b-u bbb bbh bbk bbn bbo bbr bbu bhb bhh bhk bho bhr bhu bkb bkk bkn bko bkr bnb bnk bnn bno bnr bnu bob boh bok bon boo bor bou brb brh brk brn bro brr bru bub buh buk bun buo bur buu hbb hbh hbk hbn hbo hbr hbu hhb hhh hhk hhn hho hhr hhu hkb hkh hkk hkn hko hkr hku hnb hnh hnk hnn hno hnu hob hoh hok hon hoo hor hou hr- hrb hrh hrk hrn hro hrr hru hub huh huk hun huo hur huu kbb kbh kbk kbn kbo kbr kbu khh khk khn kho khr khu kkb kkh kkk kkn kkr kku kn- knk knn kno knr knu kob koh kok kon koo kor kou krk krn kro krr kru kub kuh kuk kun kur kuu nbb nbk nbn nbo nbr nbu nhb nhh nhk nhn nhr nhu nkk nkn nko nkr nku nnb nnh nnk nnn nno nnu no- nob noh nok non noo nor nou nrb nrk nrn nro nrr nru nub nuh nuk nun nuo nur nuu ob- obb obh obk obn obo obr obu ohh ohn oho ohr ohu okb okk oko okr oku on- onb onh onk onn ono onr onu oo- oob ooh ook oon ooo oor or- orb orh ork orn oro orr oru ou- ouh ouk oun ouo our rbb rbh rbk rbn rbo rbr rbu rh- rhb rhh rhn rho rhr rhu rkb rkk rko rku rnb rnh rnn rno rnr rnu rob roh rok ron roo ror rou rrb rrh rrk rrn rrr rru rub ruh ruk run ruo rur ruu ubb ubh ubk ubn ubo ubr ubu uhb uhh uho uhr uhu ukb ukk ukn ukr uku un- unb unh unk unn uno unr unu uob uok uon uoo uor ur- urb urk urn uro urr uru uun uur uuu

-hou bbbb bhor bhur bhuu bnor bnrr bobb bobo bobu bohn boho bohr bohu bokn boko boku bonk bonn bono bonu boob booh book boon boor bor- borh bork born boro borr boru bouh bouk boun bour brkb brno brob broh brok bron broo bror brou brrr bruh brun bubb bubo bubu buho buhr bukh bukk buko buku bunb bunk bunn buno bunu buon bur- burb burh burk burn buro burr buru hhhh hkbu hobo hohn hoho hoko hoku honk hono honu hook hoon hoor hork horn horo horr houk hour hrob hron hrun hubb hubo huhn huhu hunh hunk huon huor hurk hurn huro hurr huru huub kbbb kbbk kbbo kbbr kbbu kbhb kbhh kbhn kbhr kbkb kbkk kbko kbkr kbnh kbnn kbno kbnr kbnu kbob kbok kbon kboo kbrb kbrh kbrk kbrn kbro kbru kbub kbuk kbun kbur kbuu khbr khhk khho khkk khkn khkr khnk khnr khnu khob khok khon khor khou khrk khro khrr khub khuk khun khur kkbb kkbn kkbo kkbr kkhb kkhh kkhk kkhr kkkk kknb kknn kkno kknu kkob kkoh kkon kkoo kkor kkrb kkrh kkrk kkrn kkro kkrr kkuu knbb knbn knbr knbu knhk knkk knnb knnk knnr knob knok knon knor knou knrb knrk knro knub knuk knur kobb kobk kobn kobo kobr kobu kohh kohn koho kohr kohu kokb kokh 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 krkh krkk krkn krko krkr krku krnb krnh krnk krnn krno krnu krob kroh krok kroo kror krrb krrk krrn krro krrr kruh kruk krun krur kubb kubo kubr kubu kuhn kuhu kukh kukk kukn kuku kunk kuno kunr kunu kuok kuon kuoo kurb kurk kuro kurr kuru kuub kuuk kuur kuuu nbbo nhnn nhon nkok nkor nnnn nobo nobu nohn noho noko non- nonn nono nonu noo- noob nook noon nooo noor nor- norb nork norn noro norr nouh noun nour nron nubk nuku nunk nunn nuno nuon nurn nurr nuru nuuk obbo obkb obok obon obor obrh obro obuh ohho ohno ohob ohoh ohok ohrn okko okno okok okon okor okro okun okur onno onon onor onur ooho ooku oooh oooo orbb orbo orbu orko orno oro- orok oron oror orro orub oun- our- ourn ouro ouu- rbbb rbbr rboh rhob rhoh rhon rhun rnbr rob- robb robo robu rohn rohr rohu rokh rokk roko rokr roku ronk rono roob rook roon roor rork roro roru roub rouh rouk roun rrrr rrun rubb rubu ruhh ruhn ruhr rukh rukk rukn ruku runk runn runo ruok ruro ruru ruun ubbo ubon uhno uhoh uhok uhuh ukko ukok ukon ukur unkn unko unno unon unro uor- urho uro- urok uroo urrh uruk urun urur uuno uuuu

b-r-k bbook bhook bhoun bhour bkorn bo-bo bo-ho bobko bobok bobr bohok bohon bohor bohun 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 brohn bronk bronn brook broon brouk broun brrrr bruhn brunk brunn bruno bruun bubon bukk- buknu bukor bunko bunuk bunun buoho buono burn- buron buroo burro burru buruk burun hburn hhhhh hhour hnnbo ho-ho ho-oh hobor hobro hobub hokku honbu honko honno honor hoorn hornb horno horon horro horru hubur huhuh hukok huork huorn hurko hurok huron huuru k-rob khoku khonb khoro khour khuru khuur knokk knork knorr knurr ko-ko kobru kobuk kobun kohon kokko kokor kokou kokur konbu konno konnu konro konur koonu koorn kooru korbo korku korno koron koror korro koruk korun kouno krnuo krohn kronk kroon kroun krunk kruun kubok kukko kukok kukur kunku kunur kurbu kurku kuruk nkubu nnooo no-no nobob nobuo nohno nohor nokko nokon non-u nonno nonoh noonu norbu norok noron norro norun nu-nu nuhuh nunon nunun nuoro nuruk nurun o-bon o-r-b obhor oboro obrok oh-oh oh-ok ohorn ohour ohrob okkur okobo okoho okoro okubo okuku okuru onhbo onoon onorn onour ooooh ooooo ornon orobo orono oruku oruro ouoro ourno rhoon ro-ro robbo robo- robon robor robun robur rohob rohru rohun rokkk rokon ronk- ronko ronno ronok rookh rorbu