-hou bbbb bbdd bbdo bbfn bddh bduf bhff bhuu bobb bobo bobu bodb bodh bodo bodu bofd boff bofh bofu bohd bohn boho bohu bond bonn bono bonu boob bood boof booh boon boud bouf bouh boun bubb bubo bubu budb budd budo budu buff bufo buho bunb bund bunn buno bunu buon d-bo dbfo dddd ddub dhod dhun dobb dobu dod- dodd dodo doff dond donn dono doob dood doof doon doub doud douf doun dub- dubb dubh dubu dudd dudo dudu duff dufu duhu dunn duno duo- duon ffff ffun fndd fndn fnuf fofo fohn fond fono food foof foon foud foun fubb fubu fudd fuff fufu fund funf funh hdod hhhh hhof hndd hobo hodh hoff hofu hohn hoho hond hono honu hood hoof hoon houd houf hubb hubo hudd hudo hudu huff hufu huhn huhu hund hunh huon huub nbbo nbhd nbuf nddb nddo ndhf nfff nfon nhnn nhon nndb nnnn nobo nobu nodo nodu nohn noho non- nonn nono nonu noo- noob noon nooo nouh noun nudd nudo nuff nunn nuno nuon obbo obon obuh odbo oddd odnb odoh odon odoo odou off- offh offo offu ofno ohho ohno ohob ohoh ondo onno onod onon ooff ooho oooh oooo oudh ouff oun- ound ouu- ubbo ubod ubon ubud udoh udon udoo udun uh-d uhno uhoh uhuh unbd undo unfd unno unon uofo uuno uuuu