-er -ey bbb bbe bbg bbr bbs bbt bby be- beb bee beg ber bes bet bey bgb bge bgg bgr bgs bgt brb bre brg brr brs brt bry bsb bse bsg bsr bss bst bsy btb bte btg btr bts btt bty by- bye byg byr bys byt ebb ebe ebg ebr ebs ebt eby eeb eee eeg eer ees eet eey egb ege egg egr egs egt egy erb ere erg err ers ert ery es- esb ese esg esr ess est esy etb ete etg etr ets ett ety eye eyr eys eyt gbe gbg gbr gbs gbt gby ge- geb gee geg ger ges get gey ggb ggg ggr ggs ggt grb gre grg grr grs grt gry gsb gse gsg gsr gss gst gtb gte gtg gtr gts gtt gty gy- gyb gye gyr gys rbb rbe rbg rbr rbs rbt re- reb ree reg rer res ret rey rgb rge rgg rgr rgs rgt rrb rrg rrr rrs rrt rsb rse rsg rsr rss rst rtb rte rtg rtr rts rtt rty ry- rye ryg ryr rys ryy sbb sbe sbg sbr sbs sbt sby se- seb see seg ser ses set sey sgb sge sgg sgr sgs sgt sr- srb sre srg srr srs srt sry ss- ssb sse ssg ssr sss sst stb ste stg str sts stt sty sy- syb sye syg syr sys syt tbb tbe tbg tbr tbs tbt te- teb tee teg ter tes tet tey tgb tge tgg tgr tgs tgt tgy trb tre trg trr trs trt try tsb tse tsg tsr tss tst tsy ttb tte ttg ttr tts ttt tty tye tyg tyr tys tyt ybe ybg ybr ybs yby yeb yee yeg yer yes yet yey yre yrg yrs yrt ysb yse ysg ysr yss yst ysy yte ytr yts ytt yyb yye yyg yys yyt yyy

bbbb bbbs bbeb bbet bbrg bebb bebe beby beeb beeg beer bees beet beey begg begs bere berg berr bers bert bery bes- bese bess best besy bete bets bett beye beyg beys beyt bggs bgst bgye breb bree breg brer bres bret brey brrr brrs brsb brsr brst bry- brye bseb bsee bseg bser bses bset bsgs bsse bsts btrt btry btss bttb byer byes byge bygg byre byrt bysb byse byss byst bysy byte byts ebbr ebbs ebby eber ebes eeby eeee eees eegs eerg eers eery eese eesy eete eets egbe egee eger eggb egge eggs eggy egre egry egss egte egts egyr erbb erbe ereb erer eres eret erg- ergg ergs erre errs erse erst erts erye esbs esee eser eses eset esse essg esst essy este estr ests esty etbr etee eter etes etre etsy ette etty eyeb eyer eyes eyet eyey eyre eyry eyse eyst eyte eyyr gbbs gebe geby geer gees geet gege gegg gerb gere gers gert gery gesg gess gest getb gete getg gets gett geyt ggbt gggg ggss grbr greb gree greg gres gret grey grrr grrs grss gry- grye grys gryt gsse gstr gtbr gybe gyer gyes gyge gyr- gyre gyrs gyse gyss gyst gyte gytt rbbb rbbr rbbs rbss rbst rebb rebe rebs reeb rees reet rege regr regs regt rere rerg rers rert rery rese ress rest rete retr rets rett rety reye reys rgbe rgtr rgts rrrr rsee rsgb rsre rsts rtee rtes rtgs rtss rtts rybe ryeb ryes ryet ryge rysy rytt ryyt sbbs sber sbse sbst se-e se-g se-s se-t se-y sebe sebs sebt seby seeb seeg seer sees seet seey sege segg segs serb sere serg serr sers sert sery sese sess sest set- sete sets sett seye seys seyt sger sges sggg sggs sgss sgts srby sreb sres srgb srtr ssbr ssby ssee sses sset ssgs ssgt ssrg ssrs sssb ssss sstb ssts stbs stee steg ster stes stet stey stge stgr stre strs stry stss sttr stye styr stys syer syes syre syrs syrt syry syse syss syst syte sytt tbbs tbgs tbrb tbst teer tees teet tegg tegs tegt ter- tere terr ters tery tese tess test tete tetr tets tett teye teyr teys tgts tre- tree treg tres tret trey trge trst trte trtr try- tryb trye tryg trys tses tset tsey tsgt tsse tssg tssr tsst tsts tsys ttbb tter ttss tttt ttys tyee tyer tyes tyet tyr- tyre tyrr tyse tyss tyst tyte tytt tyty ybbs yber ybet ybry yeer yees yeet yegg yerb yere yerr yers yert yery yess yest yete yets yett yeye yeyr ysby ysee yser yses yset ysse ysyb ytre yyyy

-tree bbbee bbser be-er beber bebes beebe beebs beeby beers beery beest beete beets beety begee beget begge beggs begry berbe bereg beres beret berey berge bergs bergy berre berry berse berte berts berty besee beset besey besse bessy beste bests besys betee beter betes betre betrs betsy bett- bette betts betty betyb betys beyer beyre beyte breer brees breet breg- brege bregg bregy brere brers brery brese bress brest brets brett breyr brrrr brys- bryt- btr-t by-by bybee byers byger bygge byres byrre byrse byrst byrte bysee byset bysse bytes bytr- ebber ebbet eberg ebers ebert eeeee egers egery egest eggby egger egres egret erbbe erber erebs ereby erege erere erest eresy erets erres errey erses erste ersts erte erter ertes erysy esere esser esses essey essse estee ester estes estet estey estre estry estye etest etete etree etres etter ettes eyere eyers eyess eyets eyger eygre eyrer eyres gberg geber gebet gebre geere geers geert geese geest geete gegge gerbe gerbs geres gergy gerre gerry gers- gerse gerss gerts gertt gerty geser gesse geste gests getby getee geter gette getts getty getye geyer geyre grebe greby greer grees greet grege gregg gregs grese gress grest gresy grete grett greys grrrr gryet gryse gryt- gsses gtsss gybbe gybes gybyt gyges gygge gyrer gyres gyrse gyrss gyser gyses gyste rebbe rebeg reber rebet rebts reege reere reese reest reesy reger reges reget regge regts regtt rere- reree