a-a aaa aad aaf aag aap aar ad- ada add adf adg adp adr af- afa afd aff afg afp afr ag- aga agd agf agg agp agr ap- apa apd apf apg app apr ar- ara ard arf arg arp arr daa dad daf dag dap dar dda ddd ddf ddg ddp ddr dfa dfd dff dfg dfp dfr dga dgd dgf dgg dgp dgr dpa dpd dpf dpg dpp dpr dra drd drg drp drr faa fad faf fag fap far fda fdd fdf fdg fdp fdr ffa ffd fff ffg ffp ffr fga fgd fgf fgg fgp fgr fpa fpd fpg fpp fpr fra frd frf frg frp frr g-d g-p gaa gad gaf gag gap gar gda gdd gdf gdp gdr gfa gfd gff gfp gfr gga ggd ggg ggp ggr gpa gpd gpf gpg gpp gpr gra grd grf grg grp grr p-p paa pad paf pag pap par pda pdd pdf pdg pdp pdr pfa pfd pff pfg pfp pfr pga pgd pgf pgg pgp pgr ppa ppd ppf ppg ppp ppr pra prd prf prg prp prr ra- raa rad raf rag rap rar rda rdd rdf rdg rdp rdr rfa rfd rff rfg rfp rfr rga rgd rgf rgg rgp rgr rpa rpd rpf rpg rpp rpr rra rrd rrf rrg rrp rrr