-th bbb bbh bbi bbo bbs bbt bby bhb bhh bhi bho bhs bht bi- bib bih bii bio bis bit biy bob boh boi boo bos bot boy bsb bsh bsi bso bss bst bsy btb bth bti bto bts btt bty by- byh byi byo bys byt h-i hbb hbh hbi hbo hbs hbt hby hhb hhh hhi hho hhs hht hhy hib hih hii hio his hit hob hoh hoi hoo hos hot hoy hsb hsh hsi hss hst hsy htb hth hti hto hts htt hty hy- hyb hyh hyi hyo hys hyt hyy ibb ibh ibi ibo ibs ibt iby ihb ihh ihi iho ihs iht ihy iib iih iii iio iis iit io- iob ioh ioi ioo ios iot is- isb ish isi iso iss ist isy itb ith iti ito its itt ity iyo iys iyt iyy o-i ob- obb obh obi obo obs obt oby ohh ohi oho ohs oht oib oii oio ois oit oo- oob ooh ooi ooo oos oot os- osb osh osi oso oss ost ot- otb oth oti oto ots ott oyi oyo oys sbb sbh sbi sbo sbs sbt sby sh- shb shh shi sho shs sht shy sib sih sii sio sis sit sob soh soi soo sos sot soy ss- ssb ssh ssi sso sss sst stb sth sti sto sts stt sty sy- syb syh syi sys syt tbb tbh tbi tbo tbs tbt th- thb thh thi tho ths tht thy tib tih tii tio tis tit tiy to- tob toh toi too tos tot toy tsb tsh tsi tso tss tst tsy ttb tth tti tto tts ttt tty tyo tys tyt ybi ybs yby yhi yhs yht yih yii yio yis yit yob yoi yoo yos yot yoy ysb ysi yso yss yst ysy yth yto yts ytt yyb yys yyt yyy