-er bbb bbe bbg bbl bbn bbr bbs be- beb bee beg bel ben ber bes bez bgb bge bgg bgl bgn bgr bgs bgz blb ble blg bll bln blr bls blz bnb bne bng bnl bnn bnr bns bnz brb bre brg brl brn brr brs brz bsb bse bsg bsl bsn bsr bss bze bzn bzr bzs bzz ebb ebe ebg ebl ebn ebr ebs eeb eee eeg eel een eer ees egb ege egg egl egn egr egs elb ele elg ell eln elr els elz en- enb ene eng enl enn enr ens enz erb ere erg erl ern err ers erz es- esb ese esg esl esn esr ess eze ezr ezs ezz gbe gbg gbl gbn gbr gbs gbz ge- geb gee geg gel gen ger ges gez ggb ggg ggn ggr ggs ggz glb gle glg gll gln glr gls glz gnb gne gnl gnn gnr gns grb gre grg grl grn grr grs gsb gse gsg gsl gsn gsr gss gzr lbb lbe lbg lbl lbr lbs leb lee leg lel len ler les lez lgb lge lgg lgl lgn lgr lgs llb lle llg lll lln llr lls llz lnb lne lng lnl lnn lnr lns lrb lrg lrn lrr lrs lrz lsb lse lsg lsl lsn lsr lss lsz lzr lzs nbb nbe nbg nbl nbn nbr nbs ne- neb nee neg nel nen ner nes nez ngb nge ngg ngl ngn ngs nlb nle nlg nll nln nlr nls nlz nnb nne nng nnl nnn nns nnz nrb nre nrg nrl nrn nrr nrs nrz nsb nse nsg nsl nsn nsr nss nsz nzb nze nzg nzs nzz rbb rbe rbg rbl rbn rbr rbs re- reb ree reg rel ren rer res rez rgb rge rgg rgn rgr rgs rle rlg rll rln rlr rls rnb rng rnn rnr rns rnz rrb rrg rrl rrn rrr rrs rsb rse rsg rsl rsn rsr rss rzb rze sbb sbe sbg sbl sbn sbr sbs se- seb see seg sel sen ser ses sez sgb sge sgg sgl sgn sgr sgs slb sle slg sll sln slr sls snb sne sng snl snn snr sns sr- srb sre srg srl srn srr srs ss- ssb sse ssg ssl ssn ssr sss ssz sze szl szr z-g zbb zbl zbr zbs zeb zee zel zen zer zes zez zgb zgg zgs zlr zne znn zns zrl zrs zse zsg zsl zsz zzr zzs zzz