a-ak a-ok aaaa aaab aaac aaam aaar aaba aabb aabc aabm aaca aacb aacc aack aacm aaco aacr aaka aama aamb aamc aamo aamr aaoo aara aarc aarm aaro abaa abab abac abak abam abar abb- abba abbb abbo abbr abca abcb abcc abcr abma abmb abmc aboa abob abok aboo abor abra abrc abro acaa acab acac acar acba acca accc accm acco acma acmc acoa acom acor acr- acra acrc acrm acro acrr akaa akam akao akar akca akka akko akok akom akr- akra amaa amac amam amar amb- amba ambo ambr amca amcc amco amka amm- amma ammo amob amoc amok amoo amor amra amrc amro aoba aoca aoma aora aorb arab arac arak aram arar arba arc- arca arcm arco arka arko arma armc armm armo aroa arob arom aroo aror arr- arra arrc arrk arro arrr baaa baak baam baar baba babb babm babo babr bac- baca bacc back baco bak- baka bako bakr bama bamb bamc bamm bar- bara barb barc bark barm baro barr bbbb bbcm bbrc bcaa bcam bcar bcbc bcca bccc bccm bcma bcor bcra bmaa bmoc boab boac boak boar boba bobb bobo boca bock bocm boco boka boko boma bomb boob booc book boom boor bor- bora bork borm boro borr brab brac brak bram brao brca brcb brka brkb brmc broa brob broc brok brom broo bror brrm brrr c-bo caaa caab caac caam caba cabo cac- caca cacc cack cacm caco cacr caka cama camb camc camk camm camo caor cara carb carc cark carm caro carr cbac cbar cbbc cbca cbcc cbcm cbcr cbka cbkm cbko cbkr cbrm ccaa ccab ccac ccam ccar ccba ccbc ccca cccb cccc cccm cckm ccma ccmb ccmc ccmm ccob ccoc ccom ccra ccrc ckac ckbc ckck ckcm ckco ckmo ckoa ckob ckoc ckom ckoo ckor ckrc ckrm cmaa cmac cmba cmbc cmcc cmmb cmmc cmoc cmra cmrr coak coba cobb cobo coca cock coco cok- coka coko com- coma comb comc comm como comr coob cook coom cor- cora corb corc cork corm coro corr crab crac cram crar crbc crca crcc crcr crkc crmb crmo crob croc crok crom croo cror kaaa kaab kaak kaam kaar kaba kabb kabc kabo kabr kacb kacc kaco kaka kakc kakk kakm kako kam- kama kamb kamc kamm kamo kamr kaoa kaoc kaok kaor kara karb kark karm karo karr kbaa kbab kbac kbak kbam kbar kbba kbbb kbbc kbbk kbbm kbbo kbbr kbca kbcb kbck kbco kbcr kbkb kbkk kbko kbkr kbmb kbmc kbmo kbmr kboa kbob kboc kbok kboo kbra kbrb kbrc kbrk kbro kcaa kcab kcac kcam kcar kcba kcbc kcbk kcbr kcca kccb kccc kcck kccr kckc kckk kckm kcko kckr kcmb kcmc kcmk kcmm kcmo kcmr kcob kcom kcor kcrc kcro kcrr kkaa kkac kkam kkar kkba kkbb kkbo kkbr kkcb kkck kkcm kkco kkcr kkkk kkma kkmc kkmk kkmo kkmr kkoa kkob kkoo kkor kkrb kkrc kkrk kkro kkrr kmac kmak kmam kmbc kmbr kmca kmcb kmcc kmcm kmco kmcr kmkk kmko kmmk kmmm kmmo kmmr kmoa kmob kmoc kmok kmom kmor kmrb kmrc kmro kmrr koab koac koak koar koba kobb kobc kobk kobo kobr koca kocb kock kocm koka kokb kokc kokk koko kokr koma komb komc komo komr koob kooc kook kooo koor kora korb korc kork koro korr krab krac krak kram krar krba krbb krbk krbm krbr krca krcb krcc krcm krco krka krkc krkk krko krkr krma krmb krmc krmo krmr kroa krob kroc krok krom kroo kror krrb krrc krrk krrm krro krrr maaa maac maak maam maar maba mabo mac- maca macb macc mack maco macr maka mako mama mamc mamo maoc maor mar- mara marc mark marm maro marr mbac mbam mbba mbca mcaa mcac mcba mcbc mcca mccc mckk mcmc mcrc mkak mmaa mmab mmac mmar mmcc mmcm mmmc mmmm mmor mmrc moaa moab moac moam moar moba mobb mobo moca mock moco moka moko moma momo mooa moob mooc mook moor mora morb mork moro mr-c mrac mrbb mrbm mrca mrcb mrcc mrkr mrmc mrrc oama oara obak obba obbo obkb obok obor obra obro ocab ocac ocak ocam ocbc occa occc ocma ocom ocra ocro ocrr okak okam okka okko okmo okok okom okor okra okro omac omak omam omao omar ombo omca omma omo- omoa omoo omor omra omro ooaa ooak ooba oocr ooma oooo oora orab orac orak oram orao orar orba orbb orbo orca orco orka orko orma ormo oro- orok orom oror orra orro raab raak raam raba rabb rabk rabo rac- raca racc rack raco raka rakk rama ramb ramm ramo raob raoc raok raom rara rarb rark raro rbbb rbbr rbmk rcac rcbc rcbo rccb rccc roab roak roam roar rob- roba robb robo roca rocc rock roco roka rokk roko rokr roma romb romk romm romo roob rook room roor rora rorc rork roro rrkm rrmc rrrr