a-a a-b aaa aab aak aan aao aar ab- aba abb abk abn abo abr aka akb akk akn ako akr an- ana anb ank ann ano anr aoa aob aok aon aoo aor ar- ara arb ark arn aro arr baa bab bak ban bao bar bba bbb bbk bbn bbo bbr bka bkb bkk bkn bko bkr bna bnb bnk bnn bno bnr boa bob bok bon boo bor bra brb brk brn bro brr ka- kaa kab kak kan kao kar kba kbb kbk kbn kbo kbr kkb kkk kkn kkr kn- kna knk knn kno knr koa kob kok kon koo kor kra krk krn kro krr naa nab nak nan nao nar nba nbb nbk nbn nbo nbr nka nkk nkn nko nkr nna nnb nnk nnn nno no- noa nob nok non noo nor nra nrb nrk nrn nro nrr oaa oab oak oan oao oar ob- oba obb obk obn obo obr oka okb okk oko okr on- ona onb onk onn ono onr oo- ooa oob ook oon ooo oor or- ora orb ork orn oro orr ra- raa rab rak ran rao rar rba rbb rbk rbn rbo rbr rkb rkk rko rna rnb rnn rno rnr roa rob rok ron roo ror rra rrb rrk rrn rrr

-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

-aaa- aabaa aabba aabra aakko aarna aaron abaab ababa abaka abako abana abank abann abano abaon abara abarn abban abbar abkar abkoo abnak aboab abobo abona abono abook aboon abora aborn abrak abran abrar abron akaba akabo akana akaoa akban akbar akkra akobo akoka akoko akona akono akorn akrak akrar akro- akron anaba anaka anana anara anban anbar ankaa ankor annan annar anoak anoba anoka anona anono anoon anora anorn ar-ab arab- araba arabo arana arank arano arara arbab arbar arbok arbon arbor arkan arkar arkna arkon arnan arnar arno- arnon arnor aroab aroar aroba arona aroon aroor arora arrak arran arron b-r-k baarn babak baban babar babka baboo babra bakan bakar bakka bakoa bakon bakra banak banan banar banba banka banna banon baoro baraa barab barak baran barao barar barba bark- barka barna baro- baroa barok baron baroo baror barra barro bbook bkorn bo-bo boann boano boaro bobak boban bobar bobko bobok bobr bokaa bokko bokok bokor bonab bonan bonao bonar bonka bonon booba booko boonk boora boorn borak boran borba borbo borka borko born- borna borno boro- boroa borok boron boroo borra borro braak brako brana brank brann broak brobo brona bronk bronn brook broon brora brrar brrrr k-a-o k-rab k-rob kaaba kabaa kabab kabak kaban kabar kabba kabob kabro kakan kakao kakar kakka kakko kako- kakon kakra kanab kanak kanka kanna kanno kanon kanoo kaona kaooa karak karan karka karna karno karob karok karon karoo kbank knark knarr knokk knork knorr ko-ko koara koban kobar kobra kokab kokak kokan kokka kokko kokna kokor kokra konak konan konar konka konna konno konro kooba kooka koona koorn korab korak koran korba korbo korna korno koroa koron koror korra korro kraak kraan kraar kraka krank krnka krona kronk kroon naaak naban nabao nabar nabba naboa nabob naboo nabor nakao nakar nakba nakoo nakor nanak nanan nanao nanka nann- nanna nanno nano- nanoa nanon naoko narak naran narka narok naroo naror narra