b-u bbb bbd bbh bbn bbo bbu bby bdb bdd bdh bdo bdu bdy bhb bhd bhh bho bhu bnb bnd bnn bno bnu bob bod boh bon boo bou boy bub bud buh bun buo buu buy by- byd byh byn byo byu dbb dbd dbh dbn dbo dbu dby ddb ddd ddh ddn ddo ddu ddy dh- dhb dhd dhh dho dhu dnb dnd dnh dnn dno dny dob dod doh don doo dou doy dub dud duh dun duo duy dy- dyb dyd dyn dyo dyu dyy hbb hbd hbh hbn hbo hbu hby hdb hdd hdh hdn hdo hdu hdy hhb hhd hhh hhn hho hhu hhy hnb hnd hnh hnn hno hnu hny hob hod hoh hon hoo hou hoy hub hud huh hun huo huu huy hy- hyb hyd hyh hyn hyo hyy nbb nbd nbn nbo nbu ndb ndd ndh ndn ndo ndu ndy nhb nhd nhh nhn nhu nhy nnb nnh nnn nno nnu no- nob nod noh non noo nou noy nub nud nuh nun nuo nuu nuy nyd nyn nyo nyu nyy ob- obb obd obh obn obo obu oby odb odd odh odn odo odu ohd ohh ohn oho ohu on- onb ond onh onn ono onu ony oo- oob ood ooh oon ooo ou- oud ouh oun ouo oyd oyo ubb ubh ubn ubo ubu uby udb udd udn udo udu uhb uhd uhh uho uhu uhy un- unb und unh unn uno unu uny uob uod uon uoo uun uuu uyo uyu yby ydn ydo ydy yhu ynd ynn ynu yny yob yod yon yoo you yoy yud yuh yun yuo yuu yuy yyb yyu yyy