-hou bbbb bbdd bbdo bd-r bddh bhor bhur bhuu bnor bnrr bobb bobo bobu bodb bodh bodo bodu bohd bohn boho bohr bohu bokn boko boku bond bonk bonn bono bonu boob bood booh book boon boor bor- bord borh bork born boro borr boru boud bouh bouk boun bour brdo brkb brno brob brod broh brok bron broo bror brou brrr brud bruh brun bubb bubo bubu budb budd budo budu buho buhr bukh bukk buko buku bunb bund bunk bunn buno bunu buon bur- burb burd burh burk burn buro burr buru d-bo dbrn dddd ddub dhod dhor dhrn dhun dhur dnuk dobb dobu dod- dodd dodo dohr doko dond donk donn dono donr doob dood dook doon door dord dork dorn doro dorr doru doub doud douk doun dour drnh drno drob drod droh dron drou drub druk druu dub- dubb dubh dubu dudd dudo dudu duhr duhu duku dunk dunn duno duo- duon durk durn duro duru duur hdbk hdod hhhh hkbu hknd hndd hobo hodh hodk hodr hohn hoho hoko hoku hond honk hono honu hood hook hoon hoor hord hork horn horo horr houd houk hour hrdn hrob hrod hron hrud hrun hubb hubo hudd hudo hudu huhn huhu hund hunh hunk huon huor hurd hurk hurn huro hurr huru huub kbbb kbbd kbbk kbbo kbbr kbbu kbdb kbdn kbdo kbdr kbhb kbhh kbhn kbhr kbkb kbkk kbko kbkr kbnd kbnh kbnn kbno kbnr kbnu kbob kbod kbok kbon kboo kbrb kbrd kbrh kbrk kbrn kbro kbru kbub kbud kbuk kbun kbur kbuu kdbb kdbn kdbr kddb kddd kddk kddr kdhn kdkb kdkd kdkk kdkn kdko kdkr kdnd kdnk kdnn kdno kdnr kdok kdrb kdro kdub kdun kdur khbd khbr khdk khdn khdr khhk khho khkk khkn khkr khnd khnk khnr khnu khob khok khon khor khou khrd khrk khro khrr khub khud khuk khun khur kkbb kkbd kkbn kkbo kkbr kkdd kkdo kkhb kkhh kkhk kkhr kkkk kknb kknd kknn kkno kknu kkob kkoh kkon kkoo kkor kkrb kkrh kkrk kkrn kkro kkrr kkuu knbb knbn knbr knbu kndb kndd kndh kndk kndn kndo kndr kndu knhk knkk knnb knnd knnk knnr knob knod knok knon knor knou knrb knrk knro knub knud knuk knur kobb kobk kobn kobo kobr kobu kodk kodo kodu kohd kohh kohn koho kohr kohu kokb kokh kokk kokn koko kokr koku kond konk kono koob kook koon kooo koor koou korb kord kork korn koro korr koru koub kour kouu krbb krbd krbk krbr krdd krdo krdr krdu krkd krkh krkk krkn krko krkr krku krnb krnd krnh krnk krnn krno krnu krob krod kroh krok kroo kror krrb krrk krrn krro krrr kruh kruk krun krur kubb kubd kubo kubr kubu kudd kudo kudu kuhn kuhu kukh kukk kukn kuku kund kunk kuno kunr kunu kuok kuon kuoo kurb kurd kurk kuro kurr kuru kuub kuuk kuur kuuu nbbo nbhd nddb nddo ndor nhnn nhon nkok nkor nndb nnnn nobo nobu nodo nodu nohn noho noko non- nonn nono nonu noo- noob nook noon nooo noor nor- norb nord nork norn noro norr nouh noun nour nron nrrd nubk nudd nudo nuku nunk nunn nuno nuon nurd nurn nurr nuru nuuk obbo obkb obok obon obor obrh obro obuh odbo oddd odnb odoh odon odoo odor odou odur ohho ohno ohob ohoh ohok ohrn okko okno okok okon okor okro okun okur ondo onno onod onon onor onur ooho ooku oooh oooo oord orbb orbo orbu ordn ordo ordu orko orno oro- orok oron oror orro orub oudh oun- ound our- ourn ouro ouu- rbbb rbbr rboh rhob rhod rhoh rhon rhun rnbr rnod rob- robb robo robu rodd rodo rohn rohr rohu rokh rokk roko rokr roku rond ronk rono roob rood rook roon roor rork roro roru roub roud rouh rouk roun rrrr rrun rubb rubu rudd rudo ruhh ruhn ruhr rukh rukk rukn ruku rund runk runn runo ruok rurd ruro ruru ruud ruun ubbo ubod ubon ubud udoh udon udoo uduk udun uh-d uhno uhoh uhok uhuh ukko ukok ukon ukur unbd undo unkn unko unno unon unro uor- urdu urho uro- urok uroo urrh uruk urun urur uuno uuuu