a-be a-ii a-ya aaaa aaab aaac aaae aaai aaba aabb aabc aabi aaby aaca aacb aacc aace aaci aacy aaea aaec aage aaib aaic aaii abaa abab abac abae abag abai abay abb- abba abbb abbe abbi abby abca abcb abcc abci abec abee abey abia abib abic abie abig abiy abyc abye abyy acaa acab acac acae acag acai acba acca accc acce acci accy ace- acea acec acey acga acgi aci- acia acic acie aeac aebi aeby aecb aeci aega agac agag agai agay agba agca agcc agce agcy agea agee agei agey agga agge aggi aggy agia agib agic agie agig agii agya agye aiai aiba aica aicc aice aiea aiee aiga aiia aiib aiic aiye ayay ayca ayce ayie ayya ba-i baaa baba babb babe babi baby bac- baca bacc bace baci baga bage bagg bagi bagy baia baib baic baie baig baya baye bayg bayi bbay bbbb bbci bbeb bbga bcaa bcbc bcbg bcca bccc bcci bcec bcia bcie beag beay beba bebb bebe bebi beby beca beci beeb beeg beey bega begg begi beia beic beya beye beyg beyi bgca bgia bgye biba bibb bibe bibi bica bicc bice bicg bici bieb biga bigb bigc bige bigg biya byce byge bygg caaa caab caac caba cabe cabg cabi caby cac- caca cacc cace caci caec caei caga cage cagg cagi cagy caia caib caic caye cbac cbbc cbca cbcc cbce cbea cbec cbee cbga cbgb cbia ccaa ccab ccac ccag ccai ccba ccbc ccca cccb cccc ccci ccee ccga ccgc ccic ccii ceac ceba cec- ceca cece ceci ceeb ceec cege cgac cgcc cgcg ciaa ciba cibc cibe cibi cica cicc cici ciee ciga cigi ciia ciii cya- cyaa cyba cybb cybc cybi cyc- cyca cycb cycc cyeg cygb cyy- cyyc eaba eaca eacc eaec eaga eage ebac ebay ebba ebbc ebby ebcc ebic ebya ecaa ecac ecai ecbc ecbe ecca eccb eccc ecce ecci ecib ecig eeby eeca eeea eeee eega egaa egae egba egbe egcc egcg egea egec egee eggb egge eggi eggy eica eiec eiei eige eigg eyeb eyec eyey gaba gabb gabe gabi gaby gace gacy gaea gaec gaga gage gagg gagi gaia gaie gaig gaya gaye gbag gc-c gcaa gcbc gccc gcic gcii geab geai geay geba gebe gebi geby geca gece gege gegg geia geic geie geig geyi gggg giaa giac giai giba gibb gibe giby gica giga gige gigg gigi gybe gyge i-be i-by iaaa iaac iaai iaba iaca iacc iaea iaec iaia iayc ibac ibca ibea ibec ibeg ibga ibge ibia ibie ibyi icaa icab icac icag icai icbc icca iccb iccc icci icea icec icee icey icga icgc ieac iecc ieie ieya igac igba igbc igcc igea igga iggy igia iiac iica iiie iiii iyai yaba yacc yacy yaga yage yagi yaya ycab yccc ycee ycie yegg yegi yeie yeii yeye yeyi yyyy