a-ak a-ha aaaa aaab aaac aaah aaba aabb aabc aabh aaca aacb aacc aach aack aacu aaha aahk aaka aaku abaa abab abac abak abau abb- abba abbb abca abcb abcc abch abha abua abuk acaa acab acac acba acca accc acch accu acha achh achu acu- ahab ahac ahah ahau ahha ahua akaa akah akca akha akka akku akua auaa auca auch baaa baah baak baba babb babu bac- baca bacc bach back baha bahu bak- baka bakh baku bau- bauk bbau bbbb bbch bcaa bcbc bcca bccc bcuc bhca bhcc bhuu buba bubb bubu buca bucc buch buck bucu buha buka bukh bukk buku caaa caab caac caah caba cabu cac- caca cacc cach cack caha caka cauc cauk cbac cbbc cbca cbcc cbcu cbha cbka ccaa ccab ccac ccba ccbc ccca cccb cccc cccu ccha ccuc chaa chab chac chah chak chau chca chch chha chka chkb chua chub chuk ckac ckbc ckch ckck cuau cub- cuba cubb cuca cucc cuck cuk- cuka haab haak haba habu hack haha haka hakk haku hau- hcbc hcca hccb hccc hcch hhaa hhhh hkbu hkcc huac huah huba hubb huch huck hucu huhu huub kaaa kaab kaak kaba kabb kabc kabu kacb kacc kach kacu kaha kahc kahu kaka kakc kakh kakk kaku kau- kaub kauc kauk kbaa kbab kbac kbak kbba kbbb kbbc kbbk kbbu kbca kbcb kbch kbck kbcu kbhb kbhc kbhh kbkb kbkk kbua kbub kbuc kbuk kbuu kcaa kcab kcac kcah kcau kcba kcbc kcbk kcbu kcca kccb kccc kcck kccu kcha kchh kchk kchu kckc kckk kcua kcub kcuh kcuk khab khac khak khbc khca khcb khcc khch khck khhk khka khkk khub khuk kkaa kkac kkba kkbb kkcb kkch kkck kkha kkhb kkhh kkhk kkkk kkua kkuu kuac kuah kuau kuba kubb kubc kubu kuca kucb kucc kuch kuhu kuka kukh kukk kuku kuub kuuk kuuu uabc uaca uaua ubac ubba ucak ucbc ucca ucha ucka ucua uhuh ukba ukcc ukha uuuu