b-u bbb bbi bbm bbn bbo bbr bbu bby bi- bib bii bim bin bio bir biu biy bmb bmi bmm bmn bmo bmr bmu bnb bni bnn bno bnr bnu bob boi bom bon boo bor bou boy brb bri brm brn bro brr bru bry bub bui bum bun buo bur buu buy by- byi bym byn byo byr byu ibb ibi ibm ibn ibo ibr ibu iby iib iii iim iin iio iir iiu im- imb imi imm imn imo imu imy in- inb ini inm inn ino inr inu iny io- iob ioi iom ion ioo ior iou ir- irb iri irm irn iro irr iru iry iu- iub iui ium iur iym iyo iyr iyy m-o m-r mbb mbi mbm mbo mbr mbu mi- mib mii mim min mio mir miu miy mmb mmi mmm mmn mmo mmr mmu mnb mni mnm mnn mno mnr mnu mob moi mom mon moo mor mou moy mrb mri mrm mrn mro mrr mru mry mub mui mum mun mur muu muy my- myb mym myn myo myr myu n-i nbb nbi nbm nbn nbo nbr nbu nib nii nim nin nio nir niu nmb nmi nmm nmn nmo nmr nmu nnb nni nnm nnn nno nnu no- nob noi nom non noo nor nou noy nrb nri nrm nrn nro nrr nru nry nub nui num nun nuo nur nuu nuy nym nyn nyo nyu nyy o-i ob- obb obi obm obn obo obr obu oby oib oii oim oin oio oir oiu om- omb omi omm omn omo omr omu omy on- onb oni onn ono onr onu ony oo- oob ooi oom oon ooo oor or- orb ori orm orn oro orr oru ory ou- oui oum oun ouo our oyi oyo rbb rbi rbm rbn rbo rbr rbu rib rii rim rin rio rir riy rmb rmi rmm rmn rmo rmr rnb rni rnm rnn rno rnr rnu rny rob roi rom ron roo ror rou roy rrb rri rrm rrn rrr rru rub rui rum run ruo rur ruu ruy ry- rym ryn ryo ryr ryu ryy ubb ubi ubn ubo ubr ubu uby uib uii uim uin uio uir uiu um- umb umi umm umn umo umr umu un- unb uni unm unn uno unr unu uny uob uom uon uoo uor ur- urb uri urm urn uro urr uru ury uum uun uur uuu uyi uyo uyu ybi ybm ybr yby yii yim yin yio yir ymi ymm ymo ynn ynu yny yob yoi yom yon yoo yor you yoy yrn yro yru yui yum yun yuo yur yuu yuy yyb yyu yyy