a-a a-i aaa aad aaf aag aai ad- ada add adf adg adi af- afa afd aff afg afi ag- aga agd agf agg agi ai- aia aid aif aig aii daa dad daf dag dai dda ddd ddf ddg ddi dfa dfd dff dfg dfi dga dgd dgf dgg dgi di- dia did dif dig dii faa fad faf fag fai fda fdd fdf fdg fdi ffa ffd fff ffg ffi fga fgd fgf fgg fgi fia fid fif fig fii g-d gaa gad gaf gag gai gda gdd gdf gdi gfa gfd gff gfi gga ggd ggg ggi gia gid gif gig gii i-d i-f ia- iaa iad iaf iag iai ida idd idf idg idi ifa ifd iff ifg ifi iga igd igf igg igi iia iid iif iii