-vac a-ak a-ok aaaa aaac aaae aaav aaca aacc aace aack aaco aacv aaea aaec aaev aaka aake aaoe aaoo aava acaa acac acae acca accc acce acco ace- acea acec acek acev acke acoa acoe acvv aeac aeka aeva akaa akae akao akca akee akka akko akok aoca aoce avao avaz avcc avce avco avea avec aveo avez avva avvo aza- azaz azca azo- azoo azov azza azzo caaa caac cac- caca cacc cace cack caco caec caka cake caoz cava cave cavo caza caze cazo ccaa ccac ccca cccc cccv ccee ccoc ccvo ceac cec- ceca cece ceco ceec ceke ceva cevo ceza ceze ckac ckck ckco ckcv ckoa ckoc ckoo ckvo coak coca coce cock coco cok- coka coke coko cook cova cove covo coze cozz cvac cvca cvcc eaca eacc eaec eave ecaa ecac ecao ecca eccc ecce ecco ecka ecko eco- eeca eeea eeee eeka eeke eeoc eeva eeze eka- ekco ekek ekka ekoa eoka evac evae evaz evea evoe evoo evvk ezek ezov ezzo kaaa kaak kacc kace kaco kacv kacz kaeo kaka kakc kake kakk kako kaoa kaoc kaok kava kave kavo kavv kavz kaza kazc kaze kazo kazz kcaa kcac kcav kcca kccc kcck kccv kcea kcec kcee kceo kcez kckc kckk kcko kckv kckz kcoe kcoz kcvk kcvo kcvv kcze kczo kczz kea- keak keaz keca keck keco keek keka kekc keke keko keok keva keve keza keze kezz kkaa kkac kkck kkco kkea kkez kkkk kkoa kkoo kkov kkoz kkvv kkzz koac koae koak koaz koca kock koea koka kokc koke kokk koko kokz kooc kook kooo koov kooz kova kovc kove kovk kovo koza koze kozk kozo kvak kvaz kvcc kvce kvck kvco kvcv kvea kvec kvoa kvoc kvoe kvok kvoo kvov kvoz kvvv kvvz kzaz kzee kzke kzkz kzoo kzoz kzza kzzk kzzo kzzv kzzz o-eo oake oaze ocac ocak occa occc oce ocee ocke oec- oeca oecc oeec okak okaz okka okko okok ooaa ooak oooo ooze ovee ovo- ovoo ozee ozek vaca vace vack vaco vaez vaka vake vava vaza vcez veak vecc veck veka veke veve vevo veza veze vkzv voca voce voka voke vooc vovk vvvv zaav zaca zack zaka zakk zave zaza zeae zeca zeck zeek zeke zeko zeve zeze zoco zoea zoke zoo- zook zovk zoza zozo zzzz