-th bbb bbh bbi bbo bbr bbs bbt bby bhb bhh bhi bho bhr bhs bht bi- bib bih bii bio bir bis bit biy bob boh boi boo bor bos bot boy brb brh bri bro brr brs brt bry bsb bsh bsi bso bsr bss bst bsy btb bth bti bto btr bts btt bty by- byh byi byo byr bys byt h-i hbb hbh hbi hbo hbr hbs hbt hby hhb hhh hhi hho hhr hhs hht hhy hib hih hii hio hir his hit hob hoh hoi hoo hor hos hot hoy hr- hrb hrh hri hro hrr hrs hrt hsb hsh hsi hsr hss hst hsy htb hth hti hto htr hts htt hty hy- hyb hyh hyi hyo hyr hys hyt hyy ibb ibh ibi ibo ibr ibs ibt iby ihb ihh ihi iho ihr ihs iht ihy iib iih iii iio iir iis iit io- iob ioh ioi ioo ior ios iot ir- irb iri iro irr irs irt iry is- isb ish isi iso isr iss ist isy itb ith iti ito its itt ity iyo iyr iys iyt iyy o-i ob- obb obh obi obo obr obs obt oby ohh ohi oho ohr ohs oht oib oii oio oir ois oit oo- oob ooh ooi ooo oor oos oot or- orb orh ori oro orr ors ort ory os- osb osh osi oso osr oss ost ot- otb oth oti oto otr ots ott oyi oyo oys rbb rbh rbi rbo rbr rbs rbt rh- rhb rhh rhi rho rhr rhs rht rib rih rii rio rir ris rit riy rob roh roi roo ror ros rot roy rrb rrh rri rrr rrs rrt rsb rsh rsi rso rsr rss rst rtb rti rto rtr rts rtt rty ry- ryo ryr rys ryy sbb sbh sbi sbo sbr sbs sbt sby sh- shb shh shi sho shr shs sht shy sib sih sii sio sir sis sit sob soh soi soo sor sos sot soy sr- srb srh sri sro srr srs srt sry ss- ssb ssh ssi sso ssr sss sst stb sth sti sto str sts stt sty sy- syb syh syi syr sys syt tbb tbh tbi tbo tbr tbs tbt th- thb thh thi tho thr ths tht thy tib tih tii tio tir tis tit tiy to- tob toh toi too tor tos tot toy trb trh tri tro trr trs trt try tsb tsh tsi tso tsr tss tst tsy ttb tth tti tto ttr tts ttt tty tyo tyr tys tyt ybi ybr ybs yby yhi yhs yht yih yii yio yir yis yit yob yoi yoo yor yos yot yoy yro yrs yrt ysb ysi yso ysr yss yst ysy yth yto ytr yts ytt yyb yys yyt yyy