-er b-u bbb bbc bbe bbg bbk bbl bbn bbr bbs bbt bbu bcb bcc bce bcg bck bcl bcn bcr bcs bct bcu be- beb bec bee beg bek bel ben ber bes bet beu bgb bgc bge bgg bgk bgl bgn bgr bgs bgt bgu bkb bkc bke bkg bkk bkl bkn bkr bks bkt blb blc ble blg blk bll bln blr bls blt blu bnb bnc bne bng bnk bnl bnn bnr bns bnt bnu brb bre brg brk brl brn brr brs brt bru bsb bsc bse bsg bsk bsl bsn bsr bss bst bsu btb btc bte btg btk btl btn btr bts btt btu bub buc bue bug buk bul bun bur bus but buu c-- cbb cbc cbe cbg cbk cbl cbn cbr cbs cbt cbu ccb ccc cce ccg cck ccl ccn ccr ccs cct ccu ce- ceb cec cee ceg cek cel cen cer ces cet ceu cgb cgc cge cgg cgl cgn cgr cgs cgt cgu ckb ckc cks ckt cl- clb clc cle clg clk cll cln clr cls clt clu cn- cnb cnc cne cng cnl cnn cnr cns cnt cnu crb crc cre crg crk crl crn crr crs crt cru csb csc cse csg csk csl csn csr css cst csu ctb ctc cte ctg ctk ctl ctn ctr cts ctt ctu cub cuc cue cug cuk cul cun cur cus cut cuu ebb ebc ebe ebg ebk ebl ebn ebr ebs ebt ebu ec- ecb ecc ece ecg eck ecl ecn ecr ecs ect ecu eeb eec eee eeg eek eel een eer ees eet egb egc ege egg egl egn egr egs egt egu ekb ekc eke ekg ekl ekr eks ekt eku elb elc ele elg elk ell eln elr els elt elu en- enb enc ene eng enk enl enn enr ens ent enu erb erc ere erg erk erl ern err ers ert eru es- esb esc ese esg esk esl esn esr ess est esu etb etc ete etg etk etl etn etr ets ett etu eu- eub euc eue eug eul eun eur eus eut gbc gbe gbg gbk gbl gbn gbr gbs gbt gbu gcb gcc gce gcg gck gcl gcn gcr gcs gct gcu ge- geb gec gee geg gek gel gen ger ges get geu ggb ggc ggg ggn ggr ggs ggt ggu gkb gkn gks gkt glb glc gle glg glk gll gln glr gls glt glu gnb gnc gne gnl gnn gnr gns gnt gnu grb grc gre grg grk grl grn grr grs grt gru gsb gsc gse gsg gsk gsl gsn gsr gss gst gsu gtb gtc gte gtg gtk gtl gtn gtr gts gtt gtu gu- gub guc gue gug guk gul gun gur gus gut guu k-t kbb kbc kbe kbk kbl kbn kbr kbs kbu kcb kcc kce kcg kck kcl kcn kcr kcs kct kcu ke- keb kec kee keg kek kel ken ker kes ket kgb kgc kgl kgs kgu kkb kkc kke kkk kkl kkn kkr kks kkt kku kl- klb klc klg klr kls klt klu kn- knc kne kng knk knl knn knr knt knu krc krg krk krl krn krr krs krt kru ksb ksc kse ksg ksk ksl ksn ksr kss kst ksu ktb ktc kte ktg ktk ktl ktn ktr kts ktt ktu kub kuc kue kug kuk kul kun kur kus kut kuu lbb lbc lbe lbg lbk lbl lbr lbs lbt lbu lcb lcc lce lcg lck lcl lcn lcr lcs lct lcu leb lec lee leg lek lel len ler les let leu lgb lgc lge lgg lgk lgl lgn lgr lgs lgt lgu lkb lkg lkl lkr lks lkt llb llc lle llg llk lll lln llr lls llt llu lnb lnc lne lng lnk lnl lnn lnr lns lnt lnu lrb lrc lrg lrk lrn lrr lrs lrt lru lsb lsc lse lsg lsk lsl lsn lsr lss lst lsu ltb ltc lte ltg ltk ltl ltr lts ltt ltu lub luc lue lug luk lul lun lur lus lut luu nbb nbc nbe nbg nbk nbl nbn nbr nbs nbt nbu ncb ncc nce ncg nck ncl ncn ncr ncs nct ncu ne- neb nec nee neg nek nel nen ner nes net neu ngb ngc nge ngg ngk ngl ngn ngs ngt ngu nkc nke nkk nkn nkr nks nkt nku nlb nlc nle nlg nlk nll nln nlr nls nlt nlu nnb nnc nne nng nnk nnl nnn nns nnt nnu nrb nrc nre nrg nrk nrl nrn nrr nrs nrt nru nsb nsc nse nsg nsk nsl nsn nsr nss nst nsu ntb ntc nte ntg ntk ntn ntr nts ntt ntu nub nuc nue nug nuk nul nun nur nus nut nuu rbb rbc rbe rbg rbk rbl rbn rbr rbs rbt rbu rcb rcc rce rcg rcl rcn rcr rcs rct rcu re- reb rec ree reg rek rel ren rer res ret reu rgb rgc rge rgg rgk rgn rgr rgs rgt rkb rkc rke rkg rkk rks rkt rku rlc rle rlg rll rln rlr rls rlt rlu rnb rnc rng rnn rnr rns rnt rnu rrb rrc rrg rrk rrl rrn rrr rrs rrt rru rsb rsc rse rsg rsk rsl rsn rsr rss rst rsu rtb rtc rte rtg rtk rtl rtn rtr rts rtt rtu rub ruc rue rug ruk run rur rus rut ruu sbb sbc sbe sbg sbk sbl sbn sbr sbs sbt sbu scb scc sce scg sck scl scn scr scs sct scu se- seb sec see seg sek sel sen ser ses set seu sgb sgc sge sgg sgk sgl sgn sgr sgs sgt sgu sk- skb skc ske skg skk skl skr sks skt sku slb slc sle slg slk sll sln slr sls slt slu snb snc sne sng snk snl snn snr sns snt snu sr- srb src sre srg srk srl srn srr srs srt