-er a-a aaa aad aae aag aar aas aax ad- ada add ade adg adr ads adx aea aed aee aeg aer aes aex ag- aga agd age agg agr ags agx ar- ara ard are arg arr ars arx as- asa asd ase asg asr ass asx ax- axa axe axr axs axx daa dad dae dag dar das dax dda ddd dde ddg ddr dds ddx de- dea ded dee deg der des dex dga dgd dge dgg dgr dgs dra drd dre drg drr drs drx dsa dsd dse dsg dsr dss dsx dxd dxr dxs dxx eaa ead eae eag ear eas eax ed- eda edd ede edg edr eds edx eea eed eee eeg eer ees eex ega egd ege egg egr egs egx era erd ere erg err ers es- esa esd ese esg esr ess esx ex- exa exd exe exr exs exx g-d gaa gad gae gag gar gas gda gdd gde gdr gds gdx ge- gea ged gee geg ger ges gex gga ggd ggg ggr ggs gra grd gre grg grr grs grx gsa gsd gse gsg gsr gss gsx gxa gxs ra- raa rad rae rag rar ras rax rda rdd rde rdg rdr rds rdx re- rea red ree reg rer res rex rga rgd rge rgg rgr rgs rgx rra rrd rrg rrr rrs rsa rsd rse rsg rsr rss rsx rxr rxs saa sad sae sag sar sas sax sda sdd sde sdg sdr sds se- sea sed see seg ser ses sex sga sgd sge sgg sgr sgs sgx sr- sra srd sre srg srr srs srx ss- ssa ssd sse ssg ssr sss ssx sxs xaa xad xag xar xas xda xde xdr xds xed xee xeg xer xes xex xge xrd xrx xsa xss xxx