-th b-p bbb bbh bbi bbo bbp bbr bbt bhb bhh bhi bho bhp bhr bht bi- bib bih bii bio bip bir bit bob boh boi boo bop bor bot bpb bph bpi bpo bpp bpr bpt brb brh bri bro brp brr brt btb bth bti bto btp btr btt h-i hbb hbh hbi hbo hbp hbr hbt hhb hhh hhi hho hhp hhr hht hib hih hii hio hip hir hit hob hoh hoi hoo hop hor hot hpb hph hpi hpo hpp hpr hpt hr- hrb hrh hri hro hrp hrr hrt htb hth hti hto htp htr htt ibb ibh ibi ibo ibp ibr ibt ihb ihh ihi iho ihp ihr iht iib iih iii iio iip iir iit io- iob ioh ioi ioo iop ior iot ipb ipi ipo ipp ipr ipt ir- irb iri iro irp irr irt itb ith iti ito itp itt o-i ob- obb obh obi obo obp obr obt ohh ohi oho ohp ohr oht oib oii oio oip oir oit oo- oob ooh ooi ooo oop oor oot op- opb oph opi opo opp opr opt or- orb orh ori oro orp orr ort ot- otb oth oti oto otp otr ott p-p pbb pbi pbo pbp pbr pbt phb phi pho php phr pht pib pih pii pio pip pir pit pob poh poi poo pop por pot ppb pph ppi ppo ppp ppr ppt prb prh pri pro prp prr prt pt- ptb pth pti pto ptp ptr ptt rbb rbh rbi rbo rbp rbr rbt rh- rhb rhh rhi rho rhp rhr rht rib rih rii rio rip rir rit rob roh roi roo rop ror rot rpb rph rpi rpo rpp rpr rpt rrb rrh rri rrp rrr rrt rtb rti rto rtp rtr rtt tbb tbh tbi tbo tbp tbr tbt th- thb thh thi tho thp thr tht tib tih tii tio tip tir tit to- tob toh toi too top tor tot tpb tph tpi tpo tpp tpr tpt trb trh tri tro trp trr trt ttb tth tti tto ttp ttr ttt