a-ak aaaa aaab aaad aaap aaba aabb aabd aabp aada aadu aaka aaku aapa aaup abaa abab abad abak abap abau abb- abba abbb abda abdu abpa abpd abpp abua abud abuk adaa adab adad adak adap adba adda addd addu adp- adua adub aduk akaa akap akka akku akpu akua apak apap apba apda apdd apdu appa appd appu apua apud apup auaa baaa baad baak baba babb babu bada badb badd badu bak- baka baku bapa bapp bapu bau- baud bauk bbad bbau bbbb bbdd bpda buad buba bubb bubu buda budb budd budu buka bukk buku bupa daab daad daap daau daba dabb dabp dabu dada dadu daka daku dapa dapp dapu daub daud dauk dbpd dddd ddub dkba dpaa dppa duaa duab duad dub- duba dubb dubu duda dudd dudu duka duku dupa kaaa kaab kaak kaap kaba kabb kabd kabu kad- kada kadd kadu kaka kakk kaku kap- kapa kapp kapu kau- kaub kaud kauk kaup kbaa kbab kbad kbak kbap kbba kbbb kbbd kbbk kbbu kbdb kbkb kbkk kbpa kbpk kbpu kbua kbub kbud kbuk kbup kbuu kdaa kdab kdad kdak kdap kdbb kddb kddd kddk kdka kdkb kdkd kdkk kdub kdup kkaa kkap kkba kkbb kkbd kkda kkdd kkkk kkpk kkua kkup kkuu kpad kpak kpau kpba kpbb kpbd kpda kpdb kpkk kppd kppk kppp kpua kpub kuap kuau kuba kubb kubd kubu kuda kudd kudu kuka kukk kuku kupa kupb kupd kupu kuub kuuk kuuu paak paap paba pabu pada padd padu paka paku papa papb papp paua paud pauk paup pbpa pbpk pdpa ppad ppap ppdk pppa pppd pppp pubu pudu puka puku pupa pupu uaua ubba ubud udaa udad udau udpd uduk ukba ukpa ukup upda uppa uppp uppu upup uuuu