-al -ol a-a a-b aaa aab aae aal aam aao aap aas ab- aba abb abe abl abm abo abp abs aea aeb aee ael aem aeo aep aes al- ala alb ale all alm alo alp als ama amb ame aml amm amo amp ams aoa aob aoe aol aom aoo aop aos ap- apa apb ape apl apm apo app aps as- asa asb ase asl asm aso asp ass b-p baa bab bae bal bam bao bap bas bba bbb bbe bbl bbm bbo bbp bbs be- bea beb bee bel bem beo bep bes bla blb ble bll blm blo blp bls bma bmb bme bml bmm bmo bmp bms boa bob boe bol bom boo bop bos bpa bpb bpe bpl bpm bpo bpp bps bsa bsb bse bsl bsm bso bsp bss eaa eab eae eal eam eao eap eas eba ebb ebe ebl ebm ebo ebp ebs eea eeb eee eel eem eeo eep ees ela elb ele ell elm elo elp els em- ema emb eme eml emm emo emp ems eo- eoa eob eoe eol eom eoo eop eos ep- epa epb epe epl epm epo epp eps es- esa esb ese esl esm eso esp ess l-p la- laa lab lae lal lam lao lap las lba lbb lbe lbl lbm lbo lbp lbs lea leb lee lel lem leo lep les lla llb lle lll llm llo llp lls lma lmb lme lml lmm lmo lmp lms loa lob loe lol lom loo lop los lpa lpb lpe lpl lpm lpo lpp lps lsa lsb lse lsl lsm lso lsp lss m-o maa mab mae mal mam mao map mas mba mbb mbe mbl mbm mbo mbp mbs mea meb mee mel mem meo mep mes mla mlb mle mll mlm mlo mlp mls mma mmb mme mml mmm mmo mmp mms moa mob moe mol mom moo mop mos mpa mpb mpe mpl mpm mpo mpp mps msa msb mse msl msm mso msp mss oaa oab oae oal oam oao oap oas ob- oba obb obe obl obm obo obp obs oea oeb oee oel oem oeo oep oes ola olb ole oll olm olo olp ols om- oma omb ome oml omm omo omp oms oo- ooa oob ool oom ooo oop oos op- opa opb ope opl opm opo opp ops os- osa osb ose osl osm oso osp oss p-p paa pab pae pal pam pao pap pas pba pbb pbe pbl pbm pbo pbp pbs pea peb pee pel pem peo pep pes pla plb ple pll plm plo plp pls pma pmb pme pml pmm pmo pmp pms poa pob poe pol pom poo pop pos ppa ppb ppe ppl ppm ppo ppp pps ps- psa psb pse psl psm pso psp pss saa sab sae sal sam sao sap sas sba sbb sbe sbl sbm sbo sbp sbs se- sea seb see sel sem seo sep ses sla slb sle sll slm slo slp sls sma smb sme sml smm smo smp sms soa sob soe sol som soo sop sos spa spb spe spl spm spo spp sps ss- ssa ssb sse ssl ssm sso ssp sss