a-be aaaa aaab aaae aaam aaar aaba aabb aabm aabt aaea aaem aama aamb aame aamr aara aare aarm aart aaru aata aatt abaa abab abae abam abar abat abau abax abb- abba abbb abbe abbr abbt abee aber abet abma abmb abmt abra abta abtu abua abue abum abut aeer aemt aer- aera aeta aetr aett aetx amaa amae amam amar amat amax amb- amba ambe ambr ambu ambx amee amer amet ameu amex amm- amma amme ammu amra amta amte amua amum amur arab arae aram arar arat arau arax arba arbe area aree arem aret areu arex arma arme armm armt armu arr- arra arre arrr arrt arru arta arte artr artx arua arub arue arum arut at-t at-x ataa atab atae atar atat atax atea atee atem ater atex atm- atma atme atmu atra atre atrm atru atrx atta atte attr attu atua atub atum atur auaa aube auer auma aur- aura aure aut- aute auxa axar axat axer axum ba-x baaa baam baar baat baba babb babe babm babr babu baer bama bamb bame bamm bamu bar- bara barb bare barm barr bart baru barx bata bate batt batu bau- baum baur baux baxt bbau bbbb bbeb bbet beam bear beat beau beba bebb bebe beeb beem beer beet bema beme bemu bera bere berm berr bert beru beta bete bett betu beur beux bmaa brab brae bram brat brau brax brea breb bree brem brer bret brex brrm brrr brue brum brut brux btaa btex btrt bttb buar buat buba bubb bube bubu buea buem buer bueu bum- buma bumb bur- bura burb bure burm burr burt buru but- buta bute butt buxa eaba eama eame eara earb eare eart eata eate eaux ebam ebba ebbr eber ebru ebur eeea eeee eera eeta eete eetu eext emae emam emar emax emba embe embr emer emet emeu emex emma emme emmu emra emre emta emte er-x eram erat erau erba erbb erbe ereb erem erer eret erma erme erra erre erta ertu erua erub erum erur etam etat etbr etee etem eter etra etre etrm etta ette ettu etua etux euba euer eur- eura eure eurt exa- exam exer exmr exrx exta exte extr exum maaa maam maar maat maba mabe mabu maee maem maer mama mame mamu mar- mara mare marm marr mart maru marx mata mate matr matt matu maua maum maur maut maux maxx mbam mbba mbta mear meat mebe meem meer meet mema meme memr memu memx mer- mera merb mere merm mert meru met- meta mete mett metu meum meux mexx mmaa mmab mmar mmea mmmm mmxx mrbb mrbm mreb mree mrta mrtm mrtt mtaa mtab mtre mtrr mttr muar mube muee muet muma mume mumm mumu mura mure murr murt muru muta mute mutt mutu muut muxe muxu raab raam raat raba rabb rabe rabu raer rama ramb rame ramm ramu rara rarb rare rata rate ratt ratu raua raub raue raum raut raxa rbbb rbbr rbmx rea- reae ream rear reat reau reba rebb rebe rebu reeb reem reet rema reme rera rere rert reru reta rete retr rett reue reut reuu reux rexx rmtu rrat rrrr rrum rtee rtex ruba rubb rube rubu ruer ruet ruma rumb rume rumm rumt rura rure ruru ruta rute rutt rutu taa- taar taat taba tabb tabe tabu taem taer tama tame tamm tamu tara tarb tare tarm tarr tart taru tata tatb tate tatr tatt tatu taua taub taue taum taur taut tax- taxa taxe taxm taxt tbar tbrb tbta team tear teat teba tebu teem teer teet tema teme temu ter- tera tere term terr teru teta tete tetr tett tetu tetx teut texa text tmaa tmax tmbr tmtt tmux traa trab trae tram trat trau trax tre- trea tree trem tret treu trex trma trmb trmu trra trte trtr trub true trut truu trux ttab ttbb tter ttma tttt tuae tuam tuar tuat tuba tubb tube tubr tubu tuer tuet tuma tumb tume tumu tura turb ture turm turr turt turu tuta tute tutt tutu tuum txaa txtr uart uaru uata uatu uaua ubar ubba ubbe uber ubet ubra ueba uext umaa umar umax umb- umba umbe umer umet umma umra umut urat urau urba urbe ure- urea uret urex urma urra urre urte urum urur urut utau uter utmb uttu uuta uuuu uxem uxue xaar xara xare xate xbar xbee xbra xeer xema xeme xemu xer- xera xert xexe xmax xtar xtea xtra xura xuxa xuxu xxxx