feet fefe feff fefo fele felf fell felo felt feof ferb fere fero ferr fert feru fete fetp fetr fett fetu ffee ffff ffrr fftf flee fler flet flob floe floo flop flor flot flou flub flue fluf fluo flur fobt foer fofo fole foll folo folr folt foof fool foot fopp for- forb fore forl foro forr fort fote foto fotp fott foul foup four fout fprf free freo frep fret frob froe frol frop frot frou frub frue ft-l fter ftlb ftop ftpe ftub fubb fubu fuel fuet fuff fufu fule full fulu fuor fur- fure furl furo furr furt fute futo futu lblr lbrt le-u lebo lebu leef leel leep leer leet lefe leff left lele lell lelo lelu leof leor leou lepe lepo lepp lept lere lero lerp lert lete leto lett leur lftp llef llet lleu llll lloo lob- lobb lobe lobo loeb loeu lofe loff loft lole loll lolo loob looe loof lool loop loor loot lope lopp lopu lore loro lote lotl loto lotr lott loue loul loup lour lout louu lpfp lpft lppl lprp lptb lrpu lrrr ltbf ltbl ltee lttr lube luef luer lufe luff luft lufu lule lull lulu lupe lupo lupu lure lurt lute luup o-eo obbo obel ober obet oble oblu oboe obol obor obot obre obro oele oere oeuf ofer off- offe offo offr offu ofor ofre oftp olbo ole- olef oleo oler olet olfe olle ollo olof olor olot olpe oltu olur oobe ooer ooff oolo oooo oore oort ootb ootp opel opep oper opet ople opo- opor oppo opto orbb orbe orbo orbu ore- oreb orel oreo orer orfe orff orfu orle orlo orlu oro- oroe orof oror orot orpe orro orte orto orub orup otee otep oter otfp oto- otoe otof otoo otor otpp otre otro otte otto ottu otur ouer oufe ouff oule oulu oupe our- oure ouro ourt out- outb oute outo ouu- pblu pbrf pebl peel peep peer peet peff pel- pelb pele pelf pell pelo pelt pelu peor peou pepe pepo per- pere perf perl pero perp perr pert peru pete peto petr pett peul peur peut pfet pfff pffr pfft pfte plbr ple- pleb plee pleo plet pleu plff plob ploo plop plot plou plpp pltf pltt plue plup plur pobo poel poer poet poff pole poll polo polt polu poof pool poop poor poot pop- pope popo popp popt porb pore poro porr port pote potf poto pott potu pouf poul poup pour pout pper pple pplo pppo pppp pprf ppru pptt ppur pre- preb pree pref prel prep pret preu prle prlr pro- prob proe prof prol proo prop prot prou prtp prtr prue pruf prut pruu ptbl pter ptol ptop ptrf pu-e pube publ pubu puel pueo puer puet pueu puff puft pule pull pulo pulp pult pulu pupe pupl pupu pur- purb pure purl puro purp purr puru put- pute puto putt putu rbbb rbbr rble rebb rebe rebo rebu reeb reef reel reep reet refe reff refl refr reft refu relb rele rell relo relp relt reof reol reop reot reou repe repl repo repp repr rept repu rere rero rert reru rete reto retr rett reue reuf reul reup reut reuu rfef rffl rlee rlef rleu rob- robb robe robo robt robu roel roer roet rofe roff rofl rofo role rolf roll rolo rolp rolt roob roof rool roop roor root rope ropo rore roro rort roru rote rotl roto rotr rott roub roue rouf roul roup rout rpet rpob rpoe rpof rrle rrrr rtbf rtee rtfb rtle rtlt rttp rubb rube rubp rubu ruel ruer ruet rufe ruff rufo ruft rule rull rulo rupe rupp rupt rure ruro rurp ruru rute rutl ruto rutt rutu tbrb tbtp tebo tebu teef teel teer teet teff tefl teft tel- tele tell telo telt telu teor tepe tepp tepu ter- tere terf tero terp terr teru tete teto tetr tett tetu teut tfeb tfot tfpt tftp tobe tobo tobt tobu toee toer toet toff tofo toft tofu tol- tole toll tolo tolt tolu toof tool toor toot top- tope topf topo topp topt topu tore torf toro torp torr tort toru tote toto totr tott toul toup tour tout tper tpol tppp tppr tpte tptp tptr tput tre- tree tref treo tret treu trfr troe troo trop trot trou trpe trpp trte trtr trub true trut truu ttbb tteo tter ttff ttoe ttop tttt ttul tubb tube tubo tubr tubu tuel tuer tuet tufe tuff tufo tuft tufu tule tull tulo tulp tulu tuor tupe tupo tupu turb ture turf turo turp turr turt turu tute tutl tuto tutt tutu tuuo u-rp ubbe ubbo uber ubet uble ublo ubtf uele uell ufel ufer uffe ufpb uftp uleb ulee uleo ulfe ulft ulle ullo ullr ulo- ulto ultt ulul uofl uofo uor- uore upbe uplb uplo upor uppe uppp uppu uptl upto upup urbe ure- uret urfe urff urft urle uro- urol uroo urpo urre urte urup urur urut utel utep uter utfo utor utto uttu uulu uutf uuuu

-tree bbbee be-er be-ro bebel beber beblo bebop bebot beebe beeft beele beete beeut beffe befoe befol befor befur belbo belee belef belep belet bellb belle bello belot belue belur belut beofe beoff beote beour bepop beppe beppo beppu berbe berel beret berle berlo berob beroe berol beror berre berru berte berto betee betel beter betle betoo betor betou betre bett- bette betto betul beuer beule beure beute bleep bleer bleet bleft blere blerp blete bleue bloef bloop bloor blorb blore blorp blort blote bloto blott bloue blout bluer bluet bluff blufr bluft blurb blure blurr blurt bluto bo-bo bobet boble bobr bobre bobup boeol boero boeuf boeur bofet boffo bolbe bolel boleo boler bolet boll- bolle bollo bollu bolte bolto booer boole boore boort booru bopet borbo boree borel borer boret borle boro- boroo borot borou borre borro borul borup borut botel botet botou botro botte bottu bouee bouel bouer bouet boul- boule boulo boult boure