b-p bbb bbi bbm bbo bbp bbs bby bi- bib bii bim bio bip bis biy bmb bmi bmm bmo bmp bms bob boi bom boo bop bos boy bpb bpi bpm bpo bpp bps bpy bsb bsi bsm bso bsp bss bsy by- byi bym byo byp bys ibb ibi ibm ibo ibp ibs iby iib iii iim iio iip iis im- imb imi imm imo imp ims imy io- iob ioi iom ioo iop ios ipb ipi ipm ipo ipp ips ipy is- isb isi ism iso isp iss isy iym iyo iys iyy m-o mbb mbi mbm mbo mbp mbs mi- mib mii mim mio mip mis miy mmb mmi mmm mmo mmp mms mob moi mom moo mop mos moy mpb mpi mpm mpo mpp mps msb msi msm mso msp mss msy my- myb mym myo mys o-i ob- obb obi obm obo obp obs oby oib oii oim oio oip ois om- omb omi omm omo omp oms omy oo- oob ooi oom ooo oop oos op- opb opi opm opo opp ops opy os- osb osi osm oso osp oss oyi oyo oys p-p pbb pbi pbm pbo pbp pbs pby pib pii pim pio pip pis pmb pmi pmm pmo pmp pms pob poi pom poo pop pos poy ppb ppi ppm ppo ppp pps ps- psb psi psm pso psp pss psy py- pyb pym pyo pys sbb sbi sbm sbo sbp sbs sby sib sii sim sio sip sis smb smi smm smo smp sms smy sob soi som soo sop sos soy spb spi spm spo spp sps spy ss- ssb ssi ssm sso ssp sss sy- syb syi sym syp sys ybi ybm ybp ybs yby yii yim yio yip yis ymi ymm ymo yms yob yoi yom yoo yop yos yoy ypo yps ysb ysi ysm yso ysp yss ysy yyb yys yyy