-er bbb bbe bbg bbl bbn bbr bbs bbt be- beb bee beg bel ben ber bes bet bez bgb bge bgg bgl bgn bgr bgs bgt bgz blb ble blg bll bln blr bls blt blz bnb bne bng bnl bnn bnr bns bnt bnz brb bre brg brl brn brr brs brt brz bsb bse bsg bsl bsn bsr bss bst btb bte btg btl btn btr bts btt btz bze bzn bzr bzs bzz ebb ebe ebg ebl ebn ebr ebs ebt eeb eee eeg eel een eer ees eet egb ege egg egl egn egr egs egt elb ele elg ell eln elr els elt elz en- enb ene eng enl enn enr ens ent enz erb ere erg erl ern err ers ert erz es- esb ese esg esl esn esr ess est etb ete etg etl etn etr ets ett etz eze ezr ezs ezz gbe gbg gbl gbn gbr gbs gbt gbz ge- geb gee geg gel gen ger ges get gez ggb ggg ggn ggr ggs ggt ggz glb gle glg gll gln glr gls glt glz gnb gne gnl gnn gnr gns gnt grb gre grg grl grn grr grs grt gsb gse gsg gsl gsn gsr gss gst gtb gte gtg gtl gtn gtr gts gtt gzr lbb lbe lbg lbl lbr lbs lbt leb lee leg lel len ler les let lez lgb lge lgg lgl lgn lgr lgs lgt llb lle llg lll lln llr lls llt llz lnb lne lng lnl lnn lnr lns lnt lrb lrg lrn lrr lrs lrt lrz lsb lse lsg lsl lsn lsr lss lst lsz ltb lte ltg ltl ltr lts ltt ltz lzr lzs nbb nbe nbg nbl nbn nbr nbs nbt ne- neb nee neg nel nen ner nes net nez ngb nge ngg ngl ngn ngs ngt nlb nle nlg nll nln nlr nls nlt nlz nnb nne nng nnl nnn nns nnt nnz nrb nre nrg nrl nrn nrr nrs nrt nrz nsb nse nsg nsl nsn nsr nss nst nsz ntb nte ntg ntn ntr nts ntt ntz nzb nze nzg nzs nzz rbb rbe rbg rbl rbn rbr rbs rbt re- reb ree reg rel ren rer res ret rez rgb rge rgg rgn rgr rgs rgt rle rlg rll rln rlr rls rlt rnb rng rnn rnr rns rnt rnz rrb rrg rrl rrn rrr rrs rrt rsb rse rsg rsl rsn rsr rss rst rtb rte rtg rtl rtn rtr rts rtt rtz rzb rze sbb sbe sbg sbl sbn sbr sbs sbt se- seb see seg sel sen ser ses set sez sgb sge sgg sgl sgn sgr sgs sgt slb sle slg sll sln slr sls slt snb sne sng snl snn snr sns snt sr- srb sre srg srl srn srr srs srt ss- ssb sse ssg ssl ssn ssr sss sst ssz stb ste stg stl stn str sts stt stz sze szl szr tbb tbe tbg tbl tbn tbr tbs tbt tbz te- teb tee teg tel ten ter tes tet tez tgb tge tgg tgl tgn tgr tgs tgt tgz tle tlg tll tln tlr tls tlt tlz tnb tne tng tnl tnn tnr tns tnt tnz trb tre trg trl trn trr trs trt trz tsb tse tsg tsl tsn tsr tss tst ttb tte ttg ttl ttn ttr tts ttt tze tzs z-g zbb zbl zbr zbs zbt zeb zee zel zen zer zes zet zez zgb zgg zgs zlr zlt zne znn zns zrl zrs zse zsg zsl zst zsz zte ztl ztr zzr zzs zzt zzz