a-ak aaaa aaab aaad aaba aabb aabd aada aadu aaka aaku abaa abab abad abak abau abb- abba abbb abda abdu abua abud abuk adaa adab adad adak adba adda addd addu adua adub aduk akaa akka akku akua auaa baaa baad baak baba babb babu bada badb badd badu bak- baka baku bau- baud bauk bbad bbau bbbb bbdd buad buba bubb bubu buda budb budd budu buka bukk buku daab daad daau daba dabb dabu dada dadu daka daku daub daud dauk dddd ddub dkba duaa duab duad dub- duba dubb dubu duda dudd dudu duka duku kaaa kaab kaak kaba kabb kabd kabu kad- kada kadd kadu kaka kakk kaku kau- kaub kaud kauk kbaa kbab kbad kbak kbba kbbb kbbd kbbk kbbu kbdb kbkb kbkk kbua kbub kbud kbuk kbuu kdaa kdab kdad kdak kdbb kddb kddd kddk kdka kdkb kdkd kdkk kdub kkaa kkba kkbb kkbd kkda kkdd kkkk kkua kkuu kuau kuba kubb kubd kubu kuda kudd kudu kuka kukk kuku kuub kuuk kuuu uaua ubba ubud udaa udad udau uduk ukba uuuu