-hou bbbb bbdd bbdo bddh bhuu bobb bobo bobu bodb bodh bodo bodu bohd bohn boho bohu bokn boko boku bond bonk bonn bono bonu boob bood booh book boon boud bouh bouk boun bubb bubo bubu budb budd budo budu buho bukh bukk buko buku bunb bund bunk bunn buno bunu buon d-bo dddd ddub dhod dhun dnuk dobb dobu dod- dodd dodo doko dond donk donn dono doob dood dook doon doub doud douk doun dub- dubb dubh dubu dudd dudo dudu duhu duku dunk dunn duno duo- duon hdbk hdod hhhh hkbu hknd hndd hobo hodh hodk hohn hoho hoko hoku hond honk hono honu hood hook hoon houd houk hubb hubo hudd hudo hudu huhn huhu hund hunh hunk huon huub kbbb kbbd kbbk kbbo kbbu kbdb kbdn kbdo kbhb kbhh kbhn kbkb kbkk kbko kbnd kbnh kbnn kbno kbnu kbob kbod kbok kbon kboo kbub kbud kbuk kbun kbuu kdbb kdbn kddb kddd kddk kdhn kdkb kdkd kdkk kdkn kdko kdnd kdnk kdnn kdno kdok kdub kdun khbd khdk khdn khhk khho khkk khkn khnd khnk khnu khob khok khon khou khub khud khuk khun kkbb kkbd kkbn kkbo kkdd kkdo kkhb kkhh kkhk kkkk kknb kknd kknn kkno kknu kkob kkoh kkon kkoo kkuu knbb knbn knbu kndb kndd kndh kndk kndn kndo kndu knhk knkk knnb knnd knnk knob knod knok knon knou knub knud knuk kobb kobk kobn kobo kobu kodk kodo kodu kohd kohh kohn koho kohu kokb kokh kokk kokn koko koku kond konk kono koob kook koon kooo koou koub kouu kubb kubd kubo kubu kudd kudo kudu kuhn kuhu kukh kukk kukn kuku kund kunk kuno kunu kuok kuon kuoo kuub kuuk kuuu nbbo nbhd nddb nddo nhnn nhon nkok nndb nnnn nobo nobu nodo nodu nohn noho noko non- nonn nono nonu noo- noob nook noon nooo nouh noun nubk nudd nudo nuku nunk nunn nuno nuon nuuk obbo obkb obok obon obuh odbo oddd odnb odoh odon odoo odou ohho ohno ohob ohoh ohok okko okno okok okon okun ondo onno onod onon ooho ooku oooh oooo oudh oun- ound ouu- ubbo ubod ubon ubud udoh udon udoo uduk udun uh-d uhno uhoh uhok uhuh ukko ukok ukon unbd undo unkn unko unno unon uuno uuuu