-th bbb bbh bbi bbo bbs bbt bhb bhh bhi bho bhs bht bi- bib bih bii bio bis bit bob boh boi boo bos bot bsb bsh bsi bso bss bst btb bth bti bto bts btt h-i hbb hbh hbi hbo hbs hbt hhb hhh hhi hho hhs hht hib hih hii hio his hit hob hoh hoi hoo hos hot hsb hsh hsi hss hst htb hth hti hto hts htt ibb ibh ibi ibo ibs ibt ihb ihh ihi iho ihs iht iib iih iii iio iis iit io- iob ioh ioi ioo ios iot is- isb ish isi iso iss ist itb ith iti ito its itt o-i ob- obb obh obi obo obs obt 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 sbb sbh sbi sbo sbs sbt sh- shb shh shi sho shs sht sib sih sii sio sis sit sob soh soi soo sos sot ss- ssb ssh ssi sso sss sst stb sth sti sto sts stt tbb tbh tbi tbo tbs tbt th- thb thh thi tho ths tht tib tih tii tio tis tit to- tob toh toi too tos tot tsb tsh tsi tso tss tst ttb tth tti tto tts ttt