-er b-u bbb bbe bbg bbn bbr bbt bbu be- beb bee beg ben ber bet beu bgb bge bgg bgn bgr bgt bgu bnb bne bng bnn bnr bnt bnu brb bre brg brn brr brt bru btb bte btg btn btr btt btu bub bue bug bun bur but buu ebb ebe ebg ebn ebr ebt ebu eeb eee eeg een eer eet egb ege egg egn egr egt egu en- enb ene eng enn enr ent enu erb ere erg ern err ert eru etb ete etg etn etr ett etu eu- eub eue eug eun eur eut gbe gbg gbn gbr gbt gbu ge- geb gee geg gen ger get geu ggb ggg ggn ggr ggt ggu gnb gne gnn gnr gnt gnu grb gre grg grn grr grt gru gtb gte gtg gtn gtr gtt gtu gu- gub gue gug gun gur gut guu nbb nbe nbg nbn nbr nbt nbu ne- neb nee neg nen ner net neu ngb nge ngg ngn ngt ngu nnb nne nng nnn nnt nnu nrb nre nrg nrn nrr nrt nru ntb nte ntg ntn ntr ntt ntu nub nue nug nun nur nut nuu rbb rbe rbg rbn rbr rbt rbu re- reb ree reg ren rer ret reu rgb rge rgg rgn rgr rgt rnb rng rnn rnr rnt rnu rrb rrg rrn rrr rrt rru rtb rte rtg rtn rtr rtt rtu rub rue rug run rur rut ruu tbb tbe tbg tbn tbr tbt tbu te- teb tee teg ten ter tet teu tgb tge tgg tgn tgr tgt tgu tnb tne tng tnn tnr tnt trb tre trg trn trr trt tru ttb tte ttg ttn ttr ttt ttu tub tue tug tun tur tut tuu ubb ube ubg ubn ubr ubt ubu ueb uee ueg uen uer uet ugb uge ugg ugn ugr ugt ugu un- unb une ung unn unr unt unu ur- urb ure urg urn urr urt uru utb ute utn utr utt utu uue uug uun uur uut uuu

-ene bbbb bbeb bbet bbng bbrg bebb bebe beeb beeg been beer beet begg begu bene beng benn bent benu bere berg bern berr bert beru bete bett betu beur bgun bneg bner bnet bnrr breb bree breg bren brer bret brrr brue brug brun brut bten btrt bttb bubb bube bubu buen buer bueu buge bugg bunb bune bung bunn bunt bunu bur- burb bure burg burn burr burt buru but- bute butt ebbr eben eber ebru ebur eeee eeng eent eerg eete eetu egbe egbu egee eger eggb egge egne egnt egre egte enb- enbn enbr enee eneg ener enge engg engr enne ennu ent- ente entr enue enur enut erbb erbe ereb eren erer eret erg- ergg erne erre ertu erub erur etbr etee eten eter etne etnr etre ette ettn ettu etun euer euge eur- eure eurt gebe geen geer geet gege gegg gen- gene geng genn gent genu gerb gere gern gert geru getb gete getg gett geue geun ggbt gggg ggrn gnet gneu gnrr grbr greb gree greg gren gret greu grrr grub grue grug grun grur grut gtbr gubb gubu guen guer gugb guge gugg gugu gung gunn gunt gurb gure gurg gurn gurr gurt guru gute gutt gutu nber nebb nebe nebn nebr nebu neeb neen neer neet nege nene neng nent nenu nere nerr nert neru net- netb nete nett neue neun neur neut neuu ngen nger ngtn ngur nguu nngn nnnn nntn nren nter nteu ntnu ntru nttr nube nuee nuer nune nung nunn nunt nure nurn nurr nurt nuru nute nutt nutu rbbb rbbr rebb rebe rebu reeb reen reet rege regn regr regt regu rene reng renn rent renu rere rerg rert reru rete retr rett reue reut reuu rgbe rgtr rnbr rnnt rnut rrrr rrun rtee rubb rube rubu ruen ruer ruet ruge rugg rune rung runn runt rure ruru rute rutt rutu ruun tbrb tebu teen teer teet tegg tegt tegu tenb tene teng tenn tent tenu ter- tere tern terr teru tete tetr tett tetu teut tneb tnge tnut tre- tree treg tren tret treu trge trng trte trtr trub true trug trun trut truu ttbb tten tter tttt tubb tube tubr tubu tuen tuer tuet tugg tugu tunb tune tung tunn tunu turb ture turg turn turr turt turu tute tutt tutu ubbe uber ubet uggt ugne ugur uguu unbe uneb unee unen uner ungu unne untb unte unut urbe ure- uret urge urgu urne urre urte urun urur urut uter utne uttu utug uuen uuuu

-tree bbbee bbgun be-er beber beebe beene beete beeut begee beget begge begue begun begur begut bene- benet benge bengu benne bennu benue benun benur benut berbe bereg beren beret berge berne bernt berre berru berte berun betee beten beter betne betre bett- bette beuer beure beute brebu breen breer breet breg- brege bregg brene breng brenn brent brere brett breu- brrrr bruen bruer bruet bruge brugg brune brung brunn brunt brute bruun btr-t bubbe buben buber bugen buger bugge bugre bugun bunge bungu bunne bunte bunun bunut buren buret burge burgu burn- burne burnt burru burte burtt burun burut buten buter butte butut e-ten ebber ebbet ebene eberg ebern ebert ebner ebure eeeee eener eenet eeten egene eggen egger eggng egner egret enbun enent enete engen enger ennet enrge enrut enten enter entre enugu enure enurn erbbe erben erber ereen erege erere ergen ergun ernen ernet errtu erte erter ertug ertun etern etete etnre etree etrun etten etter etung eturu eugen eunet eurre gberg gberu geben geber gebet gebre gebur geere geert geete gegge genbu gener genet genge genre gente gentu gerbe geren gerre gertt getee geten geter gette grebe green greer greet grege gregg grene greng grenn grent grete grett greut grgen grgur grrrr grubb grube grune grunt grure gruut gtube gubbe guben guber gubru guene guere guern gugen guner gunge gungu gunne gunnr gunte guren gurge gurne gurre gurun gurur guten gutte neber nebet