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bbbb bbeb bbet bblb bbrg bebb bebe beeb beeg beel beer beet begg begu bele belg bell belt belu bere berg berr bert beru bete bett betu beur blbt bleb blee bleg blet bleu blrg blub blue blur blut breb bree breg brel brer bret brrr brue brug brut btrt bttb bubb bube bubu buel buer bueu buge bugg bulb bule bulg bull bult bulu bur- burb bure burg burl burr burt buru but- bute butt ebbr ebel eber ebru ebul ebur eeee eele eerg eete eetu egbe egbu egee egel eger eggb egge egle eglu egre egte el-b elbe elbu elee eler elet elgg elle ellu elte elue elul erbb erbe ereb erel erer eret erg- ergg erle erll erre ertl ertu erub erur etbr etee etel eter etre ette ettu euer euge eule eur- eure eurt gebe geel geer geet gege gegg gegl gelb gele gelg gell gelt gelu gerb gere gerl gert geru getb gete getg gett geue geul ggbt gggg gleb glee gleg glet gleu glge glrb glub glue glug glur glut grbr greb gree greg gret greu grrl grrr grub grue grug grur grut gtbr gubb gubu guel guer gugb guge gugg gugu gulb gule gull gult gulu gurb gure gurg gurl gurr gurt guru gute gutt gutu lbgt lblr lbrt lbug le-u lebu leel leer leet lege legg lele lell lelu lere lert lete lett leur lgbt lgbu lger lgte llet lleu llll lrgb lrrr ltbl ltee ltge lttr lube lueg luer luge lugg lugu lule lull lulu lure lurg lurt lute rbbb rbbr rble rebb rebe rebu reeb reel reet rege regl regr regt regu relb rele rell relt rere rerg rert reru rete retr rett reue reul reut reuu rgbe rgtr rlee rleu rlug rrle rrrr rtee rtle rtlt rubb rube rubu ruel ruer ruet ruge rugg rule rull rure ruru rute rutl rutt rutu tbrb tebu teel teer teet tegg tegt tegu tel- tele telg tell telt telu ter- tere terr teru tete tetr tett tetu teut tgel tgle tre- tree treg tret treu trge trte trtr trub true trug trut truu ttbb tter tttt ttul tubb tube tubr tubu tuel tuer tuet tugg tugu tule tull tulu turb ture turg turr turt turu tute tutl tutt tutu ubbe uber ubet uble uele uell uggt ugur uguu uleb ulee ulle ullr ultt ulul urbe ure- uret urge urgu urle urre urte urur urut utel uter uttu utug uulu uuuu

-tree bbbee be-er bebel beber beebe beele beete beeut begee beget begge begle begue begur begut belee beleg belet belge bellb belle belue belur belut berbe bereg berel beret berge berle berre berru berte betee betel beter betle betre bett- bette betul beuer beule beure beute bleer bleet blere blete bleue bluer bluet blurb blure blurr blurt brebu breel breer breet breg- brege bregg brell brere brett breu- brrrr bruer bruet bruge brugg brule brull brute btr-t bubbe buber buble buell buger bugge bugle bugre bulb- bulge bull- bulle bulul bulut burel buret burge burgu burle burru burte burtt burut buter butle butte butut ebber ebbet ebble ebell eberg eberl ebert eblul ebull ebure eeeee eeler egger egret eleet elegu elele eleut elge elgee elger ellel eller ellet ellul elulu eluru elute erbbe erber erege erere errtu erte ertel erter ertug etete etree ettel etter ettle eturu euell euler eurel eurre gberg gberu gebel geber gebet gebre gebur geere geert geete gegge gelee geler gelle gelru gelug gerbe gerle gerre gertt getee geter gette ggulu glebe gleer gleet glegg glele glere glete glett glubb gluer glut- glute glutt grebe greer greet grege gregg grell grete gretl grett greut grgur grrrl grrrr grubb grube gruel grure gruut gtube gubbe guber gubru guell guelt guere gugel gugul guler gulet gulle gulte gurge gurle gurlt gurre gurur gutte lebel leber lebet leell leere leert leger legge leleu lelle lerer lerge letbe letre lette letur leuge llerg lubbe luber luble lubur luger lugge lugre lulle lulte lulul lurer lurgg lurue lute-