-er -ey bbb bbe bbg bbn bbr bby be- beb bee beg ben ber bey bgb bge bgg bgn bgr bnb bne bng bnn bnr brb bre brg brn brr bry by- bye byg byn byr ebb ebe ebg ebn ebr eby eeb eee eeg een eer eey egb ege egg egn egr egy en- enb ene eng enn enr eny erb ere erg ern err ery eye eyn eyr gbe gbg gbn gbr gby ge- geb gee geg gen ger gey ggb ggg ggn ggr gnb gne gnn gnr grb gre grg grn grr gry gy- gyb gye gyn gyr nbb nbe nbg nbn nbr ne- neb nee neg nen ner ney ngb nge ngg ngn nnb nne nng nnn nrb nre nrg nrn nrr nry nye nyg nyn nyy rbb rbe rbg rbn rbr re- reb ree reg ren rer rey rgb rge rgg rgn rgr rnb rng rnn rnr rny rrb rrg rrn rrr ry- rye ryg ryn ryr ryy ybe ybg ybr yby yeb yee yeg yen yer yey yne yng ynn yny yre yrg yrn yyb yye yyg yyy