ferr fert feru fete fetp fetr fett fetu feud ffee ffff ffrr fftf fldr fled flee fler flet flod floe floo flop flor flot flou flud flue fluf fluo flur fode foed foer fofo fold fole foll folo folr folt food foof fool foot fopp for- ford fore forl foro forr fort fote foto fotp fott foud foul foup four fout fpdl fpdt fprf fred free freo frep fret froe frol frop frot frou frpd frue ft-l fter ftop ftpe fudd fude fuel fuet fuff fufu fule full fulu fuor fur- fure furl furo furr furt fute futo futu lddp ldeo le-u lede ledo ledt leed leef leel leep leer leet lefe leff left lele lell lelo lelu leod leof leor leou lepe lepo lepp lept lerd lere lero lerp lert lete leto lett leud leur lfrd lftp lldp llef llet lleu llll llod lloo llud lode loeu lofe loff loft lold lole loll lolo lood looe loof lool loop loor loot lope lopp lopu lord lore loro lotd lote lotl loto lotr lott loud loue loul loup lour lout louu lpfp lpft lpod lppl lprp lrdd lrpu lrrr ltee lttr ludd lude ludo lued luef luer lufe luff luft lufu lule lull lulu lupe lupo lupu lurd lure lurt lute luup o-eo oddd oded odel odeo oder odet odle odoo odop odor odot odou odrl odrp odtu odur oedo oele oere oeuf ofdr ofer off- offe offo offr offu ofor ofre oftp olde ole- oled olef oleo oler olet olfe olle ollo olof olor olot olpe oltu olur ooer ooff oold oolo oooo oord oore oort ootp oped opel opep oper opet ople opo- opor oppo opto orde ordo ordu ore- ored orel oreo orer orfe orff orfu orle orlo orlu oro- oroe orof oror orot orpe orro orte orto orup oted otee otep oter otfp oto- otoe otof otoo otor otpp otre otro otte otto ottu otur oude oued ouer oufe ouff ould oule oulu oupe our- oure ouro ourt out- oute outo ouu- pdpr ped- pede pedf pedo peed peel peep peer peet peff pel- pele pelf pell pelo pelt pelu peor peou pepd pepe pepo per- perd pere perf perl pero perp perr pert peru pete peto petr pett peul peur peut pfet pfff pffr pfft pfte pldt ple- pled plee pleo plet pleu plff plod ploo plop plot plou plpp pltf pltt plud plue plup plur pod- podd pode podo podu poed poel poer poet poff pold pole poll polo polt polu pood poof pool poop poor poot pop- pope popo popp popt pore poro porr port potd pote potf poto pott potu poud pouf poul poup pour pout pper pple pplo ppod pppd pppo pppp pprf ppru pptt ppur pre- pred pree pref prel prep pret preu prle prlr pro- prod proe prof prol proo prop prot prou prpd prrd prtp prtr prud prue pruf prut pruu pter ptld ptol ptop ptpd ptrd ptrf pu-e pudo pudu pued puel pueo puer puet pueu puff puft pule pull pulo pulp pult pulu pupe pupl pupu pur- pure purl puro purp purr puru put- pute puto putt putu rder redd rede redl redo redr redu reed reef reel reep reet refd refe reff refl refr reft refu reld rele rell relo relp relt reod reof reol reop reot reou repe repl repo repp repr rept repu rerd rere rero rert reru retd rete reto retr rett reue reuf reul reup reut reuu rfef rffl rldt rlee rlef rleu rodd rode rodo roed roel roer roet rofe roff rofl rofo rold role rolf roll rolo rolp rolt rood roof rool roop roor root rope ropo rore roro rort roru rote rotl roto rotr rott roud roue rouf roul roup rout rpdp rpet rpoe rpof rptd rred rrle rrrr rtdt rtee rtle rtlt rttp rudd rude rudl rudo rudp rued ruel ruer ruet rufe ruff rufo ruft rule rull rulo rupe rupp rupt rurd rure ruro rurp ruru rute rutl ruto rutt rutu ruud tdff tdor tedd tede teed teef teel teer teet teff tefl teft tel- teld tele tell telo telt telu teor tepe tepp tepu ter- tere terf tero terp terr teru tete teto tetr tett tetu teut tfot tfpt tftp tldp tldr todd tode todo todt todu toed toee toer toet toff tofo toft tofu tol- told tole toll tolo tolt tolu tood toof tool toor toot top- topd tope topf topo topp topt topu tord tore torf toro torp torr tort toru totd tote toto totr tott toul toup tour tout tpdf tpdu tped tper tpld tpol tppd tppp tppr tpte tptp tptr tput tre- tred tree tref treo tret treu trfd trfr trod troe troo trop trot trou trpe trpp trte trtr trud true trut truu tteo tter ttff ttoe ttop tttt ttul tude tudu tuel tuer tuet tufe tuff tufo tuft tufu tule tull tulo tulp tulu tuor tupe tupo tupu turd ture turf turo turp turr turt turu tute tutl tuto tutt tutu tuuo u-rp udel uder udet udoo udop udot udpd uele uell ufel ufer uffe uftp ulde ulee uleo ulfe ulft ulle ullo ullr ulo- ulto ultt ulul uofl uofo uor- uore updf updo uped uplo upor uppe uppp uppu uptl upto upup urde urdu ure- ured uret urfe urff urft urle uro- urol uroo urpo urre urte urup urur urut utel utep uter utfo utor utpd utto uttu uulu uutf uuuu

-tree d-dot d-rod ddddd dedde dedee deder dedlu dedur dedut deede deefe deeff deele deepe deepp deepu deere defed defeo defer defet deffe deffo defoe defot deled delee deleo deleu delft delle dello deloo delor delut deool deore deoro depel depoe depop depor depot depue derde dered derlo dero- derpt derre derro derue deter detoo detre dette detuo detur deuel deule deure deut- deuto do-do do-ol dodol dodoo dodro doele doerr dofor doled dolee doler dolle dollo dollu dolor dolpo doodo doole doore doote doout dopdf doped doper dopet dople doppe dordt dored doree doret dorff dorot