nerm nerr nert neru net- netb nete nett neuc neue neum neun neur neut neuu nm-e nmmc nmnt nmrc nmtb nmtc nnmc nnmt nnnn nntn nrem nren nrrc ntbc ntcc nter nteu ntnu ntrc ntru nttm nttr ntuc nubc nube nuce nucu nuee nuer numb nume numm numt numu nunc nune nunn nunt nurc nure nurn nurr nurt nuru nute nutt nutu rbbb rbbr rcbc rccb rccc rcet rcnr rctc rebb rebe rebu recc rece recm recr rect recu reeb reem reen reet reme remn rene renn rent renu rere rert reru rete retr rett reue reut reuu rmtu rnbr rnnt rnut rrmc rrrr rrum rrun rtcc rtce rtcm rtee rtmc rubb rube rubu ruce ruct ruen ruer ruet rumb rume rumm rumt runc rune runn runt rurc rure ruru rute rutt rutu ruun tbcb tbcc tbce tbrb tccc tccu tcnn tctc tebu tecr tect teec teem teen teer teet teme temu tenb tenc tene tenn tent tenu ter- terc tere term tern terr teru tete tetr tett tetu teut tmbc tmbr tmcc tmcm tmen tmnt tmtt tnbc tncc tneb tnut trcc tre- trec tree trem tren tret treu trmb trmu trtc trte trtr trub truc true trun trut truu ttbb ttcn tten tter tttt tubb tube tubr tubu tucc tuen tuer tuet tumb tume tumu tunb tunc tune tunn tunu turb turc ture turm turn turr turt turu tute tutt tutu tuum ubbe uber ubet ucbc ucmc ucrc ucut umb- umbe umec umer umet umut unbe uncc unce unct uneb unec unee unen uner unmc unmr unne untb unte unum unut urbe ure- uret urne urre urte urum urun urur urut utec uter utmb utne uttu uuen uuuu

-tree bbbee be-er beber becue becum becut beebe beene beete beeut bembe bemer bemet bence bene- benet benne bennu benue benun benur benut berbe bercu berec beren beret berme berne bernt berre berru berte berum berun betee beten beter betne betre bett- bette beuer beure beute brebu brece breem breen breer breet breme bremm brene brenn brent brere brett breu- brmmm brrrr bruce bruen bruer bruet brume brumm brune brunn brunt brute bruun btc-e btr-t bubbe buben buber bucet bucum bucur bumbu bumme bunce bunne bunte bunun bunut burcu buren buret burn- burne burnt burru burte burtt buruc burun burut butec buten buter butme butte butut c-met c-tec ccccc ccett ccnet cebec ceber cecum cecun ceene ceere cemec cemre cence ceneu cent- centr cerbu cerc- cerce cerec ceren cerer ceret cerne cerre certe ceten cetme cette cetun cmene cmere cmune cneru cnnnn cntrc crebe crece creem creen creer creme cren- crete cretu creu- creue crnce crnec crner cruce cruet crumb crume crune crunt crure ctcum cten- ctene ctree cttee cubbe cubeb cuber cubub cumbe cumbu cumec cumm- cunne cunt- cunut curce curer curet curre cutcu cutee cuter e-ten ebber ebbet ebene ebern ebert ebner ebure eccen ecume eeeee eembc eemct eence eener eenet eeten embee ember embue embun emcee emeer emere emert emmen emmer emmet emnem emtec emtee emure enbun encre encur enent enete enmer enmun ennet enrum enrut enten enter entre enure enurn erbbe erben erber erect ereen erem- erere ernen ernet errtu erte erter ertun eruct etern etete etnre etree etrun etten etter eturu eucen eucre eum-u eunet eurre m-net mbcet mbebe mbere mbret mbube mburu mcbee mccue mcnee mcree mcren mcube mebbe mecum meece meemu meene meere meete membe memer mence menem menen mener menet menne mente mentu merce merer meret merre merte merur meten meter metr- metre metrn mette metur meuer meure meute mmccc mmmcc mmmmm mnem- mneme mrcub mreru mrmet mt-tc mt-te mt-tm mt-tn mt-tr mt-tt mtree mtume muctc mucum mucun mucur mumbe mumcu mumme mummu mumun munec munen munne munnt munte munuc muren muret mureu murre murru murum murut muter mutet mutne mutum ncree ncube neber nebet nebtu necr- nect- neece neeme neere neetu nembe nembu nemce nemec nemen nenem nente neree neret nerre nerte nerur neten netne nette netum neuen neuer neueu neume neumu neune neur- neure nnebe ntete nu-nu nucet nucmc numen numme nunce nunet nunun nurce nure- nurme nurun nutec nutte rebbe rebec reber rebet rebun rebut recce recen recet rect- recte recue recur recut reece reeme reene reere remee remen remer remet remue rence renee rener renet renne rente rere- reree reret rerum rerun retee retem reter retnr rette reuen reuer reuet reume reune reute rmnmn rmutt rnmnt rnrmc rtenn rubee ruben ruber rucer ruere ruete rueun rumbe rumen rumer rummu runcu runec runer runet runmc runne runte rurec ruten ruter rutte ruutu t-men t-nut tbtbt tbutt teber tebet tecn- tecnu tectb tecum teeme teemu tembe tembu temne tenbc tencc tence tenen tener tenet teneu tenne tennu tente tenue tenur terce terem teret tereu terme terne terre tert- teten teter tetr- tette tntnt treen treer treet treme trenc trene trent trere trete trett treut trubu truce truer trume trute ttnet ttttt tuber tucet tuctu tucum tuene tumbe tumbu tumen tumut tune- tuner tunne turbe turbt turem turen turet turn- turne turnt turnu turre turtu turut tutee tutte tutun tuuru u-cee u-men ubeen uber- ubume uenmr umbe- umber umbre umeer umeme unbet uncut unete unmee unmet unnet unnun unnur unnut unrun unten unter unurn ureme urent urter urubu uruce urucu urutu utenn uter- utmer utrum utter uttur utube uturn uturu uunet uuuuu

b-tree bbbbbb bebnum becune becure beebee beebem beembe beemen beemer beerme beerne beeter bemeet bement bemete bemute benben beneme benete benett benner bennet bennur benreu bentee benter benumb berbee berber bereet berene berere bermet berner bernet berrer berret bertem bertre berube beteem betere betete betrue bettee betten better betune beturn betutu beumer beuren beurre breere bremen bremer brener brenne bretcu brette breuer brubru bruern bruner brunet brunne bruree brutum bubber bububu buerne bumbee bummer bunnet bunter burbet burbur burcer burn-e burner burnet burnum burnut burree burren burrer burret burutu butene butere butner butnet butten butter butucu c-cube cbterm cebren ceecee ceener cement cenere center centr- centre centru centum centur cerete cermet cerner cernet cernuc ceruce cetene cnbc-e creete cremec cremer