-er -ey eee eeg een eer eex eey ege egg egn egr egx egy en- ene eng enn enr eny ere erg ern err ery ex- exe exr exx exy eye eyn eyr ge- gee geg gen ger gex gey ggg ggn ggr gne gnn gnr gre grg grn grr grx gry gy- gye gyn gyr ne- nee neg nen ner nex ney nge ngg ngn nne nng nnn nre nrg nrn nrr nrx nry nye nyg nyn nyx nyy re- ree reg ren rer rex rey rge rgg rgn rgr rgx rng rnn rnr rny rrg rrn rrr rxr ry- rye ryg ryn ryr ryy xee xeg xen xer xex xge xrx xry xxx xxy xyr xyy yee yeg yen yer yex yey yne yng ynn yny yre yrg yrn yxe yxy yye yyg yyy