-ana a-ak a-ok aaaa aaab aaan aaar aaav aaba aabb aaka aana aaon aaoo aara aaro aava abaa abab abak aban abar abb- abba abbb abbo abbr aboa abob abok abon aboo abor abov abra abro abva 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 arva arvn arvo avab avan avao avar avon avor avra avro avva avvo 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 bava 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 bova bovo brab brak bran brao brav 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 kanv kaoa kaok kaon kaor kara karb kark karn karo karr karv kava kavb kavo kavv kbaa kbab kbak kbar kbba kbbb kbbk kbbo kbbr kbkb kbkk kbko kbkr kbkv kbna kbnn kbno kbnr kbnv kboa kbob kbok kbon kboo kbov kbra kbrb kbrk kbrn kbro kbrv kbva kbvb kbvo kbvr kkaa kkan kkar kkba kkbb kkbn kkbo kkbr kkkk kknb kknn kkno kkoa kkob kkon kkoo kkor kkov kkrb kkrk kkrn kkro kkrr kkrv kkvr kkvv knaa knab knan knar knba knbb knbn knbr knkk knnb knnk knnr knob knok knon knor knrb knrk knro knrv knva knvn knvo knvr koab koak koan koar koba kobb kobk kobn kobo kobr koka kokb kokk kokn koko kokr kona konk kono koob kook koon kooo koor koov kora korb kork korn koro korr korv kova kovk kovo kovr krab krak kran krar krav krba krbb krbk krbr krka krkk krkn krko krkr krkv krna krnb krnk krnn krno krnv kroa krob krok kroo kror krov krrb krrk krrn krro krrr krva krvb krvk krvn krvo krvr krvv kvab kvak kvan kvar kvbr kvna kvnn kvno kvnr kvoa kvob kvok kvon kvoo kvor kvov kvra kvro kvrr kvrv kvvn kvvr kvvv naaa naab naan naar naba nabk nabo naka nako nan- nana nanb nann nano naor nara nark narn naro narr nava navo navr navv nbaa nbak nbar nbbo nkok nkor nnnn noaa noak noba nobo noko non- nona nonn nono noo- noob nook noon nooo noor noov nor- nora norb nork norn noro norr norv nov- nova novo 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 orav orba orbb orbo orka orko orna orno oro- orok oron oror orra orro orvr ovan ovar ovo- ovon ovoo ovra raab raak raan raba rabb rabk rabo raka rakk rana rank rann rano raob raok rara rarb rark raro rava 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 rova rovo rrna rrrr vaan vaar vaka vana vank vann vano vara vark varn varr vava vkor vnav voar voka vona vonk vonn voor vor- vora voro vovk vrak vran vrav vrba vrnn vron vvob vvvv