-er -ey bbb bbe bbg bbn bbr bbt bby be- beb bee beg ben ber bet bey bgb bge bgg bgn bgr bgt bnb bne bng bnn bnr bnt brb bre brg brn brr brt bry btb bte btg btn btr btt bty by- bye byg byn byr byt ebb ebe ebg ebn ebr ebt eby eeb eee eeg een eer eet eey egb ege egg egn egr egt egy en- enb ene eng enn enr ent eny erb ere erg ern err ert ery etb ete etg etn etr ett ety eye eyn eyr eyt gbe gbg gbn gbr gbt gby ge- geb gee geg gen ger get gey ggb ggg ggn ggr ggt gnb gne gnn gnr gnt grb gre grg grn grr grt gry gtb gte gtg gtn gtr gtt gty gy- gyb gye gyn gyr nbb nbe nbg nbn nbr nbt ne- neb nee neg nen ner net ney ngb nge ngg ngn ngt nnb nne nng nnn nnt nrb nre nrg nrn nrr nrt nry ntb nte ntg ntn ntr ntt nye nyg nyn nyt nyy rbb rbe rbg rbn rbr rbt re- reb ree reg ren rer ret rey rgb rge rgg rgn rgr rgt rnb rng rnn rnr rnt rny rrb rrg rrn rrr rrt rtb rte rtg rtn rtr rtt rty ry- rye ryg ryn ryr ryy tbb tbe tbg tbn tbr tbt te- teb tee teg ten ter tet tey tgb tge tgg tgn tgr tgt tgy tnb tne tng tnn tnr tnt trb tre trg trn trr trt try ttb tte ttg ttn ttr ttt tty tye tyg tyn tyr tyt ybe ybg ybr yby yeb yee yeg yen yer yet yey yne yng ynn yny yre yrg yrn yrt yte ytn ytr ytt yyb yye yyg yyt yyy