a-be a-ii aaaa aaab aaac aaae aaai aaal aaba aabb aabc aabi aabl aaca aacb aacc aace aaci aacl aacu aaea aaec aaib aaic aaii aala aalc aale aali aall aalu abaa abab abac abae abai abal abau abb- abba abbb abbe abbi abca abcb abcc abci abcl abec abee abel abia abib abic abie abil abiu abla able abua abue abul acaa acab acac acae acai acba acbl acca accc acce acci accu ace- acea acec acel aci- acia acic acie acla aclc acle acli aclu acu- acue acul aeac aebi aecb aeci aecl aela aelc aiai aiba aibl aica aicc aice aiea aiee aiel aiia aiib aiic aila aile aili ailu aiui alaa alac alae alai alal alau alb- alba albc albe albi albu alca alcc alce alea alec alee aleu ali- alia alib alie alii alil aliu all- alla alle alli alll allu alua alui auaa aube auca auce auci auel aul- aula aule auli aull aulu ba-i baaa baal baba babb babe babi babu bac- baca bacc bace baci bael baia baib baic baie bail bala balc bale bali ball balu bau- baul bbau bbbb bbci bbeb bblb bcaa bcbc bcca bccc bcci bccl bcec bcia bcie bcuc beal beau beba bebb bebe bebi beca beci becu beeb beel beia beic beil bela bele beli bell belu bial biba bibb bibe bibi bibl bica bicc bice bici bieb biel bieu bila bile bili bill bilu blaa blab blac blae blau blcu blea bleb blee blei bleu blic blub blue bual buba bubb bube bubi bubu buca bucc buce buci bucu buea buel bueu buic buie buiu bula bulb bule buli bull bulu caaa caab caac caal caba cabe cabi cabu cac- caca cacc cace caci caec caei caeu caia caib caic cail caiu cala calc cale cali call calu cauc caul cbac cbal cbbc cbca cbcc cbce cbcl cbcu cbea cbec cbee cbia cblb cblc ccaa ccab ccac ccai ccba ccbc ccca cccb cccc ccci cccl cccu ccee ccel ccic ccii ccil ccla cclc ccli ccuc ceac ceal ceba cebu cec- ceca cece ceci ceeb ceec ceel ceil cel- cela celc cele celi cell ceui ciaa cial ciau ciba cibc cibe cibi cica cicc cici cicu ciee ciel ciia ciii cila cili cill ciuc clab clai clau clea clec clee clei cleu clib clic clii club clue cuau cub- cuba cubb cube cubi cuca cucc cuce cuci cui- cuil cula culb culc cule cull e-cl e-la eaba eaca eacc eaec eaiu eala ealc eale ebac ebal ebba ebbc ebcc ebel ebic ebla ebli ebul ecaa ecac ecai ecal ecbc ecbe ecca eccb eccc ecce ecci eccl ecib ecil ecla ecua eeca eeea eeee eele eica eiec eiei eila eile el-b elab elac elai elal elba elbe elbi elbu elca elcb elce elea elec elee elia elic elie elil ella elle elli ellu elue elui elul euba eubc eubi eula eule i-be iaaa iaac iaai iaal iaba iaca iacc iacu iaea iaec iaia iala iale iall ialu ibac ibca ibea ibec ibia ibie ible icaa icab icac icai ical icbc icca iccb iccc icci iccl iccu icea icec icee icel icle icll icub icue ieac iecc ieie iele iiac iica iiie iiii iila iiuc ilac ilal ilbc ilca ilce ile- ilea ilec ilia ilic ilie ill- illa ille illi iucc iuce iuel iuiu laaa laac laal laba labe labi labu laca lacc lace laci lacl lacu lael laia laic laie lail lala lale lali lall lalu laub laue laul lbcc lbia lcac lcbc lcca lccc lcce lcia le-u leaa leal leau leba lebu leca lece leea leel leia leib leic leie leil lela lele leli lell lelu leuc liac liba libc libe libu lica lice lieb liel lieu liia liii lila lilb lile lili lill lilu liua liue llcc lleu lllc llll luai luau luba lube luca luce luci lula lule luli lull lulu luua u-ie uabc uaca uaua ubac ubal ubba ubbe ubbi ubic ubii ubla uble ubli ucai ucal ucbc ucca ucci ucea ucel ucil ucla ucua ueba uele ueli uell uica uile ulaa ulae ulai ulbc ulcc ulea uleb ulee ulic ulie ulla ulle ulli ulua ulul uulu uuuu