tuht tuhu turb ture turr turs turt turu tush tuss tust tute tuts tutt tutu tuzu tuzz tzur tzus tzut tzzt ubbe uber ubet uers uess uetz uher uhrs uhss uhuh urbe urbs ure- ureh ures uret urre urrh urse urss ursu urte urth urts urur urus urut uruz usbe usbr usbs usee user uses uset ushr ushs ushu ussb usse ussr usss usst ussu ustb uste usts usus uter utes uthe uttu uuuu uzeb uzer uzuh zber zbus zebe zebu zees zert zest zete zeus zeze zhee zhur zhuz zrze zsss ztst zubr zubu zuhr zurb zurr zuru zust zuzu zzhz zzzs zzzz

-tree bbbee bbser bbuss be-er beber bebes beebe beebs beers beest beete beeth beets beeut beez beher behet behue berbe bereh beres beret berhe berre berru berse berte berth berts berus berze besee beset beshe besse beste bests besut betee beter betes bethe beths betre betrs bett- bette betts betus beuer beure beust beute beuth bezer bezes bheer bhees brebu breer brees breet brere brers brese bresh bress brest breth brets brett bretz breu- breze brrrr brths bruer brues bruet bruhs bruse brush bruss brust brute bruzz bsure btr-t btstu bubbe buber buhse buhtz burbs bureh bures buret burrs burru burse burst bursz burte burts burtt burus burut buser buses bushe busse bussu buste busts busur busut busuu buter butes buthe butte butts butut buzet buzhu buzzr bzzzt ebber ebbet ebers ebert ebure eeeee ehret erbbe erber erebs erere eresh erest erets eretz erhus erres errtu erses erste ersts erte erter ertes erthe erubs eruts esbus esere esher eshes eshre esser esses essse essue estee ester estes estet esths estre estur estus esure etest etete ether etree etres etter ettes eturu etush eurre eurus euser euzet ezhes h-e-b he-he hebbe hebe- heber heebs heere heers heese heest heete heeze hehes hehte herbs heres herez herre herrs herse hersh herte herth herts hertu hertz herur herut heruz heshe hesse hests hesus heter hetes hethe heths hette hetur heuer heure heurt heuss heute hheth hhhhh hrere hters htest hthrt htree hubbe hubbs huber hubur huere huers huest huete huhuh huhus hurbe hureh hurez hurre hurst hurts hurtt hurtu huser hushe husht hutte huttu hutus huuru rebbe reber rebet rebts rebus rebut reere reerh reese reest reeth reetz reeze reher rehet rehue rere- reree reres reret rerez resee reses reset resht resse reste restr rests resue resus retee reter retes rethe retsu rette retts reuer reuet reuse reuss reute reuth reuze rezes rhees rhett rsust rubee ruber rubes rubus ruere ruers ruete rueth ruetz ruhrs ruhub ruses rushh russe russh ruste rusts rustu ruteh ruter ruthe ruths ruthu rutte ruuth ruutu s-bus sebbe sebes sebet seebe seehe seere seers seese seest seesu seete seeth serbs sereh serer seres seret serez serre serse serss sert- serte serts serue serut seser seses seshu sesse seste sestu sesue setee seteh seter sethe seths sethu setse sette setts settu setus setut setzu seuer seure seuss seute sezer sezze sheer sheet shehe shehu shere sherr shers shert shesh shete sheth shets shett sheue sheze shezu shhhh shree shrub shubb shure shurt shuru shush shust shute shuts shutt shutu sssrb ssssh sssss steer stees steet stere sterr sters stert stesu stete steth stets steur sthrt strbe streb stree stret streu strez strrs strub strue strut sttrz stube stubs stuer stuhr sturb sture sturt stuse stush stuss stute stuth stutz stuue subbu suber subss subst suere suers suess suest suete sueth suets sueur suhre suhur sureh surer sures surre surte surtr suruh surur surus suser suses susse susus susuz sutee suteh suter sutes suthe sutte sutth suttu sutzu suzue t-hub tbtbt tbutt teber tebet teebs teehs teers teese teest teeth teets tehee teres teret tereu terre terrs terse tert- teshe teshu tesse teste tests teter tetes tethe teths tetr- tetsh tetsu tette teuhe teuts thebe theeb theer thees theeu ther- there thers these thesh thete theth theue theus theze thre- three thret threu thrub thrue thrus thsts thubs thuet thure thurs thurt thuru thute thuuz treer trees treet trere tres- trese tresh tress trest trete trets trett treus treut trubs trubu truer trues truse trush truss trust trute truth truus tsebe tsere tsets tsuru tsuur ttest ttttt ttusb tubbs tuber tubes tuhte turbe turbt tureh turet turre turse turss turst tursu turtu turut turze tushe tutee tutte tutus tuuru tzere tzute uber- ubers ubrez uetze uh-ee uh-uh uhhuh uhuhs uhuru urbes urshu ursus urter urthe urubu urutu urzut usees users usest useth usher ushes ushus usses usshe uster usthe ustur usure usutu uter- uther uthes utter uttur utube uturu uuuuu uzere uzes uzhur z-ter zbure zebre zebub zebus zeese zeher zerbe zerre zeste zests zetes zeuet zeuss zhuzh zrbtt zu-zu zuber zubrs zuhrs zurs zuzes zzzzz

b-tree bbbbbb bbsers beebee beebes beerse beerst beerze beeste beeter beezer beezus behest behete behter berbee berber berbes bereet berere berest berets berhet berrer berres berret bersee berset bertes berthe berths bertre bertus berube berust besbes besbre besert besets besher beshet beshut besser besses besset besshe bessus bester besure betere betete betrue bettee better bettes betutu betzet beurre beuste bezeth brebes breere breese breest breeth breeze breres bresse breste brests brethe brette bretts breuer breust brubru bruree brusht brusse bruste brutes brutus brzuze bs-tbs bthree bubber bubbes bububu bueres buetts buhrer burbet burbur burets burree burrer burret burser burses burseu bursts bursut burutu burzet busbee busher bushes bushet bushsr busser busses busset bussh- busshe bustee buster butere buthus butter buttes butthe bututs butzer buzzer buzzes bzhete ebbers ebbert ebbest ebbeth ebbets eberts eburru ebusus eebree eez-eh erbree erebus erestu eresus eretes errest erreth errett ershes erster ersure eseebu eshete essebt essert essess esssse essure estees esters esther estree estres estrus estter esttes esture eszett eszter ethere ethers ethete etrez ettutu eusebe eutere he-she hebbur hebesu hebete hebsur heebee heehee heerse heeter heezes hehehe hehheh herber herbes herbet herbst herher hersee herses herter herthe herust hesees hesher hesser hesses hesshe hester hestre hestur heter- hether hetter hetzer heures heurte heuser heusse