bbb bbi bbn bbo bbr bbt bby bi- bib bii bin bio bir bit biy bnb bni bnn bno bnr bnt bob boi bon boo bor bot boy brb bri brn bro brr brt bry btb bti btn bto btr btt bty by- byi byn byo byr byt ibb ibi ibn ibo ibr ibt iby iib iii iin iio iir iit in- inb ini inn ino inr int iny io- iob ioi ion ioo ior iot ir- irb iri irn iro irr irt iry itb iti itn ito itt ity iyo iyr iyt iyy n-i nbb nbi nbn nbo nbr nbt nib nii nin nio nir nit nnb nni nnn nno nnt no- nob noi non noo nor not noy nrb nri nrn nro nrr nrt nry ntb nti ntn nto ntr ntt nyn nyo nyt nyy o-i ob- obb obi obn obo obr obt oby oib oii oin oio oir oit on- onb oni onn ono onr ont ony oo- oob ooi oon ooo oor oot or- orb ori orn oro orr ort ory ot- otb oti otn oto otr ott oyi oyo rbb rbi rbn rbo rbr rbt rib rii rin rio rir rit riy rnb rni rnn rno rnr rnt rny rob roi ron roo ror rot roy rrb rri rrn rrr rrt rtb rti rtn rto rtr rtt rty ry- ryn ryo ryr ryy tbb tbi tbn tbo tbr tbt tib tii tin tio tir tit tiy tnb tni tnn tno tnr tnt to- tob toi ton too tor tot toy trb tri trn tro trr trt try ttb tti ttn tto ttr ttt tty tyn tyo tyr tyt ybi ybr yby yii yin yio yir yit ynn yny yob yoi yon yoo yor yot yoy yrn yro yrt ytn yto ytr ytt yyb yyt yyy