-er -ey bbb bbe bbg bbn bbr bbs bby be- beb bee beg ben ber bes bey bgb bge bgg bgn bgr bgs bnb bne bng bnn bnr bns brb bre brg brn brr brs bry bsb bse bsg bsn bsr bss bsy by- bye byg byn byr bys ebb ebe ebg ebn ebr ebs eby eeb eee eeg een eer ees eey egb ege egg egn egr egs egy en- enb ene eng enn enr ens eny erb ere erg ern err ers ery es- esb ese esg esn esr ess esy eye eyn eyr eys gbe gbg gbn gbr gbs gby ge- geb gee geg gen ger ges gey ggb ggg ggn ggr ggs gnb gne gnn gnr gns grb gre grg grn grr grs gry gsb gse gsg gsn gsr gss gy- gyb gye gyn gyr gys nbb nbe nbg nbn nbr nbs ne- neb nee neg nen ner nes ney ngb nge ngg ngn ngs nnb nne nng nnn nns nrb nre nrg nrn nrr nrs nry nsb nse nsg nsn nsr nss nsy nye nyg nyn nys nyy rbb rbe rbg rbn rbr rbs re- reb ree reg ren rer res rey rgb rge rgg rgn rgr rgs rnb rng rnn rnr rns rny rrb rrg rrn rrr rrs rsb rse rsg rsn rsr rss ry- rye ryg ryn ryr rys ryy sbb sbe sbg sbn sbr sbs sby se- seb see seg sen ser ses sey sgb sge sgg sgn sgr sgs snb sne sng snn snr sns sny sr- srb sre srg srn srr srs sry ss- ssb sse ssg ssn ssr sss sy- syb sye syg syn syr sys ybe ybg ybr ybs yby yeb yee yeg yen yer yes yey yne yng ynn yns yny yre yrg yrn yrs ysb yse ysg ysr yss ysy yyb yye yyg yys yyy