a-a aaa aad aaf aag aao aay ad- ada add adf adg ado ady af- afa afd aff afg afo afy ag- aga agd agf agg ago agy aoa aod aof aog aoo ay- aya ayd ayf ayo daa dad daf dag dao day dda ddd ddf ddg ddo ddy dfa dfd dff dfg dfo dga dgd dgf dgg doa dod dof dog doo doy dy- dya dyd dyo dyy faa fad faf fag fao fay fda fdd fdf fdg fdo ffa ffd fff ffg ffo ffy fga fgd fgf fgg foa fof fog foo foy fy- fya fyo g-d gaa gad gaf gag gao gay gda gdd gdf gdo gfa gfd gff gfo gfy gga ggd ggg ggo goa god gof gog goo goy gy- gya gyd gyf gyo oaa oad oaf oag oao oda odd odf odg odo of- ofa ofd off ofg ofo oga ogd ogf ogg ogo ogy oo- ooa ood oof oog ooo oya oyd oyo yaa yad yaf yag yao yay yda ydg ydo ydy yfa yfd yff yga ygo yod yof yog yoo yoy yyf yyg yyy