-vac a-ak a-be aaaa aaab aaac aaae aaar aaav aaba aabb aabc aabt aaca aacb aacc aace aack aacr aact aacv aaea aaec aaev aaka aake aara aarc aare aart aata aatc aatk aatt aava abaa abab abac abae abak abar abat abb- abba abbb abbe abbr abbt abca abcb abcc abcr abct abec abee aber abet abra abrc abta abva ac-t acaa acab acac acae acar acat acba acca accc acce acct ace- acea acec acek acer acet acev acke acr- acra acrc acre acrr acrv acta actc acte actt actv acvv aeac aecb aect aeer aeka aer- aera aerc aeta aetc aetr aett aeva akaa akae akar akca akee aker akka akr- akra akre akte aktv arab arac arae arak arar arat arba arbe arc- arca arce arct area arec aree arek aret arev arka arke arr- arra arrc arre arrk arrr arrt arta artc arte artr artv arva arve at-t ataa atab atac atae atak atar atat atca atcc atck atcr atea atec atee ater atka atkt atkv atra atrc atre atrk atta atte attr avab avar avat avcc avce avea avec aver avkt avra avre avva baaa baak baar baat baba babb babe babr bac- baca bacc bace back bact baek baer bak- baka bake bakr bakt bar- bara barb barc bare bark barr bart bata batc bate batt bava bave bbbb bbeb bbet bbrc bcaa bcar bcat bcbc bcca bccc bcec bcer bcet bcra bctc beak bear beat beav beba bebb bebe beca beck beeb beek beer beet beka beke bera berc bere berk berr bert beta betc bete bett betv brab brac brae brak brat brav brca brcb brce brea breb brec bree brek brer bret brev brka brkb brrr brtc btaa btcc btec btek btrc btrt bttb caaa caab caac caat caba cabe cac- caca cacc cace cack cacr caec caer caka cake cara carb carc care cark carr cart cat- cata catb catc cate catt catv cava cave cbac cbar cbat cbbc cbca cbcc cbce cbcr cbct cbea cbec cbee cber cbet cbka cbkr cbre cbrt cbta cbtc cbtv cbva cbvb cbve cbvr ccaa ccab ccac ccar ccat ccba ccbc ccca cccb cccc cccv ccee ccra ccrc ccre ccrt cctb cctc cctt cctv ceac cear ceat ceba cec- ceca cece cect ceeb ceec ceke cer- cera cerc cere cert cet- ceta cete cetv ceva ckac ckat ckbc ckbe ckck ckcv cker ckrc cktb crab crac crar crat crbc crca crcc crce crcr cre- crea creb crec cree cret crkc crrt crtc crtv ctab ctae ctba ctca ctec ctrc ctta ctvt 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 ecaa ecac ecar ecat ecbc ecbe ecca eccb eccc ecce ecct ecka ecra ecrc ecrr ecrv ect- ecta ectc ectv eeca eeea eeee eeka eeke eera eerc eeta eetc eete eeva eka- ekab ekeb ekek eker eket ekka ekta erat erba erbb erbe erca ercc erce ereb erec erer eret erev erke erra errc erre erta erve etak etat etbc etbr etcc etec etee eter etka etra etre etta ette evac evae evar evat evea ever evet evra evre evvk kaaa kaab kaak kaar kaat kaba kabb kabc kabe kabr kacb kacc kace kact kacv kaer kaet kaka kakc kake kakk kakt kara karb kare kark karr kart karv kat- kata katb katc kate katk katr katt katv kava kavb kave kavv kbaa kbab kbac kbae kbak kbar kbat kbba kbbb kbbc kbbe kbbk kbbr kbbt kbca kbcb kbce kbck kbcr kbct kbeb kbec kbee kbek kber kbet kbev kbkb kbkk kbkr kbkv kbra kbrb kbrc kbre kbrk kbrt kbrv kbta kbtb kbtc kbte kbtk kbtr kbtt kbtv kbva kbvb kbvc kbvr kcaa kcab kcac kcar kcat kcav kcba kcbc kcbk kcbr kcca kccb kccc kcck kccr kcct kccv kcea kceb kcec kcee kcet kckc kckk kckr kckv kcrc kcrr kcrt kcrv kcta kctb kctc kcte kctv kcvk kcvr kcvv kea- keak kear keat keba kebb kebc kebe kebr kebt keca keck kecr keek keer keet keka kekb kekc keke ker- kera kerb kerc kere kerk kerr kert kerv ket- keta ketc kete ketk ketr kett ketv keva keve kevt kkaa kkac kkar kkat kkba kkbb kkbe kkbr kkbt kkcb kkck kkcr kkct kkea kkkk kkrb kkrc kkre kkrk kkrr kkrt kkrv kktc kktk kktv kkvr kkvt kkvv krab krac krae krak krar krat krav krba krbb krbe krbk krbr krbt krca krcb krcc krce krea kreb krec kree krek kret krev krka krkc krke krkk krkr krkv krrb krrc krre krrk krrr krrt krta krtc krtk krtr krtv krva krvb krvc krve krvk krvr krvv ktaa ktae ktak ktar ktat ktav ktba ktbb ktbc ktbr ktbt ktcc ktce ktck ktcr ktcv ktea ktec ktee ktek ktkb ktkc ktke ktkk ktkr ktkt ktrb ktrc ktre ktrk ktrr ktrt ktrv kttc kttk kttr kttt kttv ktva ktvb ktvc ktve ktvk ktvr ktvt kvab kvak kvar kvat kvbc kvbr kvbt kvcb kvcc kvce kvck kvcr kvct kvcv kvea kvec kver kvet kvra kvrc kvre kvrr kvrv kvta kvtk kvtr kvtt kvtv kvvr kvvv raab raak raat raba rabb rabe rabk rac- raca racc race rack ract racv raec raer raka rake rakk rakt rara rarb rare rark rata rate ratk ratt rava rave rbbb rbbr rcac rcbc rccb rccc rcet rctc rctv rcvr rea- reac reae reak rear reat reba rebb rebe rebk reca recc rece reck recr rect reeb reek reet reev reka reke rekt rera rere rert reta rete retr rett reva reve rrat rrrr rtca rtcc rtce rtee rtva rtve rv-c rvca rver taa- taar taat taba tabb tabc tabe taca tacc tace tack tact tacv taec taer taka take takk takt tara tarb tarc tare tark tarr tart tata tatb tate tatr tatt tatv tava tave tbar tbca tbcb tbcc tbce tbrb tbta tcca tccc tctc teac teak tear teat teba teca teck tecr tect teec teek teer teet teev teka teke ter- tera