tsts tsys ttbb tter ttss tttt ttys txtr tyce tyee tyer tyes tyet tyr- tyre tyrr tyse tyss tyst tyte tytt tyty tyxt xbee xces xeer xer- xers xert xexe xtbs xtry xtsr xxxx xxxy xyr- xyst ybbs yber ybet ybry yccc ycee ycsb yctc yeer yees yeet yerb yere yerr yers yert yery yess yest yete yets yett yext yeye yeyr ysby ysee yser yses yset ysse ysyb ytre yyyy

-tree bbbee bbser bbsrc bcbst bcers be-er beber bebes becry beebe beebs beeby beers beery beest beete beets beety berbe bercy berec beres beret berey berre berry berse berte berts berty beryx besee beset besey besse bessy beste bests besys betee beter betes betre betrs betsy bett- bette betts betty betyb betys beyer beyre beysc beyte bre-x brece brecy breer brees breet brere brers brery brese bress brest brets brett bretx breyr brrrr brsec bryce brys- bryt- btc-e btr-t by-by bybee byers byres byrre byrse byrst byrte bysee byset bysse bytes bytr- bytyc c-tec cbers cc-by ccccc ccett cebec ceber cebes cecyt ceere ceese cerc- cerce cercs cerec cerer ceres ceret cerre cerrs cerse cerss certe certs certy cerys ceryx cesce cescr cesse cessy ceste cests cetes cette cetty cexty crebe crece crecy creer crees cresc crese cress crest crete crres cryer crys- csere cstcc ctree cttee cybbe cyber cyete cyrt- cyser cyst- cysts cytec cytee cytrx cytte cytyc ebber ebbet ebers ebert ecser eeeee erbbe erber erebs ereby erecs erect erere erest eresy erets erres errey erses erste ersts erte erter ertes erysy esces escrt escry esect esere esser esses essex essey essse estce estee ester estes estet estey estre estry estye etest etete etext etree etres etter ettes excsc execs exect execx exert exsec exter extre extry extts eyere eyers eyess eyets eyrer eyres rebbe rebec reber rebet rebts recce reccy recet recry rect- recte rects recyt reece reecs reere reese reest reesy rere- reree reres reret resee reses reset resse reste restr rests resty resye retee reter retes retex retry rette retts rexer rexes reyes reyse reyst reyte rtext rybee ryese rysse ryste rytte ryyty s-tec sccbc scere scert screc scree screy scrye scter sctrs scyes scyrt scyt- scyte sebbe sebes sebet secre secte sects secty seebe seece seere seers seese seest seete serbs serby serce sercy serec serer seres seret serre serry serse serss sert- serte serts serye sesce seser seses sesse seste setby setec setee seter setse sette setts setty setye sexer sexes sexey sexst sext- sexte sexts seyer seyre seyse srbce srbec sssrb sssss stcyr steer stees steet sterc stere sterr sters stert stete stets steye steyr steys strbe streb stree stret strey strrs stryx styer styes styre sycee syces syres syrts syser sysse systs syter syxte t-rex tbtbt tbyte tcbys teber tebet tebey tectb teebs teers teese teest teets teety terby terce teres teret terex terre terrs terry terse tert- tesse tessy teste tests testy teter tetes tetex tetr- tette tetty texte texts teyre teyse treer trees treet treey trere tres- trese tress trest trete trets trett trety trexs trexy treye treys trsce trxye trybe tryce tryer tryst tryte tryys tsebe tsere tsets tsrcs tsyrt ttest ttttt tybee tyees tyere tyers tyree tyrer tyres tyret tyrse tytte tyxte xbxrx xebec xeres xerse xerte xetec xetex xexex xtext xtree xysts y-set y-str ybete ycbcr ye-es ye-ye yebes yeees yeere yeers yeest yeesy yerbs yerby yeres yerse yerst yes-r yeses yesse yesss yeste yests yesty yeter yette yetts yexes yeyre yrest ysett yseye ysset ytres ytter yyete

b-tree bbbbbb bberry bbeyes bbsers beebee beebes beerse beerst beerys beesby beeste beeter berbee berber berbes bereet berere beresc berest berets berrer berres berret bersee berset bertes bertre bertry besbes besbre besert besets besser besses besset bessey bestby bester bestry betere betete betsey betsys bettee better bettes bettys bexter beyete brbcsc brebes brecey breere breese breest breres bresse breste brests bretby brette bretts breyer bryest brytte bs-tbs by-bet bybbey byccer byebye bysext bystre bystry cbseye ceecee ceesse cerete certes cesser cesses cesset cessey cestes creese creest creete cresce creset cresse cresst cressy creste crests cresty cretes creyer creyse cryers cryert csecse cyber- cybers cyerce cyster cytees e-text eb-eye ebbers ebbert ebbest ebbets eberts eccyty eebree eerect erbree erects eretes errest errett erster eryrys esetce essebt essert essess esssse estees esterc esters estery estree estres estter esttes etcetc etercy etexts excess excrex excyst exects execxs exerce exerts exeter exsect exsert exxset eyerer eyesse eyster r-tree re-try rebbec rebbes rebecs rebets recces recess receyt recyte reects reeser reeses reests reesty reetry rerees rescet rescry resect resees resets reseyt rester restes restey restte resyst resyte retece reteer retees reteet retere retest retree retret retter rexsee reyses reyste reyter ryssby screeb screes screte scryer sebete sebree sebseb secess secres secret secter see-er seesee seetec sercer serere serers serest serety serre- serres serret serrey sesser sesses sester sestet sestre setees seters setext setsby settee setter sexers sextes sextet sextry sexyer seyres steber steere steers steery stere- sterer steres sterre sterte steyer steyre street stress strete streyt stryte sttstc styrer styrre sycees sycers syrets syrtes sysers sysert t-test t-tree tbtest tbytes teebee teerts teests teetee teeter tercer terces tercet terese terete terets terrer terres terret terrex terrye terrys terser terset terter tertre tertry tesser tesses testee tester testes testey testy- tetete tetter tettey texsys texter teyber teyrse teyser tr-rec trebce trebes trebry treece treete treets tresse tressy tretee tretes trette tretty tretys trexes treyse treyst treyte tryers tryste trysts trysty trytry tsetse ttests ttyrec tyerce tyerse tyrese tyrret tyster tyxste x-tree xebecs xerces xerert xerxes xxyyxx xyster ybette yeeres yerere yerres yersey yesses yessey yester yesyes yetter ysette

b-trees bbbbbbb bebryce beetree berbere berbers berbery beretts berrett berryer bertree bestbet besteer bestest betrese betrest betters breeses bresser brettes breyers bx-tree bye-bye byebyes cerbere cerebr- cerebyx cereste ceretes cert-ee certers cessers cextrye creeses creeste cresser cresses cresset cressey crestet creysse creyste cryerts cstreet e-texts ebcyeet erecter ersters es-tset essexes esterre estrees estreet estrete etterby excerse excress excrete exeters exsects exserts exterse eye-sex eye-sys eyerest