-er bbb bbd bbe bbf bbi bbk bbl bbr bbs bdb bdd bde bdf bdi bdk bdl bdr bds be- beb bed bee bef bei bek bel ber bes bfb bfd bfe bff bfi bfl bfr bfs bi- bib bid bie bif bii bik bil bir bis bkb bke bkf bkk bkl bkr bks blb bld ble blf bli blk bll blr bls brb brd bre brf bri brk brl brr brs bsb bsd bse bsf bsi bsk bsl bsr bss dbb dbd dbe dbf dbi dbk dbl dbr dbs ddb ddd dde ddf ddi ddk ddl ddr dds de- deb ded dee def dei dek del der des dfb dfd dfe dff dfi dfk dfl dfr dfs di- dib did die dif dii dik dil dir dis dkb dke dki dkk dkl dkr dks dl- dlb dld dle dlf dli dlk dll dlr dls drb drd dre dri drk drl drr drs dsb dsd dse dsf dsi dsk dsl dsr dss ebb ebd ebe ebf ebi ebk ebl ebr ebs ed- edb edd ede edf edi edk edl edr eds eeb eed eee eef eek eel eer ees ef- efb efd efe eff efi efl efr efs eib eid eie eif eii eik eil eir eis ekb ekd eke ekf eki ekl ekr eks elb eld ele elf eli elk ell elr els erb erd ere erf eri erk erl err ers es- esb esd ese esf esi esk esl esr ess fbb fbd fbe fbf fbi fbk fbl fbr fbs fdb fdd fde fdf fdi fdk fdl fdr fds feb fed fee fef fei fek fel fer fes ffd ffe fff ffi ffk ffl ffr ffs fib fid fie fif fii fik fil fir fis fkb fkf fki fkk fkl flb fld fle flf fli fll flr fls frb frd fre frf fri frk frl frr frs fsb fsd fse fsf fsi fsk fsl fsr fss i-d i-f ibb ibd ibe ibf ibi ibk ibl ibr ibs idb idd ide idf idi idk idl idr ids ie- ied iee ief iei iek iel ier ies ifb ifd ife iff ifi ifl ifr ifs iib iid iie iif iii iil iir iis ikb ike ikf iki ikk ikl ikr iks il- ilb ild ile ilf ili ilk ill ilr ils ir- irb ird ire irf iri irk irl irr irs is- isb isd ise isf isi isk isl isr iss kbb kbd kbe kbf kbi kbk kbl kbr kbs kdb kde kdf kdk kdl kdr kds ke- keb ked kee kef kei kek kel ker kes kfd kff kfi kfs kib kid kie kif kii kik kil kir kis kkb kke kki kkk kkl kkr kks kl- klb kld klf kli klr kls krd krf kri krk krl krr krs ksb ksd kse ksf ksi ksk ksl ksr kss lbb lbd lbe lbf lbi lbk lbl lbr lbs ldb ldd lde ldf ldi ldk ldl ldr lds leb led lee lef lei lek lel ler les lfb lfd lfe lff lfi lfk lfl lfr lfs lib lid lie lif lii lik lil lir lis lkb lkl lkr lks llb lld lle llf lli llk lll llr lls lrb lrd lrf lri lrk lrr lrs lsb lsd lse lsf lsi lsk lsl lsr lss rbb rbd rbe rbf rbi rbk rbl rbr rbs rdb rdd rde rdf rdi rdl rdr rds re- reb red ree ref rei rek rel rer res rfb rfd rfe rff rfi rfk rfl rfr rfs rib rid rie rif rii rik ril rir ris rkb rke rkf rkk rks rld rle rlf rli rll rlr rls rrb rrd rrf rri rrk rrl rrr rrs rsb rsd rse rsf rsi rsk rsl rsr rss sbb sbd sbe sbf sbi sbk sbl sbr sbs sdb sdd sde sdf sdi sdk sdl sdr sds se- seb sed see sef sei sek sel ser ses sfb sfd sfe sff sfi sfk sfl sfr sfs sib sid sie sif sii sik sil sir sis sk- skb skd ske skf ski skk skl skr sks slb sld sle slf sli slk sll slr sls sr- srb srd sre srf sri srk srl srr srs ss- ssb ssd sse ssf ssi ssk ssl ssr sss

bbbb bbbs bbdd bbeb bblb bbls bd-r bdes bdii bdle bdls bdsd bebb bebe bebi bede bedi bedl beds beeb beed beef beek beel beer bees befe beff beik beil beir beis beke beki beks beld bele beli belk bell bels berd bere beri berk berr bers bes- bese besk bess bffl bffs bfsi bfsr bibb bibe bibi bibl bibs bide bidi bidr bids bieb bied bief biel bier bies biff bifi biis bike bild bile bili bilk bill bils birb bird bire biri birk birl birr birs bis- bisd bise bisk bisl biss bldr bleb bled blee blei blek bles blik blir blis blkb blkd blls blss brds breb bred bree bref brei brek brel brer bres brid brie brik bril bris brkb brls brrr brrs brsb brsr bsbd bsdl bseb bsed bsee bser bses bsff bsfs bsrd bssd bsse dbfs dbls dbrs dbss dddd ddes ddie ddre ddss debe debi debs dedd dede dedi deeb deed deef deek deel deer dees defe deff defi defs deid deie deif deil deir deis dek- deke deks deld dele delf deli delk dell dels der- derb dere derf deri derk derr ders des- dese desi desk dess dfds dfer dfrf dfri dibb dibe dibs dide didi dids dieb died dief diel dier dies dif- diff difs diii diis dike diki dile dilf dili dilk dill dils dird dire dirk dirl dirr dirs dis- disd dise disi disk diss dkid dlbd dlib dlii dlil dlis dlrs dred dree dref drei drek drel dres drib drie drif dril drrs dsdr dsei dsif dsls dsri dsrr dssi ebbr ebbs ebed ebel eber ebes ebid ebis ebli edde eddi edds ede- edei edel eder edes edfl edie edif edik edil edis edle edss eede eeee eees eefe eefl eeke eeks eele eels