-th bbb bbh bbi bbo bbr bbt bby bhb bhh bhi bho bhr bht bi- bib bih bii bio bir bit biy bob boh boi boo bor bot boy brb brh bri bro brr brt bry btb bth bti bto btr btt bty by- byh byi byo byr byt h-i hbb hbh hbi hbo hbr hbt hby hhb hhh hhi hho hhr hht hhy hib hih hii hio hir hit hob hoh hoi hoo hor hot hoy hr- hrb hrh hri hro hrr hrt htb hth hti hto htr htt hty hy- hyb hyh hyi hyo hyr hyt hyy ibb ibh ibi ibo ibr ibt iby ihb ihh ihi iho ihr iht ihy iib iih iii iio iir iit io- iob ioh ioi ioo ior iot ir- irb iri iro irr irt iry itb ith iti ito itt ity iyo iyr iyt iyy o-i ob- obb obh obi obo obr obt oby ohh ohi oho ohr oht oib oii oio oir oit oo- oob ooh ooi ooo oor oot or- orb orh ori oro orr ort ory ot- otb oth oti oto otr ott oyi oyo rbb rbh rbi rbo rbr rbt rh- rhb rhh rhi rho rhr rht rib rih rii rio rir rit riy rob roh roi roo ror rot roy rrb rrh rri rrr rrt rtb rti rto rtr rtt rty ry- ryo ryr ryy tbb tbh tbi tbo tbr tbt th- thb thh thi tho thr tht thy tib tih tii tio tir tit tiy to- tob toh toi too tor tot toy trb trh tri tro trr trt try ttb tth tti tto ttr ttt tty tyo tyr tyt ybi ybr yby yhi yht yih yii yio yir yit yob yoi yoo yor yot yoy yro yrt yth yto ytr ytt yyb yyt yyy