a-ak a-be a-ha a-ok aaaa aaab aaac aaae aaah aaba aabb aabc aabh aaca aacb aacc aace aach aack aaco aaea aaec aaha aahk aaka aake aaoe aaoo abaa abab abac abae abak abb- abba abbb abbe abbo abca abcb abcc abch abec abee abha abho aboa abob aboh abok aboo acaa acab acac acae acba acca accc acce acch acco ace- acea acec aceh acek acha ache achh acho acke acoa acoe acoh aeac aecb aeka ahab ahac ahah ahha ahoa ahoe ahok akaa akae akah akao akca akee akha akka akko akok aoah aoba aoca aoce baaa baah baak baba babb babe babo bac- baca bacc bace bach back baco baek baha baho bak- baka bake bakh bako baoh bbbb bbch bbeb bcaa bcbc bcca bccc bcec bche beah beak beba bebb bebe bebo beca bech beck beeb beek beka beke beko beo- beok bhao bhca bhcc boab boac boak boba bobb bobe bobo boca boce boch bock boco boea boec boee boeo boha boho boka boke boko boob booc booe booh book c-bo caaa caab caac caah caba cabe cabo cac- caca cacc cace cach cack caco caec caha cahe caka cake cbac cbbc cbca cbcc cbce cbea cbec cbee cbha cbka cbko ccaa ccab ccac ccba ccbc ccca cccb cccc ccee ccha cche ccob ccoc ceac ceba cec- ceca cece ceco ceeb ceec ceke chaa chab chac chae chah chak chao chca chce chch chea cheb chec chee cheh chek chha chka chkb choc choh chok choo ckac ckbc ckbe ckch ckck ckco ckoa ckob ckoc ckoo coak coba cobb cobe cobh cobo coca coce coch cock coco coha coho cok- coka coke coko coob cooh cook eaba eabh eaca eacc each eaec ebac ebba ebbc ebbo ebcc eboe eboo ecaa ecac ecao ecbc ecbe ecca eccb eccc ecce ecco echa eche echo ecka ecko eco- eeca eeea eeee eeka eeke eeoc ehaa ehcc ehea eheh eka- ekab ekch ekco ekeb ekek ekho ekka ekoa eoka haab haak haba habe habo hace hack haco haec haha haho haka hake hakk hako hboc hcbc hcca hccb hccc hcch heah hebb hebe hebo heca hech heck heeb heek hehe heho heka heke hhaa hhhh hkcc hoac hoba hobe hobo hoca hoce hoch hock hoek hoha hohe hoho hoka hoke hoko hooe hook kaaa kaab kaak kaba kabb kabc kabe kabo kacb kacc kace kach kaco kaeh kaeo kaha kahc kahe kaho kaka kakc kake kakh kakk kako kaoa kaoc kaok kbaa kbab kbac kbae kbak kbba kbbb kbbc kbbe kbbk kbbo kbca kbcb kbce kbch kbck kbco kbeb kbec kbee kbeh kbek kbeo kbhb kbhc kbhe kbhh kbkb kbkk kbko kboa kbob kboc kboe kbok kboo kcaa kcab kcac kcah kcba kcbc kcbk kcca kccb kccc kcck kcea kceb kcec kcee kceo kcha kche kchh kchk kcho kckc kckk kcko kcob kcoe kcoh kea- keak keba kebb kebc kebe keca kech keck keco keeh keek kehk keka kekb kekc keke keko keok khab khac khak khao khbc khca khcb khcc khch khck kheb khec khhk khho khka khke khkk khoa khob khoc khoe khok kkaa kkac kkba kkbb kkbe kkbo kkcb kkch kkck kkco kkea kkha kkhb kkhh kkhk kkkk kkoa kkob kkoh kkoo koab koac koae koak koba kobb kobc kobe kobk kobo koca kocb koch kock koea koha kohh koho koka kokb kokc koke kokh kokk koko koob kooc kook kooo o-eo oahe oake obak obba obbo obea obec obkb oboe obok ocab ocac ocak ocbc occa occc oce ocee ocha oche ocke oec- oeca oecc oeec ohba ohbe ohcc ohee ohho ohob ohoh ohok okak okeh okha okka okko okok ooaa ooak ooba oobe ooha ooho oooh oooo