-th b-p bbb bbh bbi bbo bbp bbs bbt bhb bhh bhi bho bhp bhs bht bi- bib bih bii bio bip bis bit bob boh boi boo bop bos bot bpb bph bpi bpo bpp bps bpt bsb bsh bsi bso bsp bss bst btb bth bti bto btp bts btt h-i hbb hbh hbi hbo hbp hbs hbt hhb hhh hhi hho hhp hhs hht hib hih hii hio hip his hit hob hoh hoi hoo hop hos hot hpb hph hpi hpo hpp hps hpt hsb hsh hsi hsp hss hst htb hth hti hto htp hts htt ibb ibh ibi ibo ibp ibs ibt ihb ihh ihi iho ihp ihs iht iib iih iii iio iip iis iit io- iob ioh ioi ioo iop ios iot ipb ipi ipo ipp ips ipt is- isb ish isi iso isp iss ist itb ith iti ito itp its itt o-i ob- obb obh obi obo obp obs obt ohh ohi oho ohp ohs oht oib oii oio oip ois oit oo- oob ooh ooi ooo oop oos oot op- opb oph opi opo opp ops opt os- osb osh osi oso osp oss ost ot- otb oth oti oto otp ots ott p-p pbb pbi pbo pbp pbs pbt phb phi pho php phs pht pib pih pii pio pip pis pit pob poh poi poo pop pos pot ppb pph ppi ppo ppp pps ppt ps- psb psh psi pso psp pss pst pt- ptb pth pti pto ptp pts ptt sbb sbh sbi sbo sbp sbs sbt sh- shb shh shi sho shp shs sht sib sih sii sio sip sis sit sob soh soi soo sop sos sot spb sph spi spo spp sps spt ss- ssb ssh ssi sso ssp sss sst stb sth sti sto stp sts stt tbb tbh tbi tbo tbp tbs tbt th- thb thh thi tho thp ths tht tib tih tii tio tip tis tit to- tob toh toi too top tos tot tpb tph tpi tpo tpp tps tpt tsb tsh tsi tso tsp tss tst ttb tth tti tto ttp tts ttt