-al -ol a-a a-b aaa aab aad aaf aal aam aao ab- aba abb abd abf abl abm abo ad- ada adb add adf adl adm ado af- afa afb afd aff afl afm afo al- ala alb ald alf all alm alo ama amb amd amf aml amm amo aoa aob aod aof aol aom aoo baa bab bad baf bal bam bao bba bbb bbd bbf bbl bbm bbo bda bdb bdd bdf bdl bdm bdo bfa bfb bfd bff bfl bfm bfo bla blb bld blf bll blm blo bma bmb bmd bmf bml bmm bmo boa bob bod bof bol bom boo daa dab dad daf dal dam dao dba dbb dbd dbf dbl dbm dbo dda ddb ddd ddf ddl ddm ddo dfa dfb dfd dff dfl dfm dfo dl- dla dlb dld dlf dll dlm dlo dma dmb dmd dmf dml dmm dmo doa dob dod dof dol dom doo faa fab fad faf fal fam fao fba fbb fbd fbf fbl fbm fbo fda fdb fdd fdf fdl fdm fdo ffa ffd fff ffl ffm ffo fla flb fld flf fll flm flo fma fmb fmd fmf fml fmm fmo foa fob fof fol fom foo la- laa lab lad laf lal lam lao lba lbb lbd lbf lbl lbm lbo lda ldb ldd ldf ldl ldm ldo lfa lfb lfd lff lfl lfm lfo lla llb lld llf lll llm llo lma lmb lmd lmf lml lmm lmo loa lob lod lof lol lom loo m-f m-o maa mab mad maf mal mam mao mba mbb mbd mbf mbl mbm mbo mda mdb mdd mdf mdl mdm mdo mfa mfb mfd mff mfl mfm mfo mla mlb mld mlf mll mlm mlo mma mmb mmd mmf mml mmm mmo moa mob mod mof mol mom moo oaa oab oad oaf oal oam oao ob- oba obb obd obf obl obm obo oda odb odd odf odl odm odo of- ofa ofb ofd off ofl ofm ofo ola olb old olf oll olm olo om- oma omb omd omf oml omm omo oo- ooa oob ood oof ool oom ooo