otpp otre otro otte otti otto ottu otur oucc ouer ouie ouii ouir ouit oupe our- oure ouro ourt out- oute outi outo ouu- pccc pcce pcep pcer pcip pcoe pcpp pcrc pcre pcte pece peci peco pecr pect peec peep peer peet peio peip peir peit peor peou pepe pepi pepo per- perc pere peri pero perp perr pert peru pete peti peto petr pett peur peut picc pice pici pico picr pict picu piep pier piet piip piot pipe pipi pipo pipp pirc pire piri piro pirr piru pite piti pito pitr pitt pitu poce poco poer poet poio poop poor poot pop- popc pope popi popo popp popt porc pore pori poro porr port potc pote poti poto pott potu poui poup pour pout ppcc ppci pper ppic ppie pppo pppp pprc ppru pptt ppur prcc prcp pre- prec pree prep pret preu pri- prie prii pro- proc proe proo prop prot prou prri prtc prti prtp prtr prue prut pruu ptcc pter ptop pttc ptui pu-e puce pueo puer puet pueu puir puit puiu pupe pupi pupu pur- pure puri puro purp purr puru put- pute puti puto putt putu puuc rccc rcep rcet rcic rcpi rcpo rcpt rctc rcti recc rece reci recp recr rect recu reep reet reii reir reit reiu reop reot reou repe repi repo repp repr rept repu rere reri rero rert reru rete reti reto retr rett reue reup reut reuu ricc rice rico rict riep rier riet rieu riot riou ripe ripi ripp ripr ript rire riri rite riti rito ritt ritu riue rocc roce roco roer roet roio roir roit roiu rooi roop roor root rope ropo rorc rore rori roro rort roru rotc rote roti roto rotr rott roue roup rout rpet rpii rpoe rrrr rtcc rtce rtee rtei rttp ruce ruci ruct ruer ruet ruit rupe rupp rupt rurc rure ruri ruro rurp ruru rute ruti ruto rutt rutu tccc tccu tcep tcpo tctc teco tecr tect teec teer teet teic teie teip teir teiu teor tepe tepi tepp tepu ter- terc tere teri tero terp terr teru tete teti teto tetr tett tetu teut ticc tice tico tie- tiee tiei tieo tiep tier tiet tiit tiiu tiop tiou tip- tipc tipe tipi tipo tipp tipt tipu tire tiri tiro tirr tiru titc tite titi tito titp titt titu toce toci toco toee toei toer toet toie toit toor toot top- tope topi topo topp topt topu torc tore tori toro torp torr tort toru totc tote toti toto totr tott toui toup tour tout tpcp tper tpir tppp tppr tpte tptp tptr tput trcc tre- trec tree trei treo tret treu tri- tric trie trio trip trit troc troe troi troo trop trot trou trpc trpe trpp trtc trte trtr truc true trut truu ttcp tteo tter ttoe ttop tttt tucc tuco tuei tuer tuet tuit tuiu tuor tupe tupi tupo tupu turc ture turi turo turp turr turt turu tute tuti tuto tutt tutu tuuo u-ie u-rp ucci uccp ucio ucrc ucut ueir uepi uipi uirr uocc uor- uore upci upic upie upor uppc uppe uppp uppu upri upto upup urci ure- uret uric urie uriu uro- uroo urpo urre urri urte urup urur urut utec utep uter utor utri utti utto uttu uucp uuoc uuri uuuu

-tree c-cor c-p-c c-pop c-tec ccccc cccii ccett cciii ccitt ceci- cecie ceco- cecri ceere ceipp ceirt ceoce ceoor cepci cepet cepic cepie cepii cepot ceppo cerc- cerce cerci cerco cerec cerer ceret ceric cerie cerio cero- ceroc cerou cerre cerro certe cetic ceto- cette ceuti cicer ciceu cietc ciope cipce cipco ciper cippi cipre cipro circe circo ciric cirie cirio cirr- cirri cirro citec citee citer citie citou citr- citro citte ciuti co-co co-op cocc- cocce cocci cocco coceo cocio cocir cociu cocto cocur coepe coete coeur coice coire coiro coite cooee cooer cooie coope coopt coore coote copce copec copei coper copic copie copii copir copit coppe coppi coppo copr- copre copro copte copto copur coput corce core- coree corer coreu corie corio coro- coroi corop corot corpe corre corri corte corti corto coter cott- cotte cotto cottu cotui couco couer coupe coure couri court couru couto coutu cpctc cpeir cpi-u crece creep creer creio creo- creop creot crepe crept crepu crete cretu creu- creue creup crice crier crio- cripe cript crito croce croci croco crooe croop croot cropc crope cropo crore crote crott croup crout cruce cruet cruor crupe crure cteep ctree ctrie ctrip cttee cttoi cucei cucui cuero cueto cueup cuire cuite cuoco cuore cuper cupic cupr- cupro curce curer curet curic curie curio curre curri curro curti curto curup cutco cutcu cutee cuter cuti- cutie cutit cutro cutto cutup e-pro eccup ecipe ecori ecorp ecrit ecto- ector ectot eeeee eepee eerie eetti eieio eipic eipri eirie eiter eitri eorre epcot eperc epice epico epopt epote eppie epure erect erept erere erice erier eriic erio- erite eritu eroor erore eroto error errtu erte erter eruct erupt etete etio- etite etoro etour etree etter ettie eturu eucip eucre euric euro- europ eurre ice-t iceci iceit iceup icici icier icter ictic iecee ieiri iepe ieper ierei ieroe iette iiiee iiiii iitti ioooi ioooo iorio iotic iotit iotti ipcop iperu ipeti ipiti ipopt iport ipour ippee ippei ircii irece irepo irete irico irite irori irour irrep irrit irtec irupi itero itete itire itour itout itpro itrip itter ittoo ittre ittti itu-r itu-t ituri ituro ituru itutu iuput iurie occii occur ocice ocoee ocote ocree ocrie octet octic octo- octor oeco- oeiro oeppo oirot oitti oo-er oocre ooioo ooooo oopic oorie opcit opepe opere opici opico opier opiet opio- opir opito opper oppie opter optic optio opto- optot optto orcet orcop oreco oreo- oreoi orere orero orice orito oroco oroer oropi orout orpit orret orter ortet ortoo oruce oruro orutu otere oteri otero otice otoce otori ototo otour otpor otric otter ottir ottoi ottur oture ouert ouir- ouoro ource oure- ouric ourie outer outie outre outro outto