a-ak aaaa aaab aaad aaar aaba aabb aabd aada aadu aaka aaku aara aard aaru abaa abab abad abak abar abau abb- abba abbb abbr abda abdu abra abua abud abuk adaa adab adad adak adar adba adda addd addr addu adra adua adub aduk adur akaa akar akka akku akr- akra akua arab arad arak arar arau arba arda ardu arka arr- arra arrk arrr arru arua arub arud auaa aur- aura aurd baaa baad baak baar baba babb babr babu bada badb badd badr badu bak- baka bakr baku bar- bara barb bard bark barr baru bau- baud bauk baur bbad bbau bbbb bbdd bd-r brab brad brak brau brda brka brkb brrr brud buad buar buba bubb bubu buda budb budd budu buka bukk buku bur- bura burb burd burk burr buru daab daad daar daau daba dabb dabu dada dadu daka daku dara darb dard dark darr daru daub daud dauk daur dbar dddd ddub dkba draa drab drad drak drar drau drba drda drra drua drub druk druu duaa duab duad duar dub- duba dubb dubu duda dudd dudu duka duku dura durk duru duur kaaa kaab kaak kaar kaba kabb kabd kabr kabu kad- kada kadd kadr kadu kaka kakk kaku kara karb kard kark karr karu kau- kaub kaud kauk kaur kbaa kbab kbad kbak kbar kbba kbbb kbbd kbbk kbbr kbbu kbdb kbdr kbkb kbkk kbkr kbra kbrb kbrd kbrk kbru kbua kbub kbud kbuk kbur kbuu kdaa kdab kdad kdak kdar kdbb kdbr kddb kddd kddk kddr kdka kdkb kdkd kdkk kdkr kdrb kdub kdur kkaa kkar kkba kkbb kkbd kkbr kkda kkdd kkkk kkrb kkrk kkrr kkua kkuu krab krad krak krar krba krbb krbd krbk krbr krda krdd krdr krdu krka krkd krkk krkr krku krrb krrk krrr krua kruk krur kuar kuau kuba kubb kubd kubr kubu kuda kudd kudu kuka kukk kuku kura kurb kurd kurk kurr kuru kuub kuuk kuur kuuu raab raad raak raba rabb rabk rabu rada radd radr radu raka rakk raku rara rarb rark raua raub raud rauk rbbb rbbr rrad rrrr ruad ruba rubb rubu ruda rudd ruka rukk ruku rura rurd ruru ruud uaru uaua ubar ubba ubra ubud udaa udad udar udau udra uduk ukba ukra ukur urad urau urba urda urdu urka urra uruk urur uuuu