a-be a-ii a-ya a-yo aaaa aaab aaac aaae aaaf aaai aaba aabb aabc aabi aaby aaca aacb aacc aace aacf aaci aaco aacy aaea aaec aafa aafb aafc aaff aafi aaib aaic aaii aaoe aaoo abaa abab abac abae abaf abai abay abb- abba abbb abbe abbi abbo abby abca abcb abcc abcf abci abec abee abey abff abia abib abic abie abiy aboa abob abof aboo aboy abyc abye abyy acaa acab acac acae acai acba acca accc acce accf acci acco accy ace- acea acec acey acfc acfe acfi aci- acia acic acie acif acoa acoe acoy aeac aeaf aebi aeby aecb aeci aeio afaa afao afca afcb afcc afci afee affa affc affi affo affy afia afib afif afoa afoe afoo afye aiai aiba aibo aica aicc aice aicf aiea aiee aiff aiia aiib aiic aioc aioi aiye aiyf aoba aoca aoce ay-o ayao ayay ayca ayce ayie ayoo ayya ba-i baaa baaf baba babb babe babi babo baby bac- baca bacc bace baci baco bafc baff bafo baia baib baic baie baio baya baye bayi bayo bbay bbbb bbci bbeb bbfc bboy bbyo bcaa bcbc bcca bccc bcci bcec bcfc bcia bcie bcof beaf beay beba bebb bebe bebi bebo beby beca beci beeb beef beey befa befe beff befo beia beic beo- beof beya beye beyi bfca biaf biao biba bibb bibe bibi bibo bica bicc bice bici bico bieb bief bifa biff bifi bio- bioc bioi biya boab boac boai boba bobb bobe bobi bobo boby boca boce boco boea boec boee boef boeo boey bofa bofe boff boi- boie boii boob booc booe boof boya boye boyf boyi boyo byce byoa byob byoc byoi c-bo caaa caab caac caaf caba cabe cabf cabi cabo caby cac- caca cacc cace caci caco caec caei cafa cafb cafc cafe caff caia caib caic caio caoi caye cayo cbac cbbc cbca cbcc cbce cbea cbec cbee cbef cbfb cbfc cbia ccaa ccab ccac ccaf ccai ccba ccbc ccca cccb cccc cccf ccci ccee ccfa ccfc ccff ccfi ccic ccii ccob ccoc ceac ceba cec- ceca cece ceci ceco ceeb ceec cef- cefa cefc cfaa cfab cfac cfae cfao cfbc cfca cfcb cfcf cfco cfcy cffb cfia cfoa ciaa ciao ciba cibc cibe cibi cibo cica cicc cici cico ciee cifa cife ciff ciia ciii ciob coai coba cobb cobe cobi cobo coby coca coce coco cofc cofe coff cofi coia coif coob coof coya coyf coyo cya- cyaa cyba cybb cybc cybi cybo cyc- cyca cycb cycc cyfe cyfi cyoa cyy- cyyc eaaf eaba eaca eacc eaec eafb eaif ebac ebay ebba ebbc ebbo ebby ebcc ebfc ebic eboe eboo eboy ebya ecaa ecac ecai ecao ecbc ecbe ecca eccb eccc ecce ecci ecco ecef ecfa ecfc ecib eco- eeby eeca eeea eeee eefa eefe eeoc efab efca efco efeo effa effi effy efic efya eiao eica eico eiec eiei eyeb eyec eyey eyfi eyio faaa faac faba fabe fabi fabo faca facc face facy faeb fafa fafc fafe faff fafi fafo faie faio faya faye fayo fcab fcba fcca fccf fcic fcii feaf feba febo fece feeb fefc fefe feff fefi fefo feia feie feio feof ffcc ffee ffff ffii fiaa fiac fiaf fiba fibe fica ficc fice fico fiec fief fifa fifc fife fiff fifi fifo fiii fioe foaf foba foca foce foci foco fofo foia foie foof foya fyce fyeo fyfe fyfi i-be i-by iaaa iaac iaai iaba iaca iacc iaea iaec iafc iafe iaff iaia iayc ibac ibca ibea ibec ibfi ibia ibie ibyi icaa icab icac icaf icai icao icbc icca iccb iccc iccf icci icco icea icec icee icef icey icfb icoc ieac iecc ieie ieio ieya ifaa ifac ifae ifao ifbb ifby ifco iffy ific ifyo iiac iica iifa iiie iiii iiio iioi iioo ioba iobi ioby ioci ioee iofc ioii ioio ioof iooi iooo iyai o-eo oafc oafo oaic obai obay obba obbo obby obea obec obey obia obie oboe oboi oboy ocab ocac ocbc occa occc occi oce ocee ocef ocfa oec- oeca oecc oeec oeya oeye oeyo ofay off- offa offc offe offo offy oiba oici oiii ooaa ooba oobe oobi ooby ooff oofy ooia oooo oyce oyee yaaf yaba yabo yacc yaco yacy yafa yafc yafe yaff yafo yaoi yaya yayo ycab ycao yccc ycee ycie yeaf yefe yeff yeie yeii yeof yeye yeyi yeyo yifa yiff yoba yobi yobo yoff yoof yoye yoyo yyfe yyff yyyy