a-ak a-be aaaa aaab aaac aaae aaar aaba aabb aabc aaca aacb aacc aace aack aacr aacu aaea aaec aage aaka aake aaku aara aarc aare aaru abaa abab abac abae abag abak abar abau abb- abba abbb abbe abbr abca abcb abcc abcr abec abee aber abra abrc abua abue abug abuk acaa acab acac acae acag acar acba acca accc acce accu ace- acea acec acek acer acga acgr acke acr- acra acrc acre acrr acu- acue acur aeac aecb aeer aega aeka aer- aera aerc agac agag agar agau agba agca agcc agce agea agee ager agga agge aggu agra agre agua ague agur akaa akae akar akca akee akeg aker akeu akka akku akr- akra akre akua arab arac arae arag arak arar arau arba arbe arc- arca arce area arec aree areg arek areu arga argb arge arka arke arr- arra arrc arre arrg arrk arrr arru arua arub arue arug auaa aube auca auce auer auga auge auke aur- aura aure auug baaa baak baar baba babb babe babr babu bac- baca bacc bace back baek baer baga bage bagg bak- baka bake bakr baku bar- bara barb barc bare barg bark barr baru bau- baug bauk baur bbau bbbb bbeb bbga bbrc bbrg bcaa bcar bcbc bcbg bcca bccc bcec bcer bcra bcru bcuc beag beak bear beau beba bebb bebe beca beck becu beeb beeg beek beer bega begg begu beka beke bera berc bere berg berk berr beru beuk beur bgca brab brac brae brag brak brau brca brcb brce brea breb brec bree breg brek brer brka brkb brrr bruc brue brug buar buba bubb bube bubu buca bucc buce buck bucu buea buer bueu buga buge bugg buka buke bukk buku bur- bura burb bure burg burk burr buru caaa caab caac caba cabe cabg cabu cac- caca cacc cace cack cacr caec caer caeu caga cage cagg cagr caka cake cara carb carc care cark carr cauc cauk cbac cbar cbbc cbca cbcc cbce cbcr cbcu cbea cbec cbee cber cbga cbgb cbka cbkg cbkr cbre ccaa ccab ccac ccag ccar ccba ccbc ccca cccb cccc cccu ccee ccga ccgc ccra ccrc ccre ccrg ccuc ceac cear ceba cebu cec- ceca cece ceeb ceec cege ceke cer- cera cerc cere cgac cgcc cgcg cger ckac ckbc ckbe ckck cker ckga ckrc crab crac crag crar crau crbc crbu crca crcc crce crcr cre- crea creb crec cree creg creu crkc crub crue crug cruk cuau cub- cuba cubb cube cuca cucc cuce cuck cuek cuer cuga cuk- cuka cuke cura curb cure curr eaba eaca eacc eaec eaga eage eara earb eare ebac ebba ebbc ebbr ebcc eber ebru ebur ecaa ecac ecar ecbc ecbe ecca eccb eccc ecce ecka ecra ecrc ecrr ecru ecua eeca eeea eeee eega eeka eeke eera eerc eerg egaa egae egar egba egbe egbu egcc egcg egcr egea egec egee eger eggb egge egra egre eka- ekab ekeb ekek eker ekka ekur erau erba erbb erbe erca ercc erce ereb erec erer erg- erga ergg erke erra errc erre erua erub eruc erur euba eubc euer euge eur- eura eurc eure gaar gaba gabb gabe gabr gabu gace gack gaea gaec gaer gaga gage gagg gagu gaku gara garb gare garg garr gaua gaub gaue gauk gaur gbag gc-c gcaa gcbc gccc gcrg geab gear geba gebe geca gece geck geek geer gege gegg gera gerb gere geru geue gggg grab grac grae grau grbr grcc grce grea greb grec gree greg greu grrr grua grub grue grug grur guaa guac guag guar guba gubb gubu guca guck guer guga gugb guge gugg gugu gura gurb gure gurg gurk gurr guru kaaa kaab kaag kaak kaar kaba kabb kabc kabe kabg kabr kabu kacb kacc kace kacu kaer kag- kaga kagb kagc kage kagg kagr kagu kaka kakc kake kakk kaku kara karb kare karg kark karr karu kau- kaub kauc kaue kaug kauk kaur kbaa kbab kbac kbae kbak kbar kbba kbbb kbbc kbbe kbbg kbbk kbbr kbbu kbca kbcb kbce kbck kbcr kbcu kbeb kbec kbee kbek kber kbga kbgb kbge kbgg kbgr kbkb kbkg kbkk kbkr kbra kbrb kbrc kbre kbrg kbrk kbru kbua kbub kbuc kbue kbuk kbur kbuu kcaa kcab kcac kcar kcau kcba kcbc kcbk kcbr kcbu kcca kccb kccc kcck kccr kccu kcea kceb kcec kcee kceg kceu kcgc kcgr kckc kckk kckr kcrc kcrg kcrr kcru kcua kcub kcue kcuk kea- keag keak kear keau keba kebb kebc kebe kebr kebu keca kecg keck kecr keek keer kega kege kegg kegk kegr keka kekb kekc keke keku ker- kera kerb kerc kere kerk kerr keru keug keur kgab kgac kgak kgba kgbb kgbc kgbr kgcb kgcc kgce kgcr kgeb kgec kgga kggg kggr kgra kgrb kgrc kgre kgrg kgrk kgrr kgua kkaa kkac kkag kkar kkba kkbb kkbe kkbg kkbr kkcb kkck kkcr kkea kkeg kkgb kkgr kkkk kkrb kkrc kkre kkrk kkrr kkua kkuu krab krac krae krag krak krar krba krbb krbe krbg krbk krbr krca krcb krcc krce krcg krcu krea kreb krec kree krek kreu krka krkc krke krkk krkr krku krrb krrc krre krrg krrk krrr krua kruc krue krug kruk krur kuac kuar kuau kuba kubb kubc kube kubr kubu kuca kucb kucc kuce kucr kuek kueu kuga kugb kuge kugr kuka kuke kukk kuku kura kurb kure kurk kurr kuru kuub kuuk kuur kuuu raab raag raak raba rabb rabe rabk rabu rac- raca racc race rack racu raec raeg raer raga rage ragg ragu raka rake rakk raku rara rarb rare rark raua raub rauc raue rauk rbbb rbbr rcac rcbc rccb rccc rcga rcgc rcrg rea- reac reae reak rear reau reba rebb rebe rebk rebu reca recc rece reck recr recu reeb reek rega rege regr regu reka reke rera rere rerg reru reue reuk reuu rgba rgbe rrrr ruag ruba rubb rube rubu ruca ruce ruck ruer ruga ruge rugg ruka ruke rukk