b-p bbb bbh bbo bbp bbs bby bhb bhh bho bhp bhs bob boh boo bop bos boy bpb bph bpo bpp bps bpy bsb bsh bso bsp bss bsy by- byh byo byp bys hbb hbh hbo hbp hbs hby hhb hhh hho hhp hhs hhy hob hoh hoo hop hos hoy hpb hph hpo hpp hps hpy hsb hsh hsp hss hsy hy- hyb hyh hyo hyp hys hyy ob- obb obh obo obp obs oby ohh oho ohp ohs oo- oob ooh ooo oop oos op- opb oph opo opp ops opy os- osb osh oso osp oss oyo oys p-p pbb pbo pbp pbs pby phb pho php phs phy pob poh poo pop pos poy ppb pph ppo ppp pps ps- psb psh pso psp pss psy py- pyb pyo pys sbb sbh sbo sbp sbs sby sh- shb shh sho shp shs shy sob soh soo sop sos soy spb sph spo spp sps spy ss- ssb ssh sso ssp sss sy- syb syh syp sys ybp ybs yby yhs yob yoo yop yos yoy ypo yps ysb yso ysp yss ysy yyb yys yyy