b-p bbb bbe bbh bbo bbp bbs be- beb bee beh beo bep bes bhb bhe bhh bho bhp bhs bob boe boh boo bop bos bpb bpe bph bpo bpp bps bsb bse bsh bso bsp bss ebb ebe ebh ebo ebp ebs eeb eee eeo eep ees ehb ehe ehh eho ehp ehs eo- eob eoe eoh eoo eop eos ep- epb epe eph epo epp eps es- esb ese esh eso esp ess hbb hbe hbh hbo hbp hbs he- heb hee heh heo hep hes hhb hhe hhh hho hhp hhs hob hoe hoh hoo hop hos hpb hpe hph hpo hpp hps hsb hse hsh hsp hss ob- obb obe obh obo obp obs oeb oee oeh oeo oep oes ohe ohh oho ohp ohs oo- oob ooh ooo oop oos op- opb ope oph opo opp ops os- osb ose osh oso osp oss p-p pbb pbe pbo pbp pbs peb pee peh peo pep pes phb phe pho php phs pob poe poh poo pop pos ppb ppe pph ppo ppp pps ps- psb pse psh pso psp pss sbb sbe sbh sbo sbp sbs se- seb see seh seo sep ses sh- shb she shh sho shp shs sob soe soh soo sop sos spb spe sph spo spp sps ss- ssb sse ssh sso ssp sss