-al -ol a-a a-b aaa aab aal aam aao aas ab- aba abb abl abm abo abs al- ala alb all alm alo als ama amb aml amm amo ams aoa aob aol aom aoo aos as- asa asb asl asm aso ass baa bab bal bam bao bas bba bbb bbl bbm bbo bbs bla blb bll blm blo bls bma bmb bml bmm bmo bms boa bob bol bom boo bos bsa bsb bsl bsm bso bss la- laa lab lal lam lao las lba lbb lbl lbm lbo lbs lla llb lll llm llo lls lma lmb lml lmm lmo lms loa lob lol lom loo los lsa lsb lsl lsm lso lss m-o maa mab mal mam mao mas mba mbb mbl mbm mbo mbs mla mlb mll mlm mlo mls mma mmb mml mmm mmo mms moa mob mol mom moo mos msa msb msl msm mso mss oaa oab oal oam oao oas ob- oba obb obl obm obo obs ola olb oll olm olo ols om- oma omb oml omm omo oms oo- ooa oob ool oom ooo oos os- osa osb osl osm oso oss saa sab sal sam sao sas sba sbb sbl sbm sbo sbs sla slb sll slm slo sls sma smb sml smm smo sms soa sob sol som soo sos ss- ssa ssb ssl ssm sso sss