a-ak a-ok aaaa aaab aaam aaar aaba aabb aabm aaka aama aamb aamo aamr aaoo aara aarm aaro abaa abab abak abam abar abb- abba abbb abbo abbr abma abmb aboa abob abok aboo abor abra abro akaa akam akao akar akka akko akok akom akr- akra amaa amam amar amb- amba ambo ambr amka amm- amma ammo amob amok amoo amor amra amro aoba aoma aora aorb arab arak aram arar arba arka arko arma armm armo aroa arob arom aroo aror arr- arra arrk arro arrr baaa baak baam baar baba babb babm babo babr bak- baka bako bakr bama bamb bamm bar- bara barb bark barm baro barr bbbb bmaa boab boak boar boba bobb bobo boka boko boma bomb boob book boom boor bor- bora bork borm boro borr brab brak bram brao brka brkb broa brob brok brom broo bror brrm brrr kaaa kaab kaak kaam kaar kaba kabb kabo kabr kaka kakk kakm kako kam- kama kamb kamm kamo kamr kaoa kaok kaor kara karb kark karm karo karr kbaa kbab kbak kbam kbar kbba kbbb kbbk kbbm kbbo kbbr kbkb kbkk kbko kbkr kbmb kbmo kbmr kboa kbob kbok kboo kbra kbrb kbrk kbro kkaa kkam kkar kkba kkbb kkbo kkbr kkkk kkma kkmk kkmo kkmr kkoa kkob kkoo kkor kkrb kkrk kkro kkrr kmak kmam kmbr kmkk kmko kmmk kmmm kmmo kmmr kmoa kmob kmok kmom kmor kmrb kmro kmrr koab koak koar koba kobb kobk kobo kobr koka kokb kokk koko kokr koma komb komo komr koob kook kooo koor kora korb kork koro korr krab krak kram krar krba krbb krbk krbm krbr krka krkk krko krkr krma krmb krmo krmr kroa krob krok krom kroo kror krrb krrk krrm krro krrr maaa maak maam maar maba mabo maka mako mama mamo maor mar- mara mark marm maro marr mbam mbba mkak mmaa mmab mmar mmmm mmor moaa moab moam moar moba mobb mobo moka moko moma momo mooa moob mook moor mora morb mork moro mrbb mrbm mrkr oama oara obak obba obbo obkb obok obor obra obro okak okam okka okko okmo okok okom okor okra okro omak omam omao omar ombo omma omo- omoa omoo omor omra omro ooaa ooak ooba ooma oooo oora orab orak oram orao orar orba orbb orbo orka orko orma ormo oro- orok orom oror orra orro raab raak raam raba rabb rabk rabo raka rakk rama ramb ramm ramo raob raok raom rara rarb rark raro rbbb rbbr rbmk roab roak roam roar rob- roba robb robo roka rokk roko rokr roma romb romk romm romo roob rook room roor rora rork roro rrkm rrrr