-er b-u bbb bbe bbg bbk bbl bbn bbr bbs bbt bbu be- beb bee beg bek bel ben ber bes bet beu bgb bge bgg bgk bgl bgn bgr bgs bgt bgu bkb bke bkg bkk bkl bkn bkr bks bkt blb ble blg blk bll bln blr bls blt blu bnb bne bng bnk bnl bnn bnr bns bnt bnu brb bre brg brk brl brn brr brs brt bru bsb bse bsg bsk bsl bsn bsr bss bst bsu btb bte btg btk btl btn btr bts btt btu bub bue bug buk bul bun bur bus but buu ebb ebe ebg ebk ebl ebn ebr ebs ebt ebu eeb eee eeg eek eel een eer ees eet egb ege egg egl egn egr egs egt egu ekb eke ekg ekl ekr eks ekt eku elb ele elg elk ell eln elr els elt elu en- enb ene eng enk enl enn enr ens ent enu erb ere erg erk erl ern err ers ert eru es- esb ese esg esk esl esn esr ess est esu etb ete etg etk etl etn etr ets ett etu eu- eub eue eug eul eun eur eus eut gbe gbg gbk gbl gbn gbr gbs gbt gbu ge- geb gee geg gek gel gen ger ges get geu ggb ggg ggn ggr ggs ggt ggu gkb gkn gks gkt glb gle glg glk gll gln glr gls glt glu gnb gne gnl gnn gnr gns gnt gnu grb gre grg grk grl grn grr grs grt gru gsb gse gsg gsk gsl gsn gsr gss gst gsu gtb gte gtg gtk gtl gtn gtr gts gtt gtu gu- gub gue gug guk gul gun gur gus gut guu k-t kbb kbe kbk kbl kbn kbr kbs kbu ke- keb kee keg kek kel ken ker kes ket kgb kgl kgs kgu kkb kke kkk kkl kkn kkr kks kkt kku kl- klb klg klr kls klt klu kn- kne kng knk knl knn knr knt knu krg krk krl krn krr krs krt kru ksb kse ksg ksk ksl ksn ksr kss kst ksu ktb kte ktg ktk ktl ktn ktr kts ktt ktu kub kue kug kuk kul kun kur kus kut kuu lbb lbe lbg lbk lbl lbr lbs lbt lbu leb lee leg lek lel len ler les let leu lgb lge lgg lgk lgl lgn lgr lgs lgt lgu lkb lkg lkl lkr lks lkt llb lle llg llk lll lln llr lls llt llu lnb lne lng lnk lnl lnn lnr lns lnt lnu lrb lrg lrk lrn lrr lrs lrt lru lsb lse lsg lsk lsl lsn lsr lss lst lsu ltb lte ltg ltk ltl ltr lts ltt ltu lub lue lug luk lul lun lur lus lut luu nbb nbe nbg nbk nbl nbn nbr nbs nbt nbu ne- neb nee neg nek nel nen ner nes net neu ngb nge ngg ngk ngl ngn ngs ngt ngu nke nkk nkn nkr nks nkt nku nlb nle nlg nlk nll nln nlr nls nlt nlu nnb nne nng nnk nnl nnn nns nnt nnu nrb nre nrg nrk nrl nrn nrr nrs nrt nru nsb nse nsg nsk nsl nsn nsr nss nst nsu ntb nte ntg ntk ntn ntr nts ntt ntu nub nue nug nuk nul nun nur nus nut nuu rbb rbe rbg rbk rbl rbn rbr rbs rbt rbu re- reb ree reg rek rel ren rer res ret reu rgb rge rgg rgk rgn rgr rgs rgt rkb rke rkg rkk rks rkt rku rle rlg rll rln rlr rls rlt rlu rnb rng rnn rnr rns rnt rnu rrb rrg rrk rrl rrn rrr rrs rrt rru rsb rse rsg rsk rsl rsn rsr rss rst rsu rtb rte rtg rtk rtl rtn rtr rts rtt rtu rub rue rug ruk run rur rus rut ruu sbb sbe sbg sbk sbl sbn sbr sbs sbt sbu se- seb see seg sek sel sen ser ses set seu sgb sge sgg sgk sgl sgn sgr sgs sgt sgu sk- skb ske skg skk skl skr sks skt sku slb sle slg slk sll sln slr sls slt slu snb sne sng snk snl snn snr sns snt snu sr- srb sre srg srk srl srn srr srs srt ss- ssb sse ssg ssk ssl ssn ssr sss sst ssu stb ste stg stk stl stn str sts stt stu sub sue sug suk sul sun sur sus sut suu tbb tbe tbg tbk tbl tbn tbr tbs tbt tbu te- teb tee teg tek tel ten ter tes tet teu tgb tge tgg tgk tgl tgn tgr tgs tgt tgu tkb tke tkg tkk tkl tkr tks tkt tle tlg tlk tll tln tlr tls tlt tlu tnb tne tng tnk tnl tnn tnr tns tnt trb tre trg trk trl trn trr trs trt tru tsb tse tsg tsk tsl tsn tsr tss tst tsu ttb tte ttg ttk ttl ttn ttr tts ttt ttu tub tue tug tuk tul tun tur tus tut tuu ubb ube ubg ubk ubl ubn ubr ubs ubt ubu ueb uee ueg uel uen uer ues uet ugb uge ugg ugk ugl ugn ugr ugs ugt ugu ukb uke ukk ukl ukn ukr uku ulb ule ulg ulk ull uln ulr uls ult ulu un- unb une ung unk unl unn unr uns unt unu ur- urb ure urg urk url urn urr urs urt uru usb use usg usk usl usn usr uss ust usu utb ute utk utl utn utr uts utt utu uue uug uun uur uus uut uuu