b-p bbb bbi bbm bbo bbp bbr bi- bib bii bim bio bip bir biz bmb bmi bmm bmo bmp bmr bmz bob boi bom boo bop bor boz bpb bpi bpm bpo bpp bpr brb bri brm bro brp brr brz bzo bzp bzr bzz ibb ibi ibm ibo ibp ibr ibz iib iii iim iio iip iir im- imb imi imm imo imp imz io- iob ioi iom ioo iop ior ipb ipi ipm ipo ipp ipr ir- irb iri irm iro irp irr izi izm izo izz m-o m-r mbb mbi mbm mbo mbp mbr mi- mib mii mim mio mip mir miz mmb mmi mmm mmo mmp mmr mmz mob moi mom moo mop mor moz mpb mpi mpm mpo mpp mpr mrb mri mrm mro mrp mrr mrz mzb mzi mzm mzp o-i ob- obb obi obm obo obp obr oib oii oim oio oip oir oiz om- omb omi omm omo omp omr omz oo- oob ooi oom ooo oop oor op- opb opi opm opo opp opr or- orb ori orm oro orp orr orz ozm ozo ozz p-p pbb pbi pbm pbo pbp pbr pbz pib pii pim pio pip pir piz pmb pmi pmm pmo pmp pmr pmz pob poi pom poo pop por poz ppb ppi ppm ppo ppp ppr ppz prb pri prm pro prp prr prz pzm pzp rbb rbi rbm rbo rbp rbr rib rii rim rio rip rir riz rmb rmi rmm rmo rmp rmr rob roi rom roo rop ror roz rpb rpi rpm rpo rpp rpr rpz rrb rri rrm rrp rrr rzb rzm rzo zbb zbm zbr zib zim zio zip zir ziz zmb zmm zmp zo- zob zoi zom zoo zor zpi zpm zpo zpp zpr zro zrp zzr zzz