a-do a-ha aaaa aaac aaad aaae aaah aaca aacc aacd aace aach aaco aada aadc aade aaea aaec aaha aaoe aaoo acaa acac acad acae acca accc accd acce acch acco acda acdc acde ace- acea acec aced aceh acha ache achh acho acoa acod acoe acoh adaa adac adad adae adah adao adcc adda addc addd adde addo adea adee adeh adeo adha adhd adho adoc adod adoe adoo adox aeac aede ahac ahad ahah ahed ahex ahha ahoa ahod ahoe aoah aoca aoce aodh axce axed axo- axoa axxo c-cd caaa caac caah cac- caca cacc cace cach caco cada cadc cadd cade cado caec caex caha cahe caod caxa ccaa ccac ccad ccca cccc ccdc ccdh cced ccee ccha cche ccoc ccod cd-e cdaa cdac cdad cdax cdda cdec cdex ceac cead cec- ceca cece ceco ceda cedd cede cedo ceec cexe chaa chac chad chae chah chao chax chca chce chch chea chec ched chee cheh chex chha choc chod choh choo coad coax coca coce coch coco coda codd code coed coex coha coho cood cooh coxa coxe cxxx daad daae daca dace dada dade dado daha dahe dcca dccc dche dcxx dddd ddoc deac dead deae dec- deca decc decd dece deco deda dedd dede dedo deed deha dex- dexa dexe dhaa dhad dhao dhec dhed dhee dhod do-x doae doca doce doch doco dod- doda dodd dode dodo doea doha dohc dood doxa dxcc dxco dxdc dxec dxed dxoc dxxx eaca eacc each eada eadd eaec ecaa ecac ecad ecao ecca eccc ecce ecco ecdc eced echa eche echo eco- ecod edac edad edah edax edca edda eddc edde eddo ede- edea edeh edex edoc edod eeca eede eeea eeee eeoc ehaa ehcc ehdd ehea eheh eocd eode exa- exch exco exda exec exed exh- exo- exod haad hace haco hada hade hadh haec haed haha haho haxe haxo hcca hccc hcch hdax hdca hdda hdoc hdod head heah heca hech heda hedd hede hedo heed hehe heho hex- hexa hexe hhaa hhex hhhh hoac hoad hoax hoca hoce hoch hoda hode hodh hoed hoha hohe hoho hood hooe hoox hoxa o-eo oade oahe ocac ocad occa occc oce oced ocee ocha oche odac odah odax odda oddd odea oded odeo odex odoh odoo oeax oec- oeca oecc oedo oeec ohad ohcc ohed ohee ohho ohoh ooaa ooda ooha ooho oooh oooo oxa- oxea oxo- oxox oxxo x-ed xace xado xdcc xexe xoca xoco xoxo xxxo xxxx