pirr piru pite piti pito pitr pitt pitu ple- plee plei pleo plet pleu plie plio plip plit ploo plop plot plou plpp plri pltt plue plup plur poel poer poet poil poio pole poli poll polo polt polu pool poop poor poot pop- pope popi popo popp popt pore pori poro porr port pote poti poto pott potu poui poul poup pour pout pper ppie pple ppli pplo pppo pppp ppru pptt ppur pre- pree prel prep pret preu pri- prie prii prle prlr pro- proe prol proo prop prot prou prri prti prtp prtr prue prut pruu pter ptol ptop ptui pu-e puel pueo puer puet pueu puir puit puiu pule puli pull pulo pulp pult pulu pupe pupi pupl pupu pur- pure puri purl puro purp purr puru put- pute puti puto putt putu reel reep reet reii reil reir reit reiu rele rell relo relp relt reol reop reot reou repe repi repl repo repp repr rept repu rere reri rero rert reru rete reti reto retr rett reue reul reup reut reuu riel riep rier riet rieu rile rill rilo rilp rilu riol riot riou ripe ripi ripl ripp ripr ript rire riri rite riti ritl rito ritt ritu riue rlee rleu roel roer roet roil roio roir roit roiu role roll rolo rolp rolt rooi rool roop roor root rope ropo rore rori roro rort roru rote roti rotl roto rotr rott roue roul roup rout rpet rpii rpoe rrle rrrr rtee rtei rtle rtlt rttp ruel ruer ruet ruit rule rull rulo rupe rupp rupt rure ruri ruro rurp ruru rute ruti rutl ruto rutt rutu teel teer teet teie teil teip teir teiu tel- tele teli tell telo telt telu teor tepe tepi tepp tepu ter- tere teri tero terp terr teru tete teti teto tetr tett tetu teut tie- tiee tiei tiel tieo tiep tier tiet tiit tiiu tile till tilo tilr tilt tiop tiou tip- tipe tipi tipo tipp tipt tipu tire tiri tirl tiro tirr tiru tite titi tito titp titt titu tlli toee toei toer toet toie toil toit tol- tole toli toll tolo tolt tolu tool toor toot top- tope topi topo topp topt topu tore tori toro torp torr tort toru tote toti toto totr tott toui toul toup tour tout tper tpir tpol tppp tppr tpte tptp tptr tput tre- tree trei treo tret treu tri- trie tril trio trip trit troe troi troo trop trot trou trpe trpp trte trtr true trut truu tteo tter ttoe ttop tttt ttul tuei tuel tuer tuet tuil tuit tuiu tule tuli tull tulo tulp tulu tuor tupe tupi tupo tupu ture turi turo turp turr turt turu tute tuti tutl tuto tutt tutu tuuo u-ie u-rp ueir uele ueli uell uepi uile uipi uirr ulee uleo ulie ulle ulli ullo ullr ulo- ulti ulto ultt ulul uor- uore upie uplo upor uppe uppp uppu upri uptl upto upup ure- uret urie uriu urle uro- urol uroo urpo urre urri urte urup urur urut utel utep uter util utor utri utti utto uttu uulu uuri uuuu

-tree e-pro eeeee eeler eepee eerie eetti eieio eiler eilet eillo eilot eipri eirie eitel eiter eitri el-op eleet elele eleo- eleot eleri eleut eliel eliot elite ellel eller ellet ellie ellio elloe ellul eloee eloie eloit elole eloor elope elore eloro elote elout elpee elper elrio eltio eltro elulu eluru elute eoile eolie eorre epoll epopt epote eppie epuli epulo epure erept erere erier erio- eriol erite eritu eroor erore eroto erpel errol error errtu erte ertel erter ertil erupt etete etile etio- etite etoll etool etoro etour etree ettel etter ettie ettle eturu euell euler eurel euro- europ eurre ieiri iepe ieper ierei ieroe iette iiiee iiiii iitti ileo- ileri ilio- iller illit illui ilori ilote ilter iltur ilulu ioooi ioooo iorio iotit iotti ipel ipele iperu ipeti ipiti ipopt iport ipour ippee ippei irele irepo irete iriel irill irite irori irour irrel irrep irrit irule irupi itele itell itero itete itire itour itout itpro itrip ittel itter ittoo ittre ittti itu-r itu-t ituri ituro ituru itutu iuliu iuput iurie l-pop leeli leell leere leert leile leill leio- leip- leire leiro leite lelei lelep leleu lelio lelle lelli leoii leoti lepel leper lepet lepir lepo- lepor leppe lepre lept- lepto lerer lerie leroi lerot letil letit letot letre lette letto letup letur leupp leuro lieli liepe liere liero lieto lieup lieut lilet lilie liliu lille lilli lillo lilou liour lipet lipie lipo- lipot lippe lippi lippo liril lirio lirot lirui litel liter litir litre litte litti litui litup liule liuli liupo liure loeil loeri loilo loipe loire lolei loler lolli lollo lolol lolti looer looie loopt loore loote loper lopit lopou loppi lorel loreo lorer loret lorie lorio lorre lorri lorup lorut lotio lotor lotru lotte lotti lotto louer louie louit loule loupe loure louri louro luire luiro luite lulle lulli lulte lulul luper luppe luppi lupul lurer lurie lurio lurue lurup lute- luteo luter lutol lutte lutto lutui luuri oeiro oelet oeppo oerel oerle oiler oilet oilit oille oilup oirot oitti olei- oleo- olepi olere olier olite oliue ollei olleo oller ollie ollio ollup ollur olotu olour oltet oltre oo-er ooioo oolie ooooo oorie opele opelt opelu opepe opere opier opiet opio- opir opito oploo oplot opole oppel opper oppie oppol opter optio opto- optot optto orell oreo- oreoi orere orero oriel orill oriol orito orlet orlop oroer orolu oropi orout orpit orret orter ortet ortoo oruro orutu otell otelo otere oteri otero otile otole otoli otolo otori ototo otour otpor otter ottir ottoi ottur otulu oture ouert ouir- oullo ouoro oure- ourie ourol outer outie outre outro outto p-rep peele peell peere peeri peerl peert peete peile peill peire peirl peirt pelee peler pelet pelio pelit pelle pelli pello pelo- peloe pelor pelot pelou peole pepee pepel peple pepoi peppe peppi pept- pepto pepup perel perer peret peri- perie peril perio perit perle perlo perot perou perre perri