b-p bbb bbh bbi bbp bbs bby bhb bhh bhi bhp bhs bi- bib bih bii bip bis biy bpb bph bpi bpp bps bpy bsb bsh bsi bsp bss bsy by- byh byi byp bys h-i hbb hbh hbi hbp hbs hby hhb hhh hhi hhp hhs hhy hib hih hii hip his hpb hph hpi hpp hps hpy hsb hsh hsi hsp hss hsy hy- hyb hyh hyi hyp hys hyy ibb ibh ibi ibp ibs iby ihb ihh ihi ihp ihs ihy iib iih iii iip iis ipb ipi ipp ips ipy is- isb ish isi isp iss isy iys iyy p-p pbb pbi pbp pbs pby phb phi php phs phy pib pih pii pip pis ppb pph ppi ppp pps ps- psb psh psi psp pss psy py- pyb pys sbb sbh sbi sbp sbs sby sh- shb shh shi shp shs shy sib sih sii sip sis spb sph spi spp sps spy ss- ssb ssh ssi ssp sss sy- syb syh syi syp sys ybi ybp ybs yby yhi yhs yih yii yip yis yps ysb ysi ysp yss ysy yyb yys yyy