-er a-a a-z aaa aad aae aag aar aaz ad- ada add ade adg adr adz aea aed aee aeg aer aez ag- aga agd age agg agr agz ar- ara ard are arg arr arz az- aza azd aze azg azz daa dad dae dag dar daz dda ddd dde ddg ddr ddz de- dea ded dee deg der dez dga dgd dge dgg dgr dgz dra drd dre drg drr drz dza dzd dze dzr eaa ead eae eag ear eaz ed- eda edd ede edg edr eea eed eee eeg eer ega egd ege egg egr era erd ere erg err erz eze ezr ezz g-d gaa gad gae gag gar gaz gda gdd gde gdr ge- gea ged gee geg ger gez gga ggd ggg ggr ggz gra grd gre grg grr gza gzr ra- raa rad rae rag rar raz rda rdd rde rdg rdr re- rea red ree reg rer rez rga rgd rge rgg rgr rra rrd rrg rrr rza rze z-g zaa zad zag zar zaz zea zed zee zer zez zgg zzr zzz