oore oort ootb orbb orbe orbo orce orco ore- oreb orec orel oreo orer orle orlo oro- oroe oror orot orro ortc orte orto orve orvr otcl otee oter oto- otoe otoo otor otov otre otro otte otto ovee over ovet ovo- ovol ovoo ovot ovre rbbb rbbr rbcl rble rcbc rcbo rccb rccc rcet rcle rctc rctv rcvr rebb rebe rebo recc rece recr rect reeb reel reet reev relb rele rell relo relt reol reot rere rero rert rete reto retr rett reve revo rlee rob- robb robe robo robt rocc roce roco roel roer roet roev role roll rolo rolt roob rool roor root rorc rore roro rort rotc rote rotl roto rotr rott rove rovo rrle rrrr rtcc rtce rtee rtle rtlt rtve rv-c rver tbcb tbcc tbce tbrb tccc tcov tctc tebo tecl teco tecr tect teec teel teer teet teev tel- telc tele tell telo telt teor ter- terc tere tero terr tete teto tetr tett tevl tlco tobe tobo tobt toce toco toee toer toet tol- tole toll tolo tolt tool toor toot torc tore toro torr tort torv totc tote toto totr tott tove tovo trcc trcl tre- trec tree treo tret trev troc troe troo trot trtc trte trtr trvl ttbb tteo tter ttoe tttt tvel tver tvro tvrr tvtv vbcc vecc veel veer veet vel- vele vell velo velt veol veor ver- verb vere verl vero vert vete veto vetr veve vevo vlcc vloc vlvt voce voel voer voet volc vole voll volo volt vooc vool voor voot vor- vore voro vort vote voto vrbl vreo vret vroc vrot vrto vtec vtol vtvl vver vvob vvvv

-tree bbbee bbctv bcell be-er be-ro bebel beber beblo bebot becco becel becov beebe beele beete beeve belbo belce belec belee belet bellb belle bello belot belov beote berbe berec berel beret berle berlo berob beroe berol beror berre berte berto betee betel beter betle betoo betor betre bett- bette betto bevce bevel bever bevor bleer bleet blere blete bleve bloor blorb blore blort blote bloto blott bo-bo bobet boble boboc bobov bobr bobre bocce bocet bocle bocor boece boeol boero bolbe bolel boleo boler bolet boll- bolle bollo bolte bolto booce booco booer boole boore boort borbo borce borec boree borel borer boret borle boro- boroo borot borov borre borro borve borvo botel botet botev botro botte bovec bovee bovel brece breel breer breet brell brelo breo- breoc brere breto brett breve brobo broce broer brole broll brolo brool broto brrrr btc-e btr-t c-cor c-evo c-tec ccccc ccctv ccell ccett ccrcl ccrel cctrl cebec ceber ceco- ceele ceelo ceere celco celeb celer cell- celle cello celo- celov celte ceoce ceoor ceorl cerc- cerce cerco cerec cerer ceret cero- ceroc cerre cerro certe cervo ceto- cette cleco cleer cleet clerc clere clete cleto clett cleve clevo clevr cloob cloor cloot clore clort clote clove co-bo co-co cobbe coble cobol cobot cobre cocc- cocce cocco coceo cocle cocol cocto coel- coelo coete coeve cole- colee colel coleo coler colet coll- colle collo colo- color colre cooee cooer coole coolo coore coote corbe corbo corce core- coree corel corer coro- corol corot corre corrl corte corto cortv corve corvo cotel coter cotle cott- cotte cotto covel coveo cover covet crebe crece creel creer crele crell creo- creot crete creve croce croco croll crooe crool croot crore crote crott crove crrel ctree ctrlc ctrol cttee cvrce ebber ebbet ebble ebell ebelo eberl ebert eccle ecole ecolo ecorv ecto- ector ectot eeeee eelco eeler eevee eever elbot elcor elcot elect eleet elele eleo- eleot eleve ellel eller ellet elloe eloee elole eloor elore eloro elote elrec elrob eltro elver elvet eorre erbbe erber ercol erect erere ereve eroor erore eroto errol error erte ertel erter etete etoll etool etoro etree ettel etter ettle evell evere evero everr evert evete evett eveve evocb evolo evolv evoor evote evvol lebce lebec lebel leber lebet lecce lecco leece leeco leell leere leert leeve lelle lelov leove lerer leroc lerot letbe letot letov letre lette letto levec levee level lever levet levo- levor levre lobbe lobbo lobec lober loble lobo- lobor lobov loco- locro loeve loler lollo lolol looce loocv looer loore loote loove lorel loreo lorer loret lorre lotec lotor lotte lotto lovce lovee lover lovet lovre lovro ltcol lvovo o-r-b obbet obcov obele obert obete obole obolo oboro obote obreb obrov ocelo ocllo ocoee ocote ocr-b ocree octet octo- octol octor oeco- oelet oelve oerel oerle oleo- olere olleo oller olovo oltet oltre olver oo-er oocre ooooo oovoo orbec orble orbot orcet oreco orell oreo- orere orero orlec orlet orlov orobe orobo oroco oroer orret orter ortet ortoo orvet otcbb otell otelo otere otero otoce otole otolo ototo otrov otter ottov oveco over- overo overt ovett ovolo r-co- rcolo rebbe rebec rebel reber rebet rebol recce recco recet rect- recte recto reece reere reeve relee relet rello relot relov relte rere- reree reret rerob retee retel reter retro rette retto revco revel rever revet revle revol ro-ro robbe robbo robec rober roble robo- robor robot robrt robte rocco rocor rocov roell roero roleo rollc rolle rollo rooer roole roore roote roove rorer roteb rotel roter rotle roto- rotol rotor rotot rotte rotto rover rtrev rttov rvlot tbolt tbtbt tcell tcobb teber tebet tectb teele teell telce telco tele- telec teleo teler tell- telle tello telo- telve teoco teolo teotl terce terco teret teror terre terro tert- terve tervo tetel teter tetle tetov tetr- tetro tette tevel tevet tevot tlell tlett tllbr to-be tobbe tobel tober tobet tobol tobor tobot tobre tocco toco- toece toerr toeto tolbo toler tolet tolle tollo toloo tolor tolve toobe toole toolt toore torbe torce torel toreo toret torob torre torro torte torto torve totel toter totle toto- totoe totoo totte tover tovet trboc treco treer treet trele trere trete trett treve troco troee troll trott trove trovo ttttt tvtel tvvcr v-bob v-bor veber vebre vecer vecov veeco veele veell veere veeve velct velet velev velle