a-ii aaaa aaab aaac aaai aaal aaba aabb aabc aabi aabl aaca aacb aacc aaci aacl aacu aaib aaic aaii aala aalc aali aall aalu abaa abab abac abai abal abau abb- abba abbb abbi abca abcb abcc abci abcl abia abib abic abil abiu abla abua abul acaa acab acac acai acba acbl acca accc acci accu aci- acia acic acla aclc acli aclu acu- acul aiai aiba aibl aica aicc aiia aiib aiic aila aili ailu aiui alaa alac alai alal alau alb- alba albc albi albu alca alcc ali- alia alib alii alil aliu all- alla alli alll allu alua alui auaa auca auci aul- aula auli aull aulu ba-i baaa baal baba babb babi babu bac- baca bacc baci baia baib baic bail bala balc bali ball balu bau- baul bbau bbbb bbci bblb bcaa bcbc bcca bccc bcci bccl bcia bcuc bial biba bibb bibi bibl bica bicc bici bila bili bill bilu blaa blab blac blau blcu blic blub bual buba bubb bubi bubu buca bucc buci bucu buic buiu bula bulb buli bull bulu caaa caab caac caal caba cabi cabu cac- caca cacc caci caia caib caic cail caiu cala calc cali call calu cauc caul cbac cbal cbbc cbca cbcc cbcl cbcu cbia cblb cblc ccaa ccab ccac ccai ccba ccbc ccca cccb cccc ccci cccl cccu ccic ccii ccil ccla cclc ccli ccuc ciaa cial ciau ciba cibc cibi cica cicc cici cicu ciia ciii cila cili cill ciuc clab clai clau clib clic clii club cuau cub- cuba cubb cubi cuca cucc cuci cui- cuil cula culb culc cull iaaa iaac iaai iaal iaba iaca iacc iacu iaia iala iall ialu ibac ibca ibia icaa icab icac icai ical icbc icca iccb iccc icci iccl iccu icll icub iiac iica iiii iila iiuc ilac ilal ilbc ilca ilia ilic ill- illa illi iucc iuiu laaa laac laal laba labi labu laca lacc laci lacl lacu laia laic lail lala lali lall lalu laub laul lbcc lbia lcac lcbc lcca lccc lcia liac liba libc libu lica liia liii lila lilb lili lill lilu liua llcc lllc llll luai luau luba luca luci lula luli lull lulu luua uabc uaca uaua ubac ubal ubba ubbi ubic ubii ubla ubli ucai ucal ucbc ucca ucci ucil ucla ucua uica ulaa ulai ulbc ulcc ulic ulla ulli ulua ulul uulu uuuu