a-ha aaaa aaab aaac aaah aaal aaba aabb aabc aabh aabl aaca aacb aacc aach aacl aacu aaha aahl aala aalc aall aalu abaa abab abac abal abau abb- abba abbb abca abcb abcc abch abcl abha abla abua abul acaa acab acac acba acbl acca accc acch accu acha achh achl achu acla aclc aclu acu- acul ahab ahac ahah ahal ahau ahha ahla ahlu ahua alaa alac alal alau alb- alba albc albu alca alcc alha all- alla allh alll allu alua auaa auca auch aul- aula aull aulu baaa baah baal baba babb babu bac- baca bacc bach baha bahl bahu bala balc ball balu bau- baul bbau bbbb bbch bblb bcaa bcbc bcca bccc bccl bcuc bhca bhcc bhuu blaa blab blac blah blau blcu blub bual buba bubb bubu buca bucc buch bucu buha buhl bula bulb bull bulu caaa caab caac caah caal caba cabu cac- caca cacc cach caha cahl cala calc call calu cauc caul cbac cbal cbbc cbca cbcc cbcl cbcu cbha cbhl cblb cblc ccaa ccab ccac ccba ccbc ccca cccb cccc cccl cccu ccha cchl ccla cclc ccuc chaa chab chac chah chal chau chca chch chha chlc chua chub chul clab clau club cluh cuau cub- cuba cubb cuca cucc cula culb culc cull haab haal haba habu haha hal- hala halb hall halu hau- haul hcbc hcca hccb hccc hcch hhaa hhcl hhhh hhla hlah hlul huac huah huba hubb hubl huch hucu huhu hula hulc hull hulu huub laaa laac laal laba labu laca lacc lach lacl lacu laha lahu lala lall lalu laub laul lbcc lcac lcbc lcca lccc lchc lhau lhhh llcc lllc llll luah luau luba luca luch luhu lula lull lulu luua uabc uaca uaua ubac ubal ubba ubla ucal ucbc ucca ucha ucla ucua uhcl uhuh ulaa ulbc ulcc ulch ulla ulua ulul uulu uuuu