-vac a-be aaaa aaab aaac aaae aaar aaav aaba aabb aabc aabt aaca aacb aacc aace aacr aact aacu aacv aaea aaec aaev aara aarc aare aart aaru aata aatc aatt aava abaa abab abac abae abar abat abau abb- abba abbb abbe abbr abbt abca abcb abcc abcr abct abec abee aber abet abra abrc abta abtu abua abue abut abva ac-t acaa acab acac acae acar acat acba acca accc acce acct accu ace- acea acec acer acet acev acr- acra acrc acre acrr acrv acta actc acte actt actu actv acu- acue acur acut acvv aeac aecb aect aeer aer- aera aerc aeta aetc aetr aett aeva arab arac arae arar arat arau arba arbe arc- arca arce arct area arec aree aret areu arev arr- arra arrc arre arrr arrt arru arta artc arte artr artv arua arub arue arut arva arve at-t ataa atab atac atae atar atat atca atcc atcr atea atec atee ater atra atrc atre atru atta atte attr attu atua atub atuc atur auaa aube auca auce auct auer aur- aura aure aut- aute auve avab avar avat avcc avce avea avec aver aveu avra avre avur avva baaa baar baat baba babb babe babr babu bac- baca bacc bace bact baer bar- bara barb barc bare barr bart baru bata batc bate batt batu bau- baur bava bave bavu bbau bbbb bbeb bbet bbrc bcaa bcar bcat bcbc bcca bccc bcec bcer bcet bcra bcru bctc bcuc bear beat beau beav beba bebb bebe beca becu beeb beer beet bera berc bere berr bert beru beta betc bete bett betu betv beur brab brac brae brat brau brav brca brcb brce brea breb brec bree brer bret brev brrr brtc bruc brue brut bruv btaa btcc btec btrc btrt bttb buar buat buba bubb bube bubu buca bucc buce bucu buea buer bueu bur- bura burb bure burr burt buru but- buta bute butt buve caaa caab caac caat caba cabe cabu cac- caca cacc cace cacr caec caer caeu cara carb carc care carr cart cat- cata catb catc cate catt catu catv cauc caut cava cave cavu cbac cbar cbat cbbc cbca cbcc cbce cbcr cbct cbcu cbea cbec cbee cber cbet cbre cbrt cbta cbtc cbtv cbva cbvb cbve cbvr ccaa ccab ccac ccar ccat ccba ccbc ccca cccb cccc cccu cccv ccee ccra ccrc ccre ccrt cctb cctc cctt cctv ccuc ccut ceac cear ceat ceba cebu cec- ceca cece cect ceeb ceec cer- cera cerc cere cert cet- ceta cete cetv ceva crab crac crar crat crau crbc crbu crca crcc crce crcr cre- crea creb crec cree cret creu crrt crtc crtv crub crue crut ctab ctae ctba ctca ctec ctrc ctta ctvt cuau cub- cuba cubb cube cuca cucc cuce cuer cura curb cure curr curt cut- cuta cutc cute cutt cutv cuve cvac cvar cvca cvcc cver cvet cvra cvrr cvte eaba eaca eacc eaec eara earb eare eart eata eate eave ebac ebba ebbc ebbr ebcc eber ebru ebur ecaa ecac ecar ecat ecbc ecbe ecca eccb eccc ecce ecct ecra ecrc ecrr ecru ecrv ect- ecta ectc ectv ecua eeca eeea eeee eera eerc eeta eetc eete eetu eeva erat erau erba erbb erbe erca ercc erce ereb erec erer eret erev erra errc erre erta ertu erua erub eruc erur eruv erve etat etbc etbr etcc etec etee eter etra etre etta ette ettu etua euba eubc euer eur- eura eurc eure eurt evac evae evar evat evea ever evet evra evre raab raat raba rabb rabe rabu rac- raca racc race ract racu racv raec raer rara rarb rare rata rate ratt ratu raua raub rauc raue raut rava rave rbbb rbbr rcac rcbc rccb rccc rcet rctc rctv rcuv rcvr rea- reac reae rear reat reau reba rebb rebe rebu reca recc rece recr rect recu reeb reet reev rera rere rert reru reta rete retr rett reue reut reuu reva reve rrat rrrr rtca rtcc rtce rtee rtva rtve ruba rubb rube rubu ruca ruce ruct ruer ruet rura rurc rure ruru ruta rute rutt rutu ruve ruvu rv-c rvca rver taa- taar taat taba tabb tabc tabe tabu taca tacc tace tact tacv taec taer tara tarb tarc tare tarr tart taru tata tatb tate tatr tatt tatu tatv taua taub tauc taue taur taut tava tave tbar tbca tbcb tbcc tbce tbrb tbta tcca tccc tccu tctc teac tear teat teba tebu teca tecr tect teec teer teet teev ter- tera terc tere terr teru teta tete tetr tett tetu teut teva traa trab trac trae trat trau trav trca trcc tre- trea trec tree tret treu trev trra trtc trte trtr trub truc true trut truu ttab ttbb tter tttt tuae tuar tuat tuba tubb tube tubr tubu tuca tucc tuer tuet tura turb turc ture turr turt turu tuta tute tutt tutu tuva tvac tver tvrr tvtv uabc uaca uarc uart uaru uata uatu uatv uaua ubac ubar ubba ubbe uber ubet ubra ucar ucat ucav ucbc ucca ucea ucrc uctv ucua ucut ueba urac urat urau urba urbe urca ure- urea uret urra urre urte urur urut urva urve utac utau utec uter uttu uuta uuuu uv-a uv-b uv-c uvaa uvac uvae uvat uvea uver uvvu vaar vaat vaca vace vara vare varr vart varu vata vate vatt vatu vaut vava vbcc vcat vear veat veau veba vecc veer veet ver- vera verb vere vert veta vete vetr veur veve vrac vrav vrba vret vtac vtec vuca vurb vurt vutv vver vvvv