b-p bbb bbh bbi bbo bbp bbr bhb bhh bhi bho bhp bhr bi- bib bih bii bio bip bir bob boh boi boo bop bor bpb bph bpi bpo bpp bpr brb brh bri bro brp brr h-i hbb hbh hbi hbo hbp hbr hhb hhh hhi hho hhp hhr hib hih hii hio hip hir hob hoh hoi hoo hop hor hpb hph hpi hpo hpp hpr hr- hrb hrh hri hro hrp hrr ibb ibh ibi ibo ibp ibr ihb ihh ihi iho ihp ihr iib iih iii iio iip iir io- iob ioh ioi ioo iop ior ipb ipi ipo ipp ipr ir- irb iri iro irp irr o-i ob- obb obh obi obo obp obr ohh ohi oho ohp ohr oib oii oio oip oir oo- oob ooh ooi ooo oop oor op- opb oph opi opo opp opr or- orb orh ori oro orp orr p-p pbb pbi pbo pbp pbr phb phi pho php phr pib pih pii pio pip pir pob poh poi poo pop por ppb pph ppi ppo ppp ppr prb prh pri pro prp prr rbb rbh rbi rbo rbp rbr rh- rhb rhh rhi rho rhp rhr rib rih rii rio rip rir rob roh roi roo rop ror rpb rph rpi rpo rpp rpr rrb rrh rri rrp rrr