b-p bbb bbh bbi bbp bbr bbs bhb bhh bhi bhp bhr bhs bi- bib bih bii bip bir bis bpb bph bpi bpp bpr bps brb brh bri brp brr brs bsb bsh bsi bsp bsr bss h-i hbb hbh hbi hbp hbr hbs hhb hhh hhi hhp hhr hhs hib hih hii hip hir his hpb hph hpi hpp hpr hps hr- hrb hrh hri hrp hrr hrs hsb hsh hsi hsp hsr hss ibb ibh ibi ibp ibr ibs ihb ihh ihi ihp ihr ihs iib iih iii iip iir iis ipb ipi ipp ipr ips ir- irb iri irp irr irs is- isb ish isi isp isr iss p-p pbb pbi pbp pbr pbs phb phi php phr phs pib pih pii pip pir pis ppb pph ppi ppp ppr pps prb prh pri prp prr prs ps- psb psh psi psp psr pss rbb rbh rbi rbp rbr rbs rh- rhb rhh rhi rhp rhr rhs rib rih rii rip rir ris rpb rph rpi rpp rpr rps rrb rrh rri rrp rrr rrs rsb rsh rsi rsp rsr rss sbb sbh sbi sbp sbr sbs sh- shb shh shi shp shr shs sib sih sii sip sir sis spb sph spi spp spr sps sr- srb srh sri srp srr srs ss- ssb ssh ssi ssp ssr sss