-al -ol a-a a-b aaa aab aae aal aam aao aas ab- aba abb abe abl abm abo abs aea aeb aee ael aem aeo aes al- ala alb ale all alm alo als ama amb ame aml amm amo ams aoa aob aoe aol aom aoo aos as- asa asb ase asl asm aso ass baa bab bae bal bam bao bas bba bbb bbe bbl bbm bbo bbs be- bea beb bee bel bem beo bes bla blb ble bll blm blo bls bma bmb bme bml bmm bmo bms boa bob boe bol bom boo bos bsa bsb bse bsl bsm bso bss eaa eab eae eal eam eao eas eba ebb ebe ebl ebm ebo ebs eea eeb eee eel eem eeo ees ela elb ele ell elm elo els em- ema emb eme eml emm emo ems eo- eoa eob eoe eol eom eoo eos es- esa esb ese esl esm eso ess la- laa lab lae lal lam lao las lba lbb lbe lbl lbm lbo lbs lea leb lee lel lem leo les lla llb lle lll llm llo lls lma lmb lme lml lmm lmo lms loa lob loe lol lom loo los lsa lsb lse lsl lsm lso lss m-o maa mab mae mal mam mao mas mba mbb mbe mbl mbm mbo mbs mea meb mee mel mem meo mes mla mlb mle mll mlm mlo mls mma mmb mme mml mmm mmo mms moa mob moe mol mom moo mos msa msb mse msl msm mso mss oaa oab oae oal oam oao oas ob- oba obb obe obl obm obo obs oea oeb oee oel oem oeo oes ola olb ole oll olm olo ols om- oma omb ome oml omm omo oms oo- ooa oob ool oom ooo oos os- osa osb ose osl osm oso oss saa sab sae sal sam sao sas sba sbb sbe sbl sbm sbo sbs se- sea seb see sel sem seo ses sla slb sle sll slm slo sls sma smb sme sml smm smo sms soa sob soe sol som soo sos ss- ssa ssb sse ssl ssm sso sss