b-u bbb bbk bbm bbn bbo bbr bbu bkb bkk bkm bkn bko bkr bmb bmk bmm bmn bmo bmr bmu bnb bnk bnn bno bnr bnu bob bok bom bon boo bor bou brb brk brm brn bro brr bru bub buk bum bun buo bur buu kbb kbk kbm kbn kbo kbr kbu kkb kkk kkm kkn kkr kku kmb kmk kmm kmo kmu kn- knk knm knn kno knr knu kob kok kom kon koo kor kou krk krn kro krr kru kub kuk kum kun kur kuu m-o m-r mbb mbk mbm mbo mbr mbu mkb mkk mkm mkn mko mkr mku mmb mmk mmm mmn mmo mmr mmu mnb mnk mnm mnn mno mnr mnu mob mok mom mon moo mor mou mrb mrk mrm mrn mro mrr mru mub muk mum mun mur muu nbb nbk nbm nbn nbo nbr nbu nkk nkm nkn nko nkr nku nmb nmk nmm nmn nmo nmr nmu nnb nnk nnm nnn nno nnu no- nob nok nom non noo nor nou nrb nrk nrm nrn nro nrr nru nub nuk num nun nuo nur nuu ob- obb obk obm obn obo obr obu okb okk oko okr oku om- omb omm omn omo omr omu on- onb onk onn ono onr onu oo- oob ook oom oon ooo oor or- orb ork orm orn oro orr oru ou- ouk oum oun ouo our rbb rbk rbm rbn rbo rbr rbu rkb rkk rkm rko rku rmb rmm rmn rmo rmr rnb rnm rnn rno rnr rnu rob rok rom ron roo ror rou rrb rrk rrm rrn rrr rru rub ruk rum run ruo rur ruu ubb ubk ubn ubo ubr ubu ukb ukk ukn ukr uku um- umb umm umn umo umr umu un- unb unk unm unn uno unr unu uob uok uom uon uoo uor ur- urb urk urm urn uro urr uru uum uun uur uuu

bbbb bnor bnrr bobb bobo bobu bokn boko boku bomb bomu bonk bonn bono bonu boob book boom boon boor bor- bork borm born boro borr boru bouk boum boun bour brkb brno brob brok brom bron broo bror brou brrm brrr brum brun bubb bubo bubu bukk buko buku bum- bumb bunb bunk bunn buno bunu buon bur- burb burk burm burn buro burr buru kbbb kbbk kbbm kbbo kbbr kbbu kbkb kbkk kbko kbkr kbmb kbmo kbmr kbnn kbno kbnr kbnu kbob kbok kbon kboo kbrb kbrk kbrn kbro kbru kbub kbuk kbun kbur kbuu kkbb kkbn kkbo kkbr kkkk kkmk kkmo kkmr kknb kknm kknn kkno kknu kkob kkon kkoo kkor kkrb kkrk kkrn kkro kkrr kkuu kmbr kmkk kmko kmmk kmmm kmmo kmmr kmnb kmnr kmob kmok kmom kmon kmor kmou kmrb kmrn kmro kmrr kmun kmur knbb knbn knbr knbu knkk knmb knnb knnk knnr knob knok knom knon knor knou knrb knrk knro knub knuk knur kobb kobk kobn kobo kobr kobu kokb kokk kokn koko kokr koku komb komo komr konk kono koob kook koon kooo koor koou korb kork korn koro korr koru koub koum kour kouu krbb krbk krbm krbr krkk krkn krko krkr krku krmb krmn krmo krmr krnb krnk krnm krnn krno krnu krob krok krom kroo kror krrb krrk krrm krrn krro krrr kruk krum krun krur kubb kubo kubr kubu kukk kukn kuku kumm kumo kumr kumu kunk kunm kuno kunr kunu kuok kuon kuoo kurb kurk kurm kuro kurr kuru kuub kuuk kuur kuuu mbou mknk mmmm mmor mmun mnbb mobb mobo moko momo momu mon- monk monn mono monu moob mook moon moor morb mork morn moro moru mouk moun mour mrbb mrbm mrkr mron mruk mubo muko mumm mumo mumu munk munn muno munu muon murk murn muro murr muru nbbo nkok nkor nkum nmon nnnn nobm nobo nobu noko nom- nomo nomu non- nonn nono nonu noo- noob nook noon nooo noor nor- norb nork norm norn noro norr noun nour nron nubk nuku numb numm numu nunk nunn nuno nuon nurn nurr nuru nuuk obbo obkb obok obon obor obro okko okmo okno okok okom okon okor okro okun okur ombo ombu omn- omo- omon omoo omor omro omuo onno onon onor onur ooku oooo orbb orbo orbu orko ormn ormo orno oro- orok orom oron oror orro orub orum oun- our- ourn ouro ouu- rbbb rbbr rbmk rmon rnbr rob- robb robo robu rokk roko rokr roku romb romk romm romo ronk rono roob rook room roon roor rork roro roru roub rouk roum roun rrkm rrrr rrum rrun rubb rubu rukk rukn ruku rumb rumm rumo runk runn runo ruok ruro ruru ruun ubbo ubon ukko ukok ukon ukum ukur umb- umbo ummo umno umok umor unkn unko unmr unno unon unro unum uomo uor- uro- urok urom uroo uruk urum urun urur uuno uuuu

b-r-k bbook bkorn bo-bo bobko bobok bobr bokko bokok bokor bokun bombo bonon bonou bonum booko boomb boonk boorn booru borbo borko borku bormo born- borno bornu boro- borok borom boron boroo borou borro borum borun bouko bourn brmmm brobo brom- bromo bronk bronn brook broom broon brouk broun brrrr brumm brunk brunn bruno bruun bubon bukk- buknu bukom bukor bumbo bumbu bunko bunuk bunun buono burn- buron buroo burro burru buruk burun k-rob knokk knork knorr knurr ko-ko kobru kobuk kobun kokko kokor kokou kokum kokur kombo kombu komku komon konbu konno konnu konro konur koonu koorn kooru korbo korku korno korom koron koror korro koruk korun kouno krnuo kromo kronk kroon kroun krumm krunk kruun kubok kukko kukok kukur kumbo kumon kumru kumuk kunku kunur kurbu kurku kuruk mboro mburu mmmmm mobor mobro mokko mokon mokro mokuk mokum mombo mombu monno mono- monok monon monor monro mookk moorn mooro morbo mormo moron moror morou morro morum morun mounk mourn mrmom mrorr mukur mumbo mummu mumok mumun munro murko murom muron muror murro murru muruk murum nbomb nkomo nkubu nnooo no-no nobob nobuo nokko nokon nommo nomo- nomom non-u nonno noonu