-ana -vac a-ak a-ok aaaa aaab aaac aaan aaav aaba aabb aabc aaca aacb aacc aack aacn aaco aacv aaka aana aaon aaoo aava abaa abab abac abak aban abb- abba abbb abbo abca abcb abcc abcn aboa abob abok abon aboo abov abva acaa acab acac acan acba acca accc acco acoa acon acvv akaa akan akao akca akka akko akna akok akon ana- anaa anab anac anak anan anao anba anbb anbo anca ancc anco ank- anka anko anna annb anno ano- anoa anon aoba aoca aonb aono avab avan avao avcc avco avon avva avvo baaa baak baan baba babb babo bac- baca bacc back bacn baco bak- baka bako bana banc bank bann bano baon bava bbbb bcaa bcbc bcca bccc bcvo bnoc boab boac boak boan boba bobb bobo boca bock boco boka bokn boko bona bonc bonk bonn bono boob booc book boon bova bovo c-bo caaa caab caac caan caba cabo cac- caca cacc cack caco caka cana canc cank cann cano cava cavo cbac cbbc cbca cbcc cbcn cbka cbkn cbko cbna cbva cbvb cbvn ccaa ccab ccac ccba ccbc ccbn ccca cccb cccc cccv ccna ccnb ccnc ccob ccoc ccvo ckac ckan ckbc ckck ckco ckcv cknb cknc ckoa ckob ckoc ckoo ckvo cnaa cnac cnbc cnco cnna coak coan coba cobb cobo coca cock coco cok- coka coko con- cona conc conk conn cono conv coob cook coon cova covo cvac cvca cvcc kaaa kaab kaak kaan kaba kabb kabc kabo kacb kacc kaco kacv kaka kakc kakk kakn kako kana kanb kann kano kanv kaoa kaoc kaok kaon kava kavb kavo kavv kbaa kbab kbac kbak kbba kbbb kbbc kbbk kbbo kbca kbcb kbck kbco kbkb kbkk kbko kbkv kbna kbnn kbno kbnv kboa kbob kboc kbok kbon kboo kbov kbva kbvb kbvc kbvo kcaa kcab kcac kcav kcba kcbc kcbk kcca kccb kccc kcck kccv kckc kckk kckn kcko kckv kcnb kcno kcnv kcob kcon kcvk kcvo kcvv kkaa kkac kkan kkba kkbb kkbn kkbo kkcb kkck kkcn kkco kkkk kknb kknn kkno kkoa kkob kkon kkoo kkov kkvv knaa knab knac knan knba knbb knbc knbn knca kncb knck kncn knco knkk knnb knnk knob knoc knok knon knva knvn knvo koab koac koak koan koba kobb kobc kobk kobn kobo koca kocb kock kocn koka kokb kokc kokk kokn koko kona konc konk kono koob kooc kook koon kooo koov kova kovc kovk kovo kvab kvak kvan kvbc kvcb kvcc kvck kvco kvcv kvna kvnc kvnn kvno kvoa kvob kvoc kvok kvon kvoo kvov kvvn kvvv naaa naab naac naan naba nabc nabk nabo naca nacc nack naco naka nako nan- nana nanb nann nano naoc nava navo navv nbaa nbak nbbc nbbo nbca nbcc nbco ncaa ncac ncba ncbc ncca nccc nccn ncna ncnc ncoa ncoc nkok nnnn noaa noac noak noba nobc nobo nock noco noko non- nona nonn nono noo- noob nook noon nooo noov nov- nova novo nvcc obak oban obba obbo obkb obok obon ocab ocac ocak ocan ocbc occa occc occn ocna ocon okak okan okka okko okna okno okok okon onab onan onc- onca onco onna onno onon ooaa ooak ooba oona oooo ovan ovo- ovon ovoo vaan vaca vack vaco vaka vana vanc vank vann vano vava vbcc vcon vnav voca voka vona vonk vonn vooc vovk vvob vvvv