a-ak a-be a-ii a-ya aaaa aaab aaac aaae aaai aaba aabb aabc aabi aaby aaca aacb aacc aace aaci aack aacy aaea aaec aaib aaic aaii aaka aake abaa abab abac abae abai abak abay abb- abba abbb abbe abbi abby abca abcb abcc abci abec abee abey abia abib abic abie abiy abyc abye abyy acaa acab acac acae acai acba acca accc acce acci accy ace- acea acec acek acey aci- acia acic acie acke aeac aebi aeby aecb aeci aeka aiai aiba aica aicc aice aiea aiee aiia aiib aiic aika aike aiki aiye akaa akae akai akay akca akee akey akia akie akik akka akki ayay ayca ayce ayie ayik ayya ba-i baaa baak baba babb babe babi baby bac- baca bacc bace baci back baek baia baib baic baie baik bak- baka bake baki baya baye bayi bbay bbbb bbci bbeb bcaa bcbc bcca bccc bcci bcec bcia bcie beak beay beba bebb bebe bebi beby beca beci beck beeb beek beey beia beic beik beka beke beki beya beye beyi beyk biak biba bibb bibe bibi bica bicc bice bici bick bieb bike biya bkcy byce byck byik byke byki caaa caab caac caba cabe cabi caby cac- caca cacc cace caci cack caec caei caia caib caic caik caka cake caky caye cbac cbbc cbca cbcc cbce cbea cbec cbee cbia cbka ccaa ccab ccac ccai ccba ccbc ccca cccb cccc ccci ccee ccic ccii ceac ceba cec- ceca cece ceci ceeb ceec ceke ciaa ciak ciba cibc cibe cibi cica cicc cici ciee ciia ciii cika ckac ckbc ckbe ckbi ckck ckcy ckey cya- cyaa cyba cybb cybc cybi cyc- cyca cycb cycc cyke cyy- cyyc eaba eaca eacc eaec ebac ebay ebba ebbc ebby ebcc ebic ebya ecaa ecac ecai ecbc ecbe ecca eccb eccc ecce ecci ecib ecka ecky eeby eeca eeea eeee eeka eeke eica eick eiec eiei eika eike eiki eka- ekab ekeb ekek ekka ekki eyak eyck eyeb eyec eyey eyik eyke i-be i-by iaaa iaac iaai iaba iaca iacc iaea iaec iaia iayc ibac ibca ibea ibec ibia ibie ibyi icaa icab icac icai icbc icca iccb iccc icci icea icec icee icey icke icky ieac iecc ieie ieya iiac iica iiie iiii ikea ikee ikey ikki ikky iyai k-ci kaaa kaab kaai kaak kaay kaba kabb kabc kabe kabi kaby kacb kacc kace kaci kacy kaei kaia kaib kaic kaie kaii kaik kaka kakc kake kaki kakk kaya kaye kbaa kbab kbac kbae kbai kbak kbay kbba kbbb kbbc kbbe kbbi kbbk kbca kbcb kbce kbci kbck kbcy kbeb kbec kbee kbek kbey kbia kbib kbic kbie kbik kbiy kbkb kbkk kbky kbya kbyb kbyi kcaa kcab kcac kcai kcba kcbc kcbi kcbk kcca kccb kccc kcci kcck kccy kcea kceb kcec kcee kcei kcey kcic kcie kcii kckc kckk kcky kcya kcye kcyk kcyy kea- keak keay keba kebb kebc kebe kebi keca keck keek keib keii keik keka kekb kekc keke keki keya keyb keye keyy kiab kiac kiai kiba kibb kibc kibe kibi kiby kica kicb kicc kice kick kicy kiia kiic kiii kiik kika kikc kiki kikk kiya kiyi kiyk kkaa kkac kkai kkay kkba kkbb kkbe kkbi kkcb kkci kkck kkcy kkea kkia kkic kkik kkkk kkya kkyc kkyy kyaa kyai kyak kyay kyba kybb kybc kybe kybi kyby kyca kycc kyck kyee kyka kykc kyke kykk kyky kyya kyyi kyyk kyyy yaak yaba yacc yack yacy yaik yaka yaki yaya ycab yccc ycee ycie yeck yeek yeie yeii yeka yeke yeki yeye yeyi yike ykey yyyy