba asbu asea asee aser ases aset asfa asra asrs asru assa asse assr asss asst assu asta astb aste astr asts asub asue asur asus at-t ataa atab atae atar atas atat atbs atea atee atef ater ates atfb atfe atfs atra atre atru atsb atse atst atta atte attr atts attu atua atub atur atus auaa aube auer aufe aufs aur- aura aure ausa ause aust ausu aut- aute auts baaa baaf baar baas baat baba babb babe babr babs babu baer baes baff baft bar- bara barb bare barf barr bars bart baru basa base basf bass bast basu bata bate batf bats batt batu bau- bauf baur bbas bbau bbbb bbbs bbeb bbet beaf bear beas beat beau beba bebb bebe beeb beef beer bees beet befa befe beff beft bera bere berr bers bert beru bes- besa bese bess best beta bete bets bett betu beur bfas bffs bfsr bfta bfts bftt brab brae braf bras brat brau brea breb bree bref brer bres bret brfu brrr brrs brsb brsr brst brue brus brut bsaa bsas bsat bsea bseb bsee bser bses bset bsfa bsff bsfs bsra bsse bsts btaa btaf btrt btss bttb btus buar buat buba bubb bube bubs bubu buea buer bueu bufe buff bufr bur- bura burb bure burr burs burt buru busa buse buss bust busu but- buta bute buts butt buus eaaf eaba eafb eara earb eare ears eart easa ease east eata eate eats eaus ebba ebbr ebbs eber ebes ebru ebsa ebur ebus eeea eeee eees eefa eefe eera eers eese eeta eete eets eetu efab efas efbr efes efet effa effs efsa eft- efta efts eftu efua eraf eras erat erau erba erbb erbe ereb erer eres eret erfs erft erra erre errs ersa erse erst erta erts ertu erua erub erur erus esab esar esas esat esau esba esbs esea esee eser eses eset esfs esra essa esse esst essu esta este estr ests esuf esus etas etat etbr etee eter etes etfa etfb etfe etra etre etsu etta ette ettu etua euba euer eur- eura eure eurt eusa euse faaa faas faba fabe fabs fabu faeb faes fafa fafe faff fara farb fare farr fars fart faru fasa fase fass fast fata fate fatf fats fatt faue faur faut fbar fbrs fbus feaf fear feas feat feba febs feeb feer fees feet fefe feff fera ferb fere ferr fers fert feru fesa fese fess fest feta fete fetr fets fett fetu feus ffar ffee ffff ffrr ffsa ffss fftf frab frae fras frat frau frea free fres fret frsb frst frta frub frue fsas fsra fssa fssf fsta ftea fter ftrs ftsa ftse ftsr ftub fuar fuat fubb fubs fubu fuet fuff fufu fur- fura fure furr furs furt fusa fuse fuss fust fusu futa fute futs futu raab raaf raas raat raba rabb rabe rabs rabu raef raer raes rafa rafe raff raft rara rarb rare rarf rars rasa rase rass rast rasu rata rate ratf rats ratt ratu raua raub raue rauf raus raut rbaf rbbb rbbr rbbs rbss rbst rea- reae reaf rear reas reat reau reba rebb rebe rebs rebu reeb reef rees reet refe reff refr refs reft refu rera rere rers rert reru resa rese ress rest reta rete retr rets rett reue reuf reus reut reuu rfae rfef rras rrat rrrr rsaa rsaf rsee rsre rssa rsts rstu rsua rtas rtbf rtee rtes rtfb rtss rtts ruas ruba rubb rube rubs rubu ruer rues ruet rufa rufe ruff ruft rura rure rurs ruru rusa ruse russ rust rusu ruta rute ruts rutt rutu saab saae saaf saar saas saat saba sabb sabe sabr sabs sabu saeb saer saes safa safb safe saff safr saft safu sara sare sarf sarr sars sart saru sasa sase sasf sass sast sata satb sate satr sats satt satu saua saue sauf saur saus saut sbaa sbar sbas sbbs sbef sber sbsa sbse sbst sbus se-e se-f se-s se-t se-u seaa seab seaf sear seas seat seau seba sebe sebs sebt seea seeb seef seer sees seet seeu sefa seff seft sera serb sere serf serr sers sert seru sesa sese sess sest set- seta sete setf sets sett seur sfar sfas sfba sfer sfra sfss sfsu sfts sraf sras sreb sres srta srtr srub ssaa ssab ssas ssat ssau ssbr ssee sses sset ssra ssrs sssa sssb sssf ssss ssta sstb ssts stab stae star stas stat stau stbs stea stee stef ster stes stet stfu stra stre strs stru stsf stss sttr stub stue stuf stur stus stut suar suas suat sub- suba subb subs suee suer sues suet sueu suf- sufa suff sufr sufs sufu sur- sura sure surf surr surs surt suru sus- susa suse suss sust susu suta sute sutu suus taa- taaf taar taas taat taba tabb tabe tabs tabu taer taes tafa tafe taff taft tara tarb tare tarf tarr tars tart taru tasa tasb tase tasr tass tast tasu tata tatb tate tatr tats tatt tatu taua taub