a-a aaa aae aaf aag aam aao aea aee aef aeg aem aeo af- afa afe aff afg afm afo ag- aga age agf agg agm ago ama ame amf amg amm amo aoa aoe aof aog aom aoo eaa eae eaf eag eam eao eea eee eef eeg eem eeo ef- efa efe eff efg efm efo ega ege egf egg egm ego em- ema eme emf emg emm emo eo- eoa eoe eof eog eom eoo faa fae faf fag fam fao fea fee fef feg fem feo ffa ffe fff ffg ffm ffo fga fge fgf fgg fgm fma fme fmf fmg fmm fmo foa foe fof fog fom foo gaa gae gaf gag gam gao ge- gea gee gef geg gem geo gfa gfe gff gfm gfo gga ggg ggm ggo gma gme gmf gmg gmm gmo goa goe gof gog gom goo m-f m-o maa mae maf mag mam mao mea mee mef meg mem meo mfa mfe mff mfg mfm mfo mga mge mgf mgm mgo mma mme mmf mmg mmm mmo moa moe mof mog mom moo oaa oae oaf oag oam oao oea oee oef oeg oem oeo of- ofa ofe off ofg ofm ofo oga oge ogf ogg ogo om- oma ome omf omg omm omo oo- ooa oof oog oom ooo