b-p bbb bbe bbi bbm bbo bbp be- beb bee bei bem beo bep bi- bib bie bii bim bio bip bmb bme bmi bmm bmo bmp bob boe boi bom boo bop bpb bpe bpi bpm bpo bpp ebb ebe ebi ebm ebo ebp eeb eee eem eeo eep eib eie eii eim eio eip em- emb eme emi emm emo emp eo- eob eoe eoi eom eoo eop ep- epb epe epi epm epo epp ibb ibe ibi ibm ibo ibp ie- iee iei iem iep iib iie iii iim iio iip im- imb ime imi imm imo imp io- iob ioe ioi iom ioo iop ipb ipe ipi ipm ipo ipp m-o mbb mbe mbi mbm mbo mbp meb mee mei mem meo mep mi- mib mie mii mim mio mip mmb mme mmi mmm mmo mmp mob moe moi mom moo mop mpb mpe mpi mpm mpo mpp o-i ob- obb obe obi obm obo obp oeb oee oei oem oeo oep oib oie oii oim oio oip om- omb ome omi omm omo omp oo- oob ooi oom ooo oop op- opb ope opi opm opo opp p-p pbb pbe pbi pbm pbo pbp peb pee pei pem peo pep pib pie pii pim pio pip pmb pme pmi pmm pmo pmp pob poe poi pom poo pop ppb ppe ppi ppm ppo ppp