b-u bbb bbk bbn bbo bbr bbu bkb bkk bkn bko bkr bnb bnk bnn bno bnr bnu bob bok bon boo bor bou brb brk brn bro brr bru bub buk bun buo bur buu kbb kbk kbn kbo kbr kbu kkb kkk kkn kkr kku kn- knk knn kno knr knu kob kok kon koo kor kou krk krn kro krr kru kub kuk kun kur kuu nbb nbk nbn nbo nbr nbu nkk nkn nko nkr nku nnb nnk nnn nno nnu no- nob nok non noo nor nou nrb nrk nrn nro nrr nru nub nuk nun nuo nur nuu ob- obb obk obn obo obr obu okb okk oko okr oku on- onb onk onn ono onr onu oo- oob ook oon ooo oor or- orb ork orn oro orr oru ou- ouk oun ouo our rbb rbk rbn rbo rbr rbu rkb rkk rko rku rnb rnn rno rnr rnu rob rok ron roo ror rou rrb rrk rrn rrr rru rub ruk run ruo rur ruu ubb ubk ubn ubo ubr ubu ukb ukk ukn ukr uku un- unb unk unn uno unr unu uob uok uon uoo uor ur- urb urk urn uro urr uru uun uur uuu

bbbb bnor bnrr bobb bobo bobu bokn boko boku bonk bonn bono bonu boob book boon boor bor- bork born boro borr boru bouk boun bour brkb brno brob brok bron broo bror brou brrr brun bubb bubo bubu bukk buko buku bunb bunk bunn buno bunu buon bur- burb burk burn buro burr buru kbbb kbbk kbbo kbbr kbbu kbkb kbkk kbko kbkr kbnn kbno kbnr kbnu kbob kbok kbon kboo kbrb kbrk kbrn kbro kbru kbub kbuk kbun kbur kbuu kkbb kkbn kkbo kkbr kkkk kknb kknn kkno kknu kkob kkon kkoo kkor kkrb kkrk kkrn kkro kkrr kkuu knbb knbn knbr knbu knkk knnb knnk knnr knob knok knon knor knou knrb knrk knro knub knuk knur kobb kobk kobn kobo kobr kobu kokb kokk kokn koko kokr koku konk kono koob kook koon kooo koor koou korb kork korn koro korr koru koub kour kouu krbb krbk krbr krkk krkn krko krkr krku krnb krnk krnn krno krnu krob krok kroo kror krrb krrk krrn krro krrr kruk krun krur kubb kubo kubr kubu kukk kukn kuku kunk kuno kunr kunu kuok kuon kuoo kurb kurk kuro kurr kuru kuub kuuk kuur kuuu nbbo nkok nkor nnnn nobo nobu noko non- nonn nono nonu noo- noob nook noon nooo noor nor- norb nork norn noro norr noun nour nron nubk nuku nunk nunn nuno nuon nurn nurr nuru nuuk obbo obkb obok obon obor obro okko okno okok okon okor okro okun okur onno onon onor onur ooku oooo orbb orbo orbu orko orno oro- orok oron oror orro orub oun- our- ourn ouro ouu- rbbb rbbr rnbr rob- robb robo robu rokk roko rokr roku ronk rono roob rook roon roor rork roro roru roub rouk roun rrrr rrun rubb rubu rukk rukn ruku runk runn runo ruok ruro ruru ruun ubbo ubon ukko ukok ukon ukur unkn unko unno unon unro uor- uro- urok uroo uruk urun urur uuno uuuu

b-r-k bbook bkorn bo-bo bobko bobok bobr bokko bokok bokor bokun bonon bonou booko boonk boorn booru borbo borko borku born- borno bornu boro- borok boron boroo borou borro borun bouko bourn brobo bronk bronn brook broon brouk broun brrrr brunk brunn bruno bruun bubon bukk- buknu bukor 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 kokur konbu konno konnu konro konur koonu koorn kooru korbo korku korno koron koror korro koruk korun kouno krnuo kronk kroon kroun krunk kruun kubok kukko kukok kukur kunku kunur kurbu kurku kuruk nkubu nnooo no-no nobob nobuo nokko nokon non-u nonno noonu norbu norok noron norro norun nu-nu nunon nunun nuoro nuruk nurun o-bon o-r-b oboro obrok okkur okobo okoro okubo okuku okuru onoon onorn onour ooooo ornon orobo orono oruku oruro ouoro ourno ro-ro robbo robo- robon robor robun robur rokkk rokon ronk- ronko ronno ronok rorbu rouko rubon rubor runo- runon ubobo ukobu unkur unnun unnur unoor unorn unrun unurn urkun urnok uroob urour urubu uuork uuuuu

bbbbbb bobrok bobrun bokoro bonbon bonnor bonobo booboo borbon borbor borkou bornon boroko bororo boubou boukou bounou bourou brokkr bronko bronno brubru bruron buborn bububu bukkur bukuru burbur burnou burnuk buruku koboko kokoku kokoon kokoro kokoun kokubo konnor konnur kookoo koonur korkor kororo korubo korunk koruru koubou koukou kouoro kourou kronor kronur kuknur kunkur kunnur kurkun kuroko kururu nkonko nkoroo noboru nobuko non-no nonkon nonono nonoon noonoo noonor nounou nukkuu nukunu o-knon obokun onbook ookroo oooooo orokon orrour ouroun rokkor rokuko rokuro ronnon ronron rounou rubbon rubro- run-on unbook unborn unburn

bbbbbbb bok-bok bokonon bon-bon boo-boo boobook bornuur bourbon bourrou brokour bunroku kobroor kokonor kokorou kokubun kor-kor korborn korkoro kunukku kuokunu nonbook nonburn norrbro nukuoro oroboro oronoko rbubnon rubbour runbook ububboo

bbbbbbbb bo-bo-bo bonobono bookboon broubrou bunkobon buruburu kobukuro kokborok kukukuku kukuruku kuruburu kurukuru nokonoko nonboron nononono norbrook nukunonu orkounou oronooko oroonoko rokkurro ubbubboo

borborbor koukourou kukkunoor ouroubono runrunrun

bonnbonbon bonobonono bournbrook kouroukoro kukkurukuu

bonbonbooboo

bbbbbbbbbbbbbbb