-ey b-p bbb bbe bbi bbm bbo bbp bbs bby be- beb bee bei bem beo bep bes bey bi- bib bie bii bim bio bip bis biy bmb bme bmi bmm bmo bmp bms bob boe boi bom boo bop bos boy bpb bpe bpi bpm bpo bpp bps bpy bsb bse bsi bsm bso bsp bss bsy by- bye byi bym byo byp bys ebb ebe ebi ebm ebo ebp ebs eby eeb eee eem eeo eep ees eey eib eie eii eim eio eip eis em- emb eme emi emm emo emp ems eo- eob eoe eoi eom eoo eop eos ep- epb epe epi epm epo epp eps es- esb ese esi esm eso esp ess esy eye eym eyo eyp eys ibb ibe ibi ibm ibo ibp ibs iby ie- iee iei iem iep ies iey iib iie iii iim iio iip iis im- imb ime imi imm imo imp ims imy io- iob ioe ioi iom ioo iop ios ipb ipe ipi ipm ipo ipp ips ipy is- isb ise isi ism iso isp iss isy iye iym iyo iys iyy m-o mbb mbe mbi mbm mbo mbp mbs meb mee mei mem meo mep mes mey mi- mib mie mii mim mio mip mis miy mmb mme mmi mmm mmo mmp mms mob moe moi mom moo mop mos moy mpb mpe mpi mpm mpo mpp mps msb mse msi msm mso msp mss msy my- myb mye mym myo mys o-i ob- obb obe obi obm obo obp obs oby oeb oee oei oem oeo oep oes oey oib oie oii oim oio oip ois om- omb ome omi omm omo omp oms omy oo- oob ooi oom ooo oop oos op- opb ope opi opm opo opp ops opy os- osb ose osi osm oso osp oss oye oyi oyo oys p-p pbb pbe pbi pbm pbo pbp pbs pby peb pee pei pem peo pep pes pey pib pie pii pim pio pip pis pmb pme pmi pmm pmo pmp pms pob poe poi pom poo pop pos poy ppb ppe ppi ppm ppo ppp pps ps- psb pse psi psm pso psp pss psy py- pyb pye pym pyo pys sbb sbe sbi sbm sbo sbp sbs sby se- seb see sei sem seo sep ses sey sib sie sii sim sio sip sis smb sme smi smm smo smp sms smy sob soe soi som soo sop sos soy spb spe spi spm spo spp sps spy ss- ssb sse ssi ssm sso ssp sss sy- syb sye syi sym syp sys ybe ybi ybm ybp ybs yby yeb yee yei yem yeo yep yes yey yie yii yim yio yip yis yme ymi ymm ymo yms yob yoe yoi yom yoo yop yos yoy ypo yps ysb yse ysi ysm yso ysp yss ysy yyb yye yys yyy