-ana a-ak a-ok aaaa aaab aaan aaar aaba aabb aaka aana aaon aaoo aara aaro abaa abab abak aban abar abb- abba abbb abbo abbr aboa abob abok abon aboo abor abra abro akaa akan akao akar akka akko akna akok akon akr- akra ana- anaa anab anak anan anao anar anba anbb anbo ank- anka anko anna annb anno ano- anoa anon anor aoba aonb aono aora aorb aorn arab arak aran arar arba arka arko arna arnk arno aroa arob aron aroo aror arr- arra arrk arro arrr baaa baak baan baar baba babb babo babr bak- baka bako bakr bana bank bann bano banr baon bar- bara barb bark barn baro barr bbbb bnor bnrr boab boak boan boar boba bobb bobo boka bokn boko bona bonk bonn bono boob book boon boor bor- bora bork born boro borr brab brak bran brao brka brkb brna brno broa brob brok bron broo bror brrr kaaa kaab kaak kaan kaar kaba kabb kabo kabr kaka kakk kakn kako kana kanb kann kano kaoa kaok kaon kaor kara karb kark karn karo karr kbaa kbab kbak kbar kbba kbbb kbbk kbbo kbbr kbkb kbkk kbko kbkr kbna kbnn kbno kbnr kboa kbob kbok kbon kboo kbra kbrb kbrk kbrn kbro kkaa kkan kkar kkba kkbb kkbn kkbo kkbr kkkk kknb kknn kkno kkoa kkob kkon kkoo kkor kkrb kkrk kkrn kkro kkrr knaa knab knan knar knba knbb knbn knbr knkk knnb knnk knnr knob knok knon knor knrb knrk knro koab koak koan koar koba kobb kobk kobn kobo kobr koka kokb kokk kokn koko kokr kona konk kono koob kook koon kooo koor kora korb kork korn koro korr krab krak kran krar krba krbb krbk krbr krka krkk krkn krko krkr krna krnb krnk krnn krno kroa krob krok kroo kror krrb krrk krrn krro krrr naaa naab naan naar naba nabk nabo naka nako nan- nana nanb nann nano naor nara nark narn naro narr nbaa nbak nbar nbbo nkok nkor nnnn noaa noak noba nobo noko non- nona nonn nono noo- noob nook noon nooo noor nor- nora norb nork norn noro norr nrab nrna nron oara obak oban obba obbo obkb obok obon obor obra obro okak okan okka okko okna okno okok okon okor okra okro onab onan onar onna onno onon onor onra ooaa ooak ooba oona oooo oora orab orak oran orao orar orba orbb orbo orka orko orna orno oro- orok oron oror orra orro raab raak raan raba rabb rabk rabo raka rakk rana rank rann rano raob raok rara rarb rark raro rbbb rbbr rnbr roab roak roan roar rob- roba robb robo roka rokk roko rokr rona ronk rono roob rook roon roor rora rork roro rrna rrrr