a-be a-wa aaaa aaab aaae aaar aaba aabb aabt aabw aaea aaoe aaoo aaow aara aare aaro aart aaru aata aatt aatw aauw aawt aaww abaa abab abae abar abat abau abaw abb- abba abbb abbe abbo abbr abbt abee aber abet aboa abob aboo abor abot abou abow abra abro abta abtu abua abue abut abwa abwe abwr abwu aeer aer- aera aero aeta aeto aetr aett aoba aoeu aora aorb aort aout arab arae arar arat arau araw arba arbe area aree areo aret areu arew aroa arob aroe aroo aror arow arr- arra arre arro arrr arrt arru arta arte arto artr arua arub arue arut arwa arwe at-t ataa atab atae atar atat atea atee ateo ater atew atob atoe ator atot atra atre atro atru atta atte atto attr attu atua atub atur atwa atwo atwt atwu auaa aube auer auew aur- aura aure auro aut- aute auto auwa auwe awae awar awbe awe- aweb awee awer awet awoo awow awre awro awwa baaa baar baat baba babb babe babo babr babu baer bar- bara barb bare baro barr bart baru bata bate bato batt batu bau- baur baw- bawe bawu bbau bbbb bbeb bbet bbwr bear beat beau beaw beba bebb bebe bebo beeb beer beet beo- beor beot bera bere bero berr bert beru beta bete beto bett betu betw beur bewa bewe boab boar boat boba bobb bobe bobo bobu bobw boea boee boeo boer boet boob booe boor boot boow bor- bora bore boro borr bort boru borw bota botb bote boto bott botw boua boue bour bout bouw bowa bowe bowr bowt brab brae brao brat brau braw brea breb bree breo brer bret brew broa brob broe broo bror brot brou brow brrr brue brut brwe btaa btob btor btrt bttb btwo buar buat buba bubb bube bubo bubu buea buer bueu bur- bura burb bure buro burr burt buru but- buta bute buto butt buwa buwe bwaa eaba eara earb eare earo eart earw eata eate ebba ebbo ebbr ebbw eber eboe eboo ebor ebow ebro ebru ebur eeea eeee eera eero eeta eete eetu eora eore eota eoto eotw erat erau erba erbb erbe ereb erer eret erew erob eroe eroo erra erre erro erta ertu erua erub erur erwt etat etbr etee eter etoe etra etre etro etta ette etto ettu etua euaw euba euer eur- eura eure euro eurt euwe ewer ewew ewre ewte o-eo oaau oaer oara oare oate obba obbo obea ober obet oboe obor obot obra obre obro oera oere oeta ooaa ooba oobe ooer oooo oora oore oort ootb ootw orab orae orao orar orat orba orbb orbe orbo orbu ore- orea oreb oreo orer oro- oroe oror orot orra orro orta orte orto orub orwa orwe orwo otar otea otee oter oto- otoe otoo otor otow otra otre otro otta otte otto ottu otur otwo ouat ouea ouer our- oura oure ouro ourt out- outa outb oute outo ouu- ouwe owar owea ower owoe owow owre owt- owte owtt owur owwa raab raat raba rabb rabe rabo rabu raer raob rara rarb rare raro rata rate rato ratt ratu raua raub raue raut rawa rawe rawr rawu raww rbbb rbbr rea- reae reao rear reat reau reba rebb rebe rebo rebu reeb reet reot reou rera rere rero rert reru reta rete reto retr rett reue reut reuu rewa rewe roab roar roat rob- roba robb robe robo robt robu roea roer roet roob roor root rora rore roro rort roru rota rote roto rotr rott roua roub roue rout rowa rowb rowe rowr rowt roww rrat rrrr rtee ruba rubb rube rubu ruer ruet rura rure ruro ruru ruta rute ruto rutt rutu ruwa ruwe taa- taar taat taba tabb tabe tabo tabu taer taoa taor taou tara tarb tare taro tarr tart taru tata tatb tate tato tatr tatt tatu taua taub taue taur taut tawa tawe tawo tawt taww tbar tbrb tbta tear teat teaw teba tebo tebu teer teet teor teow ter- tera tere tero terr teru teta tete teto tetr tett tetu teut tewa tewo toab toat toau toaw toba tobe tobo tobt tobu toea toee toer toet tooa toor toot tora tore toro torr tort toru tota tote toto totr tott tour tout towa towe traa trab trae trao trat trau traw tre- trea tree treo tret treu trew troa troe troo trot trou trow trra trte trtr trub true trut truu trwe ttab ttbb tteo tter ttoe tttt tuae tuao tuar tuat tuba tubb tube tubo tubr tubu tuer tuet tuor tura turb ture turo turr turt turu tuta tute tuto tutt tutu tuuo twae twat twbt twee twer two- twoa twob twoo twot uart uaru uata uatu uaua ubar ubba ubbe ubbo uber ubet ubra ueba uewe uor- uore urao urat urau urba urbe ure- urea uret uro- uroa uroo urra urre urte urur urut urwa utau utaw uter utor utto uttu utwe utwo uuta uuuu uwer waaa waao waar waat waaw waba wabb wabe wabo wabr wabt wabw waeb waee waer waet waew waob waoe waoo waor waow war- wara warb ware waro warr wart waru warw wata watb wate wato watr watt watw waub waur waut wawa wawb wawe wawo wawt wbaa wbab wbae wbar wbat wbau wbbb wbbe wbbo wbbr wbbt wbbw wbea wbeb wber wbet wbew wbob wbor wbow wbrb wbrr wbrt wbru wbrw wbta wbte wbto wbtr wbtt wbtu wbtw wbut wbuw wbwb wbwo wbwt weaa weao wear weat weau webb webe webo webt weeb weeo weer weet weeu weoa weow wer- wera werb were wero werr wert werw weta wetb wete weto wetr wett wetu wewe wewo woaa woab woar woat woba wobb wobe wobo wobt woer woob woot woow wora worb wore woro worr wort worw wotb wote wotr wott wotw woub wour wout wouw wowb wowe wowo wowt woww wraa wrab wrae wrao wrar wrat wrau wraw wrba wrbb wrbe wrbo wrbt wrbu wrbw