-ol b-p bbb bbe bbl bbm bbo bbp bbs be- beb bee bel bem beo bep bes blb ble bll blm blo blp bls bmb bme bml bmm bmo bmp bms bob boe bol bom boo bop bos bpb bpe bpl bpm bpo bpp bps bsb bse bsl bsm bso bsp bss ebb ebe ebl ebm ebo ebp ebs eeb eee eel eem eeo eep ees elb ele ell elm elo elp els em- emb eme eml emm emo emp ems eo- eob eoe eol eom eoo eop eos ep- epb epe epl epm epo epp eps es- esb ese esl esm eso esp ess l-p lbb lbe lbl lbm lbo lbp lbs leb lee lel lem leo lep les llb lle lll llm llo llp lls lmb lme lml lmm lmo lmp lms lob loe lol lom loo lop los lpb lpe lpl lpm lpo lpp lps lsb lse lsl lsm lso lsp lss m-o mbb mbe mbl mbm mbo mbp mbs meb mee mel mem meo mep mes mlb mle mll mlm mlo mlp mls mmb mme mml mmm mmo mmp mms mob moe mol mom moo mop mos mpb mpe mpl mpm mpo mpp mps msb mse msl msm mso msp mss ob- obb obe obl obm obo obp obs oeb oee oel oem oeo oep oes olb ole oll olm olo olp ols om- omb ome oml omm omo omp oms oo- oob ool oom ooo oop oos op- opb ope opl opm opo opp ops os- osb ose osl osm oso osp oss p-p pbb pbe pbl pbm pbo pbp pbs peb pee pel pem peo pep pes plb ple pll plm plo plp pls pmb pme pml pmm pmo pmp pms pob poe pol pom poo pop pos ppb ppe ppl ppm ppo ppp pps ps- psb pse psl psm pso psp pss sbb sbe sbl sbm sbo sbp sbs se- seb see sel sem seo sep ses slb sle sll slm slo slp sls smb sme sml smm smo smp sms sob soe sol som soo sop sos spb spe spl spm spo spp sps ss- ssb sse ssl ssm sso ssp sss