-al -ol a-a a-b aaa aab aad aaf aal aam aao aas ab- aba abb abd abf abl abm abo abs ad- ada adb add adf adl adm ado ads af- afa afb afd aff afl afm afo afs al- ala alb ald alf all alm alo als ama amb amd amf aml amm amo ams aoa aob aod aof aol aom aoo aos as- asa asb asd asf asl asm aso ass baa bab bad baf bal bam bao bas bba bbb bbd bbf bbl bbm bbo bbs bda bdb bdd bdf bdl bdm bdo bds bfa bfb bfd bff bfl bfm bfo bfs bla blb bld blf bll blm blo bls bma bmb bmd bmf bml bmm bmo bms boa bob bod bof bol bom boo bos bsa bsb bsd bsf bsl bsm bso bss daa dab dad daf dal dam dao das dba dbb dbd dbf dbl dbm dbo dbs dda ddb ddd ddf ddl ddm ddo dds dfa dfb dfd dff dfl dfm dfo dfs dl- dla dlb dld dlf dll dlm dlo dls dma dmb dmd dmf dml dmm dmo dms doa dob dod dof dol dom doo dos dsa dsb dsd dsf dsl dsm dso dss faa fab fad faf fal fam fao fas fba fbb fbd fbf fbl fbm fbo fbs fda fdb fdd fdf fdl fdm fdo fds ffa ffd fff ffl ffm ffo ffs fla flb fld flf fll flm flo fls fma fmb fmd fmf fml fmm fmo fms foa fob fof fol fom foo fos fsa fsb fsd fsf fsl fsm fso fss la- laa lab lad laf lal lam lao las lba lbb lbd lbf lbl lbm lbo lbs lda ldb ldd ldf ldl ldm ldo lds lfa lfb lfd lff lfl lfm lfo lfs lla llb lld llf lll llm llo lls lma lmb lmd lmf lml lmm lmo lms loa lob lod lof lol lom loo los lsa lsb lsd lsf lsl lsm lso lss m-f m-o maa mab mad maf mal mam mao mas mba mbb mbd mbf mbl mbm mbo mbs mda mdb mdd mdf mdl mdm mdo mds mfa mfb mfd mff mfl mfm mfo mfs mla mlb mld mlf mll mlm mlo mls mma mmb mmd mmf mml mmm mmo mms moa mob mod mof mol mom moo mos msa msb msd msf msl msm mso mss oaa oab oad oaf oal oam oao oas ob- oba obb obd obf obl obm obo obs oda odb odd odf odl odm odo ods of- ofa ofb ofd off ofl ofm ofo ofs ola olb old olf oll olm olo ols om- oma omb omd omf oml omm omo oms oo- ooa oob ood oof ool oom ooo oos os- osa osb osd osf osl osm oso oss saa sab sad saf sal sam sao sas sba sbb sbd sbf sbl sbm sbo sbs sda sdb sdd sdf sdl sdm sdo sds sfa sfb sfd sff sfl sfm sfo sfs sla slb sld slf sll slm slo sls sma smb smd smf sml smm smo sms soa sob sod sof sol som soo sos ss- ssa ssb ssd ssf ssl ssm sso sss